[rust-dev] Can Rust Git HEAD build Git HEAD itself?

Discussion:

Kai Noda

2014-08-30 01:49:20 UTC

Hi Rustlers,

When I build Rust Git HEAD with the binary package from rust-lang.org in
this way,

$ CC=gcc47 CXX=g++47 ./configure --prefix=$HOME/local/rust
--enable-valgrind --enable-local-rust
--local-rust-root=$HOME/local/rust-nightly-x86_64-unknown-linux-gnu/
$ make -j8 install

it (usually) works fine. However, whey I try to use the above installation
of Rust to build the same Git HEAD itself like this way,

CC=gcc47 CXX=g++47 ./configure --prefix=$HOME/local/rust --enable-valgrind
--enable-local-rust --local-rust-root=$HOME/local/rust
$ make

I've never been successful (as of today, I get errors quoted at the end of
this mail.)

Is this normal (do all developers usually use the binary package?) or
should I file bug reports to Github whenever I see them? I was a bit
surprised to see them because I thought (platform-triple)/stage[0-3] were
bootstrapping phases. Of course I'm well aware that Rust is in a very
early stage of development...

Regards,
Kai

?? ? <nodakai at gmail.com>

rustc:
x86_64-unknown-linux-gnu/stage0/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore
/home/nodakai/src/rust-HEAD/src/libcore/lib.rs:61:37: 61:57 warning:
feature has added to rust, directive not necessary
/home/nodakai/src/rust-HEAD/src/libcore/lib.rs:61 #![feature(simd,
unsafe_destructor, issue_5723_bootstrap)]

^~~~~~~~~~~~~~~~~~~~
/home/nodakai/src/rust-HEAD/src/libcore/cell.rs:337:1: 341:2 error: the
parameter type `T` may not live long enough; consider adding an explicit
lifetime bound `T:'b`...
/home/nodakai/src/rust-HEAD/src/libcore/cell.rs:337 pub struct Ref<'b, T> {
/home/nodakai/src/rust-HEAD/src/libcore/cell.rs:338 // FIXME #12808:
strange name to try to avoid interfering with
/home/nodakai/src/rust-HEAD/src/libcore/cell.rs:339 // field accesses
of the contained type via Deref
/home/nodakai/src/rust-HEAD/src/libcore/cell.rs:340 _parent: &'b
RefCell<T>
/home/nodakai/src/rust-HEAD/src/libcore/cell.rs:341 }
/home/nodakai/src/rust-HEAD/src/libcore/cell.rs:337:1: 341:2 note: ...so
that the reference type `&'b cell::RefCell<T>` does not outlive the data it
points at
/home/nodakai/src/rust-HEAD/src/libcore/cell.rs:337 pub struct Ref<'b, T> {
/home/nodakai/src/rust-HEAD/src/libcore/cell.rs:338 // FIXME #12808:
strange name to try to avoid interfering with
/home/nodakai/src/rust-HEAD/src/libcore/cell.rs:339 // field accesses
of the contained type via Deref
/home/nodakai/src/rust-HEAD/src/libcore/cell.rs:340 _parent: &'b
RefCell<T>
/home/nodakai/src/rust-HEAD/src/libcore/cell.rs:341 }
/home/nodakai/src/rust-HEAD/src/libcore/cell.rs:392:1: 396:2 error: the
parameter type `T` may not live long enough; consider adding an explicit
lifetime bound `T:'b`...
/home/nodakai/src/rust-HEAD/src/libcore/cell.rs:392 pub struct RefMut<'b,
T> {
/home/nodakai/src/rust-HEAD/src/libcore/cell.rs:393 // FIXME #12808:
strange name to try to avoid interfering with
/home/nodakai/src/rust-HEAD/src/libcore/cell.rs:394 // field accesses
of the contained type via Deref
/home/nodakai/src/rust-HEAD/src/libcore/cell.rs:395 _parent: &'b
RefCell<T>
/home/nodakai/src/rust-HEAD/src/libcore/cell.rs:396 }
/home/nodakai/src/rust-HEAD/src/libcore/cell.rs:392:1: 396:2 note: ...so
that the reference type `&'b cell::RefCell<T>` does not outlive the data it
points at
/home/nodakai/src/rust-HEAD/src/libcore/cell.rs:392 pub struct RefMut<'b,
T> {
/home/nodakai/src/rust-HEAD/src/libcore/cell.rs:393 // FIXME #12808:
strange name to try to avoid interfering with
/home/nodakai/src/rust-HEAD/src/libcore/cell.rs:394 // field accesses
of the contained type via Deref
/home/nodakai/src/rust-HEAD/src/libcore/cell.rs:395 _parent: &'b
RefCell<T>
/home/nodakai/src/rust-HEAD/src/libcore/cell.rs:396 }
/home/nodakai/src/rust-HEAD/src/libcore/finally.rs:112:1: 115:2 error: the
parameter type `A` may not live long enough; consider adding an explicit
lifetime bound `A:'a`...
/home/nodakai/src/rust-HEAD/src/libcore/finally.rs:112 struct
Finallyalizer<'a,A> {
/home/nodakai/src/rust-HEAD/src/libcore/finally.rs:113 mutate: &'a mut
A,
/home/nodakai/src/rust-HEAD/src/libcore/finally.rs:114 dtor: |&mut A|:
'a
/home/nodakai/src/rust-HEAD/src/libcore/finally.rs:115 }
/home/nodakai/src/rust-HEAD/src/libcore/finally.rs:112:1: 115:2 note: ...so
that the reference type `&'a mut A` does not outlive the data it points at
/home/nodakai/src/rust-HEAD/src/libcore/finally.rs:112 struct
Finallyalizer<'a,A> {
/home/nodakai/src/rust-HEAD/src/libcore/finally.rs:113 mutate: &'a mut
A,
/home/nodakai/src/rust-HEAD/src/libcore/finally.rs:114 dtor: |&mut A|:
'a
/home/nodakai/src/rust-HEAD/src/libcore/finally.rs:115 }
/home/nodakai/src/rust-HEAD/src/libcore/iter.rs:788:1: 790:2 error: the
parameter type `T` may not live long enough; consider adding an explicit
lifetime bound `T:'a`...
/home/nodakai/src/rust-HEAD/src/libcore/iter.rs:788 pub struct ByRef<'a, T>
{
/home/nodakai/src/rust-HEAD/src/libcore/iter.rs:789 iter: &'a mut T
/home/nodakai/src/rust-HEAD/src/libcore/iter.rs:790 }
/home/nodakai/src/rust-HEAD/src/libcore/iter.rs:788:1: 790:2 note: ...so
that the reference type `&'a mut T` does not outlive the data it points at
/home/nodakai/src/rust-HEAD/src/libcore/iter.rs:788 pub struct ByRef<'a, T>
{
/home/nodakai/src/rust-HEAD/src/libcore/iter.rs:789 iter: &'a mut T
/home/nodakai/src/rust-HEAD/src/libcore/iter.rs:790 }
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1138:1: 1142:2 error: the
parameter type `T` may not live long enough; consider adding an explicit
lifetime bound `T:'a`...
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1138 pub struct Splits<'a,
T> {
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1139 v: &'a [T],
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1140 pred: |t: &T|: 'a
-> bool,
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1141 finished: bool
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1142 }
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1138:1: 1142:2 note: ...so
that the reference type `&'a [T]` does not outlive the data it points at
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1138 pub struct Splits<'a,
T> {
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1139 v: &'a [T],
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1140 pred: |t: &T|: 'a
-> bool,
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1141 finished: bool
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1142 }
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1205:1: 1209:2 error: the
parameter type `T` may not live long enough; consider adding an explicit
lifetime bound `T:'a`...
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1205 pub struct
MutSplits<'a, T> {
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1206 v: &'a mut [T],
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1207 pred: |t: &T|: 'a
-> bool,
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1208 finished: bool
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1209 }
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1205:1: 1209:2 note: ...so
that the reference type `&'a mut [T]` does not outlive the data it points at
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1205 pub struct
MutSplits<'a, T> {
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1206 v: &'a mut [T],
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1207 pred: |t: &T|: 'a
-> bool,
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1208 finished: bool
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1209 }
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1321:1: 1324:2 error: the
parameter type `T` may not live long enough; consider adding an explicit
lifetime bound `T:'a`...
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1321 pub struct
Windows<'a, T> {
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1322 v: &'a [T],
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1323 size: uint
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1324 }
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1321:1: 1324:2 note: ...so
that the reference type `&'a [T]` does not outlive the data it points at
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1321 pub struct
Windows<'a, T> {
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1322 v: &'a [T],
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1323 size: uint
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1324 }
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1367:1: 1370:2 error: the
parameter type `T` may not live long enough; consider adding an explicit
lifetime bound `T:'a`...
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1367 pub struct Chunks<'a,
T> {
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1368 v: &'a [T],
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1369 size: uint
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1370 }
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1367:1: 1370:2 note: ...so
that the reference type `&'a [T]` does not outlive the data it points at
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1367 pub struct Chunks<'a,
T> {
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1368 v: &'a [T],
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1369 size: uint
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1370 }
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1459:1: 1462:2 error: the
parameter type `T` may not live long enough; consider adding an explicit
lifetime bound `T:'a`...
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1459 pub struct
MutChunks<'a, T> {
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1460 v: &'a mut [T],
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1461 chunk_size: uint
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1462 }
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1459:1: 1462:2 note: ...so
that the reference type `&'a mut [T]` does not outlive the data it points at
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1459 pub struct
MutChunks<'a, T> {
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1460 v: &'a mut [T],
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1461 chunk_size: uint
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1462 }
error: aborting due to 9 previous errors
make: ***
[x86_64-unknown-linux-gnu/stage0/lib/rustlib/x86_64-unknown-linux-gnu/lib/stamp.core]
Error 101
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Masanori Ogino

2014-08-30 02:07:11 UTC

Permalink

To bootstrap from binary snapshots, Rust often uses #[cfg(stage0)] and
#[cfg(not(stage0))] when breaking changes are approved. When we update
snapshots #[cfg(stage0)] code is removed and #[cfg(not(stage0))] code is
used in all stages.

If you use git HEAD Rust for bootstrapping after such breaking changes are
landed, git HEAD might fail to compile #[cfg(stage0)] code.

cf. https://github.com/rust-lang/rust/pull/16859

Post by Kai Noda
Hi Rustlers,
When I build Rust Git HEAD with the binary package from rust-lang.org in
this way,
$ CC=gcc47 CXX=g++47 ./configure --prefix=$HOME/local/rust
--enable-valgrind --enable-local-rust
--local-rust-root=$HOME/local/rust-nightly-x86_64-unknown-linux-gnu/
$ make -j8 install
it (usually) works fine. However, whey I try to use the above
installation of Rust to build the same Git HEAD itself like this way,
CC=gcc47 CXX=g++47 ./configure --prefix=$HOME/local/rust --enable-valgrind
--enable-local-rust --local-rust-root=$HOME/local/rust
$ make
I've never been successful (as of today, I get errors quoted at the end of
this mail.)
Is this normal (do all developers usually use the binary package?) or
should I file bug reports to Github whenever I see them? I was a bit
surprised to see them because I thought (platform-triple)/stage[0-3] were
bootstrapping phases. Of course I'm well aware that Rust is in a very
early stage of development...
Regards,
Kai
?? ? <nodakai at gmail.com>
x86_64-unknown-linux-gnu/stage0/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore
feature has added to rust, directive not necessary
/home/nodakai/src/rust-HEAD/src/libcore/lib.rs:61 #![feature(simd,
unsafe_destructor, issue_5723_bootstrap)]
^~~~~~~~~~~~~~~~~~~~
/home/nodakai/src/rust-HEAD/src/libcore/cell.rs:337:1: 341:2 error: the
parameter type `T` may not live long enough; consider adding an explicit
lifetime bound `T:'b`...
/home/nodakai/src/rust-HEAD/src/libcore/cell.rs:337 pub struct Ref<'b, T> {
strange name to try to avoid interfering with
/home/nodakai/src/rust-HEAD/src/libcore/cell.rs:339 // field accesses
of the contained type via Deref
/home/nodakai/src/rust-HEAD/src/libcore/cell.rs:340 _parent: &'b
RefCell<T>
/home/nodakai/src/rust-HEAD/src/libcore/cell.rs:341 }
/home/nodakai/src/rust-HEAD/src/libcore/cell.rs:337:1: 341:2 note: ...so
that the reference type `&'b cell::RefCell<T>` does not outlive the data it
points at
/home/nodakai/src/rust-HEAD/src/libcore/cell.rs:337 pub struct Ref<'b, T> {
strange name to try to avoid interfering with
/home/nodakai/src/rust-HEAD/src/libcore/cell.rs:339 // field accesses
of the contained type via Deref
/home/nodakai/src/rust-HEAD/src/libcore/cell.rs:340 _parent: &'b
RefCell<T>
/home/nodakai/src/rust-HEAD/src/libcore/cell.rs:341 }
/home/nodakai/src/rust-HEAD/src/libcore/cell.rs:392:1: 396:2 error: the
parameter type `T` may not live long enough; consider adding an explicit
lifetime bound `T:'b`...
/home/nodakai/src/rust-HEAD/src/libcore/cell.rs:392 pub struct RefMut<'b,
T> {
strange name to try to avoid interfering with
/home/nodakai/src/rust-HEAD/src/libcore/cell.rs:394 // field accesses
of the contained type via Deref
/home/nodakai/src/rust-HEAD/src/libcore/cell.rs:395 _parent: &'b
RefCell<T>
/home/nodakai/src/rust-HEAD/src/libcore/cell.rs:396 }
/home/nodakai/src/rust-HEAD/src/libcore/cell.rs:392:1: 396:2 note: ...so
that the reference type `&'b cell::RefCell<T>` does not outlive the data it
points at
/home/nodakai/src/rust-HEAD/src/libcore/cell.rs:392 pub struct RefMut<'b,
T> {
strange name to try to avoid interfering with
/home/nodakai/src/rust-HEAD/src/libcore/cell.rs:394 // field accesses
of the contained type via Deref
/home/nodakai/src/rust-HEAD/src/libcore/cell.rs:395 _parent: &'b
RefCell<T>
/home/nodakai/src/rust-HEAD/src/libcore/cell.rs:396 }
the parameter type `A` may not live long enough; consider adding an
explicit lifetime bound `A:'a`...
/home/nodakai/src/rust-HEAD/src/libcore/finally.rs:112 struct
Finallyalizer<'a,A> {
/home/nodakai/src/rust-HEAD/src/libcore/finally.rs:113 mutate: &'a
mut A,
/home/nodakai/src/rust-HEAD/src/libcore/finally.rs:114 dtor: |&mut
A|: 'a
/home/nodakai/src/rust-HEAD/src/libcore/finally.rs:115 }
...so that the reference type `&'a mut A` does not outlive the data it
points at
/home/nodakai/src/rust-HEAD/src/libcore/finally.rs:112 struct
Finallyalizer<'a,A> {
/home/nodakai/src/rust-HEAD/src/libcore/finally.rs:113 mutate: &'a
mut A,
/home/nodakai/src/rust-HEAD/src/libcore/finally.rs:114 dtor: |&mut
A|: 'a
/home/nodakai/src/rust-HEAD/src/libcore/finally.rs:115 }
/home/nodakai/src/rust-HEAD/src/libcore/iter.rs:788:1: 790:2 error: the
parameter type `T` may not live long enough; consider adding an explicit
lifetime bound `T:'a`...
/home/nodakai/src/rust-HEAD/src/libcore/iter.rs:788 pub struct ByRef<'a,
T> {
/home/nodakai/src/rust-HEAD/src/libcore/iter.rs:789 iter: &'a mut T
/home/nodakai/src/rust-HEAD/src/libcore/iter.rs:790 }
/home/nodakai/src/rust-HEAD/src/libcore/iter.rs:788:1: 790:2 note: ...so
that the reference type `&'a mut T` does not outlive the data it points at
/home/nodakai/src/rust-HEAD/src/libcore/iter.rs:788 pub struct ByRef<'a,
T> {
/home/nodakai/src/rust-HEAD/src/libcore/iter.rs:789 iter: &'a mut T
/home/nodakai/src/rust-HEAD/src/libcore/iter.rs:790 }
the parameter type `T` may not live long enough; consider adding an
explicit lifetime bound `T:'a`...
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1138 pub struct
Splits<'a, T> {
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1139 v: &'a [T],
'a -> bool,
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1141 finished: bool
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1142 }
...so that the reference type `&'a [T]` does not outlive the data it points
at
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1138 pub struct
Splits<'a, T> {
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1139 v: &'a [T],
'a -> bool,
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1141 finished: bool
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1142 }
the parameter type `T` may not live long enough; consider adding an
explicit lifetime bound `T:'a`...
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1205 pub struct
MutSplits<'a, T> {
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1206 v: &'a mut [T],
'a -> bool,
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1208 finished: bool
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1209 }
...so that the reference type `&'a mut [T]` does not outlive the data it
points at
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1205 pub struct
MutSplits<'a, T> {
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1206 v: &'a mut [T],
'a -> bool,
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1208 finished: bool
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1209 }
the parameter type `T` may not live long enough; consider adding an
explicit lifetime bound `T:'a`...
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1321 pub struct
Windows<'a, T> {
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1322 v: &'a [T],
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1323 size: uint
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1324 }
...so that the reference type `&'a [T]` does not outlive the data it points
at
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1321 pub struct
Windows<'a, T> {
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1322 v: &'a [T],
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1323 size: uint
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1324 }
the parameter type `T` may not live long enough; consider adding an
explicit lifetime bound `T:'a`...
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1367 pub struct
Chunks<'a, T> {
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1368 v: &'a [T],
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1369 size: uint
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1370 }
...so that the reference type `&'a [T]` does not outlive the data it points
at
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1367 pub struct
Chunks<'a, T> {
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1368 v: &'a [T],
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1369 size: uint
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1370 }
the parameter type `T` may not live long enough; consider adding an
explicit lifetime bound `T:'a`...
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1459 pub struct
MutChunks<'a, T> {
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1460 v: &'a mut [T],
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1461 chunk_size: uint
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1462 }
...so that the reference type `&'a mut [T]` does not outlive the data it
points at
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1459 pub struct
MutChunks<'a, T> {
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1460 v: &'a mut [T],
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1461 chunk_size: uint
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1462 }
error: aborting due to 9 previous errors
make: ***
[x86_64-unknown-linux-gnu/stage0/lib/rustlib/x86_64-unknown-linux-gnu/lib/stamp.core]
Error 101
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Masanori Ogino <masanori.ogino at gmail.com>
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Huon Wilson

2014-08-30 02:15:06 UTC

Permalink

Yes, the first stage of bootstrapping uses a binary snapshot of some
older commit (you need a Rust compiler to build Rust, so we need to do
this). There's no particular guarantee that the snapshot has the same
behaviour as the version being compiled, and in general it doesn't, as
you see.

The libraries have to phase themselves, using #[cfg(stage0)] to specify
the code that is compiled with the snapshot, and #[cfg(not(stage0))] for
the code that should be compiled with the non-snapshot stages (i.e. the
newer compiler with all the latest features). e.g. the error you see
there has these markings
https://github.com/rust-lang/rust/blob/5419b2ca2c27b4745fa1f2773719350420542c76/src/libcore/cell.rs#L325-L341
. This means using a compiler inappropriate for stage0 as the snapshot
(like HEAD, which needs to be using the not(stage0) code) will try to
compile code that is broken for it.

The fact that it works with nightly is essentially just a coincidence
that the versions match closely enough (the Rust nightly is 12 hours
behind HEAD on average, and so may be missing the breaking commits).

In summary: local-rust failing is not a bug, it's just a consequence of
us bootstrapping while changing the language.

Huon

Post by Kai Noda
Hi Rustlers,
When I build Rust Git HEAD with the binary package from rust-lang.org
<http://rust-lang.org> in this way,
$ CC=gcc47 CXX=g++47 ./configure --prefix=$HOME/local/rust
--enable-valgrind --enable-local-rust
--local-rust-root=$HOME/local/rust-nightly-x86_64-unknown-linux-gnu/
$ make -j8 install
it (usually) works fine. However, whey I try to use the above
installation of Rust to build the same Git HEAD itself like this way,
CC=gcc47 CXX=g++47 ./configure --prefix=$HOME/local/rust
--enable-valgrind --enable-local-rust --local-rust-root=$HOME/local/rust
$ make
I've never been successful (as of today, I get errors quoted at the
end of this mail.)
Is this normal (do all developers usually use the binary package?) or
should I file bug reports to Github whenever I see them? I was a bit
surprised to see them because I thought (platform-triple)/stage[0-3]
were bootstrapping phases. Of course I'm well aware that Rust is in a
very early stage of development...
Regards,
Kai
?? ? <nodakai at gmail.com <mailto:nodakai at gmail.com>>
x86_64-unknown-linux-gnu/stage0/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore
feature has added to rust, directive not necessary
/home/nodakai/src/rust-HEAD/src/libcore/lib.rs:61 <http://lib.rs:61>
#![feature(simd, unsafe_destructor, issue_5723_bootstrap)]
^~~~~~~~~~~~~~~~~~~~
the parameter type `T` may not live long enough; consider adding an
explicit lifetime bound `T:'b`...
/home/nodakai/src/rust-HEAD/src/libcore/cell.rs:337
<http://cell.rs:337> pub struct Ref<'b, T> {
/home/nodakai/src/rust-HEAD/src/libcore/cell.rs:338
<http://cell.rs:338> // FIXME #12808: strange name to try to avoid
interfering with
/home/nodakai/src/rust-HEAD/src/libcore/cell.rs:339
<http://cell.rs:339> // field accesses of the contained type via Deref
/home/nodakai/src/rust-HEAD/src/libcore/cell.rs:340
<http://cell.rs:340> _parent: &'b RefCell<T>
/home/nodakai/src/rust-HEAD/src/libcore/cell.rs:341 <http://cell.rs:341> }
...so that the reference type `&'b cell::RefCell<T>` does not outlive
the data it points at
/home/nodakai/src/rust-HEAD/src/libcore/cell.rs:337
<http://cell.rs:337> pub struct Ref<'b, T> {
/home/nodakai/src/rust-HEAD/src/libcore/cell.rs:338
<http://cell.rs:338> // FIXME #12808: strange name to try to avoid
interfering with
/home/nodakai/src/rust-HEAD/src/libcore/cell.rs:339
<http://cell.rs:339> // field accesses of the contained type via Deref
/home/nodakai/src/rust-HEAD/src/libcore/cell.rs:340
<http://cell.rs:340> _parent: &'b RefCell<T>
/home/nodakai/src/rust-HEAD/src/libcore/cell.rs:341 <http://cell.rs:341> }
the parameter type `T` may not live long enough; consider adding an
explicit lifetime bound `T:'b`...
/home/nodakai/src/rust-HEAD/src/libcore/cell.rs:392
<http://cell.rs:392> pub struct RefMut<'b, T> {
/home/nodakai/src/rust-HEAD/src/libcore/cell.rs:393
<http://cell.rs:393> // FIXME #12808: strange name to try to avoid
interfering with
/home/nodakai/src/rust-HEAD/src/libcore/cell.rs:394
<http://cell.rs:394> // field accesses of the contained type via Deref
/home/nodakai/src/rust-HEAD/src/libcore/cell.rs:395
<http://cell.rs:395> _parent: &'b RefCell<T>
/home/nodakai/src/rust-HEAD/src/libcore/cell.rs:396 <http://cell.rs:396> }
...so that the reference type `&'b cell::RefCell<T>` does not outlive
the data it points at
/home/nodakai/src/rust-HEAD/src/libcore/cell.rs:392
<http://cell.rs:392> pub struct RefMut<'b, T> {
/home/nodakai/src/rust-HEAD/src/libcore/cell.rs:393
<http://cell.rs:393> // FIXME #12808: strange name to try to avoid
interfering with
/home/nodakai/src/rust-HEAD/src/libcore/cell.rs:394
<http://cell.rs:394> // field accesses of the contained type via Deref
/home/nodakai/src/rust-HEAD/src/libcore/cell.rs:395
<http://cell.rs:395> _parent: &'b RefCell<T>
/home/nodakai/src/rust-HEAD/src/libcore/cell.rs:396 <http://cell.rs:396> }
the parameter type `A` may not live long enough; consider adding an
explicit lifetime bound `A:'a`...
/home/nodakai/src/rust-HEAD/src/libcore/finally.rs:112
<http://finally.rs:112> struct Finallyalizer<'a,A> {
/home/nodakai/src/rust-HEAD/src/libcore/finally.rs:113
<http://finally.rs:113> mutate: &'a mut A,
/home/nodakai/src/rust-HEAD/src/libcore/finally.rs:114
<http://finally.rs:114> dtor: |&mut A|: 'a
/home/nodakai/src/rust-HEAD/src/libcore/finally.rs:115
<http://finally.rs:115> }
...so that the reference type `&'a mut A` does not outlive the data it
points at
/home/nodakai/src/rust-HEAD/src/libcore/finally.rs:112
<http://finally.rs:112> struct Finallyalizer<'a,A> {
/home/nodakai/src/rust-HEAD/src/libcore/finally.rs:113
<http://finally.rs:113> mutate: &'a mut A,
/home/nodakai/src/rust-HEAD/src/libcore/finally.rs:114
<http://finally.rs:114> dtor: |&mut A|: 'a
/home/nodakai/src/rust-HEAD/src/libcore/finally.rs:115
<http://finally.rs:115> }
the parameter type `T` may not live long enough; consider adding an
explicit lifetime bound `T:'a`...
/home/nodakai/src/rust-HEAD/src/libcore/iter.rs:788
<http://iter.rs:788> pub struct ByRef<'a, T> {
/home/nodakai/src/rust-HEAD/src/libcore/iter.rs:789
<http://iter.rs:789> iter: &'a mut T
/home/nodakai/src/rust-HEAD/src/libcore/iter.rs:790 <http://iter.rs:790> }
...so that the reference type `&'a mut T` does not outlive the data it
points at
/home/nodakai/src/rust-HEAD/src/libcore/iter.rs:788
<http://iter.rs:788> pub struct ByRef<'a, T> {
/home/nodakai/src/rust-HEAD/src/libcore/iter.rs:789
<http://iter.rs:789> iter: &'a mut T
/home/nodakai/src/rust-HEAD/src/libcore/iter.rs:790 <http://iter.rs:790> }
the parameter type `T` may not live long enough; consider adding an
explicit lifetime bound `T:'a`...
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1138
<http://slice.rs:1138> pub struct Splits<'a, T> {
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1139
<http://slice.rs:1139> v: &'a [T],
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1140
<http://slice.rs:1140> pred: |t: &T|: 'a -> bool,
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1141
<http://slice.rs:1141> finished: bool
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1142
<http://slice.rs:1142> }
...so that the reference type `&'a [T]` does not outlive the data it
points at
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1138
<http://slice.rs:1138> pub struct Splits<'a, T> {
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1139
<http://slice.rs:1139> v: &'a [T],
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1140
<http://slice.rs:1140> pred: |t: &T|: 'a -> bool,
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1141
<http://slice.rs:1141> finished: bool
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1142
<http://slice.rs:1142> }
the parameter type `T` may not live long enough; consider adding an
explicit lifetime bound `T:'a`...
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1205
<http://slice.rs:1205> pub struct MutSplits<'a, T> {
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1206
<http://slice.rs:1206> v: &'a mut [T],
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1207
<http://slice.rs:1207> pred: |t: &T|: 'a -> bool,
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1208
<http://slice.rs:1208> finished: bool
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1209
<http://slice.rs:1209> }
...so that the reference type `&'a mut [T]` does not outlive the data
it points at
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1205
<http://slice.rs:1205> pub struct MutSplits<'a, T> {
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1206
<http://slice.rs:1206> v: &'a mut [T],
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1207
<http://slice.rs:1207> pred: |t: &T|: 'a -> bool,
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1208
<http://slice.rs:1208> finished: bool
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1209
<http://slice.rs:1209> }
the parameter type `T` may not live long enough; consider adding an
explicit lifetime bound `T:'a`...
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1321
<http://slice.rs:1321> pub struct Windows<'a, T> {
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1322
<http://slice.rs:1322> v: &'a [T],
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1323
<http://slice.rs:1323> size: uint
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1324
<http://slice.rs:1324> }
...so that the reference type `&'a [T]` does not outlive the data it
points at
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1321
<http://slice.rs:1321> pub struct Windows<'a, T> {
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1322
<http://slice.rs:1322> v: &'a [T],
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1323
<http://slice.rs:1323> size: uint
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1324
<http://slice.rs:1324> }
the parameter type `T` may not live long enough; consider adding an
explicit lifetime bound `T:'a`...
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1367
<http://slice.rs:1367> pub struct Chunks<'a, T> {
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1368
<http://slice.rs:1368> v: &'a [T],
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1369
<http://slice.rs:1369> size: uint
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1370
<http://slice.rs:1370> }
...so that the reference type `&'a [T]` does not outlive the data it
points at
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1367
<http://slice.rs:1367> pub struct Chunks<'a, T> {
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1368
<http://slice.rs:1368> v: &'a [T],
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1369
<http://slice.rs:1369> size: uint
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1370
<http://slice.rs:1370> }
the parameter type `T` may not live long enough; consider adding an
explicit lifetime bound `T:'a`...
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1459
<http://slice.rs:1459> pub struct MutChunks<'a, T> {
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1460
<http://slice.rs:1460> v: &'a mut [T],
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1461
<http://slice.rs:1461> chunk_size: uint
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1462
<http://slice.rs:1462> }
...so that the reference type `&'a mut [T]` does not outlive the data
it points at
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1459
<http://slice.rs:1459> pub struct MutChunks<'a, T> {
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1460
<http://slice.rs:1460> v: &'a mut [T],
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1461
<http://slice.rs:1461> chunk_size: uint
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1462
<http://slice.rs:1462> }
error: aborting due to 9 previous errors
make: ***
[x86_64-unknown-linux-gnu/stage0/lib/rustlib/x86_64-unknown-linux-gnu/lib/stamp.core]
Error 101
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Kai Noda

2014-08-30 04:15:34 UTC

Permalink

Hi Ogino-san and Huon,

Thanks a lot for your quick but detailed answers! Now I have a better
understanding of the build process. So if I use the terminology defined in
the below (a bit outdated) wiki page, it's like you removed "stage0" and
then split "stage1" into two sub-stages (with and without #[cfg] clauses.)

https://github.com/rust-lang/rust/wiki/Note-compiler-snapshots

(~_~).oO(It seems to me that stage2 and 3 are identical now...)

Anyways, I get to understand that living only with the Git repo is
practically impossible since there's no official way to know what version
#[cfg(stage0)] clauses expect and thus there's no other way than to
download the nightly build frequently enough.

Kai

Post by Huon Wilson
Yes, the first stage of bootstrapping uses a binary snapshot of some
older commit (you need a Rust compiler to build Rust, so we need to do
this). There's no particular guarantee that the snapshot has the same
behaviour as the version being compiled, and in general it doesn't, as you
see.
The libraries have to phase themselves, using #[cfg(stage0)] to specify
the code that is compiled with the snapshot, and #[cfg(not(stage0))] for
the code that should be compiled with the non-snapshot stages (i.e. the
newer compiler with all the latest features). e.g. the error you see there
has these markings
https://github.com/rust-lang/rust/blob/5419b2ca2c27b4745fa1f2773719350420542c76/src/libcore/cell.rs#L325-L341
. This means using a compiler inappropriate for stage0 as the snapshot
(like HEAD, which needs to be using the not(stage0) code) will try to
compile code that is broken for it.
The fact that it works with nightly is essentially just a coincidence that
the versions match closely enough (the Rust nightly is 12 hours behind HEAD
on average, and so may be missing the breaking commits).
In summary: local-rust failing is not a bug, it's just a consequence of us
bootstrapping while changing the language.
Huon
Hi Rustlers,
When I build Rust Git HEAD with the binary package from rust-lang.org in
this way,
$ CC=gcc47 CXX=g++47 ./configure --prefix=$HOME/local/rust
--enable-valgrind --enable-local-rust
--local-rust-root=$HOME/local/rust-nightly-x86_64-unknown-linux-gnu/
$ make -j8 install
it (usually) works fine. However, whey I try to use the above
installation of Rust to build the same Git HEAD itself like this way,
CC=gcc47 CXX=g++47 ./configure --prefix=$HOME/local/rust
--enable-valgrind --enable-local-rust --local-rust-root=$HOME/local/rust
$ make
I've never been successful (as of today, I get errors quoted at the end
of this mail.)
Is this normal (do all developers usually use the binary package?) or
should I file bug reports to Github whenever I see them? I was a bit
surprised to see them because I thought (platform-triple)/stage[0-3] were
bootstrapping phases. Of course I'm well aware that Rust is in a very
early stage of development...
Regards,
Kai
?? ? <nodakai at gmail.com>
x86_64-unknown-linux-gnu/stage0/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore
feature has added to rust, directive not necessary
/home/nodakai/src/rust-HEAD/src/libcore/lib.rs:61 #![feature(simd,
unsafe_destructor, issue_5723_bootstrap)]
^~~~~~~~~~~~~~~~~~~~
/home/nodakai/src/rust-HEAD/src/libcore/cell.rs:337:1: 341:2 error: the
parameter type `T` may not live long enough; consider adding an explicit
lifetime bound `T:'b`...
/home/nodakai/src/rust-HEAD/src/libcore/cell.rs:337 pub struct Ref<'b, T> {
strange name to try to avoid interfering with
/home/nodakai/src/rust-HEAD/src/libcore/cell.rs:339 // field accesses
of the contained type via Deref
/home/nodakai/src/rust-HEAD/src/libcore/cell.rs:340 _parent: &'b
RefCell<T>
/home/nodakai/src/rust-HEAD/src/libcore/cell.rs:341 }
/home/nodakai/src/rust-HEAD/src/libcore/cell.rs:337:1: 341:2 note: ...so
that the reference type `&'b cell::RefCell<T>` does not outlive the data it
points at
/home/nodakai/src/rust-HEAD/src/libcore/cell.rs:337 pub struct Ref<'b, T> {
strange name to try to avoid interfering with
/home/nodakai/src/rust-HEAD/src/libcore/cell.rs:339 // field accesses
of the contained type via Deref
/home/nodakai/src/rust-HEAD/src/libcore/cell.rs:340 _parent: &'b
RefCell<T>
/home/nodakai/src/rust-HEAD/src/libcore/cell.rs:341 }
/home/nodakai/src/rust-HEAD/src/libcore/cell.rs:392:1: 396:2 error: the
parameter type `T` may not live long enough; consider adding an explicit
lifetime bound `T:'b`...
/home/nodakai/src/rust-HEAD/src/libcore/cell.rs:392 pub struct RefMut<'b,
T> {
strange name to try to avoid interfering with
/home/nodakai/src/rust-HEAD/src/libcore/cell.rs:394 // field accesses
of the contained type via Deref
/home/nodakai/src/rust-HEAD/src/libcore/cell.rs:395 _parent: &'b
RefCell<T>
/home/nodakai/src/rust-HEAD/src/libcore/cell.rs:396 }
/home/nodakai/src/rust-HEAD/src/libcore/cell.rs:392:1: 396:2 note: ...so
that the reference type `&'b cell::RefCell<T>` does not outlive the data it
points at
/home/nodakai/src/rust-HEAD/src/libcore/cell.rs:392 pub struct RefMut<'b,
T> {
strange name to try to avoid interfering with
/home/nodakai/src/rust-HEAD/src/libcore/cell.rs:394 // field accesses
of the contained type via Deref
/home/nodakai/src/rust-HEAD/src/libcore/cell.rs:395 _parent: &'b
RefCell<T>
/home/nodakai/src/rust-HEAD/src/libcore/cell.rs:396 }
the parameter type `A` may not live long enough; consider adding an
explicit lifetime bound `A:'a`...
/home/nodakai/src/rust-HEAD/src/libcore/finally.rs:112 struct
Finallyalizer<'a,A> {
/home/nodakai/src/rust-HEAD/src/libcore/finally.rs:113 mutate: &'a
mut A,
/home/nodakai/src/rust-HEAD/src/libcore/finally.rs:114 dtor: |&mut
A|: 'a
/home/nodakai/src/rust-HEAD/src/libcore/finally.rs:115 }
...so that the reference type `&'a mut A` does not outlive the data it
points at
/home/nodakai/src/rust-HEAD/src/libcore/finally.rs:112 struct
Finallyalizer<'a,A> {
/home/nodakai/src/rust-HEAD/src/libcore/finally.rs:113 mutate: &'a
mut A,
/home/nodakai/src/rust-HEAD/src/libcore/finally.rs:114 dtor: |&mut
A|: 'a
/home/nodakai/src/rust-HEAD/src/libcore/finally.rs:115 }
/home/nodakai/src/rust-HEAD/src/libcore/iter.rs:788:1: 790:2 error: the
parameter type `T` may not live long enough; consider adding an explicit
lifetime bound `T:'a`...
/home/nodakai/src/rust-HEAD/src/libcore/iter.rs:788 pub struct ByRef<'a,
T> {
/home/nodakai/src/rust-HEAD/src/libcore/iter.rs:789 iter: &'a mut T
/home/nodakai/src/rust-HEAD/src/libcore/iter.rs:790 }
/home/nodakai/src/rust-HEAD/src/libcore/iter.rs:788:1: 790:2 note: ...so
that the reference type `&'a mut T` does not outlive the data it points at
/home/nodakai/src/rust-HEAD/src/libcore/iter.rs:788 pub struct ByRef<'a,
T> {
/home/nodakai/src/rust-HEAD/src/libcore/iter.rs:789 iter: &'a mut T
/home/nodakai/src/rust-HEAD/src/libcore/iter.rs:790 }
the parameter type `T` may not live long enough; consider adding an
explicit lifetime bound `T:'a`...
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1138 pub struct
Splits<'a, T> {
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1139 v: &'a [T],
'a -> bool,
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1141 finished: bool
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1142 }
...so that the reference type `&'a [T]` does not outlive the data it points
at
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1138 pub struct
Splits<'a, T> {
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1139 v: &'a [T],
'a -> bool,
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1141 finished: bool
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1142 }
the parameter type `T` may not live long enough; consider adding an
explicit lifetime bound `T:'a`...
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1205 pub struct
MutSplits<'a, T> {
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1206 v: &'a mut [T],
'a -> bool,
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1208 finished: bool
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1209 }
...so that the reference type `&'a mut [T]` does not outlive the data it
points at
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1205 pub struct
MutSplits<'a, T> {
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1206 v: &'a mut [T],
'a -> bool,
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1208 finished: bool
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1209 }
the parameter type `T` may not live long enough; consider adding an
explicit lifetime bound `T:'a`...
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1321 pub struct
Windows<'a, T> {
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1322 v: &'a [T],
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1323 size: uint
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1324 }
...so that the reference type `&'a [T]` does not outlive the data it points
at
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1321 pub struct
Windows<'a, T> {
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1322 v: &'a [T],
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1323 size: uint
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1324 }
the parameter type `T` may not live long enough; consider adding an
explicit lifetime bound `T:'a`...
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1367 pub struct
Chunks<'a, T> {
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1368 v: &'a [T],
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1369 size: uint
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1370 }
...so that the reference type `&'a [T]` does not outlive the data it points
at
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1367 pub struct
Chunks<'a, T> {
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1368 v: &'a [T],
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1369 size: uint
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1370 }
the parameter type `T` may not live long enough; consider adding an
explicit lifetime bound `T:'a`...
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1459 pub struct
MutChunks<'a, T> {
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1460 v: &'a mut [T],
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1461 chunk_size: uint
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1462 }
...so that the reference type `&'a mut [T]` does not outlive the data it
points at
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1459 pub struct
MutChunks<'a, T> {
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1460 v: &'a mut [T],
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1461 chunk_size: uint
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1462 }
error: aborting due to 9 previous errors
make: ***
[x86_64-unknown-linux-gnu/stage0/lib/rustlib/x86_64-unknown-linux-gnu/lib/stamp.core]
Error 101
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Huon Wilson

2014-08-30 05:03:19 UTC

Permalink

The information is recorded in
https://github.com/rust-lang/rust/blob/master/src/snapshots.txt e.g. at
the time of writing the most recent snapshot is of commit a86d9ad ==
a86d9ad15e339ab343a12513f9c90556f677b9ca.

In any case, building from source with anything other than the provided
stage0 snapshots (i.e. the ones that are downloaded by default by the
makefiles) is going to be annoying.

Huon

Post by Kai Noda
Hi Ogino-san and Huon,
Thanks a lot for your quick but detailed answers! Now I have a better
understanding of the build process. So if I use the
terminology defined in the below (a bit outdated) wiki page, it's like
you removed "stage0" and then split "stage1" into two sub-stages (with
and without #[cfg] clauses.)
https://github.com/rust-lang/rust/wiki/Note-compiler-snapshots
(~_~).oO(It seems to me that stage2 and 3 are identical now...)
Anyways, I get to understand that living only with the Git repo is
practically impossible since there's no official way to know what
version #[cfg(stage0)] clauses expect and thus there's no other way
than to download the nightly build frequently enough.
Kai
2014-08-30 10:15 GMT+08:00 Huon Wilson <dbau.pp at gmail.com
Yes, the first stage of bootstrapping uses a binary snapshot of
some older commit (you need a Rust compiler to build Rust, so we
need to do this). There's no particular guarantee that the
snapshot has the same behaviour as the version being compiled, and
in general it doesn't, as you see.
The libraries have to phase themselves, using #[cfg(stage0)] to
specify the code that is compiled with the snapshot, and
#[cfg(not(stage0))] for the code that should be compiled with the
non-snapshot stages (i.e. the newer compiler with all the latest
features). e.g. the error you see there has these markings
https://github.com/rust-lang/rust/blob/5419b2ca2c27b4745fa1f2773719350420542c76/src/libcore/cell.rs#L325-L341
. This means using a compiler inappropriate for stage0 as the
snapshot (like HEAD, which needs to be using the not(stage0) code)
will try to compile code that is broken for it.
The fact that it works with nightly is essentially just a
coincidence that the versions match closely enough (the Rust
nightly is 12 hours behind HEAD on average, and so may be missing
the breaking commits).
In summary: local-rust failing is not a bug, it's just a
consequence of us bootstrapping while changing the language.
Huon

Post by Kai Noda
Hi Rustlers,
When I build Rust Git HEAD with the binary package from
rust-lang.org <http://rust-lang.org> in this way,
$ CC=gcc47 CXX=g++47 ./configure --prefix=$HOME/local/rust
--enable-valgrind --enable-local-rust
--local-rust-root=$HOME/local/rust-nightly-x86_64-unknown-linux-gnu/
$ make -j8 install
it (usually) works fine. However, whey I try to use the above
installation of Rust to build the same Git HEAD itself like this way,
CC=gcc47 CXX=g++47 ./configure --prefix=$HOME/local/rust
--enable-valgrind --enable-local-rust
--local-rust-root=$HOME/local/rust
$ make
I've never been successful (as of today, I get errors quoted at
the end of this mail.)
Is this normal (do all developers usually use the binary
package?) or should I file bug reports to Github whenever I see
them? I was a bit surprised to see them because I thought
(platform-triple)/stage[0-3] were bootstrapping phases. Of
course I'm well aware that Rust is in a very early stage of
development...
Regards,
Kai
?? ? <nodakai at gmail.com <mailto:nodakai at gmail.com>>
x86_64-unknown-linux-gnu/stage0/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore
/home/nodakai/src/rust-HEAD/src/libcore/lib.rs:61:37: 61:57
warning: feature has added to rust, directive not necessary
/home/nodakai/src/rust-HEAD/src/libcore/lib.rs:61
<http://lib.rs:61> #![feature(simd, unsafe_destructor,
issue_5723_bootstrap)]
^~~~~~~~~~~~~~~~~~~~
/home/nodakai/src/rust-HEAD/src/libcore/cell.rs:337:1: 341:2
error: the parameter type `T` may not live long enough; consider
adding an explicit lifetime bound `T:'b`...
/home/nodakai/src/rust-HEAD/src/libcore/cell.rs:337
<http://cell.rs:337> pub struct Ref<'b, T> {
/home/nodakai/src/rust-HEAD/src/libcore/cell.rs:338
<http://cell.rs:338> // FIXME #12808: strange name to try to
avoid interfering with
/home/nodakai/src/rust-HEAD/src/libcore/cell.rs:339
<http://cell.rs:339> // field accesses of the contained type via Deref
/home/nodakai/src/rust-HEAD/src/libcore/cell.rs:340
<http://cell.rs:340> _parent: &'b RefCell<T>
/home/nodakai/src/rust-HEAD/src/libcore/cell.rs:341
<http://cell.rs:341> }
/home/nodakai/src/rust-HEAD/src/libcore/cell.rs:337:1: 341:2
note: ...so that the reference type `&'b cell::RefCell<T>` does
not outlive the data it points at
/home/nodakai/src/rust-HEAD/src/libcore/cell.rs:337
<http://cell.rs:337> pub struct Ref<'b, T> {
/home/nodakai/src/rust-HEAD/src/libcore/cell.rs:338
<http://cell.rs:338> // FIXME #12808: strange name to try to
avoid interfering with
/home/nodakai/src/rust-HEAD/src/libcore/cell.rs:339
<http://cell.rs:339> // field accesses of the contained type via Deref
/home/nodakai/src/rust-HEAD/src/libcore/cell.rs:340
<http://cell.rs:340> _parent: &'b RefCell<T>
/home/nodakai/src/rust-HEAD/src/libcore/cell.rs:341
<http://cell.rs:341> }
/home/nodakai/src/rust-HEAD/src/libcore/cell.rs:392:1: 396:2
error: the parameter type `T` may not live long enough; consider
adding an explicit lifetime bound `T:'b`...
/home/nodakai/src/rust-HEAD/src/libcore/cell.rs:392
<http://cell.rs:392> pub struct RefMut<'b, T> {
/home/nodakai/src/rust-HEAD/src/libcore/cell.rs:393
<http://cell.rs:393> // FIXME #12808: strange name to try to
avoid interfering with
/home/nodakai/src/rust-HEAD/src/libcore/cell.rs:394
<http://cell.rs:394> // field accesses of the contained type via Deref
/home/nodakai/src/rust-HEAD/src/libcore/cell.rs:395
<http://cell.rs:395> _parent: &'b RefCell<T>
/home/nodakai/src/rust-HEAD/src/libcore/cell.rs:396
<http://cell.rs:396> }
/home/nodakai/src/rust-HEAD/src/libcore/cell.rs:392:1: 396:2
note: ...so that the reference type `&'b cell::RefCell<T>` does
not outlive the data it points at
/home/nodakai/src/rust-HEAD/src/libcore/cell.rs:392
<http://cell.rs:392> pub struct RefMut<'b, T> {
/home/nodakai/src/rust-HEAD/src/libcore/cell.rs:393
<http://cell.rs:393> // FIXME #12808: strange name to try to
avoid interfering with
/home/nodakai/src/rust-HEAD/src/libcore/cell.rs:394
<http://cell.rs:394> // field accesses of the contained type via Deref
/home/nodakai/src/rust-HEAD/src/libcore/cell.rs:395
<http://cell.rs:395> _parent: &'b RefCell<T>
/home/nodakai/src/rust-HEAD/src/libcore/cell.rs:396
<http://cell.rs:396> }
/home/nodakai/src/rust-HEAD/src/libcore/finally.rs:112:1: 115:2
error: the parameter type `A` may not live long enough; consider
adding an explicit lifetime bound `A:'a`...
/home/nodakai/src/rust-HEAD/src/libcore/finally.rs:112
<http://finally.rs:112> struct Finallyalizer<'a,A> {
/home/nodakai/src/rust-HEAD/src/libcore/finally.rs:113
<http://finally.rs:113> mutate: &'a mut A,
/home/nodakai/src/rust-HEAD/src/libcore/finally.rs:114
<http://finally.rs:114> dtor: |&mut A|: 'a
/home/nodakai/src/rust-HEAD/src/libcore/finally.rs:115
<http://finally.rs:115> }
/home/nodakai/src/rust-HEAD/src/libcore/finally.rs:112:1: 115:2
note: ...so that the reference type `&'a mut A` does not outlive
the data it points at
/home/nodakai/src/rust-HEAD/src/libcore/finally.rs:112
<http://finally.rs:112> struct Finallyalizer<'a,A> {
/home/nodakai/src/rust-HEAD/src/libcore/finally.rs:113
<http://finally.rs:113> mutate: &'a mut A,
/home/nodakai/src/rust-HEAD/src/libcore/finally.rs:114
<http://finally.rs:114> dtor: |&mut A|: 'a
/home/nodakai/src/rust-HEAD/src/libcore/finally.rs:115
<http://finally.rs:115> }
/home/nodakai/src/rust-HEAD/src/libcore/iter.rs:788:1: 790:2
error: the parameter type `T` may not live long enough; consider
adding an explicit lifetime bound `T:'a`...
/home/nodakai/src/rust-HEAD/src/libcore/iter.rs:788
<http://iter.rs:788> pub struct ByRef<'a, T> {
/home/nodakai/src/rust-HEAD/src/libcore/iter.rs:789
<http://iter.rs:789> iter: &'a mut T
/home/nodakai/src/rust-HEAD/src/libcore/iter.rs:790
<http://iter.rs:790> }
/home/nodakai/src/rust-HEAD/src/libcore/iter.rs:788:1: 790:2
note: ...so that the reference type `&'a mut T` does not outlive
the data it points at
/home/nodakai/src/rust-HEAD/src/libcore/iter.rs:788
<http://iter.rs:788> pub struct ByRef<'a, T> {
/home/nodakai/src/rust-HEAD/src/libcore/iter.rs:789
<http://iter.rs:789> iter: &'a mut T
/home/nodakai/src/rust-HEAD/src/libcore/iter.rs:790
<http://iter.rs:790> }
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1138:1: 1142:2
error: the parameter type `T` may not live long enough; consider
adding an explicit lifetime bound `T:'a`...
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1138
<http://slice.rs:1138> pub struct Splits<'a, T> {
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1139
<http://slice.rs:1139> v: &'a [T],
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1140
<http://slice.rs:1140> pred: |t: &T|: 'a -> bool,
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1141
<http://slice.rs:1141> finished: bool
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1142
<http://slice.rs:1142> }
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1138:1: 1142:2
note: ...so that the reference type `&'a [T]` does not outlive
the data it points at
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1138
<http://slice.rs:1138> pub struct Splits<'a, T> {
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1139
<http://slice.rs:1139> v: &'a [T],
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1140
<http://slice.rs:1140> pred: |t: &T|: 'a -> bool,
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1141
<http://slice.rs:1141> finished: bool
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1142
<http://slice.rs:1142> }
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1205:1: 1209:2
error: the parameter type `T` may not live long enough; consider
adding an explicit lifetime bound `T:'a`...
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1205
<http://slice.rs:1205> pub struct MutSplits<'a, T> {
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1206
<http://slice.rs:1206> v: &'a mut [T],
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1207
<http://slice.rs:1207> pred: |t: &T|: 'a -> bool,
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1208
<http://slice.rs:1208> finished: bool
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1209
<http://slice.rs:1209> }
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1205:1: 1209:2
note: ...so that the reference type `&'a mut [T]` does not
outlive the data it points at
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1205
<http://slice.rs:1205> pub struct MutSplits<'a, T> {
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1206
<http://slice.rs:1206> v: &'a mut [T],
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1207
<http://slice.rs:1207> pred: |t: &T|: 'a -> bool,
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1208
<http://slice.rs:1208> finished: bool
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1209
<http://slice.rs:1209> }
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1321:1: 1324:2
error: the parameter type `T` may not live long enough; consider
adding an explicit lifetime bound `T:'a`...
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1321
<http://slice.rs:1321> pub struct Windows<'a, T> {
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1322
<http://slice.rs:1322> v: &'a [T],
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1323
<http://slice.rs:1323> size: uint
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1324
<http://slice.rs:1324> }
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1321:1: 1324:2
note: ...so that the reference type `&'a [T]` does not outlive
the data it points at
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1321
<http://slice.rs:1321> pub struct Windows<'a, T> {
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1322
<http://slice.rs:1322> v: &'a [T],
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1323
<http://slice.rs:1323> size: uint
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1324
<http://slice.rs:1324> }
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1367:1: 1370:2
error: the parameter type `T` may not live long enough; consider
adding an explicit lifetime bound `T:'a`...
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1367
<http://slice.rs:1367> pub struct Chunks<'a, T> {
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1368
<http://slice.rs:1368> v: &'a [T],
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1369
<http://slice.rs:1369> size: uint
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1370
<http://slice.rs:1370> }
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1367:1: 1370:2
note: ...so that the reference type `&'a [T]` does not outlive
the data it points at
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1367
<http://slice.rs:1367> pub struct Chunks<'a, T> {
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1368
<http://slice.rs:1368> v: &'a [T],
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1369
<http://slice.rs:1369> size: uint
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1370
<http://slice.rs:1370> }
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1459:1: 1462:2
error: the parameter type `T` may not live long enough; consider
adding an explicit lifetime bound `T:'a`...
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1459
<http://slice.rs:1459> pub struct MutChunks<'a, T> {
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1460
<http://slice.rs:1460> v: &'a mut [T],
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1461
<http://slice.rs:1461> chunk_size: uint
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1462
<http://slice.rs:1462> }
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1459:1: 1462:2
note: ...so that the reference type `&'a mut [T]` does not
outlive the data it points at
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1459
<http://slice.rs:1459> pub struct MutChunks<'a, T> {
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1460
<http://slice.rs:1460> v: &'a mut [T],
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1461
<http://slice.rs:1461> chunk_size: uint
/home/nodakai/src/rust-HEAD/src/libcore/slice.rs:1462
<http://slice.rs:1462> }
error: aborting due to 9 previous errors
make: ***
[x86_64-unknown-linux-gnu/stage0/lib/rustlib/x86_64-unknown-linux-gnu/lib/stamp.core]
Error 101
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_______________________________________________
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