[staging] 'librsvg-next' build failure

DoneSubmitted by Marius Bakke.
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3 participants
  • Efraim Flashner
  • Jakub Kądziołka
  • Marius Bakke
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unassigned
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normal
M
M
Marius Bakke wrote on 29 May 2020 15:17
(address . bug-guix@gnu.org)
87r1v2518g.fsf@gnu.org
On the 'staging' branch, "librsvg-next" (a dependency of GNOME) fails to
compile the 'xml-rs' Rust crate:

Toggle snippet (27 lines)
Compiling xml-rs v0.8.1
error[E0658]: `cfg(doctest)` is experimental and subject to change
--> /tmp/guix-build-librsvg-2.46.4.drv-0/librsvg-2.46.4/vendor/rust-xml-rs-0.8.1.tar.gz/src/lib.rs:9:7
|
9 | #[cfg(doctest)]
| ^^^^^^^
|
= note: for more information, see https://github.com/rust-lang/rust/issues/62210

error[E0658]: `cfg(doctest)` is experimental and subject to change
--> /tmp/guix-build-librsvg-2.46.4.drv-0/librsvg-2.46.4/vendor/rust-xml-rs-0.8.1.tar.gz/src/lib.rs:13:7
|
13 | #[cfg(doctest)]
| ^^^^^^^
|
= note: for more information, see https://github.com/rust-lang/rust/issues/62210

Compiling downcast-rs v1.1.1
Compiling rand_core v0.3.1
Compiling rand_jitter v0.1.4
error: aborting due to 2 previous errors

For more information about this error, try `rustc --explain E0658`.
error: could not compile `xml-rs`.
warning: build failed, waiting for other jobs to finish...
error: build failed
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J
J
Jakub Kądziołka wrote on 29 May 2020 15:37
(name . Marius Bakke)(address . marius@gnu.org)(address . bug-guix@gnu.org)
20200529133735.3gn7e3as3r3lg4wb@gravity
On Fri, May 29, 2020 at 03:17:51PM +0200, Marius Bakke wrote:
Toggle quote (13 lines)
> On the 'staging' branch, "librsvg-next" (a dependency of GNOME) fails to
> compile the 'xml-rs' Rust crate:
>
> --8<---------------cut here---------------start------------->8---
> Compiling xml-rs v0.8.1
> error[E0658]: `cfg(doctest)` is experimental and subject to change
> --> /tmp/guix-build-librsvg-2.46.4.drv-0/librsvg-2.46.4/vendor/rust-xml-rs-0.8.1.tar.gz/src/lib.rs:9:7
> |
> 9 | #[cfg(doctest)]
> | ^^^^^^^
> |
> = note: for more information, see https://github.com/rust-lang/rust/issues/62210

That's a feature that was stabilized in Rust 1.40. I have a WIP patch
that updates Rust upto 1.43.1, but it's blocked on a LLVM 9 patch backport I
haven't had time to prepare yet. I won't have the time to look into it
properly right now, but here are the relevant links:


Regards,
Jakub Kądziołka
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E
E
Efraim Flashner wrote on 30 May 2020 22:23
Re: bug#41596: [staging] 'librsvg-next' build failure
(name . Jakub Kądziołka)(address . kuba@kadziolka.net)
20200530202303.GB7397@E5400
On Fri, May 29, 2020 at 03:37:36PM +0200, Jakub Kądziołka wrote:
Toggle quote (26 lines)
> On Fri, May 29, 2020 at 03:17:51PM +0200, Marius Bakke wrote:
> > On the 'staging' branch, "librsvg-next" (a dependency of GNOME) fails to
> > compile the 'xml-rs' Rust crate:
> >
> > --8<---------------cut here---------------start------------->8---
> > Compiling xml-rs v0.8.1
> > error[E0658]: `cfg(doctest)` is experimental and subject to change
> > --> /tmp/guix-build-librsvg-2.46.4.drv-0/librsvg-2.46.4/vendor/rust-xml-rs-0.8.1.tar.gz/src/lib.rs:9:7
> > |
> > 9 | #[cfg(doctest)]
> > | ^^^^^^^
> > |
> > = note: for more information, see https://github.com/rust-lang/rust/issues/62210
>
> That's a feature that was stabilized in Rust 1.40. I have a WIP patch
> that updates Rust upto 1.43.1, but it's blocked on a LLVM 9 patch backport I
> haven't had time to prepare yet. I won't have the time to look into it
> properly right now, but here are the relevant links:
>
> https://github.com/rust-lang/llvm-project/commit/7d5e7c023053660ffe494d72ce471e48ecc7f49b
> https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=959877
> https://github.com/rust-lang/llvm-project/pull/43
>
> Regards,
> Jakub Kądziołka

In any case, I worked around the issue by changing the doctest
declarations into test declarations. I also bumped rust-xml-rs-0.8 to
0.8.3.


--
Efraim Flashner <efraim@flashner.co.il> אפרים פלשנר
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