Re: Buildbot failure in Wildebeest Builder on whole buildset

[Mark Wielaard <mark@klomp.org>]

Hi,

On Sun, Aug 22, 2021 at 03:55:47PM +0000, buildbot@builder.wildebeest.org wrote:
> The Buildbot has detected a new failure on builder gccrust-debian-arm64 while building gccrust.
> Full details are available at:
>     https://builder.wildebeest.org/buildbot/#builders/58/builds/355

This seems to have been a transient build failure caused by:

commit d5dd96322b588ffcf5bdd2fe0e3a14eb217d75b2
Author: Philip Herron <philip.herron@embecosm.com>
Date:   Sun Aug 22 13:42:14 2021 +0100

    Add Trait Resolver simple type-path lookup
    
    Post type checking we need to be able to lookup trait references, but do
    not need to resolve the trait with error messages. We simple want to look
    it up if it exists.

../../gccrs/gcc/rust/typecheck/rust-hir-trait-resolve.cc:233:1: error: ‘PathProbeImplTrait’ has not been declared
 PathProbeImplTrait::process_trait_impl_items_for_candidates ()
 ^~~~~~~~~~~~~~~~~~
../../gccrs/gcc/rust/typecheck/rust-hir-trait-resolve.cc: In function ‘void Rust::Resolver::process_trait_impl_items_for_candidates()’:
../../gccrs/gcc/rust/typecheck/rust-hir-trait-resolve.cc:235:3: error: ‘mappings’ was not declared in this scope
   mappings->iterate_impl_items (
   ^~~~~~~~
../../gccrs/gcc/rust/typecheck/rust-hir-trait-resolve.cc:235:3: note: suggested alternative: ‘warning’
   mappings->iterate_impl_items (
   ^~~~~~~~
   warning
../../gccrs/gcc/rust/typecheck/rust-hir-trait-resolve.cc: In lambda function:
../../gccrs/gcc/rust/typecheck/rust-hir-trait-resolve.cc:244:12: error: ‘trait_reference’ was not declared in this scope
       if (!trait_reference->is_equal (*resolved))
            ^~~~~~~~~~~~~~~
../../gccrs/gcc/rust/typecheck/rust-hir-trait-resolve.cc:244:12: note: suggested alternative: ‘TraitReference’
       if (!trait_reference->is_equal (*resolved))
            ^~~~~~~~~~~~~~~
            TraitReference
../../gccrs/gcc/rust/typecheck/rust-hir-trait-resolve.cc:247:7: error: ‘process_impl_item_candidate’ was not declared in this scope
       process_impl_item_candidate (id, item, impl);
       ^~~~~~~~~~~~~~~~~~~~~~~~~~~
../../gccrs/gcc/rust/typecheck/rust-hir-trait-resolve.cc:247:7: note: suggested alternative: ‘process_trait_impl_items_for_candidates’
       process_impl_item_candidate (id, item, impl);
       ^~~~~~~~~~~~~~~~~~~~~~~~~~~
       process_trait_impl_items_for_candidates
make[2]: *** [../../gccrs/gcc/rust/Make-lang.in:301: rust/rust-hir-trait-resolve.o] Error 1

But resolved by the next commit:

commit a6c8bd136dd4e89752eaec6415ba651f3cd73b9e
Author: Philip Herron <philip.herron@embecosm.com>
Date:   Sun Aug 22 13:44:46 2021 +0100

    Add impl-trait path probe helper
    
    This adds a probe to lookup candidates for a segment for any impl block
    for this receiver and trait. This simplifies some query based compilation
    code. When the item is resolved to a trait item but might be overriden by
    a reciever impl block instead.

Not all buildbot workers have finished building all the latest commits though.

Cheers,

Mark