Fix some tests with output collisions. #10137
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Update cargo 6 commits in 7f08ace4f1305de7f3b1b0e2f765911957226bd4..294967c53f0c70d598fc54ca189313c86c576ea7 2021-11-24 17:54:39 +0000 to 2021-11-29 19:04:22 +0000 - Fix some tests with output collisions. (rust-lang/cargo#10137) - Description of the targets that can be applied (rust-lang/cargo#10109) - Improve unused patch message when source URLs mismatched (rust-lang/cargo#10130) - Add a note about doctest xcompile. (rust-lang/cargo#10132) - book: add edit links to specific pages (rust-lang/cargo#10124) - Add crate type flag to rustc command (rust-lang/cargo#10093)
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This fixes some tests which run afoul of creating colliding outputs (tracked in #6313). In particular, these tests are creating duplicate pdb files on Windows because they have a binary and a library (dylib) with the same name. This is causing significant issues on rust-lang's CI (rust-lang/rust#81890) where the MSVC linker is failing with a mysterious LNK1201 error. Presumably two LINK.exe processes are trying to write to the same PDB file at the same time, which causes it to fail.
Ideally this shouldn't happen, but I don't really have any ideas on how to resolve it, as the name of the PDB has some importance.
I have not been able to reproduce the LNK1201 error. My hope is that this change will help alleviate the issue, though.
I updated the
doc_all_member_dependency_same_nametest to illustrate that it is hitting a collision, which is a fundamental part of that test (and something we should probably figure out how to resolve in the future).