report_similar_impl_candidates seems to not put things in a canonical order #53302
Labels
A-diagnostics
Area: Messages for errors, warnings, and lints
E-easy
Call for participation: Easy difficulty. Experience needed to fix: Not much. Good first issue.
I hit the following UI test failure in travis today:
https://travis-ci.org/rust-lang/rust/jobs/415272826#L1942-L1958
Despite being fully-up-to-date against master and that passing locally.
Perhaps the order is deterministic normally, but different for me because I built
--incremental
?I figured it was worth filing, at least, as I can't see any obvious sort in the relevant code:
rust/src/librustc/traits/error_reporting.rs
Lines 407 to 470 in 5a0d296
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