bors abbdec3be6 Auto merge of #77792 - matthewjasper:instrument-trait-selection, r=oli-obk ...

Use tracing spans in rustc_trait_selection

Spans are very helpful when debugging this code. It's also hot enough to make a good benchmark.

r? `@oli-obk`

2020-10-12 23:04:55 +00:00

..

src

Auto merge of #77792 - matthewjasper:instrument-trait-selection, r=oli-obk

2020-10-12 23:04:55 +00:00

Cargo.toml

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