Rollup of 4 pull requests#114272

Merged

bors merged 9 commits intorust-lang:masterfrom

workingjubilee:rollup-ll9lwon

Jul 31, 2023

Commits on Apr 27, 2023

std: use `LazyLock` to lazily resolve backtraces
joboet
committed

Commits on Jul 26, 2023

std: add auto traits to TAIT bound
joboet
committed

Commits on Jul 30, 2023