Rollup of 5 pull requests#73376

Closed

Dylan-DPC-zz wants to merge 13 commits into

rust-lang:masterfrom

Dylan-DPC-zz:rollup-1ss9rdg

Commits on May 26, 2020

Add tests for 'impl Default for [T; N]'
MikailBag
committed

Commits on May 28, 2020

Skip leak test on targets without panic=unwind
MikailBag
committed

Commits on Jun 6, 2020

Fix link error with #[thread_local] introduced by #71192
Amanieu
committed

Commits on Jun 8, 2020

Ensure std benchmarks get tested.
ehuss
committed

Commits on Jun 10, 2020

Add -O compile flag to test
Amanieu
committed

Commits on Jun 13, 2020

Commits on Jun 15, 2020