Update toolchain nightly-2026-03-14#545

Open

LegNeato wants to merge 43 commits intomainfrom

pr-542-latest-nightly-refresh

Commits on Mar 11, 2026

Commits on Mar 19, 2026

Remove duplicate PassMode::Direct check
LegNeato
committed

Commits on Mar 22, 2026

compiletests: cover invalid runtime-array const bitcasts
LegNeato
committed

Commits on Mar 23, 2026

consts: remove dead runtime-array const bitcast fallback
LegNeato
committed

Commits on Mar 24, 2026

std: remove unused features rustc warns about
Firestar99
committed

Commits on Mar 25, 2026