Rollup of 11 pull requests#81733

Closed

Dylan-DPC-zz wants to merge 31 commits intorust-lang:masterfrom

Dylan-DPC-zz:rollup-wvv4o15

Commits on Jan 27, 2021

Don't build remote-test-server with the stage0 toolchain

Amanieu d'Antras
authored and
Amanieu
committed
Preserve existing LD_LIBRARY_PATH in remote-test-server

Amanieu d'Antras
authored and
Amanieu
committed

Commits on Jan 28, 2021

Fix rustc sysroot in systems using CAS
rcvalle
committed

Commits on Jan 30, 2021

Expose correct symlink API on WASI
RReverser
committed

Commits on Feb 2, 2021

Commits on Feb 3, 2021