perf: Buffer stderr when writing json errors/warnings#69227

Merged

bors merged 2 commits intorust-lang:masterfrom

Marwes:buffer_stderr

Feb 29, 2020

Commits on Feb 17, 2020

perf: Buffer stderr when writing json errors/warnings
Markus Westerlind
committed
Ensure diagnostics are printed in the correct order
Markus Westerlind
committed