CI Windows

Use `import std;` guarded by macro #1138

Sign in to view logs

Run time

Learn about OS pricing on GitHub Actions

Job	Run time
build (windows-latest, x86)	6m 10s
build (windows-latest, x64)	5m 55s
build (windows-2019, x86)	6m 8s
build (windows-2019, x64)	6m 6s
	24m 19s