sccache integration not resulting in any cache hits

[mqudsi]

Running the latest rust/cargo and sccache, with RUSTC_WRAPPER set correctly, sccache is invoked but does not seem to ever cache anything.

Originally being tracked here: #4307 (comment)

sccache.txt

[mqudsi]

cc @luser and thank you

[luser]

That log says it's running sccache 0.2.1, which is missing this fix: mozilla/sccache@2d9bdc1 , which definitely was an issue on some platforms.

Is this just the build log from setting RUST_LOG=sccache=trace? To get the log output from the server you also need to set SCCACHE_ERROR_LOG=/path/to/log.

[Eh2406]

Is this fixed? Can this be closed?

[alexcrichton]

Sounds good to me!