appveyor: Turn down sccache logging

alexcrichton · alexcrichton · commit f27bd73fd271 · 2017-03-13T12:47:37.000-07:00
Let's not have it be quite so verbose
diff --git a/appveyor.yml b/appveyor.yml
@@ -131,7 +131,7 @@ install:
   - handle.exe -accepteula -help
 
   # Attempt to debug sccache failures
-  - set RUST_LOG=sccache
+  - set RUST_LOG=sccache=debug
   - set SCCACHE_ERROR_LOG=%CD%/sccache.log
 
 test_script:
