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authorCorey Farwell <coreyf@rwell.org>2017-04-07 09:20:07 -0400
committerGitHub <noreply@github.com>2017-04-07 09:20:07 -0400
commita2c032631b8e9b7023502bd0210b97bf1661d9ba (patch)
tree4b1cb708390d5d0c51e465259dd40aa238c0c5fe /src/test/run-pass/thinlto
parent996f06fe3597eeb2c671a34cf16d2b29aec961e7 (diff)
parentb970bc2a79719b5c1573fb87c96773ce131dbb8d (diff)
downloadrust-a2c032631b8e9b7023502bd0210b97bf1661d9ba.tar.gz
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Rollup merge of #41075 - aidanhs:aphs-enable-appveyor-cache, r=alexcrichton
Re-enable appveyor cache

After breaking the queue last time, I'm cautiously back with a PR to re-enable caching on appveyor.

If you look at https://ci.appveyor.com/project/rust-lang/rust/build/1.0.2623/job/46o90by4ari6gege (one of the multiple runs that started failed, there are actually two errors - one for restoring the cache, one right at the bottom for creating a directory. I only noticed the restore error at the time as I was a bit rushed to revert and didn't stop to wonder why it continued - turns out appveyor [does not abort on cache restore failure](https://github.com/appveyor/ci/issues/723).

Turns out the cause of the build failures was the cache directory existing and me being thinking that because mkdir on windows is [recursive by default](http://stackoverflow.com/a/905239/2352259), it ignores the error if the directory already exists. Apparently this is not true, so now it checks if the directory exists before attempting to create.

In addition, I've added some more paranoia to double check everything is sane.
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