Auto merge of #4676 - mgeisler:ci-caching, r=alexcrichton
authorbors <bors@rust-lang.org>
Tue, 31 Oct 2017 00:48:46 +0000 (00:48 +0000)
committerbors <bors@rust-lang.org>
Tue, 31 Oct 2017 00:48:46 +0000 (00:48 +0000)
commit7c33b5c146f4338e82ce4cc4681b6e45ab09288b
treec37bd7781c6296cfa7ff61c63dabf5b4e96d02c6
parentf4aeb00ecf1151904dfa54bf8d4c928ef6b9c463
parentd70a3b1ec21a32f7fbf0881fe4a9d87345e675b3
Auto merge of #4676 - mgeisler:ci-caching, r=alexcrichton

Explain why caching is only done on $HOME/.cargo/bin/ in Travis

After having experimented with the Travis and AppVeyor caches, I concluded that they don't really help here: they're large and take a very long time to both download when the build starts and upload after it is finished.
.travis.yml