tree 508724aea99f3c443aed9c3adf3cb882d8477314
parent 5424c1d57c0b0ad85723a6f26f29bda3a17f2fa0
author Rob Tsuk <robtsuk@google.com> 1504295333 -0700
committer Rob Tsuk <robtsuk@google.com> 1504295337 -0700

Stop using the toolchain rustc

We don’t need to, and it was causing problems with cargo doc.

Also upgrade error-chain to suppress the doc comment warning.

Also fix everything clippy complained about.

Change-Id: I758e14b25bbf0bcd8f37bb4761f87748e0f2ab5d