Regression report stable-2016-12-21 vs. nightly-2016-12-29

unnecessary qualification lint - nalgebra, libimagestore, rust_sodium, slack-hook, collenchyma-blas, cudnn, kvm, cuticula, cargo count, cargo graph

This is #38682, fixed in #38817.

macro already defined in this module - aws-sdk-rust. what's this?

This is #38715, fixed in #38793

unused import - perlin. what changed here?

This was caused by stabilizing RFC 1560 in #37127, specifically allowing globs to import everything visible, not just everything pub.