Update to latest nightly

[oli-obk]

fixes #1714

needs to wait for the next nightly

[ishitatsuyuki]

I'm quite sure that today's nightly is ready, please merge.

[ishitatsuyuki]

New failure:

error[E0106]: missing lifetime specifier
   --> clippy_lints/src/loops.rs:875:35
    |
875 |     indexed: HashMap<Name, Option<CodeExtent>>, // indexed variables, the extent is None for global
    |                                   ^^^^^^^^^^ expected lifetime parameter

[oli-obk]

Already on it :) mostly caused by rust-lang/rust#41662

[oli-obk]

My suggestion changes made some of our suggestions ugly. I fixed some, but there are others left. I plan to improve this by both changes in rustc and in clippy.

[ishitatsuyuki]

Build looks good. Looking forward to be merged.

[ishitatsuyuki]

By the way, here's a recommendation: do the work on master branch, tag it once nightly is released.

[ishitatsuyuki]

The cache seems to be ****ed up. Maybe something done wrong in CI configuration?