submodules: update clippy from d8e6e4cf to 1ff81c1b

Changes:
````
rustup https://github.com/rust-lang/rust/pull/69968/
Fix documentation generation for configurable lints
Fix single binding in closure
Improvement: Don't show function body in needless_lifetimes
````
This commit is contained in:
Matthias Krüger 2020-03-23 16:46:46 +01:00
parent 5aa8f199c3
commit 454ba778d4

@ -1 +1 @@
Subproject commit d8e6e4cfcd83d555bd7717ea24224b777ed75773
Subproject commit 1ff81c1b6d7abdcc9ee47f4a8ab175082cad4421