Merge branch 'clippy-and-fmt' into 'master'

build.rs

members/braces/src/lib.rs

members/builtins/src/conditionals.rs

members/builtins/src/echo.rs

members/builtins/src/random.rs

members/builtins/src/test.rs

members/lexers/src/arguments.rs

members/lexers/src/assignments/keys.rs

members/lexers/src/assignments/mod.rs

members/lexers/src/assignments/primitive.rs

members/lexers/src/designators.rs

members/ranges/src/index.rs

members/ranges/src/lib.rs

members/ranges/src/parse.rs

members/ranges/src/range.rs

members/ranges/src/select.rs

members/sys/src/sys/redox/mod.rs

members/sys/src/sys/unix/mod.rs

members/sys/src/sys/unix/signals.rs

rustfmt.toml