Add the from_str_radix_10 lint
changelog: added the new `from_str_radix_10` which sometimes replaces calls to `primitive::from_str_radix` to `str::parse`
This is ready to be merged, although maybe the category should be `pedantic` instead of `style`? I'm not sure where it fits better.
Closes#6713.
simplify eat_digits
Simplify eat_digits by checking values in iterator, plus decrease function size, by returning unchecked slices.
https://godbolt.org/z/cxjav4
Add Sized trait display when implemented on type
Fixes https://github.com/rust-lang/rust/issues/24183.
I'm not too happy about the hack I had to add in here, however, it seems like the `Sized` trait is **very** special.
cc `@jyn514`
r? `@ollie27`
collapsible_match: fix lint message capitalization
(see https://rustc-dev-guide.rust-lang.org/diagnostics.html for details)
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*Please write a short comment explaining your change (or "none" for internal only changes)*
changelog: collapsible_match: fix lint message capitalization
lintcheck: parallelize
By default we use a single thread and one target dir as before.
If `-j n` is passed, use `n` target dirs and run one clippy in each of them.
We need several target dirs because cargo would lock them for a single process otherwise which would prevent the parallelism.
`-j 0` makes rayon use $thread_count/2 (which I assume is the number of physical cores of a machine) for the number of threads.
Other change:
Show output of clippy being compiled when building it for lintcheck (makes it easier to spot compiler errors etc)
Show some progress indication in the "Linting... foo 1.2.3" message.
Sort crates before linting (previously crates would be split randomly between target dirs, with the sorting, we try to make sure that even crates land in target dir 0 and odd ones in target dir 1 etc..)
*Please write a short comment explaining your change (or "none" for internal only changes)*
changelog: parallelize lintcheck with rayon
