…calebcartwright

Sync rustfmt subtree

There's a large number of small fixes and new features, but nothing too big. Detailed changelog for those interested can be found in https://github.com/rust-lang/rustfmt/blob/master/CHANGELOG.md#1438-2021-10-20

Rollup of 15 pull requests

Successful merges:

 - rust-lang#86984 (Reject octal zeros in IPv4 addresses)
 - rust-lang#87440 (Remove unnecessary condition in Barrier::wait())
 - rust-lang#88644 (`AbstractConst` private fields)
 - rust-lang#89292 (Stabilize CString::from_vec_with_nul[_unchecked])
 - rust-lang#90010 (Avoid overflow in `VecDeque::with_capacity_in()`.)
 - rust-lang#90029 (Add test for debug logging during incremental compilation)
 - rust-lang#90031 (config: add the option to enable LLVM tests)
 - rust-lang#90048 (Add test for line-number setting)
 - rust-lang#90071 (Remove hir::map::blocks and use FnKind instead)
 - rust-lang#90074 (2229 migrations small cleanup)
 - rust-lang#90077 (Make `From` impls of NonZero integer const.)
 - rust-lang#90087 (Sync rustfmt subtree)
 - rust-lang#90097 (Add test for duplicated sidebar entries for reexported macro)
 - rust-lang#90098 (Add test to ensure that the missing_doc_code_examples is not triggered on foreign trait implementations)
 - rust-lang#90099 (Fix MIRI UB in `Vec::swap_remove`)

Failed merges:

r? `@ghost`
`@rustbot` modify labels: rollup

…calebcartwright

Sync rustfmt subtree

There's a large number of small fixes and new features, but nothing too big. Detailed changelog for those interested can be found in https://github.com/rust-lang/rustfmt/blob/master/CHANGELOG.md#1438-2021-10-20

…askrgr

Rollup of 10 pull requests

Successful merges:

 - rust-lang#83233 (Implement split_array and split_array_mut)
 - rust-lang#88300 (Stabilise unix_process_wait_more, extra ExitStatusExt methods)
 - rust-lang#88728 (Added next_up and next_down for f32/f64.)
 - rust-lang#89316 (Add support for specifying multiple clobber_abi in `asm!`)
 - rust-lang#89730 (add feature flag for `type_changing_struct_update`)
 - rust-lang#89920 (Implement -Z location-detail flag)
 - rust-lang#90070 (Add edition configuration to compiletest)
 - rust-lang#90087 (Sync rustfmt subtree)
 - rust-lang#90117 (Make RSplit<T, P>: Clone not require T: Clone)
 - rust-lang#90166 (Add comment documenting why we can't use a simpler solution)

Failed merges:

r? `@ghost`
`@rustbot` modify labels: rollup

…calebcartwright

Sync rustfmt subtree

There's a large number of small fixes and new features, but nothing too big. Detailed changelog for those interested can be found in https://github.com/rust-lang/rustfmt/blob/master/CHANGELOG.md#1438-2021-10-20

…askrgr

Rollup of 9 pull requests

Successful merges:

 - rust-lang#83233 (Implement split_array and split_array_mut)
 - rust-lang#88300 (Stabilise unix_process_wait_more, extra ExitStatusExt methods)
 - rust-lang#88728 (Added next_up and next_down for f32/f64.)
 - rust-lang#89730 (add feature flag for `type_changing_struct_update`)
 - rust-lang#89920 (Implement -Z location-detail flag)
 - rust-lang#90070 (Add edition configuration to compiletest)
 - rust-lang#90087 (Sync rustfmt subtree)
 - rust-lang#90117 (Make RSplit<T, P>: Clone not require T: Clone)
 - rust-lang#90166 (Add comment documenting why we can't use a simpler solution)

Failed merges:

r? `@ghost`
`@rustbot` modify labels: rollup

…askrgr

Rollup of 11 pull requests

Successful merges:

 - rust-lang#83233 (Implement split_array and split_array_mut)
 - rust-lang#88300 (Stabilise unix_process_wait_more, extra ExitStatusExt methods)
 - rust-lang#89416 (nice_region_error: Include lifetime placeholders in error output)
 - rust-lang#89468 (Report fatal lexer errors in `--cfg` command line arguments)
 - rust-lang#89730 (add feature flag for `type_changing_struct_update`)
 - rust-lang#89920 (Implement -Z location-detail flag)
 - rust-lang#90070 (Add edition configuration to compiletest)
 - rust-lang#90087 (Sync rustfmt subtree)
 - rust-lang#90117 (Make RSplit<T, P>: Clone not require T: Clone)
 - rust-lang#90122 (CI: make docker cache download and `docker load` time out after 10 minutes)
 - rust-lang#90166 (Add comment documenting why we can't use a simpler solution)

Failed merges:

r? `@ghost`
`@rustbot` modify labels: rollup

Resolves 5038

rust-lang/rust builds now document rustfmt (rust-lang/rust#87119). The
build process is updated with doc checks to ensure that rustfmt doesn't
introduce warnings.

Warnings are treated as hard errors in rust-lang/rust and won't show
until bors tests the changes (refs rust-lang/rust#90087).