Auto merge of #142665 - Kobzol:rollup-3x1yh6c, r=Kobzol

Rollup of 12 pull requests

Successful merges:

 - #135656 (Add `-Z hint-mostly-unused` to tell rustc that most of a crate will go unused)
 - #140774 (Affirm `-Cforce-frame-pointers=off` does not override)
 - #141610 (Stabilize `feature(generic_arg_infer)`)
 - #142123 (Implement initial support for timing sections (`--json=timings`))
 - #142383 (CodeGen: rework Aggregate implemention for rvalue_creates_operand cases)
 - #142502 (rustdoc_json: improve handling of generic args)
 - #142591 (Add spawn APIs for BootstrapCommand to support deferred command execution)
 - #142606 (AsyncDrop trait without sync Drop generates an error)
 - #142619 (apply clippy::or_fun_call)
 - #142624 (Actually take `--build` into account in bootstrap)
 - #142627 (Add `StepMetadata` to describe steps)
 - #142660 (remove joboet from review rotation)

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

Author: bors

Cargo.lock

@@ -3474,11 +3474,9 @@ name = "rustc_codegen_ssa"
 version = "0.0.0"
 dependencies = [
  "ar_archive_writer",
- "arrayvec",
  "bitflags",
  "bstr",
  "cc",
- "either",
  "itertools",
  "libc",
  "object 0.37.0",

compiler/rustc_ast_lowering/messages.ftl

@@ -172,9 +172,6 @@ ast_lowering_template_modifier = template modifier
 
 ast_lowering_this_not_async = this is not `async`
 
-ast_lowering_underscore_array_length_unstable =
-    using `_` for array lengths is unstable
-
 ast_lowering_underscore_expr_lhs_assign =
     in expressions, `_` can only be used on the left-hand side of an assignment
     .label = `_` not allowed here