…tains

This helper method works for all types, falling back to a query for
`TyKind::Adt`s to determine whether the implement the
`{Partial,}StructuralEq` traits.

Previously, some doctests were spawning new threads and joining them to
indicate that a particular call should panic; this hurt readability, so
the tests have been adjusted to simply call the method and use the
`should_panic` marker.

…iour, r=hanna-kruppe

Clarify the behaviour of Pattern when used with methods like str::contains

Fixes rust-lang#45507.

I used the previous work by @Emerentius (thanks !), added a paragraph and checked the links (they work for me but I'm not against someone else checking them too).

…, r=pnkfelix

Querify whether a type has structural equality (Take 2)

Alternative to rust-lang#72177.

Unlike in rust-lang#72177, this helper method works for all types, falling back to a query for `TyKind::Adt`s that determines whether the `{Partial,}StructuralEq` traits are implemented.

This is my preferred interface for this method. I think this is better than just documenting that the helper only works for ADTs. If others disagree, we can just merge rust-lang#72177 with the fixes applied. This has already taken far too long.

Prefer the associated constants for pattern matching error

Resolved this comment: rust-lang#68490 (comment)

…=petrochenkov

Add/update comments about MinGW late_link_args

…Simulacrum

Use the built cargo for cargotest.

cargotest was using the beta (bootstrap) cargo. This changes it so that it will use the locally built cargo. This is intended to provide a sort of smoke test to ensure Cargo is functional. This *shouldn't* have any real impact on the CI build time.  The cargotest job also happens to run cargo's testsuite, so it should already be building cargo.

Note: This will fail until rust-lang#73266 is merged.

Fix links when pinging notification groups

I think a blank line is necessary for the link to be applied.
Not sure who to assign, r? @Dylan-DPC

…on, r=Mark-Simulacrum

Adjusted some doctests in libcore to use `should_panic`.

Fixes rust-lang#73196 .

I grepped libstd and libcore for all the instances of this pattern that I could find, but its possible that I missed some of course. If anyone knows of any more, please let me know and I will add them to the PR.

…rch64, r=Amanieu

pretty/asm.rs should only be tested for x86_64 and not AArch64

pretty/asm.rs should only be tested for x86_64 and not AArch64
closes rust-lang#73134
r?  @Amanieu