When docker-podman compat was set up in a way that causes "docker"
to be the argv[0] of podman, the previous detection did not work.
This was for example the case in the compat package from nixpkgs.

This checks the output and should work everywhere.

Fix rust-lang#78206.

…=lcnr

Don't ICE when encountering unresolved regions in `fully_resolve`

We can encounter unresolved regions due to unconstrained impl lifetime arguments because `collect_return_position_impl_trait_in_trait_tys` runs before WF actually checks that the impl is well-formed.

Fixes rust-lang#116525

Fix podman detection in CI scripts

When docker-podman compat was set up in a way that causes "docker" to be the argv[0] of podman, the previous detection did not work. This was for example the case in the compat package from nixpkgs.

This checks the output and should work everywhere.

I tested it locally by executing
```sh
if [[ "$id" != 0 && "$(docker version)" =~ Podman ]]; then
    echo yes
else
    echo no
fi
```
which printed `no` before, and `yes` now.

fixes rust-lang#113129

r? cuviper

…uviper

Add `#[track_caller]` to `Option::unwrap_or_else`

Same as rust-lang#116317 but for `Option`.

Closes rust-lang#115302

Make `#[repr(Rust)]` incompatible with other (non-modifier) representation hints like `C` and `simd`

Read more about this change here: rust-lang#116829 (comment).

Fixes [after backport] rust-lang#116825.

Change my name in mailmap

I changed some things about my distro (my GPG key, along with the git username). This PR sets my committer name as `blyxyas` for those commits so that it is the same as my reviewer name in `thanks`.

…rrors

Tweak wording of type errors involving type params

Fix rust-lang#78206.

…shedding, r=jackh726

Some renaming nits for `rustc_type_ir`

tl;dr:
* `ListTy` -> `Tys`
* `PlaceholderType` -> `PlaceholderTy`
* `RegionVid` -> `InferRegion`
* `ListBinderExistentialPredicate` -> `BoundExistentialPredicates`
* `GenericArgsRef` -> `GenericArgs`

r? jackh726