…ith mutation

This is necessary for closure captures in 2021 edition, as they capture individual fields, not the full mentioned variables. So it may try to capture a field of an opaque (because the hidden type is known to be something with a field).

Rust requires a previous version of Rust to build, such as the current version, or the
previous version.  However, the version comparison logic did not take patch releases
into consideration when doing the version comparison for the current branch, e.g.
Rust 1.71.1 could not be built by Rust 1.71.0 because it is neither an exact version
match, or the previous version.

Adjust the version comparison logic to tolerate mismatches in the patch version.

Signed-off-by: Ariadne Conill <ariadne@dereferenced.org>

…ction, r=cjgillot

Perform OpaqueCast field projection on HIR, too.

fixes rust-lang#105819

This is necessary for closure captures in 2021 edition, as they capture individual fields, not the full mentioned variables. So it may try to capture a field of an opaque (because the hidden type is known to be something with a field).

See rust-lang#99806 for when and why we added OpaqueCast to MIR.

…ty-aliases, r=oli-obk

Compute variances for lazy type aliases

Fixes rust-lang#114221.

CC ``@oli-obk``
r? types

…, r=lcnr

resolve before canonicalization in new solver, ICE if unresolved

Fold the values with a resolver before canonicalization instead of making it happen within canonicalization.

This allows us to filter trivial region constraints from the external constraints.

r? ``@lcnr``

…=Nilstrieb

Handle non-utf8 rpaths (fix FIXME)

Removes a FIXME for rust-lang#9639 which is closed since long ago.

Part of rust-lang#44366 which is E-help-wanted.

(Also see rust-lang#114377)

…are, r=ozkanonur

bootstrap: config: fix version comparison bug

Rust requires a previous version of Rust to build, such as the current version, or the previous version.  However, the version comparison logic did not take patch releases into consideration when doing the version comparison for the current branch, e.g. Rust 1.71.1 could not be built by Rust 1.71.0 because it is neither an exact version match, or the previous version.

Adjust the version comparison logic to tolerate mismatches in the patch version.