Auto merge of #131185 - workingjubilee:rollup-wkcqe2j, r=workingjubilee

Rollup of 3 pull requests

Successful merges:

 - #126930 (Add unstable support for outputting file checksums for use in cargo)
 - #130725 (Parser: better error messages for ``@`` in struct patterns)
 - #131166 (Fix `target_vendor` for `aarch64-nintendo-switch-freestanding`)

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

Author: bors