Rollup merge of #145511 - semarie:push-rnytptsoxrxn, r=joshtriplett

Rust build fails on OpenBSD after using file_lock feature

PR 130999 added the file_lock feature, but doesn't included OpenBSD in the supported targets (Tier 3 platform), leading to a compilation error ("try_lock() not supported").

Cc `@cberner`

Related to rust-lang/rust#130999

Author: jieyouxu