Correct builds != never running garbage cleanup. I would settle for it evicting older variants of a build (I also dislike the random hash that’s impossible to determine what specifically is different between two hashes / which one is newer).
Automatic garbage collection of old build artifacts* is coming in Rust 1.88 (currently on the beta channel, will become the new stable release in two weeks):
In versions earlier than 1.88, garbage collection required the unstable -Zgc flag (and a nightly toolchain). But in 1.88 and later, automatic garbage collection is enabled by default.
