bug#36457: Guix does not match point-versions correctly

[swedebugia]

Hi

I'm doing the crate-adventure and stumbled on this:

starting phase `build'
error: failed to select a version for the requirement `clippy = "^0.0.41"`
  candidate versions found which didn't match: 0.0.302
  location searched: directory source 
`/tmp/guix-build-rust-blake2-rfc-0.2.18.drv-0/blake2-rfc-0.2.18/guix-vendor` 
(which is replacing registry `https://github.com/rust-lang/crates.io-index`)
required by package `blake2-rfc v0.2.18 
(/tmp/guix-build-rust-blake2-rfc-0.2.18.drv-0/blake2-rfc-0.2.18)`

But the version we got is way above .41.
0.0.302 > 0.0.41!

WDYT?

--
Cheers Swedebugia