It seems the two clock packages are still subtly different, apparently due to the tested variant pulling in a dependency on the test libraries.
Compare https://debbugs.gnu.org/cgi/bugreport.cgi?bug=36705. Configuring tasty-hspec-1.1.5.1... Warning: This package indirectly depends on multiple versions of the same package. This is very likely to cause a compile failure. package hspec-core (hspec-core-2.5.5-H06vLnMfEeIEsZFdji6h0O) requires clock-0.7.2-9qwmBbNbGzEOSffjlyarp package tasty (tasty-1.1.0.3-I8Vu9v0lHj8Jlg3jpKXavp) requires clock-0.7.2-Cf9UTsaN2AjEpBnoMpmgkU It’s possible that this warning is really just a warning, and that there’s no real problem here because the packages are really the same, but… I don’t like it.
