I'm not sure why this wasn't an issue before, but the generation of
jobset constituents in Hydra trips over this. The Hydra-convention is to
have the `system`-attribute last anyways, not in-between.
Since this is a single attribute, get rid of it for the sake of
simplicity.
Change-Id: I80ef1b92ed158c8712ee899534ce82130614f338
If e.g. i686-linux is not in the list of systems and thus no attribute in `nixpkgsFor`
exists (e.g. on hydra.afnix.fr), don't try to instantiate it.
Change-Id: I118e2af5289ad7bd95ce7f1e6b0728afb6f0321f
...expect for the dev-shell: while it doesn't seem reasonable to me to
even build dev-shells in post-merge CI, this should still remain part of
the pre-merge checks.
Change-Id: I5cb9b4cf53484f884d694770ed94d0dc0862117e
Maximilian Bosch