Two tests hardcoded absolute paths into /bin, which on NixOS holds only
`sh` — so `cargo test` failed there for reasons that had nothing to do
with the code under test.
`gamelease` only needs a process that exits quickly and successfully, so
the bare name resolved through PATH is exactly right.
`pyrowave_remote` cannot use a bare name: `spawn_link` pins the binary
with `PinnedExe::open`, so a name that PATH would have resolved fails the
OPEN instead — which takes the spawn-failure rung rather than the
handshake rung the test exists to exercise. It resolves a real path off
PATH first, keeping the test on the rung it names.
enricobuehler
5bcee83c34