CI: use 'machine' for rust so that we're not installing rust every time.
CI: use 'machine' for rust so that we're not installing rust every time.

Signed-off-by: Chris Granger <5654cde260ae99bc4d30054171b8bcd902efd19a@gmail.com>

kidaa/Eve-1,kidaa/Eve-1,pel-daniel/Eve,pel-daniel/Eve,bjtitus/Eve,bluesnowman/Eve,bluesnowman/Eve,bluesnowman/Eve,kidaa/Eve-1,bjtitus/Eve,bjtitus/Eve,bjtitus/Eve,pel-daniel/Eve,justintaft/Eve,justintaft/Eve,bluesnowman/Eve,justintaft/Eve,pel-daniel/Eve,justintaft/Eve,kidaa/Eve-1