[[!comment format=mdwn
 username="joey"
 subject="""comment 1"""
 date="2015-09-25T13:31:47Z"
 content="""
Ah, I remember seeing this once myself. ghc and cabal don't get the binary
updated atomically.

I've got a fix on the joeyconfig branch, it makes sure the binary is built
and then atomically updates a copy that's used to run propellor.
"""]]
