Auto build don't work

[feelingsonice]

Running cargo build using the auto_build example produces one of 2 errors:

  --- stderr
  Error: Connection(Error(Error { kind: Closed, cause: None }))

Or:

  --- stderr
  Error: Connection(Error(Error { kind: Io, cause: Some(Os { code: 54, kind: ConnectionReset, message: "Connection reset by peer" }) }))

I suspect it is related to how the docker container is brought up? Maybe there's a timing issue here because the container isn't yet ready?