If errors occur during `bin/compile` they are currently ignored since the script does not enable Bash's exit on error mode: https://github.com/debitoor/ssh-private-key-buildpack/blob/e7880b1c2a1d746b7985b1f065453cd7d32e0d61/bin/compile#L1-L3 See also: http://redsymbol.net/articles/unofficial-bash-strict-mode/