Oct 11 07:55:42.275 ERRO this task or one of its parent failed!
Oct 11 07:55:42.275 ERRO failed to generate lockfile for 0x8b/Advent-of-Code-2015
Oct 11 07:55:42.276 ERRO caused by: unable to generate lockfile for 0x8b/Advent-of-Code-2015
Oct 11 07:55:42.279 ERRO caused by: command `"docker" "start" "-a" "ae5382c6120cf0547c06d09aa7cd8dd830a0f2940915a106504edc30062abbbf"` failed