When generate.sh fails its rc=0

$ ./generate.sh -a
Generating new config.yml file with low resources and LOWRES/MIDRES/HIGHRES templates from config-2_1.yml
./generate.sh: line 171: circleci: command not found
patching file ./config-2_1.yml
Hunk #4 succeeded at 1511 (offset 9 lines).
Hunk #5 succeeded at 1525 (offset 9 lines).
Hunk #6 succeeded at 1540 (offset 9 lines).
Hunk #7 succeeded at 1554 (offset 9 lines).
Hunk #8 succeeded at 1569 (offset 9 lines).
Hunk #9 succeeded at 1583 (offset 9 lines).
Hunk #10 succeeded at 1598 (offset 9 lines).
Hunk #11 succeeded at 1616 (offset 9 lines).
Hunk #12 succeeded at 1631 (offset 9 lines).
Hunk #13 succeeded at 1649 (offset 9 lines).
Hunk #14 succeeded at 1664 (offset 9 lines).
Hunk #15 succeeded at 1682 (offset 9 lines).
Hunk #16 succeeded at 1697 (offset 9 lines).
./generate.sh: line 177: circleci: command not found
patching file ./config-2_1.yml
./generate.sh: line 183: circleci: command not found