mc needs to exit at first failure

[kannappanr]

Mc needs to exit at first failure, in the following run, where this test was performed against aminio running in gateway s3 mode, the last test says pass, but the previous one says FAIL. The test should have exited after it sees a failure.

{"name": "mc", "duration": 1632, "function": "make_bucket\n", "status": "PASS"} {"name": "mc", "duration": 5960, "function": "./mc cp --json target/mc-mint-test-bucket-17300/datafile-1-MB /tmp\n", "status": "PASS"} {"name": "mc", "duration": 107018, "function": "./mc cp --json target/mc-mint-test-bucket-13378/datafile-65-MB /tmp\n", "status": "PASS"} {"name": "mc", "duration": 6085, "function": "./mc share --json upload target/mc-mint-test-bucket-24277/datafile-1-MB\n", "status": "PASS"} {"name": "mc", "duration": 5684, "function": "./mc share --json download target/mc-mint-test-bucket-17866/datafile-1-MB\n", "status": "PASS"} {"name": "mc", "duration": 132495, "function": "./mc mirror -q /mint/data target/mc-mint-test-bucket-1021\n", "status": "PASS"} {"name": "mc", "duration": 3704, "function": "./mc cat target/mc-mint-test-bucket-22351/run.sh\n", "status": "PASS"} {"name": "mc", "duration": 5, "function": "./mc mb target/Mc-mint-test-bucket-14827\n", "status": "PASS"} {"name": "mc", "duration": 3222, "function": "./mc cp /mint/data/datafile-1-MB target/mc-mint-test-bucket-20667//2123123\123\n", "status": "FAIL", "error": "/mint/data/datafile-1-MB -> target/mc-mint-test-bucket-20667/2123123\123 Total: 1024.00 KB, Transferred: 1024.00 KB, Speed: 592.97 KB/s"} {"name": "mc", "duration": 3278, "function": "./mc cp /mint/data/datafile-1-MB target/mc-mint-test-bucket-20667//2123123\123\n", "status": "PASS"}