TestRunner.run() has an error

[zounathan]

In function TestRunner.run, the command constructed by testcase_manager.get_command_line_for_application can be None, which result in an error. But it doesn't crash the bot.

2021-04-16 10:01:51,717 - run_bot - INFO - Retrieving custom binary build r1.
2021-04-16 10:01:51,718 - run_bot - INFO - Build already exists.
2021-04-16 10:01:51,718 - run_bot - INFO - Use previously picked fuzz target fuzzer for fuzzing.
2021-04-16 10:01:51,718 - run_bot - INFO - Setup application path.
2021-04-16 10:01:51,719 - run_bot - INFO - Executing command:
2021-04-16 10:01:51,720 - run_bot - ERROR - Exception occurred when running command: .
Traceback (most recent call last):
  File "/home/icsl/clusterfuzz/clusterfuzz-master/my-bot/clusterfuzz/src/python/system/process_handler.py", line 193, in run_process
    ignore_children=ignore_children)
  File "/home/icsl/clusterfuzz/clusterfuzz-master/my-bot/clusterfuzz/src/third_party/mozprocess/processhandler.py", line 760, in __init__
    (self.cmd, self.args) = (self.cmd[0], self.cmd[1:])
IndexError: list index out of range
2021-04-16 10:01:51,722 - run_bot - ERROR - Exception occurred when running command: .
Traceback (most recent call last):
  File "/home/icsl/clusterfuzz/clusterfuzz-master/my-bot/clusterfuzz/src/python/system/process_handler.py", line 193, in run_process
    ignore_children=ignore_children)
  File "/home/icsl/clusterfuzz/clusterfuzz-master/my-bot/clusterfuzz/src/third_party/mozprocess/processhandler.py", line 760, in __init__
    (self.cmd, self.args) = (self.cmd[0], self.cmd[1:])
IndexError: list index out of range
2021-04-16 10:01:51,723 - run_bot - ERROR - Exception occurred when running command: .
Traceback (most recent call last):
  File "/home/icsl/clusterfuzz/clusterfuzz-master/my-bot/clusterfuzz/src/python/system/process_handler.py", line 193, in run_process
    ignore_children=ignore_children)
  File "/home/icsl/clusterfuzz/clusterfuzz-master/my-bot/clusterfuzz/src/third_party/mozprocess/processhandler.py", line 760, in __init__
    (self.cmd, self.args) = (self.cmd[0], self.cmd[1:])
IndexError: list index out of range
2021-04-16 10:01:51,723 - run_bot - ERROR - Exception occurred when running command: .
Traceback (most recent call last):
  File "/home/icsl/clusterfuzz/clusterfuzz-master/my-bot/clusterfuzz/src/python/system/process_handler.py", line 193, in run_process
    ignore_children=ignore_children)
  File "/home/icsl/clusterfuzz/clusterfuzz-master/my-bot/clusterfuzz/src/third_party/mozprocess/processhandler.py", line 760, in __init__
    (self.cmd, self.args) = (self.cmd[0], self.cmd[1:])
IndexError: list index out of range
2021-04-16 10:01:51,724 - run_bot - ERROR - Exception occurred when running command: .
Traceback (most recent call last):
  File "/home/icsl/clusterfuzz/clusterfuzz-master/my-bot/clusterfuzz/src/python/system/process_handler.py", line 193, in run_process
    ignore_children=ignore_children)
  File "/home/icsl/clusterfuzz/clusterfuzz-master/my-bot/clusterfuzz/src/third_party/mozprocess/processhandler.py", line 760, in __init__
    (self.cmd, self.args) = (self.cmd[0], self.cmd[1:])
IndexError: list index out of range
2021-04-16 10:01:51,725 - run_bot - ERROR - Exception occurred when running command: .
Traceback (most recent call last):
  File "/home/icsl/clusterfuzz/clusterfuzz-master/my-bot/clusterfuzz/src/python/system/process_handler.py", line 193, in run_process
    ignore_children=ignore_children)
  File "/home/icsl/clusterfuzz/clusterfuzz-master/my-bot/clusterfuzz/src/third_party/mozprocess/processhandler.py", line 760, in __init__
    (self.cmd, self.args) = (self.cmd[0], self.cmd[1:])
IndexError: list index out of range
2021-04-16 10:01:51,726 - run_bot - ERROR - Exception occurred when running command: .
Traceback (most recent call last):
  File "/home/icsl/clusterfuzz/clusterfuzz-master/my-bot/clusterfuzz/src/python/system/process_handler.py", line 193, in run_process
    ignore_children=ignore_children)
  File "/home/icsl/clusterfuzz/clusterfuzz-master/my-bot/clusterfuzz/src/third_party/mozprocess/processhandler.py", line 760, in __init__
    (self.cmd, self.args) = (self.cmd[0], self.cmd[1:])
IndexError: list index out of range
2021-04-16 10:01:51,727 - run_bot - ERROR - Exception occurred when running command: .
Traceback (most recent call last):
  File "/home/icsl/clusterfuzz/clusterfuzz-master/my-bot/clusterfuzz/src/python/system/process_handler.py", line 193, in run_process
    ignore_children=ignore_children)
  File "/home/icsl/clusterfuzz/clusterfuzz-master/my-bot/clusterfuzz/src/third_party/mozprocess/processhandler.py", line 760, in __init__
    (self.cmd, self.args) = (self.cmd[0], self.cmd[1:])
IndexError: list index out of range
2021-04-16 10:01:51,728 - run_bot - ERROR - Exception occurred when running command: .
Traceback (most recent call last):
  File "/home/icsl/clusterfuzz/clusterfuzz-master/my-bot/clusterfuzz/src/python/system/process_handler.py", line 193, in run_process
    ignore_children=ignore_children)
  File "/home/icsl/clusterfuzz/clusterfuzz-master/my-bot/clusterfuzz/src/third_party/mozprocess/processhandler.py", line 760, in __init__
    (self.cmd, self.args) = (self.cmd[0], self.cmd[1:])
IndexError: list index out of range
2021-04-16 10:01:51,729 - run_bot - ERROR - Exception occurred when running command: .
Traceback (most recent call last):
  File "/home/icsl/clusterfuzz/clusterfuzz-master/my-bot/clusterfuzz/src/python/system/process_handler.py", line 193, in run_process
    ignore_children=ignore_children)
  File "/home/icsl/clusterfuzz/clusterfuzz-master/my-bot/clusterfuzz/src/third_party/mozprocess/processhandler.py", line 760, in __init__
    (self.cmd, self.args) = (self.cmd[0], self.cmd[1:])
IndexError: list index out of range
2021-04-16 10:01:51,730 - run_bot - ERROR - Exception occurred when running command: .
Traceback (most recent call last):
  File "/home/icsl/clusterfuzz/clusterfuzz-master/my-bot/clusterfuzz/src/python/system/process_handler.py", line 193, in run_process
    ignore_children=ignore_children)
  File "/home/icsl/clusterfuzz/clusterfuzz-master/my-bot/clusterfuzz/src/third_party/mozprocess/processhandler.py", line 760, in __init__
    (self.cmd, self.args) = (self.cmd[0], self.cmd[1:])
IndexError: list index out of range
2021-04-16 10:01:54,725 - run_bot - INFO - Total crash count: 0/10. Flaky: False. Security: None. State:
None
2021-04-16 10:01:54,740 - run_bot - INFO - Updated testcase 65 (bug -).
2021-04-16 10:01:54,740 - run_bot - ERROR - Unable to reproduce crash (testcase 65, job afl_asan_linux_crash).
NoneType: None