OneFuzz CLI 6.3.0 failed with: templateERROR:cli:command failed: local variable 'json' referenced before assignment

[stishkin]

This is not 100% reproducible, but it happens.

Onefuzz CLI failed due to: Error  (1, "",   "INFO:onefuzz:creating libfuzzer from templateERROR:cli:command failed: local variable 'json' referenced before assignment",   "template libfuzzer basic --duration 168 --fuzzing_target_options " -runs=10000" --colocate_all_tasks --vm_count 1 --reboot_after_setup --readonly_inputs inputs --notification_config ado_config.json --setup_dir supt_dir --target_exe target_exe --minimized_stack_depth 4 PROJ NAME BUILD POOL")

AB#43451101

[stishkin]

Might be fixed in 6.4 but still would be nice to know the root cause

[nharper285]

For context, 6.3.0 didn't have any of my config changes so this is likely separate. Continuing to investigate root cause.