...
Building wheels for collected packages: fcos
Building wheel for fcos (setup.py): started
Building wheel for fcos (setup.py): finished with status 'error'
Running setup.py clean for fcos
Failed to build fcos
Installing collected packages: ninja, yacs, fcos
Running setup.py install for fcos: started
Running setup.py install for fcos: finished with status 'error'
Running command git clone -q https://github.com/tianzhi0549/FCOS.git /tmp/pip-req-build-1cp7ak8g
ERROR: Failed building wheel for fcos
ERROR: Command errored out with exit status 1: /usr/bin/python3 -u -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'/tmp/pip-req-build-1cp7ak8g/setup.py'"'"'; __file__='"'"'/tmp/pip-req-build-1cp7ak8g/setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(__file__);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' install --record /tmp/pip-record-uzqgnm5x/install-record.txt --single-version-externally-managed --compile Check the logs for full command output.
bash: line 4: fcos: command not found
Following these instructions for testing-only installation.