Failed building wheel for shellphish-afl

[salmonx]

Requirement already satisfied: plumbum in /root/Envs/angr/lib/python2.7/site-packages (from rpyc->idalink->cle>=6.7.1.31->angr->fuzzer==1.0)
Building wheels for collected packages: shellphish-afl
Running setup.py bdist_wheel for shellphish-afl ... error
Complete output from command /root/Envs/angr/bin/python -u -c "import setuptools, tokenize;file='/tmp/pip-build-7jhQ6E/shellphish-afl/setup.py';f=getattr(tokenize, 'open', open)(file);code=f.read().replace('\r\n', '\n');f.close();exec(compile(code, file, 'exec'))" bdist_wheel -d /tmp/tmpeulNjnpip-wheel- --python-tag cp27:
running bdist_wheel
running build
Setting up AFL-other-arch
Cloning into 'bin/afl-unix'...
error: [Errno 2] No such file or directory: 'patches/afl-patch.diff'

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Failed building wheel for shellphish-afl
Running setup.py clean for shellphish-afl
Failed to build shellphish-afl
Installing collected packages: shellphish-qemu, shellphish-afl, fuzzer
Running setup.py install for shellphish-afl ... /
\Killed