Sourcing pip-install-hook
Sourcing setuptools-build-hook
Using setuptoolsShellHook
@nix { "action": "setPhase", "phase": "unpackPhase" }
unpacking sources
unpacking source archive /nix/store/lfkj40ykgzy144wlpiwhr74la3sfb8c6-wheel-0.36.2-source
unpacking source archive /nix/store/r7451b05lgnq5v7har6vhvfi5zzxngi8-pip-21.1.3-source
unpacking source archive /nix/store/4rvmv34qikyfqd7w101wfhwddzrq6i82-setuptools-57.2.0-sdist.tar.gz
source root is .
@nix { "action": "setPhase", "phase": "patchPhase" }
patching sources
@nix { "action": "setPhase", "phase": "configurePhase" }
configuring
no configure script, doing nothing
@nix { "action": "setPhase", "phase": "installPhase" }
installing
Building setuptools wheel...
/build/setuptools /build
Processing /build/setuptools
  DEPRECATION: A future pip version will change local packages to be built in-place without first copying to a temporary directory. We recommend you use --use-feature=in-tree-build to test your packages with this new behavior before it becomes the default.
   pip 21.3 will remove support for this functionality. You can find discussion regarding this at https://github.com/pypa/pip/issues/7555.
Using legacy 'setup.py install' for setuptools, since package 'wheel' is not installed.
Installing collected packages: setuptools
    Running setup.py install for setuptools ... [?25l- \ | / - \ done
[?25hSuccessfully installed setuptools
/build
Building wheel wheel...
/build/wheel /build
Processing /build/wheel
  DEPRECATION: A future pip version will change local packages to be built in-place without first copying to a temporary directory. We recommend you use --use-feature=in-tree-build to test your packages with this new behavior before it becomes the default.
   pip 21.3 will remove support for this functionality. You can find discussion regarding this at https://github.com/pypa/pip/issues/7555.
Using legacy 'setup.py install' for wheel, since package 'wheel' is not installed.
Installing collected packages: wheel
    Running setup.py install for wheel ... [?25l- \ done
[?25hSuccessfully installed wheel-0.36.2
/build
Building pip wheel...
/build/pip /build
Processing /build/pip
  DEPRECATION: A future pip version will change local packages to be built in-place without first copying to a temporary directory. We recommend you use --use-feature=in-tree-build to test your packages with this new behavior before it becomes the default.
   pip 21.3 will remove support for this functionality. You can find discussion regarding this at https://github.com/pypa/pip/issues/7555.
    Preparing wheel metadata ... [?25l- \ done
[?25hBuilding wheels for collected packages: pip
  Building wheel for pip (PEP 517) ... [?25l- \ | / - \ done
[?25h  Created wheel for pip: filename=pip-21.1.3-py3-none-any.whl size=1548044 sha256=0ee069e628e3a9cb8a91a46b4d02d1335572da5fb90a41d0654bcaf5e0030a8e
  Stored in directory: /build/pip-ephem-wheel-cache-u03qpm_d/wheels/1d/8d/70/3c3937fd7730f5d9c76bd09de3e451c6cf6a9ef224ef2f893d
Successfully built pip
Installing collected packages: pip
  WARNING: The scripts pip, pip3 and pip3.7 are installed in '/nix/store/r3idvlx2g1cbiafkwvrz86chj8ah2m2m-python3.7-bootstrapped-pip-21.1.3/bin' which is not on PATH.
  Consider adding this directory to PATH or, if you prefer to suppress this warning, use --no-warn-script-location.
Successfully installed pip-21.1.3
/build
@nix { "action": "setPhase", "phase": "fixupPhase" }
post-installation fixup
shrinking RPATHs of ELF executables and libraries in /nix/store/r3idvlx2g1cbiafkwvrz86chj8ah2m2m-python3.7-bootstrapped-pip-21.1.3
strip is /nix/store/v8imx1nvyz0hgvx9cbcmh6gp4ngw3ffj-binutils-2.35.1/bin/strip
stripping (with command strip and flags -S) in /nix/store/r3idvlx2g1cbiafkwvrz86chj8ah2m2m-python3.7-bootstrapped-pip-21.1.3/lib  /nix/store/r3idvlx2g1cbiafkwvrz86chj8ah2m2m-python3.7-bootstrapped-pip-21.1.3/bin 
patching script interpreter paths in /nix/store/r3idvlx2g1cbiafkwvrz86chj8ah2m2m-python3.7-bootstrapped-pip-21.1.3
checking for references to /build/ in /nix/store/r3idvlx2g1cbiafkwvrz86chj8ah2m2m-python3.7-bootstrapped-pip-21.1.3...