builder for '/nix/store/2ylannhbpbjd0l0h0zlbwr1f3f8q6wl4-python2.7-flowlogs_reader-2.0.0.drv' failed with exit code 1; last 10 log lines:
  adding 'flowlogs_reader-2.0.0.dist-info/top_level.txt'
  adding 'flowlogs_reader-2.0.0.dist-info/RECORD'
  removing build/bdist.linux-x86_64/wheel
  Finished executing setuptoolsBuildPhase
  installing
  Executing pipInstallPhase
  /build/flowlogs_reader-2.0.0/dist /build/flowlogs_reader-2.0.0
  DEPRECATION: Python 2.7 reached the end of its life on January 1st, 2020. Please upgrade your Python as Python 2.7 is no longer maintained. A future version of pip will drop support for Python 2.7. More details about Python 2 support in pip, can be found at https://pip.pypa.io/en/latest/development/release-process/#python-2-support
  Processing ./flowlogs_reader-2.0.0-py2-none-any.whl
  ERROR: Package 'flowlogs-reader' requires a different Python: 2.7.17 not in '>=3.4'

27 package updated:
prl-tools pyblock qes r8125 r8168 rtlwifi_new sch_cake sch_cake sch_cake sch_cake sch_cake sch_cake sch_cake sch_cake sch_cake sch_cake sch_cake stdenv-linux stdenv-linux stog synfigstudio sysdig sysdig sysdig uclibc-ng v4l2loopback vhba

1 package removed:
python2.7-flowlogs_reader (†20190831)

https://github.com/NixOS/nixpkgs/pull/82869
27 package marked as broken and skipped:
clang-sierraHack-stdenv crossLibcStdenv linuxPackages-libre.sch_cake linuxPackages.sch_cake linuxPackages_4_14.sch_cake linuxPackages_4_4.sysdig linuxPackages_4_9.sysdig linuxPackages_hardened.sch_cake linuxPackages_hardkernel_4_14.prl-tools linuxPackages_hardkernel_4_14.r8125 linuxPackages_hardkernel_4_14.r8168 linuxPackages_hardkernel_4_14.rtlwifi_new linuxPackages_hardkernel_4_14.sch_cake linuxPackages_hardkernel_4_14.sysdig linuxPackages_hardkernel_4_14.v4l2loopback linuxPackages_hardkernel_4_14.vhba linuxPackages_latest-libre.sch_cake linuxPackages_latest_hardened.sch_cake linuxPackages_testing_bcachefs.sch_cake linuxPackages_testing_hardened.sch_cake linuxPackages_xen_dom0.sch_cake linuxPackages_xen_dom0_hardened.sch_cake ocamlPackages.stog python37Packages.pyblock qes synfigstudio uclibcCross