• built on NixOS

• The tests defined in passthru.tests, if any, passed

• 0 of 0 passed binary check by having a zero exit code.

• 0 of 0 passed binary check by having the new version present in output.

• found 20200222 with grep in /nix/store/p29m1zn2xy0z9f5gjggyjrfh3dj9x7s5-parallel-20200222

• directory tree listing: https://gist.github.com/e01328e21472de6779ff75e6b0aef771

• du listing: https://gist.github.com/351caafd653c2d28596d37008286e98c

23 total rebuild path(s)

8 package rebuild(s)

8 x86_64-linux rebuild(s)
6 i686-linux rebuild(s)
4 x86_64-darwin rebuild(s)
5 aarch64-linux rebuild(s)

First fifty rebuilds by attrpath
adapta-gtk-theme
image_optim
jpeg-archive
last
parallel
plata-theme
profile-cleaner
tebreak

Either download from Cachix:

nix-store -r /nix/store/p29m1zn2xy0z9f5gjggyjrfh3dj9x7s5-parallel-20200222 \
  --option binary-caches 'https://cache.nixos.org/ https://r-ryantm.cachix.org/' \
  --option trusted-public-keys '
  r-ryantm.cachix.org-1:gkUbLkouDAyvBdpBX0JOdIiD2/DP1ldF3Z3Y6Gqcc4c=
  cache.nixos.org-1:6NCHdD59X431o0gWypbMrAURkbJ16ZPMQFGspcDShjY=
  '

(r-ryantm's Cachix cache is only trusted for this store-path realization.)
For the Cachix download to work, your user must be in the trusted-users list or you can use sudo since root is effectively trusted.

Or, build yourself:

nix-build -A parallel https://github.com/r-ryantm/nixpkgs/archive/519ac8cff4b7c6ba566647ee211e9bc241a14d83.tar.gz

After you've downloaded or built it, look at the files and if there are any, run the binaries:

ls -la /nix/store/p29m1zn2xy0z9f5gjggyjrfh3dj9x7s5-parallel-20200222
ls -la /nix/store/p29m1zn2xy0z9f5gjggyjrfh3dj9x7s5-parallel-20200222/bin