❯ nix-build -A spacevim
these derivations will be built:
  /nix/store/11ccka931bslmgvl5fz2k13gkqq4indm-vim-pack-dir.drv
  /nix/store/227sfrvv7nfszhbfiqlrwg2ichlywbn4-vim-doc.drv
  /nix/store/4vp5vnnf5bp5lvsc1r3270lplkzw94qq-init.toml.drv
  /nix/store/sz7zl0rimq5b61vkdw7hvdajhhv733d8-vimrc.drv
  /nix/store/6rfvlrjd3mh6mynprd5g7a9c97hq7lr8-vim.drv
  /nix/store/bcraw8sid0k599p6da99jy313r5lr3f0-source.drv
  /nix/store/fx59zfs29gl485lcykgl46hfvn98rlfh-vim.drv
  /nix/store/7vld1x28y8svpakzcw1cijbzcnnyyqdc-spacevim-unstable-2020-07-16.drv
these paths will be fetched (19.49 MiB download, 109.54 MiB unpacked):
  /nix/store/25x7dyv3pap2ipjx484nch78idx9cxcm-python3.8-tomlkit-0.7.0
  /nix/store/2a8chkkhm9s2a4vdfn1ffaw56lgvms6k-python3.8-PyYAML-5.3.1
  /nix/store/435b3nvb3mldlrww7shr93yfq3djk38d-remarshal-0.14.0
  /nix/store/472idl870wh81dngvishb8q1k5c3wlwf-git-2.29.2-doc
  /nix/store/7kanalbqyghfry5ijqp4smczjprp7gm9-ripgrep-12.1.1
  /nix/store/88y7qzyia64jvzmx6wc2nm9f82lbxbrn-nixos-vimrc
  /nix/store/8zma51wfjmvzhf01bfzbchqkia1jyhdz-vim_configurable-8.2.1522
  /nix/store/gkp0pzxlyflhqkna43h4lhz54mzd2q7n-python3.8-python-dateutil-2.8.1
  /nix/store/jcdpn5wgmmj1ccf54vrj4a8946zq3xjx-python3.8-cbor2-5.2.0
  /nix/store/lg590ifl7j0nkm5qhyd49idgrv9l7h42-librsvg-2.50.1
  /nix/store/mzxxiwvr1a65h3q5i2b2khbn7kv60762-python3.8-setuptools_scm-4.1.2
  /nix/store/qd11dn9h0w5apavjr1s9igjscxa9g1d4-git-2.29.2
  /nix/store/r24njdds07qjzvj14ha0z38da7aqqk9i-lua-5.2.4
  /nix/store/x5wp4h9wbwlc3q8m7gajjcrv7h6wjkmp-python3.8-u-msgpack-python-2.7.1
copying path '/nix/store/472idl870wh81dngvishb8q1k5c3wlwf-git-2.29.2-doc' from 'https://cache.nixos.org'...
copying path '/nix/store/lg590ifl7j0nkm5qhyd49idgrv9l7h42-librsvg-2.50.1' from 'https://cache.nixos.org'...
copying path '/nix/store/qd11dn9h0w5apavjr1s9igjscxa9g1d4-git-2.29.2' from 'https://cache.nixos.org'...
copying path '/nix/store/r24njdds07qjzvj14ha0z38da7aqqk9i-lua-5.2.4' from 'https://cache.nixos.org'...
copying path '/nix/store/88y7qzyia64jvzmx6wc2nm9f82lbxbrn-nixos-vimrc' from 'https://cache.nixos.org'...
copying path '/nix/store/2a8chkkhm9s2a4vdfn1ffaw56lgvms6k-python3.8-PyYAML-5.3.1' from 'https://cache.nixos.org'...
copying path '/nix/store/jcdpn5wgmmj1ccf54vrj4a8946zq3xjx-python3.8-cbor2-5.2.0' from 'https://cache.nixos.org'...
copying path '/nix/store/mzxxiwvr1a65h3q5i2b2khbn7kv60762-python3.8-setuptools_scm-4.1.2' from 'https://cache.nixos.org'...
copying path '/nix/store/25x7dyv3pap2ipjx484nch78idx9cxcm-python3.8-tomlkit-0.7.0' from 'https://cache.nixos.org'...
copying path '/nix/store/gkp0pzxlyflhqkna43h4lhz54mzd2q7n-python3.8-python-dateutil-2.8.1' from 'https://cache.nixos.org'...
copying path '/nix/store/x5wp4h9wbwlc3q8m7gajjcrv7h6wjkmp-python3.8-u-msgpack-python-2.7.1' from 'https://cache.nixos.org'...
copying path '/nix/store/7kanalbqyghfry5ijqp4smczjprp7gm9-ripgrep-12.1.1' from 'https://cache.nixos.org'...
copying path '/nix/store/435b3nvb3mldlrww7shr93yfq3djk38d-remarshal-0.14.0' from 'https://cache.nixos.org'...
copying path '/nix/store/8zma51wfjmvzhf01bfzbchqkia1jyhdz-vim_configurable-8.2.1522' from 'https://cache.nixos.org'...
building '/nix/store/4vp5vnnf5bp5lvsc1r3270lplkzw94qq-init.toml.drv'...
building '/nix/store/bcraw8sid0k599p6da99jy313r5lr3f0-source.drv'...

trying https://github.com/SpaceVim/SpaceVim/archive/c937c0e2fd37207c36c8c5e53b36c41d7222fee6.tar.gz
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
100   159  100   159    0     0    550      0 --:--:-- --:--:-- --:--:--   550
100 6024k    0 6024k    0     0  4384k      0 --:--:--  0:00:01 --:--:-- 5911k
unpacking source archive /build/c937c0e2fd37207c36c8c5e53b36c41d7222fee6.tar.gz
error: moving build output '/nix/store/bwnk6ziyxrxda2wblvpmb1dkpvcx3qw4-source' from the sandbox to the Nix store: Permission denied