gistfile1.txt

# nixos-rebuild switch --upgrade        
unpacking channels...
building Nix...
building the system configuration...
building '/nix/store/yp94djhfg2hpbxkld3hj84r79d94y8lc-source.drv'...

trying https://github.com/nixos/nixpkgs/archive/0252e6ca31c98182e841df494e6c9c4fb022c676.tar.gz
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
100   155    0   155    0     0    430      0 --:--:-- --:--:-- --:--:--   430
100 13.2M    0 13.2M    0     0  1930k      0 --:--:--  0:00:07 --:--:-- 2581k
unpacking source archive /build/0252e6ca31c98182e841df494e6c9c4fb022c676.tar.gz
these derivations will be built:
  /nix/store/qg2iji0186namqqn05wspmlzbxx74g8z-wireguard-0.0.20181119.drv
  /nix/store/d7n9299441cjnrv6bg7gjsijv6qxyqhk-kernel-modules.drv
  /nix/store/2j22s916z73vwx7z0gkjf6jh39d4svyn-kernel-modules-shrunk.drv
  /nix/store/wv4vkvlskrrw6hxnih35rrxj7qi1shra-ripgrep-0.10.0.drv
  /nix/store/wypd6bgk9rk346p2wi5cmaa9vyz5f7jz-nixos-version.drv
  /nix/store/caabbpq6grcjc617gjyb3j3mxkv7ydn0-system-path.drv
  /nix/store/83s42mz0rp9k9rcpivzb39y0n1v6p2h4-dbus-1.drv
  /nix/store/ap0vdwnk6hj51cdgxml1cam6s2xj3imk-issue.drv
  /nix/store/pvllb34zdimz4kddqbk0rk6cl8m4l396-unit-dbus.service.drv
  /nix/store/j24a8rs6wp388vcpjawybnv81fjh8cdd-user-units.drv
  /nix/store/k3lkdcb2d0kn80ppvpvjx40q7bhlyfhh-etc-os-release.drv
  /nix/store/69x4h570sa003zbp8ka5x44g56hghjqq-unit-systemd-fsck-.service.drv
  /nix/store/9hpji2hj8lvr1b17bn0rl8vm85ij97d1-unit-dbus.service.drv
  /nix/store/q9x78m1bc2l4808hcnqmbslsy6q6nrkm-unit-polkit.service.drv
  /nix/store/n16jmbr0wsp0g4mrph02wjy0vwb7pq0a-system-units.drv
  /nix/store/z4jangdyj0v583xkjvm7a92kyw0ixzks-etc-nixos.conf.drv
  /nix/store/5zlqnig6ri2ddkc7q0mrn7q60w1yqfp4-etc.drv
  /nix/store/l3xml0fgcvs30y1wb8n3mgfxzb7bq9s4-stage-1-init.sh.drv
  /nix/store/vgh9rr2kn04kr1wb1jicrrbbbd7r3bc1-initrd.drv
  /nix/store/m0596gn3k6vjxa375vpzk4mn35p57frd-nixos-system-icvm-19.03.git.c75e75c.drv