these 21 derivations will be built:
  /nix/store/lm3xqpcqc3lyrr6ja063mq2cwgn1qyk4-chain-1-root.drv
  /nix/store/7dvjd0ky49170917ni38w58280d6gbms-chain-1-link-1.drv
  /nix/store/k61ikwb09v8nfy3yjkdsjwxsmlkj5c9a-chain-1-link-2.drv
  /nix/store/hqv9kf8jwyyyqgljh2ic3khimmy1yc7v-chain-1-link-3.drv
  /nix/store/863z7c85wcr834jpnpmkdqbsjbp06r0f-chain-1-link-4.drv
  /nix/store/65nmr96917s52p49z867w9vaycgm12i7-chain-1-link-5.drv
  /nix/store/avf0lkis51ycbgzh4ahv88fvjsqrkc6x-chain-1-link-6.drv
  /nix/store/13rdisrlwlf9h8kr6ma1kninzrrzk0dz-chain-1-link-7.drv
  /nix/store/zk666w1lk43lhw8jdw932wzmgk7y6i8l-chain-1-link-8.drv
  /nix/store/n5clbv7sd8yl34jfi23ykdvvh0jmnwi9-chain-1-link-9.drv
  /nix/store/kjrc21w00lvfzs4sg151xmqq381cpc5q-chain-1-link-10.drv
  /nix/store/7klbyhxyi711wk48p7h1ycm1jr0m960i-chain-1-link-11.drv
  /nix/store/7y2qb8ws2wcxyj2ixcaywfwy2mg8gigr-chain-1-link-12.drv
  /nix/store/pmdpxndzg6rhfl2hbdzmrfbh558p2akq-chain-1-link-13.drv
  /nix/store/7bc995svrdp73vzkz557c2xwwyixddrb-chain-1-link-14.drv
  /nix/store/56qgf8gmdcv2ciyyrnc6kvc8n9a6mia7-chain-1-link-15.drv
  /nix/store/8lxwd2dqjc5yswzcys77l9z3i7x0jchs-chain-1-link-16.drv
  /nix/store/02p5c9falrj5snhdsimy4m8rdhnj5wfq-chain-1-link-17.drv
  /nix/store/yyls6xcpm0zfxnjy0s06ixcpxn75f8cz-chain-1-link-18.drv
  /nix/store/0pfx5ii0jb8cy2yg0g92xgqxk6dfjqsq-chain-1-link-19.drv
  /nix/store/fjfymbhyb42021n36v0x3rm99nan09v8-chain-1-link-20.drv