these 3 derivations will be built:
  /nix/store/1y93sjmld6fs8hkssng6scd3zvnn3faw-but-0.22.1-vendor.drv
  /nix/store/hk6x4b6qmgn68dmjjpkwm8yjsm1zvbg6-unpin-cargo-msrv-hook.drv
  /nix/store/qmh6hzvbq511gngypjsmgbc8c621ka0s-but-0.22.1.drv
these 8 paths will be fetched (868.2 KiB download, 2.5 MiB unpacked):
  /nix/store/f1i90m4xwg5yc3ca5ylp49ni51dx5g24-audit-4.2.1-lib
  /nix/store/2swbxihjql78pnn5kfmhjq5dvp9m744b-dbus-1.16.2
  /nix/store/s30pndvs4kh1dk7jxxj4ljn27spyr8fv-dbus-1.16.2-dev
  /nix/store/qr1vy6jpp19gzak69851yrpcchnp94i8-expand-response-params
  /nix/store/nfvwp1x1bzaiala6nhciaa0ncn0296c3-libapparmor-5.0.2
  /nix/store/q22jwk7vaa69na5akgklgh70bhv9y4al-libcap-ng-0.9.3
  /nix/store/4nq83n0fhihwmz04wip502j8f5jdi9cg-pkg-config-0.29.2
  /nix/store/7fx93fz9c809w8yjxb0934zw6xcjis58-pkg-config-wrapper-0.29.2