these 5 derivations will be built:
  /nix/store/apaaimcjj4alf1wg201vivbhlmqpy1y3-serde_core-1.0.229.drv
  /nix/store/b9f3kim7086hqxsn4cha7b16kysyxwj9-serde_derive-1.0.229.drv
  /nix/store/mrqqzyq1xihxnzlr9r5jr1497q3s2652-serde-1.0.229.drv
  /nix/store/9f2halawdaghjkya8z7d030ghjdqqfsf-cargo-vendor-dir.drv
  /nix/store/m29v41m5ia1vbicnvz4m7wa4fnyg75v8-bob-0.1.0.drv