these 10 derivations will be built:
  /nix/store/1hbhl7g06dk0b3afr0j1kjj3hham2rnq-cargo-package-rustls-0.23.46.drv
  /nix/store/a35d0rl5813dxpbz7hpxkxgy9nf71bv3-cargo-package-tokio-1.53.3.drv
  /nix/store/h521j3im6c0d6kqhd0i2zgsrjvnw41lx-cargo-package-hyper-1.12.0.drv
  /nix/store/hdgi05595qf4qrq9y3a1ic2m5aiz4g19-cargo-package-want-0.3.2.drv
  /nix/store/rykm4sp7fk7f7lq3kj4plkq4jq2ck5bz-cargo-package-serde_json-1.0.154.drv
  /nix/store/p2aja6c51ppb2cr00j2z62y24zbgscg4-vendor-registry.drv
  /nix/store/q4vwvnvlll667faily1h4d9imjwkxk5m-vendor-cargo-deps.drv
  /nix/store/wc7g082zg33jgsz933zd0kglvcir6115-source.drv
  /nix/store/m5zx8jn5jsdry4nx1lykv27mfhpv4xhp-flakelet-relay-deps-0.1.0.drv
  /nix/store/rgda16vw6a8s6z4gj1gqzjrfpxky3zwc-flakelet-relay-0.1.0.drv
this path will be fetched (154.5 KiB download, 154.5 KiB unpacked):
  /nix/store/5151q4dpc9qpq03cs14bd7h8lnykfw40-cargo-src-serde_json-1.0.154