these 2 derivations will be built:
  /nix/store/734l58adik49fxvyv1mmm5m46ay3ahxj-pdfcraft-web-0.15.0-vendor.drv
  /nix/store/myd5svzhbrspxslyy538il2jnnnb0had-pdfcraft-web-0.15.0.drv
error: Cannot build '/nix/store/myd5svzhbrspxslyy538il2jnnnb0had-pdfcraft-web-0.15.0.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/rqd2fcqyi9wasl4mw90ngwkqjpq3f67c-pdfcraft-web-0.15.0
       Last 21 log lines:
       > Running phase: unpackPhase
       > unpacking source archive /nix/store/9zg6irc4pnmajfvif3x5fl72hjq2w7x2-source
       > source root is source
       > Executing cargoSetupPostUnpackHook
       > Finished cargoSetupPostUnpackHook
       > Running phase: patchPhase
       > Executing cargoSetupPostPatchHook
       > Validating consistency between /build/source/Cargo.lock and /build/pdfcraft-web-0.15.0-vendor/Cargo.lock
       > Finished cargoSetupPostPatchHook
       > Running phase: updateAutotoolsGnuConfigScriptsPhase
       > Running phase: configurePhase
       > Running phase: buildPhase
       > 2026-10-29T02:04:41.277125Z ERROR error
       > error from build pipeline
       >
       > Caused by:
       >     0: error getting cargo metadata
       >     1: `cargo metadata` exited with an error: error: patch location `https://github.com/storytold/egui.git?rev=6d518fc799681571963842f95b55a6b68431b15a` does not contain packages matching `egui_demo_lib`
       >        help: check `egui_demo_lib` patch definition for `https://github.com/rust-lang/crates.io-index` in `/build/source/Cargo.toml`
       >
       > 2026-10-29T02:04:41.277160Z ERROR error from build pipeline
       For full logs, run:
         nix log /nix/store/myd5svzhbrspxslyy538il2jnnnb0had-pdfcraft-web-0.15.0.drv