these 2 derivations will be built:
  /nix/store/qmy0av6pix0f919smbijw2jrf5vfy9iw-spec-kit-1.1.2.drv
  /nix/store/ng2pysd4dfr0z4cv63pckyv4d1y51ih9-check-spec-kit.drv
building '/nix/store/qmy0av6pix0f919smbijw2jrf5vfy9iw-spec-kit-1.1.2.drv'
spec-kit-1.1.2> Sourcing python-remove-tests-dir-hook
spec-kit-1.1.2> Sourcing python-catch-conflicts-hook.sh
spec-kit-1.1.2> Sourcing python-remove-bin-bytecode-hook.sh
spec-kit-1.1.2> Sourcing pypa-build-hook
spec-kit-1.1.2> Using pypaBuildPhase
spec-kit-1.1.2> Sourcing python-runtime-deps-check-hook
spec-kit-1.1.2> Using pythonRuntimeDepsCheckHook
spec-kit-1.1.2> Sourcing pypa-install-hook
spec-kit-1.1.2> Using pypaInstallPhase
spec-kit-1.1.2> Sourcing python-imports-check-hook.sh
spec-kit-1.1.2> Using pythonImportsCheckPhase
spec-kit-1.1.2> Sourcing python-namespaces-hook
spec-kit-1.1.2> Sourcing python-catch-conflicts-hook.sh
spec-kit-1.1.2> Running phase: unpackPhase
spec-kit-1.1.2> unpacking source archive /nix/store/9lk5wx4blgga1djrs2zg5x0wsr3xmq14-source
spec-kit-1.1.2> source root is source
spec-kit-1.1.2> setting SOURCE_DATE_EPOCH to timestamp 315619200 of file "source/workflows/step-catalog.json"
spec-kit-1.1.2> Running phase: patchPhase
spec-kit-1.1.2> Running phase: updateAutotoolsGnuConfigScriptsPhase
spec-kit-1.1.2> Running phase: configurePhase
spec-kit-1.1.2> no configure script, doing nothing
spec-kit-1.1.2> Running phase: buildPhase
spec-kit-1.1.2> Executing pypaBuildPhase
spec-kit-1.1.2> Creating a wheel...
spec-kit-1.1.2> pypa build flags: --no-isolation --outdir dist/ --wheel
spec-kit-1.1.2> * Getting build dependencies for wheel...
spec-kit-1.1.2> * Building wheel...
spec-kit-1.1.2> Successfully built specify_cli-1.1.2-py3-none-any.whl
spec-kit-1.1.2> Finished creating a wheel...
spec-kit-1.1.2> Finished executing pypaBuildPhase
spec-kit-1.1.2> Running phase: pythonRuntimeDepsCheckHook
spec-kit-1.1.2> Executing pythonRuntimeDepsCheck
spec-kit-1.1.2> Checking runtime dependencies for specify_cli-1.1.2-py3-none-any.whl
spec-kit-1.1.2>   - mcp not installed
spec-kit-1.1.2>   - pydantic not installed
error: Cannot build '/nix/store/qmy0av6pix0f919smbijw2jrf5vfy9iw-spec-kit-1.1.2.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/hfxvgms9k44r555gsj61i6w17vm90q3p-spec-kit-1.1.2-dist
         /nix/store/x843jz82n63abkrg4ss3r8n95is9y3n2-spec-kit-1.1.2
       Last 25 log lines:
       > Using pythonImportsCheckPhase
       > Sourcing python-namespaces-hook
       > Sourcing python-catch-conflicts-hook.sh
       > Running phase: unpackPhase
       > unpacking source archive /nix/store/9lk5wx4blgga1djrs2zg5x0wsr3xmq14-source
       > source root is source
       > setting SOURCE_DATE_EPOCH to timestamp 315619200 of file "source/workflows/step-catalog.json"
       > Running phase: patchPhase
       > Running phase: updateAutotoolsGnuConfigScriptsPhase
       > Running phase: configurePhase
       > no configure script, doing nothing
       > Running phase: buildPhase
       > Executing pypaBuildPhase
       > Creating a wheel...
       > pypa build flags: --no-isolation --outdir dist/ --wheel
       > * Getting build dependencies for wheel...
       > * Building wheel...
       > Successfully built specify_cli-1.1.2-py3-none-any.whl
       > Finished creating a wheel...
       > Finished executing pypaBuildPhase
       > Running phase: pythonRuntimeDepsCheckHook
       > Executing pythonRuntimeDepsCheck
       > Checking runtime dependencies for specify_cli-1.1.2-py3-none-any.whl
       >   - mcp not installed
       >   - pydantic not installed
       For full logs, run:
         nix log /nix/store/qmy0av6pix0f919smbijw2jrf5vfy9iw-spec-kit-1.1.2.drv
error: Cannot build '/nix/store/ng2pysd4dfr0z4cv63pckyv4d1y51ih9-check-spec-kit.drv'.
       Reason: 1 dependency failed.
       Output paths:
         /nix/store/1f3ygczknp31h64a0y56j9ij9wjxar62-check-spec-kit