1these 2 derivations will be built:2 /nix/store/f3hghmy16lr33y07mpsx3ibfn5znjs0x-python3.14-ruamel-yaml-0.17.40.drv3 /nix/store/bp5aizkvsqvfhv05bfci23rwcw24ca6a-python3.14-evcouplings-0.2.1.drv4error: Cannot build '/nix/store/f3hghmy16lr33y07mpsx3ibfn5znjs0x-python3.14-ruamel-yaml-0.17.40.drv'.5 Reason: builder failed with exit code 1.6 Output paths:7 /nix/store/7pjrrks468ymbh1bkws4d80mv4xp58j8-python3.14-ruamel-yaml-0.17.40-dist8 /nix/store/ljac8w9mlnfvszza14k1x2vbizv6i082-python3.14-ruamel-yaml-0.17.409 Last 25 log lines:10 > pypa build flags: --no-isolation --outdir dist/ --wheel11 > * Getting build dependencies for wheel...12 > Traceback (most recent call last):13 > File "/nix/store/gxrvc2gq4kzz54dqi1mlqw7h4zy4l6aw-python3.14-pyproject-hooks-1.2.0/lib/python3.14/site-packages/pyproject_hooks/_in_process/_in_process.py", line 389, in <module>14 > main()15 > ~~~~^^16 > File "/nix/store/gxrvc2gq4kzz54dqi1mlqw7h4zy4l6aw-python3.14-pyproject-hooks-1.2.0/lib/python3.14/site-packages/pyproject_hooks/_in_process/_in_process.py", line 373, in main17 > json_out["return_val"] = hook(**hook_input["kwargs"])18 > ~~~~^^^^^^^^^^^^^^^^^^^^^^^^19 > File "/nix/store/gxrvc2gq4kzz54dqi1mlqw7h4zy4l6aw-python3.14-pyproject-hooks-1.2.0/lib/python3.14/site-packages/pyproject_hooks/_in_process/_in_process.py", line 143, in get_requires_for_build_wheel20 > return hook(config_settings)21 > File "/nix/store/xv8alksljvbyk0mrbf9xvl16ygx27ajn-python3.14-setuptools-83.0.0/lib/python3.14/site-packages/setuptools/build_meta.py", line 333, in get_requires_for_build_wheel22 > return self._get_build_requires(config_settings, requirements=[])23 > ~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^24 > File "/nix/store/xv8alksljvbyk0mrbf9xvl16ygx27ajn-python3.14-setuptools-83.0.0/lib/python3.14/site-packages/setuptools/build_meta.py", line 301, in _get_build_requires25 > self.run_setup()26 > ~~~~~~~~~~~~~~^^27 > File "/nix/store/xv8alksljvbyk0mrbf9xvl16ygx27ajn-python3.14-setuptools-83.0.0/lib/python3.14/site-packages/setuptools/build_meta.py", line 317, in run_setup28 > exec(code, locals())29 > ~~~~^^^^^^^^^^^^^^^^30 > File "<string>", line 79, in <module>31 > ImportError: cannot import name 'Str' from 'ast' (/nix/store/rgnappqqc5vbq60gza5fflyk84sylwl6-python3-3.14.6/lib/python3.14/ast.py)32 >33 > TIP pass --env-dir and --sdist-extract-dir to keep the build environment and sources, then see https://build.pypa.io/en/stable/how-to/troubleshooting.html#debug-a-failed-build for help debugging a failed build34 > ERROR Backend subprocess exited when trying to invoke get_requires_for_build_wheel35 For full logs, run:36 nix log /nix/store/f3hghmy16lr33y07mpsx3ibfn5znjs0x-python3.14-ruamel-yaml-0.17.40.drv37error: Cannot build '/nix/store/bp5aizkvsqvfhv05bfci23rwcw24ca6a-python3.14-evcouplings-0.2.1.drv'.38 Reason: 1 dependency failed.39 Output paths:40 /nix/store/596if06wskgj9j5b9i0mpj16wnxsiwl3-python3.14-evcouplings-0.2.1-dist41 /nix/store/gcppsg7xzaf4g8gzs4v548nmdw6d5byl-python3.14-evcouplings-0.2.1