Is it possible to make it build on i686-linux system?

[amalgame21]

I tried building nixvim with i686-linux like this:
https://github.com/amalgame21/nixvim_i686_testing

Run nix build .\#packages.i686-linux.nvim and it produce this error message:

error: builder for '/nix/store/eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee-python3.13-pytest-regressions-2.7.0.drv' failed with exit code 1;
       last 25 log lines:
       >                 "  Stats for abs(obtained - expected):",
       >                 "    Max:     5",
       >                 "    Mean:    5.0",
       >                 "    Median:  5.0",
       >                 "  Stats for abs(obtained - expected) / abs(expected):",
       >                 "    Number of (differing) non-zero expected results: 200 / 201 (99.5%)",
       >                 "    Relative errors are computed for the non-zero expected results.",
       >                 "    Max:     0.007142857142857143",
       >                 "    Mean:    0.006286830640674575",
       >                 "    Median:  0.006253911138923655",
       >                 "  Individual errors:",
       >                 "    Only showing first 100 mismatches.",
       >                 "          Index              Obtained              Expected            Difference",
       >                 "              0                     5                     0                     5",
       >                 "            700                   705                   700                     5",
       >                 "            701                   706                   701                     5",
       >             ]
       >         )
       > >       assert expected in obtained_error_msg
       > E       AssertionError: assert 'data2:\n  Shape: (5000,)\n  Number of differences: 201 / 5000 (4.0%)\n  Statistics are computed for differing element...          700                     5\n            701                   706                   701                     5' in 'Values are not sufficiently close.\nTo update values, use --force-regen option.\n\ndata1:\n  Shape: (5000,)\n  Number...      797                     5\n            798                   803                   798                     5\n\n'
       >
       > tests/test_ndarrays_regression.py:140: AssertionError
       > =========================== short test summary info ============================
       > FAILED tests/test_ndarrays_regression.py::test_common_case - AssertionError: assert 'data2:\n  Shape: (5000,)\n  Number of differences: ...
       > ========================= 1 failed, 72 passed in 6.52s =========================

[traxys]

You would need to look into why is the pytest-regressions package used, and try to remove what depends on it. We don’t build for i386 in our CI, and I don’t know the status of nixpkgs/hydra, but I’d say it’s going to be a complicated path

[amalgame21]

Thanks for the tip!
After some search I think this is the pytest-regressions issue.
Some people face the same problem here.
NixOS/nixpkgs#387297

And there is a pull request to disable the test. I will try it later.

[amalgame21]

I tried to apply the above pull request to disable tests/test_ndarrays_regression.py by overlay into the standalone setup but it still build with tests/test_ndarrays_regression.py, so unsuccessful.
Now I even patch the nixpkgs then apply into it (I updated my flake), it also cannot build without tests/test_ndarrays_regression.py.

However I added pr = pkgs.python313Packages.pytest-regressions into the flake and the command nix build .\#packages.i686-linux.pr run successfully, so only nvim cannot use the patch.(?)

I am so confused. I already passed the new pkgs into makeNixvimWithModule but still unsuccessful.
Is it just for building modules but not for building neovim itself?