GC Warning: Failed to expand heap by 4194304 KiB
error:
       … while evaluating attribute 'drv'
         at /nix/store/3wxp25h4zm6vkbzljhjnj5hca89jx8zp-filnix-experiment-0.13.2/lib/experiment/planner.nix:14:3:
           13| {
           14|   drv = p.drvPath;
             |   ^
           15|   name = p.name;

       … while evaluating the attribute 'drvPath'
         at /nix/store/jh7cf4r5zl43286av6x934z7mx2vf5j4-source/lib/customisation.nix:418:7:
          417|     // {
          418|       drvPath =
             |       ^
          419|         assert condition;

       (stack trace truncated; use '--show-trace' to show the full, detailed trace)

       error: Package ‘libbsd-0.12.2’ in /nix/store/jh7cf4r5zl43286av6x934z7mx2vf5j4-source/pkgs/by-name/li/libbsd/package.nix:49 is marked as broken, refusing to evaluate.

       a) To temporarily allow broken packages, you can use an environment variable
          for a single invocation of the nix tools.

            $ export NIXPKGS_ALLOW_BROKEN=1

          Note: When using `nix shell`, `nix build`, `nix develop`, etc with a flake,
                then pass `--impure` in order to allow use of environment variables.

       b) For `nixos-rebuild` you can set
         { nixpkgs.config.allowBroken = true; }
       in configuration.nix to override this.

       c) For `nix-env`, `nix-build`, `nix-shell` or any other Nix command you can add
         { allowBroken = true; }
       to ~/.config/nixpkgs/config.nix.
GC Warning: Failed to expand heap by 4194304 KiB
error:
       … while evaluating attribute 'drv'
         at /nix/store/3wxp25h4zm6vkbzljhjnj5hca89jx8zp-filnix-experiment-0.13.2/lib/experiment/planner.nix:14:3:
           13| {
           14|   drv = p.drvPath;
             |   ^
           15|   name = p.name;

       … while evaluating the attribute 'drvPath'
         at /nix/store/s93x1y3adg2cgppbnskxl5n8wabf0v6j-source/lib/customisation.nix:418:7:
          417|     // {
          418|       drvPath =
             |       ^
          419|         assert condition;

       (stack trace truncated; use '--show-trace' to show the full, detailed trace)

       error: cannot coerce null to a string: null
GC Warning: Failed to expand heap by 4194304 KiB
GC Warning: Failed to expand heap by 4194304 KiB
GC Warning: Failed to expand heap by 4194304 KiB
GC Warning: Failed to expand heap by 4194304 KiB
GC Warning: Failed to expand heap by 4194304 KiB
GC Warning: Failed to expand heap by 4194304 KiB
error:
       … while evaluating attribute 'drv'
         at /nix/store/3wxp25h4zm6vkbzljhjnj5hca89jx8zp-filnix-experiment-0.13.2/lib/experiment/planner.nix:14:3:
           13| {
           14|   drv = p.drvPath;
             |   ^
           15|   name = p.name;

       … while evaluating the attribute 'drvPath'
         at /nix/store/81wv2gqkr03qs5ypyhvpbqwxsam3c8fb-source/lib/customisation.nix:418:7:
          417|     // {
          418|       drvPath =
             |       ^
          419|         assert condition;

       (stack trace truncated; use '--show-trace' to show the full, detailed trace)

       error: Package ‘bup-0.33.9’ in /nix/store/81wv2gqkr03qs5ypyhvpbqwxsam3c8fb-source/pkgs/by-name/bu/bup/package.nix:86 is marked as broken, refusing to evaluate.

       a) To temporarily allow broken packages, you can use an environment variable
          for a single invocation of the nix tools.

            $ export NIXPKGS_ALLOW_BROKEN=1

          Note: When using `nix shell`, `nix build`, `nix develop`, etc with a flake,
                then pass `--impure` in order to allow use of environment variables.

       b) For `nixos-rebuild` you can set
         { nixpkgs.config.allowBroken = true; }
       in configuration.nix to override this.

       c) For `nix-env`, `nix-build`, `nix-shell` or any other Nix command you can add
         { allowBroken = true; }
       to ~/.config/nixpkgs/config.nix.