error:
       … while calling the 'derivationStrict' builtin
         at «nix-internal»/derivation-internal.nix:37:12:
           36|
           37|   strict = derivationStrict drvAttrs;
             |            ^
           38|

       … while evaluating derivation 'equal-contents-there-should-be-no-usr-paths-in-the-binaries'
         whose name attribute is located at «git+https://github.com/NixOS/nixpkgs?ref=nixos-unstable&rev=2631b0b7abcea6e640ce31cd78ea58910d31e650&shallow=1»/pkgs/stdenv/generic/make-derivation.nix:438:13

       … while evaluating attribute 'nativeBuildInputs' of derivation 'equal-contents-there-should-be-no-usr-paths-in-the-binaries'
         at «git+https://github.com/NixOS/nixpkgs?ref=nixos-unstable&rev=2631b0b7abcea6e640ce31cd78ea58910d31e650&shallow=1»/pkgs/stdenv/generic/make-derivation.nix:490:13:
          489|             depsBuildBuild = elemAt (elemAt dependencies 0) 0;
          490|             nativeBuildInputs = elemAt (elemAt dependencies 0) 1;
             |             ^
          491|             depsBuildTarget = elemAt (elemAt dependencies 0) 2;

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

       error: cannot bootstrap GHC on this platform ('riscv64-linux' with libc 'defaultLibc')