In reply to @alex:tunstall.xyz
I guess the old binary search trick could work...
Remove half of the code and see how it affects memory usage.
Then focus your search onto the more memory-consuming half and repeat.

error:
       … while calling the 'head' builtin
         at /nix/store/i0h8hf708hppbk070zsksgqm2k95rxpr-source/lib/attrsets.nix:1574:11:
         1573|         || pred here (elemAt values 1) (head values) then
         1574|           head values
             |           ^
         1575|         else

       … while evaluating the attribute 'value'
         at /nix/store/i0h8hf708hppbk070zsksgqm2k95rxpr-source/lib/modules.nix:816:9:
          815|     in warnDeprecation opt //
          816|       { value = addErrorContext "while evaluating the option `${showOption loc}':" value;
             |         ^
          817|         inherit (res.defsFinal') highestPrio;

       … while evaluating the option `system.build.toplevel':

       … while evaluating definitions from `/nix/store/i0h8hf708hppbk070zsksgqm2k95rxpr-source/nixos/modules/system/activation/top-level.nix':

       … while evaluating the option `system.systemBuilderArgs':

       … while evaluating definitions from `/nix/store/i0h8hf708hppbk070zsksgqm2k95rxpr-source/nixos/modules/system/activation/activatable-system.nix':

       … while evaluating the option `system.activationScripts.etc.text':

       … while evaluating definitions from `/nix/store/i0h8hf708hppbk070zsksgqm2k95rxpr-source/nixos/modules/system/etc/etc-activation.nix':

       … while evaluating definitions from `/nix/store/i0h8hf708hppbk070zsksgqm2k95rxpr-source/nixos/modules/system/etc/etc.nix':

       … while evaluating the option `environment.etc."NetworkManager/VPN/nm-openconnect-service.name".source':

       … while evaluating definitions from `/nix/store/i0h8hf708hppbk070zsksgqm2k95rxpr-source/nixos/modules/services/networking/networkmanager.nix':

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

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

I cannot find where this etc file is defined lol

In reply to @rosscomputerguy:matrix.org
And the problem is that check does not work

I "broke" the check when I added support for cross-compiling GHC.

All you need to do is override the default GHC to disable building it for the RISC-V platform such that the check functions as originally intended.

In reply to @alex:tunstall.xyz

I "broke" the check when I added support for cross-compiling GHC.

All you need to do is override the default GHC to disable building it for the RISC-V platform such that the check functions as originally intended.

error: builder for '/nix/store/ra18qbxfgr6a2ydln4ja4i56qqql9jai-bpftools-6.12.drv' failed with exit code 1;
       last 25 log lines:
       > Auto-detecting system features:
       > ...                                  libbfd: [ on  ]
       >
       >   DESCEND bpftool
       >
       > Auto-detecting system features:
       > ...                         clang-bpf-co-re: [ OFF ]
       > ...                                    llvm: [ OFF ]
       > ...                                  libcap: [ OFF ]
       > ...                                  libbfd: [ on  ]切断 | ttyUSB0                                                                                                           >
       >   MKDIR   /build/linux-6.12/tools/bpf/bpftool/libbpf/
       >   GEN     /build/linux-6.12/tools/bpf/bpftool/libbpf/bpf_helper_defs.h
       >   CC      /build/linux-6.12/tools/bpf/bpftool/libbpf/staticobjs/libbpf.o
       > In file included from /build/linux-6.12/tools/include/asm/barrier.h:12,
       >                  from /build/linux-6.12/tools/include/linux/ring_buffer.h:4,
       >                  from libbpf.c:37:
       > /build/linux-6.12/tools/include/asm/../../arch/riscv/include/asm/barrier.h:13:10: fatal error: asm/fence.h: No such file or directory
       >    13 | #include <asm/fence.h>
       >       |          ^~~~~~~~~~~~~
       > compilation terminated.
       > make[3]: *** [/build/linux-6.12/tools/build/Makefile.build:106: /build/linux-6.12/tools/bpf/bpftool/libbpf/staticobjs/libbpf.o] Error 1
       > make[2]: *** [Makefile:164: /build/linux-6.12/tools/bpf/bpftool/libbpf/staticobjs/libbpf-in.o] Error 2
       > make[1]: *** [Makefile:46: /build/linux-6.12/tools/bpf/bpftool/libbpf/libbpf.a] Error 2
       > make: *** [Makefile:113: bpftool] Error 2
       For full logs, run 'nix log /nix/store/ra18qbxfgr6a2ydln4ja4i56qqql9jai-bpftools-6.12.drv'.

Fun

切断 | ttyUSB0

This isn't actually in the build logs, is it? ("Disconnected" in ja_JP locale?)