these 13 derivations will be built:
  /nix/store/krv1mjinvvnh2pw4si66rlj43341fpcn-nix-store-2.36.0pre.drv
  /nix/store/zgwv08axlnvpk4q7672wsinzv506kpyl-nix-fetchers-2.36.0pre.drv
  /nix/store/37a6p4ad0lh9ky4sv28gnclwzk5y21j0-nix-expr-2.36.0pre.drv
  /nix/store/9ypk2ym3xw7yzizm4sw9jcp4chmix5mm-nix-main-2.36.0pre.drv
  /nix/store/izrx0kx6xpz9vnd08252r3v29d4dhdpq-nix-store-c-2.36.0pre.drv
  /nix/store/nhbgs282pcgsn9bb4cahkqim32nx5wzf-nix-expr-c-2.36.0pre.drv
  /nix/store/iybsh4625zzn2bks4xmfi3fi3qcbk7s0-nix-fetchers-c-2.36.0pre.drv
  /nix/store/m3fizf5l4aj6zaz2yx9aii8iz7gkx0zb-nix-flake-2.36.0pre.drv
  /nix/store/m0y1yjmhv9r3k9b6fafxd99mllc7iwnj-nix-cmd-2.36.0pre.drv
  /nix/store/nwnipbsnlsv9r9xcl76kq2x2wlnzgrh2-nix-main-c-2.36.0pre.drv
  /nix/store/zs8arjwbyzpsaxc6gls7yyn9fv62vcl7-nix-flake-c-2.36.0pre.drv
  /nix/store/5lbnzz6w2rv1i0lnwbh4igl1b20a86m1-nix-2.36.0pre20260913_01dbefe.drv
  /nix/store/q2fvnm0ywg0ysn2m7dvgcicxgy27lxiy-nix-functional-tests-2.36.0pre20260913_01dbefe.drv
error: Cannot build '/nix/store/q2fvnm0ywg0ysn2m7dvgcicxgy27lxiy-nix-functional-tests-2.36.0pre20260913_01dbefe.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/b1nv3976qhzcqq433sdm56cw9lw3jcar-nix-functional-tests-2.36.0pre20260913_01dbefe
       Last 25 log lines:
       > 209/223 local-overlay-store - nix-functional-tests:add-lower                OK              1.26s
       > 210/223 main - nix-functional-tests:timeout                                 OK              6.71s
       > 211/223 flakes - nix-functional-tests:non-flake-inputs                      OK              2.36s
       > 212/223 local-overlay-store - nix-functional-tests:delete-duplicate         OK              1.53s
       > 213/223 local-overlay-store - nix-functional-tests:build                    OK              2.06s
       > 214/223 local-overlay-store - nix-functional-tests:check-post-init          OK              2.14s
       > 215/223 local-overlay-store - nix-functional-tests:verify                   OK              2.81s
       > 216/223 local-overlay-store - nix-functional-tests:optimise                 OK              3.05s
       > 217/223 local-overlay-store - nix-functional-tests:gc                       OK              3.48s
       > 218/223 local-overlay-store - nix-functional-tests:delete-refs              OK              3.68s
       > 219/223 git-hashing - nix-functional-tests:fixed                            OK              4.74s
       > 220/223 flakes - nix-functional-tests:flakes                                OK              7.45s
       > 221/223 local-overlay-store - nix-functional-tests:stale-file-handle        OK              4.97s
       > 222/223 flakes - nix-functional-tests:mercurial                             OK             10.50s
       > 223/223 main - nix-functional-tests:lang                                    OK             21.82s
       >
       > Summary of Failures:
       >
       >  49/223 main - nix-functional-tests:impure-derivations                      FAIL            0.56s   exit status 1
       >
       > Ok:                214
       > Fail:              1
       > Skipped:           8
       >
       > Full log written to /build/source/tests/functional/build/meson-logs/testlog.txt
       For full logs, run:
         nix log /nix/store/q2fvnm0ywg0ysn2m7dvgcicxgy27lxiy-nix-functional-tests-2.36.0pre20260913_01dbefe.drv