this derivation will be built:
  /nix/store/bccvzg56cz913nfynrkj7hsvs06g02x2-acl2-8.5.drv
error: build of '/nix/store/bccvzg56cz913nfynrkj7hsvs06g02x2-acl2-8.5.drv' on 'grpc://farm.numtide.com:50051?client-cert=/run/secrets/vars/per-machine/bld1/nix-farm-ci/crt&client-key=/run/secrets/vars/per-machine/bld1/nix-farm-ci/key&connect-timeout=22&system=aarch64-linux' failed: Cannot build '/nix/store/bccvzg56cz913nfynrkj7hsvs06g02x2-acl2-8.5.drv'.
       Reason: builder failed with exit code 2.
       Output paths:
         /nix/store/p904gdkh45lgfwimybi61nx2yia6jznz-acl2-8.5
       Last 25 log lines:
       > Built /nix/store/p904gdkh45lgfwimybi61nx2yia6jznz-acl2-8.5/share/acl2/books/centaur/vl/lint/suppress-files.cert (29.477s) at 13-Oct-2026 18:31:16.439
       > Built /nix/store/p904gdkh45lgfwimybi61nx2yia6jznz-acl2-8.5/share/acl2/books/centaur/vl/mlib/modname-sets.cert (31.050s) at 13-Oct-2026 18:31:21.191
       > Built /nix/store/p904gdkh45lgfwimybi61nx2yia6jznz-acl2-8.5/share/acl2/books/centaur/vl/mlib/atts.cert (24.950s) at 13-Oct-2026 18:31:22.808
       > Built /nix/store/p904gdkh45lgfwimybi61nx2yia6jznz-acl2-8.5/share/acl2/books/centaur/vl/mlib/relocate.cert (31.833s) at 13-Oct-2026 18:31:31.184
       > Built /nix/store/p904gdkh45lgfwimybi61nx2yia6jznz-acl2-8.5/share/acl2/books/projects/apply-model-2/ex2/doppelgangers.cert (243.835s) at 13-Oct-2026 18:31:33.482
       > Making /nix/store/p904gdkh45lgfwimybi61nx2yia6jznz-acl2-8.5/share/acl2/books/projects/apply-model-2/ex2/defattach-demo.cert on 13-Oct-2026 18:31:33.516
       > Making /nix/store/p904gdkh45lgfwimybi61nx2yia6jznz-acl2-8.5/share/acl2/books/projects/apply-model-2/ex2/evaluation-apply.cert on 13-Oct-2026 18:31:33.519
       > Built /nix/store/p904gdkh45lgfwimybi61nx2yia6jznz-acl2-8.5/share/acl2/books/centaur/vl/kit/zipfile.cert (43.676s) at 13-Oct-2026 18:31:34.534
       > Built /nix/store/p904gdkh45lgfwimybi61nx2yia6jznz-acl2-8.5/share/acl2/books/centaur/vl/loader/parser/tests/base.cert (43.596s) at 13-Oct-2026 18:31:36.420
       > Built /nix/store/p904gdkh45lgfwimybi61nx2yia6jznz-acl2-8.5/share/acl2/books/projects/apply-model-2/ex2/defattach-demo.cert (3.959s) at 13-Oct-2026 18:31:37.480
       > Built /nix/store/p904gdkh45lgfwimybi61nx2yia6jznz-acl2-8.5/share/acl2/books/centaur/vl/lint/suppress-warnings.cert (55.567s) at 13-Oct-2026 18:31:42.516
       > Built /nix/store/p904gdkh45lgfwimybi61nx2yia6jznz-acl2-8.5/share/acl2/books/projects/apply-model-2/ex2/evaluation-apply.cert (12.873s) at 13-Oct-2026 18:31:46.410
       > Making /nix/store/p904gdkh45lgfwimybi61nx2yia6jznz-acl2-8.5/share/acl2/books/projects/apply-model-2/ex2/evaluation-user-defs.cert on 13-Oct-2026 18:31:46.443
       > Built /nix/store/p904gdkh45lgfwimybi61nx2yia6jznz-acl2-8.5/share/acl2/books/centaur/vl/mlib/filter.cert (124.850s) at 13-Oct-2026 18:31:47.752
       > Built /nix/store/p904gdkh45lgfwimybi61nx2yia6jznz-acl2-8.5/share/acl2/books/projects/apply-model-2/ex2/evaluation-user-defs.cert (7.190s) at 13-Oct-2026 18:31:53.640
       > Making /nix/store/p904gdkh45lgfwimybi61nx2yia6jznz-acl2-8.5/share/acl2/books/projects/apply-model-2/ex2/evaluation-lemmas.cert on 13-Oct-2026 18:31:53.676
       > Built /nix/store/p904gdkh45lgfwimybi61nx2yia6jznz-acl2-8.5/share/acl2/books/projects/dpss/Collins/level-1-initial-synchronization.cert (257.361s) at 13-Oct-2026 18:32:14.880
       > Built /nix/store/p904gdkh45lgfwimybi61nx2yia6jznz-acl2-8.5/share/acl2/books/projects/apply-model/ex2/evaluation-lemmas.cert (263.238s) at 13-Oct-2026 18:34:48.087
       > Making /nix/store/p904gdkh45lgfwimybi61nx2yia6jznz-acl2-8.5/share/acl2/books/projects/apply-model/ex2/all-warrants-valid.cert on 13-Oct-2026 18:34:48.119
       > Built /nix/store/p904gdkh45lgfwimybi61nx2yia6jznz-acl2-8.5/share/acl2/books/projects/apply-model/ex2/all-warrants-valid.cert (1.904s) at 13-Oct-2026 18:34:50.029
       > make[1]: Leaving directory '/nix/store/p904gdkh45lgfwimybi61nx2yia6jznz-acl2-8.5/share/acl2/books/projects/apply-model'
       > Built /nix/store/p904gdkh45lgfwimybi61nx2yia6jznz-acl2-8.5/share/acl2/books/projects/apply-model-2/ex2/evaluation-lemmas.cert (319.089s) at 13-Oct-2026 18:37:12.771
       > Making /nix/store/p904gdkh45lgfwimybi61nx2yia6jznz-acl2-8.5/share/acl2/books/projects/apply-model-2/ex2/all-warrants-valid.cert on 13-Oct-2026 18:37:12.809
       > Built /nix/store/p904gdkh45lgfwimybi61nx2yia6jznz-acl2-8.5/share/acl2/books/projects/apply-model-2/ex2/all-warrants-valid.cert (1.829s) at 13-Oct-2026 18:37:14.643
       > make[1]: Leaving directory '/nix/store/p904gdkh45lgfwimybi61nx2yia6jznz-acl2-8.5/share/acl2/books/projects/apply-model-2'
       For full logs, run:
         nix log /nix/store/bccvzg56cz913nfynrkj7hsvs06g02x2-acl2-8.5.drv
error: Cannot build '/nix/store/bccvzg56cz913nfynrkj7hsvs06g02x2-acl2-8.5.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/p904gdkh45lgfwimybi61nx2yia6jznz-acl2-8.5