this derivation will be built:
  /nix/store/36w6spzfkfi8dwfq6apfbrif1xbj1dah-horae-tests-0.1.0.drv
error: build of '/nix/store/36w6spzfkfi8dwfq6apfbrif1xbj1dah-horae-tests-0.1.0.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=21&system=aarch64-darwin' failed: Cannot build '/nix/store/36w6spzfkfi8dwfq6apfbrif1xbj1dah-horae-tests-0.1.0.drv'.
       Reason: builder failed with exit code 101.
       Output paths:
         /nix/store/zy5gqkgszq674rw2vx4lrbfczyfih9sg-horae-tests-0.1.0
       Last 25 log lines:
       > test server_fns::users::tests::hide_rates_clears_both_rate_fields ... ok
       > test server_fns::time_entries::update_tests::revoked_grant_does_not_trap_an_own_running_timer ... ok
       > test server_fns::users::tests::concurrency::concurrent_demotions_keep_an_active_admin ... ok
       > test server_fns::time_entries::update_tests::task_grants_allow_tracking_and_archived_history_for_every_role ... ok
       > test server_fns::time_entries::update_tests::revoked_timer_stop_preserves_the_open_state_guard ... ok
       > test server_fns::users::tests::concurrency::deactivation_and_demotion_keep_an_active_admin ... ok
       > test server_fns::users::tests::concurrency::the_last_admin_cannot_be_demoted_or_deactivated ... ok
       > test server_fns::users::tests::concurrency::demotion_and_deactivation_keep_an_active_admin ... ok
       > test server_fns::users::tests::concurrency::unchanged_admin_access_is_allowed ... ok
       >
       > failures:
       >
       > ---- notifications::tests::sendmail_timeout_kills_and_reaps_the_child stdout ----
       >
       > thread 'notifications::tests::sendmail_timeout_kills_and_reaps_the_child' (90902501) panicked at crates/horae/src/notifications/tests.rs:35:80:
       > called `Result::unwrap()` on an `Err` value: Os { code: 2, kind: NotFound, message: "No such file or directory" }
       > note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace
       >
       >
       > failures:
       >     notifications::tests::sendmail_timeout_kills_and_reaps_the_child
       >
       > test result: FAILED. 829 passed; 1 failed; 10 ignored; 0 measured; 0 filtered out; finished in 86.89s
       >
       > error: test failed, to rerun pass `-p horae --bin horae`
       For full logs, run:
         nix log /nix/store/36w6spzfkfi8dwfq6apfbrif1xbj1dah-horae-tests-0.1.0.drv
error: Cannot build '/nix/store/36w6spzfkfi8dwfq6apfbrif1xbj1dah-horae-tests-0.1.0.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/zy5gqkgszq674rw2vx4lrbfczyfih9sg-horae-tests-0.1.0