these 3 derivations will be built:
  /nix/store/4888nap6h6888z8k3p47r1ksps2cyppd-source.drv
  /nix/store/7xadd787gfdz9mkggqynxmp819dhldqp-harmonia-deps-3.3.0.drv
  /nix/store/cjnq7cd29f8yc257kc6l0gll7c5b752y-harmonia-llvm-cov-3.3.0.drv
error: Cannot build '/nix/store/cjnq7cd29f8yc257kc6l0gll7c5b752y-harmonia-llvm-cov-3.3.0.drv'.
       Reason: builder failed with exit code 100.
       Output paths:
         /nix/store/1pc7vmw2jmh0nr2vsy9ijk1sc1wzmip1-harmonia-llvm-cov-3.3.0
       Last 25 log lines:
       >         PASS [  23.995s] (2301/2500) harmonia-store-gc::integration gc_drops_partial_temp_root
       >         PASS [  24.067s] (2302/2500) harmonia-store-gc::integration gc_keeps_indirect_auto_root
       >         PASS [  24.069s] (2303/2500) harmonia-store-gc::integration gc_handles_self_references
       >         PASS [  24.073s] (2304/2500) harmonia-store-gc::integration gc_keeps_runtime_roots_from_environ
       >         PASS [  24.140s] (2305/2500) harmonia-store-gc::integration gc_does_not_hang_on_tmp_fifo
       >         PASS [  24.139s] (2306/2500) harmonia-store-gc::integration gc_keeps_unknown_path_registered_after_snapshot
       >         PASS [  24.164s] (2307/2500) harmonia-store-gc::integration gc_keep_recent_pins_recently_registered
       >         PASS [  24.185s] (2308/2500) harmonia-store-gc::integration gc_keeps_lock_file_of_active_build
       >         PASS [  24.218s] (2309/2500) harmonia-store-gc::integration gc_deletes_unreferenced_paths
       >         PASS [  24.266s] (2310/2500) harmonia-store-gc::integration gc_keeps_runtime_roots_from_open_fd
       >         PASS [  24.280s] (2311/2500) harmonia-store-gc::integration gc_max_freed_referrer_never_outlives_reference
       >         PASS [  24.356s] (2312/2500) harmonia-store-gc::integration gc_keeps_ca_deriver_via_deriver_field_not_build_trace
       >         PASS [  24.370s] (2313/2500) harmonia-store-gc::integration gc_keeps_transitive_closure
       >         PASS [  24.329s] (2314/2500) harmonia-store-gc::integration gc_rebases_canonical_runtime_roots_to_logical_store
       >         PASS [  24.949s] (2315/2500) harmonia-store-gc::integration gc_removes_unknown_disk_entries
       >         PASS [  25.051s] (2316/2500) harmonia-store-gc::integration gc_cleans_unused_links_only_when_not_dry_run
       >         PASS [  25.060s] (2317/2500) harmonia-store-gc::integration gc_deletes_non_utf8_store_entry
       >         PASS [  28.026s] (2318/2500) harmonia-file-nar archive::restorer::proptests::proptest_restore_dump
       >         PASS [  33.988s] (2319/2500) harmonia-store-gc::integration gc_vacuums_db_after_mass_deletion
       >         PASS [  53.025s] (2320/2500) harmonia-protocol wire_roundtrip::roundtrip_query_missing_result
       > ────────────
       >      Summary [  56.447s] 2320/2500 tests run: 2319 passed (31 leaky), 1 failed, 0 skipped
       >         FAIL [   0.524s] (2129/2500) harmonia-store-gc gc_socket::tests::cancelled_protect_is_not_acked
       > warning: 180/2500 tests were not run due to test failure (run with --no-fail-fast to run all tests, or run with --max-fail)
       > error: test run failed
       For full logs, run:
         nix log /nix/store/cjnq7cd29f8yc257kc6l0gll7c5b752y-harmonia-llvm-cov-3.3.0.drv