these 5 derivations will be built:
  /nix/store/1ay5zaqq00n9v2bhivc5cqggzza8rcj4-Cargo.toml.drv
  /nix/store/6wdbxbbnpdj6iwqn8l18cd3g1w8qkn9i-Cargo.toml.drv
  /nix/store/ygnali77xgkf1nsngk8sisy3hfd6931m-source.drv
  /nix/store/d0zmm1dav8w66kz4krmmgg8k2j1y1kf7-harmonia-deps-3.2.0.drv
  /nix/store/8ahcby3va9vzk8kfij0hfvddka9r2fnk-harmonia-llvm-cov-3.2.0.drv
error: Cannot build '/nix/store/8ahcby3va9vzk8kfij0hfvddka9r2fnk-harmonia-llvm-cov-3.2.0.drv'.
       Reason: builder failed with exit code 100.
       Output paths:
         /nix/store/i4gbz3y8zmdwbvxp6iykf919vka66c05-harmonia-llvm-cov-3.2.0
       Last 25 log lines:
       >         FAIL [   1.941s] (2283/2375) harmonia-store-gc::integration gc_keeps_transitive_closure
       >         FAIL [   1.941s] (2284/2375) harmonia-store-gc::integration gc_removes_stale_temp_roots_file
       >         FAIL [   1.995s] (2285/2375) harmonia-store-gc::integration gc_handles_self_references
       >         FAIL [   1.975s] (2286/2375) harmonia-store-gc::integration gc_runtime_roots_validated_against_db
       >         FAIL [   2.056s] (2287/2375) harmonia-store-gc::integration gc_deletes_drv_when_output_deriver_is_unset
       >         FAIL [   2.086s] (2288/2375) harmonia-store-gc::integration gc_scans_roots_despite_unfollowable_indirect_target
       >         FAIL [   2.128s] (2290/2375) harmonia-store-gc::integration gc_keeps_runtime_roots_from_open_fd
       >         FAIL [   2.113s] (2291/2375) harmonia-store-gc::integration gc_skips_locked_tmp_dir
       >         FAIL [   2.147s] (2292/2375) harmonia-store-gc::integration gc_keeps_ca_deriver_via_deriver_field_not_build_trace
       >         FAIL [   2.175s] (2293/2375) harmonia-store-gc::integration gc_store_dir_trailing_slash_is_normalized
       >         FAIL [   2.202s] (2294/2375) harmonia-store-gc::integration gc_does_not_hang_on_tmp_fifo
       >         FAIL [   2.176s] (2295/2375) harmonia-store-gc::integration gc_socket_root_mid_gc_keeps_path_and_deletes_rest
       >         FAIL [   2.188s] (2297/2375) harmonia-store-gc::integration gc_socket_serves_before_graph_load_and_keeps_early_roots
       >         FAIL [   2.240s] (2298/2375) harmonia-store-gc::integration gc_max_freed_stops_early
       >         FAIL [   2.263s] (2299/2375) harmonia-store-gc::integration gc_keep_recent_pins_recently_registered
       >         FAIL [   2.274s] (2301/2375) harmonia-store-gc::integration gc_rebases_canonical_runtime_roots_to_logical_store
       >         FAIL [   2.305s] (2303/2375) harmonia-store-gc::integration gc_keeps_ca_output_via_build_trace
       >         FAIL [   2.316s] (2305/2375) harmonia-store-gc::integration gc_cleans_unused_links_only_when_not_dry_run
       >         FAIL [   2.514s] (2307/2375) harmonia-store-gc::integration gc_max_freed_referrer_never_outlives_reference
       >         FAIL [   3.245s] (2308/2375) harmonia-store-gc::integration gc_removes_reserved_space_file_and_creates_private_lock
       >         FAIL [   3.279s] (2309/2375) harmonia-store-gc::integration gc_keeps_temp_root_not_yet_in_db
       >         FAIL [   4.524s] (2313/2375) harmonia-store-gc::integration gc_ignores_invalid_store_basenames
       >         FAIL [   4.665s] (2316/2375) harmonia-store-gc::integration gc_empty_store_is_noop
       > warning: 50/2375 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/8ahcby3va9vzk8kfij0hfvddka9r2fnk-harmonia-llvm-cov-3.2.0.drv