this derivation will be built:
  /nix/store/fnc9fpd1lbsznjr847vcm144m30phhvy-harmonia-llvm-cov-3.2.0.drv
error: Cannot build '/nix/store/fnc9fpd1lbsznjr847vcm144m30phhvy-harmonia-llvm-cov-3.2.0.drv'.
       Reason: builder failed with exit code 100.
       Output paths:
         /nix/store/lh7bfqvm6vjzqljljfby0k2b7r4hi9yd-harmonia-llvm-cov-3.2.0
       Last 25 log lines:
       >         FAIL [   1.835s] (2300/2375) harmonia-store-gc::integration gc_removes_unlocked_tmp_dir
       >         FAIL [   1.853s] (2301/2375) harmonia-store-gc::integration gc_keeps_ca_deriver_via_deriver_field_not_build_trace
       >         FAIL [   1.852s] (2302/2375) harmonia-store-gc::integration gc_removes_unknown_disk_entries
       >         FAIL [   1.890s] (2305/2375) harmonia-store-gc::integration gc_does_not_hang_on_tmp_fifo
       >         FAIL [   1.886s] (2306/2375) harmonia-store-gc::integration gc_keeps_runtime_roots_from_open_fd
       >         FAIL [   1.885s] (2307/2375) harmonia-store-gc::integration gc_removes_dangling_auto_root
       >         FAIL [   1.900s] (2308/2375) harmonia-store-gc::integration gc_drops_partial_temp_root
       >         FAIL [   1.898s] (2309/2375) harmonia-store-gc::integration gc_keeps_deriver_of_alive_path
       >         FAIL [   1.906s] (2310/2375) harmonia-store-gc::integration gc_keeps_indirect_auto_root
       >         FAIL [   1.922s] (2312/2375) harmonia-store-gc::integration gc_keeps_ca_outputs_of_alive_drv
       >         FAIL [   1.919s] (2313/2375) harmonia-store-gc::integration gc_scans_roots_despite_unfollowable_indirect_target
       >         FAIL [   1.920s] (2314/2375) harmonia-store-gc::integration gc_store_dir_trailing_slash_is_normalized
       >         FAIL [   2.051s] (2315/2375) harmonia-store-gc::integration gc_deletes_drv_when_output_deriver_is_unset
       >         FAIL [   2.051s] (2316/2375) harmonia-store-gc::integration gc_ignores_invalid_store_basenames
       >         FAIL [   2.092s] (2318/2375) harmonia-store-gc::integration gc_keeps_ca_output_via_build_trace
       >         FAIL [   2.153s] (2319/2375) harmonia-store-gc::integration gc_socket_serves_before_graph_load_and_keeps_early_roots
       >         FAIL [   2.298s] (2321/2375) harmonia-store-gc::integration gc_chunk_size_one_deletes_whole_dead_chain
       >         FAIL [   2.316s] (2322/2375) harmonia-store-gc::integration gc_max_freed_batches_by_estimated_size
       >         FAIL [   2.365s] (2323/2375) harmonia-store-gc::integration gc_deletes_unreferenced_paths
       >         FAIL [   2.520s] (2324/2375) harmonia-store-gc::integration gc_rebases_canonical_runtime_roots_to_logical_store
       >         FAIL [   2.814s] (2326/2375) harmonia-store-gc::integration gc_runtime_roots_validated_against_db
       >         FAIL [   2.925s] (2328/2375) harmonia-store-gc::integration gc_skips_locked_tmp_dir
       >         FAIL [   3.276s] (2330/2375) harmonia-store-gc::integration gc_keeps_temp_root_not_yet_in_db
       > warning: 34/2375 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/fnc9fpd1lbsznjr847vcm144m30phhvy-harmonia-llvm-cov-3.2.0.drv