this derivation will be built:
  /nix/store/jgn5pa7d0v5w3hwnkzgl21hrs64swxc6-harmonia-llvm-cov-3.2.0.drv
error: Cannot build '/nix/store/jgn5pa7d0v5w3hwnkzgl21hrs64swxc6-harmonia-llvm-cov-3.2.0.drv'.
       Reason: builder failed with exit code 100.
       Output paths:
         /nix/store/s50yymaxf7y54sq1fl36nf42b24wmj5w-harmonia-llvm-cov-3.2.0
       Last 25 log lines:
       >         FAIL [   2.502s] (2171/2376) harmonia-store-gc::integration gc_keep_recent_pins_recently_registered
       >         FAIL [   2.504s] (2172/2376) harmonia-store-gc::integration gc_max_freed_referrer_never_outlives_reference
       >         FAIL [   2.503s] (2173/2376) harmonia-store-gc::integration gc_removes_reserved_space_file_and_creates_private_lock
       >         FAIL [   2.526s] (2174/2376) harmonia-store-gc::integration gc_deletes_drv_when_output_deriver_is_unset
       >         FAIL [   2.620s] (2175/2376) harmonia-store-gc gc_socket::stress_tests::concurrent_clients_never_resurrect_deleted_paths
       >         FAIL [   2.639s] (2176/2376) harmonia-store-gc::integration gc_keeps_indirect_auto_root
       >         FAIL [   2.661s] (2177/2376) harmonia-store-gc::integration gc_does_not_hang_on_tmp_fifo
       >         FAIL [   2.702s] (2179/2376) harmonia-store-gc::integration gc_removes_unknown_disk_entries
       >         FAIL [   2.778s] (2180/2376) harmonia-store-gc::integration gc_rebases_canonical_runtime_roots_to_logical_store
       >         FAIL [   2.909s] (2181/2376) harmonia-store-gc::integration gc_chunk_size_one_deletes_whole_dead_chain
       >         FAIL [   2.909s] (2182/2376) harmonia-store-gc::integration gc_keeps_ca_outputs_of_alive_drv
       >         FAIL [   2.914s] (2183/2376) harmonia-store-gc::integration gc_cleans_unused_links_only_when_not_dry_run
       >         FAIL [   2.939s] (2184/2376) harmonia-store-gc::integration gc_empty_store_is_noop
       >         FAIL [   2.993s] (2188/2376) harmonia-store-gc::integration gc_socket_serves_before_graph_load_and_keeps_early_roots
       >         FAIL [   2.997s] (2189/2376) harmonia-store-gc::integration gc_keeps_runtime_roots_from_environ
       >         FAIL [   3.003s] (2191/2376) harmonia-store-gc::integration gc_keeps_lock_file_of_active_build
       >         FAIL [   3.031s] (2192/2376) harmonia-store-gc::integration gc_deletes_readonly_paths
       >         FAIL [   3.052s] (2193/2376) harmonia-store-gc::integration gc_deletes_unreferenced_paths
       >         FAIL [   3.066s] (2194/2376) harmonia-store-gc::integration gc_keeps_unknown_path_registered_after_snapshot
       >         FAIL [   3.316s] (2196/2376) harmonia-store-gc::integration gc_store_dir_trailing_slash_is_normalized
       >         FAIL [   3.430s] (2198/2376) harmonia-store-gc::integration gc_keeps_runtime_roots_from_open_fd
       >         FAIL [   3.444s] (2199/2376) harmonia-store-gc::integration gc_removes_unlocked_tmp_dir
       >         FAIL [   4.633s] (2201/2376) harmonia-store-gc::integration gc_removes_stale_temp_roots_file
       > warning: 166/2376 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/jgn5pa7d0v5w3hwnkzgl21hrs64swxc6-harmonia-llvm-cov-3.2.0.drv