this derivation will be built:
  /nix/store/gmlrjh5yggl3813gslma99qmsr65y2lv-iets-nextest-0.1.0.drv
error: Cannot build '/nix/store/gmlrjh5yggl3813gslma99qmsr65y2lv-iets-nextest-0.1.0.drv'.
       Reason: builder failed with exit code 100.
       Output paths:
         /nix/store/2xkabxcpg2pasigkam6749yknrfgm517-iets-nextest-0.1.0
       Last 25 log lines:
       >         PASS [   1.650s] (534/601) iets eval::tests::arithmetic_and_strings
       >         PASS [   0.323s] (535/601) iets syntax::tests::lang_corpus
       >         PASS [   0.656s] (536/601) iets session::tests::a_value_used_after_release_is_loud
       >         PASS [   0.302s] (537/601) iets trace::tests::dedupe_of_many_repeats_is_linear
       >         PASS [   2.060s] (538/601) iets builtins::fetch::tests::a_read_that_is_not_a_selection_has_no_site
       >         PASS [   0.938s] (539/601) iets parallel::thunk::tests::many_fibers_force_one_shared_graph
       >         PASS [   2.094s] (540/601) iets builtins::fetch::tests::the_tree_decides_the_level
       >         PASS [   2.101s] (541/601) iets builtins::fetch::tests::a_read_of_the_count_is_one_finding_for_each_tree
       >         PASS [   0.358s] (542/601) iets::cache_hygiene a_killed_writer_leaves_the_store_usable
       >         PASS [   1.795s] (543/601) iets eval::tests::laziness_and_recursion
       >         PASS [   2.231s] (544/601) iets api::run::tests::the_counters_cover_the_helper_fibers
       >         PASS [   2.232s] (545/601) iets api::value::tests::scalars
       >         PASS [   0.918s] (546/601) iets session::tests::a_released_session_leaves_the_other_alone
       >         PASS [   2.102s] (547/601) iets eval::tests::attrs_and_lists
       >         PASS [   1.900s] (548/601) iets runtime::value::alloc_tests::a_full_string_table_records_no_more_but_still_shares
       >         PASS [   4.689s] (549/601) iets api::run::tests::helper_fibers_read_the_ir_cache
       >         PASS [   4.810s] (550/601) iets builtins::fetch::tests::a_selection_of_the_count_is_the_site
       >         PASS [   8.753s] (551/601) iets eval::tests::pure_eval_answers_like_nix
       >         PASS [  22.895s] (552/601) iets syntax::tests::deep_nesting_ends_with_an_error
       >         PASS [  50.344s] (553/601) iets runtime::value::tests::union_iteration_merges_like_a_fold
       > ------------
       >      Summary [  51.688s] 553/601 tests run: 552 passed, 1 failed, 5 skipped
       >         FAIL [   0.039s] (506/601) iets trace::validate::tests::what_a_native_path_records_validates
       > warning: 48/601 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/gmlrjh5yggl3813gslma99qmsr65y2lv-iets-nextest-0.1.0.drv