this derivation will be built:
  /nix/store/s4pl6j06gj2cpypg2idm7mmmax402wan-iets-test-0.1.0.drv
error: Cannot build '/nix/store/s4pl6j06gj2cpypg2idm7mmmax402wan-iets-test-0.1.0.drv'.
       Reason: builder failed with exit code 101.
       Output paths:
         /nix/store/hds1f696cpp5lg61qrnqn8qkki71a3bq-iets-test-0.1.0
       Last 25 log lines:
       > ---- fetch::http::tests::a_transient_status_is_retried stdout ----
       >
       > thread 'fetch::http::tests::a_transient_status_is_retried' (5385) panicked at src/fetch/http.rs:1014:57:
       > called `Result::unwrap()` on an `Err` value: Usage("cannot fetch 'http://127.0.0.1:33343/': no response (stalled-download-timeout)")
       >
       > ---- fetch::http::tests::credentials_stay_on_the_first_origin stdout ----
       >
       > thread 'fetch::http::tests::credentials_stay_on_the_first_origin' (5387) panicked at src/fetch/http.rs:889:59:
       > called `Result::unwrap()` on an `Err` value: Usage("cannot fetch 'http://127.0.0.1:46457/': no response (stalled-download-timeout)")
       >
       > ---- fetch::http::tests::credentials_in_the_url_are_sent_and_never_printed stdout ----
       >
       > thread 'fetch::http::tests::credentials_in_the_url_are_sent_and_never_printed' (5386) panicked at src/fetch/http.rs:986:57:
       > called `Result::unwrap()` on an `Err` value: Usage("cannot fetch 'http://user:***@127.0.0.1:45635/x': no response (stalled-download-timeout)")
       > note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace
       >
       >
       > failures:
       >     fetch::http::tests::a_transient_status_is_retried
       >     fetch::http::tests::credentials_in_the_url_are_sent_and_never_printed
       >     fetch::http::tests::credentials_stay_on_the_first_origin
       >
       > test result: FAILED. 446 passed; 3 failed; 5 ignored; 0 measured; 0 filtered out; finished in 89.40s
       >
       > error: test failed, to rerun pass `--lib`
       For full logs, run:
         nix log /nix/store/s4pl6j06gj2cpypg2idm7mmmax402wan-iets-test-0.1.0.drv