Dec 14 18:15:02.898 INFO testing stream-combinators-0.1.0 against try#aa49d8ef14939ddec0e34b346b60174a5673d48f for pr-56550
Dec 14 18:15:02.898 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-5/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/pr-56550/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +aa49d8ef14939ddec0e34b346b60174a5673d48f-alt build --frozen" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 14 18:15:03.127 INFO [stdout] bdcc62e74b0c0042b57033bea7c139420fe04fee3ef33e0a13e60b59efd83c19
Dec 14 18:15:03.132 INFO running `"docker" "start" "-a" "bdcc62e74b0c0042b57033bea7c139420fe04fee3ef33e0a13e60b59efd83c19"`
Dec 14 18:15:03.698 INFO [stderr] usermod: no changes
Dec 14 18:15:03.819 INFO [stderr]    Compiling stream-combinators v0.1.0 (/source)
Dec 14 18:15:04.491 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.75s
Dec 14 18:15:04.495 INFO [stderr] su: No module specific data is present
Dec 14 18:15:05.052 INFO running `"docker" "inspect" "bdcc62e74b0c0042b57033bea7c139420fe04fee3ef33e0a13e60b59efd83c19"`
Dec 14 18:15:05.359 INFO running `"docker" "rm" "-f" "bdcc62e74b0c0042b57033bea7c139420fe04fee3ef33e0a13e60b59efd83c19"`
Dec 14 18:15:05.638 INFO [stdout] bdcc62e74b0c0042b57033bea7c139420fe04fee3ef33e0a13e60b59efd83c19
Dec 14 18:15:05.644 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-5/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/pr-56550/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +aa49d8ef14939ddec0e34b346b60174a5673d48f-alt test --frozen --no-run" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 14 18:15:06.052 INFO [stdout] 745f7432df8bc02c7cdfbb43a5e3f2adf7a26404253bd2db14903622a31539ed
Dec 14 18:15:06.055 INFO running `"docker" "start" "-a" "745f7432df8bc02c7cdfbb43a5e3f2adf7a26404253bd2db14903622a31539ed"`
Dec 14 18:15:07.251 INFO [stderr] usermod: no changes
Dec 14 18:15:07.371 INFO [stderr]    Compiling tokio-stdin v0.1.1
Dec 14 18:15:08.695 INFO [stderr]    Compiling stream-combinators v0.1.0 (/source)
Dec 14 18:15:09.648 INFO [stderr] warning: unnecessary parentheses around function argument
Dec 14 18:15:09.648 INFO [stderr]  --> examples/into_pairs.rs:9:41
Dec 14 18:15:09.648 INFO [stderr]   |
Dec 14 18:15:09.648 INFO [stderr] 9 |     let number_stream = iter_ok::<_,()>((0..6));
Dec 14 18:15:09.648 INFO [stderr]   |                                         ^^^^^^ help: remove these parentheses
Dec 14 18:15:09.648 INFO [stderr]   |
Dec 14 18:15:09.648 INFO [stderr]   = note: #[warn(unused_parens)] on by default
Dec 14 18:15:09.648 INFO [stderr] 
Dec 14 18:15:19.307 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.03s
Dec 14 18:15:19.314 INFO [stderr] su: No module specific data is present
Dec 14 18:15:19.677 INFO running `"docker" "inspect" "745f7432df8bc02c7cdfbb43a5e3f2adf7a26404253bd2db14903622a31539ed"`
Dec 14 18:15:19.937 INFO running `"docker" "rm" "-f" "745f7432df8bc02c7cdfbb43a5e3f2adf7a26404253bd2db14903622a31539ed"`
Dec 14 18:15:20.254 INFO [stdout] 745f7432df8bc02c7cdfbb43a5e3f2adf7a26404253bd2db14903622a31539ed