Dec 06 21:22:50.957 INFO testing stream-combinators-0.1.0 against master#906deae0790bd18681b937fe9a141a3c26cf1855 for pr-56514
Dec 06 21:22:50.957 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-4/master#906deae0790bd18681b937fe9a141a3c26cf1855:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56514/master#906deae0790bd18681b937fe9a141a3c26cf1855:/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 +906deae0790bd18681b937fe9a141a3c26cf1855-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 06 21:22:51.277 INFO [stdout] 13eea2a7d2ab921a52e85ed32d18cfb40d56b74392e4dcf34a24636d316d92fa
Dec 06 21:22:51.279 INFO running `"docker" "start" "-a" "13eea2a7d2ab921a52e85ed32d18cfb40d56b74392e4dcf34a24636d316d92fa"`
Dec 06 21:22:52.743 INFO [stderr] usermod: no changes
Dec 06 21:22:52.852 INFO [stderr]    Compiling stream-combinators v0.1.0 (/source)
Dec 06 21:22:53.540 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.77s
Dec 06 21:22:53.553 INFO [stderr] su: No module specific data is present
Dec 06 21:22:54.056 INFO running `"docker" "inspect" "13eea2a7d2ab921a52e85ed32d18cfb40d56b74392e4dcf34a24636d316d92fa"`
Dec 06 21:22:54.327 INFO running `"docker" "rm" "-f" "13eea2a7d2ab921a52e85ed32d18cfb40d56b74392e4dcf34a24636d316d92fa"`
Dec 06 21:22:54.589 INFO [stdout] 13eea2a7d2ab921a52e85ed32d18cfb40d56b74392e4dcf34a24636d316d92fa
Dec 06 21:22:54.591 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-4/master#906deae0790bd18681b937fe9a141a3c26cf1855:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56514/master#906deae0790bd18681b937fe9a141a3c26cf1855:/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 +906deae0790bd18681b937fe9a141a3c26cf1855-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 06 21:22:54.912 INFO [stdout] 10942386e4810e859dc9e7bb79faf248848bc22853ab500321246f5e02c82050
Dec 06 21:22:54.920 INFO running `"docker" "start" "-a" "10942386e4810e859dc9e7bb79faf248848bc22853ab500321246f5e02c82050"`
Dec 06 21:22:55.989 INFO [stderr] usermod: no changes
Dec 06 21:22:56.232 INFO [stderr]    Compiling tokio-stdin v0.1.1
Dec 06 21:22:57.536 INFO [stderr]    Compiling stream-combinators v0.1.0 (/source)
Dec 06 21:22:58.980 INFO [stderr] warning: unnecessary parentheses around function argument
Dec 06 21:22:58.980 INFO [stderr]  --> examples/into_pairs.rs:9:41
Dec 06 21:22:58.980 INFO [stderr]   |
Dec 06 21:22:58.980 INFO [stderr] 9 |     let number_stream = iter_ok::<_,()>((0..6));
Dec 06 21:22:58.980 INFO [stderr]   |                                         ^^^^^^ help: remove these parentheses
Dec 06 21:22:58.980 INFO [stderr]   |
Dec 06 21:22:58.980 INFO [stderr]   = note: #[warn(unused_parens)] on by default
Dec 06 21:22:58.980 INFO [stderr] 
Dec 06 21:23:07.553 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.53s
Dec 06 21:23:07.578 INFO [stderr] su: No module specific data is present
Dec 06 21:23:08.496 INFO running `"docker" "inspect" "10942386e4810e859dc9e7bb79faf248848bc22853ab500321246f5e02c82050"`
Dec 06 21:23:08.764 INFO running `"docker" "rm" "-f" "10942386e4810e859dc9e7bb79faf248848bc22853ab500321246f5e02c82050"`
Dec 06 21:23:09.116 INFO [stdout] 10942386e4810e859dc9e7bb79faf248848bc22853ab500321246f5e02c82050