Dec 13 04:00:49.325 INFO testing sebasmagri/rust-concurrency-patterns against master#bd47d6825bf4090517549d33cfef10d3300b4a75 for pr-56550
Dec 13 04:00:49.325 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-0/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-56550/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/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 +bd47d6825bf4090517549d33cfef10d3300b4a75-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 13 04:00:49.866 INFO [stdout] 82793f0c5630b0d14f518d2c802ff473bcc341d4b74f9dc1782c0e35a6e9c6de
Dec 13 04:00:49.872 INFO running `"docker" "start" "-a" "82793f0c5630b0d14f518d2c802ff473bcc341d4b74f9dc1782c0e35a6e9c6de"`
Dec 13 04:00:51.307 INFO [stderr] usermod: no changes
Dec 13 04:00:51.383 INFO [stderr]    Compiling concurrency-patterns v0.1.0 (/source)
Dec 13 04:00:51.983 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.61s
Dec 13 04:00:51.983 INFO [stderr] su: No module specific data is present
Dec 13 04:00:52.637 INFO running `"docker" "inspect" "82793f0c5630b0d14f518d2c802ff473bcc341d4b74f9dc1782c0e35a6e9c6de"`
Dec 13 04:00:52.927 INFO running `"docker" "rm" "-f" "82793f0c5630b0d14f518d2c802ff473bcc341d4b74f9dc1782c0e35a6e9c6de"`
Dec 13 04:00:53.147 INFO [stdout] 82793f0c5630b0d14f518d2c802ff473bcc341d4b74f9dc1782c0e35a6e9c6de
Dec 13 04:00:53.155 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-0/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-56550/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/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 +bd47d6825bf4090517549d33cfef10d3300b4a75-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 13 04:00:53.674 INFO [stdout] d8b6c6e481f13dd58f7f429bb581726db56e8c24ffaa3fdbfe7b6517d876487f
Dec 13 04:00:53.676 INFO running `"docker" "start" "-a" "d8b6c6e481f13dd58f7f429bb581726db56e8c24ffaa3fdbfe7b6517d876487f"`
Dec 13 04:00:55.503 INFO [stderr] usermod: no changes
Dec 13 04:00:55.575 INFO [stderr]    Compiling concurrency-patterns v0.1.0 (/source)
Dec 13 04:00:56.739 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 13 04:00:56.739 INFO [stderr]   --> examples/04-fan-in.rs:32:5
Dec 13 04:00:56.739 INFO [stderr]    |
Dec 13 04:00:56.739 INFO [stderr] 32 |     consumer(Arc::new(Mutex::new(rx))).join();
Dec 13 04:00:56.739 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 04:00:56.739 INFO [stderr]    |
Dec 13 04:00:56.739 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 13 04:00:56.739 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 13 04:00:56.739 INFO [stderr] 
Dec 13 04:01:00.687 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.16s
Dec 13 04:01:00.691 INFO [stderr] su: No module specific data is present
Dec 13 04:01:01.411 INFO running `"docker" "inspect" "d8b6c6e481f13dd58f7f429bb581726db56e8c24ffaa3fdbfe7b6517d876487f"`
Dec 13 04:01:01.753 INFO running `"docker" "rm" "-f" "d8b6c6e481f13dd58f7f429bb581726db56e8c24ffaa3fdbfe7b6517d876487f"`
Dec 13 04:01:02.119 INFO [stdout] d8b6c6e481f13dd58f7f429bb581726db56e8c24ffaa3fdbfe7b6517d876487f
Dec 13 04:01:02.123 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-0/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-56550/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/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 +bd47d6825bf4090517549d33cfef10d3300b4a75-alt test --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 13 04:01:02.604 INFO [stdout] 4b9d5f13f3e1148c8da1cbdaa3fe67afbba5e05c879e099631bccf0aef9376a6
Dec 13 04:01:02.608 INFO running `"docker" "start" "-a" "4b9d5f13f3e1148c8da1cbdaa3fe67afbba5e05c879e099631bccf0aef9376a6"`
Dec 13 04:01:03.819 INFO [stderr] usermod: no changes
Dec 13 04:01:03.875 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
Dec 13 04:01:03.875 INFO [stderr]      Running /target/debug/deps/concurrency_patterns-5197facc6801e02b
Dec 13 04:01:03.890 INFO [stdout] 
Dec 13 04:01:03.890 INFO [stdout] running 0 tests
Dec 13 04:01:03.892 INFO [stdout] 
Dec 13 04:01:03.892 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 13 04:01:03.892 INFO [stdout] 
Dec 13 04:01:03.895 INFO [stderr] su: No module specific data is present
Dec 13 04:01:04.946 INFO running `"docker" "inspect" "4b9d5f13f3e1148c8da1cbdaa3fe67afbba5e05c879e099631bccf0aef9376a6"`
Dec 13 04:01:05.271 INFO running `"docker" "rm" "-f" "4b9d5f13f3e1148c8da1cbdaa3fe67afbba5e05c879e099631bccf0aef9376a6"`
Dec 13 04:01:05.597 INFO [stdout] 4b9d5f13f3e1148c8da1cbdaa3fe67afbba5e05c879e099631bccf0aef9376a6