Dec 11 10:24:51.812 INFO checking rwalters/concur_example against try#aa9aa79c3c583aab59ac9134542d60a780c35e2e for pr-56677
Dec 11 10:24:51.812 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-1/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/pr-56677/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/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 +aa9aa79c3c583aab59ac9134542d60a780c35e2e-alt check --frozen --all --all-targets" "-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 11 10:24:51.946 INFO [stdout] 6c42ca638463e40acab67bd103d4e9b97640c8a961d7f583c0aa1e7313c6a49d
Dec 11 10:24:51.946 INFO running `"docker" "start" "-a" "6c42ca638463e40acab67bd103d4e9b97640c8a961d7f583c0aa1e7313c6a49d"`
Dec 11 10:24:52.340 INFO [stderr] usermod: no changes
Dec 11 10:24:52.365 INFO [stderr]     Checking concur_example v0.1.0 (/source)
Dec 11 10:24:52.546 INFO [stderr] warning: use of deprecated item 'std::thread::sleep_ms': replaced by `std::thread::sleep`
Dec 11 10:24:52.547 INFO [stderr]   --> src/main.rs:24:5
Dec 11 10:24:52.547 INFO [stderr]    |
Dec 11 10:24:52.547 INFO [stderr] 24 |     thread::sleep_ms(50);
Dec 11 10:24:52.547 INFO [stderr]    |     ^^^^^^^^^^^^^^^^
Dec 11 10:24:52.547 INFO [stderr]    |
Dec 11 10:24:52.547 INFO [stderr]    = note: #[warn(deprecated)] on by default
Dec 11 10:24:52.547 INFO [stderr] 
Dec 11 10:24:52.576 INFO [stderr] warning: use of deprecated item 'std::thread::sleep_ms': replaced by `std::thread::sleep`
Dec 11 10:24:52.576 INFO [stderr]   --> src/main.rs:24:5
Dec 11 10:24:52.576 INFO [stderr]    |
Dec 11 10:24:52.576 INFO [stderr] 24 |     thread::sleep_ms(50);
Dec 11 10:24:52.576 INFO [stderr]    |     ^^^^^^^^^^^^^^^^
Dec 11 10:24:52.576 INFO [stderr]    |
Dec 11 10:24:52.576 INFO [stderr]    = note: #[warn(deprecated)] on by default
Dec 11 10:24:52.576 INFO [stderr] 
Dec 11 10:24:52.592 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 10:24:52.592 INFO [stderr]   --> src/main.rs:40:13
Dec 11 10:24:52.592 INFO [stderr]    |
Dec 11 10:24:52.592 INFO [stderr] 40 |             tx.send(());
Dec 11 10:24:52.592 INFO [stderr]    |             ^^^^^^^^^^^^
Dec 11 10:24:52.592 INFO [stderr]    |
Dec 11 10:24:52.592 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 11 10:24:52.592 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 10:24:52.592 INFO [stderr] 
Dec 11 10:24:52.592 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 10:24:52.592 INFO [stderr]   --> src/main.rs:46:9
Dec 11 10:24:52.592 INFO [stderr]    |
Dec 11 10:24:52.592 INFO [stderr] 46 |         rx.recv();
Dec 11 10:24:52.592 INFO [stderr]    |         ^^^^^^^^^^
Dec 11 10:24:52.592 INFO [stderr]    |
Dec 11 10:24:52.592 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 10:24:52.592 INFO [stderr] 
Dec 11 10:24:52.592 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 10:24:52.592 INFO [stderr]   --> src/main.rs:55:13
Dec 11 10:24:52.592 INFO [stderr]    |
Dec 11 10:24:52.592 INFO [stderr] 55 |             tx.send(i);
Dec 11 10:24:52.592 INFO [stderr]    |             ^^^^^^^^^^^
Dec 11 10:24:52.592 INFO [stderr]    |
Dec 11 10:24:52.593 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 10:24:52.593 INFO [stderr] 
Dec 11 10:24:52.625 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 10:24:52.625 INFO [stderr]   --> src/main.rs:40:13
Dec 11 10:24:52.625 INFO [stderr]    |
Dec 11 10:24:52.625 INFO [stderr] 40 |             tx.send(());
Dec 11 10:24:52.625 INFO [stderr]    |             ^^^^^^^^^^^^
Dec 11 10:24:52.625 INFO [stderr]    |
Dec 11 10:24:52.625 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 11 10:24:52.625 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 10:24:52.625 INFO [stderr] 
Dec 11 10:24:52.625 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 10:24:52.625 INFO [stderr]   --> src/main.rs:46:9
Dec 11 10:24:52.625 INFO [stderr]    |
Dec 11 10:24:52.625 INFO [stderr] 46 |         rx.recv();
Dec 11 10:24:52.625 INFO [stderr]    |         ^^^^^^^^^^
Dec 11 10:24:52.625 INFO [stderr]    |
Dec 11 10:24:52.625 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 10:24:52.625 INFO [stderr] 
Dec 11 10:24:52.625 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 10:24:52.625 INFO [stderr]   --> src/main.rs:55:13
Dec 11 10:24:52.625 INFO [stderr]    |
Dec 11 10:24:52.625 INFO [stderr] 55 |             tx.send(i);
Dec 11 10:24:52.625 INFO [stderr]    |             ^^^^^^^^^^^
Dec 11 10:24:52.648 INFO [stderr]    |
Dec 11 10:24:52.648 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 10:24:52.648 INFO [stderr] 
Dec 11 10:24:52.652 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.29s
Dec 11 10:24:52.652 INFO [stderr] su: No module specific data is present
Dec 11 10:24:52.958 INFO running `"docker" "inspect" "6c42ca638463e40acab67bd103d4e9b97640c8a961d7f583c0aa1e7313c6a49d"`
Dec 11 10:24:53.022 INFO running `"docker" "rm" "-f" "6c42ca638463e40acab67bd103d4e9b97640c8a961d7f583c0aa1e7313c6a49d"`
Dec 11 10:24:53.152 INFO [stdout] 6c42ca638463e40acab67bd103d4e9b97640c8a961d7f583c0aa1e7313c6a49d