Dec 19 09:38:51.040 INFO checking rwalters/concur_example against try#e70472fc501b855c9080f3772432c10fe20b8866 for pr-56955
Dec 19 09:38:51.040 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-2/try#e70472fc501b855c9080f3772432c10fe20b8866:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/gh/rwalters/concur_example:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+e70472fc501b855c9080f3772432c10fe20b8866-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 09:38:51.440 INFO [stdout] 0f71fbba0dabb6960d7056b7bb73b7b043c0e208e0c73e09be7764369f0ee267
Dec 19 09:38:51.452 INFO running `"docker" "start" "-a" "0f71fbba0dabb6960d7056b7bb73b7b043c0e208e0c73e09be7764369f0ee267"`
Dec 19 09:38:52.980 INFO [stderr]     Checking concur_example v0.1.0 (/opt/crater/workdir)
Dec 19 09:38:53.148 INFO [stderr] warning: use of deprecated item 'std::thread::sleep_ms': replaced by `std::thread::sleep`
Dec 19 09:38:53.148 INFO [stderr]   --> src/main.rs:24:5
Dec 19 09:38:53.148 INFO [stderr]    |
Dec 19 09:38:53.148 INFO [stderr] 24 |     thread::sleep_ms(50);
Dec 19 09:38:53.148 INFO [stderr]    |     ^^^^^^^^^^^^^^^^
Dec 19 09:38:53.148 INFO [stderr]    |
Dec 19 09:38:53.148 INFO [stderr]    = note: #[warn(deprecated)] on by default
Dec 19 09:38:53.148 INFO [stderr] 
Dec 19 09:38:53.223 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 09:38:53.223 INFO [stderr]   --> src/main.rs:40:13
Dec 19 09:38:53.223 INFO [stderr]    |
Dec 19 09:38:53.223 INFO [stderr] 40 |             tx.send(());
Dec 19 09:38:53.223 INFO [stderr]    |             ^^^^^^^^^^^^
Dec 19 09:38:53.223 INFO [stderr]    |
Dec 19 09:38:53.223 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 19 09:38:53.223 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 09:38:53.223 INFO [stderr] 
Dec 19 09:38:53.223 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 09:38:53.223 INFO [stderr]   --> src/main.rs:46:9
Dec 19 09:38:53.223 INFO [stderr]    |
Dec 19 09:38:53.223 INFO [stderr] 46 |         rx.recv();
Dec 19 09:38:53.223 INFO [stderr]    |         ^^^^^^^^^^
Dec 19 09:38:53.223 INFO [stderr] warning: use of deprecated item 'std::thread::sleep_ms': replaced by `std::thread::sleep`
Dec 19 09:38:53.223 INFO [stderr]   --> src/main.rs:24:5
Dec 19 09:38:53.223 INFO [stderr]    |
Dec 19 09:38:53.223 INFO [stderr] 24 |     thread::sleep_ms(50);
Dec 19 09:38:53.223 INFO [stderr]    |     ^^^^^^^^^^^^^^^^
Dec 19 09:38:53.223 INFO [stderr]    |
Dec 19 09:38:53.223 INFO [stderr]    = note: #[warn(deprecated)] on by default
Dec 19 09:38:53.223 INFO [stderr] 
Dec 19 09:38:53.223 INFO [stderr]    |
Dec 19 09:38:53.223 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 09:38:53.223 INFO [stderr] 
Dec 19 09:38:53.224 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 09:38:53.224 INFO [stderr]   --> src/main.rs:55:13
Dec 19 09:38:53.224 INFO [stderr]    |
Dec 19 09:38:53.224 INFO [stderr] 55 |             tx.send(i);
Dec 19 09:38:53.224 INFO [stderr]    |             ^^^^^^^^^^^
Dec 19 09:38:53.224 INFO [stderr]    |
Dec 19 09:38:53.224 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 09:38:53.224 INFO [stderr] 
Dec 19 09:38:53.299 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 09:38:53.300 INFO [stderr]   --> src/main.rs:40:13
Dec 19 09:38:53.300 INFO [stderr]    |
Dec 19 09:38:53.300 INFO [stderr] 40 |             tx.send(());
Dec 19 09:38:53.300 INFO [stderr]    |             ^^^^^^^^^^^^
Dec 19 09:38:53.300 INFO [stderr]    |
Dec 19 09:38:53.300 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 19 09:38:53.300 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 09:38:53.300 INFO [stderr] 
Dec 19 09:38:53.300 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 09:38:53.300 INFO [stderr]   --> src/main.rs:46:9
Dec 19 09:38:53.300 INFO [stderr]    |
Dec 19 09:38:53.300 INFO [stderr] 46 |         rx.recv();
Dec 19 09:38:53.300 INFO [stderr]    |         ^^^^^^^^^^
Dec 19 09:38:53.300 INFO [stderr]    |
Dec 19 09:38:53.300 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 09:38:53.300 INFO [stderr] 
Dec 19 09:38:53.300 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 09:38:53.300 INFO [stderr]   --> src/main.rs:55:13
Dec 19 09:38:53.300 INFO [stderr]    |
Dec 19 09:38:53.300 INFO [stderr] 55 |             tx.send(i);
Dec 19 09:38:53.300 INFO [stderr]    |             ^^^^^^^^^^^
Dec 19 09:38:53.300 INFO [stderr]    |
Dec 19 09:38:53.300 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 09:38:53.300 INFO [stderr] 
Dec 19 09:38:53.331 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.40s
Dec 19 09:38:54.217 INFO running `"docker" "inspect" "0f71fbba0dabb6960d7056b7bb73b7b043c0e208e0c73e09be7764369f0ee267"`
Dec 19 09:38:54.385 INFO running `"docker" "rm" "-f" "0f71fbba0dabb6960d7056b7bb73b7b043c0e208e0c73e09be7764369f0ee267"`
Dec 19 09:38:54.632 INFO [stdout] 0f71fbba0dabb6960d7056b7bb73b7b043c0e208e0c73e09be7764369f0ee267