Dec 19 20:23:34.513 INFO checking arcalinea/rcat against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 20:23:34.513 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-1/master#d99a320cba42f661aebfa1293b7b2ec3603dda75:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/gh/arcalinea/rcat:/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" "+d99a320cba42f661aebfa1293b7b2ec3603dda75-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 20:23:34.936 INFO [stdout] 94112cef55be4a51bb9a51555faa3d19627557c10dd6c5bdaf3e47bd591b6f97
Dec 19 20:23:34.942 INFO running `"docker" "start" "-a" "94112cef55be4a51bb9a51555faa3d19627557c10dd6c5bdaf3e47bd591b6f97"`
Dec 19 20:23:36.244 INFO [stderr]     Checking rcat v0.1.0 (/opt/crater/workdir)
Dec 19 20:23:36.489 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 20:23:36.489 INFO [stderr]   --> src/main.rs:56:4
Dec 19 20:23:36.489 INFO [stderr]    |
Dec 19 20:23:36.489 INFO [stderr] 56 |             io::stdin().read_line(&mut input);
Dec 19 20:23:36.489 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 20:23:36.489 INFO [stderr]    |
Dec 19 20:23:36.489 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 19 20:23:36.489 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 20:23:36.489 INFO [stderr] 
Dec 19 20:23:36.489 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 20:23:36.489 INFO [stderr]   --> src/main.rs:58:4
Dec 19 20:23:36.489 INFO [stderr]    |
Dec 19 20:23:36.489 INFO [stderr] 58 |             stream.write(input.as_bytes());
Dec 19 20:23:36.489 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 20:23:36.489 INFO [stderr]    |
Dec 19 20:23:36.489 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 20:23:36.489 INFO [stderr] 
Dec 19 20:23:36.489 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 20:23:36.489 INFO [stderr]   --> src/main.rs:88:5
Dec 19 20:23:36.489 INFO [stderr]    |
Dec 19 20:23:36.489 INFO [stderr] 88 |                 file.write(&buffer[..s]);
Dec 19 20:23:36.489 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 20:23:36.489 INFO [stderr]    |
Dec 19 20:23:36.489 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 20:23:36.489 INFO [stderr] 
Dec 19 20:23:36.552 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 20:23:36.552 INFO [stderr]   --> src/main.rs:56:4
Dec 19 20:23:36.552 INFO [stderr]    |
Dec 19 20:23:36.552 INFO [stderr] 56 |             io::stdin().read_line(&mut input);
Dec 19 20:23:36.552 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 20:23:36.552 INFO [stderr]    |
Dec 19 20:23:36.552 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 19 20:23:36.552 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 20:23:36.552 INFO [stderr] 
Dec 19 20:23:36.552 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 20:23:36.552 INFO [stderr]   --> src/main.rs:58:4
Dec 19 20:23:36.552 INFO [stderr]    |
Dec 19 20:23:36.552 INFO [stderr] 58 |             stream.write(input.as_bytes());
Dec 19 20:23:36.552 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 20:23:36.552 INFO [stderr]    |
Dec 19 20:23:36.552 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 20:23:36.552 INFO [stderr] 
Dec 19 20:23:36.552 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 20:23:36.552 INFO [stderr]   --> src/main.rs:88:5
Dec 19 20:23:36.552 INFO [stderr]    |
Dec 19 20:23:36.552 INFO [stderr] 88 |                 file.write(&buffer[..s]);
Dec 19 20:23:36.552 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 20:23:36.552 INFO [stderr]    |
Dec 19 20:23:36.552 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 20:23:36.552 INFO [stderr] 
Dec 19 20:23:36.567 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.37s
Dec 19 20:23:36.924 INFO running `"docker" "inspect" "94112cef55be4a51bb9a51555faa3d19627557c10dd6c5bdaf3e47bd591b6f97"`
Dec 19 20:23:37.032 INFO running `"docker" "rm" "-f" "94112cef55be4a51bb9a51555faa3d19627557c10dd6c5bdaf3e47bd591b6f97"`
Dec 19 20:23:37.216 INFO [stdout] 94112cef55be4a51bb9a51555faa3d19627557c10dd6c5bdaf3e47bd591b6f97