Dec 18 14:20:19.582 INFO checking linux_l6470-0.1.0 against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 18 14:20:19.582 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-6/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/reg/linux_l6470/0.1.0:/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" "+96d1334e567237b1507cd277938e7ae2de75ff51-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 18 14:20:19.756 INFO [stdout] 831be6f227a867a194df8a5f5983e165dd521d4b3e4d4d2caf8552975e0ecea5
Dec 18 14:20:19.762 INFO running `"docker" "start" "-a" "831be6f227a867a194df8a5f5983e165dd521d4b3e4d4d2caf8552975e0ecea5"`
Dec 18 14:20:20.855 INFO [stderr]     Checking linux_l6470 v0.1.0 (/opt/crater/workdir)
Dec 18 14:20:21.391 INFO [stderr] warning: unused variable: `tick_ns`
Dec 18 14:20:21.391 INFO [stderr]   --> src/lib.rs:71:13
Dec 18 14:20:21.391 INFO [stderr]    |
Dec 18 14:20:21.391 INFO [stderr] 71 |         let tick_ns = 250;
Dec 18 14:20:21.391 INFO [stderr]    |             ^^^^^^^ help: consider using `_tick_ns` instead
Dec 18 14:20:21.391 INFO [stderr]    |
Dec 18 14:20:21.391 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 18 14:20:21.391 INFO [stderr] 
Dec 18 14:20:21.436 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 14:20:21.436 INFO [stderr]    --> src/lib.rs:178:9
Dec 18 14:20:21.436 INFO [stderr]     |
Dec 18 14:20:21.436 INFO [stderr] 178 |         self.transfer(&buf[0..self.daisy_chain as usize]);
Dec 18 14:20:21.436 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 14:20:21.436 INFO [stderr]     |
Dec 18 14:20:21.436 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 18 14:20:21.436 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 14:20:21.436 INFO [stderr] 
Dec 18 14:20:21.473 INFO [stderr] warning: unused variable: `tick_ns`
Dec 18 14:20:21.473 INFO [stderr]   --> src/lib.rs:71:13
Dec 18 14:20:21.473 INFO [stderr]    |
Dec 18 14:20:21.473 INFO [stderr] 71 |         let tick_ns = 250;
Dec 18 14:20:21.473 INFO [stderr]    |             ^^^^^^^ help: consider using `_tick_ns` instead
Dec 18 14:20:21.473 INFO [stderr]    |
Dec 18 14:20:21.473 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 18 14:20:21.473 INFO [stderr] 
Dec 18 14:20:21.520 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 14:20:21.520 INFO [stderr]    --> src/lib.rs:178:9
Dec 18 14:20:21.520 INFO [stderr]     |
Dec 18 14:20:21.520 INFO [stderr] 178 |         self.transfer(&buf[0..self.daisy_chain as usize]);
Dec 18 14:20:21.520 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 14:20:21.520 INFO [stderr]     |
Dec 18 14:20:21.520 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 18 14:20:21.520 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 14:20:21.520 INFO [stderr] 
Dec 18 14:20:21.542 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.74s
Dec 18 14:20:21.880 INFO running `"docker" "inspect" "831be6f227a867a194df8a5f5983e165dd521d4b3e4d4d2caf8552975e0ecea5"`
Dec 18 14:20:22.041 INFO running `"docker" "rm" "-f" "831be6f227a867a194df8a5f5983e165dd521d4b3e4d4d2caf8552975e0ecea5"`
Dec 18 14:20:22.145 INFO [stdout] 831be6f227a867a194df8a5f5983e165dd521d4b3e4d4d2caf8552975e0ecea5