Dec 12 11:55:59.698 INFO checking linux_l6470-0.1.0 against master#3a75e80557a103497cffbcab395a2f37061a77ea for pr-56677
Dec 12 11:55:59.698 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-4/master#3a75e80557a103497cffbcab395a2f37061a77ea:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56677/master#3a75e80557a103497cffbcab395a2f37061a77ea:/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 +3a75e80557a103497cffbcab395a2f37061a77ea-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 12 11:56:00.060 INFO [stdout] d4612d03094ec2992d94b0f47c155b033e4c0cb75e15447aaad7064a14d4e8c3
Dec 12 11:56:00.064 INFO running `"docker" "start" "-a" "d4612d03094ec2992d94b0f47c155b033e4c0cb75e15447aaad7064a14d4e8c3"`
Dec 12 11:56:01.104 INFO [stderr] usermod: no changes
Dec 12 11:56:01.158 INFO [stderr]     Checking linux_l6470 v0.1.0 (/source)
Dec 12 11:56:02.104 INFO [stderr] warning: unused variable: `tick_ns`
Dec 12 11:56:02.104 INFO [stderr]   --> src/lib.rs:71:13
Dec 12 11:56:02.104 INFO [stderr]    |
Dec 12 11:56:02.104 INFO [stderr] 71 |         let tick_ns = 250;
Dec 12 11:56:02.104 INFO [stderr]    |             ^^^^^^^ help: consider using `_tick_ns` instead
Dec 12 11:56:02.104 INFO [stderr]    |
Dec 12 11:56:02.104 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 12 11:56:02.104 INFO [stderr] 
Dec 12 11:56:02.104 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 12 11:56:02.104 INFO [stderr]    --> src/lib.rs:178:9
Dec 12 11:56:02.104 INFO [stderr]     |
Dec 12 11:56:02.104 INFO [stderr] 178 |         self.transfer(&buf[0..self.daisy_chain as usize]);
Dec 12 11:56:02.104 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 11:56:02.104 INFO [stderr]     |
Dec 12 11:56:02.104 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 12 11:56:02.104 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 12 11:56:02.104 INFO [stderr] 
Dec 12 11:56:02.356 INFO [stderr] warning: unused variable: `tick_ns`
Dec 12 11:56:02.357 INFO [stderr]   --> src/lib.rs:71:13
Dec 12 11:56:02.357 INFO [stderr]    |
Dec 12 11:56:02.357 INFO [stderr] 71 |         let tick_ns = 250;
Dec 12 11:56:02.357 INFO [stderr]    |             ^^^^^^^ help: consider using `_tick_ns` instead
Dec 12 11:56:02.357 INFO [stderr]    |
Dec 12 11:56:02.357 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 12 11:56:02.357 INFO [stderr] 
Dec 12 11:56:02.405 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 12 11:56:02.405 INFO [stderr]    --> src/lib.rs:178:9
Dec 12 11:56:02.405 INFO [stderr]     |
Dec 12 11:56:02.405 INFO [stderr] 178 |         self.transfer(&buf[0..self.daisy_chain as usize]);
Dec 12 11:56:02.405 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 11:56:02.405 INFO [stderr]     |
Dec 12 11:56:02.405 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 12 11:56:02.405 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 12 11:56:02.405 INFO [stderr] 
Dec 12 11:56:02.446 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.29s
Dec 12 11:56:02.446 INFO [stderr] su: No module specific data is present
Dec 12 11:56:02.848 INFO running `"docker" "inspect" "d4612d03094ec2992d94b0f47c155b033e4c0cb75e15447aaad7064a14d4e8c3"`
Dec 12 11:56:03.046 INFO running `"docker" "rm" "-f" "d4612d03094ec2992d94b0f47c155b033e4c0cb75e15447aaad7064a14d4e8c3"`
Dec 12 11:56:03.222 INFO [stdout] d4612d03094ec2992d94b0f47c155b033e4c0cb75e15447aaad7064a14d4e8c3