Dec 04 11:33:02.024 INFO checking robertmaloney/advent2017 against master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc for pr-56481
Dec 04 11:33:02.024 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-5/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/pr-56481/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/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 +c8ae2de8363be088604ffa2ccba84ff7ad7250bc-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 04 11:33:02.191 INFO [stdout] 20e8414942765a087e31701430a2716f207b74ab2f3c082662b422640f251306
Dec 04 11:33:02.194 INFO running `"docker" "start" "-a" "20e8414942765a087e31701430a2716f207b74ab2f3c082662b422640f251306"`
Dec 04 11:33:02.765 INFO [stderr] usermod: no changes
Dec 04 11:33:02.803 INFO [stderr]     Checking advent2017 v0.1.0 (/source)
Dec 04 11:33:03.095 INFO [stderr] warning: function is never used: `max_min_difference`
Dec 04 11:33:03.095 INFO [stderr]  --> src/day_two/mod.rs:5:1
Dec 04 11:33:03.095 INFO [stderr]   |
Dec 04 11:33:03.095 INFO [stderr] 5 | fn max_min_difference<T: Iterator<Item=u32>>(iter: T) -> u32 {
Dec 04 11:33:03.095 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 11:33:03.095 INFO [stderr]   |
Dec 04 11:33:03.095 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 04 11:33:03.095 INFO [stderr] 
Dec 04 11:33:03.095 INFO [stderr] warning: field is never used: `value`
Dec 04 11:33:03.095 INFO [stderr]  --> src/day_three/mod.rs:6:3
Dec 04 11:33:03.095 INFO [stderr]   |
Dec 04 11:33:03.095 INFO [stderr] 6 |   value: i32,
Dec 04 11:33:03.095 INFO [stderr]   |   ^^^^^^^^^^
Dec 04 11:33:03.095 INFO [stderr] 
Dec 04 11:33:03.103 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 11:33:03.103 INFO [stderr]   --> src/util/mod.rs:11:3
Dec 04 11:33:03.103 INFO [stderr]    |
Dec 04 11:33:03.103 INFO [stderr] 11 |   reader.read_to_string(&mut buffer);
Dec 04 11:33:03.103 INFO [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 11:33:03.103 INFO [stderr]    |
Dec 04 11:33:03.103 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 04 11:33:03.103 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 11:33:03.103 INFO [stderr] 
Dec 04 11:33:03.115 INFO [stderr] warning: function is never used: `max_min_difference`
Dec 04 11:33:03.115 INFO [stderr]  --> src/day_two/mod.rs:5:1
Dec 04 11:33:03.115 INFO [stderr]   |
Dec 04 11:33:03.115 INFO [stderr] 5 | fn max_min_difference<T: Iterator<Item=u32>>(iter: T) -> u32 {
Dec 04 11:33:03.115 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 11:33:03.115 INFO [stderr]   |
Dec 04 11:33:03.115 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 04 11:33:03.115 INFO [stderr] 
Dec 04 11:33:03.115 INFO [stderr] warning: field is never used: `value`
Dec 04 11:33:03.115 INFO [stderr]  --> src/day_three/mod.rs:6:3
Dec 04 11:33:03.115 INFO [stderr]   |
Dec 04 11:33:03.115 INFO [stderr] 6 |   value: i32,
Dec 04 11:33:03.115 INFO [stderr]   |   ^^^^^^^^^^
Dec 04 11:33:03.115 INFO [stderr] 
Dec 04 11:33:03.122 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 11:33:03.122 INFO [stderr]   --> src/util/mod.rs:11:3
Dec 04 11:33:03.122 INFO [stderr]    |
Dec 04 11:33:03.122 INFO [stderr] 11 |   reader.read_to_string(&mut buffer);
Dec 04 11:33:03.122 INFO [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 11:33:03.122 INFO [stderr]    |
Dec 04 11:33:03.122 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 04 11:33:03.122 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 11:33:03.122 INFO [stderr] 
Dec 04 11:33:03.148 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.35s
Dec 04 11:33:03.150 INFO [stderr] su: No module specific data is present
Dec 04 11:33:03.648 INFO running `"docker" "inspect" "20e8414942765a087e31701430a2716f207b74ab2f3c082662b422640f251306"`
Dec 04 11:33:03.784 INFO running `"docker" "rm" "-f" "20e8414942765a087e31701430a2716f207b74ab2f3c082662b422640f251306"`
Dec 04 11:33:04.095 INFO [stdout] 20e8414942765a087e31701430a2716f207b74ab2f3c082662b422640f251306