Dec 19 10:04:25.105 INFO checking robertmaloney/advent2017 against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 10:04:25.105 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-5/master#d99a320cba42f661aebfa1293b7b2ec3603dda75:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/gh/robertmaloney/advent2017:/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 10:04:25.609 INFO [stdout] 4cc58219f59f12af5fdd562f0c7afc84f8ef7fd019331e55835fdfcc50fe80d0
Dec 19 10:04:25.611 INFO running `"docker" "start" "-a" "4cc58219f59f12af5fdd562f0c7afc84f8ef7fd019331e55835fdfcc50fe80d0"`
Dec 19 10:04:27.488 INFO [stderr]     Checking advent2017 v0.1.0 (/opt/crater/workdir)
Dec 19 10:04:27.832 INFO [stderr] warning: function is never used: `max_min_difference`
Dec 19 10:04:27.832 INFO [stderr]  --> src/day_two/mod.rs:5:1
Dec 19 10:04:27.832 INFO [stderr]   |
Dec 19 10:04:27.832 INFO [stderr] 5 | fn max_min_difference<T: Iterator<Item=u32>>(iter: T) -> u32 {
Dec 19 10:04:27.832 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 10:04:27.832 INFO [stderr]   |
Dec 19 10:04:27.832 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 19 10:04:27.832 INFO [stderr] 
Dec 19 10:04:27.832 INFO [stderr] warning: field is never used: `value`
Dec 19 10:04:27.832 INFO [stderr]  --> src/day_three/mod.rs:6:3
Dec 19 10:04:27.832 INFO [stderr]   |
Dec 19 10:04:27.832 INFO [stderr] 6 |   value: i32,
Dec 19 10:04:27.832 INFO [stderr]   |   ^^^^^^^^^^
Dec 19 10:04:27.833 INFO [stderr] 
Dec 19 10:04:27.836 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 10:04:27.836 INFO [stderr]   --> src/util/mod.rs:11:3
Dec 19 10:04:27.836 INFO [stderr]    |
Dec 19 10:04:27.836 INFO [stderr] 11 |   reader.read_to_string(&mut buffer);
Dec 19 10:04:27.836 INFO [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 10:04:27.836 INFO [stderr]    |
Dec 19 10:04:27.836 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 19 10:04:27.836 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 10:04:27.836 INFO [stderr] 
Dec 19 10:04:27.896 INFO [stderr] warning: function is never used: `max_min_difference`
Dec 19 10:04:27.896 INFO [stderr]  --> src/day_two/mod.rs:5:1
Dec 19 10:04:27.896 INFO [stderr]   |
Dec 19 10:04:27.896 INFO [stderr] 5 | fn max_min_difference<T: Iterator<Item=u32>>(iter: T) -> u32 {
Dec 19 10:04:27.896 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 10:04:27.896 INFO [stderr]   |
Dec 19 10:04:27.896 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 19 10:04:27.896 INFO [stderr] 
Dec 19 10:04:27.896 INFO [stderr] warning: field is never used: `value`
Dec 19 10:04:27.896 INFO [stderr]  --> src/day_three/mod.rs:6:3
Dec 19 10:04:27.896 INFO [stderr]   |
Dec 19 10:04:27.896 INFO [stderr] 6 |   value: i32,
Dec 19 10:04:27.896 INFO [stderr]   |   ^^^^^^^^^^
Dec 19 10:04:27.896 INFO [stderr] 
Dec 19 10:04:27.896 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 10:04:27.896 INFO [stderr]   --> src/util/mod.rs:11:3
Dec 19 10:04:27.896 INFO [stderr]    |
Dec 19 10:04:27.896 INFO [stderr] 11 |   reader.read_to_string(&mut buffer);
Dec 19 10:04:27.896 INFO [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 10:04:27.896 INFO [stderr]    |
Dec 19 10:04:27.897 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 19 10:04:27.897 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 10:04:27.897 INFO [stderr] 
Dec 19 10:04:27.976 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.50s
Dec 19 10:04:28.422 INFO running `"docker" "inspect" "4cc58219f59f12af5fdd562f0c7afc84f8ef7fd019331e55835fdfcc50fe80d0"`
Dec 19 10:04:28.716 INFO running `"docker" "rm" "-f" "4cc58219f59f12af5fdd562f0c7afc84f8ef7fd019331e55835fdfcc50fe80d0"`
Dec 19 10:04:28.915 INFO [stdout] 4cc58219f59f12af5fdd562f0c7afc84f8ef7fd019331e55835fdfcc50fe80d0