Dec 19 16:33:43.623 INFO checking ghotiphud/advent-of-code against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 16:33:43.624 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/ghotiphud/advent-of-code:/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 16:33:44.112 INFO [stdout] 8b1fc8130db5c912b4b19b7c93bba60c4ce8affec4a1b31e03efcb2affbc984d
Dec 19 16:33:44.115 INFO running `"docker" "start" "-a" "8b1fc8130db5c912b4b19b7c93bba60c4ce8affec4a1b31e03efcb2affbc984d"`
Dec 19 16:33:45.800 INFO [stderr] warning: An explicit [[bin]] section is specified in Cargo.toml which currently
Dec 19 16:33:45.800 INFO [stderr] disables Cargo from automatically inferring other binary targets.
Dec 19 16:33:45.800 INFO [stderr] This inference behavior will change in the Rust 2018 edition and the following
Dec 19 16:33:45.800 INFO [stderr] files will be included as a binary target:
Dec 19 16:33:45.800 INFO [stderr] 
Dec 19 16:33:45.800 INFO [stderr] * /opt/crater/workdir/src/main.rs
Dec 19 16:33:45.800 INFO [stderr] 
Dec 19 16:33:45.800 INFO [stderr] This is likely to break cargo build or cargo test as these files may not be
Dec 19 16:33:45.800 INFO [stderr] ready to be compiled as a binary target today. You can future-proof yourself
Dec 19 16:33:45.800 INFO [stderr] and disable this warning by adding `autobins = false` to your [package]
Dec 19 16:33:45.800 INFO [stderr] section. You may also move the files to a location where Cargo would not
Dec 19 16:33:45.800 INFO [stderr] automatically infer them to be a target, such as in subfolders.
Dec 19 16:33:45.800 INFO [stderr] 
Dec 19 16:33:45.800 INFO [stderr] For more information on this warning you can consult
Dec 19 16:33:45.800 INFO [stderr] https://github.com/rust-lang/cargo/issues/5330
Dec 19 16:33:45.800 INFO [stderr]     Checking advent-of-code v0.1.0 (/opt/crater/workdir)
Dec 19 16:33:46.420 INFO [stderr] warning: value assigned to `current` is never read
Dec 19 16:33:46.420 INFO [stderr]   --> src/day-3.rs:22:13
Dec 19 16:33:46.420 INFO [stderr]    |
Dec 19 16:33:46.420 INFO [stderr] 22 |     let mut current = House::new(0, 0);
Dec 19 16:33:46.420 INFO [stderr]    |             ^^^^^^^
Dec 19 16:33:46.420 INFO [stderr]    |
Dec 19 16:33:46.420 INFO [stderr]    = note: #[warn(unused_assignments)] on by default
Dec 19 16:33:46.420 INFO [stderr]    = help: maybe it is overwritten before being read?
Dec 19 16:33:46.420 INFO [stderr] 
Dec 19 16:33:46.600 INFO [stderr] warning: value assigned to `current` is never read
Dec 19 16:33:46.600 INFO [stderr]   --> src/day-3.rs:22:13
Dec 19 16:33:46.601 INFO [stderr]    |
Dec 19 16:33:46.601 INFO [stderr] 22 |     let mut current = House::new(0, 0);
Dec 19 16:33:46.601 INFO [stderr]    |             ^^^^^^^
Dec 19 16:33:46.601 INFO [stderr]    |
Dec 19 16:33:46.601 INFO [stderr]    = note: #[warn(unused_assignments)] on by default
Dec 19 16:33:46.601 INFO [stderr]    = help: maybe it is overwritten before being read?
Dec 19 16:33:46.601 INFO [stderr] 
Dec 19 16:33:46.700 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.92s
Dec 19 16:33:47.647 INFO running `"docker" "inspect" "8b1fc8130db5c912b4b19b7c93bba60c4ce8affec4a1b31e03efcb2affbc984d"`
Dec 19 16:33:47.952 INFO running `"docker" "rm" "-f" "8b1fc8130db5c912b4b19b7c93bba60c4ce8affec4a1b31e03efcb2affbc984d"`
Dec 19 16:33:48.261 INFO [stdout] 8b1fc8130db5c912b4b19b7c93bba60c4ce8affec4a1b31e03efcb2affbc984d