Dec 19 20:03:12.239 INFO checking banditpig/AoC_2015_Rust against try#e70472fc501b855c9080f3772432c10fe20b8866 for pr-56955
Dec 19 20:03:12.239 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-3/try#e70472fc501b855c9080f3772432c10fe20b8866:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/gh/banditpig/AoC_2015_Rust:/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" "+e70472fc501b855c9080f3772432c10fe20b8866-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 20:03:12.742 INFO [stdout] 3774caff340f12dc5ab1130ba8941d39f613e9a440a7e0ffeea8210e1e697367
Dec 19 20:03:12.855 INFO running `"docker" "start" "-a" "3774caff340f12dc5ab1130ba8941d39f613e9a440a7e0ffeea8210e1e697367"`
Dec 19 20:03:14.126 INFO [stderr]     Checking rust-crypto v0.2.36
Dec 19 20:03:19.010 INFO [stderr]     Checking rust v0.1.0 (/opt/crater/workdir)
Dec 19 20:03:19.276 INFO [stderr] warning: unused import: `std::thread`
Dec 19 20:03:19.276 INFO [stderr]  --> src/main.rs:2:5
Dec 19 20:03:19.276 INFO [stderr]   |
Dec 19 20:03:19.276 INFO [stderr] 2 | use std::thread;
Dec 19 20:03:19.276 INFO [stderr]   |     ^^^^^^^^^^^
Dec 19 20:03:19.276 INFO [stderr]   |
Dec 19 20:03:19.276 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 19 20:03:19.276 INFO [stderr] 
Dec 19 20:03:19.283 INFO [stderr] warning: unused import: `std::thread`
Dec 19 20:03:19.283 INFO [stderr]  --> src/main.rs:2:5
Dec 19 20:03:19.283 INFO [stderr]   |
Dec 19 20:03:19.284 INFO [stderr] 2 | use std::thread;
Dec 19 20:03:19.284 INFO [stderr]   |     ^^^^^^^^^^^
Dec 19 20:03:19.284 INFO [stderr]   |
Dec 19 20:03:19.285 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 19 20:03:19.285 INFO [stderr] 
Dec 19 20:03:19.498 INFO [stderr] warning: function is never used: `has_duplicates`
Dec 19 20:03:19.498 INFO [stderr]   --> src/utils.rs:11:1
Dec 19 20:03:19.498 INFO [stderr]    |
Dec 19 20:03:19.498 INFO [stderr] 11 | pub fn has_duplicates<T: Eq + Ord + Clone>(v: &Vec<T>) -> bool {
Dec 19 20:03:19.498 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 20:03:19.498 INFO [stderr]    |
Dec 19 20:03:19.498 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 19 20:03:19.498 INFO [stderr] 
Dec 19 20:03:19.499 INFO [stderr] warning: function is never used: `has_duplicates`
Dec 19 20:03:19.499 INFO [stderr]   --> src/utils.rs:11:1
Dec 19 20:03:19.499 INFO [stderr]    |
Dec 19 20:03:19.499 INFO [stderr] 11 | pub fn has_duplicates<T: Eq + Ord + Clone>(v: &Vec<T>) -> bool {
Dec 19 20:03:19.499 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 20:03:19.499 INFO [stderr]    |
Dec 19 20:03:19.500 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 19 20:03:19.504 INFO [stderr] 
Dec 19 20:03:19.546 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.45s
Dec 19 20:03:19.896 INFO running `"docker" "inspect" "3774caff340f12dc5ab1130ba8941d39f613e9a440a7e0ffeea8210e1e697367"`
Dec 19 20:03:19.991 INFO running `"docker" "rm" "-f" "3774caff340f12dc5ab1130ba8941d39f613e9a440a7e0ffeea8210e1e697367"`
Dec 19 20:03:20.148 INFO [stdout] 3774caff340f12dc5ab1130ba8941d39f613e9a440a7e0ffeea8210e1e697367