[INFO] updating cached repository jakubtuchol/adventofcode2018
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/jakubtuchol/adventofcode2018
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/jakubtuchol/adventofcode2018" "work/ex/pr-57617/sources/master#e2f221c75932de7a29845c8d6f1f73536ad00c41/gh/jakubtuchol/adventofcode2018"`
[INFO] [stderr] Cloning into 'work/ex/pr-57617/sources/master#e2f221c75932de7a29845c8d6f1f73536ad00c41/gh/jakubtuchol/adventofcode2018'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/jakubtuchol/adventofcode2018" "work/ex/pr-57617/sources/try#0bfb90d213a93e466b33d078a5b535a2a6f9c5ff/gh/jakubtuchol/adventofcode2018"`
[INFO] [stderr] Cloning into 'work/ex/pr-57617/sources/try#0bfb90d213a93e466b33d078a5b535a2a6f9c5ff/gh/jakubtuchol/adventofcode2018'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 12f36e69e0af5fdcbf7ff6abea8f6ca9e20a7ae8
[INFO] sha for GitHub repo jakubtuchol/adventofcode2018: 12f36e69e0af5fdcbf7ff6abea8f6ca9e20a7ae8
[INFO] validating manifest of jakubtuchol/adventofcode2018 on toolchain master#e2f221c75932de7a29845c8d6f1f73536ad00c41
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e2f221c75932de7a29845c8d6f1f73536ad00c41-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of jakubtuchol/adventofcode2018 on toolchain try#0bfb90d213a93e466b33d078a5b535a2a6f9c5ff
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0bfb90d213a93e466b33d078a5b535a2a6f9c5ff-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing jakubtuchol/adventofcode2018
[INFO] finished frobbing jakubtuchol/adventofcode2018
[INFO] frobbed toml for jakubtuchol/adventofcode2018 written to work/ex/pr-57617/sources/master#e2f221c75932de7a29845c8d6f1f73536ad00c41/gh/jakubtuchol/adventofcode2018/Cargo.toml
[INFO] started frobbing jakubtuchol/adventofcode2018
[INFO] finished frobbing jakubtuchol/adventofcode2018
[INFO] frobbed toml for jakubtuchol/adventofcode2018 written to work/ex/pr-57617/sources/try#0bfb90d213a93e466b33d078a5b535a2a6f9c5ff/gh/jakubtuchol/adventofcode2018/Cargo.toml
[INFO] crate jakubtuchol/adventofcode2018 has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e2f221c75932de7a29845c8d6f1f73536ad00c41-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0bfb90d213a93e466b33d078a5b535a2a6f9c5ff-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking jakubtuchol/adventofcode2018 against try#0bfb90d213a93e466b33d078a5b535a2a6f9c5ff for pr-57617
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57617/worker-1/try#0bfb90d213a93e466b33d078a5b535a2a6f9c5ff:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57617/sources/try#0bfb90d213a93e466b33d078a5b535a2a6f9c5ff/gh/jakubtuchol/adventofcode2018:/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" "+0bfb90d213a93e466b33d078a5b535a2a6f9c5ff-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 6fc3bb1b8c3826b562c11b92a64a391fb40d7df99d79ea251bbb461b12f3ffcd
[INFO] running `"docker" "start" "-a" "6fc3bb1b8c3826b562c11b92a64a391fb40d7df99d79ea251bbb461b12f3ffcd"`
[INFO] [stderr]     Checking adventofcode v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]  --> src/main.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #[macro_use] extern crate itertools;
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]  --> src/main.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #[macro_use] extern crate itertools;
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `find_matching_words`
[INFO] [stderr]   --> src/day_two.rs:30:1
[INFO] [stderr]    |
[INFO] [stderr] 30 | fn find_matching_words(ids: &[String]) -> Option<(&String, &String)> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.50s
[INFO] running `"docker" "inspect" "6fc3bb1b8c3826b562c11b92a64a391fb40d7df99d79ea251bbb461b12f3ffcd"`
[INFO] running `"docker" "rm" "-f" "6fc3bb1b8c3826b562c11b92a64a391fb40d7df99d79ea251bbb461b12f3ffcd"`
[INFO] [stdout] 6fc3bb1b8c3826b562c11b92a64a391fb40d7df99d79ea251bbb461b12f3ffcd