[INFO] updating cached repository akatakritos/adventofcode-2018-rust
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/akatakritos/adventofcode-2018-rust
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/akatakritos/adventofcode-2018-rust" "work/ex/pr-60174/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/akatakritos/adventofcode-2018-rust"`
[INFO] [stderr] Cloning into 'work/ex/pr-60174/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/akatakritos/adventofcode-2018-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/akatakritos/adventofcode-2018-rust" "work/ex/pr-60174/sources/try#74092351c05ae61047b2be02024415546595e974/gh/akatakritos/adventofcode-2018-rust"`
[INFO] [stderr] Cloning into 'work/ex/pr-60174/sources/try#74092351c05ae61047b2be02024415546595e974/gh/akatakritos/adventofcode-2018-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 16f9f75ff9cbe2f7f3dea2fb9199332de21066e4
[INFO] sha for GitHub repo akatakritos/adventofcode-2018-rust: 16f9f75ff9cbe2f7f3dea2fb9199332de21066e4
[INFO] validating manifest of akatakritos/adventofcode-2018-rust on toolchain master#e305df1846a6d985315917ae0c81b74af8b4e641
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+e305df1846a6d985315917ae0c81b74af8b4e641-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of akatakritos/adventofcode-2018-rust on toolchain try#74092351c05ae61047b2be02024415546595e974
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+74092351c05ae61047b2be02024415546595e974-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing akatakritos/adventofcode-2018-rust
[INFO] finished frobbing akatakritos/adventofcode-2018-rust
[INFO] frobbed toml for akatakritos/adventofcode-2018-rust written to work/ex/pr-60174/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/akatakritos/adventofcode-2018-rust/Cargo.toml
[INFO] started frobbing akatakritos/adventofcode-2018-rust
[INFO] finished frobbing akatakritos/adventofcode-2018-rust
[INFO] frobbed toml for akatakritos/adventofcode-2018-rust written to work/ex/pr-60174/sources/try#74092351c05ae61047b2be02024415546595e974/gh/akatakritos/adventofcode-2018-rust/Cargo.toml
[INFO] crate akatakritos/adventofcode-2018-rust already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+e305df1846a6d985315917ae0c81b74af8b4e641-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+74092351c05ae61047b2be02024415546595e974-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking akatakritos/adventofcode-2018-rust against try#74092351c05ae61047b2be02024415546595e974 for pr-60174
[INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-60174/worker-0/try#74092351c05ae61047b2be02024415546595e974:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-60174/sources/try#74092351c05ae61047b2be02024415546595e974/gh/akatakritos/adventofcode-2018-rust:/opt/crater/workdir:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/crater-raid/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" "+74092351c05ae61047b2be02024415546595e974-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 66e2dcb54a9db4a2b1f670cee54ef08bf1eeb0dd705eb23ee4bd617ad7ccd272
[INFO] running `"docker" "start" "-a" "66e2dcb54a9db4a2b1f670cee54ef08bf1eeb0dd705eb23ee4bd617ad7ccd272"`
[INFO] [stderr]     Checking chrono v0.4.6
[INFO] [stderr]     Checking spectral v0.6.0
[INFO] [stderr]     Checking adventofcode v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]  --> src/lib.rs:4:1
[INFO] [stderr]   |
[INFO] [stderr] 4 | #[macro_use]
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/day07/mod.rs:46:17
[INFO] [stderr]    |
[INFO] [stderr] 46 |             let mut m_edges = nodes.get_mut(&m).unwrap();
[INFO] [stderr]    |                 ----^^^^^^^
[INFO] [stderr]    |                 |
[INFO] [stderr]    |                 help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/day07/mod.rs:46:17
[INFO] [stderr]    |
[INFO] [stderr] 46 |             let mut m_edges = nodes.get_mut(&m).unwrap();
[INFO] [stderr]    |                 ----^^^^^^^
[INFO] [stderr]    |                 |
[INFO] [stderr]    |                 help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.75s
[INFO] running `"docker" "inspect" "66e2dcb54a9db4a2b1f670cee54ef08bf1eeb0dd705eb23ee4bd617ad7ccd272"`
[INFO] running `"docker" "rm" "-f" "66e2dcb54a9db4a2b1f670cee54ef08bf1eeb0dd705eb23ee4bd617ad7ccd272"`
[INFO] [stdout] 66e2dcb54a9db4a2b1f670cee54ef08bf1eeb0dd705eb23ee4bd617ad7ccd272