[INFO] updating cached repository jimblandy/advent-of-code-2018
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/jimblandy/advent-of-code-2018
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/jimblandy/advent-of-code-2018" "work/ex/pr-56896/sources/master#adbfec229ce07ff4b2a7bf2d6dec2d13cb224980/gh/jimblandy/advent-of-code-2018"`
[INFO] [stderr] Cloning into 'work/ex/pr-56896/sources/master#adbfec229ce07ff4b2a7bf2d6dec2d13cb224980/gh/jimblandy/advent-of-code-2018'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/jimblandy/advent-of-code-2018" "work/ex/pr-56896/sources/try#bad365140e1e8233b42b21af70a407f14ce5fec5/gh/jimblandy/advent-of-code-2018"`
[INFO] [stderr] Cloning into 'work/ex/pr-56896/sources/try#bad365140e1e8233b42b21af70a407f14ce5fec5/gh/jimblandy/advent-of-code-2018'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 41de84e15d1173222efc75499e25d82128095898
[INFO] sha for GitHub repo jimblandy/advent-of-code-2018: 41de84e15d1173222efc75499e25d82128095898
[INFO] validating manifest of jimblandy/advent-of-code-2018 on toolchain master#adbfec229ce07ff4b2a7bf2d6dec2d13cb224980
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+adbfec229ce07ff4b2a7bf2d6dec2d13cb224980-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of jimblandy/advent-of-code-2018 on toolchain try#bad365140e1e8233b42b21af70a407f14ce5fec5
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+bad365140e1e8233b42b21af70a407f14ce5fec5-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing jimblandy/advent-of-code-2018
[INFO] finished frobbing jimblandy/advent-of-code-2018
[INFO] frobbed toml for jimblandy/advent-of-code-2018 written to work/ex/pr-56896/sources/master#adbfec229ce07ff4b2a7bf2d6dec2d13cb224980/gh/jimblandy/advent-of-code-2018/Cargo.toml
[INFO] started frobbing jimblandy/advent-of-code-2018
[INFO] finished frobbing jimblandy/advent-of-code-2018
[INFO] frobbed toml for jimblandy/advent-of-code-2018 written to work/ex/pr-56896/sources/try#bad365140e1e8233b42b21af70a407f14ce5fec5/gh/jimblandy/advent-of-code-2018/Cargo.toml
[INFO] crate jimblandy/advent-of-code-2018 has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+adbfec229ce07ff4b2a7bf2d6dec2d13cb224980-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+bad365140e1e8233b42b21af70a407f14ce5fec5-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking jimblandy/advent-of-code-2018 against try#bad365140e1e8233b42b21af70a407f14ce5fec5 for pr-56896
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56896/worker-5/try#bad365140e1e8233b42b21af70a407f14ce5fec5:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56896/sources/try#bad365140e1e8233b42b21af70a407f14ce5fec5/gh/jimblandy/advent-of-code-2018:/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" "+bad365140e1e8233b42b21af70a407f14ce5fec5-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 34b313381494631ad2ddd46912539cb9d58138ed239bc7d7a56d9df4cc342a71
[INFO] running `"docker" "start" "-a" "34b313381494631ad2ddd46912539cb9d58138ed239bc7d7a56d9df4cc342a71"`
[INFO] [stderr]    Compiling ndarray v0.12.1
[INFO] [stderr]     Checking itertools v0.7.11
[INFO] [stderr]     Checking advent-of-code-2018 v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `root`
[INFO] [stderr]    --> src/bin/day-08.rs:105:9
[INFO] [stderr]     |
[INFO] [stderr] 105 |     let root = parse(&mut summer, &mut numbers.iter().cloned());
[INFO] [stderr]     |         ^^^^ help: consider using `_root` instead
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `root`
[INFO] [stderr]    --> src/bin/day-08.rs:105:9
[INFO] [stderr]     |
[INFO] [stderr] 105 |     let root = parse(&mut summer, &mut numbers.iter().cloned());
[INFO] [stderr]     |         ^^^^ help: consider using `_root` instead
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `is_empty`
[INFO] [stderr]   --> src/bin/day-07.rs:33:5
[INFO] [stderr]    |
[INFO] [stderr] 33 |     fn is_empty(&self) -> bool {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]   --> src/bin/day-06.rs:31:17
[INFO] [stderr]    |
[INFO] [stderr] 30 |                 NEW => '*',
[INFO] [stderr]    |                 --- matches any value
[INFO] [stderr] 31 |                 TIE => '.',
[INFO] [stderr]    |                 ^^^ unreachable pattern
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unreachable_patterns)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]   --> src/bin/day-06.rs:32:17
[INFO] [stderr]    |
[INFO] [stderr] 30 |                 NEW => '*',
[INFO] [stderr]    |                 --- matches any value
[INFO] [stderr] 31 |                 TIE => '.',
[INFO] [stderr] 32 |                 n => (b'a' + (n as u8) % 26) as char
[INFO] [stderr]    |                 ^ unreachable pattern
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `NEW`
[INFO] [stderr]   --> src/bin/day-06.rs:30:17
[INFO] [stderr]    |
[INFO] [stderr] 30 |                 NEW => '*',
[INFO] [stderr]    |                 ^^^ help: consider using `_NEW` instead
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable `NEW` should have a snake case name such as `new`
[INFO] [stderr]   --> src/bin/day-06.rs:30:17
[INFO] [stderr]    |
[INFO] [stderr] 30 |                 NEW => '*',
[INFO] [stderr]    |                 ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(non_snake_case)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]   --> src/bin/day-06.rs:31:17
[INFO] [stderr]    |
[INFO] [stderr] 30 |                 NEW => '*',
[INFO] [stderr]    |                 --- matches any value
[INFO] [stderr] 31 |                 TIE => '.',
[INFO] [stderr]    |                 ^^^ unreachable pattern
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unreachable_patterns)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]   --> src/bin/day-06.rs:32:17
[INFO] [stderr]    |
[INFO] [stderr] 30 |                 NEW => '*',
[INFO] [stderr]    |                 --- matches any value
[INFO] [stderr] 31 |                 TIE => '.',
[INFO] [stderr] 32 |                 n => (b'a' + (n as u8) % 26) as char
[INFO] [stderr]    |                 ^ unreachable pattern
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `NEW`
[INFO] [stderr]   --> src/bin/day-06.rs:30:17
[INFO] [stderr]    |
[INFO] [stderr] 30 |                 NEW => '*',
[INFO] [stderr]    |                 ^^^ help: consider using `_NEW` instead
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable `NEW` should have a snake case name such as `new`
[INFO] [stderr]   --> src/bin/day-06.rs:30:17
[INFO] [stderr]    |
[INFO] [stderr] 30 |                 NEW => '*',
[INFO] [stderr]    |                 ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(non_snake_case)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `is_empty`
[INFO] [stderr]   --> src/bin/day-07.rs:33:5
[INFO] [stderr]    |
[INFO] [stderr] 33 |     fn is_empty(&self) -> bool {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 14.02s
[INFO] running `"docker" "inspect" "34b313381494631ad2ddd46912539cb9d58138ed239bc7d7a56d9df4cc342a71"`
[INFO] running `"docker" "rm" "-f" "34b313381494631ad2ddd46912539cb9d58138ed239bc7d7a56d9df4cc342a71"`
[INFO] [stdout] 34b313381494631ad2ddd46912539cb9d58138ed239bc7d7a56d9df4cc342a71