[INFO] updating cached repository carlosmn/aoc2017
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/carlosmn/aoc2017
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/carlosmn/aoc2017" "work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/gh/carlosmn/aoc2017"`
[INFO] [stderr] Cloning into 'work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/gh/carlosmn/aoc2017'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/carlosmn/aoc2017" "work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/carlosmn/aoc2017"`
[INFO] [stderr] Cloning into 'work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/carlosmn/aoc2017'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] d979c2476d911aad546d92c9d02d10b14a5f0788
[INFO] sha for GitHub repo carlosmn/aoc2017: d979c2476d911aad546d92c9d02d10b14a5f0788
[INFO] validating manifest of carlosmn/aoc2017 on toolchain master#0f88167f89fffe321590c5148f21b7d51d44388d
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0f88167f89fffe321590c5148f21b7d51d44388d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of carlosmn/aoc2017 on toolchain try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing carlosmn/aoc2017
[INFO] finished frobbing carlosmn/aoc2017
[INFO] frobbed toml for carlosmn/aoc2017 written to work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/gh/carlosmn/aoc2017/Cargo.toml
[INFO] started frobbing carlosmn/aoc2017
[INFO] finished frobbing carlosmn/aoc2017
[INFO] frobbed toml for carlosmn/aoc2017 written to work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/carlosmn/aoc2017/Cargo.toml
[INFO] crate carlosmn/aoc2017 already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0f88167f89fffe321590c5148f21b7d51d44388d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking carlosmn/aoc2017 against try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b for pr-58948
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-58948/worker-5/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/carlosmn/aoc2017:/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" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 59ec211abfee1d77bcd18be19f9686ef4d80e988a6a0e97efd3297c206737aae
[INFO] running `"docker" "start" "-a" "59ec211abfee1d77bcd18be19f9686ef4d80e988a6a0e97efd3297c206737aae"`
[INFO] [stderr]     Checking regex v0.2.3
[INFO] [stderr]     Checking aoc2017 v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: constant item is never used: `SAMPLE_SPREADSHEET`
[INFO] [stderr]  --> src/bin/aoc2.rs:2:1
[INFO] [stderr]   |
[INFO] [stderr] 2 | / const SAMPLE_SPREADSHEET: &'static [&'static [Option<u64>]] = &[
[INFO] [stderr] 3 | |     &[Some(5), Some(1), Some(9), Some(5)],
[INFO] [stderr] 4 | |     &[Some(7), Some(5), Some(3), None],
[INFO] [stderr] 5 | |     &[Some(2), Some(4), Some(6), Some(8)],
[INFO] [stderr] 6 | | ];
[INFO] [stderr]   | |__^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `SAMPLE_SPREADSHEET1`
[INFO] [stderr]   --> src/bin/aoc2.rs:8:1
[INFO] [stderr]    |
[INFO] [stderr] 8  | / const SAMPLE_SPREADSHEET1: &'static [&'static [u64]] = &[
[INFO] [stderr] 9  | |     &[5, 9, 2, 8],
[INFO] [stderr] 10 | |     &[9, 4, 7, 3],
[INFO] [stderr] 11 | |     &[3, 8, 6, 5],
[INFO] [stderr] 12 | | ];
[INFO] [stderr]    | |__^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `SAMPLE_SPREADSHEET`
[INFO] [stderr]  --> src/bin/aoc2.rs:2:1
[INFO] [stderr]   |
[INFO] [stderr] 2 | / const SAMPLE_SPREADSHEET: &'static [&'static [Option<u64>]] = &[
[INFO] [stderr] 3 | |     &[Some(5), Some(1), Some(9), Some(5)],
[INFO] [stderr] 4 | |     &[Some(7), Some(5), Some(3), None],
[INFO] [stderr] 5 | |     &[Some(2), Some(4), Some(6), Some(8)],
[INFO] [stderr] 6 | | ];
[INFO] [stderr]   | |__^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `SAMPLE_SPREADSHEET1`
[INFO] [stderr]   --> src/bin/aoc2.rs:8:1
[INFO] [stderr]    |
[INFO] [stderr] 8  | / const SAMPLE_SPREADSHEET1: &'static [&'static [u64]] = &[
[INFO] [stderr] 9  | |     &[5, 9, 2, 8],
[INFO] [stderr] 10 | |     &[9, 4, 7, 3],
[INFO] [stderr] 11 | |     &[3, 8, 6, 5],
[INFO] [stderr] 12 | | ];
[INFO] [stderr]    | |__^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.45s
[INFO] running `"docker" "inspect" "59ec211abfee1d77bcd18be19f9686ef4d80e988a6a0e97efd3297c206737aae"`
[INFO] running `"docker" "rm" "-f" "59ec211abfee1d77bcd18be19f9686ef4d80e988a6a0e97efd3297c206737aae"`
[INFO] [stdout] 59ec211abfee1d77bcd18be19f9686ef4d80e988a6a0e97efd3297c206737aae