[INFO] updating cached repository cjmochrie/Advent-of-Code-2017
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/cjmochrie/Advent-of-Code-2017
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/cjmochrie/Advent-of-Code-2017" "work/ex/pr-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/cjmochrie/Advent-of-Code-2017"`
[INFO] [stderr] Cloning into 'work/ex/pr-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/cjmochrie/Advent-of-Code-2017'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/cjmochrie/Advent-of-Code-2017" "work/ex/pr-60039-1/sources/try#99a7498759a22b5684caf798a98b7e90ad9d2443/gh/cjmochrie/Advent-of-Code-2017"`
[INFO] [stderr] Cloning into 'work/ex/pr-60039-1/sources/try#99a7498759a22b5684caf798a98b7e90ad9d2443/gh/cjmochrie/Advent-of-Code-2017'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 4dee8ec92972b670e8feb5086cb2db7381608423
[INFO] sha for GitHub repo cjmochrie/Advent-of-Code-2017: 4dee8ec92972b670e8feb5086cb2db7381608423
[INFO] validating manifest of cjmochrie/Advent-of-Code-2017 on toolchain master#e305df1846a6d985315917ae0c81b74af8b4e641
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e305df1846a6d985315917ae0c81b74af8b4e641-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of cjmochrie/Advent-of-Code-2017 on toolchain try#99a7498759a22b5684caf798a98b7e90ad9d2443
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+99a7498759a22b5684caf798a98b7e90ad9d2443-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing cjmochrie/Advent-of-Code-2017
[INFO] finished frobbing cjmochrie/Advent-of-Code-2017
[INFO] frobbed toml for cjmochrie/Advent-of-Code-2017 written to work/ex/pr-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/cjmochrie/Advent-of-Code-2017/Cargo.toml
[INFO] started frobbing cjmochrie/Advent-of-Code-2017
[INFO] finished frobbing cjmochrie/Advent-of-Code-2017
[INFO] frobbed toml for cjmochrie/Advent-of-Code-2017 written to work/ex/pr-60039-1/sources/try#99a7498759a22b5684caf798a98b7e90ad9d2443/gh/cjmochrie/Advent-of-Code-2017/Cargo.toml
[INFO] crate cjmochrie/Advent-of-Code-2017 already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e305df1846a6d985315917ae0c81b74af8b4e641-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on the registry index
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+99a7498759a22b5684caf798a98b7e90ad9d2443-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on the registry index
[INFO] checking cjmochrie/Advent-of-Code-2017 against try#99a7498759a22b5684caf798a98b7e90ad9d2443 for pr-60039-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-60039-1/worker-4/try#99a7498759a22b5684caf798a98b7e90ad9d2443:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-60039-1/sources/try#99a7498759a22b5684caf798a98b7e90ad9d2443/gh/cjmochrie/Advent-of-Code-2017:/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" "+99a7498759a22b5684caf798a98b7e90ad9d2443-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 5c7f2a73ff1cf50e76c25abfa73bbdb9ef99db1d0e13bffd3038cc0816772432
[INFO] running `"docker" "start" "-a" "5c7f2a73ff1cf50e76c25abfa73bbdb9ef99db1d0e13bffd3038cc0816772432"`
[INFO] [stderr]     Checking advent_of_code v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: the item `Op` is imported redundantly
[INFO] [stderr]   --> src/problems/day_8.rs:98:7
[INFO] [stderr]    |
[INFO] [stderr] 36 | / enum Op {
[INFO] [stderr] 37 | |   Inc,
[INFO] [stderr] 38 | |   Dec,
[INFO] [stderr] 39 | | }
[INFO] [stderr]    | |_- the item `Op` is already defined here
[INFO] [stderr] ...
[INFO] [stderr] 98 |     use self::Op;
[INFO] [stderr]    |         ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: the item `Op` is imported redundantly
[INFO] [stderr]   --> src/problems/day_8.rs:98:7
[INFO] [stderr]    |
[INFO] [stderr] 36 | / enum Op {
[INFO] [stderr] 37 | |   Inc,
[INFO] [stderr] 38 | |   Dec,
[INFO] [stderr] 39 | | }
[INFO] [stderr]    | |_- the item `Op` is already defined here
[INFO] [stderr] ...
[INFO] [stderr] 98 |     use self::Op;
[INFO] [stderr]    |         ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.45s
[INFO] running `"docker" "inspect" "5c7f2a73ff1cf50e76c25abfa73bbdb9ef99db1d0e13bffd3038cc0816772432"`
[INFO] running `"docker" "rm" "-f" "5c7f2a73ff1cf50e76c25abfa73bbdb9ef99db1d0e13bffd3038cc0816772432"`
[INFO] [stdout] 5c7f2a73ff1cf50e76c25abfa73bbdb9ef99db1d0e13bffd3038cc0816772432