[INFO] updating cached repository kilork/google-codejam-2018-saving-the-universe-again
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/kilork/google-codejam-2018-saving-the-universe-again
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/kilork/google-codejam-2018-saving-the-universe-again" "work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/gh/kilork/google-codejam-2018-saving-the-universe-again"`
[INFO] [stderr] Cloning into 'work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/gh/kilork/google-codejam-2018-saving-the-universe-again'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/kilork/google-codejam-2018-saving-the-universe-again" "work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/gh/kilork/google-codejam-2018-saving-the-universe-again"`
[INFO] [stderr] Cloning into 'work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/gh/kilork/google-codejam-2018-saving-the-universe-again'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 6a79d07a407810271c469ec0d708fcd0bc49c709
[INFO] sha for GitHub repo kilork/google-codejam-2018-saving-the-universe-again: 6a79d07a407810271c469ec0d708fcd0bc49c709
[INFO] validating manifest of kilork/google-codejam-2018-saving-the-universe-again on toolchain master#452087b4bf18cece2d52d7cd8c9147195e5404bf
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+452087b4bf18cece2d52d7cd8c9147195e5404bf-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of kilork/google-codejam-2018-saving-the-universe-again on toolchain try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+757dacae0a9f1b46b3ab58a1f1232332e8fc7dab-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing kilork/google-codejam-2018-saving-the-universe-again
[INFO] finished frobbing kilork/google-codejam-2018-saving-the-universe-again
[INFO] frobbed toml for kilork/google-codejam-2018-saving-the-universe-again written to work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/gh/kilork/google-codejam-2018-saving-the-universe-again/Cargo.toml
[INFO] started frobbing kilork/google-codejam-2018-saving-the-universe-again
[INFO] finished frobbing kilork/google-codejam-2018-saving-the-universe-again
[INFO] frobbed toml for kilork/google-codejam-2018-saving-the-universe-again written to work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/gh/kilork/google-codejam-2018-saving-the-universe-again/Cargo.toml
[INFO] crate kilork/google-codejam-2018-saving-the-universe-again already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+452087b4bf18cece2d52d7cd8c9147195e5404bf-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+757dacae0a9f1b46b3ab58a1f1232332e8fc7dab-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking kilork/google-codejam-2018-saving-the-universe-again against try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab for pr-63247
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63247/worker-3/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/gh/kilork/google-codejam-2018-saving-the-universe-again:/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" "+757dacae0a9f1b46b3ab58a1f1232332e8fc7dab-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 7d906fab48826b1eb46b387fa8b4ceaca8f84d723ebe4a26b497eb6b942b95ac
[INFO] running `"docker" "start" "-a" "7d906fab48826b1eb46b387fa8b4ceaca8f84d723ebe4a26b497eb6b942b95ac"`
[INFO] [stderr]     Checking saving-the-universe-again v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:13:13
[INFO] [stderr]    |
[INFO] [stderr] 13 |         let mut hackable = parse_program(program);
[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/main.rs:13:13
[INFO] [stderr]    |
[INFO] [stderr] 13 |         let mut hackable = parse_program(program);
[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 0.54s
[INFO] running `"docker" "inspect" "7d906fab48826b1eb46b387fa8b4ceaca8f84d723ebe4a26b497eb6b942b95ac"`
[INFO] running `"docker" "rm" "-f" "7d906fab48826b1eb46b387fa8b4ceaca8f84d723ebe4a26b497eb6b942b95ac"`
[INFO] [stdout] 7d906fab48826b1eb46b387fa8b4ceaca8f84d723ebe4a26b497eb6b942b95ac