[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/beta-1.38-1/sources/1.37.0/gh/kilork/google-codejam-2018-saving-the-universe-again"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/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/beta-1.38-1/sources/beta-2019-08-13/gh/kilork/google-codejam-2018-saving-the-universe-again"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/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 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of kilork/google-codejam-2018-saving-the-universe-again on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "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/beta-1.38-1/sources/1.37.0/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/beta-1.38-1/sources/beta-2019-08-13/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" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing kilork/google-codejam-2018-saving-the-universe-again against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/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=warn" "-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" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] 87bd98888ab8e7fda34a20952e39d1a642696fd4912e6c95ad0ead33bee9f315
[INFO] running `"docker" "start" "-a" "87bd98888ab8e7fda34a20952e39d1a642696fd4912e6c95ad0ead33bee9f315"`
[INFO] [stderr]    Compiling 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]     Finished dev [unoptimized + debuginfo] target(s) in 1.13s
[INFO] running `"docker" "inspect" "87bd98888ab8e7fda34a20952e39d1a642696fd4912e6c95ad0ead33bee9f315"`
[INFO] running `"docker" "rm" "-f" "87bd98888ab8e7fda34a20952e39d1a642696fd4912e6c95ad0ead33bee9f315"`
[INFO] [stdout] 87bd98888ab8e7fda34a20952e39d1a642696fd4912e6c95ad0ead33bee9f315
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/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=warn" "-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" "+beta-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] 7f14a4d7f708689e4b539fd2eec0ad5d74242d45ff953e7f770a55e8e4fab8e3
[INFO] running `"docker" "start" "-a" "7f14a4d7f708689e4b539fd2eec0ad5d74242d45ff953e7f770a55e8e4fab8e3"`
[INFO] [stderr]    Compiling 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]     Finished dev [unoptimized + debuginfo] target(s) in 0.68s
[INFO] running `"docker" "inspect" "7f14a4d7f708689e4b539fd2eec0ad5d74242d45ff953e7f770a55e8e4fab8e3"`
[INFO] running `"docker" "rm" "-f" "7f14a4d7f708689e4b539fd2eec0ad5d74242d45ff953e7f770a55e8e4fab8e3"`
[INFO] [stdout] 7f14a4d7f708689e4b539fd2eec0ad5d74242d45ff953e7f770a55e8e4fab8e3
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/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=warn" "-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" "+beta-2019-08-13" "test" "--frozen"`
[INFO] [stdout] 35c4c1a45290f26e59b904bd973346b88f0b8c2d1fc36ea74824d733d1fe5b0c
[INFO] running `"docker" "start" "-a" "35c4c1a45290f26e59b904bd973346b88f0b8c2d1fc36ea74824d733d1fe5b0c"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/saving_the_universe_again-80fbbac82b06302e
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "35c4c1a45290f26e59b904bd973346b88f0b8c2d1fc36ea74824d733d1fe5b0c"`
[INFO] running `"docker" "rm" "-f" "35c4c1a45290f26e59b904bd973346b88f0b8c2d1fc36ea74824d733d1fe5b0c"`
[INFO] [stdout] 35c4c1a45290f26e59b904bd973346b88f0b8c2d1fc36ea74824d733d1fe5b0c