[INFO] updating cached repository WatchMeCalculate/rustGboy
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/WatchMeCalculate/rustGboy
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/WatchMeCalculate/rustGboy" "work/ex/beta-1.38-1/sources/1.37.0/gh/WatchMeCalculate/rustGboy"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/WatchMeCalculate/rustGboy'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/WatchMeCalculate/rustGboy" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/WatchMeCalculate/rustGboy"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/WatchMeCalculate/rustGboy'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 0fb71b6fcd6d09c7f566ce3f841ed4994d47a38d
[INFO] sha for GitHub repo WatchMeCalculate/rustGboy: 0fb71b6fcd6d09c7f566ce3f841ed4994d47a38d
[INFO] validating manifest of WatchMeCalculate/rustGboy 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 WatchMeCalculate/rustGboy 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 WatchMeCalculate/rustGboy
[INFO] finished frobbing WatchMeCalculate/rustGboy
[INFO] frobbed toml for WatchMeCalculate/rustGboy written to work/ex/beta-1.38-1/sources/1.37.0/gh/WatchMeCalculate/rustGboy/Cargo.toml
[INFO] started frobbing WatchMeCalculate/rustGboy
[INFO] finished frobbing WatchMeCalculate/rustGboy
[INFO] frobbed toml for WatchMeCalculate/rustGboy written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/WatchMeCalculate/rustGboy/Cargo.toml
[INFO] crate WatchMeCalculate/rustGboy 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 WatchMeCalculate/rustGboy 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-0/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/WatchMeCalculate/rustGboy:/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] bd451927766015ca7ef9819e91845fa140201902f177a91fa215b8f879071e28
[INFO] running `"docker" "start" "-a" "bd451927766015ca7ef9819e91845fa140201902f177a91fa215b8f879071e28"`
[INFO] [stderr]    Compiling rugbe v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 |     file.read_to_end(&mut buffer);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.81s
[INFO] running `"docker" "inspect" "bd451927766015ca7ef9819e91845fa140201902f177a91fa215b8f879071e28"`
[INFO] running `"docker" "rm" "-f" "bd451927766015ca7ef9819e91845fa140201902f177a91fa215b8f879071e28"`
[INFO] [stdout] bd451927766015ca7ef9819e91845fa140201902f177a91fa215b8f879071e28
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/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/WatchMeCalculate/rustGboy:/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] faea40538a2cf1c60c2f5acfc350796bd4b73a7bbfc83ca53c312749a6ce7094
[INFO] running `"docker" "start" "-a" "faea40538a2cf1c60c2f5acfc350796bd4b73a7bbfc83ca53c312749a6ce7094"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling rugbe v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 |     file.read_to_end(&mut buffer);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.71s
[INFO] running `"docker" "inspect" "faea40538a2cf1c60c2f5acfc350796bd4b73a7bbfc83ca53c312749a6ce7094"`
[INFO] running `"docker" "rm" "-f" "faea40538a2cf1c60c2f5acfc350796bd4b73a7bbfc83ca53c312749a6ce7094"`
[INFO] [stdout] faea40538a2cf1c60c2f5acfc350796bd4b73a7bbfc83ca53c312749a6ce7094
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/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/WatchMeCalculate/rustGboy:/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] e77c8dc40427394e68b71d8f26f6785299d556a717961fe752a295f8871b084c
[INFO] running `"docker" "start" "-a" "e77c8dc40427394e68b71d8f26f6785299d556a717961fe752a295f8871b084c"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/rugbe-a3f3bdec2556677b
[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" "e77c8dc40427394e68b71d8f26f6785299d556a717961fe752a295f8871b084c"`
[INFO] running `"docker" "rm" "-f" "e77c8dc40427394e68b71d8f26f6785299d556a717961fe752a295f8871b084c"`
[INFO] [stdout] e77c8dc40427394e68b71d8f26f6785299d556a717961fe752a295f8871b084c