[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 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] d02c85b6583617ce71bd07a2f3fcc8970aa41bdfcaae520df1df31fd1138a3c6
[INFO] running `"docker" "start" "-a" "d02c85b6583617ce71bd07a2f3fcc8970aa41bdfcaae520df1df31fd1138a3c6"`
[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 0.77s
[INFO] running `"docker" "inspect" "d02c85b6583617ce71bd07a2f3fcc8970aa41bdfcaae520df1df31fd1138a3c6"`
[INFO] running `"docker" "rm" "-f" "d02c85b6583617ce71bd07a2f3fcc8970aa41bdfcaae520df1df31fd1138a3c6"`
[INFO] [stdout] d02c85b6583617ce71bd07a2f3fcc8970aa41bdfcaae520df1df31fd1138a3c6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 305d38cef60d54ab3369cf8cdb521f2181b9d07acb2394a324858e56bfa52288
[INFO] running `"docker" "start" "-a" "305d38cef60d54ab3369cf8cdb521f2181b9d07acb2394a324858e56bfa52288"`
[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 0.56s
[INFO] running `"docker" "inspect" "305d38cef60d54ab3369cf8cdb521f2181b9d07acb2394a324858e56bfa52288"`
[INFO] running `"docker" "rm" "-f" "305d38cef60d54ab3369cf8cdb521f2181b9d07acb2394a324858e56bfa52288"`
[INFO] [stdout] 305d38cef60d54ab3369cf8cdb521f2181b9d07acb2394a324858e56bfa52288
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/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" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] 0bf6c018b59df148a8cbfb563a028efdef3e93a213e2011ea4de96dad4cfd79e
[INFO] running `"docker" "start" "-a" "0bf6c018b59df148a8cbfb563a028efdef3e93a213e2011ea4de96dad4cfd79e"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/rugbe-1348811add4808b0
[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" "0bf6c018b59df148a8cbfb563a028efdef3e93a213e2011ea4de96dad4cfd79e"`
[INFO] running `"docker" "rm" "-f" "0bf6c018b59df148a8cbfb563a028efdef3e93a213e2011ea4de96dad4cfd79e"`
[INFO] [stdout] 0bf6c018b59df148a8cbfb563a028efdef3e93a213e2011ea4de96dad4cfd79e