[INFO] updating cached repository Xannden/gb
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/Xannden/gb
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/Xannden/gb" "work/ex/beta-1.38-1/sources/1.37.0/gh/Xannden/gb"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/Xannden/gb'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Xannden/gb" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Xannden/gb"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Xannden/gb'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 50cdf22858e5922e182db22c5393aa202c890ed4
[INFO] sha for GitHub repo Xannden/gb: 50cdf22858e5922e182db22c5393aa202c890ed4
[INFO] validating manifest of Xannden/gb 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 Xannden/gb 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 Xannden/gb
[INFO] finished frobbing Xannden/gb
[INFO] frobbed toml for Xannden/gb written to work/ex/beta-1.38-1/sources/1.37.0/gh/Xannden/gb/Cargo.toml
[INFO] started frobbing Xannden/gb
[INFO] finished frobbing Xannden/gb
[INFO] frobbed toml for Xannden/gb written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Xannden/gb/Cargo.toml
[INFO] crate Xannden/gb 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 Xannden/gb 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-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/Xannden/gb:/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] e6d619631781229536079e5d286338c343c7378cc1430f418437c757fd5afeca
[INFO] running `"docker" "start" "-a" "e6d619631781229536079e5d286338c343c7378cc1430f418437c757fd5afeca"`
[INFO] [stderr] warning: the cargo feature `edition` is now stable and is no longer necessary to be listed in the manifest
[INFO] [stderr]    Compiling gameboy v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unnecessary `unsafe` block
[INFO] [stderr]   --> src/cpu/register/mod.rs:52:9
[INFO] [stderr]    |
[INFO] [stderr] 52 |         unsafe {
[INFO] [stderr]    |         ^^^^^^ unnecessary `unsafe` block
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_unsafe)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.64s
[INFO] running `"docker" "inspect" "e6d619631781229536079e5d286338c343c7378cc1430f418437c757fd5afeca"`
[INFO] running `"docker" "rm" "-f" "e6d619631781229536079e5d286338c343c7378cc1430f418437c757fd5afeca"`
[INFO] [stdout] e6d619631781229536079e5d286338c343c7378cc1430f418437c757fd5afeca
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/Xannden/gb:/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] 5b3ba2c70ecd52dd685b3bce5ddc5a217f444543e9277cf95867cc1896a338d8
[INFO] running `"docker" "start" "-a" "5b3ba2c70ecd52dd685b3bce5ddc5a217f444543e9277cf95867cc1896a338d8"`
[INFO] [stderr] warning: the cargo feature `edition` is now stable and is no longer necessary to be listed in the manifest
[INFO] [stderr]    Compiling gameboy v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unnecessary `unsafe` block
[INFO] [stderr]   --> src/cpu/register/mod.rs:52:9
[INFO] [stderr]    |
[INFO] [stderr] 52 |         unsafe {
[INFO] [stderr]    |         ^^^^^^ unnecessary `unsafe` block
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_unsafe)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.54s
[INFO] running `"docker" "inspect" "5b3ba2c70ecd52dd685b3bce5ddc5a217f444543e9277cf95867cc1896a338d8"`
[INFO] running `"docker" "rm" "-f" "5b3ba2c70ecd52dd685b3bce5ddc5a217f444543e9277cf95867cc1896a338d8"`
[INFO] [stdout] 5b3ba2c70ecd52dd685b3bce5ddc5a217f444543e9277cf95867cc1896a338d8
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/Xannden/gb:/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] 7ed277dd71f9841911f2d8aae6518716b799682e13ad3c5cf63e14fde03df16f
[INFO] running `"docker" "start" "-a" "7ed277dd71f9841911f2d8aae6518716b799682e13ad3c5cf63e14fde03df16f"`
[INFO] [stderr] warning: the cargo feature `edition` is now stable and is no longer necessary to be listed in the manifest
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/gameboy-0b454ddef9fd6967
[INFO] [stderr]      Running /opt/crater/target/debug/deps/gameboy-775f3b74dafb11a5
[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] [stdout] 
[INFO] [stderr]    Doc-tests gameboy
[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] [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" "7ed277dd71f9841911f2d8aae6518716b799682e13ad3c5cf63e14fde03df16f"`
[INFO] running `"docker" "rm" "-f" "7ed277dd71f9841911f2d8aae6518716b799682e13ad3c5cf63e14fde03df16f"`
[INFO] [stdout] 7ed277dd71f9841911f2d8aae6518716b799682e13ad3c5cf63e14fde03df16f