[INFO] updating cached repository ShotaroTsuji/breakout
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/ShotaroTsuji/breakout
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/ShotaroTsuji/breakout" "work/ex/beta-1.38-1/sources/1.37.0/gh/ShotaroTsuji/breakout"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/ShotaroTsuji/breakout'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/ShotaroTsuji/breakout" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/ShotaroTsuji/breakout"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/ShotaroTsuji/breakout'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 20117065dd6ecab917eea6ba07064bff6a8e2e94
[INFO] sha for GitHub repo ShotaroTsuji/breakout: 20117065dd6ecab917eea6ba07064bff6a8e2e94
[INFO] validating manifest of ShotaroTsuji/breakout 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 ShotaroTsuji/breakout 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 ShotaroTsuji/breakout
[INFO] finished frobbing ShotaroTsuji/breakout
[INFO] frobbed toml for ShotaroTsuji/breakout written to work/ex/beta-1.38-1/sources/1.37.0/gh/ShotaroTsuji/breakout/Cargo.toml
[INFO] started frobbing ShotaroTsuji/breakout
[INFO] finished frobbing ShotaroTsuji/breakout
[INFO] frobbed toml for ShotaroTsuji/breakout written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/ShotaroTsuji/breakout/Cargo.toml
[INFO] crate ShotaroTsuji/breakout 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 ShotaroTsuji/breakout 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-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/ShotaroTsuji/breakout:/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] 0e671c0bc1f4bdddc75b45ef0fe814155c175c6dda1aa0879353756254b2dac7
[INFO] running `"docker" "start" "-a" "0e671c0bc1f4bdddc75b45ef0fe814155c175c6dda1aa0879353756254b2dac7"`
[INFO] [stderr]    Compiling gl_generator v0.10.0
[INFO] [stderr]    Compiling wayland-sys v0.21.11
[INFO] [stderr]    Compiling andrew v0.2.0
[INFO] [stderr]    Compiling wayland-commons v0.21.11
[INFO] [stderr]    Compiling glutin v0.19.0
[INFO] [stderr]    Compiling glium v0.23.0
[INFO] [stderr]    Compiling wayland-client v0.21.11
[INFO] [stderr]    Compiling wayland-protocols v0.21.11
[INFO] [stderr]    Compiling smithay-client-toolkit v0.4.5
[INFO] [stderr]    Compiling winit v0.18.1
[INFO] [stderr]    Compiling breakout v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `child`
[INFO] [stderr]    --> src/main.rs:122:9
[INFO] [stderr]     |
[INFO] [stderr] 122 |     let child = {
[INFO] [stderr]     |         ^^^^^ help: consider prefixing with an underscore: `_child`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 02s
[INFO] running `"docker" "inspect" "0e671c0bc1f4bdddc75b45ef0fe814155c175c6dda1aa0879353756254b2dac7"`
[INFO] running `"docker" "rm" "-f" "0e671c0bc1f4bdddc75b45ef0fe814155c175c6dda1aa0879353756254b2dac7"`
[INFO] [stdout] 0e671c0bc1f4bdddc75b45ef0fe814155c175c6dda1aa0879353756254b2dac7
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/ShotaroTsuji/breakout:/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] 80bd3ed13c2a7713ebd354f7556cff6af63e2b79b50c296b6d65773b370322bf
[INFO] running `"docker" "start" "-a" "80bd3ed13c2a7713ebd354f7556cff6af63e2b79b50c296b6d65773b370322bf"`
[INFO] [stderr]    Compiling breakout v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `child`
[INFO] [stderr]    --> src/main.rs:122:9
[INFO] [stderr]     |
[INFO] [stderr] 122 |     let child = {
[INFO] [stderr]     |         ^^^^^ help: consider prefixing with an underscore: `_child`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.55s
[INFO] running `"docker" "inspect" "80bd3ed13c2a7713ebd354f7556cff6af63e2b79b50c296b6d65773b370322bf"`
[INFO] running `"docker" "rm" "-f" "80bd3ed13c2a7713ebd354f7556cff6af63e2b79b50c296b6d65773b370322bf"`
[INFO] [stdout] 80bd3ed13c2a7713ebd354f7556cff6af63e2b79b50c296b6d65773b370322bf
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/ShotaroTsuji/breakout:/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] 477acce95cff50597f85ccef4df857ddadbad7793a3fb0f1516acc27355dfe33
[INFO] running `"docker" "start" "-a" "477acce95cff50597f85ccef4df857ddadbad7793a3fb0f1516acc27355dfe33"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.12s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/breakout-8d6ade32e228da7d
[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] [stderr]      Running /opt/crater/target/debug/deps/breakout-8b3843148d2fb0e6
[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] [stderr]    Doc-tests breakout
[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" "477acce95cff50597f85ccef4df857ddadbad7793a3fb0f1516acc27355dfe33"`
[INFO] running `"docker" "rm" "-f" "477acce95cff50597f85ccef4df857ddadbad7793a3fb0f1516acc27355dfe33"`
[INFO] [stdout] 477acce95cff50597f85ccef4df857ddadbad7793a3fb0f1516acc27355dfe33