[INFO] updating cached repository dunnker/tetris-piston
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/dunnker/tetris-piston
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/dunnker/tetris-piston" "work/ex/beta-1.37-6/sources/1.36.0/gh/dunnker/tetris-piston"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/dunnker/tetris-piston'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/dunnker/tetris-piston" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/dunnker/tetris-piston"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/dunnker/tetris-piston'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 81062a6bec294a788e43b0fe8d18ea7da47af27f
[INFO] sha for GitHub repo dunnker/tetris-piston: 81062a6bec294a788e43b0fe8d18ea7da47af27f
[INFO] validating manifest of dunnker/tetris-piston on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of dunnker/tetris-piston on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing dunnker/tetris-piston
[INFO] finished frobbing dunnker/tetris-piston
[INFO] frobbed toml for dunnker/tetris-piston written to work/ex/beta-1.37-6/sources/1.36.0/gh/dunnker/tetris-piston/Cargo.toml
[INFO] started frobbing dunnker/tetris-piston
[INFO] finished frobbing dunnker/tetris-piston
[INFO] frobbed toml for dunnker/tetris-piston written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/dunnker/tetris-piston/Cargo.toml
[INFO] crate dunnker/tetris-piston already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] error: the lock file /mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/dunnker/tetris-piston/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing dunnker/tetris-piston against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-3/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/dunnker/tetris-piston:/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-2019-07-23" "build" "--frozen"`
[INFO] [stdout] 90014872f5b87fbf953229cccd7284e086bd1eaca118eb436ae79a82290661cf
[INFO] running `"docker" "start" "-a" "90014872f5b87fbf953229cccd7284e086bd1eaca118eb436ae79a82290661cf"`
[INFO] [stderr]    Compiling tetris-piston v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `AdvancedWindow`
[INFO] [stderr]  --> src/main.rs:9:23
[INFO] [stderr]   |
[INFO] [stderr] 9 | use piston::window::{ AdvancedWindow, WindowSettings };
[INFO] [stderr]   |                       ^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.33s
[INFO] running `"docker" "inspect" "90014872f5b87fbf953229cccd7284e086bd1eaca118eb436ae79a82290661cf"`
[INFO] running `"docker" "rm" "-f" "90014872f5b87fbf953229cccd7284e086bd1eaca118eb436ae79a82290661cf"`
[INFO] [stdout] 90014872f5b87fbf953229cccd7284e086bd1eaca118eb436ae79a82290661cf
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-3/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/dunnker/tetris-piston:/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-2019-07-23" "test" "--frozen" "--no-run"`
[INFO] [stdout] eadf8de21bed4ceba7384759a8b8109b694524494670dd6f087f9d59af9bcd22
[INFO] running `"docker" "start" "-a" "eadf8de21bed4ceba7384759a8b8109b694524494670dd6f087f9d59af9bcd22"`
[INFO] [stderr]    Compiling tetris-piston v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `AdvancedWindow`
[INFO] [stderr]  --> src/main.rs:9:23
[INFO] [stderr]   |
[INFO] [stderr] 9 | use piston::window::{ AdvancedWindow, WindowSettings };
[INFO] [stderr]   |                       ^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.55s
[INFO] running `"docker" "inspect" "eadf8de21bed4ceba7384759a8b8109b694524494670dd6f087f9d59af9bcd22"`
[INFO] running `"docker" "rm" "-f" "eadf8de21bed4ceba7384759a8b8109b694524494670dd6f087f9d59af9bcd22"`
[INFO] [stdout] eadf8de21bed4ceba7384759a8b8109b694524494670dd6f087f9d59af9bcd22
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-3/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/dunnker/tetris-piston:/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-2019-07-23" "test" "--frozen"`
[INFO] [stdout] 97f8d1f7911a19fdbcaef9e03b7df70d5509f14239f070384ad098dbb6328e5f
[INFO] running `"docker" "start" "-a" "97f8d1f7911a19fdbcaef9e03b7df70d5509f14239f070384ad098dbb6328e5f"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.14s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/tetris_piston-fac1f2e72f5397fe
[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" "97f8d1f7911a19fdbcaef9e03b7df70d5509f14239f070384ad098dbb6328e5f"`
[INFO] running `"docker" "rm" "-f" "97f8d1f7911a19fdbcaef9e03b7df70d5509f14239f070384ad098dbb6328e5f"`
[INFO] [stdout] 97f8d1f7911a19fdbcaef9e03b7df70d5509f14239f070384ad098dbb6328e5f