[INFO] fetching crate flappy 0.4.0...
[INFO] extracting crate flappy 0.4.0 into work/ex/beta-1.37-6/sources/1.36.0/reg/flappy/0.4.0
[INFO] extracting crate flappy 0.4.0 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/flappy/0.4.0
[INFO] validating manifest of flappy-0.4.0 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 flappy-0.4.0 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 flappy-0.4.0
[INFO] finished frobbing flappy-0.4.0
[INFO] frobbed toml for flappy-0.4.0 written to work/ex/beta-1.37-6/sources/1.36.0/reg/flappy/0.4.0/Cargo.toml
[INFO] started frobbing flappy-0.4.0
[INFO] finished frobbing flappy-0.4.0
[INFO] frobbed toml for flappy-0.4.0 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/flappy/0.4.0/Cargo.toml
[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 flappy-0.4.0 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-6/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/flappy/0.4.0:/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] f2700754c2eda4a8047e405604f31c05df3e34ddc0dabc2233d70f0df66090f6
[INFO] running `"docker" "start" "-a" "f2700754c2eda4a8047e405604f31c05df3e34ddc0dabc2233d70f0df66090f6"`
[INFO] [stderr]    Compiling pistoncore-window v0.43.0
[INFO] [stderr]    Compiling piston-ai_behavior v0.31.0
[INFO] [stderr]    Compiling piston2d-gfx_graphics v0.61.0
[INFO] [stderr]    Compiling pistoncore-event_loop v0.48.0
[INFO] [stderr]    Compiling pistoncore-glutin_window v0.62.1
[INFO] [stderr]    Compiling piston v0.48.0
[INFO] [stderr]    Compiling piston2d-sprite v0.55.0
[INFO] [stderr]    Compiling piston_window v0.99.0
[INFO] [stderr]    Compiling flappy v0.4.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `image::DynamicImage::ImageRgba8`
[INFO] [stderr]  --> src/tex_loader.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use image::DynamicImage::ImageRgba8;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.40s
[INFO] running `"docker" "inspect" "f2700754c2eda4a8047e405604f31c05df3e34ddc0dabc2233d70f0df66090f6"`
[INFO] running `"docker" "rm" "-f" "f2700754c2eda4a8047e405604f31c05df3e34ddc0dabc2233d70f0df66090f6"`
[INFO] [stdout] f2700754c2eda4a8047e405604f31c05df3e34ddc0dabc2233d70f0df66090f6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-6/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/flappy/0.4.0:/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] 41e135e97cd54cbd7424c6085cb8b244a6f92f3ad5bac88780f85b745f77a8d6
[INFO] running `"docker" "start" "-a" "41e135e97cd54cbd7424c6085cb8b244a6f92f3ad5bac88780f85b745f77a8d6"`
[INFO] [stderr]    Compiling flappy v0.4.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `image::DynamicImage::ImageRgba8`
[INFO] [stderr]  --> src/tex_loader.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use image::DynamicImage::ImageRgba8;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.79s
[INFO] running `"docker" "inspect" "41e135e97cd54cbd7424c6085cb8b244a6f92f3ad5bac88780f85b745f77a8d6"`
[INFO] running `"docker" "rm" "-f" "41e135e97cd54cbd7424c6085cb8b244a6f92f3ad5bac88780f85b745f77a8d6"`
[INFO] [stdout] 41e135e97cd54cbd7424c6085cb8b244a6f92f3ad5bac88780f85b745f77a8d6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-6/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/flappy/0.4.0:/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] 18bfecd03aec384fa8bc9c6b67d07def87b318fbc7e8b67b750672a0c913c92a
[INFO] running `"docker" "start" "-a" "18bfecd03aec384fa8bc9c6b67d07def87b318fbc7e8b67b750672a0c913c92a"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.10s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/flappy-69e4138ed0f3b22f
[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" "18bfecd03aec384fa8bc9c6b67d07def87b318fbc7e8b67b750672a0c913c92a"`
[INFO] running `"docker" "rm" "-f" "18bfecd03aec384fa8bc9c6b67d07def87b318fbc7e8b67b750672a0c913c92a"`
[INFO] [stdout] 18bfecd03aec384fa8bc9c6b67d07def87b318fbc7e8b67b750672a0c913c92a