[INFO] updating cached repository belfz/piston_snake
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/belfz/piston_snake
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/belfz/piston_snake" "work/ex/beta-1.38-1/sources/1.37.0/gh/belfz/piston_snake"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/belfz/piston_snake'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/belfz/piston_snake" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/belfz/piston_snake"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/belfz/piston_snake'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] c41b83c205017aa4253345da9a775eaf88551ddb
[INFO] sha for GitHub repo belfz/piston_snake: c41b83c205017aa4253345da9a775eaf88551ddb
[INFO] validating manifest of belfz/piston_snake 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 belfz/piston_snake 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 belfz/piston_snake
[INFO] finished frobbing belfz/piston_snake
[INFO] frobbed toml for belfz/piston_snake written to work/ex/beta-1.38-1/sources/1.37.0/gh/belfz/piston_snake/Cargo.toml
[INFO] started frobbing belfz/piston_snake
[INFO] finished frobbing belfz/piston_snake
[INFO] frobbed toml for belfz/piston_snake written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/belfz/piston_snake/Cargo.toml
[INFO] crate belfz/piston_snake 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 belfz/piston_snake against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/belfz/piston_snake:/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-2019-08-13" "build" "--frozen"`
[INFO] [stdout] 4de050d1dab8c030f481d469773c6396602b9aea085bfb20161224eab2683c05
[INFO] running `"docker" "start" "-a" "4de050d1dab8c030f481d469773c6396602b9aea085bfb20161224eab2683c05"`
[INFO] [stderr]    Compiling serde v1.0.18
[INFO] [stderr]    Compiling serde_json v0.9.10
[INFO] [stderr]    Compiling shared_library v0.1.7
[INFO] [stderr]    Compiling itertools v0.5.10
[INFO] [stderr]    Compiling deflate v0.7.16
[INFO] [stderr]    Compiling phf_generator v0.7.21
[INFO] [stderr]    Compiling tempfile v2.1.6
[INFO] [stderr]    Compiling glutin v0.10.0
[INFO] [stderr]    Compiling gfx_gl v0.3.1
[INFO] [stderr]    Compiling x11-dl v2.15.0
[INFO] [stderr]    Compiling phf_codegen v0.7.21
[INFO] [stderr]    Compiling osmesa-sys v0.1.2
[INFO] [stderr]    Compiling fs2 v0.2.5
[INFO] [stderr]    Compiling serde_derive v1.0.18
[INFO] [stderr]    Compiling jpeg-decoder v0.1.13
[INFO] [stderr]    Compiling piston2d-graphics v0.23.0
[INFO] [stderr]    Compiling png v0.11.0
[INFO] [stderr]    Compiling target_build_utils v0.3.1
[INFO] [stderr]    Compiling derivative v1.0.0
[INFO] [stderr]    Compiling memmap v0.4.0
[INFO] [stderr]    Compiling image v0.17.0
[INFO] [stderr]    Compiling pistoncore-input v0.20.0
[INFO] [stderr]    Compiling gfx_core v0.7.2
[INFO] [stderr]    Compiling pistoncore-window v0.30.0
[INFO] [stderr]    Compiling libloading v0.3.4
[INFO] [stderr]    Compiling pistoncore-event_loop v0.35.0
[INFO] [stderr]    Compiling dlib v0.3.1
[INFO] [stderr]    Compiling piston v0.35.0
[INFO] [stderr]    Compiling wayland-sys v0.9.10
[INFO] [stderr]    Compiling wayland-client v0.9.10
[INFO] [stderr]    Compiling wayland-protocols v0.9.10
[INFO] [stderr]    Compiling wayland-kbd v0.9.1
[INFO] [stderr]    Compiling wayland-window v0.8.0
[INFO] [stderr]    Compiling winit v0.8.3
[INFO] [stderr]    Compiling pistoncore-glutin_window v0.42.0
[INFO] [stderr]    Compiling gfx v0.16.1
[INFO] [stderr]    Compiling gfx_device_gl v0.14.4
[INFO] [stderr]    Compiling piston-gfx_texture v0.29.0
[INFO] [stderr]    Compiling piston2d-gfx_graphics v0.46.0
[INFO] [stderr]    Compiling piston_window v0.73.0
[INFO] [stderr]    Compiling piston_snake v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 16s
[INFO] running `"docker" "inspect" "4de050d1dab8c030f481d469773c6396602b9aea085bfb20161224eab2683c05"`
[INFO] running `"docker" "rm" "-f" "4de050d1dab8c030f481d469773c6396602b9aea085bfb20161224eab2683c05"`
[INFO] [stdout] 4de050d1dab8c030f481d469773c6396602b9aea085bfb20161224eab2683c05
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/belfz/piston_snake:/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-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] cd7c9f3e3e1d358dec5caf54ff95676ed5506dff3f2cc7ecd644c62f092cda3c
[INFO] running `"docker" "start" "-a" "cd7c9f3e3e1d358dec5caf54ff95676ed5506dff3f2cc7ecd644c62f092cda3c"`
[INFO] [stderr]    Compiling piston_snake v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.17s
[INFO] running `"docker" "inspect" "cd7c9f3e3e1d358dec5caf54ff95676ed5506dff3f2cc7ecd644c62f092cda3c"`
[INFO] running `"docker" "rm" "-f" "cd7c9f3e3e1d358dec5caf54ff95676ed5506dff3f2cc7ecd644c62f092cda3c"`
[INFO] [stdout] cd7c9f3e3e1d358dec5caf54ff95676ed5506dff3f2cc7ecd644c62f092cda3c
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/belfz/piston_snake:/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-2019-08-13" "test" "--frozen"`
[INFO] [stdout] 53a7a3d7647d818df8a94e484dbe1df87beb48394b0a7536db9f99538bfc944e
[INFO] running `"docker" "start" "-a" "53a7a3d7647d818df8a94e484dbe1df87beb48394b0a7536db9f99538bfc944e"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.16s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/piston_snake-0bc43bc4ac4c3fa8
[INFO] [stdout] 
[INFO] [stdout] running 17 tests
[INFO] [stdout] test direction::test::should_return_down_as_opposite_to_up ... ok
[INFO] [stdout] test direction::test::should_return_left_as_opposite_to_right ... ok
[INFO] [stdout] test direction::test::should_return_right_as_opposite_to_left ... ok
[INFO] [stdout] test snake::test::eat_food_should_add_head_and_advance ... ok
[INFO] [stdout] test food::test::next_rand_food_should_return_food_with_position_within_bounds ... ok
[INFO] [stdout] test direction::test::should_return_up_as_opposite_to_down ... ok
[INFO] [stdout] test snake::test::should_flip_to_other_side_when_advance_down_over_the_boundary ... ok
[INFO] [stdout] test snake::test::should_flip_to_other_side_when_advance_left_over_the_boundary ... ok
[INFO] [stdout] test snake::test::should_flip_to_other_side_when_advance_right_over_the_boundary ... ok
[INFO] [stdout] test snake::test::should_create_new_snake ... ok
[INFO] [stdout] test snake::test::has_collision_should_return_true_when_head_collides_with_at_least_one_segment ... ok
[INFO] [stdout] test snake::test::has_collision_should_return_false_when_head_does_not_collide ... ok
[INFO] [stdout] test snake::test::should_decrease_new_segment_on_y_axis_when_advance_up ... ok
[INFO] [stdout] test snake::test::should_change_direction_from_left_to_up ... ok
[INFO] [stdout] test snake::test::should_flip_to_other_side_when_advance_up_over_the_boundary ... ok
[INFO] [stdout] test snake::test::should_not_change_direction_if_new_direction_is_opposite_to_current ... ok
[INFO] [stdout] test snake::test::should_increase_new_segment_on_y_axis_when_advance_down ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 17 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/piston_snake-142e61ff11ad0931
[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 piston_snake
[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" "53a7a3d7647d818df8a94e484dbe1df87beb48394b0a7536db9f99538bfc944e"`
[INFO] running `"docker" "rm" "-f" "53a7a3d7647d818df8a94e484dbe1df87beb48394b0a7536db9f99538bfc944e"`
[INFO] [stdout] 53a7a3d7647d818df8a94e484dbe1df87beb48394b0a7536db9f99538bfc944e