[INFO] crate ryb_game 0.2.24 is already in cache
[INFO] extracting crate ryb_game 0.2.24 into work/ex/beta-1.37-6/sources/1.36.0/reg/ryb_game/0.2.24
[INFO] extracting crate ryb_game 0.2.24 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/ryb_game/0.2.24
[INFO] validating manifest of ryb_game-0.2.24 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 ryb_game-0.2.24 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 ryb_game-0.2.24
[INFO] finished frobbing ryb_game-0.2.24
[INFO] frobbed toml for ryb_game-0.2.24 written to work/ex/beta-1.37-6/sources/1.36.0/reg/ryb_game/0.2.24/Cargo.toml
[INFO] started frobbing ryb_game-0.2.24
[INFO] finished frobbing ryb_game-0.2.24
[INFO] frobbed toml for ryb_game-0.2.24 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/ryb_game/0.2.24/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 ryb_game-0.2.24 against 1.36.0 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/ryb_game/0.2.24:/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" "+1.36.0" "build" "--frozen"`
[INFO] [stdout] 932661b15a732bb9440eb626d8ccd503f7b476867225da03d130d59573d7ace9
[INFO] running `"docker" "start" "-a" "932661b15a732bb9440eb626d8ccd503f7b476867225da03d130d59573d7ace9"`
[INFO] [stderr]    Compiling pistoncore-input v0.17.1
[INFO] [stderr]    Compiling gfx_core v0.6.1
[INFO] [stderr]    Compiling image v0.12.4
[INFO] [stderr]    Compiling pistoncore-window v0.26.2
[INFO] [stderr]    Compiling pistoncore-event_loop v0.31.4
[INFO] [stderr]    Compiling pistoncore-glutin_window v0.35.1
[INFO] [stderr]    Compiling piston v0.31.4
[INFO] [stderr]    Compiling piston2d-opengl_graphics v0.42.1
[INFO] [stderr]    Compiling gfx v0.14.1
[INFO] [stderr]    Compiling gfx_device_gl v0.13.1
[INFO] [stderr]    Compiling piston-gfx_texture v0.22.1
[INFO] [stderr]    Compiling piston2d-gfx_graphics v0.38.0
[INFO] [stderr]    Compiling piston_window v0.64.0
[INFO] [stderr]    Compiling ryb_game v0.2.24 (/opt/crater/workdir)
[INFO] [stderr] error[E0463]: can't find crate for `alloc_system`
[INFO] [stderr]  --> src/main.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | extern crate alloc_system;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0463`.
[INFO] [stderr] error: Could not compile `ryb_game`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "932661b15a732bb9440eb626d8ccd503f7b476867225da03d130d59573d7ace9"`
[INFO] running `"docker" "rm" "-f" "932661b15a732bb9440eb626d8ccd503f7b476867225da03d130d59573d7ace9"`
[INFO] [stdout] 932661b15a732bb9440eb626d8ccd503f7b476867225da03d130d59573d7ace9