[INFO] updating cached repository martindilling/pastel_blocks_2
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/martindilling/pastel_blocks_2
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/martindilling/pastel_blocks_2" "work/ex/beta-1.38-1/sources/1.37.0/gh/martindilling/pastel_blocks_2"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/martindilling/pastel_blocks_2'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/martindilling/pastel_blocks_2" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/martindilling/pastel_blocks_2"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/martindilling/pastel_blocks_2'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] a42e5cee010828b5bcade0de968adc298595e5dc
[INFO] sha for GitHub repo martindilling/pastel_blocks_2: a42e5cee010828b5bcade0de968adc298595e5dc
[INFO] validating manifest of martindilling/pastel_blocks_2 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 martindilling/pastel_blocks_2 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 martindilling/pastel_blocks_2
[INFO] finished frobbing martindilling/pastel_blocks_2
[INFO] frobbed toml for martindilling/pastel_blocks_2 written to work/ex/beta-1.38-1/sources/1.37.0/gh/martindilling/pastel_blocks_2/Cargo.toml
[INFO] started frobbing martindilling/pastel_blocks_2
[INFO] finished frobbing martindilling/pastel_blocks_2
[INFO] frobbed toml for martindilling/pastel_blocks_2 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/martindilling/pastel_blocks_2/Cargo.toml
[INFO] crate martindilling/pastel_blocks_2 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] [stderr] error: the lock file /mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/martindilling/pastel_blocks_2/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[INFO] the lockfile is outdated, regenerating it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" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[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 martindilling/pastel_blocks_2 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-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/martindilling/pastel_blocks_2:/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] 5e4f8dd42e642fed62d33650ec49e29c131116e80a20b0d6549cf7f3fffda28e
[INFO] running `"docker" "start" "-a" "5e4f8dd42e642fed62d33650ec49e29c131116e80a20b0d6549cf7f3fffda28e"`
[INFO] [stderr]    Compiling draw_state v0.4.0
[INFO] [stderr]    Compiling pistoncore-input v0.9.0
[INFO] [stderr]    Compiling freetype-rs v0.6.1
[INFO] [stderr]    Compiling image v0.7.2
[INFO] [stderr]    Compiling gfx_core v0.2.1
[INFO] [stderr]    Compiling pistoncore-window v0.16.0
[INFO] [stderr]    Compiling pistoncore-event_loop v0.19.0
[INFO] [stderr]    Compiling pistoncore-glutin_window v0.22.0
[INFO] [stderr]    Compiling piston v0.19.0
[INFO] [stderr]    Compiling gfx v0.10.2
[INFO] [stderr]    Compiling gfx_device_gl v0.9.0
[INFO] [stderr]    Compiling piston-gfx_texture v0.12.0
[INFO] [stderr]    Compiling piston2d-gfx_graphics v0.24.0
[INFO] [stderr]    Compiling piston_window v0.39.0
[INFO] [stderr]    Compiling pastel_blocks_2 v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] error: couldn't read src/../assets/tiles_16x16.png: No such file or directory (os error 2)
[INFO] [stderr]   --> src/game.rs:12:36
[INFO] [stderr]    |
[INFO] [stderr] 12 | static TILEMAP_16: &'static [u8] = include_bytes!("../assets/tiles_16x16.png");
[INFO] [stderr]    |                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel
[INFO] [stderr]  --> src/main.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(slice_patterns)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `image::RgbaImage`
[INFO] [stderr]  --> src/tilemap.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use image::RgbaImage;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `image::SubImage`
[INFO] [stderr]  --> src/tilemap.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use image::SubImage;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::path::PathBuf`
[INFO] [stderr]  --> src/texture_manager.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::path::PathBuf;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `find_folder::Search`
[INFO] [stderr]  --> src/texture_manager.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use find_folder::Search;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `map::BlockType`
[INFO] [stderr]  --> src/ui.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use map::BlockType;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `map::Color`
[INFO] [stderr]  --> src/ui.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use map::Color;
[INFO] [stderr]   |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::path::PathBuf`
[INFO] [stderr]   --> src/main.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 | use std::path::PathBuf;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0554`.
[INFO] [stderr] error: Could not compile `pastel_blocks_2`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "5e4f8dd42e642fed62d33650ec49e29c131116e80a20b0d6549cf7f3fffda28e"`
[INFO] running `"docker" "rm" "-f" "5e4f8dd42e642fed62d33650ec49e29c131116e80a20b0d6549cf7f3fffda28e"`
[INFO] [stdout] 5e4f8dd42e642fed62d33650ec49e29c131116e80a20b0d6549cf7f3fffda28e