[INFO] crate rmatrix 0.1.1 is already in cache
[INFO] extracting crate rmatrix 0.1.1 into work/ex/beta-1.38-1/sources/1.37.0/reg/rmatrix/0.1.1
[INFO] extracting crate rmatrix 0.1.1 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/rmatrix/0.1.1
[INFO] validating manifest of rmatrix-0.1.1 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 rmatrix-0.1.1 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 rmatrix-0.1.1
[INFO] finished frobbing rmatrix-0.1.1
[INFO] frobbed toml for rmatrix-0.1.1 written to work/ex/beta-1.38-1/sources/1.37.0/reg/rmatrix/0.1.1/Cargo.toml
[INFO] started frobbing rmatrix-0.1.1
[INFO] finished frobbing rmatrix-0.1.1
[INFO] frobbed toml for rmatrix-0.1.1 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/rmatrix/0.1.1/Cargo.toml
[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 rmatrix-0.1.1 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-1/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/rmatrix/0.1.1:/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] be7cafe0c95d25b835c9015f4df1bbf0ebe579cbbe72869e9b8bb5e151447916
[INFO] running `"docker" "start" "-a" "be7cafe0c95d25b835c9015f4df1bbf0ebe579cbbe72869e9b8bb5e151447916"`
[INFO] [stderr] warning: only one of `license` or `license-file` is necessary
[INFO] [stderr]    Compiling ncurses v5.99.0
[INFO] [stderr]    Compiling rmatrix v0.1.1 (/opt/crater/workdir)
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]   --> src/main.rs:72:40
[INFO] [stderr]    |
[INFO] [stderr] 72 |             nc::mvwaddch(window, y, x, ch as u32);
[INFO] [stderr]    |                                        ^^^^^^^^^
[INFO] [stderr]    |                                        |
[INFO] [stderr]    |                                        expected u64, found u32
[INFO] [stderr]    |                                        help: you can convert an `u32` to `u64`: `(ch as u32).into()`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0308`.
[INFO] [stderr] error: Could not compile `rmatrix`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "be7cafe0c95d25b835c9015f4df1bbf0ebe579cbbe72869e9b8bb5e151447916"`
[INFO] running `"docker" "rm" "-f" "be7cafe0c95d25b835c9015f4df1bbf0ebe579cbbe72869e9b8bb5e151447916"`
[INFO] [stdout] be7cafe0c95d25b835c9015f4df1bbf0ebe579cbbe72869e9b8bb5e151447916