[INFO] cloning repository https://github.com/CaioPiccirillo/sudoku-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/CaioPiccirillo/sudoku-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCaioPiccirillo%2Fsudoku-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCaioPiccirillo%2Fsudoku-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 90b89b2e37bba548acba4919b8b909c7d450c11d
[INFO] testing CaioPiccirillo/sudoku-rust against 1.59.0 for beta-1.60-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCaioPiccirillo%2Fsudoku-rust" "/workspace/builds/worker-13/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/CaioPiccirillo/sudoku-rust on toolchain 1.59.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/CaioPiccirillo/sudoku-rust
[INFO] finished tweaking git repo https://github.com/CaioPiccirillo/sudoku-rust
[INFO] tweaked toml for git repo https://github.com/CaioPiccirillo/sudoku-rust written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 45f1ecd468ba3e1c047896c456d20f19c0a2d20fac50db638cf54d7cb681ab77
[INFO] running `Command { std: "docker" "start" "-a" "45f1ecd468ba3e1c047896c456d20f19c0a2d20fac50db638cf54d7cb681ab77", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "45f1ecd468ba3e1c047896c456d20f19c0a2d20fac50db638cf54d7cb681ab77", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "45f1ecd468ba3e1c047896c456d20f19c0a2d20fac50db638cf54d7cb681ab77", kill_on_drop: false }`
[INFO] [stdout] 45f1ecd468ba3e1c047896c456d20f19c0a2d20fac50db638cf54d7cb681ab77
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a31b55cebd950d07dd078450015d236d9efea1237b1a330231aa115e63777fc7
[INFO] running `Command { std: "docker" "start" "-a" "a31b55cebd950d07dd078450015d236d9efea1237b1a330231aa115e63777fc7", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling libc v0.2.119
[INFO] [stderr]    Compiling crossbeam-utils v0.8.7
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.7
[INFO] [stderr]    Compiling rayon-core v1.9.1
[INFO] [stderr]    Compiling syn v1.0.86
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling futures-core v0.3.21
[INFO] [stderr]    Compiling adler32 v1.2.0
[INFO] [stderr]    Compiling color_quant v1.1.0
[INFO] [stderr]    Compiling matrixmultiply v0.1.15
[INFO] [stderr]    Compiling ppv-lite86 v0.2.16
[INFO] [stderr]    Compiling ttf-parser v0.6.2
[INFO] [stderr]    Compiling bytemuck v1.7.3
[INFO] [stderr]    Compiling futures-sink v0.3.21
[INFO] [stderr]    Compiling weezl v0.1.5
[INFO] [stderr]    Compiling custom_derive v0.1.7
[INFO] [stderr]    Compiling ab_glyph_rasterizer v0.1.5
[INFO] [stderr]    Compiling smallvec v1.8.0
[INFO] [stderr]    Compiling half v1.8.2
[INFO] [stderr]    Compiling jpeg-decoder v0.1.22
[INFO] [stderr]    Compiling lebe v0.5.1
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling bit_field v0.10.1
[INFO] [stderr]    Compiling scoped_threadpool v0.1.9
[INFO] [stderr]    Compiling lock_api v0.4.6
[INFO] [stderr]    Compiling miniz_oxide v0.5.1
[INFO] [stderr]    Compiling deflate v1.0.0
[INFO] [stderr]    Compiling inflate v0.4.5
[INFO] [stderr]    Compiling conv v0.3.3
[INFO] [stderr]    Compiling itertools v0.9.0
[INFO] [stderr]    Compiling gif v0.11.3
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling num-bigint v0.3.3
[INFO] [stderr]    Compiling num-rational v0.3.2
[INFO] [stderr]    Compiling rayon v1.5.1
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling num-rational v0.4.0
[INFO] [stderr]    Compiling spin v0.9.2
[INFO] [stderr]    Compiling png v0.17.4
[INFO] [stderr]    Compiling crossbeam-channel v0.5.2
[INFO] [stderr]    Compiling owned_ttf_parser v0.6.0
[INFO] [stderr]    Compiling num_cpus v1.13.1
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling getrandom v0.2.5
[INFO] [stderr]    Compiling rusttype v0.9.2
[INFO] [stderr]    Compiling nanorand v0.6.1
[INFO] [stderr]    Compiling threadpool v1.8.1
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling crossbeam-deque v0.8.1
[INFO] [stderr]    Compiling flate2 v1.0.22
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling tiff v0.7.1
[INFO] [stderr]    Compiling num-complex v0.3.1
[INFO] [stderr]    Compiling num v0.1.42
[INFO] [stderr]    Compiling rulinalg v0.4.2
[INFO] [stderr]    Compiling rand_distr v0.2.2
[INFO] [stderr]    Compiling image v0.23.14
[INFO] [stderr]    Compiling num v0.3.1
[INFO] [stderr]    Compiling jpeg-decoder v0.2.2
[INFO] [stderr]    Compiling pin-project-internal v1.0.10
[INFO] [stderr]    Compiling imageproc v0.22.0
[INFO] [stderr]    Compiling pin-project v1.0.10
[INFO] [stderr]    Compiling flume v0.10.11
[INFO] [stderr]    Compiling exr v1.4.1
[INFO] [stderr]    Compiling image v0.24.1
[INFO] [stderr]    Compiling sudoku-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/reader.rs:22:60
[INFO] [stdout]    |
[INFO] [stdout] 22 |         let contours = find_contours_with_threshold::<i32>(&gray_img.into_luma8(),127);
[INFO] [stdout]    |                                                            ^^^^^^^^^^^^^^^^^^^^^^ expected struct `image::buffer_::ImageBuffer`, found struct `ImageBuffer`
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected reference `&image::buffer_::ImageBuffer<image::color::Luma<u8>, Vec<u8>>`
[INFO] [stdout]               found reference `&ImageBuffer<Luma<u8>, Vec<u8>>`
[INFO] [stdout]    = note: perhaps two different versions of crate `image` are being used?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `sudoku-rust` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "a31b55cebd950d07dd078450015d236d9efea1237b1a330231aa115e63777fc7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a31b55cebd950d07dd078450015d236d9efea1237b1a330231aa115e63777fc7", kill_on_drop: false }`
[INFO] [stdout] a31b55cebd950d07dd078450015d236d9efea1237b1a330231aa115e63777fc7