[INFO] cloning repository https://github.com/Jgansaown/digit-recognizer
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Jgansaown/digit-recognizer" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJgansaown%2Fdigit-recognizer", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJgansaown%2Fdigit-recognizer'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ceac43103b6e7c1dc6681a67936e4fa8860c1b87
[INFO] checking Jgansaown/digit-recognizer against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJgansaown%2Fdigit-recognizer" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Jgansaown/digit-recognizer on toolchain 1f12b9b0fdbe735968ac002792a720f0ba4faca6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Jgansaown/digit-recognizer
[INFO] finished tweaking git repo https://github.com/Jgansaown/digit-recognizer
[INFO] tweaked toml for git repo https://github.com/Jgansaown/digit-recognizer written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/Jgansaown/digit-recognizer already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded wasm-bindgen-test v0.3.38
[INFO] [stderr]   Downloaded ndarray-stats v0.5.1
[INFO] [stderr]   Downloaded ndarray-rand v0.14.0
[INFO] [stderr]   Downloaded wasm-bindgen-test-macro v0.3.38
[INFO] [stderr]   Downloaded noisy_float v0.2.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8956aa29c56669a0463fef686191e54a67c616fb944abcc2169cb99fedca21b4
[INFO] running `Command { std: "docker" "start" "-a" "8956aa29c56669a0463fef686191e54a67c616fb944abcc2169cb99fedca21b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8956aa29c56669a0463fef686191e54a67c616fb944abcc2169cb99fedca21b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8956aa29c56669a0463fef686191e54a67c616fb944abcc2169cb99fedca21b4", kill_on_drop: false }`
[INFO] [stdout] 8956aa29c56669a0463fef686191e54a67c616fb944abcc2169cb99fedca21b4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8b0346d230bd88582408b2db6a6e40208ed510cf5e9d8c585a39668005b4d374
[INFO] running `Command { std: "docker" "start" "-a" "8b0346d230bd88582408b2db6a6e40208ed510cf5e9d8c585a39668005b4d374", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.66
[INFO] [stderr]    Compiling unicode-ident v1.0.11
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.88
[INFO] [stderr]    Compiling libm v0.2.7
[INFO] [stderr]    Compiling num-traits v0.2.16
[INFO] [stderr]    Compiling libc v0.2.147
[INFO] [stderr]    Compiling bumpalo v3.13.0
[INFO] [stderr]    Compiling wasm-bindgen v0.2.88
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling matrixmultiply v0.3.7
[INFO] [stderr]     Checking rawpointer v0.2.1
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]     Checking hashbrown v0.12.3
[INFO] [stderr]     Checking either v1.9.0
[INFO] [stderr]     Checking miniz_oxide v0.7.1
[INFO] [stderr]     Checking itertools v0.10.5
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]    Compiling syn v2.0.29
[INFO] [stderr]     Checking flate2 v1.0.28
[INFO] [stderr]     Checking getrandom v0.2.10
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking num-complex v0.4.3
[INFO] [stderr]     Checking noisy_float v0.2.0
[INFO] [stderr]     Checking ndarray v0.15.6
[INFO] [stderr]     Checking rand_distr v0.4.3
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.88
[INFO] [stderr]    Compiling wasm-bindgen-test-macro v0.3.38
[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.88
[INFO] [stderr]     Checking ndarray-rand v0.14.0
[INFO] [stderr]     Checking ndarray-stats v0.5.1
[INFO] [stderr]    Compiling wasm-bindgen-macro v0.2.88
[INFO] [stderr]     Checking console_error_panic_hook v0.1.7
[INFO] [stderr]     Checking js-sys v0.3.65
[INFO] [stderr]     Checking mnist v0.1.0 (/opt/rustwide/workdir/wasm)
[INFO] [stderr]     Checking wasm-bindgen-futures v0.4.38
[INFO] [stderr]     Checking wasm-bindgen-test v0.3.38
[INFO] [stdout] warning: function `print_image` is never used
[INFO] [stdout]   --> wasm/examples/test-models.rs:32:4
[INFO] [stdout]    |
[INFO] [stdout] 32 | fn print_image(data: ArrayView1<f64>) {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_kmeans` is never used
[INFO] [stdout]   --> wasm/examples/test-models.rs:46:4
[INFO] [stdout]    |
[INFO] [stdout] 46 | fn test_kmeans(training: &Dataset, testing: &Dataset, max_iteration: usize) {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_knn` is never used
[INFO] [stdout]   --> wasm/examples/test-models.rs:51:4
[INFO] [stdout]    |
[INFO] [stdout] 51 | fn test_knn(training: &Dataset, testing: &Dataset, max_iteration: usize) {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.87s
[INFO] running `Command { std: "docker" "inspect" "8b0346d230bd88582408b2db6a6e40208ed510cf5e9d8c585a39668005b4d374", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8b0346d230bd88582408b2db6a6e40208ed510cf5e9d8c585a39668005b4d374", kill_on_drop: false }`
[INFO] [stdout] 8b0346d230bd88582408b2db6a6e40208ed510cf5e9d8c585a39668005b4d374