[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 416264364aa47959f5827723e1d7dabc95d0744b for pr-162242
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJgansaown%2Fdigit-recognizer" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[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-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Jgansaown/digit-recognizer on toolchain 416264364aa47959f5827723e1d7dabc95d0744b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+416264364aa47959f5827723e1d7dabc95d0744b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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" "+416264364aa47959f5827723e1d7dabc95d0744b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[INFO] checking Jgansaown/digit-recognizer against 416264364aa47959f5827723e1d7dabc95d0744b for pr-162242
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJgansaown%2Fdigit-recognizer" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[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-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Jgansaown/digit-recognizer on toolchain 416264364aa47959f5827723e1d7dabc95d0744b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+416264364aa47959f5827723e1d7dabc95d0744b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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" "+416264364aa47959f5827723e1d7dabc95d0744b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded wasm-bindgen-test v0.3.38
[INFO] [stderr]   Downloaded wasm-bindgen-test-macro v0.3.38
[INFO] [stderr]   Downloaded matrixmultiply v0.3.7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:8683fc1fc2eb5c9ac98e0d076ab094b2ffac7f99da555d2b6a2e27f346de2ec7" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 9a7ab73b165ae8ffbbd6b662c5926a2ea6f5c743e813e9e759974af55e208eee
[INFO] running `Command { std: "docker" "start" "9a7ab73b165ae8ffbbd6b662c5926a2ea6f5c743e813e9e759974af55e208eee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9a7ab73b165ae8ffbbd6b662c5926a2ea6f5c743e813e9e759974af55e208eee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "9a7ab73b165ae8ffbbd6b662c5926a2ea6f5c743e813e9e759974af55e208eee" "/opt/rustwide/cargo-home/bin/cargo" "+416264364aa47959f5827723e1d7dabc95d0744b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9a7ab73b165ae8ffbbd6b662c5926a2ea6f5c743e813e9e759974af55e208eee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "9a7ab73b165ae8ffbbd6b662c5926a2ea6f5c743e813e9e759974af55e208eee" "/opt/rustwide/cargo-home/bin/cargo" "+416264364aa47959f5827723e1d7dabc95d0744b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[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 once_cell v1.18.0
[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]    Compiling indexmap v1.9.3
[INFO] [stderr]     Checking itertools v0.10.5
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]     Checking flate2 v1.0.28
[INFO] [stderr]    Compiling syn v2.0.29
[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]    Compiling wasm-bindgen-macro v0.2.88
[INFO] [stderr]     Checking ndarray-stats v0.5.1
[INFO] [stderr]     Checking ndarray-rand v0.14.0
[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] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> wasm/src/dataset/mod.rs:55:15
[INFO] [stdout]    |
[INFO] [stdout] 55 |     pub fn at(&self, i: usize) -> (ArrayView1<f64>, ArrayView1<f64>) {
[INFO] [stdout]    |               ^^^^^                ^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |               |                    |
[INFO] [stdout]    |               |                    the same lifetime is hidden here
[INFO] [stdout]    |               the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 55 |     pub fn at(&self, i: usize) -> (ArrayView1<'_, f64>, ArrayView1<'_, f64>) {
[INFO] [stdout]    |                                               +++                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> wasm/src/dataset/mod.rs:59:36
[INFO] [stdout]    |
[INFO] [stdout] 59 |     pub fn observation_target_iter(&self) -> ObservationTargetIter {
[INFO] [stdout]    |                                    ^^^^^     ^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                                    |
[INFO] [stdout]    |                                    the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 59 |     pub fn observation_target_iter(&self) -> ObservationTargetIter<'_> {
[INFO] [stdout]    |                                                                   ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> wasm/src/dataset/mod.rs:63:35
[INFO] [stdout]    |
[INFO] [stdout] 63 |     pub fn observation_label_iter(&self) -> ObservationLabelIter {
[INFO] [stdout]    |                                   ^^^^^     ^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                                   |
[INFO] [stdout]    |                                   the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 63 |     pub fn observation_label_iter(&self) -> ObservationLabelIter<'_> {
[INFO] [stdout]    |                                                                 ++++
[INFO] [stdout] 
[INFO] [stdout] 
[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)]` (part of `#[warn(unused)]`) 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: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> wasm/src/dataset/mod.rs:55:15
[INFO] [stdout]    |
[INFO] [stdout] 55 |     pub fn at(&self, i: usize) -> (ArrayView1<f64>, ArrayView1<f64>) {
[INFO] [stdout]    |               ^^^^^                ^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |               |                    |
[INFO] [stdout]    |               |                    the same lifetime is hidden here
[INFO] [stdout]    |               the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 55 |     pub fn at(&self, i: usize) -> (ArrayView1<'_, f64>, ArrayView1<'_, f64>) {
[INFO] [stdout]    |                                               +++                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> wasm/src/dataset/mod.rs:59:36
[INFO] [stdout]    |
[INFO] [stdout] 59 |     pub fn observation_target_iter(&self) -> ObservationTargetIter {
[INFO] [stdout]    |                                    ^^^^^     ^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                                    |
[INFO] [stdout]    |                                    the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 59 |     pub fn observation_target_iter(&self) -> ObservationTargetIter<'_> {
[INFO] [stdout]    |                                                                   ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> wasm/src/dataset/mod.rs:63:35
[INFO] [stdout]    |
[INFO] [stdout] 63 |     pub fn observation_label_iter(&self) -> ObservationLabelIter {
[INFO] [stdout]    |                                   ^^^^^     ^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                                   |
[INFO] [stdout]    |                                   the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 63 |     pub fn observation_label_iter(&self) -> ObservationLabelIter<'_> {
[INFO] [stdout]    |                                                                 ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.75s
[INFO] running `Command { std: "docker" "inspect" "9a7ab73b165ae8ffbbd6b662c5926a2ea6f5c743e813e9e759974af55e208eee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9a7ab73b165ae8ffbbd6b662c5926a2ea6f5c743e813e9e759974af55e208eee", kill_on_drop: false }`
[INFO] [stdout] 9a7ab73b165ae8ffbbd6b662c5926a2ea6f5c743e813e9e759974af55e208eee
