[INFO] cloning repository https://github.com/chrisculver/mnist_rust [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/chrisculver/mnist_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchrisculver%2Fmnist_rust", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchrisculver%2Fmnist_rust'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 7194e677f1c3b8028c1cc9d60270ca4901378222 [INFO] checking chrisculver/mnist_rust against master#accc516128b21e960b1a7af45393e9acdd184890 for pr-122501 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchrisculver%2Fmnist_rust" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/chrisculver/mnist_rust on toolchain accc516128b21e960b1a7af45393e9acdd184890 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+accc516128b21e960b1a7af45393e9acdd184890" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/chrisculver/mnist_rust [INFO] finished tweaking git repo https://github.com/chrisculver/mnist_rust [INFO] tweaked toml for git repo https://github.com/chrisculver/mnist_rust written to /workspace/builds/worker-0-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/chrisculver/mnist_rust 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" "+accc516128b21e960b1a7af45393e9acdd184890" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [ERROR] error running command: no output for 300 seconds [ERROR] this task or one of its parent failed! [ERROR] no output for 300 seconds [ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace. [INFO] checking chrisculver/mnist_rust against try#32f93a5733992b29f321831b7e26c1f7d7205013 for pr-122501 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchrisculver%2Fmnist_rust" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/chrisculver/mnist_rust on toolchain 32f93a5733992b29f321831b7e26c1f7d7205013 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+32f93a5733992b29f321831b7e26c1f7d7205013" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/chrisculver/mnist_rust [INFO] finished tweaking git repo https://github.com/chrisculver/mnist_rust [INFO] tweaked toml for git repo https://github.com/chrisculver/mnist_rust written to /workspace/builds/worker-0-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/chrisculver/mnist_rust 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" "+32f93a5733992b29f321831b7e26c1f7d7205013" "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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+32f93a5733992b29f321831b7e26c1f7d7205013" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 78e4bee255f5383f7d662263abea05a607e45e0de492ba3f17933c9e3873de1d [INFO] running `Command { std: "docker" "start" "-a" "78e4bee255f5383f7d662263abea05a607e45e0de492ba3f17933c9e3873de1d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "78e4bee255f5383f7d662263abea05a607e45e0de492ba3f17933c9e3873de1d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "78e4bee255f5383f7d662263abea05a607e45e0de492ba3f17933c9e3873de1d", kill_on_drop: false }` [INFO] [stdout] 78e4bee255f5383f7d662263abea05a607e45e0de492ba3f17933c9e3873de1d [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+32f93a5733992b29f321831b7e26c1f7d7205013" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] a7d3da08349e1839d952e4c7fe7f14b18bab055e826115e9d45ccd047a764b18 [INFO] running `Command { std: "docker" "start" "-a" "a7d3da08349e1839d952e4c7fe7f14b18bab055e826115e9d45ccd047a764b18", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.108 [INFO] [stderr] Compiling libm v0.2.1 [INFO] [stderr] Checking ppv-lite86 v0.2.15 [INFO] [stderr] Compiling num-traits v0.2.14 [INFO] [stderr] Checking getrandom v0.2.3 [INFO] [stderr] Checking rand_core v0.6.3 [INFO] [stderr] Checking rand_chacha v0.3.1 [INFO] [stderr] Checking rand v0.8.4 [INFO] [stderr] Checking rand_distr v0.4.2 [INFO] [stderr] Checking mnist_by_hand v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `crate::neural_net` [INFO] [stdout] --> src/neural_net/matrix.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use crate::neural_net; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `crate::neural_net` [INFO] [stdout] --> src/neural_net/matrix.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use crate::neural_net; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::ops` [INFO] [stdout] --> src/neural_net/matrix.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 5 | use std::ops; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::ops` [INFO] [stdout] --> src/neural_net/matrix.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 5 | use std::ops; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `nr` and `nc` are never read [INFO] [stdout] --> src/neural_net/matrix.rs:10:5 [INFO] [stdout] | [INFO] [stdout] 8 | pub struct Matrix { [INFO] [stdout] | ------ fields in this struct [INFO] [stdout] 9 | elems: Vec>, [INFO] [stdout] 10 | nr: usize, [INFO] [stdout] | ^^ [INFO] [stdout] 11 | nc: usize, [INFO] [stdout] | ^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `new`, `shape`, and `times` are never used [INFO] [stdout] --> src/neural_net/matrix.rs:15:12 [INFO] [stdout] | [INFO] [stdout] 14 | impl Matrix { [INFO] [stdout] | ----------- associated items in this implementation [INFO] [stdout] 15 | pub fn new(nr: usize, nc: usize) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 31 | pub fn shape(&self) -> (usize, usize) { [INFO] [stdout] | ^^^^^ [INFO] [stdout] ... [INFO] [stdout] 35 | pub fn times(&self, v: &Vector) -> Vector { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait `Sigmoid` is never used [INFO] [stdout] --> src/neural_net/neural_net.rs:5:7 [INFO] [stdout] | [INFO] [stdout] 5 | trait Sigmoid { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Network` is never constructed [INFO] [stdout] --> src/neural_net/neural_net.rs:20:8 [INFO] [stdout] | [INFO] [stdout] 20 | struct Network { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `new` and `feedforward` are never used [INFO] [stdout] --> src/neural_net/neural_net.rs:28:8 [INFO] [stdout] | [INFO] [stdout] 27 | impl Network { [INFO] [stdout] | ------------ associated items in this implementation [INFO] [stdout] 28 | fn new(sizes: Vec) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 47 | fn feedforward(&self, a: Vector) -> Vector { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 7 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `sizes` is never read [INFO] [stdout] --> src/neural_net/neural_net.rs:22:5 [INFO] [stdout] | [INFO] [stdout] 20 | struct Network { [INFO] [stdout] | ------- field in this struct [INFO] [stdout] 21 | num_layers: usize, //len of sizes [INFO] [stdout] 22 | sizes: Vec, [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.69s [INFO] running `Command { std: "docker" "inspect" "a7d3da08349e1839d952e4c7fe7f14b18bab055e826115e9d45ccd047a764b18", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a7d3da08349e1839d952e4c7fe7f14b18bab055e826115e9d45ccd047a764b18", kill_on_drop: false }` [INFO] [stdout] a7d3da08349e1839d952e4c7fe7f14b18bab055e826115e9d45ccd047a764b18