[INFO] cloning repository https://github.com/quietlychris/neural_net_mvp [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/quietlychris/neural_net_mvp" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fquietlychris%2Fneural_net_mvp", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fquietlychris%2Fneural_net_mvp'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 730675fc116606515dd299b0e99b0bc0ed8b2aaf [INFO] checking quietlychris/neural_net_mvp against try#3857be5045fe74bd0f296f6f4c23db10f8857f73 for pr-156807 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fquietlychris%2Fneural_net_mvp" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/quietlychris/neural_net_mvp [INFO] finished tweaking git repo https://github.com/quietlychris/neural_net_mvp [INFO] tweaked toml for git repo https://github.com/quietlychris/neural_net_mvp written to /workspace/builds/worker-3-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/quietlychris/neural_net_mvp on toolchain 3857be5045fe74bd0f296f6f4c23db10f8857f73 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3857be5045fe74bd0f296f6f4c23db10f8857f73" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3857be5045fe74bd0f296f6f4c23db10f8857f73" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Updating crates.io index [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Locking 22 packages to latest compatible versions [INFO] [stderr] Adding ndarray v0.13.1 (available: v0.17.2) [INFO] [stderr] Adding rand v0.7.3 (available: v0.10.1) [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3857be5045fe74bd0f296f6f4c23db10f8857f73" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded matrixmultiply v0.2.4 [INFO] [stderr] Downloaded ndarray v0.13.1 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+3857be5045fe74bd0f296f6f4c23db10f8857f73" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] e78efe40671a7f39c33748b181acbb2c6c8fd51413453018584b0baa8814a0ae [INFO] running `Command { std: "docker" "start" "-a" "e78efe40671a7f39c33748b181acbb2c6c8fd51413453018584b0baa8814a0ae", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "e78efe40671a7f39c33748b181acbb2c6c8fd51413453018584b0baa8814a0ae", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e78efe40671a7f39c33748b181acbb2c6c8fd51413453018584b0baa8814a0ae", kill_on_drop: false }` [INFO] [stdout] e78efe40671a7f39c33748b181acbb2c6c8fd51413453018584b0baa8814a0ae [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+3857be5045fe74bd0f296f6f4c23db10f8857f73" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 57a89c8a79dbddda79ed4b8d7b66fa743dc3eafbdaf72c3da21519ebc1a18255 [INFO] running `Command { std: "docker" "start" "-a" "57a89c8a79dbddda79ed4b8d7b66fa743dc3eafbdaf72c3da21519ebc1a18255", kill_on_drop: false }` [INFO] [stderr] Compiling autocfg v1.5.1 [INFO] [stderr] Compiling libc v0.2.186 [INFO] [stderr] Compiling getrandom v0.1.16 [INFO] [stderr] Compiling ndarray v0.13.1 [INFO] [stderr] Checking matrixmultiply v0.2.4 [INFO] [stderr] Compiling num-traits v0.2.19 [INFO] [stderr] Compiling num-complex v0.2.4 [INFO] [stderr] Checking rand_core v0.5.1 [INFO] [stderr] Checking num-integer v0.1.46 [INFO] [stderr] Checking rand_chacha v0.2.2 [INFO] [stderr] Checking rand v0.7.3 [INFO] [stderr] Checking neural_net_mvp v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `SeedableRng` [INFO] [stdout] --> src/main.rs:4:24 [INFO] [stdout] | [INFO] [stdout] 4 | use rand::{prelude::*, SeedableRng}; [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `SeedableRng` [INFO] [stdout] --> src/main.rs:4:24 [INFO] [stdout] | [INFO] [stdout] 4 | use rand::{prelude::*, SeedableRng}; [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `error` [INFO] [stdout] --> src/main.rs:46:13 [INFO] [stdout] | [INFO] [stdout] 46 | let error = (output.clone() - output_hat.clone()) [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_error` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `input` is never read [INFO] [stdout] --> src/main.rs:11:21 [INFO] [stdout] | [INFO] [stdout] 11 | let mut input = Array::::zeros((n, m)); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this value is reassigned later and never used [INFO] [stdout] 12 | input = array![ [INFO] [stdout] | ----- `input` is overwritten here before the previous value is read [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `sigmoid_prime` is never used [INFO] [stdout] --> src/main.rs:62:4 [INFO] [stdout] | [INFO] [stdout] 62 | fn sigmoid_prime(x: f32) -> f32 { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `error` [INFO] [stdout] --> src/main.rs:46:13 [INFO] [stdout] | [INFO] [stdout] 46 | let error = (output.clone() - output_hat.clone()) [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_error` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `input` is never read [INFO] [stdout] --> src/main.rs:11:21 [INFO] [stdout] | [INFO] [stdout] 11 | let mut input = Array::::zeros((n, m)); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this value is reassigned later and never used [INFO] [stdout] 12 | input = array![ [INFO] [stdout] | ----- `input` is overwritten here before the previous value is read [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `sigmoid_prime` is never used [INFO] [stdout] --> src/main.rs:62:4 [INFO] [stdout] | [INFO] [stdout] 62 | fn sigmoid_prime(x: f32) -> f32 { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.69s [INFO] running `Command { std: "docker" "inspect" "57a89c8a79dbddda79ed4b8d7b66fa743dc3eafbdaf72c3da21519ebc1a18255", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "57a89c8a79dbddda79ed4b8d7b66fa743dc3eafbdaf72c3da21519ebc1a18255", kill_on_drop: false }` [INFO] [stdout] 57a89c8a79dbddda79ed4b8d7b66fa743dc3eafbdaf72c3da21519ebc1a18255