[INFO] cloning repository https://github.com/Arch-4ng3l/machine_learning
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Arch-4ng3l/machine_learning" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FArch-4ng3l%2Fmachine_learning", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FArch-4ng3l%2Fmachine_learning'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6a895c6b041d5285b90df8f3c304fc7998fff16f
[INFO] checking Arch-4ng3l/machine_learning against master#3129d37ef7075ee3cbaa3d6cbe1b5794f67192b0 for pr-143164
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FArch-4ng3l%2Fmachine_learning" "/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/Arch-4ng3l/machine_learning
[INFO] finished tweaking git repo https://github.com/Arch-4ng3l/machine_learning
[INFO] tweaked toml for git repo https://github.com/Arch-4ng3l/machine_learning written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Arch-4ng3l/machine_learning on toolchain 3129d37ef7075ee3cbaa3d6cbe1b5794f67192b0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3129d37ef7075ee3cbaa3d6cbe1b5794f67192b0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Arch-4ng3l/machine_learning 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" "+3129d37ef7075ee3cbaa3d6cbe1b5794f67192b0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+3129d37ef7075ee3cbaa3d6cbe1b5794f67192b0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2d68f1ccb3e1a2651a6d1f7770a1055c45cdb711ad2580614fe1e083f4eb5552
[INFO] running `Command { std: "docker" "start" "-a" "2d68f1ccb3e1a2651a6d1f7770a1055c45cdb711ad2580614fe1e083f4eb5552", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2d68f1ccb3e1a2651a6d1f7770a1055c45cdb711ad2580614fe1e083f4eb5552", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2d68f1ccb3e1a2651a6d1f7770a1055c45cdb711ad2580614fe1e083f4eb5552", kill_on_drop: false }`
[INFO] [stdout] 2d68f1ccb3e1a2651a6d1f7770a1055c45cdb711ad2580614fe1e083f4eb5552
[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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+3129d37ef7075ee3cbaa3d6cbe1b5794f67192b0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4417a8f97ad06136d85ce1f7aaf6c9f062da75bf91c0cf1bd469ec5f5bd4353c
[INFO] running `Command { std: "docker" "start" "-a" "4417a8f97ad06136d85ce1f7aaf6c9f062da75bf91c0cf1bd469ec5f5bd4353c", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.155
[INFO] [stderr]    Compiling autocfg v1.3.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.17
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]     Checking getrandom v0.2.15
[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 machine_learning v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/main.rs:302:9
[INFO] [stdout]     |
[INFO] [stdout] 302 |     for i in 0..35 {
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lr`
[INFO] [stdout]    --> src/main.rs:306:13
[INFO] [stdout]     |
[INFO] [stdout] 306 |         let lr = 0.1;
[INFO] [stdout]     |             ^^ help: if this is intentional, prefix it with an underscore: `_lr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `error_back2`
[INFO] [stdout]    --> src/main.rs:318:14
[INFO] [stdout]     |
[INFO] [stdout] 318 |         let (error_back2, weight_update2, bias_update2) = layer.backward(&matrix, &error_back, &layer2.layer_w, false);
[INFO] [stdout]     |              ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_error_back2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/main.rs:302:9
[INFO] [stdout]     |
[INFO] [stdout] 302 |     for i in 0..35 {
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Linear` is never constructed
[INFO] [stdout]    --> src/main.rs:208:8
[INFO] [stdout]     |
[INFO] [stdout] 208 | struct Linear {}
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lr`
[INFO] [stdout]    --> src/main.rs:306:13
[INFO] [stdout]     |
[INFO] [stdout] 306 |         let lr = 0.1;
[INFO] [stdout]     |             ^^ help: if this is intentional, prefix it with an underscore: `_lr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `error_back2`
[INFO] [stdout]    --> src/main.rs:318:14
[INFO] [stdout]     |
[INFO] [stdout] 318 |         let (error_back2, weight_update2, bias_update2) = layer.backward(&matrix, &error_back, &layer2.layer_w, false);
[INFO] [stdout]     |              ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_error_back2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Linear` is never constructed
[INFO] [stdout]    --> src/main.rs:208:8
[INFO] [stdout]     |
[INFO] [stdout] 208 | struct Linear {}
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `X` should have a snake case name
[INFO] [stdout]    --> src/main.rs:269:27
[INFO] [stdout]     |
[INFO] [stdout] 269 |     fn forward(&mut self, X: &Matrix) -> Matrix {
[INFO] [stdout]     |                           ^ help: convert the identifier to snake case (notice the capitalization): `x`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `X` should have a snake case name
[INFO] [stdout]    --> src/main.rs:269:27
[INFO] [stdout]     |
[INFO] [stdout] 269 |     fn forward(&mut self, X: &Matrix) -> Matrix {
[INFO] [stdout]     |                           ^ help: convert the identifier to snake case (notice the capitalization): `x`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.75s
[INFO] running `Command { std: "docker" "inspect" "4417a8f97ad06136d85ce1f7aaf6c9f062da75bf91c0cf1bd469ec5f5bd4353c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4417a8f97ad06136d85ce1f7aaf6c9f062da75bf91c0cf1bd469ec5f5bd4353c", kill_on_drop: false }`
[INFO] [stdout] 4417a8f97ad06136d85ce1f7aaf6c9f062da75bf91c0cf1bd469ec5f5bd4353c
