[INFO] cloning repository https://github.com/victorlisman/rusty_cog
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/victorlisman/rusty_cog" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvictorlisman%2Frusty_cog", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvictorlisman%2Frusty_cog'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0ff4f441d35dbd32c6ec933cb22d3f475bfdfd93
[INFO] checking victorlisman/rusty_cog against try#987a165cfab916796a8315782b83ac460a651ce2 for pr-145262
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvictorlisman%2Frusty_cog" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/victorlisman/rusty_cog
[INFO] finished tweaking git repo https://github.com/victorlisman/rusty_cog
[INFO] tweaked toml for git repo https://github.com/victorlisman/rusty_cog written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/victorlisman/rusty_cog on toolchain 987a165cfab916796a8315782b83ac460a651ce2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+987a165cfab916796a8315782b83ac460a651ce2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/victorlisman/rusty_cog 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" "+987a165cfab916796a8315782b83ac460a651ce2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+987a165cfab916796a8315782b83ac460a651ce2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 54a317111b39899b11fd1047734b9b107c9e4d232a16a8058931c10969d11e2d
[INFO] running `Command { std: "docker" "start" "-a" "54a317111b39899b11fd1047734b9b107c9e4d232a16a8058931c10969d11e2d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "54a317111b39899b11fd1047734b9b107c9e4d232a16a8058931c10969d11e2d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "54a317111b39899b11fd1047734b9b107c9e4d232a16a8058931c10969d11e2d", kill_on_drop: false }`
[INFO] [stdout] 54a317111b39899b11fd1047734b9b107c9e4d232a16a8058931c10969d11e2d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+987a165cfab916796a8315782b83ac460a651ce2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 01791a8f27e0f47acbe695ece37ccac85a011da60acb6e5dd5d39245b0d89be4
[INFO] running `Command { std: "docker" "start" "-a" "01791a8f27e0f47acbe695ece37ccac85a011da60acb6e5dd5d39245b0d89be4", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.155
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.17
[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 ruml v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `crate::tensor::Tensor`
[INFO] [stdout]  --> src/optimizer.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::tensor::Tensor;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Add`, `Div`, `Mul`, and `Sub`
[INFO] [stdout]  --> src/optimizer.rs:3:16
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::ops::{Add, Mul, Div, Sub};
[INFO] [stdout]   |                ^^^  ^^^  ^^^  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::tensor::Tensor`
[INFO] [stdout]  --> src/optimizer.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::tensor::Tensor;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `model`
[INFO] [stdout]   --> src/optimizer.rs:20:24
[INFO] [stdout]    |
[INFO] [stdout] 20 |     fn step(&mut self, model: &mut dyn Model<T>) {
[INFO] [stdout]    |                        ^^^^^ help: if this is intentional, prefix it with an underscore: `_model`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Optimizer` is never used
[INFO] [stdout]  --> src/optimizer.rs:5:7
[INFO] [stdout]   |
[INFO] [stdout] 5 | trait Optimizer<T> {
[INFO] [stdout]   |       ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `lr` is never read
[INFO] [stdout]   --> src/optimizer.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout]  9 | pub struct SGD {
[INFO] [stdout]    |            --- field in this struct
[INFO] [stdout] 10 |     lr: f64,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Add`, `Div`, `Mul`, and `Sub`
[INFO] [stdout]  --> src/optimizer.rs:3:16
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::ops::{Add, Mul, Div, Sub};
[INFO] [stdout]   |                ^^^  ^^^  ^^^  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `X` should have a snake case name
[INFO] [stdout]   --> examples/linear_reg.rs:21:27
[INFO] [stdout]    |
[INFO] [stdout] 21 |     pub fn fit(&mut self, X: &Tensor<f64>, y: &Tensor<f64>) {
[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]   --> examples/linear_reg.rs:46:27
[INFO] [stdout]    |
[INFO] [stdout] 46 |     pub fn predict(&self, X: &Tensor<f64>) -> Tensor<f64> {
[INFO] [stdout]    |                           ^ help: convert the identifier to snake case (notice the capitalization): `x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `X` should have a snake case name
[INFO] [stdout]   --> examples/linear_reg.rs:61:28
[INFO] [stdout]    |
[INFO] [stdout] 61 |     pub fn evaluate(&self, X: &Tensor<f64>, y: &Tensor<f64>) -> (f64, f64) {
[INFO] [stdout]    |                            ^ help: convert the identifier to snake case (notice the capitalization): `x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `X` should have a snake case name
[INFO] [stdout]   --> examples/linear_reg.rs:78:9
[INFO] [stdout]    |
[INFO] [stdout] 78 |     let X = Tensor::new(normalized_x, shape_x).unwrap();
[INFO] [stdout]    |         ^ help: convert the identifier to snake case (notice the capitalization): `x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `model`
[INFO] [stdout]   --> src/optimizer.rs:20:24
[INFO] [stdout]    |
[INFO] [stdout] 20 |     fn step(&mut self, model: &mut dyn Model<T>) {
[INFO] [stdout]    |                        ^^^^^ help: if this is intentional, prefix it with an underscore: `_model`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Optimizer` is never used
[INFO] [stdout]  --> src/optimizer.rs:5:7
[INFO] [stdout]   |
[INFO] [stdout] 5 | trait Optimizer<T> {
[INFO] [stdout]   |       ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `lr` is never read
[INFO] [stdout]   --> src/optimizer.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout]  9 | pub struct SGD {
[INFO] [stdout]    |            --- field in this struct
[INFO] [stdout] 10 |     lr: f64,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.22s
[INFO] running `Command { std: "docker" "inspect" "01791a8f27e0f47acbe695ece37ccac85a011da60acb6e5dd5d39245b0d89be4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "01791a8f27e0f47acbe695ece37ccac85a011da60acb6e5dd5d39245b0d89be4", kill_on_drop: false }`
[INFO] [stdout] 01791a8f27e0f47acbe695ece37ccac85a011da60acb6e5dd5d39245b0d89be4
