[INFO] cloning repository https://github.com/jmmoore34/MachineLearningCoursera
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jmmoore34/MachineLearningCoursera" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjmmoore34%2FMachineLearningCoursera", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjmmoore34%2FMachineLearningCoursera'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4f1ecc482cb80c88bdd475d2be9a554a57ebdd0d
[INFO] testing jmmoore34/MachineLearningCoursera against beta-2026-04-21 for beta-1.96-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjmmoore34%2FMachineLearningCoursera" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/jmmoore34/MachineLearningCoursera
[INFO] finished tweaking git repo https://github.com/jmmoore34/MachineLearningCoursera
[INFO] tweaked toml for git repo https://github.com/jmmoore34/MachineLearningCoursera written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/jmmoore34/MachineLearningCoursera on toolchain beta-2026-04-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/jmmoore34/MachineLearningCoursera 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" "+beta-2026-04-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 09bb3e172e4570f52ddb6fb3011d9c117fd9a6de448fa76e62d33f4d445bdcd4
[INFO] running `Command { std: "docker" "start" "-a" "09bb3e172e4570f52ddb6fb3011d9c117fd9a6de448fa76e62d33f4d445bdcd4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "09bb3e172e4570f52ddb6fb3011d9c117fd9a6de448fa76e62d33f4d445bdcd4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "09bb3e172e4570f52ddb6fb3011d9c117fd9a6de448fa76e62d33f4d445bdcd4", kill_on_drop: false }`
[INFO] [stdout] 09bb3e172e4570f52ddb6fb3011d9c117fd9a6de448fa76e62d33f4d445bdcd4
[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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+beta-2026-04-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9175d59ef5a643fa2d7015d266d41e79114e02293540c97dc6ebcbdce190961e
[INFO] running `Command { std: "docker" "start" "-a" "9175d59ef5a643fa2d7015d266d41e79114e02293540c97dc6ebcbdce190961e", kill_on_drop: false }`
[INFO] [stderr]    Compiling LinearRegression v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `J_hist`
[INFO] [stdout]   --> src/main.rs:11:28
[INFO] [stdout]    |
[INFO] [stdout] 11 |     let (w_final, b_final, J_hist, p_hist) = gradient_descent(inputs, output, w_init, b_init, alpha,
[INFO] [stdout]    |                            ^^^^^^ help: if this is intentional, prefix it with an underscore: `_J_hist`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `p_hist`
[INFO] [stdout]   --> src/main.rs:11:36
[INFO] [stdout]    |
[INFO] [stdout] 11 |     let (w_final, b_final, J_hist, p_hist) = gradient_descent(inputs, output, w_init, b_init, alpha,
[INFO] [stdout]    |                                    ^^^^^^ help: if this is intentional, prefix it with an underscore: `_p_hist`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `J_hist` should have a snake case name
[INFO] [stdout]   --> src/main.rs:11:28
[INFO] [stdout]    |
[INFO] [stdout] 11 |     let (w_final, b_final, J_hist, p_hist) = gradient_descent(inputs, output, w_init, b_init, alpha,
[INFO] [stdout]    |                            ^^^^^^ help: convert the identifier to snake case: `j_hist`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.47s
[INFO] running `Command { std: "docker" "inspect" "9175d59ef5a643fa2d7015d266d41e79114e02293540c97dc6ebcbdce190961e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9175d59ef5a643fa2d7015d266d41e79114e02293540c97dc6ebcbdce190961e", kill_on_drop: false }`
[INFO] [stdout] 9175d59ef5a643fa2d7015d266d41e79114e02293540c97dc6ebcbdce190961e
[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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+beta-2026-04-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0029c45bacb221cc8ee4a42a1b24d14cd50cebf7fb5a66c0a455d510935b99d0
[INFO] running `Command { std: "docker" "start" "-a" "0029c45bacb221cc8ee4a42a1b24d14cd50cebf7fb5a66c0a455d510935b99d0", kill_on_drop: false }`
[INFO] [stderr]    Compiling LinearRegression v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `J_hist`
[INFO] [stdout]   --> src/main.rs:11:28
[INFO] [stdout]    |
[INFO] [stdout] 11 |     let (w_final, b_final, J_hist, p_hist) = gradient_descent(inputs, output, w_init, b_init, alpha,
[INFO] [stdout]    |                            ^^^^^^ help: if this is intentional, prefix it with an underscore: `_J_hist`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `p_hist`
[INFO] [stdout]   --> src/main.rs:11:36
[INFO] [stdout]    |
[INFO] [stdout] 11 |     let (w_final, b_final, J_hist, p_hist) = gradient_descent(inputs, output, w_init, b_init, alpha,
[INFO] [stdout]    |                                    ^^^^^^ help: if this is intentional, prefix it with an underscore: `_p_hist`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `J_hist` should have a snake case name
[INFO] [stdout]   --> src/main.rs:11:28
[INFO] [stdout]    |
[INFO] [stdout] 11 |     let (w_final, b_final, J_hist, p_hist) = gradient_descent(inputs, output, w_init, b_init, alpha,
[INFO] [stdout]    |                            ^^^^^^ help: convert the identifier to snake case: `j_hist`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.41s
[INFO] running `Command { std: "docker" "inspect" "0029c45bacb221cc8ee4a42a1b24d14cd50cebf7fb5a66c0a455d510935b99d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0029c45bacb221cc8ee4a42a1b24d14cd50cebf7fb5a66c0a455d510935b99d0", kill_on_drop: false }`
[INFO] [stdout] 0029c45bacb221cc8ee4a42a1b24d14cd50cebf7fb5a66c0a455d510935b99d0
[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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+beta-2026-04-21" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] e357b6eeb9c42fd692c0172dd3eadefa679e1b040b3861da1ea715426ffa9d0d
[INFO] running `Command { std: "docker" "start" "-a" "e357b6eeb9c42fd692c0172dd3eadefa679e1b040b3861da1ea715426ffa9d0d", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `J_hist`
[INFO] [stderr]   --> src/main.rs:11:28
[INFO] [stderr]    |
[INFO] [stderr] 11 |     let (w_final, b_final, J_hist, p_hist) = gradient_descent(inputs, output, w_init, b_init, alpha,
[INFO] [stderr]    |                            ^^^^^^ help: if this is intentional, prefix it with an underscore: `_J_hist`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `p_hist`
[INFO] [stderr]   --> src/main.rs:11:36
[INFO] [stderr]    |
[INFO] [stderr] 11 |     let (w_final, b_final, J_hist, p_hist) = gradient_descent(inputs, output, w_init, b_init, alpha,
[INFO] [stderr]    |                                    ^^^^^^ help: if this is intentional, prefix it with an underscore: `_p_hist`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `J_hist` should have a snake case name
[INFO] [stderr]   --> src/main.rs:11:28
[INFO] [stderr]    |
[INFO] [stderr] 11 |     let (w_final, b_final, J_hist, p_hist) = gradient_descent(inputs, output, w_init, b_init, alpha,
[INFO] [stderr]    |                            ^^^^^^ help: convert the identifier to snake case: `j_hist`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `LinearRegression` (bin "LinearRegression" test) generated 3 warnings (run `cargo fix --bin "LinearRegression" -p LinearRegression --tests` to apply 2 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/LinearRegression-c6187b6a905a5a4d)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "e357b6eeb9c42fd692c0172dd3eadefa679e1b040b3861da1ea715426ffa9d0d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e357b6eeb9c42fd692c0172dd3eadefa679e1b040b3861da1ea715426ffa9d0d", kill_on_drop: false }`
[INFO] [stdout] e357b6eeb9c42fd692c0172dd3eadefa679e1b040b3861da1ea715426ffa9d0d
