[INFO] cloning repository https://github.com/michaelSink/Rust-multivariate-linear-regression [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/michaelSink/Rust-multivariate-linear-regression" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FmichaelSink%2FRust-multivariate-linear-regression", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FmichaelSink%2FRust-multivariate-linear-regression'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 85b0c17c896d0e4e989d15764cb2f944e3e692df [INFO] checking michaelSink/Rust-multivariate-linear-regression against master#af4a5a13a15fa0c60e06321077ef452f769b42fd for pr-122960-3 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FmichaelSink%2FRust-multivariate-linear-regression" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/michaelSink/Rust-multivariate-linear-regression on toolchain af4a5a13a15fa0c60e06321077ef452f769b42fd [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/michaelSink/Rust-multivariate-linear-regression [INFO] finished tweaking git repo https://github.com/michaelSink/Rust-multivariate-linear-regression [INFO] tweaked toml for git repo https://github.com/michaelSink/Rust-multivariate-linear-regression written to /workspace/builds/worker-5-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/michaelSink/Rust-multivariate-linear-regression 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" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded typenum v1.13.0 [INFO] [stderr] Downloaded serde v1.0.125 [INFO] [stderr] Downloaded proc-macro2 v1.0.26 [INFO] [stderr] Downloaded simba v0.4.0 [INFO] [stderr] Downloaded serde_derive v1.0.125 [INFO] [stderr] Downloaded regex-automata v0.1.9 [INFO] [stderr] Downloaded memchr v2.4.0 [INFO] [stderr] Downloaded bstr v0.2.16 [INFO] [stderr] Downloaded nalgebra v0.26.2 [INFO] [stderr] Downloaded matrixmultiply v0.3.1 [INFO] [stderr] Downloaded syn v1.0.72 [INFO] [stderr] Downloaded csv v1.1.6 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 0498a44e320523c42a9bf84941cbfb07185d1812c5ccd5ff7db1e7148cc5aabb [INFO] running `Command { std: "docker" "start" "-a" "0498a44e320523c42a9bf84941cbfb07185d1812c5ccd5ff7db1e7148cc5aabb", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "0498a44e320523c42a9bf84941cbfb07185d1812c5ccd5ff7db1e7148cc5aabb", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0498a44e320523c42a9bf84941cbfb07185d1812c5ccd5ff7db1e7148cc5aabb", kill_on_drop: false }` [INFO] [stdout] 0498a44e320523c42a9bf84941cbfb07185d1812c5ccd5ff7db1e7148cc5aabb [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] c490e1856a3f2f0a4dd15f12f4a61858dcc61ed5b88a8135308b7d781194d4d8 [INFO] running `Command { std: "docker" "start" "-a" "c490e1856a3f2f0a4dd15f12f4a61858dcc61ed5b88a8135308b7d781194d4d8", kill_on_drop: false }` [INFO] [stderr] Compiling num-traits v0.2.14 [INFO] [stderr] Compiling proc-macro2 v1.0.26 [INFO] [stderr] Compiling syn v1.0.72 [INFO] [stderr] Compiling memchr v2.4.0 [INFO] [stderr] Compiling serde_derive v1.0.125 [INFO] [stderr] Compiling num-integer v0.1.44 [INFO] [stderr] Compiling serde v1.0.125 [INFO] [stderr] Compiling num-rational v0.3.2 [INFO] [stderr] Checking byteorder v1.4.3 [INFO] [stderr] Compiling typenum v1.13.0 [INFO] [stderr] Checking itoa v0.4.7 [INFO] [stderr] Checking matrixmultiply v0.3.1 [INFO] [stderr] Checking regex-automata v0.1.9 [INFO] [stderr] Checking csv-core v0.1.10 [INFO] [stderr] Compiling quote v1.0.9 [INFO] [stderr] Checking approx v0.4.0 [INFO] [stderr] Checking num-complex v0.3.1 [INFO] [stderr] Checking simba v0.4.0 [INFO] [stderr] Checking nalgebra v0.26.2 [INFO] [stderr] Checking bstr v0.2.16 [INFO] [stderr] Checking csv v1.1.6 [INFO] [stderr] Checking multivariate-linear-regression v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `std::error::Error` [INFO] [stdout] --> src/main.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::error::Error; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::error::Error` [INFO] [stdout] --> src/main.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::error::Error; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::process` [INFO] [stdout] --> src/main.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 2 | use std::process; [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::process` [INFO] [stdout] --> src/main.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 2 | use std::process; [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0601]: `main` function not found in crate `multivariate_linear_regression` [INFO] [stdout] --> src/main.rs:60:2 [INFO] [stdout] | [INFO] [stdout] 60 | } [INFO] [stdout] | ^ consider adding a `main` function to `src/main.rs` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `iter` [INFO] [stdout] --> src/main.rs:25:13 [INFO] [stdout] | [INFO] [stdout] 25 | for iter in 0..epochs{ [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_iter` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `iter` [INFO] [stdout] --> src/main.rs:25:13 [INFO] [stdout] | [INFO] [stdout] 25 | for iter in 0..epochs{ [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_iter` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `MultivariateRegression` is never constructed [INFO] [stdout] --> src/main.rs:4:8 [INFO] [stdout] | [INFO] [stdout] 4 | struct MultivariateRegression{ [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `new` and `fit` are never used [INFO] [stdout] --> src/main.rs:13:8 [INFO] [stdout] | [INFO] [stdout] 12 | impl MultivariateRegression{ [INFO] [stdout] | --------------------------- associated items in this implementation [INFO] [stdout] 13 | fn new(x: Vec>, y: Vec) -> MultivariateRegression{ [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 24 | fn fit(&mut self, epochs: i32){ [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 1 previous error; 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0601`. [INFO] [stdout] [INFO] [stdout] warning: 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `multivariate-linear-regression` (bin "multivariate-linear-regression") due to 2 previous errors; 3 warnings emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] running `Command { std: "docker" "inspect" "c490e1856a3f2f0a4dd15f12f4a61858dcc61ed5b88a8135308b7d781194d4d8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c490e1856a3f2f0a4dd15f12f4a61858dcc61ed5b88a8135308b7d781194d4d8", kill_on_drop: false }` [INFO] [stdout] c490e1856a3f2f0a4dd15f12f4a61858dcc61ed5b88a8135308b7d781194d4d8 [INFO] checking michaelSink/Rust-multivariate-linear-regression against try#36dbcaee1a55543dfc181be52a69d99ff46ff62f for pr-122960-3 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FmichaelSink%2FRust-multivariate-linear-regression" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/michaelSink/Rust-multivariate-linear-regression on toolchain 36dbcaee1a55543dfc181be52a69d99ff46ff62f [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+36dbcaee1a55543dfc181be52a69d99ff46ff62f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/michaelSink/Rust-multivariate-linear-regression [INFO] finished tweaking git repo https://github.com/michaelSink/Rust-multivariate-linear-regression [INFO] tweaked toml for git repo https://github.com/michaelSink/Rust-multivariate-linear-regression written to /workspace/builds/worker-5-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/michaelSink/Rust-multivariate-linear-regression 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" "+36dbcaee1a55543dfc181be52a69d99ff46ff62f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "+36dbcaee1a55543dfc181be52a69d99ff46ff62f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 82c1f4be372015f0be2c44fa7b4e89581c53ea6fcfc54149274f7d12accda174 [INFO] running `Command { std: "docker" "start" "-a" "82c1f4be372015f0be2c44fa7b4e89581c53ea6fcfc54149274f7d12accda174", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "82c1f4be372015f0be2c44fa7b4e89581c53ea6fcfc54149274f7d12accda174", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "82c1f4be372015f0be2c44fa7b4e89581c53ea6fcfc54149274f7d12accda174", kill_on_drop: false }` [INFO] [stdout] 82c1f4be372015f0be2c44fa7b4e89581c53ea6fcfc54149274f7d12accda174 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "+36dbcaee1a55543dfc181be52a69d99ff46ff62f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 9cc78ccc83db8cd8c011966a05534d77a53680aceb296f2a25791b7cbc0f1090 [INFO] running `Command { std: "docker" "start" "-a" "9cc78ccc83db8cd8c011966a05534d77a53680aceb296f2a25791b7cbc0f1090", kill_on_drop: false }` [INFO] [stderr] Copying to /tmp/fixit [INFO] [stderr] skipping non-2021 edition `2018` [INFO] running `Command { std: "docker" "inspect" "9cc78ccc83db8cd8c011966a05534d77a53680aceb296f2a25791b7cbc0f1090", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9cc78ccc83db8cd8c011966a05534d77a53680aceb296f2a25791b7cbc0f1090", kill_on_drop: false }` [INFO] [stdout] 9cc78ccc83db8cd8c011966a05534d77a53680aceb296f2a25791b7cbc0f1090