[INFO] cloning repository https://github.com/TsaoLun/ml-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/TsaoLun/ml-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTsaoLun%2Fml-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTsaoLun%2Fml-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c2bb407ab86489144631d3c3f325f74a5dadde15
[INFO] checking TsaoLun/ml-rs/c2bb407ab86489144631d3c3f325f74a5dadde15 against master#f167efad2f51088d86180ee89177b3d7c9e7c2f5 for pr-129543
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTsaoLun%2Fml-rs" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/TsaoLun/ml-rs on toolchain f167efad2f51088d86180ee89177b3d7c9e7c2f5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f167efad2f51088d86180ee89177b3d7c9e7c2f5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/TsaoLun/ml-rs
[INFO] finished tweaking git repo https://github.com/TsaoLun/ml-rs
[INFO] tweaked toml for git repo https://github.com/TsaoLun/ml-rs written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/TsaoLun/ml-rs 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" "+f167efad2f51088d86180ee89177b3d7c9e7c2f5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded mnist v0.5.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+f167efad2f51088d86180ee89177b3d7c9e7c2f5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1fcf10dc5d0eac912f681cc3644d99bf61ef08f707c676f8872545863db182fa
[INFO] running `Command { std: "docker" "start" "-a" "1fcf10dc5d0eac912f681cc3644d99bf61ef08f707c676f8872545863db182fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1fcf10dc5d0eac912f681cc3644d99bf61ef08f707c676f8872545863db182fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1fcf10dc5d0eac912f681cc3644d99bf61ef08f707c676f8872545863db182fa", kill_on_drop: false }`
[INFO] [stdout] 1fcf10dc5d0eac912f681cc3644d99bf61ef08f707c676f8872545863db182fa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+f167efad2f51088d86180ee89177b3d7c9e7c2f5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5e59ae0d49cccffa775f7d4c029d38a216437c0f5d7656dde182f1d00e7aab49
[INFO] running `Command { std: "docker" "start" "-a" "5e59ae0d49cccffa775f7d4c029d38a216437c0f5d7656dde182f1d00e7aab49", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]     Checking rawpointer v0.2.1
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking matrixmultiply v0.3.2
[INFO] [stderr]     Checking mnist v0.5.0
[INFO] [stderr]     Checking num-complex v0.4.3
[INFO] [stderr]     Checking ndarray v0.15.6
[INFO] [stderr]     Checking ml-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `crate::learn_data::LearnData`
[INFO] [stdout]  --> src/ch3_nlp.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use crate::learn_data::LearnData;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `acc`
[INFO] [stdout]    --> src/ch3_nlp.rs:186:13
[INFO] [stdout]     |
[INFO] [stdout] 186 |     let mut acc = 0;
[INFO] [stdout]     |             ^^^ help: if this is intentional, prefix it with an underscore: `_acc`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `p`
[INFO] [stdout]    --> src/ch3_nlp.rs:188:13
[INFO] [stdout]     |
[INFO] [stdout] 188 |         let p = predict(network.clone(), test[i].image_parts.map(|e| *e as f64));
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_p`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ch3_nlp.rs:186:9
[INFO] [stdout]     |
[INFO] [stdout] 186 |     let mut acc = 0;
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.16s
[INFO] running `Command { std: "docker" "inspect" "5e59ae0d49cccffa775f7d4c029d38a216437c0f5d7656dde182f1d00e7aab49", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5e59ae0d49cccffa775f7d4c029d38a216437c0f5d7656dde182f1d00e7aab49", kill_on_drop: false }`
[INFO] [stdout] 5e59ae0d49cccffa775f7d4c029d38a216437c0f5d7656dde182f1d00e7aab49