[INFO] cloning repository https://github.com/Pranjal-Patel/neural_network
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Pranjal-Patel/neural_network" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPranjal-Patel%2Fneural_network", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPranjal-Patel%2Fneural_network'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e5caa5036b50f64250e91f8c61d6f98bedbf525b
[INFO] checking Pranjal-Patel/neural_network against master#336209eef13882bd1e211b24779584cb7ef911eb for pr-129249
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPranjal-Patel%2Fneural_network" "/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/Pranjal-Patel/neural_network on toolchain 336209eef13882bd1e211b24779584cb7ef911eb
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+336209eef13882bd1e211b24779584cb7ef911eb" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Pranjal-Patel/neural_network
[INFO] finished tweaking git repo https://github.com/Pranjal-Patel/neural_network
[INFO] tweaked toml for git repo https://github.com/Pranjal-Patel/neural_network written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/Pranjal-Patel/neural_network 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" "+336209eef13882bd1e211b24779584cb7ef911eb" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded nanoserde v0.1.35
[INFO] [stderr]   Downloaded nanoserde-derive v0.1.21
[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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+336209eef13882bd1e211b24779584cb7ef911eb" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 004624c30d3e5d1d8a74ac7c29b1954607abf35197d665869026646f6a9e8d3e
[INFO] running `Command { std: "docker" "start" "-a" "004624c30d3e5d1d8a74ac7c29b1954607abf35197d665869026646f6a9e8d3e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "004624c30d3e5d1d8a74ac7c29b1954607abf35197d665869026646f6a9e8d3e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "004624c30d3e5d1d8a74ac7c29b1954607abf35197d665869026646f6a9e8d3e", kill_on_drop: false }`
[INFO] [stdout] 004624c30d3e5d1d8a74ac7c29b1954607abf35197d665869026646f6a9e8d3e
[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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+336209eef13882bd1e211b24779584cb7ef911eb" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e1aeb1d6c5cf31e6bac7246d7c96971313149813a52e450e7a8a00e684574f42
[INFO] running `Command { std: "docker" "start" "-a" "e1aeb1d6c5cf31e6bac7246d7c96971313149813a52e450e7a8a00e684574f42", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.150
[INFO] [stderr]    Compiling nanoserde-derive v0.1.21
[INFO] [stderr]     Checking nanoserde v0.1.35
[INFO] [stderr]     Checking getrandom v0.2.11
[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 neural_network v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `activations::ActivationFunction`
[INFO] [stdout]  --> src/main.rs:3:22
[INFO] [stdout]   |
[INFO] [stdout] 3 | use neural_network::{activations::ActivationFunction, network::Network};
[INFO] [stdout]   |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `activations::ActivationFunction`
[INFO] [stdout]  --> src/main.rs:3:22
[INFO] [stdout]   |
[INFO] [stdout] 3 | use neural_network::{activations::ActivationFunction, network::Network};
[INFO] [stdout]   |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.45s
[INFO] running `Command { std: "docker" "inspect" "e1aeb1d6c5cf31e6bac7246d7c96971313149813a52e450e7a8a00e684574f42", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e1aeb1d6c5cf31e6bac7246d7c96971313149813a52e450e7a8a00e684574f42", kill_on_drop: false }`
[INFO] [stdout] e1aeb1d6c5cf31e6bac7246d7c96971313149813a52e450e7a8a00e684574f42