[INFO] cloning repository https://github.com/0xtito/rusty-micrograd
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/0xtito/rusty-micrograd" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F0xtito%2Frusty-micrograd", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F0xtito%2Frusty-micrograd'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a03d8e274b1b1b122c131c376220ecc85a70cb38
[INFO] checking 0xtito/rusty-micrograd/a03d8e274b1b1b122c131c376220ecc85a70cb38 against master#ab869e094a907cc5d19b4080f22eccaf347f1f95 for pr-129604
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F0xtito%2Frusty-micrograd" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/0xtito/rusty-micrograd on toolchain ab869e094a907cc5d19b4080f22eccaf347f1f95
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/0xtito/rusty-micrograd
[INFO] finished tweaking git repo https://github.com/0xtito/rusty-micrograd
[INFO] tweaked toml for git repo https://github.com/0xtito/rusty-micrograd written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/0xtito/rusty-micrograd 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" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded yeslogic-fontconfig-sys v3.2.0
[INFO] [stderr]   Downloaded font-kit v0.11.0
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[INFO] [stderr]   Downloaded freetype v0.7.2
[INFO] [stderr]   Downloaded ttf-parser v0.17.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5ab326d14ba1fdbc96b678286d01eb5512ca69209b3aa1da9767ccb1e6473e36
[INFO] running `Command { std: "docker" "start" "-a" "5ab326d14ba1fdbc96b678286d01eb5512ca69209b3aa1da9767ccb1e6473e36", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5ab326d14ba1fdbc96b678286d01eb5512ca69209b3aa1da9767ccb1e6473e36", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5ab326d14ba1fdbc96b678286d01eb5512ca69209b3aa1da9767ccb1e6473e36", kill_on_drop: false }`
[INFO] [stdout] 5ab326d14ba1fdbc96b678286d01eb5512ca69209b3aa1da9767ccb1e6473e36
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b62556ab75348a8c121101fa0f5d1ede84522b48271b8d65a111e341921c0808
[INFO] running `Command { std: "docker" "start" "-a" "b62556ab75348a8c121101fa0f5d1ede84522b48271b8d65a111e341921c0808", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.154
[INFO] [stderr]    Compiling pkg-config v0.3.30
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling semver v1.0.22
[INFO] [stderr]    Compiling crc32fast v1.4.0
[INFO] [stderr]    Compiling cc v1.0.97
[INFO] [stderr]     Checking libloading v0.8.3
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]    Compiling matrixmultiply v0.3.8
[INFO] [stderr]     Checking plotters-backend v0.3.5
[INFO] [stderr]     Checking log v0.4.21
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[INFO] [stderr]     Checking weezl v0.1.8
[INFO] [stderr]     Checking jpeg-decoder v0.3.1
[INFO] [stderr]     Checking walkdir v2.5.0
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[INFO] [stderr]     Checking dlib v0.5.2
[INFO] [stderr]     Checking fixedbitset v0.2.0
[INFO] [stderr]     Checking rawpointer v0.2.1
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[INFO] [stderr]     Checking ttf-parser v0.17.1
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[INFO] [stderr]    Compiling yeslogic-fontconfig-sys v3.2.0
[INFO] [stderr]     Checking flate2 v1.0.30
[INFO] [stderr]    Compiling rustc_version v0.4.0
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[INFO] [stderr]     Checking getrandom v0.2.15
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[INFO] [stderr]     Checking rand_core v0.6.4
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[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking num-integer v0.1.46
[INFO] [stderr]     Checking chrono v0.4.38
[INFO] [stderr]     Checking num-complex v0.4.5
[INFO] [stderr]     Checking rand v0.8.5
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[INFO] [stderr]     Checking petgraph-evcxr v0.2.0
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[INFO] [stderr]     Checking rusty-micrograd v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function `from` is never used
[INFO] [stdout]   --> src/neuron.rs:24:12
[INFO] [stdout]    |
[INFO] [stdout] 10 | impl Neuron {
[INFO] [stdout]    | ----------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 24 |     pub fn from(nin: i32) -> Neuron {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `from` is never used
[INFO] [stdout]   --> src/neuron.rs:24:12
[INFO] [stdout]    |
[INFO] [stdout] 10 | impl Neuron {
[INFO] [stdout]    | ----------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 24 |     pub fn from(nin: i32) -> Neuron {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 16.70s
[INFO] running `Command { std: "docker" "inspect" "b62556ab75348a8c121101fa0f5d1ede84522b48271b8d65a111e341921c0808", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b62556ab75348a8c121101fa0f5d1ede84522b48271b8d65a111e341921c0808", kill_on_drop: false }`
[INFO] [stdout] b62556ab75348a8c121101fa0f5d1ede84522b48271b8d65a111e341921c0808