[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 against master#22572d0994593197593e2a1b7b18d720a9a349a7 for pr-126452-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F0xtito%2Frusty-micrograd" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/0xtito/rusty-micrograd on toolchain 22572d0994593197593e2a1b7b18d720a9a349a7
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "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-7-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" "+22572d0994593197593e2a1b7b18d720a9a349a7" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+22572d0994593197593e2a1b7b18d720a9a349a7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dabce7f8d956d0e4c775c026b1e13c8c22e5b1f3752ee8a97c775a2fef651da8
[INFO] running `Command { std: "docker" "start" "-a" "dabce7f8d956d0e4c775c026b1e13c8c22e5b1f3752ee8a97c775a2fef651da8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dabce7f8d956d0e4c775c026b1e13c8c22e5b1f3752ee8a97c775a2fef651da8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dabce7f8d956d0e4c775c026b1e13c8c22e5b1f3752ee8a97c775a2fef651da8", kill_on_drop: false }`
[INFO] [stdout] dabce7f8d956d0e4c775c026b1e13c8c22e5b1f3752ee8a97c775a2fef651da8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+22572d0994593197593e2a1b7b18d720a9a349a7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 257f2bc0ce1afdf616a5eaf9c3ba5f7b9e0db54d09c8016deededb32915cb554
[INFO] running `Command { std: "docker" "start" "-a" "257f2bc0ce1afdf616a5eaf9c3ba5f7b9e0db54d09c8016deededb32915cb554", kill_on_drop: false }`
[INFO] [stderr]    Compiling semver v1.0.22
[INFO] [stderr]    Compiling crc32fast v1.4.0
[INFO] [stderr]     Checking simd-adler32 v0.3.7
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[INFO] [stderr]    Compiling matrixmultiply v0.3.8
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[INFO] [stderr]    Compiling yeslogic-fontconfig-sys v3.2.0
[INFO] [stderr]    Compiling font-kit v0.11.0
[INFO] [stderr]     Checking weezl v0.1.8
[INFO] [stderr]     Checking plotters-backend v0.3.5
[INFO] [stderr]     Checking getrandom v0.2.15
[INFO] [stderr]     Checking dirs-sys-next v0.1.2
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[INFO] [stderr]     Checking jpeg-decoder v0.3.1
[INFO] [stderr]     Checking float-ord v0.2.0
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[INFO] [stderr]     Checking fdeflate v0.3.4
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[INFO] [stderr]    Compiling rustc_version v0.4.0
[INFO] [stderr]     Checking flate2 v1.0.30
[INFO] [stderr]    Compiling pathfinder_simd v0.5.3
[INFO] [stderr]     Checking rand_chacha v0.3.1
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[INFO] [stderr]     Checking ndarray v0.15.6
[INFO] [stderr]    Compiling freetype-sys v0.20.1
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[INFO] [stderr]     Checking freetype v0.7.2
[INFO] [stderr]     Checking plotters v0.3.5
[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: 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: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 20.26s
[INFO] running `Command { std: "docker" "inspect" "257f2bc0ce1afdf616a5eaf9c3ba5f7b9e0db54d09c8016deededb32915cb554", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "257f2bc0ce1afdf616a5eaf9c3ba5f7b9e0db54d09c8016deededb32915cb554", kill_on_drop: false }`
[INFO] [stdout] 257f2bc0ce1afdf616a5eaf9c3ba5f7b9e0db54d09c8016deededb32915cb554
[INFO] checking 0xtito/rusty-micrograd against try#6289438dbad80b1a0029c66dd3f6abf57c2c51be for pr-126452-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F0xtito%2Frusty-micrograd" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/0xtito/rusty-micrograd on toolchain 6289438dbad80b1a0029c66dd3f6abf57c2c51be
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "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-7-tc2/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" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fcc368df62ca921dfaa0a9d161d2b40b0214a1aa3a4e6114ec64647cdd147fe4
[INFO] running `Command { std: "docker" "start" "-a" "fcc368df62ca921dfaa0a9d161d2b40b0214a1aa3a4e6114ec64647cdd147fe4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fcc368df62ca921dfaa0a9d161d2b40b0214a1aa3a4e6114ec64647cdd147fe4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fcc368df62ca921dfaa0a9d161d2b40b0214a1aa3a4e6114ec64647cdd147fe4", kill_on_drop: false }`
[INFO] [stdout] fcc368df62ca921dfaa0a9d161d2b40b0214a1aa3a4e6114ec64647cdd147fe4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f3429404b1330f30731956fc1daf60ae6740fb2496fa4babec37cb591b089555
[INFO] running `Command { std: "docker" "start" "-a" "f3429404b1330f30731956fc1daf60ae6740fb2496fa4babec37cb591b089555", kill_on_drop: false }`
[INFO] [stderr]    Compiling semver v1.0.22
[INFO] [stderr]     Checking simd-adler32 v0.3.7
[INFO] [stderr]    Compiling crc32fast v1.4.0
[INFO] [stderr]    Compiling cc v1.0.97
[INFO] [stderr]     Checking libloading v0.8.3
[INFO] [stderr]     Checking color_quant v1.1.0
[INFO] [stderr]    Compiling matrixmultiply v0.3.8
[INFO] [stderr]     Checking weezl v0.1.8
[INFO] [stderr]    Compiling yeslogic-fontconfig-sys v3.2.0
[INFO] [stderr]     Checking jpeg-decoder v0.3.1
[INFO] [stderr]    Compiling font-kit v0.11.0
[INFO] [stderr]     Checking const-cstr v0.3.0
[INFO] [stderr]     Checking log v0.4.21
[INFO] [stderr]     Checking bytemuck v1.15.0
[INFO] [stderr]     Checking getrandom v0.2.15
[INFO] [stderr]     Checking dirs-sys-next v0.1.2
[INFO] [stderr]     Checking plotters-backend v0.3.5
[INFO] [stderr]     Checking rawpointer v0.2.1
[INFO] [stderr]     Checking dirs-next v2.0.0
[INFO] [stderr]     Checking float-ord v0.2.0
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking ppv-lite86 v0.2.17
[INFO] [stderr]     Checking fixedbitset v0.2.0
[INFO] [stderr]     Checking chrono v0.4.38
[INFO] [stderr]     Checking dlib v0.5.2
[INFO] [stderr]     Checking num-integer v0.1.46
[INFO] [stderr]     Checking miniz_oxide v0.7.2
[INFO] [stderr]     Checking fdeflate v0.3.4
[INFO] [stderr]     Checking gif v0.12.0
[INFO] [stderr]     Checking petgraph v0.5.1
[INFO] [stderr]     Checking plotters-svg v0.3.5
[INFO] [stderr]     Checking num-complex v0.4.5
[INFO] [stderr]     Checking ttf-parser v0.17.1
[INFO] [stderr]     Checking uuid v1.8.0
[INFO] [stderr]    Compiling rustc_version v0.4.0
[INFO] [stderr]     Checking flate2 v1.0.30
[INFO] [stderr]    Compiling pathfinder_simd v0.5.3
[INFO] [stderr]     Checking ndarray v0.15.6
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]    Compiling freetype-sys v0.20.1
[INFO] [stderr]     Checking png v0.17.13
[INFO] [stderr]     Checking rand v0.8.5
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[INFO] [stderr]     Checking petgraph-evcxr v0.2.0
[INFO] [stderr]     Checking image v0.24.9
[INFO] [stderr]     Checking plotters-bitmap v0.3.3
[INFO] [stderr]     Checking freetype v0.7.2
[INFO] [stderr]     Checking plotters v0.3.5
[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 18.61s
[INFO] running `Command { std: "docker" "inspect" "f3429404b1330f30731956fc1daf60ae6740fb2496fa4babec37cb591b089555", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f3429404b1330f30731956fc1daf60ae6740fb2496fa4babec37cb591b089555", kill_on_drop: false }`
[INFO] [stdout] f3429404b1330f30731956fc1daf60ae6740fb2496fa4babec37cb591b089555