[INFO] cloning repository https://github.com/carlosvneves/micrograd_rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/carlosvneves/micrograd_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcarlosvneves%2Fmicrograd_rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcarlosvneves%2Fmicrograd_rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5d7d0bce4525b587d207b87939e153dd5da99493
[INFO] testing carlosvneves/micrograd_rust against try#b83b707f97d809763b7861afa7638871f3339a33 for pr-145838-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcarlosvneves%2Fmicrograd_rust" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/carlosvneves/micrograd_rust
[INFO] finished tweaking git repo https://github.com/carlosvneves/micrograd_rust
[INFO] tweaked toml for git repo https://github.com/carlosvneves/micrograd_rust written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/carlosvneves/micrograd_rust on toolchain b83b707f97d809763b7861afa7638871f3339a33
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/carlosvneves/micrograd_rust 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" "+b83b707f97d809763b7861afa7638871f3339a33" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f4b74e2e422fa0db7eb870796f571bc34cf52069382ec20bdc361e5877cd0fcf
[INFO] running `Command { std: "docker" "start" "-a" "f4b74e2e422fa0db7eb870796f571bc34cf52069382ec20bdc361e5877cd0fcf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f4b74e2e422fa0db7eb870796f571bc34cf52069382ec20bdc361e5877cd0fcf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f4b74e2e422fa0db7eb870796f571bc34cf52069382ec20bdc361e5877cd0fcf", kill_on_drop: false }`
[INFO] [stdout] f4b74e2e422fa0db7eb870796f571bc34cf52069382ec20bdc361e5877cd0fcf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 738382b6e00e6e970525beefbe3959b4d3c152e26d9d6ce33d3742fee66edcc5
[INFO] running `Command { std: "docker" "start" "-a" "738382b6e00e6e970525beefbe3959b4d3c152e26d9d6ce33d3742fee66edcc5", kill_on_drop: false }`
[INFO] [stderr]    Compiling micrograd_rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `NeuralNetwork` is never constructed
[INFO] [stdout]  --> src/engine/neural_network.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct NeuralNetwork {
[INFO] [stdout]   |            ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.42s
[INFO] running `Command { std: "docker" "inspect" "738382b6e00e6e970525beefbe3959b4d3c152e26d9d6ce33d3742fee66edcc5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "738382b6e00e6e970525beefbe3959b4d3c152e26d9d6ce33d3742fee66edcc5", kill_on_drop: false }`
[INFO] [stdout] 738382b6e00e6e970525beefbe3959b4d3c152e26d9d6ce33d3742fee66edcc5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 066e2ac1ed4bd5c9c3a97f91406e6157cb2ec6b12476a2849f1307ef72e1c59a
[INFO] running `Command { std: "docker" "start" "-a" "066e2ac1ed4bd5c9c3a97f91406e6157cb2ec6b12476a2849f1307ef72e1c59a", kill_on_drop: false }`
[INFO] [stderr]    Compiling micrograd_rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `NeuralNetwork` is never constructed
[INFO] [stdout]  --> src/engine/neural_network.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct NeuralNetwork {
[INFO] [stdout]   |            ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.40s
[INFO] running `Command { std: "docker" "inspect" "066e2ac1ed4bd5c9c3a97f91406e6157cb2ec6b12476a2849f1307ef72e1c59a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "066e2ac1ed4bd5c9c3a97f91406e6157cb2ec6b12476a2849f1307ef72e1c59a", kill_on_drop: false }`
[INFO] [stdout] 066e2ac1ed4bd5c9c3a97f91406e6157cb2ec6b12476a2849f1307ef72e1c59a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] e90e859634d9be214173fb789fdf0430f7c26f4d6394918b51a645c7811619be
[INFO] running `Command { std: "docker" "start" "-a" "e90e859634d9be214173fb789fdf0430f7c26f4d6394918b51a645c7811619be", kill_on_drop: false }`
[INFO] [stderr] warning: struct `NeuralNetwork` is never constructed
[INFO] [stderr]  --> src/engine/neural_network.rs:1:12
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub struct NeuralNetwork {
[INFO] [stderr]   |            ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `micrograd_rust` (bin "micrograd_rust" test) generated 1 warning
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/micrograd_rust-c81eb98726d5828d)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "e90e859634d9be214173fb789fdf0430f7c26f4d6394918b51a645c7811619be", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e90e859634d9be214173fb789fdf0430f7c26f4d6394918b51a645c7811619be", kill_on_drop: false }`
[INFO] [stdout] e90e859634d9be214173fb789fdf0430f7c26f4d6394918b51a645c7811619be