[INFO] cloning repository https://github.com/DarshKodwani/q_learning_rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/DarshKodwani/q_learning_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDarshKodwani%2Fq_learning_rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDarshKodwani%2Fq_learning_rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 92bf012738069056a6fbf0b42493add8b6f564e8
[INFO] checking DarshKodwani/q_learning_rust against try#3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f for pr-87248
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDarshKodwani%2Fq_learning_rust" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/DarshKodwani/q_learning_rust on toolchain 3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/DarshKodwani/q_learning_rust
[INFO] finished tweaking git repo https://github.com/DarshKodwani/q_learning_rust
[INFO] tweaked toml for git repo https://github.com/DarshKodwani/q_learning_rust written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/DarshKodwani/q_learning_rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ndarray v0.15.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1b7454adc613d140952f053a62458f82c84be749d7b3b6eecd59b06eb4c9074d
[INFO] running `Command { std: "docker" "start" "-a" "1b7454adc613d140952f053a62458f82c84be749d7b3b6eecd59b06eb4c9074d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1b7454adc613d140952f053a62458f82c84be749d7b3b6eecd59b06eb4c9074d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1b7454adc613d140952f053a62458f82c84be749d7b3b6eecd59b06eb4c9074d", kill_on_drop: false }`
[INFO] [stdout] 1b7454adc613d140952f053a62458f82c84be749d7b3b6eecd59b06eb4c9074d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0f2a8420d833ac36be7fcd621a941113cbf8c832bebef2dafbb042c8e0c40add
[INFO] running `Command { std: "docker" "start" "-a" "0f2a8420d833ac36be7fcd621a941113cbf8c832bebef2dafbb042c8e0c40add", kill_on_drop: false }`
[INFO] [stderr]     Checking rawpointer v0.2.1
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]     Checking matrixmultiply v0.3.1
[INFO] [stderr]     Checking num-complex v0.4.0
[INFO] [stderr]     Checking num-integer v0.1.44
[INFO] [stderr]     Checking ndarray v0.15.3
[INFO] [stderr]     Checking q_learning v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `actions`
[INFO] [stdout]   --> src/main.rs:20:9
[INFO] [stdout]    |
[INFO] [stdout] 20 |     let actions = [
[INFO] [stdout]    |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_actions`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `reward`
[INFO] [stdout]   --> src/main.rs:68:9
[INFO] [stdout]    |
[INFO] [stdout] 68 |     let reward = arr2(&[
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_reward`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `actions`
[INFO] [stdout]   --> src/main.rs:20:9
[INFO] [stdout]    |
[INFO] [stdout] 20 |     let actions = [
[INFO] [stdout]    |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_actions`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `reward`
[INFO] [stdout]   --> src/main.rs:68:9
[INFO] [stdout]    |
[INFO] [stdout] 68 |     let reward = arr2(&[
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_reward`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.67s
[INFO] running `Command { std: "docker" "inspect" "0f2a8420d833ac36be7fcd621a941113cbf8c832bebef2dafbb042c8e0c40add", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0f2a8420d833ac36be7fcd621a941113cbf8c832bebef2dafbb042c8e0c40add", kill_on_drop: false }`
[INFO] [stdout] 0f2a8420d833ac36be7fcd621a941113cbf8c832bebef2dafbb042c8e0c40add