[INFO] cloning repository https://github.com/europeanplaice/rust_cavemen
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/europeanplaice/rust_cavemen" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Feuropeanplaice%2Frust_cavemen", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Feuropeanplaice%2Frust_cavemen'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] fb1ff41bdeae8aab92974bfe438dfffd5ddb9e86
[INFO] checking europeanplaice/rust_cavemen against try#028201683a76a5cd349729c6819c46607119c4e8 for pr-144157
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Feuropeanplaice%2Frust_cavemen" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/europeanplaice/rust_cavemen
[INFO] finished tweaking git repo https://github.com/europeanplaice/rust_cavemen
[INFO] tweaked toml for git repo https://github.com/europeanplaice/rust_cavemen written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/europeanplaice/rust_cavemen on toolchain 028201683a76a5cd349729c6819c46607119c4e8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+028201683a76a5cd349729c6819c46607119c4e8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/europeanplaice/rust_cavemen 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" "+028201683a76a5cd349729c6819c46607119c4e8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+028201683a76a5cd349729c6819c46607119c4e8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7791478bb474f1f5a36660855eb3b7d9f488b16f55b8867b741c0befd6089e4a
[INFO] running `Command { std: "docker" "start" "-a" "7791478bb474f1f5a36660855eb3b7d9f488b16f55b8867b741c0befd6089e4a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7791478bb474f1f5a36660855eb3b7d9f488b16f55b8867b741c0befd6089e4a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7791478bb474f1f5a36660855eb3b7d9f488b16f55b8867b741c0befd6089e4a", kill_on_drop: false }`
[INFO] [stdout] 7791478bb474f1f5a36660855eb3b7d9f488b16f55b8867b741c0befd6089e4a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+028201683a76a5cd349729c6819c46607119c4e8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dabfb4a68143e70c25c560b1a305081e5a6b6b963199bcb069457a098386f1bc
[INFO] running `Command { std: "docker" "start" "-a" "dabfb4a68143e70c25c560b1a305081e5a6b6b963199bcb069457a098386f1bc", kill_on_drop: false }`
[INFO] [stderr]     Checking rust_cavemen v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function `maximum_sum` is never used
[INFO] [stdout]  --> src/dp_module.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 |     pub fn maximum_sum(a: &Vec<i32>) -> i32 {
[INFO] [stdout]   |            ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `knapsack` is never used
[INFO] [stdout]   --> src/dp_module.rs:18:12
[INFO] [stdout]    |
[INFO] [stdout] 18 |     pub fn knapsack(value: &Vec<i32>, weight: &Vec<i32>) -> i32 {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.29s
[INFO] running `Command { std: "docker" "inspect" "dabfb4a68143e70c25c560b1a305081e5a6b6b963199bcb069457a098386f1bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dabfb4a68143e70c25c560b1a305081e5a6b6b963199bcb069457a098386f1bc", kill_on_drop: false }`
[INFO] [stdout] dabfb4a68143e70c25c560b1a305081e5a6b6b963199bcb069457a098386f1bc