[INFO] cloning repository https://github.com/emrivero/rust_grokking_algorithms
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/emrivero/rust_grokking_algorithms" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Femrivero%2Frust_grokking_algorithms", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Femrivero%2Frust_grokking_algorithms'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d626c69e95bb41a3bd371e489e56805da739297e
[INFO] checking emrivero/rust_grokking_algorithms against 5c543b0b8c73c7b72bc8284ced4fb22ead15734d for pr-160186
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Femrivero%2Frust_grokking_algorithms" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/emrivero/rust_grokking_algorithms
[INFO] finished tweaking git repo https://github.com/emrivero/rust_grokking_algorithms
[INFO] tweaked toml for git repo https://github.com/emrivero/rust_grokking_algorithms written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/emrivero/rust_grokking_algorithms on toolchain 5c543b0b8c73c7b72bc8284ced4fb22ead15734d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5c543b0b8c73c7b72bc8284ced4fb22ead15734d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/emrivero/rust_grokking_algorithms 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" "+5c543b0b8c73c7b72bc8284ced4fb22ead15734d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded libc v0.2.141
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 817a679e5430fa57574fe52d86f8afe620b6aa61ece5a08127b331f932563611
[INFO] running `Command { std: "docker" "start" "817a679e5430fa57574fe52d86f8afe620b6aa61ece5a08127b331f932563611", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "817a679e5430fa57574fe52d86f8afe620b6aa61ece5a08127b331f932563611", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "817a679e5430fa57574fe52d86f8afe620b6aa61ece5a08127b331f932563611" "/opt/rustwide/cargo-home/bin/cargo" "+5c543b0b8c73c7b72bc8284ced4fb22ead15734d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "817a679e5430fa57574fe52d86f8afe620b6aa61ece5a08127b331f932563611", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "817a679e5430fa57574fe52d86f8afe620b6aa61ece5a08127b331f932563611" "/opt/rustwide/cargo-home/bin/cargo" "+5c543b0b8c73c7b72bc8284ced4fb22ead15734d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v0.1.8
[INFO] [stderr]    Compiling libc v0.2.141
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking grokking_algorithms v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `graph`
[INFO] [stdout]  --> src/graph/dijkstra.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     graph: &HashMap<String, Vec<String>>,
[INFO] [stdout]   |     ^^^^^ help: if this is intentional, prefix it with an underscore: `_graph`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `node`
[INFO] [stdout]  --> src/graph/dijkstra.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     node: &String,
[INFO] [stdout]   |     ^^^^ help: if this is intentional, prefix it with an underscore: `_node`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `finish_node`
[INFO] [stdout]  --> src/graph/dijkstra.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     finish_node: &String,
[INFO] [stdout]   |     ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_finish_node`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `visited_param`
[INFO] [stdout]  --> src/graph/dijkstra.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     visited_param: Option<&Vec<&String>>, /* = "!" */
[INFO] [stdout]   |     ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_visited_param`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `graph`
[INFO] [stdout]  --> src/graph/dijkstra.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     graph: &HashMap<String, Vec<String>>,
[INFO] [stdout]   |     ^^^^^ help: if this is intentional, prefix it with an underscore: `_graph`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `node`
[INFO] [stdout]  --> src/graph/dijkstra.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     node: &String,
[INFO] [stdout]   |     ^^^^ help: if this is intentional, prefix it with an underscore: `_node`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `finish_node`
[INFO] [stdout]  --> src/graph/dijkstra.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     finish_node: &String,
[INFO] [stdout]   |     ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_finish_node`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `visited_param`
[INFO] [stdout]  --> src/graph/dijkstra.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     visited_param: Option<&Vec<&String>>, /* = "!" */
[INFO] [stdout]   |     ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_visited_param`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.18s
[INFO] running `Command { std: "docker" "inspect" "817a679e5430fa57574fe52d86f8afe620b6aa61ece5a08127b331f932563611", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "817a679e5430fa57574fe52d86f8afe620b6aa61ece5a08127b331f932563611", kill_on_drop: false }`
[INFO] [stdout] 817a679e5430fa57574fe52d86f8afe620b6aa61ece5a08127b331f932563611
