[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 a5689b034ad287112f709693384a37f1377eb9cc for pr-129249-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Femrivero%2Frust_grokking_algorithms" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/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-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/emrivero/rust_grokking_algorithms on toolchain a5689b034ad287112f709693384a37f1377eb9cc
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a5689b034ad287112f709693384a37f1377eb9cc" "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" "+a5689b034ad287112f709693384a37f1377eb9cc" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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] 26e6122014b76d831129bdcfebead07162c401a58afb8f09c66d55b83149e67b
[INFO] running `Command { std: "docker" "start" "26e6122014b76d831129bdcfebead07162c401a58afb8f09c66d55b83149e67b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "26e6122014b76d831129bdcfebead07162c401a58afb8f09c66d55b83149e67b", 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" "26e6122014b76d831129bdcfebead07162c401a58afb8f09c66d55b83149e67b" "/opt/rustwide/cargo-home/bin/cargo" "+a5689b034ad287112f709693384a37f1377eb9cc" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "26e6122014b76d831129bdcfebead07162c401a58afb8f09c66d55b83149e67b", 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" "26e6122014b76d831129bdcfebead07162c401a58afb8f09c66d55b83149e67b" "/opt/rustwide/cargo-home/bin/cargo" "+a5689b034ad287112f709693384a37f1377eb9cc" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v0.1.8
[INFO] [stderr]     Checking rand_core v0.4.2
[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_core v0.3.1
[INFO] [stderr]     Checking rand_jitter v0.1.4
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]     Checking rand_hc v0.1.0
[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] [stdout] error: useless conversion to the same type: `Vec<i32>`
[INFO] [stdout]   --> src/lib.rs:42:61
[INFO] [stdout]    |
[INFO] [stdout] 42 |         assert_eq!(selection_sort::selection_sort::execute(&arr.into()), vec![])
[INFO] [stdout]    |                                                             ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout]    = note: `#[deny(self_type_conversion)]` on by default
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]    |
[INFO] [stdout] 42 -         assert_eq!(selection_sort::selection_sort::execute(&arr.into()), vec![])
[INFO] [stdout] 42 +         assert_eq!(selection_sort::selection_sort::execute(&arr), vec![])
[INFO] [stdout]    |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]    |
[INFO] [stdout] 42 -         assert_eq!(selection_sort::selection_sort::execute(&arr.into()), vec![])
[INFO] [stdout] 42 +         assert_eq!(selection_sort::selection_sort::execute(&<Vec<i32> as Into<_>>::into(arr)), vec![])
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `Vec<i32>`
[INFO] [stdout]   --> src/lib.rs:50:54
[INFO] [stdout]    |
[INFO] [stdout] 50 |             selection_sort::selection_sort::execute(&arr.into()),
[INFO] [stdout]    |                                                      ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]    |
[INFO] [stdout] 50 -             selection_sort::selection_sort::execute(&arr.into()),
[INFO] [stdout] 50 +             selection_sort::selection_sort::execute(&arr),
[INFO] [stdout]    |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]    |
[INFO] [stdout] 50 -             selection_sort::selection_sort::execute(&arr.into()),
[INFO] [stdout] 50 +             selection_sort::selection_sort::execute(&<Vec<i32> as Into<_>>::into(arr)),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `Vec<i32>`
[INFO] [stdout]   --> src/lib.rs:59:53
[INFO] [stdout]    |
[INFO] [stdout] 59 |         assert_eq!(quick_sort::quick_sort::execute(&arr.into()), vec![])
[INFO] [stdout]    |                                                     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]    |
[INFO] [stdout] 59 -         assert_eq!(quick_sort::quick_sort::execute(&arr.into()), vec![])
[INFO] [stdout] 59 +         assert_eq!(quick_sort::quick_sort::execute(&arr), vec![])
[INFO] [stdout]    |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]    |
[INFO] [stdout] 59 -         assert_eq!(quick_sort::quick_sort::execute(&arr.into()), vec![])
[INFO] [stdout] 59 +         assert_eq!(quick_sort::quick_sort::execute(&<Vec<i32> as Into<_>>::into(arr)), vec![])
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `Vec<i32>`
[INFO] [stdout]   --> src/lib.rs:67:46
[INFO] [stdout]    |
[INFO] [stdout] 67 |             quick_sort::quick_sort::execute(&arr.into()),
[INFO] [stdout]    |                                              ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]    |
[INFO] [stdout] 67 -             quick_sort::quick_sort::execute(&arr.into()),
[INFO] [stdout] 67 +             quick_sort::quick_sort::execute(&arr),
[INFO] [stdout]    |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]    |
[INFO] [stdout] 67 -             quick_sort::quick_sort::execute(&arr.into()),
[INFO] [stdout] 67 +             quick_sort::quick_sort::execute(&<Vec<i32> as Into<_>>::into(arr)),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `grokking_algorithms` (lib test) due to 4 previous errors; 4 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "26e6122014b76d831129bdcfebead07162c401a58afb8f09c66d55b83149e67b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "26e6122014b76d831129bdcfebead07162c401a58afb8f09c66d55b83149e67b", kill_on_drop: false }`
[INFO] [stdout] 26e6122014b76d831129bdcfebead07162c401a58afb8f09c66d55b83149e67b
