[INFO] cloning repository https://github.com/italonicacio/tsp-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/italonicacio/tsp-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fitalonicacio%2Ftsp-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fitalonicacio%2Ftsp-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a5ca064d52817748d06677016518a7b86fe319fb
[INFO] linting italonicacio/tsp-rust against nightly for clippy-nonminimal_bool-denied
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fitalonicacio%2Ftsp-rust" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/italonicacio/tsp-rust
[INFO] finished tweaking git repo https://github.com/italonicacio/tsp-rust
[INFO] tweaked toml for git repo https://github.com/italonicacio/tsp-rust written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/italonicacio/tsp-rust on toolchain nightly
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/italonicacio/tsp-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" "+nightly" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+nightly" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bff7cbb7167f59423a5b342bd90587c3a4d1d687a91ef83eec735296cccb6c15
[INFO] running `Command { std: "docker" "start" "-a" "bff7cbb7167f59423a5b342bd90587c3a4d1d687a91ef83eec735296cccb6c15", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bff7cbb7167f59423a5b342bd90587c3a4d1d687a91ef83eec735296cccb6c15", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bff7cbb7167f59423a5b342bd90587c3a4d1d687a91ef83eec735296cccb6c15", kill_on_drop: false }`
[INFO] [stdout] bff7cbb7167f59423a5b342bd90587c3a4d1d687a91ef83eec735296cccb6c15
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+nightly" "clippy" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a4b1bc09ee42e2359c788172b062f8ec59fcd80b593a236008e889ae95916476
[INFO] running `Command { std: "docker" "start" "-a" "a4b1bc09ee42e2359c788172b062f8ec59fcd80b593a236008e889ae95916476", kill_on_drop: false }`
[INFO] [stderr]     Checking tsp v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:77:9
[INFO] [stdout]    |
[INFO] [stdout] 77 |     let mut iter: u32 = 0;
[INFO] [stdout]    |         ----^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:78:9
[INFO] [stdout]    |
[INFO] [stdout] 78 |     let mut current_vertex: u32 = 0;
[INFO] [stdout]    |         ----^^^^^^^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `all_vertices_visited`
[INFO] [stdout]   --> src/main.rs:72:9
[INFO] [stdout]    |
[INFO] [stdout] 72 |     let all_vertices_visited = false;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_all_vertices_visited`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `count_visited_vertices`
[INFO] [stdout]   --> src/main.rs:73:9
[INFO] [stdout]    |
[INFO] [stdout] 73 |     let count_visited_vertices: u32 = 0;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_count_visited_vertices`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `iter`
[INFO] [stdout]   --> src/main.rs:77:9
[INFO] [stdout]    |
[INFO] [stdout] 77 |     let mut iter: u32 = 0;
[INFO] [stdout]    |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_iter`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `current_vertex`
[INFO] [stdout]   --> src/main.rs:78:9
[INFO] [stdout]    |
[INFO] [stdout] 78 |     let mut current_vertex: u32 = 0;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_current_vertex`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `d`, `p`, and `cost_matrix` are never read
[INFO] [stdout]  --> src/main.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | struct Instance {
[INFO] [stdout]   |        -------- fields in this struct
[INFO] [stdout] 7 |     d: usize,
[INFO] [stdout]   |     ^
[INFO] [stdout] 8 |     p: usize,
[INFO] [stdout]   |     ^
[INFO] [stdout] 9 |     cost_matrix: Vec<Vec<i32>>,
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Instance` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `nearest_neighbor` is never used
[INFO] [stdout]   --> src/main.rs:70:4
[INFO] [stdout]    |
[INFO] [stdout] 70 | fn nearest_neighbor(instance: &Instance) {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this boolean expression can be simplified
[INFO] [stdout]   --> src/main.rs:25:12
[INFO] [stdout]    |
[INFO] [stdout] 25 |         if !lines.find("DIMENSION").is_none() {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `lines.find("DIMENSION").is_some()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#nonminimal_bool
[INFO] [stdout]    = note: `#[warn(clippy::nonminimal_bool)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this boolean expression can be simplified
[INFO] [stdout]   --> src/main.rs:31:12
[INFO] [stdout]    |
[INFO] [stdout] 31 |         if !lines.find("P").is_none() {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `lines.find("P").is_some()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#nonminimal_bool
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this boolean expression can be simplified
[INFO] [stdout]   --> src/main.rs:36:12
[INFO] [stdout]    |
[INFO] [stdout] 36 |         if !lines.find("COST").is_none() {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `lines.find("COST").is_some()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#nonminimal_bool
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: found call to `str::trim` before `str::split_whitespace`
[INFO] [stdout]   --> src/main.rs:26:42
[INFO] [stdout]    |
[INFO] [stdout] 26 |             let split: Vec<&str> = lines.trim().split_whitespace().collect();
[INFO] [stdout]    |                                          ^^^^^^^ help: remove `trim()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#trim_split_whitespace
[INFO] [stdout]    = note: `#[warn(clippy::trim_split_whitespace)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: found call to `str::trim` before `str::split_whitespace`
[INFO] [stdout]   --> src/main.rs:32:42
[INFO] [stdout]    |
[INFO] [stdout] 32 |             let split: Vec<&str> = lines.trim().split_whitespace().collect();
[INFO] [stdout]    |                                          ^^^^^^^ help: remove `trim()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#trim_split_whitespace
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: found call to `str::trim` before `str::split_whitespace`
[INFO] [stdout]   --> src/main.rs:47:56
[INFO] [stdout]    |
[INFO] [stdout] 47 |             let mut vector: Vec<Vec<i32>> = vec![lines.trim().split_whitespace().map(|l| l.parse().unwrap()).collect()];
[INFO] [stdout]    |                                                        ^^^^^^^ help: remove `trim()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#trim_split_whitespace
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:77:9
[INFO] [stdout]    |
[INFO] [stdout] 77 |     let mut iter: u32 = 0;
[INFO] [stdout]    |         ----^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:78:9
[INFO] [stdout]    |
[INFO] [stdout] 78 |     let mut current_vertex: u32 = 0;
[INFO] [stdout]    |         ----^^^^^^^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `all_vertices_visited`
[INFO] [stdout]   --> src/main.rs:72:9
[INFO] [stdout]    |
[INFO] [stdout] 72 |     let all_vertices_visited = false;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_all_vertices_visited`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `count_visited_vertices`
[INFO] [stdout]   --> src/main.rs:73:9
[INFO] [stdout]    |
[INFO] [stdout] 73 |     let count_visited_vertices: u32 = 0;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_count_visited_vertices`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `iter`
[INFO] [stdout]   --> src/main.rs:77:9
[INFO] [stdout]    |
[INFO] [stdout] 77 |     let mut iter: u32 = 0;
[INFO] [stdout]    |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_iter`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `current_vertex`
[INFO] [stdout]   --> src/main.rs:78:9
[INFO] [stdout]    |
[INFO] [stdout] 78 |     let mut current_vertex: u32 = 0;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_current_vertex`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `d`, `p`, and `cost_matrix` are never read
[INFO] [stdout]  --> src/main.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | struct Instance {
[INFO] [stdout]   |        -------- fields in this struct
[INFO] [stdout] 7 |     d: usize,
[INFO] [stdout]   |     ^
[INFO] [stdout] 8 |     p: usize,
[INFO] [stdout]   |     ^
[INFO] [stdout] 9 |     cost_matrix: Vec<Vec<i32>>,
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Instance` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `nearest_neighbor` is never used
[INFO] [stdout]   --> src/main.rs:70:4
[INFO] [stdout]    |
[INFO] [stdout] 70 | fn nearest_neighbor(instance: &Instance) {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this boolean expression can be simplified
[INFO] [stdout]   --> src/main.rs:25:12
[INFO] [stdout]    |
[INFO] [stdout] 25 |         if !lines.find("DIMENSION").is_none() {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `lines.find("DIMENSION").is_some()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#nonminimal_bool
[INFO] [stdout]    = note: `#[warn(clippy::nonminimal_bool)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this boolean expression can be simplified
[INFO] [stdout]   --> src/main.rs:31:12
[INFO] [stdout]    |
[INFO] [stdout] 31 |         if !lines.find("P").is_none() {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `lines.find("P").is_some()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#nonminimal_bool
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this boolean expression can be simplified
[INFO] [stdout]   --> src/main.rs:36:12
[INFO] [stdout]    |
[INFO] [stdout] 36 |         if !lines.find("COST").is_none() {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `lines.find("COST").is_some()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#nonminimal_bool
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: found call to `str::trim` before `str::split_whitespace`
[INFO] [stdout]   --> src/main.rs:26:42
[INFO] [stdout]    |
[INFO] [stdout] 26 |             let split: Vec<&str> = lines.trim().split_whitespace().collect();
[INFO] [stdout]    |                                          ^^^^^^^ help: remove `trim()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#trim_split_whitespace
[INFO] [stdout]    = note: `#[warn(clippy::trim_split_whitespace)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: found call to `str::trim` before `str::split_whitespace`
[INFO] [stdout]   --> src/main.rs:32:42
[INFO] [stdout]    |
[INFO] [stdout] 32 |             let split: Vec<&str> = lines.trim().split_whitespace().collect();
[INFO] [stdout]    |                                          ^^^^^^^ help: remove `trim()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#trim_split_whitespace
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: found call to `str::trim` before `str::split_whitespace`
[INFO] [stdout]   --> src/main.rs:47:56
[INFO] [stdout]    |
[INFO] [stdout] 47 |             let mut vector: Vec<Vec<i32>> = vec![lines.trim().split_whitespace().map(|l| l.parse().unwrap()).collect()];
[INFO] [stdout]    |                                                        ^^^^^^^ help: remove `trim()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#trim_split_whitespace
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.18s
[INFO] running `Command { std: "docker" "inspect" "a4b1bc09ee42e2359c788172b062f8ec59fcd80b593a236008e889ae95916476", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a4b1bc09ee42e2359c788172b062f8ec59fcd80b593a236008e889ae95916476", kill_on_drop: false }`
[INFO] [stdout] a4b1bc09ee42e2359c788172b062f8ec59fcd80b593a236008e889ae95916476