[INFO] cloning repository https://github.com/sjsilves/island-count-iterate-collect [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sjsilves/island-count-iterate-collect" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsjsilves%2Fisland-count-iterate-collect", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsjsilves%2Fisland-count-iterate-collect'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 7473101d1bfccd520720f23d265044be93e6edca [INFO] checking sjsilves/island-count-iterate-collect against master#c43786c9b7b8d8dcc3f9c604e0e3074c16ed69d3 for pr-141352 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsjsilves%2Fisland-count-iterate-collect" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/sjsilves/island-count-iterate-collect on toolchain c43786c9b7b8d8dcc3f9c604e0e3074c16ed69d3 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c43786c9b7b8d8dcc3f9c604e0e3074c16ed69d3" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/sjsilves/island-count-iterate-collect [INFO] finished tweaking git repo https://github.com/sjsilves/island-count-iterate-collect [INFO] tweaked toml for git repo https://github.com/sjsilves/island-count-iterate-collect written to /workspace/builds/worker-4-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/sjsilves/island-count-iterate-collect 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" "+c43786c9b7b8d8dcc3f9c604e0e3074c16ed69d3" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+c43786c9b7b8d8dcc3f9c604e0e3074c16ed69d3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 374d28219c9fe728ce25f267ebb91afdccfa0fb93a8da128d25b938f7b983041 [INFO] running `Command { std: "docker" "start" "-a" "374d28219c9fe728ce25f267ebb91afdccfa0fb93a8da128d25b938f7b983041", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "374d28219c9fe728ce25f267ebb91afdccfa0fb93a8da128d25b938f7b983041", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "374d28219c9fe728ce25f267ebb91afdccfa0fb93a8da128d25b938f7b983041", kill_on_drop: false }` [INFO] [stdout] 374d28219c9fe728ce25f267ebb91afdccfa0fb93a8da128d25b938f7b983041 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+c43786c9b7b8d8dcc3f9c604e0e3074c16ed69d3" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] b6c9fe29e5e1ed64475fe1701dcd1623cb77b0ba5aa8ed4ea47645a52e4bc77a [INFO] running `Command { std: "docker" "start" "-a" "b6c9fe29e5e1ed64475fe1701dcd1623cb77b0ba5aa8ed4ea47645a52e4bc77a", kill_on_drop: false }` [INFO] [stderr] Compiling autocfg v0.1.4 [INFO] [stderr] Checking rand_core v0.4.0 [INFO] [stderr] Compiling libc v0.2.55 [INFO] [stderr] Compiling arrayvec v0.4.10 [INFO] [stderr] Compiling proc-macro2 v0.4.30 [INFO] [stderr] Checking cfg-if v0.1.9 [INFO] [stderr] Checking nodrop v0.1.13 [INFO] [stderr] Compiling rayon-core v1.4.1 [INFO] [stderr] Checking crossbeam-utils v0.2.2 [INFO] [stderr] Checking lazy_static v1.3.0 [INFO] [stderr] Compiling unicode-xid v0.1.0 [INFO] [stderr] Checking rand_core v0.3.1 [INFO] [stderr] Checking scopeguard v0.3.3 [INFO] [stderr] Checking memoffset v0.2.1 [INFO] [stderr] Compiling ryu v0.2.8 [INFO] [stderr] Compiling serde v1.0.91 [INFO] [stderr] Compiling syn v0.15.34 [INFO] [stderr] Compiling rayon v1.0.3 [INFO] [stderr] Compiling rand_pcg v0.1.2 [INFO] [stderr] Checking crossbeam-epoch v0.3.1 [INFO] [stderr] Compiling rand_chacha v0.1.1 [INFO] [stderr] Compiling rand v0.6.5 [INFO] [stderr] Checking crossbeam-deque v0.2.0 [INFO] [stderr] Checking rand_hc v0.1.0 [INFO] [stderr] Checking rand_isaac v0.1.1 [INFO] [stderr] Checking rand_xorshift v0.1.1 [INFO] [stderr] Checking rand_jitter v0.1.4 [INFO] [stderr] Checking itoa v0.4.4 [INFO] [stderr] Checking either v1.5.2 [INFO] [stderr] Checking num_cpus v1.10.0 [INFO] [stderr] Checking rand_os v0.1.3 [INFO] [stderr] Compiling quote v0.6.12 [INFO] [stderr] Checking serde_json v1.0.39 [INFO] [stderr] Compiling serde_derive v1.0.91 [INFO] [stderr] Checking variables v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unnecessary trailing semicolon [INFO] [stdout] --> src/iterate/tests.rs:34:51 [INFO] [stdout] | [INFO] [stdout] 34 | let islands: HashSet = HashSet::new();; [INFO] [stdout] | ^ help: remove this semicolon [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(redundant_semicolons)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/iterate.rs:32:21 [INFO] [stdout] | [INFO] [stdout] 32 | let mut new_island: Island; [INFO] [stdout] | ----^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `new_island` is assigned to, but never used [INFO] [stdout] --> src/iterate_2.rs:48:25 [INFO] [stdout] | [INFO] [stdout] 48 | let mut new_island: Vec; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: consider using `_new_island` instead [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `new_island` is never read [INFO] [stdout] --> src/iterate_2.rs:51:21 [INFO] [stdout] | [INFO] [stdout] 51 | new_island = merge_islands(found_islands); [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] = note: `#[warn(unused_assignments)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/iterate_2.rs:19:9 [INFO] [stdout] | [INFO] [stdout] 19 | let mut islands: Vec> = Vec::new(); [INFO] [stdout] | ----^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/iterate_2.rs:48:21 [INFO] [stdout] | [INFO] [stdout] 48 | let mut new_island: Vec; [INFO] [stdout] | ----^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `y` [INFO] [stdout] --> src/iterate_2.rs:78:23 [INFO] [stdout] | [INFO] [stdout] 78 | .map(|(j, y)| Point{x:i as i32, y:j as i32}).collect::>())) [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_y` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/iterate_2.rs:104:9 [INFO] [stdout] | [INFO] [stdout] 104 | let mut found_islands: Vec> = Vec::new(); [INFO] [stdout] | ----^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `islands` [INFO] [stdout] --> src/iterate_2.rs:126:19 [INFO] [stdout] | [INFO] [stdout] 126 | fn merge_islands (islands: Vec>) -> Vec { [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_islands` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/iterate_2.rs:129:9 [INFO] [stdout] | [INFO] [stdout] 129 | let mut new_lands: Vec = Vec::new(); [INFO] [stdout] | ----^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `y` [INFO] [stdout] --> src/recurse.rs:44:23 [INFO] [stdout] | [INFO] [stdout] 44 | .map(|(j, y)| Point{x: i as i32, y: j as i32}).collect::>())) [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_y` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `counter` is assigned to, but never used [INFO] [stdout] --> src/recurse.rs:68:13 [INFO] [stdout] | [INFO] [stdout] 68 | let mut counter = 0; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: consider using `_counter` instead [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `lands` [INFO] [stdout] --> src/recurse.rs:64:47 [INFO] [stdout] | [INFO] [stdout] 64 | fn check_adjacent_land (all_land: Vec, lands: HashSet, land: &Point, max_size: &i32) -> HashSet { [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_lands` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `land` [INFO] [stdout] --> src/recurse.rs:94:34 [INFO] [stdout] | [INFO] [stdout] 94 | fn check_bounds (max_size: &i32, land: &Point, test_land: &Point) -> bool { [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_land` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `iterate_b` is never used [INFO] [stdout] --> src/main.rs:32:4 [INFO] [stdout] | [INFO] [stdout] 32 | fn iterate_b(ocean: &[&[bool]], test_num: usize) { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `count_islands` is never used [INFO] [stdout] --> src/iterate_2.rs:11:8 [INFO] [stdout] | [INFO] [stdout] 11 | pub fn count_islands(ocean: &[&[bool]]) -> usize { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `flatten_all_land` is never used [INFO] [stdout] --> src/iterate_2.rs:71:4 [INFO] [stdout] | [INFO] [stdout] 71 | fn flatten_all_land(ocean: &[&[bool]]) -> Vec { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `get_adjacent_land` is never used [INFO] [stdout] --> src/iterate_2.rs:84:4 [INFO] [stdout] | [INFO] [stdout] 84 | fn get_adjacent_land (ocean: &[&[bool]], land: &Point) -> HashSet { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `find_islands` is never used [INFO] [stdout] --> src/iterate_2.rs:103:4 [INFO] [stdout] | [INFO] [stdout] 103 | fn find_islands (islands: Vec>, land: &Point, adjacent_land: HashSet) -> Vec> { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `merge_islands` is never used [INFO] [stdout] --> src/iterate_2.rs:126:4 [INFO] [stdout] | [INFO] [stdout] 126 | fn merge_islands (islands: Vec>) -> Vec { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `remove_islands` is never used [INFO] [stdout] --> src/iterate_2.rs:138:4 [INFO] [stdout] | [INFO] [stdout] 138 | fn remove_islands (islands: &[Island], islands_to_remove: &[Island]) -> Vec { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `find_index_by_island_id` is never used [INFO] [stdout] --> src/iterate_2.rs:149:4 [INFO] [stdout] | [INFO] [stdout] 149 | fn find_index_by_island_id(islands: &[Island], id: usize) -> usize { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `get_next_island_id` is never used [INFO] [stdout] --> src/iterate_2.rs:158:4 [INFO] [stdout] | [INFO] [stdout] 158 | fn get_next_island_id(islands: &[Island]) -> usize { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `validate_ocean` is never used [INFO] [stdout] --> src/iterate_2.rs:175:4 [INFO] [stdout] | [INFO] [stdout] 175 | fn validate_ocean(ocean: &[&[bool]]) -> bool { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/iterate/tests.rs:44:9 [INFO] [stdout] | [INFO] [stdout] 44 | let mut land1: Vec = [Point { x: 1, y: 4 }, Point { x: 2, y: 3 }, Point { x: 0, y: 0 }, Point { x: 0, y: 1 }, Point { x: 1, y:... [INFO] [stdout] | ----^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/iterate/tests.rs:47:9 [INFO] [stdout] | [INFO] [stdout] 47 | let mut land2: Vec = [Point { x: 3, y: 6 }].to_vec(); [INFO] [stdout] | ----^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/iterate/tests.rs:50:9 [INFO] [stdout] | [INFO] [stdout] 50 | let mut land3: Vec = [Point { x: 4, y: 1 }, Point { x: 5, y: 1 }, Point { x: 5, y: 2 }].to_vec(); [INFO] [stdout] | ----^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/iterate/tests.rs:381:9 [INFO] [stdout] | [INFO] [stdout] 381 | let mut new_x: Vec; [INFO] [stdout] | ----^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/iterate.rs:32:21 [INFO] [stdout] | [INFO] [stdout] 32 | let mut new_island: Island; [INFO] [stdout] | ----^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/iterate_2/tests.rs:469:9 [INFO] [stdout] | [INFO] [stdout] 469 | let mut new_x: Vec; [INFO] [stdout] | ----^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `new_island` is assigned to, but never used [INFO] [stdout] --> src/iterate_2.rs:48:25 [INFO] [stdout] | [INFO] [stdout] 48 | let mut new_island: Vec; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: consider using `_new_island` instead [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `new_island` is never read [INFO] [stdout] --> src/iterate_2.rs:51:21 [INFO] [stdout] | [INFO] [stdout] 51 | new_island = merge_islands(found_islands); [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] = note: `#[warn(unused_assignments)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/iterate_2.rs:19:9 [INFO] [stdout] | [INFO] [stdout] 19 | let mut islands: Vec> = Vec::new(); [INFO] [stdout] | ----^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/iterate_2.rs:48:21 [INFO] [stdout] | [INFO] [stdout] 48 | let mut new_island: Vec; [INFO] [stdout] | ----^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `y` [INFO] [stdout] --> src/iterate_2.rs:78:23 [INFO] [stdout] | [INFO] [stdout] 78 | .map(|(j, y)| Point{x:i as i32, y:j as i32}).collect::>())) [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_y` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/iterate_2.rs:104:9 [INFO] [stdout] | [INFO] [stdout] 104 | let mut found_islands: Vec> = Vec::new(); [INFO] [stdout] | ----^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `islands` [INFO] [stdout] --> src/iterate_2.rs:126:19 [INFO] [stdout] | [INFO] [stdout] 126 | fn merge_islands (islands: Vec>) -> Vec { [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_islands` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/iterate_2.rs:129:9 [INFO] [stdout] | [INFO] [stdout] 129 | let mut new_lands: Vec = Vec::new(); [INFO] [stdout] | ----^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/recurse/tests.rs:269:9 [INFO] [stdout] | [INFO] [stdout] 269 | let mut new_x: Vec; [INFO] [stdout] | ----^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `y` [INFO] [stdout] --> src/recurse.rs:44:23 [INFO] [stdout] | [INFO] [stdout] 44 | .map(|(j, y)| Point{x: i as i32, y: j as i32}).collect::>())) [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_y` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `counter` is assigned to, but never used [INFO] [stdout] --> src/recurse.rs:68:13 [INFO] [stdout] | [INFO] [stdout] 68 | let mut counter = 0; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: consider using `_counter` instead [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `lands` [INFO] [stdout] --> src/recurse.rs:64:47 [INFO] [stdout] | [INFO] [stdout] 64 | fn check_adjacent_land (all_land: Vec, lands: HashSet, land: &Point, max_size: &i32) -> HashSet { [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_lands` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `land` [INFO] [stdout] --> src/recurse.rs:94:34 [INFO] [stdout] | [INFO] [stdout] 94 | fn check_bounds (max_size: &i32, land: &Point, test_land: &Point) -> bool { [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_land` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `iterate_b` is never used [INFO] [stdout] --> src/main.rs:32:4 [INFO] [stdout] | [INFO] [stdout] 32 | fn iterate_b(ocean: &[&[bool]], test_num: usize) { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `count_islands` is never used [INFO] [stdout] --> src/iterate_2.rs:11:8 [INFO] [stdout] | [INFO] [stdout] 11 | pub fn count_islands(ocean: &[&[bool]]) -> usize { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `flatten_all_land` is never used [INFO] [stdout] --> src/iterate_2.rs:71:4 [INFO] [stdout] | [INFO] [stdout] 71 | fn flatten_all_land(ocean: &[&[bool]]) -> Vec { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `find_islands` is never used [INFO] [stdout] --> src/iterate_2.rs:103:4 [INFO] [stdout] | [INFO] [stdout] 103 | fn find_islands (islands: Vec>, land: &Point, adjacent_land: HashSet) -> Vec> { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `merge_islands` is never used [INFO] [stdout] --> src/iterate_2.rs:126:4 [INFO] [stdout] | [INFO] [stdout] 126 | fn merge_islands (islands: Vec>) -> Vec { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `remove_islands` is never used [INFO] [stdout] --> src/iterate_2.rs:138:4 [INFO] [stdout] | [INFO] [stdout] 138 | fn remove_islands (islands: &[Island], islands_to_remove: &[Island]) -> Vec { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `find_index_by_island_id` is never used [INFO] [stdout] --> src/iterate_2.rs:149:4 [INFO] [stdout] | [INFO] [stdout] 149 | fn find_index_by_island_id(islands: &[Island], id: usize) -> usize { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `validate_ocean` is never used [INFO] [stdout] --> src/iterate_2.rs:175:4 [INFO] [stdout] | [INFO] [stdout] 175 | fn validate_ocean(ocean: &[&[bool]]) -> bool { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `it_ABC_123` should have a snake case name [INFO] [stdout] --> src/recurse/tests.rs:300:4 [INFO] [stdout] | [INFO] [stdout] 300 | fn it_ABC_123(){ [INFO] [stdout] | ^^^^^^^^^^ help: convert the identifier to snake case: `it_abc_123` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_snake_case)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 19.17s [INFO] running `Command { std: "docker" "inspect" "b6c9fe29e5e1ed64475fe1701dcd1623cb77b0ba5aa8ed4ea47645a52e4bc77a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b6c9fe29e5e1ed64475fe1701dcd1623cb77b0ba5aa8ed4ea47645a52e4bc77a", kill_on_drop: false }` [INFO] [stdout] b6c9fe29e5e1ed64475fe1701dcd1623cb77b0ba5aa8ed4ea47645a52e4bc77a