[INFO] fetching crate py_pathfinding 0.1.5...
[INFO] checking py_pathfinding-0.1.5 against try#8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8 for pr-82565
[INFO] extracting crate py_pathfinding 0.1.5 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate py_pathfinding 0.1.5 on toolchain 8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate py_pathfinding 0.1.5
[INFO] finished tweaking crates.io crate py_pathfinding 0.1.5
[INFO] tweaked toml for crates.io crate py_pathfinding 0.1.5 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate crates.io crate py_pathfinding 0.1.5 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7c4d6ef984aeb40c305ffaceba4ff4b0f93fb665921705e24cc952ad264d0345
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "7c4d6ef984aeb40c305ffaceba4ff4b0f93fb665921705e24cc952ad264d0345", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7c4d6ef984aeb40c305ffaceba4ff4b0f93fb665921705e24cc952ad264d0345", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7c4d6ef984aeb40c305ffaceba4ff4b0f93fb665921705e24cc952ad264d0345", kill_on_drop: false }`
[INFO] [stdout] 7c4d6ef984aeb40c305ffaceba4ff4b0f93fb665921705e24cc952ad264d0345
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7c0d8f6136ed0aad19e04f39c4b1a61e332e8b64cd977d009047073ed0013dbe
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "7c0d8f6136ed0aad19e04f39c4b1a61e332e8b64cd977d009047073ed0013dbe", kill_on_drop: false }`
[INFO] [stderr]     Checking either v1.5.3
[INFO] [stderr]    Compiling ndarray v0.13.0
[INFO] [stderr]     Checking fnv v1.0.6
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]     Checking itertools v0.8.2
[INFO] [stderr]     Checking py_pathfinding v0.1.5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `target`
[INFO] [stdout]    --> src/algorithms/astar.rs:126:36
[INFO] [stdout]     |
[INFO] [stdout] 126 | fn no_heuristic(_source: &Point2d, target: &Point2d) -> f32 {
[INFO] [stdout]     |                                    ^^^^^^ help: if this is intentional, prefix it with an underscore: `_target`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `target`
[INFO] [stdout]    --> src/algorithms/astar.rs:126:36
[INFO] [stdout]     |
[INFO] [stdout] 126 | fn no_heuristic(_source: &Point2d, target: &Point2d) -> f32 {
[INFO] [stdout]     |                                    ^^^^^^ help: if this is intentional, prefix it with an underscore: `_target`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `add_neighbor`
[INFO] [stdout]   --> src/algorithms/astar.rs:37:8
[INFO] [stdout]    |
[INFO] [stdout] 37 |     fn add_neighbor(&self, other: (i32, i32)) -> Point2d {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `distance`
[INFO] [stdout]   --> src/algorithms/astar.rs:46:8
[INFO] [stdout]    |
[INFO] [stdout] 46 |     fn distance(&self, other: &Self) -> u32 {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `successors`
[INFO] [stdout]   --> src/algorithms/astar.rs:50:8
[INFO] [stdout]    |
[INFO] [stdout] 50 |     fn successors(&self) -> Vec<(Point2d, u32)> {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `manhattan_heuristic`
[INFO] [stdout]    --> src/algorithms/astar.rs:104:4
[INFO] [stdout]     |
[INFO] [stdout] 104 | fn manhattan_heuristic(source: &Point2d, target: &Point2d) -> f32 {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static is never used: `SQRT_2_MINUS_2`
[INFO] [stdout]    --> src/algorithms/astar.rs:108:1
[INFO] [stdout]     |
[INFO] [stdout] 108 | static SQRT_2_MINUS_2: f32 = SQRT_2 - 2.0;
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `octal_heuristic`
[INFO] [stdout]    --> src/algorithms/astar.rs:110:4
[INFO] [stdout]     |
[INFO] [stdout] 110 | fn octal_heuristic(source: &Point2d, target: &Point2d) -> f32 {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `euclidean_heuristic`
[INFO] [stdout]    --> src/algorithms/astar.rs:117:4
[INFO] [stdout]     |
[INFO] [stdout] 117 | fn euclidean_heuristic(source: &Point2d, target: &Point2d) -> f32 {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `no_heuristic`
[INFO] [stdout]    --> src/algorithms/astar.rs:126:4
[INFO] [stdout]     |
[INFO] [stdout] 126 | fn no_heuristic(_source: &Point2d, target: &Point2d) -> f32 {
[INFO] [stdout]     |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `construct_path`
[INFO] [stdout]    --> src/algorithms/astar.rs:130:4
[INFO] [stdout]     |
[INFO] [stdout] 130 | fn construct_path(
[INFO] [stdout]     |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `PathFinder`
[INFO] [stdout]    --> src/algorithms/astar.rs:149:8
[INFO] [stdout]     |
[INFO] [stdout] 149 | struct PathFinder {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `update_grid`
[INFO] [stdout]    --> src/algorithms/astar.rs:158:8
[INFO] [stdout]     |
[INFO] [stdout] 158 |     fn update_grid(&mut self, grid: Array2<u8>) {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `find_path`
[INFO] [stdout]    --> src/algorithms/astar.rs:162:8
[INFO] [stdout]     |
[INFO] [stdout] 162 |     fn find_path(&self, source: &Point2d, target: &Point2d) -> Option<Vec<Point2d>> {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new_point_in_grid`
[INFO] [stdout]    --> src/algorithms/jps.rs:285:8
[INFO] [stdout]     |
[INFO] [stdout] 285 |     fn new_point_in_grid(&self, point: &Point2d, direction: Direction) -> Option<Point2d> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `distance`
[INFO] [stdout]   --> src/algorithms/astar.rs:46:8
[INFO] [stdout]    |
[INFO] [stdout] 46 |     fn distance(&self, other: &Self) -> u32 {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `successors`
[INFO] [stdout]   --> src/algorithms/astar.rs:50:8
[INFO] [stdout]    |
[INFO] [stdout] 50 |     fn successors(&self) -> Vec<(Point2d, u32)> {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `grid`
[INFO] [stdout]    --> src/algorithms/astar.rs:152:5
[INFO] [stdout]     |
[INFO] [stdout] 152 |     grid: Array2<u8>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `came_from_grid`
[INFO] [stdout]    --> src/algorithms/astar.rs:153:5
[INFO] [stdout]     |
[INFO] [stdout] 153 |     came_from_grid: Array2<u8>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `update_grid`
[INFO] [stdout]    --> src/algorithms/astar.rs:158:8
[INFO] [stdout]     |
[INFO] [stdout] 158 |     fn update_grid(&mut self, grid: Array2<u8>) {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new_point_in_grid`
[INFO] [stdout]    --> src/algorithms/jps.rs:285:8
[INFO] [stdout]     |
[INFO] [stdout] 285 |     fn new_point_in_grid(&self, point: &Point2d, direction: Direction) -> Option<Point2d> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 14 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `target`
[INFO] [stdout]    --> src/algorithms/astar.rs:126:36
[INFO] [stdout]     |
[INFO] [stdout] 126 | fn no_heuristic(_source: &Point2d, target: &Point2d) -> f32 {
[INFO] [stdout]     |                                    ^^^^^^ help: if this is intentional, prefix it with an underscore: `_target`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `distance`
[INFO] [stdout]   --> src/algorithms/astar.rs:46:8
[INFO] [stdout]    |
[INFO] [stdout] 46 |     fn distance(&self, other: &Self) -> u32 {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `successors`
[INFO] [stdout]   --> src/algorithms/astar.rs:50:8
[INFO] [stdout]    |
[INFO] [stdout] 50 |     fn successors(&self) -> Vec<(Point2d, u32)> {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `grid`
[INFO] [stdout]    --> src/algorithms/astar.rs:152:5
[INFO] [stdout]     |
[INFO] [stdout] 152 |     grid: Array2<u8>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `came_from_grid`
[INFO] [stdout]    --> src/algorithms/astar.rs:153:5
[INFO] [stdout]     |
[INFO] [stdout] 153 |     came_from_grid: Array2<u8>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `update_grid`
[INFO] [stdout]    --> src/algorithms/astar.rs:158:8
[INFO] [stdout]     |
[INFO] [stdout] 158 |     fn update_grid(&mut self, grid: Array2<u8>) {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new_point_in_grid`
[INFO] [stdout]    --> src/algorithms/jps.rs:285:8
[INFO] [stdout]     |
[INFO] [stdout] 285 |     fn new_point_in_grid(&self, point: &Point2d, direction: Direction) -> Option<Point2d> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `target`
[INFO] [stdout]    --> src/algorithms/astar.rs:126:36
[INFO] [stdout]     |
[INFO] [stdout] 126 | fn no_heuristic(_source: &Point2d, target: &Point2d) -> f32 {
[INFO] [stdout]     |                                    ^^^^^^ help: if this is intentional, prefix it with an underscore: `_target`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:16:9
[INFO] [stdout]    |
[INFO] [stdout] 16 |         file.write_fmt(format_args!("{},{}\n", x, y));
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `add_neighbor`
[INFO] [stdout]   --> src/algorithms/astar.rs:37:8
[INFO] [stdout]    |
[INFO] [stdout] 37 |     fn add_neighbor(&self, other: (i32, i32)) -> Point2d {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `distance`
[INFO] [stdout]   --> src/algorithms/astar.rs:46:8
[INFO] [stdout]    |
[INFO] [stdout] 46 |     fn distance(&self, other: &Self) -> u32 {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `successors`
[INFO] [stdout]   --> src/algorithms/astar.rs:50:8
[INFO] [stdout]    |
[INFO] [stdout] 50 |     fn successors(&self) -> Vec<(Point2d, u32)> {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `manhattan_heuristic`
[INFO] [stdout]    --> src/algorithms/astar.rs:104:4
[INFO] [stdout]     |
[INFO] [stdout] 104 | fn manhattan_heuristic(source: &Point2d, target: &Point2d) -> f32 {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static is never used: `SQRT_2_MINUS_2`
[INFO] [stdout]    --> src/algorithms/astar.rs:108:1
[INFO] [stdout]     |
[INFO] [stdout] 108 | static SQRT_2_MINUS_2: f32 = SQRT_2 - 2.0;
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `octal_heuristic`
[INFO] [stdout]    --> src/algorithms/astar.rs:110:4
[INFO] [stdout]     |
[INFO] [stdout] 110 | fn octal_heuristic(source: &Point2d, target: &Point2d) -> f32 {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `euclidean_heuristic`
[INFO] [stdout]    --> src/algorithms/astar.rs:117:4
[INFO] [stdout]     |
[INFO] [stdout] 117 | fn euclidean_heuristic(source: &Point2d, target: &Point2d) -> f32 {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `no_heuristic`
[INFO] [stdout]    --> src/algorithms/astar.rs:126:4
[INFO] [stdout]     |
[INFO] [stdout] 126 | fn no_heuristic(_source: &Point2d, target: &Point2d) -> f32 {
[INFO] [stdout]     |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `construct_path`
[INFO] [stdout]    --> src/algorithms/astar.rs:130:4
[INFO] [stdout]     |
[INFO] [stdout] 130 | fn construct_path(
[INFO] [stdout]     |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `PathFinder`
[INFO] [stdout]    --> src/algorithms/astar.rs:149:8
[INFO] [stdout]     |
[INFO] [stdout] 149 | struct PathFinder {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `update_grid`
[INFO] [stdout]    --> src/algorithms/astar.rs:158:8
[INFO] [stdout]     |
[INFO] [stdout] 158 |     fn update_grid(&mut self, grid: Array2<u8>) {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `find_path`
[INFO] [stdout]    --> src/algorithms/astar.rs:162:8
[INFO] [stdout]     |
[INFO] [stdout] 162 |     fn find_path(&self, source: &Point2d, target: &Point2d) -> Option<Vec<Point2d>> {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new_point_in_grid`
[INFO] [stdout]    --> src/algorithms/jps.rs:285:8
[INFO] [stdout]     |
[INFO] [stdout] 285 |     fn new_point_in_grid(&self, point: &Point2d, direction: Direction) -> Option<Point2d> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:16:9
[INFO] [stdout]    |
[INFO] [stdout] 16 |         file.write_fmt(format_args!("{},{}\n", x, y));
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 15 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.53s
[INFO] running `Command { std: "docker" "inspect" "7c0d8f6136ed0aad19e04f39c4b1a61e332e8b64cd977d009047073ed0013dbe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7c0d8f6136ed0aad19e04f39c4b1a61e332e8b64cd977d009047073ed0013dbe", kill_on_drop: false }`
[INFO] [stdout] 7c0d8f6136ed0aad19e04f39c4b1a61e332e8b64cd977d009047073ed0013dbe