[INFO] fetching crate box2d 0.0.2...
[INFO] checking box2d-0.0.2 against master#b0696a5160711c068cb1f01b7437db7990d15750 for pr-121848
[INFO] extracting crate box2d 0.0.2 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate box2d 0.0.2 on toolchain b0696a5160711c068cb1f01b7437db7990d15750
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b0696a5160711c068cb1f01b7437db7990d15750" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate box2d 0.0.2
[INFO] finished tweaking crates.io crate box2d 0.0.2
[INFO] tweaked toml for crates.io crate box2d 0.0.2 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b0696a5160711c068cb1f01b7437db7990d15750" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b0696a5160711c068cb1f01b7437db7990d15750" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+b0696a5160711c068cb1f01b7437db7990d15750" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 533c275ad2fe6e230e7d82c5799c902f7e4ba4923977474b3715145d90412d66
[INFO] running `Command { std: "docker" "start" "-a" "533c275ad2fe6e230e7d82c5799c902f7e4ba4923977474b3715145d90412d66", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "533c275ad2fe6e230e7d82c5799c902f7e4ba4923977474b3715145d90412d66", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "533c275ad2fe6e230e7d82c5799c902f7e4ba4923977474b3715145d90412d66", kill_on_drop: false }`
[INFO] [stdout] 533c275ad2fe6e230e7d82c5799c902f7e4ba4923977474b3715145d90412d66
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+b0696a5160711c068cb1f01b7437db7990d15750" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fefb2a4a203b84a34ae709bf0f119474ffdc62da2ec263b2358d55344f639311
[INFO] running `Command { std: "docker" "start" "-a" "fefb2a4a203b84a34ae709bf0f119474ffdc62da2ec263b2358d55344f639311", kill_on_drop: false }`
[INFO] [stderr]     Checking box2d v0.0.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around method argument
[INFO] [stdout]   --> src/collision/circle_line_collider.rs:49:68
[INFO] [stdout]    |
[INFO] [stdout] 49 |                     let offset = distance_vector.normal().multiply((radius - distance_vector.length()));
[INFO] [stdout]    |                                                                    ^                                 ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 49 -                     let offset = distance_vector.normal().multiply((radius - distance_vector.length()));
[INFO] [stdout] 49 +                     let offset = distance_vector.normal().multiply(radius - distance_vector.length());
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around method argument
[INFO] [stdout]   --> src/collision/circle_chain_line_collider.rs:57:74
[INFO] [stdout]    |
[INFO] [stdout] 57 |                     let offset = closest_line_distance.normal().multiply((radius - closest_line_distance.length()));
[INFO] [stdout]    |                                                                          ^                                       ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 57 -                     let offset = closest_line_distance.normal().multiply((radius - closest_line_distance.length()));
[INFO] [stdout] 57 +                     let offset = closest_line_distance.normal().multiply(radius - closest_line_distance.length());
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::super::math::Vec2`
[INFO] [stdout]  --> src/collision/polygon_polygon_collider.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use super::super::math::Vec2;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::super::manifold::Manifold`
[INFO] [stdout]  --> src/collision/polygon_polygon_collider.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use super::super::manifold::Manifold;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/world.rs:13:19
[INFO] [stdout]    |
[INFO] [stdout] 13 |     broad_phase: Box<BroadPhase>,
[INFO] [stdout]    |                      ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 13 |     broad_phase: Box<dyn BroadPhase>,
[INFO] [stdout]    |                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/world.rs:14:20
[INFO] [stdout]    |
[INFO] [stdout] 14 |     narrow_phase: Box<NarrowPhase>,
[INFO] [stdout]    |                       ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 14 |     narrow_phase: Box<dyn NarrowPhase>,
[INFO] [stdout]    |                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around method argument
[INFO] [stdout]   --> src/collision/circle_line_collider.rs:49:68
[INFO] [stdout]    |
[INFO] [stdout] 49 |                     let offset = distance_vector.normal().multiply((radius - distance_vector.length()));
[INFO] [stdout]    |                                                                    ^                                 ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 49 -                     let offset = distance_vector.normal().multiply((radius - distance_vector.length()));
[INFO] [stdout] 49 +                     let offset = distance_vector.normal().multiply(radius - distance_vector.length());
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around method argument
[INFO] [stdout]   --> src/collision/circle_chain_line_collider.rs:57:74
[INFO] [stdout]    |
[INFO] [stdout] 57 |                     let offset = closest_line_distance.normal().multiply((radius - closest_line_distance.length()));
[INFO] [stdout]    |                                                                          ^                                       ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 57 -                     let offset = closest_line_distance.normal().multiply((radius - closest_line_distance.length()));
[INFO] [stdout] 57 +                     let offset = closest_line_distance.normal().multiply(radius - closest_line_distance.length());
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::super::math::Vec2`
[INFO] [stdout]  --> src/collision/polygon_polygon_collider.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use super::super::math::Vec2;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::super::manifold::Manifold`
[INFO] [stdout]  --> src/collision/polygon_polygon_collider.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use super::super::manifold::Manifold;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/world.rs:13:19
[INFO] [stdout]    |
[INFO] [stdout] 13 |     broad_phase: Box<BroadPhase>,
[INFO] [stdout]    |                      ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 13 |     broad_phase: Box<dyn BroadPhase>,
[INFO] [stdout]    |                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/world.rs:14:20
[INFO] [stdout]    |
[INFO] [stdout] 14 |     narrow_phase: Box<NarrowPhase>,
[INFO] [stdout]    |                       ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 14 |     narrow_phase: Box<dyn NarrowPhase>,
[INFO] [stdout]    |                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `correction` is never read
[INFO] [stdout]   --> src/world.rs:96:25
[INFO] [stdout]    |
[INFO] [stdout] 96 |                 let mut correction = Vec2::new(0.0, 0.0);
[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/world.rs:65:17
[INFO] [stdout]    |
[INFO] [stdout] 65 |             let mut body_a = manifold.body_a;
[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/world.rs:66:17
[INFO] [stdout]    |
[INFO] [stdout] 66 |             let mut body_b = manifold.body_b;
[INFO] [stdout]    |                 ----^^^^^^
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `closest_point` is never read
[INFO] [stdout]   --> src/collision/circle_line_collider.rs:36:25
[INFO] [stdout]    |
[INFO] [stdout] 36 |                 let mut closest_point = Vec2::new(0.0, 0.0);
[INFO] [stdout]    |                         ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `closest_point` is never read
[INFO] [stdout]   --> src/collision/circle_chain_line_collider.rs:39:29
[INFO] [stdout]    |
[INFO] [stdout] 39 |                     let mut closest_point = Vec2::new(0.0, 0.0);
[INFO] [stdout]    |                             ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `points_a`
[INFO] [stdout]   --> src/collision/polygon_polygon_collider.rs:26:35
[INFO] [stdout]    |
[INFO] [stdout] 26 |             (PolygonShape{points: points_a}, PolygonShape{points: points_b}) => {
[INFO] [stdout]    |                                   ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_points_a`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `points_b`
[INFO] [stdout]   --> src/collision/polygon_polygon_collider.rs:26:67
[INFO] [stdout]    |
[INFO] [stdout] 26 |             (PolygonShape{points: points_a}, PolygonShape{points: points_b}) => {
[INFO] [stdout]    |                                                                   ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_points_b`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `correction` is never read
[INFO] [stdout]   --> src/world.rs:96:25
[INFO] [stdout]    |
[INFO] [stdout] 96 |                 let mut correction = Vec2::new(0.0, 0.0);
[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: value assigned to `correction` is never read
[INFO] [stdout]   --> src/default_collision_resolution.rs:42:25
[INFO] [stdout]    |
[INFO] [stdout] 42 |                 let mut correction = Vec2::new(0.0, 0.0);
[INFO] [stdout]    |                         ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/world.rs:65:17
[INFO] [stdout]    |
[INFO] [stdout] 65 |             let mut body_a = manifold.body_a;
[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/world.rs:66:17
[INFO] [stdout]    |
[INFO] [stdout] 66 |             let mut body_b = manifold.body_b;
[INFO] [stdout]    |                 ----^^^^^^
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `gravity` is never read
[INFO] [stdout]   --> src/world.rs:12:2
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub struct World {
[INFO] [stdout]    |            ----- field in this struct
[INFO] [stdout] 12 |     gravity: Vec2,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/default_collision_resolution.rs:64:12
[INFO] [stdout]    |
[INFO] [stdout] 63 | impl DefaultCollisionResolution {
[INFO] [stdout]    | ------------------------------- associated function in this implementation
[INFO] [stdout] 64 |     pub fn new() -> DefaultCollisionResolution {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `timeStep` should have a snake case name
[INFO] [stdout]   --> src/world.rs:36:25
[INFO] [stdout]    |
[INFO] [stdout] 36 |     pub fn step(&mut self, timeStep: f32) {
[INFO] [stdout]    |                            ^^^^^^^^ help: convert the identifier to snake case: `time_step`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `timeStep` should have a snake case name
[INFO] [stdout]   --> src/body.rs:38:30
[INFO] [stdout]    |
[INFO] [stdout] 38 |     pub fn integrate(&mut self, timeStep: f32) {
[INFO] [stdout]    |                                 ^^^^^^^^ help: convert the identifier to snake case: `time_step`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `closest_point` is never read
[INFO] [stdout]   --> src/collision/circle_line_collider.rs:36:25
[INFO] [stdout]    |
[INFO] [stdout] 36 |                 let mut closest_point = Vec2::new(0.0, 0.0);
[INFO] [stdout]    |                         ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `closest_point` is never read
[INFO] [stdout]   --> src/collision/circle_chain_line_collider.rs:39:29
[INFO] [stdout]    |
[INFO] [stdout] 39 |                     let mut closest_point = Vec2::new(0.0, 0.0);
[INFO] [stdout]    |                             ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `points_a`
[INFO] [stdout]   --> src/collision/polygon_polygon_collider.rs:26:35
[INFO] [stdout]    |
[INFO] [stdout] 26 |             (PolygonShape{points: points_a}, PolygonShape{points: points_b}) => {
[INFO] [stdout]    |                                   ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_points_a`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `points_b`
[INFO] [stdout]   --> src/collision/polygon_polygon_collider.rs:26:67
[INFO] [stdout]    |
[INFO] [stdout] 26 |             (PolygonShape{points: points_a}, PolygonShape{points: points_b}) => {
[INFO] [stdout]    |                                                                   ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_points_b`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 18 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `correction` is never read
[INFO] [stdout]   --> src/default_collision_resolution.rs:42:25
[INFO] [stdout]    |
[INFO] [stdout] 42 |                 let mut correction = Vec2::new(0.0, 0.0);
[INFO] [stdout]    |                         ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `gravity` is never read
[INFO] [stdout]   --> src/world.rs:12:2
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub struct World {
[INFO] [stdout]    |            ----- field in this struct
[INFO] [stdout] 12 |     gravity: Vec2,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/default_collision_resolution.rs:64:12
[INFO] [stdout]    |
[INFO] [stdout] 63 | impl DefaultCollisionResolution {
[INFO] [stdout]    | ------------------------------- associated function in this implementation
[INFO] [stdout] 64 |     pub fn new() -> DefaultCollisionResolution {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `timeStep` should have a snake case name
[INFO] [stdout]   --> src/world.rs:36:25
[INFO] [stdout]    |
[INFO] [stdout] 36 |     pub fn step(&mut self, timeStep: f32) {
[INFO] [stdout]    |                            ^^^^^^^^ help: convert the identifier to snake case: `time_step`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `timeStep` should have a snake case name
[INFO] [stdout]   --> src/body.rs:38:30
[INFO] [stdout]    |
[INFO] [stdout] 38 |     pub fn integrate(&mut self, timeStep: f32) {
[INFO] [stdout]    |                                 ^^^^^^^^ help: convert the identifier to snake case: `time_step`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 18 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.08s
[INFO] running `Command { std: "docker" "inspect" "fefb2a4a203b84a34ae709bf0f119474ffdc62da2ec263b2358d55344f639311", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fefb2a4a203b84a34ae709bf0f119474ffdc62da2ec263b2358d55344f639311", kill_on_drop: false }`
[INFO] [stdout] fefb2a4a203b84a34ae709bf0f119474ffdc62da2ec263b2358d55344f639311
