[INFO] crate physics2d 0.5.0 is already in cache
[INFO] extracting crate physics2d 0.5.0 into work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/reg/physics2d/0.5.0
[INFO] extracting crate physics2d 0.5.0 into work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/reg/physics2d/0.5.0
[INFO] validating manifest of physics2d-0.5.0 on toolchain master#60960a260f7b5c695fd0717311d72ce62dd4eb43
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of physics2d-0.5.0 on toolchain try#266783e4e09e4e9d5307c1c8e695659c58bbcac7
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing physics2d-0.5.0
[INFO] finished frobbing physics2d-0.5.0
[INFO] frobbed toml for physics2d-0.5.0 written to work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/reg/physics2d/0.5.0/Cargo.toml
[INFO] started frobbing physics2d-0.5.0
[INFO] finished frobbing physics2d-0.5.0
[INFO] frobbed toml for physics2d-0.5.0 written to work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/reg/physics2d/0.5.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking physics2d-0.5.0 against try#266783e4e09e4e9d5307c1c8e695659c58bbcac7 for pr-63376
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63376/worker-6/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/reg/physics2d/0.5.0:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 5cf22aed1f565a43900a14d5fe34b90c3371f84871b40967d78325ffade601b5
[INFO] running `"docker" "start" "-a" "5cf22aed1f565a43900a14d5fe34b90c3371f84871b40967d78325ffade601b5"`
[INFO] [stderr]     Checking physics2d v0.5.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused macro definition
[INFO] [stderr]   --> src/util/mod.rs:3:1
[INFO] [stderr]    |
[INFO] [stderr] 3  | / macro_rules! match_owned_fn_to_variants {
[INFO] [stderr] 4  | |     ($enum_name:ident::{$($variant:ident),*}; $val:expr, $fn_name:ident$args:tt) => {
[INFO] [stderr] 5  | |         match $val {
[INFO] [stderr] 6  | |             $(
[INFO] [stderr] ...  |
[INFO] [stderr] 10 | |     };
[INFO] [stderr] 11 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_macros)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused macro definition
[INFO] [stderr]   --> src/util/mod.rs:33:1
[INFO] [stderr]    |
[INFO] [stderr] 33 | / macro_rules! generate_match_owned_fn_macro_for_enum {
[INFO] [stderr] 34 | |     ($enum_name:ident::{$($variant:ident),*}; $macro_name:ident) => {
[INFO] [stderr] 35 | |         macro_rules! $macro_name {
[INFO] [stderr] 36 | |             ($val:expr, $fn_name:ident$args:tt) => {
[INFO] [stderr] ...  |
[INFO] [stderr] 40 | |     };
[INFO] [stderr] 41 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `BodyPair`
[INFO] [stderr]  --> src/collision/broad_phase/mod.rs:7:38
[INFO] [stderr]   |
[INFO] [stderr] 7 | use world::{BodyMap, ConstraintsMap, BodyPair, Body};
[INFO] [stderr]   |                                      ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `collision::Contact`
[INFO] [stderr]  --> src/world/collections.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use collision::Contact;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::cell::RefCell`
[INFO] [stderr]   --> src/world/body/mod.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 | use std::cell::RefCell;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Vec2`
[INFO] [stderr]  --> src/world/debug.rs:2:14
[INFO] [stderr]   |
[INFO] [stderr] 2 | use ::math::{Vec2};
[INFO] [stderr]   |              ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `NaiveBroadPhase`
[INFO] [stderr]   --> src/world/mod.rs:13:42
[INFO] [stderr]    |
[INFO] [stderr] 13 | use collision::broad_phase::{BroadPhase, NaiveBroadPhase, BoundsTreeBroadPhase};
[INFO] [stderr]    |                                          ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused macro definition
[INFO] [stderr]   --> src/util/mod.rs:3:1
[INFO] [stderr]    |
[INFO] [stderr] 3  | / macro_rules! match_owned_fn_to_variants {
[INFO] [stderr] 4  | |     ($enum_name:ident::{$($variant:ident),*}; $val:expr, $fn_name:ident$args:tt) => {
[INFO] [stderr] 5  | |         match $val {
[INFO] [stderr] 6  | |             $(
[INFO] [stderr] ...  |
[INFO] [stderr] 10 | |     };
[INFO] [stderr] 11 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_macros)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused macro definition
[INFO] [stderr]   --> src/util/mod.rs:33:1
[INFO] [stderr]    |
[INFO] [stderr] 33 | / macro_rules! generate_match_owned_fn_macro_for_enum {
[INFO] [stderr] 34 | |     ($enum_name:ident::{$($variant:ident),*}; $macro_name:ident) => {
[INFO] [stderr] 35 | |         macro_rules! $macro_name {
[INFO] [stderr] 36 | |             ($val:expr, $fn_name:ident$args:tt) => {
[INFO] [stderr] ...  |
[INFO] [stderr] 40 | |     };
[INFO] [stderr] 41 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `BodyPair`
[INFO] [stderr]  --> src/collision/broad_phase/mod.rs:7:38
[INFO] [stderr]   |
[INFO] [stderr] 7 | use world::{BodyMap, ConstraintsMap, BodyPair, Body};
[INFO] [stderr]   |                                      ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `collision::Contact`
[INFO] [stderr]  --> src/world/collections.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use collision::Contact;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::cell::RefCell`
[INFO] [stderr]   --> src/world/body/mod.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 | use std::cell::RefCell;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Vec2`
[INFO] [stderr]  --> src/world/debug.rs:2:14
[INFO] [stderr]   |
[INFO] [stderr] 2 | use ::math::{Vec2};
[INFO] [stderr]   |              ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `NaiveBroadPhase`
[INFO] [stderr]   --> src/world/mod.rs:13:42
[INFO] [stderr]    |
[INFO] [stderr] 13 | use collision::broad_phase::{BroadPhase, NaiveBroadPhase, BoundsTreeBroadPhase};
[INFO] [stderr]    |                                          ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `rel_vel_normal`
[INFO] [stderr]   --> src/collision/solver.rs:71:13
[INFO] [stderr]    |
[INFO] [stderr] 71 |         let rel_vel_normal = contact.normal.dot(&rel_vel);
[INFO] [stderr]    |             ^^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_rel_vel_normal`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `dt`
[INFO] [stderr]   --> src/collision/solver.rs:65:59
[INFO] [stderr]    |
[INFO] [stderr] 65 |     fn initialize_velocity(&mut self, a: &Body, b: &Body, dt: f32) {
[INFO] [stderr]    |                                                           ^^ help: consider prefixing with an underscore: `_dt`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `dt`
[INFO] [stderr]    --> src/collision/solver.rs:102:67
[INFO] [stderr]     |
[INFO] [stderr] 102 |     fn warm_start_velocity(&mut self, a: &mut Body, b: &mut Body, dt: f32) {
[INFO] [stderr]     |                                                                   ^^ help: consider prefixing with an underscore: `_dt`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `a`
[INFO] [stderr]    --> src/collision/solver.rs:113:39
[INFO] [stderr]     |
[INFO] [stderr] 113 |     fn warm_start_position(&mut self, a: &mut Body, b: &mut Body, dt: f32) {}
[INFO] [stderr]     |                                       ^ help: consider prefixing with an underscore: `_a`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `b`
[INFO] [stderr]    --> src/collision/solver.rs:113:53
[INFO] [stderr]     |
[INFO] [stderr] 113 |     fn warm_start_position(&mut self, a: &mut Body, b: &mut Body, dt: f32) {}
[INFO] [stderr]     |                                                     ^ help: consider prefixing with an underscore: `_b`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `dt`
[INFO] [stderr]    --> src/collision/solver.rs:113:67
[INFO] [stderr]     |
[INFO] [stderr] 113 |     fn warm_start_position(&mut self, a: &mut Body, b: &mut Body, dt: f32) {}
[INFO] [stderr]     |                                                                   ^^ help: consider prefixing with an underscore: `_dt`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `dt`
[INFO] [stderr]    --> src/collision/solver.rs:115:62
[INFO] [stderr]     |
[INFO] [stderr] 115 |     fn solve_velocity(&mut self, a: &mut Body, b: &mut Body, dt: f32) {
[INFO] [stderr]     |                                                              ^^ help: consider prefixing with an underscore: `_dt`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `dt`
[INFO] [stderr]    --> src/collision/solver.rs:157:62
[INFO] [stderr]     |
[INFO] [stderr] 157 |     fn solve_position(&mut self, a: &mut Body, b: &mut Body, dt: f32) {
[INFO] [stderr]     |                                                              ^^ help: consider prefixing with an underscore: `_dt`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `constraints`
[INFO] [stderr]   --> src/world/mod.rs:98:52
[INFO] [stderr]    |
[INFO] [stderr] 98 |             self.contact_constraints.retain(|pair, constraints| pair.with(bodies, |a, b| a.bounds.intersects(&b.bounds)));
[INFO] [stderr]    |                                                    ^^^^^^^^^^^ help: consider prefixing with an underscore: `_constraints`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `dt`
[INFO] [stderr]    --> src/joint/spring.rs:111:67
[INFO] [stderr]     |
[INFO] [stderr] 111 |     fn warm_start_velocity(&mut self, a: &mut Body, b: &mut Body, dt: f32) {
[INFO] [stderr]     |                                                                   ^^ help: consider prefixing with an underscore: `_dt`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `a`
[INFO] [stderr]    --> src/joint/spring.rs:118:39
[INFO] [stderr]     |
[INFO] [stderr] 118 |     fn warm_start_position(&mut self, a: &mut Body, b: &mut Body, dt: f32) {}
[INFO] [stderr]     |                                       ^ help: consider prefixing with an underscore: `_a`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `b`
[INFO] [stderr]    --> src/joint/spring.rs:118:53
[INFO] [stderr]     |
[INFO] [stderr] 118 |     fn warm_start_position(&mut self, a: &mut Body, b: &mut Body, dt: f32) {}
[INFO] [stderr]     |                                                     ^ help: consider prefixing with an underscore: `_b`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `dt`
[INFO] [stderr]    --> src/joint/spring.rs:118:67
[INFO] [stderr]     |
[INFO] [stderr] 118 |     fn warm_start_position(&mut self, a: &mut Body, b: &mut Body, dt: f32) {}
[INFO] [stderr]     |                                                                   ^^ help: consider prefixing with an underscore: `_dt`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `a`
[INFO] [stderr]    --> src/joint/spring.rs:137:34
[INFO] [stderr]     |
[INFO] [stderr] 137 |     fn solve_position(&mut self, a: &mut Body, b: &mut Body, dt: f32) {}
[INFO] [stderr]     |                                  ^ help: consider prefixing with an underscore: `_a`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `b`
[INFO] [stderr]    --> src/joint/spring.rs:137:48
[INFO] [stderr]     |
[INFO] [stderr] 137 |     fn solve_position(&mut self, a: &mut Body, b: &mut Body, dt: f32) {}
[INFO] [stderr]     |                                                ^ help: consider prefixing with an underscore: `_b`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `dt`
[INFO] [stderr]    --> src/joint/spring.rs:137:62
[INFO] [stderr]     |
[INFO] [stderr] 137 |     fn solve_position(&mut self, a: &mut Body, b: &mut Body, dt: f32) {}
[INFO] [stderr]     |                                                              ^^ help: consider prefixing with an underscore: `_dt`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/util/pool.rs:25:13
[INFO] [stderr]    |
[INFO] [stderr] 25 |         let mut node_pool = Vec::with_capacity(initial_capacity);
[INFO] [stderr]    |             ----^^^^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `a`
[INFO] [stderr]   --> src/util/pool.rs:99:14
[INFO] [stderr]    |
[INFO] [stderr] 99 |         let (a, b, c) = (pool.allocate(), pool.allocate(), pool.allocate());
[INFO] [stderr]    |              ^ help: consider prefixing with an underscore: `_a`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `c`
[INFO] [stderr]   --> src/util/pool.rs:99:20
[INFO] [stderr]    |
[INFO] [stderr] 99 |         let (a, b, c) = (pool.allocate(), pool.allocate(), pool.allocate());
[INFO] [stderr]    |                    ^ help: consider prefixing with an underscore: `_c`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `rel_vel_normal`
[INFO] [stderr]   --> src/collision/solver.rs:71:13
[INFO] [stderr]    |
[INFO] [stderr] 71 |         let rel_vel_normal = contact.normal.dot(&rel_vel);
[INFO] [stderr]    |             ^^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_rel_vel_normal`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `dt`
[INFO] [stderr]   --> src/collision/solver.rs:65:59
[INFO] [stderr]    |
[INFO] [stderr] 65 |     fn initialize_velocity(&mut self, a: &Body, b: &Body, dt: f32) {
[INFO] [stderr]    |                                                           ^^ help: consider prefixing with an underscore: `_dt`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `dt`
[INFO] [stderr]    --> src/collision/solver.rs:102:67
[INFO] [stderr]     |
[INFO] [stderr] 102 |     fn warm_start_velocity(&mut self, a: &mut Body, b: &mut Body, dt: f32) {
[INFO] [stderr]     |                                                                   ^^ help: consider prefixing with an underscore: `_dt`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `a`
[INFO] [stderr]    --> src/collision/solver.rs:113:39
[INFO] [stderr]     |
[INFO] [stderr] 113 |     fn warm_start_position(&mut self, a: &mut Body, b: &mut Body, dt: f32) {}
[INFO] [stderr]     |                                       ^ help: consider prefixing with an underscore: `_a`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `b`
[INFO] [stderr]    --> src/collision/solver.rs:113:53
[INFO] [stderr]     |
[INFO] [stderr] 113 |     fn warm_start_position(&mut self, a: &mut Body, b: &mut Body, dt: f32) {}
[INFO] [stderr]     |                                                     ^ help: consider prefixing with an underscore: `_b`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `dt`
[INFO] [stderr]    --> src/collision/solver.rs:113:67
[INFO] [stderr]     |
[INFO] [stderr] 113 |     fn warm_start_position(&mut self, a: &mut Body, b: &mut Body, dt: f32) {}
[INFO] [stderr]     |                                                                   ^^ help: consider prefixing with an underscore: `_dt`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `dt`
[INFO] [stderr]    --> src/collision/solver.rs:115:62
[INFO] [stderr]     |
[INFO] [stderr] 115 |     fn solve_velocity(&mut self, a: &mut Body, b: &mut Body, dt: f32) {
[INFO] [stderr]     |                                                              ^^ help: consider prefixing with an underscore: `_dt`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `dt`
[INFO] [stderr]    --> src/collision/solver.rs:157:62
[INFO] [stderr]     |
[INFO] [stderr] 157 |     fn solve_position(&mut self, a: &mut Body, b: &mut Body, dt: f32) {
[INFO] [stderr]     |                                                              ^^ help: consider prefixing with an underscore: `_dt`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `constraints`
[INFO] [stderr]   --> src/world/mod.rs:98:52
[INFO] [stderr]    |
[INFO] [stderr] 98 |             self.contact_constraints.retain(|pair, constraints| pair.with(bodies, |a, b| a.bounds.intersects(&b.bounds)));
[INFO] [stderr]    |                                                    ^^^^^^^^^^^ help: consider prefixing with an underscore: `_constraints`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `dt`
[INFO] [stderr]    --> src/joint/spring.rs:111:67
[INFO] [stderr]     |
[INFO] [stderr] 111 |     fn warm_start_velocity(&mut self, a: &mut Body, b: &mut Body, dt: f32) {
[INFO] [stderr]     |                                                                   ^^ help: consider prefixing with an underscore: `_dt`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `a`
[INFO] [stderr]    --> src/joint/spring.rs:118:39
[INFO] [stderr]     |
[INFO] [stderr] 118 |     fn warm_start_position(&mut self, a: &mut Body, b: &mut Body, dt: f32) {}
[INFO] [stderr]     |                                       ^ help: consider prefixing with an underscore: `_a`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `b`
[INFO] [stderr]    --> src/joint/spring.rs:118:53
[INFO] [stderr]     |
[INFO] [stderr] 118 |     fn warm_start_position(&mut self, a: &mut Body, b: &mut Body, dt: f32) {}
[INFO] [stderr]     |                                                     ^ help: consider prefixing with an underscore: `_b`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `dt`
[INFO] [stderr]    --> src/joint/spring.rs:118:67
[INFO] [stderr]     |
[INFO] [stderr] 118 |     fn warm_start_position(&mut self, a: &mut Body, b: &mut Body, dt: f32) {}
[INFO] [stderr]     |                                                                   ^^ help: consider prefixing with an underscore: `_dt`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `a`
[INFO] [stderr]    --> src/joint/spring.rs:137:34
[INFO] [stderr]     |
[INFO] [stderr] 137 |     fn solve_position(&mut self, a: &mut Body, b: &mut Body, dt: f32) {}
[INFO] [stderr]     |                                  ^ help: consider prefixing with an underscore: `_a`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `b`
[INFO] [stderr]    --> src/joint/spring.rs:137:48
[INFO] [stderr]     |
[INFO] [stderr] 137 |     fn solve_position(&mut self, a: &mut Body, b: &mut Body, dt: f32) {}
[INFO] [stderr]     |                                                ^ help: consider prefixing with an underscore: `_b`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `dt`
[INFO] [stderr]    --> src/joint/spring.rs:137:62
[INFO] [stderr]     |
[INFO] [stderr] 137 |     fn solve_position(&mut self, a: &mut Body, b: &mut Body, dt: f32) {}
[INFO] [stderr]     |                                                              ^^ help: consider prefixing with an underscore: `_dt`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/util/pool.rs:25:13
[INFO] [stderr]    |
[INFO] [stderr] 25 |         let mut node_pool = Vec::with_capacity(initial_capacity);
[INFO] [stderr]    |             ----^^^^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/collision/broad_phase/bounds_tree/mod.rs:74:13
[INFO] [stderr]    |
[INFO] [stderr] 74 |         let mut pool = pool::Pool::default();
[INFO] [stderr]    |             ----^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/collision/broad_phase/bounds_tree/mod.rs:74:13
[INFO] [stderr]    |
[INFO] [stderr] 74 |         let mut pool = pool::Pool::default();
[INFO] [stderr]    |             ----^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `NaiveBroadPhase`
[INFO] [stderr]  --> src/collision/broad_phase/naive.rs:5:1
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub struct NaiveBroadPhase;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_root`
[INFO] [stderr]   --> src/collision/broad_phase/bounds_tree/mod.rs:81:5
[INFO] [stderr]    |
[INFO] [stderr] 81 |     pub fn get_root(&self) -> &Node<T> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_root_mut`
[INFO] [stderr]   --> src/collision/broad_phase/bounds_tree/mod.rs:85:5
[INFO] [stderr]    |
[INFO] [stderr] 85 |     pub fn get_root_mut(&mut self) -> &mut Node<T> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `with_mut`
[INFO] [stderr]   --> src/world/body/pair.rs:34:5
[INFO] [stderr]    |
[INFO] [stderr] 34 | /     pub fn with_mut<F, R>(&self, bodies: &mut BodyMap, mut f: F) -> R
[INFO] [stderr] 35 | |         where F: FnMut(&mut Body, &mut Body) -> R {
[INFO] [stderr] 36 | |         unsafe {
[INFO] [stderr] 37 | |             let body_a = bodies.get_mut(&self.0).unwrap() as *mut _;
[INFO] [stderr] ...  |
[INFO] [stderr] 41 | |         }
[INFO] [stderr] 42 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr] 
[INFO] [stderr] warning: bounds on generic parameters are not enforced in type aliases
[INFO] [stderr]   --> src/world/collections.rs:31:28
[INFO] [stderr]    |
[INFO] [stderr] 31 | pub type ConstraintsMap<T: Constraint> = FnvHashMap<BodyPair, Vec<T>>;
[INFO] [stderr]    |                            ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(type_alias_bounds)]` on by default
[INFO] [stderr]    = help: the bound will not be checked when the type alias is used, and should be removed
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `NaiveBroadPhase`
[INFO] [stderr]  --> src/collision/broad_phase/naive.rs:5:1
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub struct NaiveBroadPhase;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_root_mut`
[INFO] [stderr]   --> src/collision/broad_phase/bounds_tree/mod.rs:85:5
[INFO] [stderr]    |
[INFO] [stderr] 85 |     pub fn get_root_mut(&mut self) -> &mut Node<T> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `with_mut`
[INFO] [stderr]   --> src/world/body/pair.rs:34:5
[INFO] [stderr]    |
[INFO] [stderr] 34 | /     pub fn with_mut<F, R>(&self, bodies: &mut BodyMap, mut f: F) -> R
[INFO] [stderr] 35 | |         where F: FnMut(&mut Body, &mut Body) -> R {
[INFO] [stderr] 36 | |         unsafe {
[INFO] [stderr] 37 | |             let body_a = bodies.get_mut(&self.0).unwrap() as *mut _;
[INFO] [stderr] ...  |
[INFO] [stderr] 41 | |         }
[INFO] [stderr] 42 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr] 
[INFO] [stderr] warning: bounds on generic parameters are not enforced in type aliases
[INFO] [stderr]   --> src/world/collections.rs:31:28
[INFO] [stderr]    |
[INFO] [stderr] 31 | pub type ConstraintsMap<T: Constraint> = FnvHashMap<BodyPair, Vec<T>>;
[INFO] [stderr]    |                            ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(type_alias_bounds)]` on by default
[INFO] [stderr]    = help: the bound will not be checked when the type alias is used, and should be removed
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> examples/testbed/canvas.rs:31:25
[INFO] [stderr]    |
[INFO] [stderr] 31 |     draw_queue: Vec<Box<sfml::graphics::Drawable>>,
[INFO] [stderr]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn sfml::graphics::Drawable`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `input`
[INFO] [stderr]   --> examples/circles.rs:20:29
[INFO] [stderr]    |
[INFO] [stderr] 20 |     fn sfml_loop(&mut self, input: &testbed::Input, dt: f32) {
[INFO] [stderr]    |                             ^^^^^ help: consider prefixing with an underscore: `_input`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `sfml_pos`
[INFO] [stderr]   --> examples/testbed/canvas.rs:63:31
[INFO] [stderr]    |
[INFO] [stderr] 63 |     fn draw_circle(&mut self, sfml_pos: sfml::system::Vector2f,
[INFO] [stderr]    |                               ^^^^^^^^ help: consider prefixing with an underscore: `_sfml_pos`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `sfml_pos`
[INFO] [stderr]   --> examples/testbed/canvas.rs:89:32
[INFO] [stderr]    |
[INFO] [stderr] 89 |     fn draw_polygon(&mut self, sfml_pos: sfml::system::Vector2f,
[INFO] [stderr]    |                                ^^^^^^^^ help: consider prefixing with an underscore: `_sfml_pos`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `alt`
[INFO] [stderr]   --> examples/testbed/input.rs:46:39
[INFO] [stderr]    |
[INFO] [stderr] 46 |             Event::KeyPressed { code, alt, ctrl, shift, system } => {
[INFO] [stderr]    |                                       ^^^ help: try ignoring the field: `alt: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `ctrl`
[INFO] [stderr]   --> examples/testbed/input.rs:46:44
[INFO] [stderr]    |
[INFO] [stderr] 46 |             Event::KeyPressed { code, alt, ctrl, shift, system } => {
[INFO] [stderr]    |                                            ^^^^ help: try ignoring the field: `ctrl: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `shift`
[INFO] [stderr]   --> examples/testbed/input.rs:46:50
[INFO] [stderr]    |
[INFO] [stderr] 46 |             Event::KeyPressed { code, alt, ctrl, shift, system } => {
[INFO] [stderr]    |                                                  ^^^^^ help: try ignoring the field: `shift: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `system`
[INFO] [stderr]   --> examples/testbed/input.rs:46:57
[INFO] [stderr]    |
[INFO] [stderr] 46 |             Event::KeyPressed { code, alt, ctrl, shift, system } => {
[INFO] [stderr]    |                                                         ^^^^^^ help: try ignoring the field: `system: _`
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `config_shape`
[INFO] [stderr]   --> examples/testbed/canvas.rs:53:5
[INFO] [stderr]    |
[INFO] [stderr] 53 |     fn config_shape<'a, T: sfml::graphics::Shape<'a>>(&self, shape: &mut T) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `draw_point`
[INFO] [stderr]    --> examples/testbed/canvas.rs:121:5
[INFO] [stderr]     |
[INFO] [stderr] 121 |     pub fn draw_point(&mut self, point: Vec2) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `WIDTH`
[INFO] [stderr]    --> examples/testbed/canvas.rs:123:9
[INFO] [stderr]     |
[INFO] [stderr] 123 |         const WIDTH: f32 = 2.0;
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `draw_line`
[INFO] [stderr]    --> examples/testbed/canvas.rs:142:5
[INFO] [stderr]     |
[INFO] [stderr] 142 |     pub fn draw_line(&mut self, a: Vec2, b: Vec2) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `draw_text`
[INFO] [stderr]    --> examples/testbed/canvas.rs:158:5
[INFO] [stderr]     |
[INFO] [stderr] 158 |     pub fn draw_text(&mut self, text: String, size: u32) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> examples/testbed/canvas.rs:31:25
[INFO] [stderr]    |
[INFO] [stderr] 31 |     draw_queue: Vec<Box<sfml::graphics::Drawable>>,
[INFO] [stderr]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn sfml::graphics::Drawable`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> examples/testbed/canvas.rs:31:25
[INFO] [stderr]    |
[INFO] [stderr] 31 |     draw_queue: Vec<Box<sfml::graphics::Drawable>>,
[INFO] [stderr]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn sfml::graphics::Drawable`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `input`
[INFO] [stderr]   --> examples/polygons.rs:20:29
[INFO] [stderr]    |
[INFO] [stderr] 20 |     fn sfml_loop(&mut self, input: &testbed::Input, dt: f32) {
[INFO] [stderr]    |                             ^^^^^ help: consider prefixing with an underscore: `_input`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `sfml_pos`
[INFO] [stderr]   --> examples/testbed/canvas.rs:63:31
[INFO] [stderr]    |
[INFO] [stderr] 63 |     fn draw_circle(&mut self, sfml_pos: sfml::system::Vector2f,
[INFO] [stderr]    |                               ^^^^^^^^ help: consider prefixing with an underscore: `_sfml_pos`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `sfml_pos`
[INFO] [stderr]   --> examples/testbed/canvas.rs:89:32
[INFO] [stderr]    |
[INFO] [stderr] 89 |     fn draw_polygon(&mut self, sfml_pos: sfml::system::Vector2f,
[INFO] [stderr]    |                                ^^^^^^^^ help: consider prefixing with an underscore: `_sfml_pos`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `alt`
[INFO] [stderr]   --> examples/testbed/input.rs:46:39
[INFO] [stderr]    |
[INFO] [stderr] 46 |             Event::KeyPressed { code, alt, ctrl, shift, system } => {
[INFO] [stderr]    |                                       ^^^ help: try ignoring the field: `alt: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `ctrl`
[INFO] [stderr]   --> examples/testbed/input.rs:46:44
[INFO] [stderr]    |
[INFO] [stderr] 46 |             Event::KeyPressed { code, alt, ctrl, shift, system } => {
[INFO] [stderr]    |                                            ^^^^ help: try ignoring the field: `ctrl: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `shift`
[INFO] [stderr]   --> examples/testbed/input.rs:46:50
[INFO] [stderr]    |
[INFO] [stderr] 46 |             Event::KeyPressed { code, alt, ctrl, shift, system } => {
[INFO] [stderr]    |                                                  ^^^^^ help: try ignoring the field: `shift: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `system`
[INFO] [stderr]   --> examples/testbed/input.rs:46:57
[INFO] [stderr]    |
[INFO] [stderr] 46 |             Event::KeyPressed { code, alt, ctrl, shift, system } => {
[INFO] [stderr]    |                                                         ^^^^^^ help: try ignoring the field: `system: _`
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `config_shape`
[INFO] [stderr]   --> examples/testbed/canvas.rs:53:5
[INFO] [stderr]    |
[INFO] [stderr] 53 |     fn config_shape<'a, T: sfml::graphics::Shape<'a>>(&self, shape: &mut T) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `draw_point`
[INFO] [stderr]    --> examples/testbed/canvas.rs:121:5
[INFO] [stderr]     |
[INFO] [stderr] 121 |     pub fn draw_point(&mut self, point: Vec2) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `WIDTH`
[INFO] [stderr]    --> examples/testbed/canvas.rs:123:9
[INFO] [stderr]     |
[INFO] [stderr] 123 |         const WIDTH: f32 = 2.0;
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `draw_line`
[INFO] [stderr]    --> examples/testbed/canvas.rs:142:5
[INFO] [stderr]     |
[INFO] [stderr] 142 |     pub fn draw_line(&mut self, a: Vec2, b: Vec2) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `draw_text`
[INFO] [stderr]    --> examples/testbed/canvas.rs:158:5
[INFO] [stderr]     |
[INFO] [stderr] 158 |     pub fn draw_text(&mut self, text: String, size: u32) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `sfml_pos`
[INFO] [stderr]   --> examples/testbed/canvas.rs:63:31
[INFO] [stderr]    |
[INFO] [stderr] 63 |     fn draw_circle(&mut self, sfml_pos: sfml::system::Vector2f,
[INFO] [stderr]    |                               ^^^^^^^^ help: consider prefixing with an underscore: `_sfml_pos`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `sfml_pos`
[INFO] [stderr]   --> examples/testbed/canvas.rs:89:32
[INFO] [stderr]    |
[INFO] [stderr] 89 |     fn draw_polygon(&mut self, sfml_pos: sfml::system::Vector2f,
[INFO] [stderr]    |                                ^^^^^^^^ help: consider prefixing with an underscore: `_sfml_pos`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `alt`
[INFO] [stderr]   --> examples/testbed/input.rs:46:39
[INFO] [stderr]    |
[INFO] [stderr] 46 |             Event::KeyPressed { code, alt, ctrl, shift, system } => {
[INFO] [stderr]    |                                       ^^^ help: try ignoring the field: `alt: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `ctrl`
[INFO] [stderr]   --> examples/testbed/input.rs:46:44
[INFO] [stderr]    |
[INFO] [stderr] 46 |             Event::KeyPressed { code, alt, ctrl, shift, system } => {
[INFO] [stderr]    |                                            ^^^^ help: try ignoring the field: `ctrl: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `shift`
[INFO] [stderr]   --> examples/testbed/input.rs:46:50
[INFO] [stderr]    |
[INFO] [stderr] 46 |             Event::KeyPressed { code, alt, ctrl, shift, system } => {
[INFO] [stderr]    |                                                  ^^^^^ help: try ignoring the field: `shift: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `system`
[INFO] [stderr]   --> examples/testbed/input.rs:46:57
[INFO] [stderr]    |
[INFO] [stderr] 46 |             Event::KeyPressed { code, alt, ctrl, shift, system } => {
[INFO] [stderr]    |                                                         ^^^^^^ help: try ignoring the field: `system: _`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> examples/springs.rs:42:13
[INFO] [stderr]    |
[INFO] [stderr] 42 |         let mut circle_body = Body::new(circle.into_shape(), 10.0, Material::new(0.8, 0.8));
[INFO] [stderr]    |             ----^^^^^^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> examples/springs.rs:135:9
[INFO] [stderr]     |
[INFO] [stderr] 135 |     let mut testbed = SpringsTestbed::new(&config);
[INFO] [stderr]     |         ----^^^^^^^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `config_shape`
[INFO] [stderr]   --> examples/testbed/canvas.rs:53:5
[INFO] [stderr]    |
[INFO] [stderr] 53 |     fn config_shape<'a, T: sfml::graphics::Shape<'a>>(&self, shape: &mut T) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> examples/testbed/canvas.rs:31:25
[INFO] [stderr]    |
[INFO] [stderr] 31 |     draw_queue: Vec<Box<sfml::graphics::Drawable>>,
[INFO] [stderr]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn sfml::graphics::Drawable`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `j`
[INFO] [stderr]   --> examples/stacks.rs:55:17
[INFO] [stderr]    |
[INFO] [stderr] 55 |             for j in i..N {
[INFO] [stderr]    |                 ^ help: consider prefixing with an underscore: `_j`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `sfml_pos`
[INFO] [stderr]   --> examples/testbed/canvas.rs:63:31
[INFO] [stderr]    |
[INFO] [stderr] 63 |     fn draw_circle(&mut self, sfml_pos: sfml::system::Vector2f,
[INFO] [stderr]    |                               ^^^^^^^^ help: consider prefixing with an underscore: `_sfml_pos`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `sfml_pos`
[INFO] [stderr]   --> examples/testbed/canvas.rs:89:32
[INFO] [stderr]    |
[INFO] [stderr] 89 |     fn draw_polygon(&mut self, sfml_pos: sfml::system::Vector2f,
[INFO] [stderr]    |                                ^^^^^^^^ help: consider prefixing with an underscore: `_sfml_pos`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `alt`
[INFO] [stderr]   --> examples/testbed/input.rs:46:39
[INFO] [stderr]    |
[INFO] [stderr] 46 |             Event::KeyPressed { code, alt, ctrl, shift, system } => {
[INFO] [stderr]    |                                       ^^^ help: try ignoring the field: `alt: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `ctrl`
[INFO] [stderr]   --> examples/testbed/input.rs:46:44
[INFO] [stderr]    |
[INFO] [stderr] 46 |             Event::KeyPressed { code, alt, ctrl, shift, system } => {
[INFO] [stderr]    |                                            ^^^^ help: try ignoring the field: `ctrl: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `shift`
[INFO] [stderr]   --> examples/testbed/input.rs:46:50
[INFO] [stderr]    |
[INFO] [stderr] 46 |             Event::KeyPressed { code, alt, ctrl, shift, system } => {
[INFO] [stderr]    |                                                  ^^^^^ help: try ignoring the field: `shift: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `system`
[INFO] [stderr]   --> examples/testbed/input.rs:46:57
[INFO] [stderr]    |
[INFO] [stderr] 46 |             Event::KeyPressed { code, alt, ctrl, shift, system } => {
[INFO] [stderr]    |                                                         ^^^^^^ help: try ignoring the field: `system: _`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> examples/stacks.rs:126:9
[INFO] [stderr]     |
[INFO] [stderr] 126 |     let mut testbed = StacksTestbed::new(&config);
[INFO] [stderr]     |         ----^^^^^^^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> examples/testbed/canvas.rs:31:25
[INFO] [stderr]    |
[INFO] [stderr] 31 |     draw_queue: Vec<Box<sfml::graphics::Drawable>>,
[INFO] [stderr]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn sfml::graphics::Drawable`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `config_shape`
[INFO] [stderr]   --> examples/testbed/canvas.rs:53:5
[INFO] [stderr]    |
[INFO] [stderr] 53 |     fn config_shape<'a, T: sfml::graphics::Shape<'a>>(&self, shape: &mut T) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `input`
[INFO] [stderr]   --> examples/circle_polygon_collisions.rs:46:29
[INFO] [stderr]    |
[INFO] [stderr] 46 |     fn sfml_loop(&mut self, input: &testbed::Input, dt: f32) {
[INFO] [stderr]    |                             ^^^^^ help: consider prefixing with an underscore: `_input`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `dt`
[INFO] [stderr]   --> examples/circle_polygon_collisions.rs:58:59
[INFO] [stderr]    |
[INFO] [stderr] 58 |     fn sfml_draw(&mut self, canvas: &mut testbed::Canvas, dt: f32) {
[INFO] [stderr]    |                                                           ^^ help: consider prefixing with an underscore: `_dt`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `sfml_pos`
[INFO] [stderr]   --> examples/testbed/canvas.rs:63:31
[INFO] [stderr]    |
[INFO] [stderr] 63 |     fn draw_circle(&mut self, sfml_pos: sfml::system::Vector2f,
[INFO] [stderr]    |                               ^^^^^^^^ help: consider prefixing with an underscore: `_sfml_pos`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `sfml_pos`
[INFO] [stderr]   --> examples/testbed/canvas.rs:89:32
[INFO] [stderr]    |
[INFO] [stderr] 89 |     fn draw_polygon(&mut self, sfml_pos: sfml::system::Vector2f,
[INFO] [stderr]    |                                ^^^^^^^^ help: consider prefixing with an underscore: `_sfml_pos`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `alt`
[INFO] [stderr]   --> examples/testbed/input.rs:46:39
[INFO] [stderr]    |
[INFO] [stderr] 46 |             Event::KeyPressed { code, alt, ctrl, shift, system } => {
[INFO] [stderr]    |                                       ^^^ help: try ignoring the field: `alt: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `ctrl`
[INFO] [stderr]   --> examples/testbed/input.rs:46:44
[INFO] [stderr]    |
[INFO] [stderr] 46 |             Event::KeyPressed { code, alt, ctrl, shift, system } => {
[INFO] [stderr]    |                                            ^^^^ help: try ignoring the field: `ctrl: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `shift`
[INFO] [stderr]   --> examples/testbed/input.rs:46:50
[INFO] [stderr]    |
[INFO] [stderr] 46 |             Event::KeyPressed { code, alt, ctrl, shift, system } => {
[INFO] [stderr]    |                                                  ^^^^^ help: try ignoring the field: `shift: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `system`
[INFO] [stderr]   --> examples/testbed/input.rs:46:57
[INFO] [stderr]    |
[INFO] [stderr] 46 |             Event::KeyPressed { code, alt, ctrl, shift, system } => {
[INFO] [stderr]    |                                                         ^^^^^^ help: try ignoring the field: `system: _`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> examples/circle_polygon_collisions.rs:27:13
[INFO] [stderr]    |
[INFO] [stderr] 27 |         let mut b = Body::new(circle.into_shape(), 10.0, Material::new(0.3, 0.3));
[INFO] [stderr]    |             ----^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> examples/testbed/canvas.rs:31:25
[INFO] [stderr]    |
[INFO] [stderr] 31 |     draw_queue: Vec<Box<sfml::graphics::Drawable>>,
[INFO] [stderr]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn sfml::graphics::Drawable`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> examples/circle_polygon_collisions.rs:78:9
[INFO] [stderr]    |
[INFO] [stderr] 78 |     let mut testbed = CirclePolygonCollisionsTestbed::new();
[INFO] [stderr]    |         ----^^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `config_shape`
[INFO] [stderr]   --> examples/testbed/canvas.rs:53:5
[INFO] [stderr]    |
[INFO] [stderr] 53 |     fn config_shape<'a, T: sfml::graphics::Shape<'a>>(&self, shape: &mut T) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `draw_line`
[INFO] [stderr]    --> examples/testbed/canvas.rs:142:5
[INFO] [stderr]     |
[INFO] [stderr] 142 |     pub fn draw_line(&mut self, a: Vec2, b: Vec2) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `draw_text`
[INFO] [stderr]    --> examples/testbed/canvas.rs:158:5
[INFO] [stderr]     |
[INFO] [stderr] 158 |     pub fn draw_text(&mut self, text: String, size: u32) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> examples/testbed/canvas.rs:31:25
[INFO] [stderr]    |
[INFO] [stderr] 31 |     draw_queue: Vec<Box<sfml::graphics::Drawable>>,
[INFO] [stderr]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn sfml::graphics::Drawable`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> examples/testbed/canvas.rs:31:25
[INFO] [stderr]    |
[INFO] [stderr] 31 |     draw_queue: Vec<Box<sfml::graphics::Drawable>>,
[INFO] [stderr]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn sfml::graphics::Drawable`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> examples/testbed/canvas.rs:31:25
[INFO] [stderr]    |
[INFO] [stderr] 31 |     draw_queue: Vec<Box<sfml::graphics::Drawable>>,
[INFO] [stderr]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn sfml::graphics::Drawable`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `sfml_pos`
[INFO] [stderr]   --> examples/testbed/canvas.rs:63:31
[INFO] [stderr]    |
[INFO] [stderr] 63 |     fn draw_circle(&mut self, sfml_pos: sfml::system::Vector2f,
[INFO] [stderr]    |                               ^^^^^^^^ help: consider prefixing with an underscore: `_sfml_pos`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `sfml_pos`
[INFO] [stderr]   --> examples/testbed/canvas.rs:89:32
[INFO] [stderr]    |
[INFO] [stderr] 89 |     fn draw_polygon(&mut self, sfml_pos: sfml::system::Vector2f,
[INFO] [stderr]    |                                ^^^^^^^^ help: consider prefixing with an underscore: `_sfml_pos`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `alt`
[INFO] [stderr]   --> examples/testbed/input.rs:46:39
[INFO] [stderr]    |
[INFO] [stderr] 46 |             Event::KeyPressed { code, alt, ctrl, shift, system } => {
[INFO] [stderr]    |                                       ^^^ help: try ignoring the field: `alt: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `ctrl`
[INFO] [stderr]   --> examples/testbed/input.rs:46:44
[INFO] [stderr]    |
[INFO] [stderr] 46 |             Event::KeyPressed { code, alt, ctrl, shift, system } => {
[INFO] [stderr]    |                                            ^^^^ help: try ignoring the field: `ctrl: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `shift`
[INFO] [stderr]   --> examples/testbed/input.rs:46:50
[INFO] [stderr]    |
[INFO] [stderr] 46 |             Event::KeyPressed { code, alt, ctrl, shift, system } => {
[INFO] [stderr]    |                                                  ^^^^^ help: try ignoring the field: `shift: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `system`
[INFO] [stderr]   --> examples/testbed/input.rs:46:57
[INFO] [stderr]    |
[INFO] [stderr] 46 |             Event::KeyPressed { code, alt, ctrl, shift, system } => {
[INFO] [stderr]    |                                                         ^^^^^^ help: try ignoring the field: `system: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `j`
[INFO] [stderr]   --> examples/pyramid.rs:56:17
[INFO] [stderr]    |
[INFO] [stderr] 56 |             for j in i..N {
[INFO] [stderr]    |                 ^ help: consider prefixing with an underscore: `_j`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `sfml_pos`
[INFO] [stderr]   --> examples/testbed/canvas.rs:63:31
[INFO] [stderr]    |
[INFO] [stderr] 63 |     fn draw_circle(&mut self, sfml_pos: sfml::system::Vector2f,
[INFO] [stderr]    |                               ^^^^^^^^ help: consider prefixing with an underscore: `_sfml_pos`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `sfml_pos`
[INFO] [stderr]   --> examples/testbed/canvas.rs:89:32
[INFO] [stderr]    |
[INFO] [stderr] 89 |     fn draw_polygon(&mut self, sfml_pos: sfml::system::Vector2f,
[INFO] [stderr]    |                                ^^^^^^^^ help: consider prefixing with an underscore: `_sfml_pos`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `alt`
[INFO] [stderr]   --> examples/testbed/input.rs:46:39
[INFO] [stderr]    |
[INFO] [stderr] 46 |             Event::KeyPressed { code, alt, ctrl, shift, system } => {
[INFO] [stderr]    |                                       ^^^ help: try ignoring the field: `alt: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `ctrl`
[INFO] [stderr]   --> examples/testbed/input.rs:46:44
[INFO] [stderr]    |
[INFO] [stderr] 46 |             Event::KeyPressed { code, alt, ctrl, shift, system } => {
[INFO] [stderr]    |                                            ^^^^ help: try ignoring the field: `ctrl: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `shift`
[INFO] [stderr]   --> examples/testbed/input.rs:46:50
[INFO] [stderr]    |
[INFO] [stderr] 46 |             Event::KeyPressed { code, alt, ctrl, shift, system } => {
[INFO] [stderr]    |                                                  ^^^^^ help: try ignoring the field: `shift: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `system`
[INFO] [stderr]   --> examples/testbed/input.rs:46:57
[INFO] [stderr]    |
[INFO] [stderr] 46 |             Event::KeyPressed { code, alt, ctrl, shift, system } => {
[INFO] [stderr]    |                                                         ^^^^^^ help: try ignoring the field: `system: _`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> examples/collisions.rs:92:9
[INFO] [stderr]    |
[INFO] [stderr] 92 |     let mut testbed = CollisionsTestbed::new(&config);
[INFO] [stderr]    |         ----^^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> examples/pyramid.rs:128:9
[INFO] [stderr]     |
[INFO] [stderr] 128 |     let mut testbed = PyramidTestbed::new(&config);
[INFO] [stderr]     |         ----^^^^^^^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `config_shape`
[INFO] [stderr]   --> examples/testbed/canvas.rs:53:5
[INFO] [stderr]    |
[INFO] [stderr] 53 |     fn config_shape<'a, T: sfml::graphics::Shape<'a>>(&self, shape: &mut T) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `input`
[INFO] [stderr]   --> examples/polygon_collisions.rs:47:29
[INFO] [stderr]    |
[INFO] [stderr] 47 |     fn sfml_loop(&mut self, input: &testbed::Input, dt: f32) {
[INFO] [stderr]    |                             ^^^^^ help: consider prefixing with an underscore: `_input`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `dt`
[INFO] [stderr]   --> examples/polygon_collisions.rs:59:59
[INFO] [stderr]    |
[INFO] [stderr] 59 |     fn sfml_draw(&mut self, canvas: &mut testbed::Canvas, dt: f32) {
[INFO] [stderr]    |                                                           ^^ help: consider prefixing with an underscore: `_dt`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `sfml_pos`
[INFO] [stderr]   --> examples/testbed/canvas.rs:63:31
[INFO] [stderr]    |
[INFO] [stderr] 63 |     fn draw_circle(&mut self, sfml_pos: sfml::system::Vector2f,
[INFO] [stderr]    |                               ^^^^^^^^ help: consider prefixing with an underscore: `_sfml_pos`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `sfml_pos`
[INFO] [stderr]   --> examples/testbed/canvas.rs:89:32
[INFO] [stderr]    |
[INFO] [stderr] 89 |     fn draw_polygon(&mut self, sfml_pos: sfml::system::Vector2f,
[INFO] [stderr]    |                                ^^^^^^^^ help: consider prefixing with an underscore: `_sfml_pos`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `alt`
[INFO] [stderr]   --> examples/testbed/input.rs:46:39
[INFO] [stderr]    |
[INFO] [stderr] 46 |             Event::KeyPressed { code, alt, ctrl, shift, system } => {
[INFO] [stderr]    |                                       ^^^ help: try ignoring the field: `alt: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `ctrl`
[INFO] [stderr]   --> examples/testbed/input.rs:46:44
[INFO] [stderr]    |
[INFO] [stderr] 46 |             Event::KeyPressed { code, alt, ctrl, shift, system } => {
[INFO] [stderr]    |                                            ^^^^ help: try ignoring the field: `ctrl: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `shift`
[INFO] [stderr]   --> examples/testbed/input.rs:46:50
[INFO] [stderr]    |
[INFO] [stderr] 46 |             Event::KeyPressed { code, alt, ctrl, shift, system } => {
[INFO] [stderr]    |                                                  ^^^^^ help: try ignoring the field: `shift: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `system`
[INFO] [stderr]   --> examples/testbed/input.rs:46:57
[INFO] [stderr]    |
[INFO] [stderr] 46 |             Event::KeyPressed { code, alt, ctrl, shift, system } => {
[INFO] [stderr]    |                                                         ^^^^^^ help: try ignoring the field: `system: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `input`
[INFO] [stderr]   --> examples/circle_collisions.rs:39:29
[INFO] [stderr]    |
[INFO] [stderr] 39 |     fn sfml_loop(&mut self, input: &testbed::Input, dt: f32) {
[INFO] [stderr]    |                             ^^^^^ help: consider prefixing with an underscore: `_input`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `dt`
[INFO] [stderr]   --> examples/circle_collisions.rs:51:59
[INFO] [stderr]    |
[INFO] [stderr] 51 |     fn sfml_draw(&mut self, canvas: &mut testbed::Canvas, dt: f32) {
[INFO] [stderr]    |                                                           ^^ help: consider prefixing with an underscore: `_dt`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `sfml_pos`
[INFO] [stderr]   --> examples/testbed/canvas.rs:63:31
[INFO] [stderr]    |
[INFO] [stderr] 63 |     fn draw_circle(&mut self, sfml_pos: sfml::system::Vector2f,
[INFO] [stderr]    |                               ^^^^^^^^ help: consider prefixing with an underscore: `_sfml_pos`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `sfml_pos`
[INFO] [stderr]   --> examples/testbed/canvas.rs:89:32
[INFO] [stderr]    |
[INFO] [stderr] 89 |     fn draw_polygon(&mut self, sfml_pos: sfml::system::Vector2f,
[INFO] [stderr]    |                                ^^^^^^^^ help: consider prefixing with an underscore: `_sfml_pos`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `alt`
[INFO] [stderr]   --> examples/testbed/input.rs:46:39
[INFO] [stderr]    |
[INFO] [stderr] 46 |             Event::KeyPressed { code, alt, ctrl, shift, system } => {
[INFO] [stderr]    |                                       ^^^ help: try ignoring the field: `alt: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `ctrl`
[INFO] [stderr]   --> examples/testbed/input.rs:46:44
[INFO] [stderr]    |
[INFO] [stderr] 46 |             Event::KeyPressed { code, alt, ctrl, shift, system } => {
[INFO] [stderr]    |                                            ^^^^ help: try ignoring the field: `ctrl: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `shift`
[INFO] [stderr]   --> examples/testbed/input.rs:46:50
[INFO] [stderr]    |
[INFO] [stderr] 46 |             Event::KeyPressed { code, alt, ctrl, shift, system } => {
[INFO] [stderr]    |                                                  ^^^^^ help: try ignoring the field: `shift: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `system`
[INFO] [stderr]   --> examples/testbed/input.rs:46:57
[INFO] [stderr]    |
[INFO] [stderr] 46 |             Event::KeyPressed { code, alt, ctrl, shift, system } => {
[INFO] [stderr]    |                                                         ^^^^^^ help: try ignoring the field: `system: _`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> examples/polygon_collisions.rs:28:13
[INFO] [stderr]    |
[INFO] [stderr] 28 |         let mut b = Body::new(poly_b.into_shape(), 10.0, Material::default());
[INFO] [stderr]    |             ----^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `config_shape`
[INFO] [stderr]   --> examples/testbed/canvas.rs:53:5
[INFO] [stderr]    |
[INFO] [stderr] 53 |     fn config_shape<'a, T: sfml::graphics::Shape<'a>>(&self, shape: &mut T) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> examples/circle_collisions.rs:21:13
[INFO] [stderr]    |
[INFO] [stderr] 21 |         let mut b = Body::new(circle_b.into_shape(), 10.0, Material::new(0.3, 0.3));
[INFO] [stderr]    |             ----^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> examples/polygon_collisions.rs:79:9
[INFO] [stderr]    |
[INFO] [stderr] 79 |     let mut testbed = PolygonCollisionsTestbed::new();
[INFO] [stderr]    |         ----^^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> examples/circle_collisions.rs:71:9
[INFO] [stderr]    |
[INFO] [stderr] 71 |     let mut testbed = CircleCollisionsTestbed::new();
[INFO] [stderr]    |         ----^^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `config_shape`
[INFO] [stderr]   --> examples/testbed/canvas.rs:53:5
[INFO] [stderr]    |
[INFO] [stderr] 53 |     fn config_shape<'a, T: sfml::graphics::Shape<'a>>(&self, shape: &mut T) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `draw_line`
[INFO] [stderr]    --> examples/testbed/canvas.rs:142:5
[INFO] [stderr]     |
[INFO] [stderr] 142 |     pub fn draw_line(&mut self, a: Vec2, b: Vec2) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `draw_text`
[INFO] [stderr]    --> examples/testbed/canvas.rs:158:5
[INFO] [stderr]     |
[INFO] [stderr] 158 |     pub fn draw_text(&mut self, text: String, size: u32) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `config_shape`
[INFO] [stderr]   --> examples/testbed/canvas.rs:53:5
[INFO] [stderr]    |
[INFO] [stderr] 53 |     fn config_shape<'a, T: sfml::graphics::Shape<'a>>(&self, shape: &mut T) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `draw_line`
[INFO] [stderr]    --> examples/testbed/canvas.rs:142:5
[INFO] [stderr]     |
[INFO] [stderr] 142 |     pub fn draw_line(&mut self, a: Vec2, b: Vec2) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `draw_text`
[INFO] [stderr]    --> examples/testbed/canvas.rs:158:5
[INFO] [stderr]     |
[INFO] [stderr] 158 |     pub fn draw_text(&mut self, text: String, size: u32) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.50s
[INFO] running `"docker" "inspect" "5cf22aed1f565a43900a14d5fe34b90c3371f84871b40967d78325ffade601b5"`
[INFO] running `"docker" "rm" "-f" "5cf22aed1f565a43900a14d5fe34b90c3371f84871b40967d78325ffade601b5"`
[INFO] [stdout] 5cf22aed1f565a43900a14d5fe34b90c3371f84871b40967d78325ffade601b5