[INFO] cloning repository https://github.com/siddha20/rs-phys
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/siddha20/rs-phys" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsiddha20%2Frs-phys", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsiddha20%2Frs-phys'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3f00df25664ba9ee4ee4a62aa3fbdba7f7224593
[INFO] checking siddha20/rs-phys against master#bca37a20bd376ce3fd138e7cdee7fe704e0f8814 for pr-139493-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsiddha20%2Frs-phys" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/siddha20/rs-phys
[INFO] finished tweaking git repo https://github.com/siddha20/rs-phys
[INFO] tweaked toml for git repo https://github.com/siddha20/rs-phys written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/siddha20/rs-phys on toolchain bca37a20bd376ce3fd138e7cdee7fe704e0f8814
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/siddha20/rs-phys already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d744273865bea2bc4a89be6a4a65902158fde4c4f8f24cdd3496a5bf56c3c2f2
[INFO] running `Command { std: "docker" "start" "-a" "d744273865bea2bc4a89be6a4a65902158fde4c4f8f24cdd3496a5bf56c3c2f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d744273865bea2bc4a89be6a4a65902158fde4c4f8f24cdd3496a5bf56c3c2f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d744273865bea2bc4a89be6a4a65902158fde4c4f8f24cdd3496a5bf56c3c2f2", kill_on_drop: false }`
[INFO] [stdout] d744273865bea2bc4a89be6a4a65902158fde4c4f8f24cdd3496a5bf56c3c2f2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1addd63c1d75f9d75c7faa258cc883f0ec5c304ab707ccd3e2477ee2a0cb4d8e
[INFO] running `Command { std: "docker" "start" "-a" "1addd63c1d75f9d75c7faa258cc883f0ec5c304ab707ccd3e2477ee2a0cb4d8e", kill_on_drop: false }`
[INFO] [stderr]    Compiling version-compare v0.1.0
[INFO] [stderr]     Checking matrixmultiply v0.3.2
[INFO] [stderr]     Checking num-integer v0.1.45
[INFO] [stderr]     Checking num-complex v0.4.2
[INFO] [stderr]    Compiling sdl2-sys v0.35.2
[INFO] [stderr]    Compiling sdl2 v0.35.2
[INFO] [stderr]     Checking ndarray v0.15.6
[INFO] [stderr]     Checking engine v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: type `func_t_x_v` should have an upper camel case name
[INFO] [stdout]  --> src/driver/physics.rs:7:6
[INFO] [stdout]   |
[INFO] [stdout] 7 | type func_t_x_v = fn(t: f64, x: f64, v: f64) -> f64;
[INFO] [stdout]   |      ^^^^^^^^^^ help: convert the identifier to upper camel case: `FuncTXV`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_camel_case_types)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `func_t_ent` should have an upper camel case name
[INFO] [stdout]  --> src/driver/physics.rs:8:6
[INFO] [stdout]   |
[INFO] [stdout] 8 | type func_t_ent = fn(t: f64, ent: &Entity) -> Array1::<f64>;
[INFO] [stdout]   |      ^^^^^^^^^^ help: convert the identifier to upper camel case: `FuncTEnt`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `fa_ent`, `fa`, `fv_ent`, `fv`, `rk4_2d`, and `rk4`
[INFO] [stdout]   --> src/main.rs:7:5
[INFO] [stdout]    |
[INFO] [stdout]  7 |     fv,
[INFO] [stdout]    |     ^^
[INFO] [stdout]  8 |     fa,
[INFO] [stdout]    |     ^^
[INFO] [stdout]  9 |     rk4,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 10 |     fv_ent,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 11 |     fa_ent,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 12 |     rk4_2d
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `func_t_x_v` should have an upper camel case name
[INFO] [stdout]  --> src/driver/physics.rs:7:6
[INFO] [stdout]   |
[INFO] [stdout] 7 | type func_t_x_v = fn(t: f64, x: f64, v: f64) -> f64;
[INFO] [stdout]   |      ^^^^^^^^^^ help: convert the identifier to upper camel case: `FuncTXV`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_camel_case_types)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `func_t_ent` should have an upper camel case name
[INFO] [stdout]  --> src/driver/physics.rs:8:6
[INFO] [stdout]   |
[INFO] [stdout] 8 | type func_t_ent = fn(t: f64, ent: &Entity) -> Array1::<f64>;
[INFO] [stdout]   |      ^^^^^^^^^^ help: convert the identifier to upper camel case: `FuncTEnt`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `fa_ent`, `fa`, `fv_ent`, `fv`, `rk4_2d`, and `rk4`
[INFO] [stdout]   --> src/main.rs:7:5
[INFO] [stdout]    |
[INFO] [stdout]  7 |     fv,
[INFO] [stdout]    |     ^^
[INFO] [stdout]  8 |     fa,
[INFO] [stdout]    |     ^^
[INFO] [stdout]  9 |     rk4,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 10 |     fv_ent,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 11 |     fa_ent,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 12 |     rk4_2d
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `t`
[INFO] [stdout]   --> src/driver/physics.rs:17:11
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub fn fv(t: f64, x: f64, v: f64) -> f64 {
[INFO] [stdout]    |           ^ help: if this is intentional, prefix it with an underscore: `_t`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]   --> src/driver/physics.rs:17:19
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub fn fv(t: f64, x: f64, v: f64) -> f64 {
[INFO] [stdout]    |                   ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `t`
[INFO] [stdout]   --> src/driver/physics.rs:23:11
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub fn fa(t: f64, x:f64, v: f64) -> f64 {
[INFO] [stdout]    |           ^ help: if this is intentional, prefix it with an underscore: `_t`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `v`
[INFO] [stdout]   --> src/driver/physics.rs:23:26
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub fn fa(t: f64, x:f64, v: f64) -> f64 {
[INFO] [stdout]    |                          ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `t`
[INFO] [stdout]   --> src/driver/physics.rs:45:15
[INFO] [stdout]    |
[INFO] [stdout] 45 | pub fn fv_ent(t: f64, ent: &Entity) -> Array1::<f64> {
[INFO] [stdout]    |               ^ help: if this is intentional, prefix it with an underscore: `_t`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `t`
[INFO] [stdout]   --> src/driver/physics.rs:49:15
[INFO] [stdout]    |
[INFO] [stdout] 49 | pub fn fa_ent(t: f64, ent: &Entity) -> Array1::<f64> {
[INFO] [stdout]    |               ^ help: if this is intentional, prefix it with an underscore: `_t`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ent`
[INFO] [stdout]   --> src/driver/world.rs:55:17
[INFO] [stdout]    |
[INFO] [stdout] 55 |             let mut ent: Entity;
[INFO] [stdout]    |                 ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_ent`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/painter.rs:27:13
[INFO] [stdout]    |
[INFO] [stdout] 27 |         let mut event_pump = sdl_context.event_pump().unwrap();
[INFO] [stdout]    |             ----^^^^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/painter.rs:32:13
[INFO] [stdout]    |
[INFO] [stdout] 32 |         let mut canvas = window.into_canvas().build().unwrap();
[INFO] [stdout]    |             ----^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Driver` is never constructed
[INFO] [stdout]  --> src/driver.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub struct Driver {
[INFO] [stdout]   |            ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `accel` is never read
[INFO] [stdout]   --> src/driver/entity.rs:24:9
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub struct Entity { 
[INFO] [stdout]    |            ------ field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 24 |     pub accel: Array1::<f64>
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Entity` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `create` is never used
[INFO] [stdout]   --> src/driver/entity.rs:38:12
[INFO] [stdout]    |
[INFO] [stdout] 27 | impl Entity {
[INFO] [stdout]    | ----------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 38 |     pub fn create(rec: Rec, 
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `func_t_x_v` is never used
[INFO] [stdout]  --> src/driver/physics.rs:7:6
[INFO] [stdout]   |
[INFO] [stdout] 7 | type func_t_x_v = fn(t: f64, x: f64, v: f64) -> f64;
[INFO] [stdout]   |      ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `fv` is never used
[INFO] [stdout]   --> src/driver/physics.rs:17:8
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub fn fv(t: f64, x: f64, v: f64) -> f64 {
[INFO] [stdout]    |        ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `fa` is never used
[INFO] [stdout]   --> src/driver/physics.rs:23:8
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub fn fa(t: f64, x:f64, v: f64) -> f64 {
[INFO] [stdout]    |        ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `rk4` is never used
[INFO] [stdout]   --> src/driver/physics.rs:28:8
[INFO] [stdout]    |
[INFO] [stdout] 28 | pub fn rk4(dt: f64, t: f64,  x: f64, v: f64, fv: func_t_x_v, fa: func_t_x_v) -> (f64, f64, f64) {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `update` is never used
[INFO] [stdout]   --> src/driver/world.rs:40:12
[INFO] [stdout]    |
[INFO] [stdout] 19 | impl World {
[INFO] [stdout]    | ---------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 40 |     pub fn update(&mut self) {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `sdl_context`, `video_subsystem`, and `canvas_width` are never read
[INFO] [stdout]   --> src/painter.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub struct Painter {
[INFO] [stdout]    |            ------- fields in this struct
[INFO] [stdout] 15 |     sdl_context: Sdl,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 16 |     video_subsystem: VideoSubsystem,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 20 |     canvas_width: u32
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `test` is never used
[INFO] [stdout]   --> src/painter.rs:78:12
[INFO] [stdout]    |
[INFO] [stdout] 23 | impl Painter {
[INFO] [stdout]    | ------------ method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 78 |     pub fn test(&mut self) {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `t`
[INFO] [stdout]   --> src/driver/physics.rs:17:11
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub fn fv(t: f64, x: f64, v: f64) -> f64 {
[INFO] [stdout]    |           ^ help: if this is intentional, prefix it with an underscore: `_t`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]   --> src/driver/physics.rs:17:19
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub fn fv(t: f64, x: f64, v: f64) -> f64 {
[INFO] [stdout]    |                   ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `t`
[INFO] [stdout]   --> src/driver/physics.rs:23:11
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub fn fa(t: f64, x:f64, v: f64) -> f64 {
[INFO] [stdout]    |           ^ help: if this is intentional, prefix it with an underscore: `_t`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `v`
[INFO] [stdout]   --> src/driver/physics.rs:23:26
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub fn fa(t: f64, x:f64, v: f64) -> f64 {
[INFO] [stdout]    |                          ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `t`
[INFO] [stdout]   --> src/driver/physics.rs:45:15
[INFO] [stdout]    |
[INFO] [stdout] 45 | pub fn fv_ent(t: f64, ent: &Entity) -> Array1::<f64> {
[INFO] [stdout]    |               ^ help: if this is intentional, prefix it with an underscore: `_t`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `t`
[INFO] [stdout]   --> src/driver/physics.rs:49:15
[INFO] [stdout]    |
[INFO] [stdout] 49 | pub fn fa_ent(t: f64, ent: &Entity) -> Array1::<f64> {
[INFO] [stdout]    |               ^ help: if this is intentional, prefix it with an underscore: `_t`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ent`
[INFO] [stdout]   --> src/driver/world.rs:55:17
[INFO] [stdout]    |
[INFO] [stdout] 55 |             let mut ent: Entity;
[INFO] [stdout]    |                 ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_ent`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/painter.rs:27:13
[INFO] [stdout]    |
[INFO] [stdout] 27 |         let mut event_pump = sdl_context.event_pump().unwrap();
[INFO] [stdout]    |             ----^^^^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/painter.rs:32:13
[INFO] [stdout]    |
[INFO] [stdout] 32 |         let mut canvas = window.into_canvas().build().unwrap();
[INFO] [stdout]    |             ----^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Driver` is never constructed
[INFO] [stdout]  --> src/driver.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub struct Driver {
[INFO] [stdout]   |            ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `accel` is never read
[INFO] [stdout]   --> src/driver/entity.rs:24:9
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub struct Entity { 
[INFO] [stdout]    |            ------ field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 24 |     pub accel: Array1::<f64>
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Entity` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `create` is never used
[INFO] [stdout]   --> src/driver/entity.rs:38:12
[INFO] [stdout]    |
[INFO] [stdout] 27 | impl Entity {
[INFO] [stdout]    | ----------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 38 |     pub fn create(rec: Rec, 
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `func_t_x_v` is never used
[INFO] [stdout]  --> src/driver/physics.rs:7:6
[INFO] [stdout]   |
[INFO] [stdout] 7 | type func_t_x_v = fn(t: f64, x: f64, v: f64) -> f64;
[INFO] [stdout]   |      ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `fv` is never used
[INFO] [stdout]   --> src/driver/physics.rs:17:8
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub fn fv(t: f64, x: f64, v: f64) -> f64 {
[INFO] [stdout]    |        ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `fa` is never used
[INFO] [stdout]   --> src/driver/physics.rs:23:8
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub fn fa(t: f64, x:f64, v: f64) -> f64 {
[INFO] [stdout]    |        ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `rk4` is never used
[INFO] [stdout]   --> src/driver/physics.rs:28:8
[INFO] [stdout]    |
[INFO] [stdout] 28 | pub fn rk4(dt: f64, t: f64,  x: f64, v: f64, fv: func_t_x_v, fa: func_t_x_v) -> (f64, f64, f64) {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `update` is never used
[INFO] [stdout]   --> src/driver/world.rs:40:12
[INFO] [stdout]    |
[INFO] [stdout] 19 | impl World {
[INFO] [stdout]    | ---------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 40 |     pub fn update(&mut self) {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `sdl_context`, `video_subsystem`, and `canvas_width` are never read
[INFO] [stdout]   --> src/painter.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub struct Painter {
[INFO] [stdout]    |            ------- fields in this struct
[INFO] [stdout] 15 |     sdl_context: Sdl,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 16 |     video_subsystem: VideoSubsystem,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 20 |     canvas_width: u32
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `test` is never used
[INFO] [stdout]   --> src/painter.rs:78:12
[INFO] [stdout]    |
[INFO] [stdout] 23 | impl Painter {
[INFO] [stdout]    | ------------ method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 78 |     pub fn test(&mut self) {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.80s
[INFO] running `Command { std: "docker" "inspect" "1addd63c1d75f9d75c7faa258cc883f0ec5c304ab707ccd3e2477ee2a0cb4d8e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1addd63c1d75f9d75c7faa258cc883f0ec5c304ab707ccd3e2477ee2a0cb4d8e", kill_on_drop: false }`
[INFO] [stdout] 1addd63c1d75f9d75c7faa258cc883f0ec5c304ab707ccd3e2477ee2a0cb4d8e
