[INFO] cloning repository https://github.com/LevoSpacewars/graphics
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/LevoSpacewars/graphics" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLevoSpacewars%2Fgraphics", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLevoSpacewars%2Fgraphics'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e0d41f14811ab567d6e1b055e82e3e7364c5988d
[INFO] testing LevoSpacewars/graphics against master#1871252fc8bb672d40787e67404e6eaae7059369 for pr-125151
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLevoSpacewars%2Fgraphics" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/LevoSpacewars/graphics on toolchain 1871252fc8bb672d40787e67404e6eaae7059369
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/LevoSpacewars/graphics
[INFO] finished tweaking git repo https://github.com/LevoSpacewars/graphics
[INFO] tweaked toml for git repo https://github.com/LevoSpacewars/graphics written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/LevoSpacewars/graphics 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" "+1871252fc8bb672d40787e67404e6eaae7059369" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[ERROR] this task or one of its parent failed!
[ERROR] no output for 300 seconds
[ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace.
[INFO] testing LevoSpacewars/graphics against try#b642703cf9526da1e72c0b6755753b939a9c6b6d for pr-125151
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLevoSpacewars%2Fgraphics" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/LevoSpacewars/graphics on toolchain b642703cf9526da1e72c0b6755753b939a9c6b6d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b642703cf9526da1e72c0b6755753b939a9c6b6d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/LevoSpacewars/graphics
[INFO] finished tweaking git repo https://github.com/LevoSpacewars/graphics
[INFO] tweaked toml for git repo https://github.com/LevoSpacewars/graphics written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/LevoSpacewars/graphics 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" "+b642703cf9526da1e72c0b6755753b939a9c6b6d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+b642703cf9526da1e72c0b6755753b939a9c6b6d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7dc4d9a13665b193c8886ba13b61f5ef40ae50eeeba3a9cd5ec5f345ef0aa690
[INFO] running `Command { std: "docker" "start" "-a" "7dc4d9a13665b193c8886ba13b61f5ef40ae50eeeba3a9cd5ec5f345ef0aa690", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7dc4d9a13665b193c8886ba13b61f5ef40ae50eeeba3a9cd5ec5f345ef0aa690", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7dc4d9a13665b193c8886ba13b61f5ef40ae50eeeba3a9cd5ec5f345ef0aa690", kill_on_drop: false }`
[INFO] [stdout] 7dc4d9a13665b193c8886ba13b61f5ef40ae50eeeba3a9cd5ec5f345ef0aa690
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+b642703cf9526da1e72c0b6755753b939a9c6b6d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 29609a01dd0ac6b43df5de29d00e596ac09a24999a22293bbeecb49f846fc565
[INFO] running `Command { std: "docker" "start" "-a" "29609a01dd0ac6b43df5de29d00e596ac09a24999a22293bbeecb49f846fc565", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling khronos_api v3.1.0
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling version-compare v0.1.0
[INFO] [stderr]    Compiling xml-rs v0.8.4
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling sdl2 v0.35.2
[INFO] [stderr]    Compiling rawpointer v0.2.1
[INFO] [stderr]    Compiling ppv-lite86 v0.2.16
[INFO] [stderr]    Compiling sdl2-sys v0.35.2
[INFO] [stderr]    Compiling matrixmultiply v0.3.2
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling gl_generator v0.14.0
[INFO] [stderr]    Compiling getrandom v0.2.7
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling gl v0.14.0
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling num-complex v0.4.2
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling ndarray v0.15.4
[INFO] [stderr]    Compiling graphics v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `sdl2::pixels::Color`
[INFO] [stdout]  --> src/main.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use sdl2::pixels::Color;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `sdl2::event::Event`
[INFO] [stdout]  --> src/main.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use sdl2::event::Event;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `sdl2::keyboard::Keycode`
[INFO] [stdout]   --> src/main.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use sdl2::keyboard::Keycode;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::time::Duration`
[INFO] [stdout]   --> src/main.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use std::time::Duration;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `sdl2::render::Canvas`
[INFO] [stdout]   --> src/main.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | use sdl2::render::Canvas;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `sdl2::video::Window`
[INFO] [stdout]   --> src/main.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | use sdl2::video::Window;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `sdl2::rect::Point`
[INFO] [stdout]   --> src/main.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | use sdl2::rect::Point;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::vec`
[INFO] [stdout]  --> src/physics_engine.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::vec;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> src/physics_engine.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `sdl2::rect::Point`
[INFO] [stdout]  --> src/physics_engine.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use sdl2::rect::Point;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ndarray::ArrayBase`
[INFO] [stdout]  --> src/physics_engine.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use ndarray::ArrayBase;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ndarray::array`
[INFO] [stdout]  --> src/physics_engine.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use ndarray::array;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]    --> src/physics_engine.rs:111:18
[INFO] [stdout]     |
[INFO] [stdout] 111 |         com_x /= (self.objects.len() as f64);
[INFO] [stdout]     |                  ^                         ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 111 -         com_x /= (self.objects.len() as f64);
[INFO] [stdout] 111 +         com_x /= self.objects.len() as f64;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]    --> src/physics_engine.rs:112:18
[INFO] [stdout]     |
[INFO] [stdout] 112 |         com_y /= (self.objects.len() as f64);
[INFO] [stdout]     |                  ^                         ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 112 -         com_y /= (self.objects.len() as f64);
[INFO] [stdout] 112 +         com_y /= self.objects.len() as f64;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]    --> src/physics_engine.rs:115:48
[INFO] [stdout]     |
[INFO] [stdout] 115 |             self.objects[index].position[0] += (250.0 - com_x);
[INFO] [stdout]     |                                                ^             ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 115 -             self.objects[index].position[0] += (250.0 - com_x);
[INFO] [stdout] 115 +             self.objects[index].position[0] += 250.0 - com_x;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]    --> src/physics_engine.rs:116:48
[INFO] [stdout]     |
[INFO] [stdout] 116 |             self.objects[index].position[1] += (250.0 - com_y);
[INFO] [stdout]     |                                                ^             ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 116 -             self.objects[index].position[1] += (250.0 - com_y);
[INFO] [stdout] 116 +             self.objects[index].position[1] += 250.0 - com_y;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `PhysicsObject`
[INFO] [stdout]   --> src/main.rs:18:37
[INFO] [stdout]    |
[INFO] [stdout] 18 | use physics_engine::{PhysicsEngine, PhysicsObject, Gradient};
[INFO] [stdout]    |                                     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `sdl2::pixels::Color`
[INFO] [stdout]  --> src/visualizer.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use sdl2::pixels::Color;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `sdl2::event::Event`
[INFO] [stdout]  --> src/visualizer.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use sdl2::event::Event;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `sdl2::keyboard::Keycode`
[INFO] [stdout]  --> src/visualizer.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use sdl2::keyboard::Keycode;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `sdl2::rect::Point`
[INFO] [stdout]   --> src/visualizer.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | use sdl2::rect::Point;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/physics_engine.rs:56:13
[INFO] [stdout]    |
[INFO] [stdout] 56 |         let mut accel = [0.0,0.0];
[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/physics_engine.rs:57:13
[INFO] [stdout]    |
[INFO] [stdout] 57 |         let mut naccel = [0.0,0.0];
[INFO] [stdout]    |             ----^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/physics_engine.rs:58:13
[INFO] [stdout]    |
[INFO] [stdout] 58 |         let mut npos = [0.0,0.0];
[INFO] [stdout]    |             ----^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/physics_engine.rs:59:13
[INFO] [stdout]    |
[INFO] [stdout] 59 | ...   let mut po = PhysicsObject{position: pos, veclocity: vel, mass:mass, radius:radius, acceleration:accel, nacceleration:naccel, nposi...
[INFO] [stdout]    |           ----^^
[INFO] [stdout]    |           |
[INFO] [stdout]    |           help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/physics_engine.rs:147:13
[INFO] [stdout]     |
[INFO] [stdout] 147 |         let mut vec = Vec::<PhysicsObject>::new();
[INFO] [stdout]     |             ----^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/physics_engine.rs:149:13
[INFO] [stdout]     |
[INFO] [stdout] 149 |         let mut pe = PhysicsEngine{objects:vec,
[INFO] [stdout]     |             ----^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `px` is never read
[INFO] [stdout]   --> src/visualizer.rs:36:17
[INFO] [stdout]    |
[INFO] [stdout] 36 |         let mut px:f64 = 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 `py` is never read
[INFO] [stdout]   --> src/visualizer.rs:37:17
[INFO] [stdout]    |
[INFO] [stdout] 37 |         let mut py:f64 = 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 `r` is never read
[INFO] [stdout]   --> src/visualizer.rs:38:17
[INFO] [stdout]    |
[INFO] [stdout] 38 |         let mut r:f64 = 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/visualizer.rs:121:13
[INFO] [stdout]     |
[INFO] [stdout] 121 |         let mut canvas = window.into_canvas()
[INFO] [stdout]     |             ----^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/visualizer.rs:134:13
[INFO] [stdout]     |
[INFO] [stdout] 134 |         let mut visualizer = Visualizer{
[INFO] [stdout]     |             ----^^^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/main.rs:32:9
[INFO] [stdout]    |
[INFO] [stdout] 32 |     for i in 0..50{
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `mass` and `group` are never read
[INFO] [stdout]   --> src/physics_engine.rs:15:9
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub struct PhysicsObject<'a>{
[INFO] [stdout]    |            ------------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 15 |     pub mass: f64,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 16 |     pub radius: i32,
[INFO] [stdout] 17 |     pub group: &'a str,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `func` is never used
[INFO] [stdout]   --> src/physics_engine.rs:27:12
[INFO] [stdout]    |
[INFO] [stdout] 26 | impl Gradient{
[INFO] [stdout]    | ------------- associated function in this implementation
[INFO] [stdout] 27 |     pub fn func(pos: &[f64;2])->[f64;2]{
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `grad` is never read
[INFO] [stdout]   --> src/physics_engine.rs:43:5
[INFO] [stdout]    |
[INFO] [stdout] 40 | pub struct PhysicsEngine<'a>{
[INFO] [stdout]    |            ------------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 43 |     grad: Gradient,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `update_cell_list` is never used
[INFO] [stdout]   --> src/physics_engine.rs:98:12
[INFO] [stdout]    |
[INFO] [stdout] 54 | impl PhysicsEngine<'_>{
[INFO] [stdout]    | ---------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 98 |     pub fn update_cell_list(&mut self){
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `refreshrate`, `sdl_context`, `video_subsystem`, and `ptime` are never read
[INFO] [stdout]   --> src/visualizer.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub struct Visualizer{
[INFO] [stdout]    |            ---------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 20 |     refreshrate: f64,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 21 |     sdl_context: Sdl,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 22 |     video_subsystem: VideoSubsystem,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 28 |     ptime: u128,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/visualizer.rs:94:9
[INFO] [stdout]    |
[INFO] [stdout] 94 |         self.texture.update(None, &self.pixels, self.width*3);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 94 |         let _ = self.texture.update(None, &self.pixels, self.width*3);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 39 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 14.14s
[INFO] running `Command { std: "docker" "inspect" "29609a01dd0ac6b43df5de29d00e596ac09a24999a22293bbeecb49f846fc565", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "29609a01dd0ac6b43df5de29d00e596ac09a24999a22293bbeecb49f846fc565", kill_on_drop: false }`
[INFO] [stdout] 29609a01dd0ac6b43df5de29d00e596ac09a24999a22293bbeecb49f846fc565
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+b642703cf9526da1e72c0b6755753b939a9c6b6d" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c63e705673c7a9b58e2389789983f89b54d44c56578389a6de0037fade315aca
[INFO] running `Command { std: "docker" "start" "-a" "c63e705673c7a9b58e2389789983f89b54d44c56578389a6de0037fade315aca", kill_on_drop: false }`
[INFO] [stderr]    Compiling graphics v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `sdl2::pixels::Color`
[INFO] [stdout]  --> src/main.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use sdl2::pixels::Color;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `sdl2::event::Event`
[INFO] [stdout]  --> src/main.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use sdl2::event::Event;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `sdl2::keyboard::Keycode`
[INFO] [stdout]   --> src/main.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use sdl2::keyboard::Keycode;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::time::Duration`
[INFO] [stdout]   --> src/main.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use std::time::Duration;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `sdl2::render::Canvas`
[INFO] [stdout]   --> src/main.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | use sdl2::render::Canvas;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `sdl2::video::Window`
[INFO] [stdout]   --> src/main.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | use sdl2::video::Window;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `sdl2::rect::Point`
[INFO] [stdout]   --> src/main.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | use sdl2::rect::Point;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::vec`
[INFO] [stdout]  --> src/physics_engine.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::vec;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> src/physics_engine.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `sdl2::rect::Point`
[INFO] [stdout]  --> src/physics_engine.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use sdl2::rect::Point;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ndarray::ArrayBase`
[INFO] [stdout]  --> src/physics_engine.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use ndarray::ArrayBase;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ndarray::array`
[INFO] [stdout]  --> src/physics_engine.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use ndarray::array;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]    --> src/physics_engine.rs:111:18
[INFO] [stdout]     |
[INFO] [stdout] 111 |         com_x /= (self.objects.len() as f64);
[INFO] [stdout]     |                  ^                         ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 111 -         com_x /= (self.objects.len() as f64);
[INFO] [stdout] 111 +         com_x /= self.objects.len() as f64;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]    --> src/physics_engine.rs:112:18
[INFO] [stdout]     |
[INFO] [stdout] 112 |         com_y /= (self.objects.len() as f64);
[INFO] [stdout]     |                  ^                         ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 112 -         com_y /= (self.objects.len() as f64);
[INFO] [stdout] 112 +         com_y /= self.objects.len() as f64;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]    --> src/physics_engine.rs:115:48
[INFO] [stdout]     |
[INFO] [stdout] 115 |             self.objects[index].position[0] += (250.0 - com_x);
[INFO] [stdout]     |                                                ^             ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 115 -             self.objects[index].position[0] += (250.0 - com_x);
[INFO] [stdout] 115 +             self.objects[index].position[0] += 250.0 - com_x;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]    --> src/physics_engine.rs:116:48
[INFO] [stdout]     |
[INFO] [stdout] 116 |             self.objects[index].position[1] += (250.0 - com_y);
[INFO] [stdout]     |                                                ^             ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 116 -             self.objects[index].position[1] += (250.0 - com_y);
[INFO] [stdout] 116 +             self.objects[index].position[1] += 250.0 - com_y;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `PhysicsObject`
[INFO] [stdout]   --> src/main.rs:18:37
[INFO] [stdout]    |
[INFO] [stdout] 18 | use physics_engine::{PhysicsEngine, PhysicsObject, Gradient};
[INFO] [stdout]    |                                     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `sdl2::pixels::Color`
[INFO] [stdout]  --> src/visualizer.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use sdl2::pixels::Color;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `sdl2::event::Event`
[INFO] [stdout]  --> src/visualizer.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use sdl2::event::Event;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `sdl2::keyboard::Keycode`
[INFO] [stdout]  --> src/visualizer.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use sdl2::keyboard::Keycode;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `sdl2::rect::Point`
[INFO] [stdout]   --> src/visualizer.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | use sdl2::rect::Point;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/physics_engine.rs:56:13
[INFO] [stdout]    |
[INFO] [stdout] 56 |         let mut accel = [0.0,0.0];
[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/physics_engine.rs:57:13
[INFO] [stdout]    |
[INFO] [stdout] 57 |         let mut naccel = [0.0,0.0];
[INFO] [stdout]    |             ----^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/physics_engine.rs:58:13
[INFO] [stdout]    |
[INFO] [stdout] 58 |         let mut npos = [0.0,0.0];
[INFO] [stdout]    |             ----^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/physics_engine.rs:59:13
[INFO] [stdout]    |
[INFO] [stdout] 59 | ...   let mut po = PhysicsObject{position: pos, veclocity: vel, mass:mass, radius:radius, acceleration:accel, nacceleration:naccel, nposi...
[INFO] [stdout]    |           ----^^
[INFO] [stdout]    |           |
[INFO] [stdout]    |           help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/physics_engine.rs:147:13
[INFO] [stdout]     |
[INFO] [stdout] 147 |         let mut vec = Vec::<PhysicsObject>::new();
[INFO] [stdout]     |             ----^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/physics_engine.rs:149:13
[INFO] [stdout]     |
[INFO] [stdout] 149 |         let mut pe = PhysicsEngine{objects:vec,
[INFO] [stdout]     |             ----^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `px` is never read
[INFO] [stdout]   --> src/visualizer.rs:36:17
[INFO] [stdout]    |
[INFO] [stdout] 36 |         let mut px:f64 = 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 `py` is never read
[INFO] [stdout]   --> src/visualizer.rs:37:17
[INFO] [stdout]    |
[INFO] [stdout] 37 |         let mut py:f64 = 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 `r` is never read
[INFO] [stdout]   --> src/visualizer.rs:38:17
[INFO] [stdout]    |
[INFO] [stdout] 38 |         let mut r:f64 = 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/visualizer.rs:121:13
[INFO] [stdout]     |
[INFO] [stdout] 121 |         let mut canvas = window.into_canvas()
[INFO] [stdout]     |             ----^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/visualizer.rs:134:13
[INFO] [stdout]     |
[INFO] [stdout] 134 |         let mut visualizer = Visualizer{
[INFO] [stdout]     |             ----^^^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/main.rs:32:9
[INFO] [stdout]    |
[INFO] [stdout] 32 |     for i in 0..50{
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `mass` and `group` are never read
[INFO] [stdout]   --> src/physics_engine.rs:15:9
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub struct PhysicsObject<'a>{
[INFO] [stdout]    |            ------------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 15 |     pub mass: f64,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 16 |     pub radius: i32,
[INFO] [stdout] 17 |     pub group: &'a str,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `func` is never used
[INFO] [stdout]   --> src/physics_engine.rs:27:12
[INFO] [stdout]    |
[INFO] [stdout] 26 | impl Gradient{
[INFO] [stdout]    | ------------- associated function in this implementation
[INFO] [stdout] 27 |     pub fn func(pos: &[f64;2])->[f64;2]{
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `grad` is never read
[INFO] [stdout]   --> src/physics_engine.rs:43:5
[INFO] [stdout]    |
[INFO] [stdout] 40 | pub struct PhysicsEngine<'a>{
[INFO] [stdout]    |            ------------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 43 |     grad: Gradient,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `update_cell_list` is never used
[INFO] [stdout]   --> src/physics_engine.rs:98:12
[INFO] [stdout]    |
[INFO] [stdout] 54 | impl PhysicsEngine<'_>{
[INFO] [stdout]    | ---------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 98 |     pub fn update_cell_list(&mut self){
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `refreshrate`, `sdl_context`, `video_subsystem`, and `ptime` are never read
[INFO] [stdout]   --> src/visualizer.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub struct Visualizer{
[INFO] [stdout]    |            ---------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 20 |     refreshrate: f64,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 21 |     sdl_context: Sdl,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 22 |     video_subsystem: VideoSubsystem,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 28 |     ptime: u128,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/visualizer.rs:94:9
[INFO] [stdout]    |
[INFO] [stdout] 94 |         self.texture.update(None, &self.pixels, self.width*3);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 94 |         let _ = self.texture.update(None, &self.pixels, self.width*3);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.46s
[INFO] [stdout] warning: 39 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "c63e705673c7a9b58e2389789983f89b54d44c56578389a6de0037fade315aca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c63e705673c7a9b58e2389789983f89b54d44c56578389a6de0037fade315aca", kill_on_drop: false }`
[INFO] [stdout] c63e705673c7a9b58e2389789983f89b54d44c56578389a6de0037fade315aca
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+b642703cf9526da1e72c0b6755753b939a9c6b6d" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 60a4a896957bbca8d1d7d9ec3f7a799660277ce976066d89b859a2f55c0a2119
[INFO] running `Command { std: "docker" "start" "-a" "60a4a896957bbca8d1d7d9ec3f7a799660277ce976066d89b859a2f55c0a2119", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `sdl2::pixels::Color`
[INFO] [stderr]  --> src/main.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use sdl2::pixels::Color;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `sdl2::event::Event`
[INFO] [stderr]  --> src/main.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 | use sdl2::event::Event;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `sdl2::keyboard::Keycode`
[INFO] [stderr]   --> src/main.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 | use sdl2::keyboard::Keycode;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::time::Duration`
[INFO] [stderr]   --> src/main.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 | use std::time::Duration;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `sdl2::render::Canvas`
[INFO] [stderr]   --> src/main.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 | use sdl2::render::Canvas;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `sdl2::video::Window`
[INFO] [stderr]   --> src/main.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 | use sdl2::video::Window;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `sdl2::rect::Point`
[INFO] [stderr]   --> src/main.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 | use sdl2::rect::Point;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::vec`
[INFO] [stderr]  --> src/physics_engine.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::vec;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::collections::HashMap`
[INFO] [stderr]  --> src/physics_engine.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::collections::HashMap;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `sdl2::rect::Point`
[INFO] [stderr]  --> src/physics_engine.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use sdl2::rect::Point;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `ndarray::ArrayBase`
[INFO] [stderr]  --> src/physics_engine.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use ndarray::ArrayBase;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `ndarray::array`
[INFO] [stderr]  --> src/physics_engine.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use ndarray::array;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]    --> src/physics_engine.rs:111:18
[INFO] [stderr]     |
[INFO] [stderr] 111 |         com_x /= (self.objects.len() as f64);
[INFO] [stderr]     |                  ^                         ^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 111 -         com_x /= (self.objects.len() as f64);
[INFO] [stderr] 111 +         com_x /= self.objects.len() as f64;
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]    --> src/physics_engine.rs:112:18
[INFO] [stderr]     |
[INFO] [stderr] 112 |         com_y /= (self.objects.len() as f64);
[INFO] [stderr]     |                  ^                         ^
[INFO] [stderr]     |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 112 -         com_y /= (self.objects.len() as f64);
[INFO] [stderr] 112 +         com_y /= self.objects.len() as f64;
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]    --> src/physics_engine.rs:115:48
[INFO] [stderr]     |
[INFO] [stderr] 115 |             self.objects[index].position[0] += (250.0 - com_x);
[INFO] [stderr]     |                                                ^             ^
[INFO] [stderr]     |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 115 -             self.objects[index].position[0] += (250.0 - com_x);
[INFO] [stderr] 115 +             self.objects[index].position[0] += 250.0 - com_x;
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]    --> src/physics_engine.rs:116:48
[INFO] [stderr]     |
[INFO] [stderr] 116 |             self.objects[index].position[1] += (250.0 - com_y);
[INFO] [stderr]     |                                                ^             ^
[INFO] [stderr]     |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 116 -             self.objects[index].position[1] += (250.0 - com_y);
[INFO] [stderr] 116 +             self.objects[index].position[1] += 250.0 - com_y;
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `PhysicsObject`
[INFO] [stderr]   --> src/main.rs:18:37
[INFO] [stderr]    |
[INFO] [stderr] 18 | use physics_engine::{PhysicsEngine, PhysicsObject, Gradient};
[INFO] [stderr]    |                                     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `sdl2::pixels::Color`
[INFO] [stderr]  --> src/visualizer.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use sdl2::pixels::Color;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `sdl2::event::Event`
[INFO] [stderr]  --> src/visualizer.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use sdl2::event::Event;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `sdl2::keyboard::Keycode`
[INFO] [stderr]  --> src/visualizer.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use sdl2::keyboard::Keycode;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `sdl2::rect::Point`
[INFO] [stderr]   --> src/visualizer.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 | use sdl2::rect::Point;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/physics_engine.rs:56:13
[INFO] [stderr]    |
[INFO] [stderr] 56 |         let mut accel = [0.0,0.0];
[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/physics_engine.rs:57:13
[INFO] [stderr]    |
[INFO] [stderr] 57 |         let mut naccel = [0.0,0.0];
[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/physics_engine.rs:58:13
[INFO] [stderr]    |
[INFO] [stderr] 58 |         let mut npos = [0.0,0.0];
[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/physics_engine.rs:59:13
[INFO] [stderr]    |
[INFO] [stderr] 59 | ...   let mut po = PhysicsObject{position: pos, veclocity: vel, mass:mass, radius:radius, acceleration:accel, nacceleration:naccel, nposi...
[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/physics_engine.rs:147:13
[INFO] [stderr]     |
[INFO] [stderr] 147 |         let mut vec = Vec::<PhysicsObject>::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]    --> src/physics_engine.rs:149:13
[INFO] [stderr]     |
[INFO] [stderr] 149 |         let mut pe = PhysicsEngine{objects:vec,
[INFO] [stderr]     |             ----^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `px` is never read
[INFO] [stderr]   --> src/visualizer.rs:36:17
[INFO] [stderr]    |
[INFO] [stderr] 36 |         let mut px:f64 = 0.0;
[INFO] [stderr]    |                 ^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `py` is never read
[INFO] [stderr]   --> src/visualizer.rs:37:17
[INFO] [stderr]    |
[INFO] [stderr] 37 |         let mut py:f64 = 0.0;
[INFO] [stderr]    |                 ^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `r` is never read
[INFO] [stderr]   --> src/visualizer.rs:38:17
[INFO] [stderr]    |
[INFO] [stderr] 38 |         let mut r:f64 = 0.0;
[INFO] [stderr]    |                 ^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/visualizer.rs:121:13
[INFO] [stderr]     |
[INFO] [stderr] 121 |         let mut canvas = window.into_canvas()
[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/visualizer.rs:134:13
[INFO] [stderr]     |
[INFO] [stderr] 134 |         let mut visualizer = Visualizer{
[INFO] [stderr]     |             ----^^^^^^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/main.rs:32:9
[INFO] [stderr]    |
[INFO] [stderr] 32 |     for i in 0..50{
[INFO] [stderr]    |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: fields `mass` and `group` are never read
[INFO] [stderr]   --> src/physics_engine.rs:15:9
[INFO] [stderr]    |
[INFO] [stderr] 11 | pub struct PhysicsObject<'a>{
[INFO] [stderr]    |            ------------- fields in this struct
[INFO] [stderr] ...
[INFO] [stderr] 15 |     pub mass: f64,
[INFO] [stderr]    |         ^^^^
[INFO] [stderr] 16 |     pub radius: i32,
[INFO] [stderr] 17 |     pub group: &'a str,
[INFO] [stderr]    |         ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function `func` is never used
[INFO] [stderr]   --> src/physics_engine.rs:27:12
[INFO] [stderr]    |
[INFO] [stderr] 26 | impl Gradient{
[INFO] [stderr]    | ------------- associated function in this implementation
[INFO] [stderr] 27 |     pub fn func(pos: &[f64;2])->[f64;2]{
[INFO] [stderr]    |            ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field `grad` is never read
[INFO] [stderr]   --> src/physics_engine.rs:43:5
[INFO] [stderr]    |
[INFO] [stderr] 40 | pub struct PhysicsEngine<'a>{
[INFO] [stderr]    |            ------------- field in this struct
[INFO] [stderr] ...
[INFO] [stderr] 43 |     grad: Gradient,
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method `update_cell_list` is never used
[INFO] [stderr]   --> src/physics_engine.rs:98:12
[INFO] [stderr]    |
[INFO] [stderr] 54 | impl PhysicsEngine<'_>{
[INFO] [stderr]    | ---------------------- method in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 98 |     pub fn update_cell_list(&mut self){
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: fields `refreshrate`, `sdl_context`, `video_subsystem`, and `ptime` are never read
[INFO] [stderr]   --> src/visualizer.rs:20:5
[INFO] [stderr]    |
[INFO] [stderr] 17 | pub struct Visualizer{
[INFO] [stderr]    |            ---------- fields in this struct
[INFO] [stderr] ...
[INFO] [stderr] 20 |     refreshrate: f64,
[INFO] [stderr]    |     ^^^^^^^^^^^
[INFO] [stderr] 21 |     sdl_context: Sdl,
[INFO] [stderr]    |     ^^^^^^^^^^^
[INFO] [stderr] 22 |     video_subsystem: VideoSubsystem,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 28 |     ptime: u128,
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> src/visualizer.rs:94:9
[INFO] [stderr]    |
[INFO] [stderr] 94 |         self.texture.update(None, &self.pixels, self.width*3);
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]    |
[INFO] [stderr] 94 |         let _ = self.texture.update(None, &self.pixels, self.width*3);
[INFO] [stderr]    |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: `graphics` (bin "graphics" test) generated 39 warnings (run `cargo fix --bin "graphics" --tests` to apply 29 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/graphics-702e250b3db6a814)
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "60a4a896957bbca8d1d7d9ec3f7a799660277ce976066d89b859a2f55c0a2119", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "60a4a896957bbca8d1d7d9ec3f7a799660277ce976066d89b859a2f55c0a2119", kill_on_drop: false }`
[INFO] [stdout] 60a4a896957bbca8d1d7d9ec3f7a799660277ce976066d89b859a2f55c0a2119
