Dec 04 15:00:30.713 INFO checking loovjo/neat-driver against master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc for pr-56481
Dec 04 15:00:30.713 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-2/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/pr-56481/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +c8ae2de8363be088604ffa2ccba84ff7ad7250bc-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 04 15:00:31.337 INFO [stdout] 2a65fbee68fb61caa12b5a325304395e23fb6b0a08ec90be5e942eb9582f86c4
Dec 04 15:00:31.341 INFO running `"docker" "start" "-a" "2a65fbee68fb61caa12b5a325304395e23fb6b0a08ec90be5e942eb9582f86c4"`
Dec 04 15:00:33.029 INFO [stderr] usermod: no changes
Dec 04 15:00:33.186 INFO [stderr]    Compiling proc-macro2 v0.4.23
Dec 04 15:00:33.191 INFO [stderr]    Compiling sdl2-sys v0.31.0
Dec 04 15:00:33.191 INFO [stderr]     Checking phf_shared v0.7.23
Dec 04 15:00:33.191 INFO [stderr]     Checking crossbeam-epoch v0.3.1
Dec 04 15:00:33.213 INFO [stderr]    Compiling phf_codegen v0.7.23
Dec 04 15:00:33.214 INFO [stderr]     Checking png v0.12.0
Dec 04 15:00:35.501 INFO [stderr]     Checking phf v0.7.23
Dec 04 15:00:36.631 INFO [stderr]    Compiling palette v0.4.1
Dec 04 15:00:37.408 INFO [stderr]     Checking crossbeam-deque v0.2.0
Dec 04 15:00:39.785 INFO [stderr]     Checking rayon-core v1.4.1
Dec 04 15:00:45.482 INFO [stderr]     Checking rayon v1.0.3
Dec 04 15:00:45.920 INFO [stderr]    Compiling quote v0.6.10
Dec 04 15:00:46.576 INFO [stderr]     Checking sdl2 v0.31.0
Dec 04 15:00:48.351 INFO [stderr]    Compiling syn v0.14.9
Dec 04 15:00:48.351 INFO [stderr]    Compiling syn v0.15.20
Dec 04 15:00:59.437 INFO [stderr]     Checking ytesrev v0.2.4
Dec 04 15:01:10.825 INFO [stderr]    Compiling serde_derive v1.0.80
Dec 04 15:01:16.589 INFO [stderr]    Compiling palette_derive v0.4.1
Dec 04 15:01:38.251 INFO [stderr]     Checking NEAT-Pong v0.1.0 (/source)
Dec 04 15:01:40.303 INFO [stderr] warning: unused import: `std::mem::replace`
Dec 04 15:01:40.303 INFO [stderr]  --> src/main.rs:5:5
Dec 04 15:01:40.303 INFO [stderr]   |
Dec 04 15:01:40.303 INFO [stderr] 5 | use std::mem::replace;
Dec 04 15:01:40.303 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^
Dec 04 15:01:40.303 INFO [stderr]   |
Dec 04 15:01:40.303 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 04 15:01:40.303 INFO [stderr] 
Dec 04 15:01:40.303 INFO [stderr] warning: unused import: `std::fs::File`
Dec 04 15:01:40.303 INFO [stderr]  --> src/game.rs:1:5
Dec 04 15:01:40.303 INFO [stderr]   |
Dec 04 15:01:40.303 INFO [stderr] 1 | use std::fs::File;
Dec 04 15:01:40.303 INFO [stderr]   |     ^^^^^^^^^^^^^
Dec 04 15:01:40.303 INFO [stderr] 
Dec 04 15:01:40.315 INFO [stderr] warning: unused import: `std::mem::replace`
Dec 04 15:01:40.315 INFO [stderr]  --> src/main.rs:5:5
Dec 04 15:01:40.315 INFO [stderr]   |
Dec 04 15:01:40.315 INFO [stderr] 5 | use std::mem::replace;
Dec 04 15:01:40.315 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^
Dec 04 15:01:40.315 INFO [stderr]   |
Dec 04 15:01:40.315 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 04 15:01:40.315 INFO [stderr] 
Dec 04 15:01:40.315 INFO [stderr] warning: unused import: `std::fs::File`
Dec 04 15:01:40.315 INFO [stderr]  --> src/game.rs:1:5
Dec 04 15:01:40.315 INFO [stderr]   |
Dec 04 15:01:40.315 INFO [stderr] 1 | use std::fs::File;
Dec 04 15:01:40.315 INFO [stderr]   |     ^^^^^^^^^^^^^
Dec 04 15:01:40.315 INFO [stderr] 
Dec 04 15:01:40.815 INFO [stderr] warning: unreachable pattern
Dec 04 15:01:40.815 INFO [stderr]    --> src/game.rs:101:13
Dec 04 15:01:40.815 INFO [stderr]     |
Dec 04 15:01:40.815 INFO [stderr] 101 |             _ => {}
Dec 04 15:01:40.815 INFO [stderr]     |             ^
Dec 04 15:01:40.815 INFO [stderr]     |
Dec 04 15:01:40.815 INFO [stderr]     = note: #[warn(unreachable_patterns)] on by default
Dec 04 15:01:40.815 INFO [stderr] 
Dec 04 15:01:40.818 INFO [stderr] warning: unreachable pattern
Dec 04 15:01:40.818 INFO [stderr]    --> src/game.rs:101:13
Dec 04 15:01:40.818 INFO [stderr]     |
Dec 04 15:01:40.818 INFO [stderr] 101 |             _ => {}
Dec 04 15:01:40.818 INFO [stderr]     |             ^
Dec 04 15:01:40.818 INFO [stderr]     |
Dec 04 15:01:40.818 INFO [stderr]     = note: #[warn(unreachable_patterns)] on by default
Dec 04 15:01:40.818 INFO [stderr] 
Dec 04 15:01:40.818 INFO [stderr] warning: unused variable: `sat_shift`
Dec 04 15:01:40.818 INFO [stderr]   --> src/car_textures.rs:42:49
Dec 04 15:01:40.819 INFO [stderr]    |
Dec 04 15:01:40.819 INFO [stderr] 42 | pub fn shift_hue(im: &PngImage, hue_shift: f32, sat_shift: f32) -> PngImage {
Dec 04 15:01:40.819 INFO [stderr]    |                                                 ^^^^^^^^^ help: consider using `_sat_shift` instead
Dec 04 15:01:40.819 INFO [stderr]    |
Dec 04 15:01:40.819 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 04 15:01:40.819 INFO [stderr] 
Dec 04 15:01:40.819 INFO [stderr] warning: unused variable: `ind`
Dec 04 15:01:40.819 INFO [stderr]    --> src/neat.rs:356:14
Dec 04 15:01:40.819 INFO [stderr]     |
Dec 04 15:01:40.819 INFO [stderr] 356 |         for (ind, idx) in x {
Dec 04 15:01:40.819 INFO [stderr]     |              ^^^ help: consider using `_ind` instead
Dec 04 15:01:40.819 INFO [stderr] 
Dec 04 15:01:40.819 INFO [stderr] warning: unused variable: `sp`
Dec 04 15:01:40.819 INFO [stderr]    --> src/neat.rs:380:13
Dec 04 15:01:40.819 INFO [stderr]     |
Dec 04 15:01:40.819 INFO [stderr] 380 |     for (i, sp) in species.iter().enumerate() {
Dec 04 15:01:40.819 INFO [stderr]     |             ^^ help: consider using `_sp` instead
Dec 04 15:01:40.819 INFO [stderr] 
Dec 04 15:01:40.819 INFO [stderr] warning: unused variable: `i`
Dec 04 15:01:40.819 INFO [stderr]    --> src/neat.rs:417:13
Dec 04 15:01:40.819 INFO [stderr]     |
Dec 04 15:01:40.819 INFO [stderr] 417 |         for i in 0..num_offspring {
Dec 04 15:01:40.819 INFO [stderr]     |             ^ help: consider using `_i` instead
Dec 04 15:01:40.819 INFO [stderr] 
Dec 04 15:01:40.819 INFO [stderr] warning: unused variable: `i`
Dec 04 15:01:40.819 INFO [stderr]   --> src/main.rs:57:13
Dec 04 15:01:40.819 INFO [stderr]    |
Dec 04 15:01:40.819 INFO [stderr] 57 |         for i in 0..POP_SIZE {
Dec 04 15:01:40.819 INFO [stderr]    |             ^ help: consider using `_i` instead
Dec 04 15:01:40.819 INFO [stderr] 
Dec 04 15:01:40.819 INFO [stderr] warning: unused variable: `settings`
Dec 04 15:01:40.819 INFO [stderr]    --> src/game.rs:138:70
Dec 04 15:01:40.819 INFO [stderr]     |
Dec 04 15:01:40.819 INFO [stderr] 138 |     fn draw(&self, canvas: &mut Canvas<Window>, position: &Position, settings: DrawSettings) {
Dec 04 15:01:40.819 INFO [stderr]     |                                                                      ^^^^^^^^ help: consider using `_settings` instead
Dec 04 15:01:40.819 INFO [stderr] 
Dec 04 15:01:40.819 INFO [stderr] warning: unused variable: `sat_shift`
Dec 04 15:01:40.819 INFO [stderr]   --> src/car_textures.rs:42:49
Dec 04 15:01:40.819 INFO [stderr]    |
Dec 04 15:01:40.819 INFO [stderr] 42 | pub fn shift_hue(im: &PngImage, hue_shift: f32, sat_shift: f32) -> PngImage {
Dec 04 15:01:40.819 INFO [stderr]    |                                                 ^^^^^^^^^ help: consider using `_sat_shift` instead
Dec 04 15:01:40.819 INFO [stderr]    |
Dec 04 15:01:40.819 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 04 15:01:40.819 INFO [stderr] 
Dec 04 15:01:40.827 INFO [stderr] warning: unused variable: `ind`
Dec 04 15:01:40.827 INFO [stderr]    --> src/neat.rs:356:14
Dec 04 15:01:40.827 INFO [stderr]     |
Dec 04 15:01:40.827 INFO [stderr] 356 |         for (ind, idx) in x {
Dec 04 15:01:40.827 INFO [stderr]     |              ^^^ help: consider using `_ind` instead
Dec 04 15:01:40.827 INFO [stderr] warning: unused variable: `a`
Dec 04 15:01:40.827 INFO [stderr]   --> src/map.rs:24:21
Dec 04 15:01:40.827 INFO [stderr]    |
Dec 04 15:01:40.827 INFO [stderr] 24 |                 let a = image.data[4 * idx + 3];
Dec 04 15:01:40.827 INFO [stderr]    |                     ^ help: consider using `_a` instead
Dec 04 15:01:40.827 INFO [stderr] 
Dec 04 15:01:40.827 INFO [stderr] 
Dec 04 15:01:40.827 INFO [stderr] warning: unused variable: `sp`
Dec 04 15:01:40.827 INFO [stderr]    --> src/neat.rs:380:13
Dec 04 15:01:40.827 INFO [stderr]     |
Dec 04 15:01:40.827 INFO [stderr] 380 |     for (i, sp) in species.iter().enumerate() {
Dec 04 15:01:40.827 INFO [stderr]     |             ^^ help: consider using `_sp` instead
Dec 04 15:01:40.827 INFO [stderr] 
Dec 04 15:01:40.827 INFO [stderr] warning: unused variable: `i`
Dec 04 15:01:40.827 INFO [stderr]    --> src/neat.rs:417:13
Dec 04 15:01:40.827 INFO [stderr]     |
Dec 04 15:01:40.827 INFO [stderr] 417 |         for i in 0..num_offspring {
Dec 04 15:01:40.827 INFO [stderr]     |             ^ help: consider using `_i` instead
Dec 04 15:01:40.827 INFO [stderr] 
Dec 04 15:01:40.827 INFO [stderr] warning: unused variable: `i`
Dec 04 15:01:40.827 INFO [stderr]    --> src/neat.rs:179:21
Dec 04 15:01:40.827 INFO [stderr]     |
Dec 04 15:01:40.827 INFO [stderr] 179 |         'outer: for i in 0..40 {
Dec 04 15:01:40.827 INFO [stderr]     |                     ^ help: consider using `_i` instead
Dec 04 15:01:40.827 INFO [stderr] 
Dec 04 15:01:40.827 INFO [stderr] warning: unused variable: `i`
Dec 04 15:01:40.827 INFO [stderr]   --> src/main.rs:57:13
Dec 04 15:01:40.827 INFO [stderr]    |
Dec 04 15:01:40.827 INFO [stderr] 57 |         for i in 0..POP_SIZE {
Dec 04 15:01:40.827 INFO [stderr]    |             ^ help: consider using `_i` instead
Dec 04 15:01:40.827 INFO [stderr] 
Dec 04 15:01:40.827 INFO [stderr] warning: unused variable: `i`
Dec 04 15:01:40.827 INFO [stderr]    --> src/main.rs:176:13
Dec 04 15:01:40.827 INFO [stderr]     |
Dec 04 15:01:40.827 INFO [stderr] 176 |         for i in 0..self.speed_mult {
Dec 04 15:01:40.827 INFO [stderr]     |             ^ help: consider using `_i` instead
Dec 04 15:01:40.827 INFO [stderr] warning: unused variable: `settings`
Dec 04 15:01:40.827 INFO [stderr]    --> src/game.rs:138:70
Dec 04 15:01:40.827 INFO [stderr]     |
Dec 04 15:01:40.827 INFO [stderr] 138 |     fn draw(&self, canvas: &mut Canvas<Window>, position: &Position, settings: DrawSettings) {
Dec 04 15:01:40.827 INFO [stderr]     |                                                                      ^^^^^^^^ help: consider using `_settings` instead
Dec 04 15:01:40.827 INFO [stderr] 
Dec 04 15:01:40.827 INFO [stderr] 
Dec 04 15:01:40.827 INFO [stderr] warning: unused variable: `a`
Dec 04 15:01:40.827 INFO [stderr]   --> src/map.rs:24:21
Dec 04 15:01:40.827 INFO [stderr]    |
Dec 04 15:01:40.827 INFO [stderr] 24 |                 let a = image.data[4 * idx + 3];
Dec 04 15:01:40.827 INFO [stderr]    |                     ^ help: consider using `_a` instead
Dec 04 15:01:40.827 INFO [stderr] 
Dec 04 15:01:40.827 INFO [stderr] warning: unused variable: `i`
Dec 04 15:01:40.827 INFO [stderr]    --> src/neat.rs:179:21
Dec 04 15:01:40.827 INFO [stderr]     |
Dec 04 15:01:40.827 INFO [stderr] 179 |         'outer: for i in 0..40 {
Dec 04 15:01:40.828 INFO [stderr]     |                     ^ help: consider using `_i` instead
Dec 04 15:01:40.828 INFO [stderr] 
Dec 04 15:01:40.828 INFO [stderr] warning: unused variable: `i`
Dec 04 15:01:40.828 INFO [stderr]    --> src/main.rs:176:13
Dec 04 15:01:40.828 INFO [stderr]     |
Dec 04 15:01:40.828 INFO [stderr] 176 |         for i in 0..self.speed_mult {
Dec 04 15:01:40.828 INFO [stderr]     |             ^ help: consider using `_i` instead
Dec 04 15:01:40.828 INFO [stderr] 
Dec 04 15:01:40.867 INFO [stderr] warning: variable does not need to be mutable
Dec 04 15:01:40.867 INFO [stderr]    --> src/main.rs:271:13
Dec 04 15:01:40.867 INFO [stderr]     |
Dec 04 15:01:40.867 INFO [stderr] 271 |         let mut file = File::create(SAVE_PATH).unwrap();
Dec 04 15:01:40.867 INFO [stderr]     |             ----^^^^
Dec 04 15:01:40.867 INFO [stderr]     |             |
Dec 04 15:01:40.867 INFO [stderr]     |             help: remove this `mut`
Dec 04 15:01:40.867 INFO [stderr]     |
Dec 04 15:01:40.867 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 04 15:01:40.867 INFO [stderr] 
Dec 04 15:01:40.883 INFO [stderr] warning: variable does not need to be mutable
Dec 04 15:01:40.883 INFO [stderr]    --> src/main.rs:271:13
Dec 04 15:01:40.883 INFO [stderr]     |
Dec 04 15:01:40.883 INFO [stderr] 271 |         let mut file = File::create(SAVE_PATH).unwrap();
Dec 04 15:01:40.883 INFO [stderr]     |             ----^^^^
Dec 04 15:01:40.883 INFO [stderr]     |             |
Dec 04 15:01:40.883 INFO [stderr]     |             help: remove this `mut`
Dec 04 15:01:40.883 INFO [stderr]     |
Dec 04 15:01:40.883 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 04 15:01:40.883 INFO [stderr] 
Dec 04 15:01:41.023 INFO [stderr] warning: field is never used: `showing`
Dec 04 15:01:41.023 INFO [stderr]    --> src/main.rs:103:5
Dec 04 15:01:41.023 INFO [stderr]     |
Dec 04 15:01:41.023 INFO [stderr] 103 |     showing: Option<Vec<usize>>,
Dec 04 15:01:41.023 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 15:01:41.023 INFO [stderr]     |
Dec 04 15:01:41.023 INFO [stderr]     = note: #[warn(dead_code)] on by default
Dec 04 15:01:41.023 INFO [stderr] 
Dec 04 15:01:41.023 INFO [stderr] warning: crate `NEAT_Pong` should have a snake case name such as `neat_pong`
Dec 04 15:01:41.023 INFO [stderr]   |
Dec 04 15:01:41.023 INFO [stderr]   = note: #[warn(non_snake_case)] on by default
Dec 04 15:01:41.023 INFO [stderr] 
Dec 04 15:01:41.027 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 15:01:41.027 INFO [stderr]    --> src/game.rs:194:9
Dec 04 15:01:41.027 INFO [stderr]     |
Dec 04 15:01:41.027 INFO [stderr] 194 |         texture.update(None, car_texture.data.as_slice(), 4 * car_texture.width);
Dec 04 15:01:41.027 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 15:01:41.027 INFO [stderr]     |
Dec 04 15:01:41.027 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 04 15:01:41.027 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 15:01:41.027 INFO [stderr] 
Dec 04 15:01:41.031 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 15:01:41.031 INFO [stderr]    --> src/neat.rs:263:9
Dec 04 15:01:41.031 INFO [stderr]     |
Dec 04 15:01:41.031 INFO [stderr] 263 |         write!(f, "{}", sres);
Dec 04 15:01:41.031 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^
Dec 04 15:01:41.031 INFO [stderr]     |
Dec 04 15:01:41.031 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 15:01:41.031 INFO [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Dec 04 15:01:41.031 INFO [stderr] 
Dec 04 15:01:41.031 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 15:01:41.031 INFO [stderr]    --> src/neat.rs:265:9
Dec 04 15:01:41.031 INFO [stderr]     |
Dec 04 15:01:41.031 INFO [stderr] 265 | /         Command::new("dot")
Dec 04 15:01:41.031 INFO [stderr] 266 | |             .arg("-Tsvg")
Dec 04 15:01:41.031 INFO [stderr] 267 | |             .arg(path)
Dec 04 15:01:41.031 INFO [stderr] 268 | |             .arg("-o")
Dec 04 15:01:41.031 INFO [stderr] 269 | |             .arg(format!("/tmp/graphs/{}.svg", name))
Dec 04 15:01:41.031 INFO [stderr] 270 | |             .output();
Dec 04 15:01:41.031 INFO [stderr]     | |______________________^
Dec 04 15:01:41.031 INFO [stderr]     |
Dec 04 15:01:41.031 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 15:01:41.031 INFO [stderr] 
Dec 04 15:01:41.043 INFO [stderr] warning: field is never used: `showing`
Dec 04 15:01:41.043 INFO [stderr]    --> src/main.rs:103:5
Dec 04 15:01:41.043 INFO [stderr]     |
Dec 04 15:01:41.043 INFO [stderr] 103 |     showing: Option<Vec<usize>>,
Dec 04 15:01:41.043 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 15:01:41.043 INFO [stderr]     |
Dec 04 15:01:41.043 INFO [stderr]     = note: #[warn(dead_code)] on by default
Dec 04 15:01:41.043 INFO [stderr] 
Dec 04 15:01:41.043 INFO [stderr] warning: crate `NEAT_Pong` should have a snake case name such as `neat_pong`
Dec 04 15:01:41.043 INFO [stderr]   |
Dec 04 15:01:41.043 INFO [stderr]   = note: #[warn(non_snake_case)] on by default
Dec 04 15:01:41.043 INFO [stderr] 
Dec 04 15:01:41.043 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 15:01:41.043 INFO [stderr]    --> src/game.rs:194:9
Dec 04 15:01:41.043 INFO [stderr]     |
Dec 04 15:01:41.043 INFO [stderr] 194 |         texture.update(None, car_texture.data.as_slice(), 4 * car_texture.width);
Dec 04 15:01:41.043 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 15:01:41.043 INFO [stderr]     |
Dec 04 15:01:41.043 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 04 15:01:41.043 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 15:01:41.043 INFO [stderr] 
Dec 04 15:01:41.049 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 15:01:41.049 INFO [stderr]    --> src/neat.rs:263:9
Dec 04 15:01:41.049 INFO [stderr]     |
Dec 04 15:01:41.049 INFO [stderr] 263 |         write!(f, "{}", sres);
Dec 04 15:01:41.049 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^
Dec 04 15:01:41.049 INFO [stderr]     |
Dec 04 15:01:41.049 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 15:01:41.049 INFO [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Dec 04 15:01:41.049 INFO [stderr] 
Dec 04 15:01:41.049 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 15:01:41.049 INFO [stderr]    --> src/neat.rs:265:9
Dec 04 15:01:41.049 INFO [stderr]     |
Dec 04 15:01:41.049 INFO [stderr] 265 | /         Command::new("dot")
Dec 04 15:01:41.049 INFO [stderr] 266 | |             .arg("-Tsvg")
Dec 04 15:01:41.049 INFO [stderr] 267 | |             .arg(path)
Dec 04 15:01:41.049 INFO [stderr] 268 | |             .arg("-o")
Dec 04 15:01:41.049 INFO [stderr] 269 | |             .arg(format!("/tmp/graphs/{}.svg", name))
Dec 04 15:01:41.049 INFO [stderr] 270 | |             .output();
Dec 04 15:01:41.049 INFO [stderr]     | |______________________^
Dec 04 15:01:41.049 INFO [stderr]     |
Dec 04 15:01:41.049 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 15:01:41.049 INFO [stderr] 
Dec 04 15:01:41.071 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 08s
Dec 04 15:01:41.079 INFO [stderr] su: No module specific data is present
Dec 04 15:01:41.872 INFO running `"docker" "inspect" "2a65fbee68fb61caa12b5a325304395e23fb6b0a08ec90be5e942eb9582f86c4"`
Dec 04 15:01:42.223 INFO running `"docker" "rm" "-f" "2a65fbee68fb61caa12b5a325304395e23fb6b0a08ec90be5e942eb9582f86c4"`
Dec 04 15:01:42.616 INFO [stdout] 2a65fbee68fb61caa12b5a325304395e23fb6b0a08ec90be5e942eb9582f86c4