[INFO] cloning repository https://github.com/Charlsyy/gameoflife
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Charlsyy/gameoflife" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCharlsyy%2Fgameoflife", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCharlsyy%2Fgameoflife'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7a9960be9128ceccf1d48520502059fb26adc6b8
[INFO] testing Charlsyy/gameoflife against 1.59.0 for beta-1.60-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCharlsyy%2Fgameoflife" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Charlsyy/gameoflife on toolchain 1.59.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Charlsyy/gameoflife
[INFO] finished tweaking git repo https://github.com/Charlsyy/gameoflife
[INFO] tweaked toml for git repo https://github.com/Charlsyy/gameoflife written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/Charlsyy/gameoflife already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded glib-sys v0.5.0
[INFO] [stderr]   Downloaded gio-sys v0.5.0
[INFO] [stderr]   Downloaded gdk-pixbuf v0.3.0
[INFO] [stderr]   Downloaded c_vec v1.2.1
[INFO] [stderr]   Downloaded cairo-rs v0.3.0
[INFO] [stderr]   Downloaded pango v0.3.0
[INFO] [stderr]   Downloaded atk-sys v0.5.0
[INFO] [stderr]   Downloaded gobject-sys v0.5.0
[INFO] [stderr]   Downloaded gdk-pixbuf-sys v0.5.0
[INFO] [stderr]   Downloaded glib v0.4.1
[INFO] [stderr]   Downloaded cairo-sys-rs v0.5.0
[INFO] [stderr]   Downloaded gdk-sys v0.5.0
[INFO] [stderr]   Downloaded gtk-sys v0.5.0
[INFO] [stderr]   Downloaded gdk v0.7.0
[INFO] [stderr]   Downloaded gio v0.3.0
[INFO] [stderr]   Downloaded gtk v0.3.0
[INFO] [stderr]   Downloaded pango-sys v0.5.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e9ae2d7bc5c1530dca8741daab4414f1c288763ba272687c837300063cae6ae0
[INFO] running `Command { std: "docker" "start" "-a" "e9ae2d7bc5c1530dca8741daab4414f1c288763ba272687c837300063cae6ae0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e9ae2d7bc5c1530dca8741daab4414f1c288763ba272687c837300063cae6ae0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e9ae2d7bc5c1530dca8741daab4414f1c288763ba272687c837300063cae6ae0", kill_on_drop: false }`
[INFO] [stdout] e9ae2d7bc5c1530dca8741daab4414f1c288763ba272687c837300063cae6ae0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bcefaa713f001ed419b3c698f5df31984fed3552ebec5580de5da01b3030d1a3
[INFO] running `Command { std: "docker" "start" "-a" "bcefaa713f001ed419b3c698f5df31984fed3552ebec5580de5da01b3030d1a3", kill_on_drop: false }`
[INFO] [stderr]    Compiling pkg-config v0.3.11
[INFO] [stderr]    Compiling libc v0.2.41
[INFO] [stderr]    Compiling bitflags v1.0.3
[INFO] [stderr]    Compiling lazy_static v1.0.1
[INFO] [stderr]    Compiling cairo-rs v0.3.0
[INFO] [stderr]    Compiling gdk-pixbuf v0.3.0
[INFO] [stderr]    Compiling gio v0.3.0
[INFO] [stderr]    Compiling c_vec v1.2.1
[INFO] [stderr]    Compiling gdk v0.7.0
[INFO] [stderr]    Compiling gtk v0.3.0
[INFO] [stderr]    Compiling rustc-serialize v0.3.24
[INFO] [stderr]    Compiling glib-sys v0.5.0
[INFO] [stderr]    Compiling gobject-sys v0.5.0
[INFO] [stderr]    Compiling gio-sys v0.5.0
[INFO] [stderr]    Compiling gdk-pixbuf-sys v0.5.0
[INFO] [stderr]    Compiling cairo-sys-rs v0.5.0
[INFO] [stderr]    Compiling pango-sys v0.5.0
[INFO] [stderr]    Compiling gdk-sys v0.5.0
[INFO] [stderr]    Compiling atk-sys v0.5.0
[INFO] [stderr]    Compiling gtk-sys v0.5.0
[INFO] [stderr]    Compiling glib v0.4.1
[INFO] [stderr]    Compiling pango v0.3.0
[INFO] [stderr]    Compiling gameoflife v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Json`, `ToJson`, `self`
[INFO] [stdout]  --> src/main.rs:6:29
[INFO] [stdout]   |
[INFO] [stdout] 6 | use rustc_serialize::json::{self, Json, ToJson};
[INFO] [stdout]   |                             ^^^^  ^^^^  ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fs`
[INFO] [stdout]  --> src/main.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::fs;
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `OpenOptions`
[INFO] [stdout]  --> src/main.rs:8:21
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::fs::{File, OpenOptions};
[INFO] [stdout]   |                     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `stdin`, `stdout`
[INFO] [stdout]   --> src/main.rs:10:15
[INFO] [stdout]    |
[INFO] [stdout] 10 | use std::io::{stdin, stdout, Write};
[INFO] [stdout]    |               ^^^^^  ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `thread`, `time`
[INFO] [stdout]   --> src/main.rs:11:11
[INFO] [stdout]    |
[INFO] [stdout] 11 | use std::{thread, time};
[INFO] [stdout]    |           ^^^^^^  ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io::prelude::*`
[INFO] [stdout]   --> src/main.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | use std::io::prelude::*;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `gtk::traits::*`
[INFO] [stdout]   --> src/main.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 | use gtk::traits::*;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `gdk::RGBA`
[INFO] [stdout]   --> src/main.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 | use gdk::RGBA;
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::thread::sleep`
[INFO] [stdout]   --> src/main.rs:27:5
[INFO] [stdout]    |
[INFO] [stdout] 27 | use std::thread::sleep;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/main.rs:103:12
[INFO] [stdout]     |
[INFO] [stdout] 103 |         if (instant.elapsed() >= one_sec){
[INFO] [stdout]     |            ^                            ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 103 -         if (instant.elapsed() >= one_sec){
[INFO] [stdout] 103 +         if instant.elapsed() >= one_sec {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around method argument
[INFO] [stdout]    --> src/main.rs:161:55
[INFO] [stdout]     |
[INFO] [stdout] 161 |                 main_container.attach(&buttons[i][k], (i as i32), ((k) as i32), 1, 1);
[INFO] [stdout]     |                                                       ^        ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 161 -                 main_container.attach(&buttons[i][k], (i as i32), ((k) as i32), 1, 1);
[INFO] [stdout] 161 +                 main_container.attach(&buttons[i][k], i as i32, ((k) as i32), 1, 1);
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around method argument
[INFO] [stdout]    --> src/main.rs:161:67
[INFO] [stdout]     |
[INFO] [stdout] 161 |                 main_container.attach(&buttons[i][k], (i as i32), ((k) as i32), 1, 1);
[INFO] [stdout]     |                                                                   ^          ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 161 -                 main_container.attach(&buttons[i][k], (i as i32), ((k) as i32), 1, 1);
[INFO] [stdout] 161 +                 main_container.attach(&buttons[i][k], (i as i32), (k) as i32, 1, 1);
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: crate-level attribute should be an inner attribute: add an exclamation mark: `#![foo]`
[INFO] [stdout]   --> src/main.rs:60:5
[INFO] [stdout]    |
[INFO] [stdout] 60 |     #[feature(type_ascription)]
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_attributes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:83:9
[INFO] [stdout]    |
[INFO] [stdout] 83 |     let mut actives = vec![vec![false;HEIGHT];WIDTH];
[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: field is never read: `header`
[INFO] [stdout]   --> src/main.rs:55:5
[INFO] [stdout]    |
[INFO] [stdout] 55 |     pub header: Header,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `echo`
[INFO] [stdout]    --> src/main.rs:212:4
[INFO] [stdout]     |
[INFO] [stdout] 212 | fn echo(s: &str, path: &Path) -> io::Result<()> {
[INFO] [stdout]     |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 16 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 42.73s
[INFO] running `Command { std: "docker" "inspect" "bcefaa713f001ed419b3c698f5df31984fed3552ebec5580de5da01b3030d1a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bcefaa713f001ed419b3c698f5df31984fed3552ebec5580de5da01b3030d1a3", kill_on_drop: false }`
[INFO] [stdout] bcefaa713f001ed419b3c698f5df31984fed3552ebec5580de5da01b3030d1a3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 836b97775755162adcf8fb9604e40c2ce411bf60f321de0d3a2a5b26b19229c8
[INFO] running `Command { std: "docker" "start" "-a" "836b97775755162adcf8fb9604e40c2ce411bf60f321de0d3a2a5b26b19229c8", kill_on_drop: false }`
[INFO] [stderr]    Compiling gameoflife v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Json`, `ToJson`, `self`
[INFO] [stdout]  --> src/main.rs:6:29
[INFO] [stdout]   |
[INFO] [stdout] 6 | use rustc_serialize::json::{self, Json, ToJson};
[INFO] [stdout]   |                             ^^^^  ^^^^  ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fs`
[INFO] [stdout]  --> src/main.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::fs;
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `OpenOptions`
[INFO] [stdout]  --> src/main.rs:8:21
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::fs::{File, OpenOptions};
[INFO] [stdout]   |                     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `stdin`, `stdout`
[INFO] [stdout]   --> src/main.rs:10:15
[INFO] [stdout]    |
[INFO] [stdout] 10 | use std::io::{stdin, stdout, Write};
[INFO] [stdout]    |               ^^^^^  ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `thread`, `time`
[INFO] [stdout]   --> src/main.rs:11:11
[INFO] [stdout]    |
[INFO] [stdout] 11 | use std::{thread, time};
[INFO] [stdout]    |           ^^^^^^  ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io::prelude::*`
[INFO] [stdout]   --> src/main.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | use std::io::prelude::*;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `gtk::traits::*`
[INFO] [stdout]   --> src/main.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 | use gtk::traits::*;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `gdk::RGBA`
[INFO] [stdout]   --> src/main.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 | use gdk::RGBA;
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::thread::sleep`
[INFO] [stdout]   --> src/main.rs:27:5
[INFO] [stdout]    |
[INFO] [stdout] 27 | use std::thread::sleep;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/main.rs:103:12
[INFO] [stdout]     |
[INFO] [stdout] 103 |         if (instant.elapsed() >= one_sec){
[INFO] [stdout]     |            ^                            ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 103 -         if (instant.elapsed() >= one_sec){
[INFO] [stdout] 103 +         if instant.elapsed() >= one_sec {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around method argument
[INFO] [stdout]    --> src/main.rs:161:55
[INFO] [stdout]     |
[INFO] [stdout] 161 |                 main_container.attach(&buttons[i][k], (i as i32), ((k) as i32), 1, 1);
[INFO] [stdout]     |                                                       ^        ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 161 -                 main_container.attach(&buttons[i][k], (i as i32), ((k) as i32), 1, 1);
[INFO] [stdout] 161 +                 main_container.attach(&buttons[i][k], i as i32, ((k) as i32), 1, 1);
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around method argument
[INFO] [stdout]    --> src/main.rs:161:67
[INFO] [stdout]     |
[INFO] [stdout] 161 |                 main_container.attach(&buttons[i][k], (i as i32), ((k) as i32), 1, 1);
[INFO] [stdout]     |                                                                   ^          ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 161 -                 main_container.attach(&buttons[i][k], (i as i32), ((k) as i32), 1, 1);
[INFO] [stdout] 161 +                 main_container.attach(&buttons[i][k], (i as i32), (k) as i32, 1, 1);
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: crate-level attribute should be an inner attribute: add an exclamation mark: `#![foo]`
[INFO] [stdout]   --> src/main.rs:60:5
[INFO] [stdout]    |
[INFO] [stdout] 60 |     #[feature(type_ascription)]
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_attributes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:83:9
[INFO] [stdout]    |
[INFO] [stdout] 83 |     let mut actives = vec![vec![false;HEIGHT];WIDTH];
[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: field is never read: `header`
[INFO] [stdout]   --> src/main.rs:55:5
[INFO] [stdout]    |
[INFO] [stdout] 55 |     pub header: Header,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `echo`
[INFO] [stdout]    --> src/main.rs:212:4
[INFO] [stdout]     |
[INFO] [stdout] 212 | fn echo(s: &str, path: &Path) -> io::Result<()> {
[INFO] [stdout]     |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 16 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.81s
[INFO] running `Command { std: "docker" "inspect" "836b97775755162adcf8fb9604e40c2ce411bf60f321de0d3a2a5b26b19229c8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "836b97775755162adcf8fb9604e40c2ce411bf60f321de0d3a2a5b26b19229c8", kill_on_drop: false }`
[INFO] [stdout] 836b97775755162adcf8fb9604e40c2ce411bf60f321de0d3a2a5b26b19229c8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 44f4793f6980980e7a08115c808b326b7005ced4a1d613e149303b6017150fb7
[INFO] running `Command { std: "docker" "start" "-a" "44f4793f6980980e7a08115c808b326b7005ced4a1d613e149303b6017150fb7", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: unused imports: `Json`, `ToJson`, `self`
[INFO] [stdout] running 0 tests
[INFO] [stderr]  --> src/main.rs:6:29
[INFO] [stdout] 
[INFO] [stderr]   |
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr] 6 | use rustc_serialize::json::{self, Json, ToJson};
[INFO] [stdout] 
[INFO] [stderr]   |                             ^^^^  ^^^^  ^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::fs`
[INFO] [stderr]  --> src/main.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use std::fs;
[INFO] [stderr]   |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `OpenOptions`
[INFO] [stderr]  --> src/main.rs:8:21
[INFO] [stderr]   |
[INFO] [stderr] 8 | use std::fs::{File, OpenOptions};
[INFO] [stderr]   |                     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `stdin`, `stdout`
[INFO] [stderr]   --> src/main.rs:10:15
[INFO] [stderr]    |
[INFO] [stderr] 10 | use std::io::{stdin, stdout, Write};
[INFO] [stderr]    |               ^^^^^  ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `thread`, `time`
[INFO] [stderr]   --> src/main.rs:11:11
[INFO] [stderr]    |
[INFO] [stderr] 11 | use std::{thread, time};
[INFO] [stderr]    |           ^^^^^^  ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::io::prelude::*`
[INFO] [stderr]   --> src/main.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 | use std::io::prelude::*;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `gtk::traits::*`
[INFO] [stderr]   --> src/main.rs:19:5
[INFO] [stderr]    |
[INFO] [stderr] 19 | use gtk::traits::*;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `gdk::RGBA`
[INFO] [stderr]   --> src/main.rs:20:5
[INFO] [stderr]    |
[INFO] [stderr] 20 | use gdk::RGBA;
[INFO] [stderr]    |     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::thread::sleep`
[INFO] [stderr]   --> src/main.rs:27:5
[INFO] [stderr]    |
[INFO] [stderr] 27 | use std::thread::sleep;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]    --> src/main.rs:103:12
[INFO] [stderr]     |
[INFO] [stderr] 103 |         if (instant.elapsed() >= one_sec){
[INFO] [stderr]     |            ^                            ^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 103 -         if (instant.elapsed() >= one_sec){
[INFO] [stderr] 103 +         if instant.elapsed() >= one_sec {
[INFO] [stderr]     | 
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around method argument
[INFO] [stderr]    --> src/main.rs:161:55
[INFO] [stderr]     |
[INFO] [stderr] 161 |                 main_container.attach(&buttons[i][k], (i as i32), ((k) as i32), 1, 1);
[INFO] [stderr]     |                                                       ^        ^
[INFO] [stderr]     |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 161 -                 main_container.attach(&buttons[i][k], (i as i32), ((k) as i32), 1, 1);
[INFO] [stderr] 161 +                 main_container.attach(&buttons[i][k], i as i32, ((k) as i32), 1, 1);
[INFO] [stderr]     | 
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around method argument
[INFO] [stderr]    --> src/main.rs:161:67
[INFO] [stderr]     |
[INFO] [stderr] 161 |                 main_container.attach(&buttons[i][k], (i as i32), ((k) as i32), 1, 1);
[INFO] [stderr]     |                                                                   ^          ^
[INFO] [stderr]     |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 161 -                 main_container.attach(&buttons[i][k], (i as i32), ((k) as i32), 1, 1);
[INFO] [stderr] 161 +                 main_container.attach(&buttons[i][k], (i as i32), (k) as i32, 1, 1);
[INFO] [stderr]     | 
[INFO] [stderr] 
[INFO] [stderr] warning: crate-level attribute should be an inner attribute: add an exclamation mark: `#![foo]`
[INFO] [stderr]   --> src/main.rs:60:5
[INFO] [stderr]    |
[INFO] [stderr] 60 |     #[feature(type_ascription)]
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_attributes)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:83:9
[INFO] [stderr]    |
[INFO] [stderr] 83 |     let mut actives = vec![vec![false;HEIGHT];WIDTH];
[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: field is never read: `header`
[INFO] [stderr]   --> src/main.rs:55:5
[INFO] [stderr]    |
[INFO] [stderr] 55 |     pub header: Header,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `echo`
[INFO] [stderr]    --> src/main.rs:212:4
[INFO] [stderr]     |
[INFO] [stderr] 212 | fn echo(s: &str, path: &Path) -> io::Result<()> {
[INFO] [stderr]     |    ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `gameoflife` (bin "gameoflife" test) generated 16 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/gameoflife-2f4a8d69ba2e37fa)
[INFO] running `Command { std: "docker" "inspect" "44f4793f6980980e7a08115c808b326b7005ced4a1d613e149303b6017150fb7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "44f4793f6980980e7a08115c808b326b7005ced4a1d613e149303b6017150fb7", kill_on_drop: false }`
[INFO] [stdout] 44f4793f6980980e7a08115c808b326b7005ced4a1d613e149303b6017150fb7