[INFO] cloning repository https://github.com/ElijahWoelbing/rust-dmg [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ElijahWoelbing/rust-dmg" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FElijahWoelbing%2Frust-dmg", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FElijahWoelbing%2Frust-dmg'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 1577035edf5e987b4924a2f2cfe0197b50cae26f [INFO] testing ElijahWoelbing/rust-dmg against 1.49.0 for beta-1.50-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FElijahWoelbing%2Frust-dmg" "/workspace/builds/worker-0/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/ElijahWoelbing/rust-dmg on toolchain 1.49.0 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/ElijahWoelbing/rust-dmg [INFO] finished tweaking git repo https://github.com/ElijahWoelbing/rust-dmg [INFO] tweaked toml for git repo https://github.com/ElijahWoelbing/rust-dmg written to /workspace/builds/worker-0/source/Cargo.toml [INFO] crate git repo https://github.com/ElijahWoelbing/rust-dmg already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] aed798c053334a13b16de986baea61b4a024eee12934f06ec2cd55d77fd6f749 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "aed798c053334a13b16de986baea61b4a024eee12934f06ec2cd55d77fd6f749", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "aed798c053334a13b16de986baea61b4a024eee12934f06ec2cd55d77fd6f749", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "aed798c053334a13b16de986baea61b4a024eee12934f06ec2cd55d77fd6f749", kill_on_drop: false }` [INFO] [stdout] aed798c053334a13b16de986baea61b4a024eee12934f06ec2cd55d77fd6f749 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] be49a8b75c2b2b18c04a568186f2142dd4a67f5b8696b035d056313ca9567c0a [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "be49a8b75c2b2b18c04a568186f2142dd4a67f5b8696b035d056313ca9567c0a", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling memchr v2.3.4 [INFO] [stderr] Compiling smallvec v1.5.1 [INFO] [stderr] Compiling once_cell v1.5.2 [INFO] [stderr] Compiling cc v1.0.65 [INFO] [stderr] Compiling wayland-sys v0.27.0 [INFO] [stderr] Compiling nom v6.0.1 [INFO] [stderr] Compiling xkbcommon-sys v0.7.4 [INFO] [stderr] Compiling num-integer v0.1.44 [INFO] [stderr] Compiling nix v0.17.0 [INFO] [stderr] Compiling getrandom v0.1.15 [INFO] [stderr] Compiling time v0.1.44 [INFO] [stderr] Compiling wayland-scanner v0.27.0 [INFO] [stderr] Compiling rand_core v0.5.1 [INFO] [stderr] Compiling rand_chacha v0.2.2 [INFO] [stderr] Compiling xkb v0.2.1 [INFO] [stderr] Compiling rand v0.7.3 [INFO] [stderr] Compiling chrono v0.4.19 [INFO] [stderr] Compiling minifb v0.19.1 [INFO] [stderr] Compiling wayland-client v0.27.0 [INFO] [stderr] Compiling wayland-protocols v0.27.0 [INFO] [stderr] Compiling tempfile v3.1.0 [INFO] [stderr] Compiling timer v0.2.0 [INFO] [stderr] Compiling xcursor v0.3.3 [INFO] [stderr] Compiling wayland-commons v0.27.0 [INFO] [stderr] Compiling wayland-cursor v0.27.0 [INFO] [stderr] Compiling rust-dmg v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `Key` [INFO] [stdout] --> src/lcd.rs:4:14 [INFO] [stdout] | [INFO] [stdout] 4 | use minifb::{Key, Window, WindowOptions}; [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `hi_bit` is never read [INFO] [stdout] --> src/ppu.rs:336:13 [INFO] [stdout] | [INFO] [stdout] 336 | let mut hi_bit = 0; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_assignments)]` on by default [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `lo_bit` is never read [INFO] [stdout] --> src/ppu.rs:337:13 [INFO] [stdout] | [INFO] [stdout] 337 | let mut lo_bit = 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 `color` is never read [INFO] [stdout] --> src/ppu.rs:359:13 [INFO] [stdout] | [INFO] [stdout] 359 | let mut color = 0; [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `address` [INFO] [stdout] --> src/mbc/mbc0.rs:12:29 [INFO] [stdout] | [INFO] [stdout] 12 | fn write_rom(&mut self, address: u16, value: u8) { [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_address` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `value` [INFO] [stdout] --> src/mbc/mbc0.rs:12:43 [INFO] [stdout] | [INFO] [stdout] 12 | fn write_rom(&mut self, address: u16, value: u8) { [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_value` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `address` [INFO] [stdout] --> src/mbc/mbc0.rs:16:24 [INFO] [stdout] | [INFO] [stdout] 16 | fn read_ram(&self, address: u16) -> u8 { [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_address` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `address` [INFO] [stdout] --> src/mbc/mbc0.rs:20:29 [INFO] [stdout] | [INFO] [stdout] 20 | fn write_ram(&mut self, address: u16, value: u8) { [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_address` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `value` [INFO] [stdout] --> src/mbc/mbc0.rs:20:43 [INFO] [stdout] | [INFO] [stdout] 20 | fn write_ram(&mut self, address: u16, value: u8) { [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_value` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/lcd.rs:13:13 [INFO] [stdout] | [INFO] [stdout] 13 | let mut window = Window::new( [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: 10 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1m 40s [INFO] running `Command { std: "docker" "inspect" "be49a8b75c2b2b18c04a568186f2142dd4a67f5b8696b035d056313ca9567c0a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "be49a8b75c2b2b18c04a568186f2142dd4a67f5b8696b035d056313ca9567c0a", kill_on_drop: false }` [INFO] [stdout] be49a8b75c2b2b18c04a568186f2142dd4a67f5b8696b035d056313ca9567c0a [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] a533278ef3fd6f5a4e024acba71a3f1723d3428c89e21262bf70e7da5d38ee66 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "a533278ef3fd6f5a4e024acba71a3f1723d3428c89e21262bf70e7da5d38ee66", kill_on_drop: false }` [INFO] [stderr] Compiling rust-dmg v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `Key` [INFO] [stdout] --> src/lcd.rs:4:14 [INFO] [stdout] | [INFO] [stdout] 4 | use minifb::{Key, Window, WindowOptions}; [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `hi_bit` is never read [INFO] [stdout] --> src/ppu.rs:336:13 [INFO] [stdout] | [INFO] [stdout] 336 | let mut hi_bit = 0; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_assignments)]` on by default [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `lo_bit` is never read [INFO] [stdout] --> src/ppu.rs:337:13 [INFO] [stdout] | [INFO] [stdout] 337 | let mut lo_bit = 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 `color` is never read [INFO] [stdout] --> src/ppu.rs:359:13 [INFO] [stdout] | [INFO] [stdout] 359 | let mut color = 0; [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `address` [INFO] [stdout] --> src/mbc/mbc0.rs:12:29 [INFO] [stdout] | [INFO] [stdout] 12 | fn write_rom(&mut self, address: u16, value: u8) { [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_address` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `value` [INFO] [stdout] --> src/mbc/mbc0.rs:12:43 [INFO] [stdout] | [INFO] [stdout] 12 | fn write_rom(&mut self, address: u16, value: u8) { [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_value` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `address` [INFO] [stdout] --> src/mbc/mbc0.rs:16:24 [INFO] [stdout] | [INFO] [stdout] 16 | fn read_ram(&self, address: u16) -> u8 { [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_address` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `address` [INFO] [stdout] --> src/mbc/mbc0.rs:20:29 [INFO] [stdout] | [INFO] [stdout] 20 | fn write_ram(&mut self, address: u16, value: u8) { [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_address` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `value` [INFO] [stdout] --> src/mbc/mbc0.rs:20:43 [INFO] [stdout] | [INFO] [stdout] 20 | fn write_ram(&mut self, address: u16, value: u8) { [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_value` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/lcd.rs:13:13 [INFO] [stdout] | [INFO] [stdout] 13 | let mut window = Window::new( [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: 10 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 1.50s [INFO] running `Command { std: "docker" "inspect" "a533278ef3fd6f5a4e024acba71a3f1723d3428c89e21262bf70e7da5d38ee66", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a533278ef3fd6f5a4e024acba71a3f1723d3428c89e21262bf70e7da5d38ee66", kill_on_drop: false }` [INFO] [stdout] a533278ef3fd6f5a4e024acba71a3f1723d3428c89e21262bf70e7da5d38ee66 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 0a29c0ddc9001cd5b9f86fe5abebe9db584c2a5053cf78bb2fa17973d5c2a8e9 [INFO] running `Command { std: "docker" "start" "-a" "0a29c0ddc9001cd5b9f86fe5abebe9db584c2a5053cf78bb2fa17973d5c2a8e9", kill_on_drop: false }` [INFO] [stderr] warning: unused import: `Key` [INFO] [stderr] --> src/lcd.rs:4:14 [INFO] [stderr] | [INFO] [stderr] 4 | use minifb::{Key, Window, WindowOptions}; [INFO] [stderr] | ^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: value assigned to `hi_bit` is never read [INFO] [stderr] --> src/ppu.rs:336:13 [INFO] [stderr] | [INFO] [stderr] 336 | let mut hi_bit = 0; [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_assignments)]` on by default [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: value assigned to `lo_bit` is never read [INFO] [stderr] --> src/ppu.rs:337:13 [INFO] [stderr] | [INFO] [stderr] 337 | let mut lo_bit = 0; [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: value assigned to `color` is never read [INFO] [stderr] --> src/ppu.rs:359:13 [INFO] [stderr] | [INFO] [stderr] 359 | let mut color = 0; [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: unused variable: `address` [INFO] [stderr] --> src/mbc/mbc0.rs:12:29 [INFO] [stderr] | [INFO] [stderr] 12 | fn write_rom(&mut self, address: u16, value: u8) { [INFO] [stderr] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_address` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `value` [INFO] [stderr] --> src/mbc/mbc0.rs:12:43 [INFO] [stderr] | [INFO] [stderr] 12 | fn write_rom(&mut self, address: u16, value: u8) { [INFO] [stderr] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_value` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `address` [INFO] [stderr] --> src/mbc/mbc0.rs:16:24 [INFO] [stderr] | [INFO] [stderr] 16 | fn read_ram(&self, address: u16) -> u8 { [INFO] [stderr] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_address` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `address` [INFO] [stderr] --> src/mbc/mbc0.rs:20:29 [INFO] [stderr] | [INFO] [stderr] 20 | fn write_ram(&mut self, address: u16, value: u8) { [INFO] [stderr] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_address` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `value` [INFO] [stderr] --> src/mbc/mbc0.rs:20:43 [INFO] [stderr] | [INFO] [stderr] 20 | fn write_ram(&mut self, address: u16, value: u8) { [INFO] [stderr] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_value` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/lcd.rs:13:13 [INFO] [stderr] | [INFO] [stderr] 13 | let mut window = Window::new( [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: 10 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.09s [INFO] [stderr] Running /opt/rustwide/target/debug/deps/rust_dmg-8ffd230d761b2b40 [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "0a29c0ddc9001cd5b9f86fe5abebe9db584c2a5053cf78bb2fa17973d5c2a8e9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0a29c0ddc9001cd5b9f86fe5abebe9db584c2a5053cf78bb2fa17973d5c2a8e9", kill_on_drop: false }` [INFO] [stdout] 0a29c0ddc9001cd5b9f86fe5abebe9db584c2a5053cf78bb2fa17973d5c2a8e9