[INFO] cloning repository https://github.com/marius851000/painted-palette-mgr
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/marius851000/painted-palette-mgr" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmarius851000%2Fpainted-palette-mgr", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmarius851000%2Fpainted-palette-mgr'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3c0a99b949efad4a38e86cb265971b62d029cacd
[INFO] testing marius851000/painted-palette-mgr against master#d98a5da813da67eb189387b8ccfb73cf481275d8+rustflags=-Copt-level=3 for pr-138759-retry
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmarius851000%2Fpainted-palette-mgr" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/marius851000/painted-palette-mgr
[INFO] finished tweaking git repo https://github.com/marius851000/painted-palette-mgr
[INFO] tweaked toml for git repo https://github.com/marius851000/painted-palette-mgr written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/marius851000/painted-palette-mgr on toolchain d98a5da813da67eb189387b8ccfb73cf481275d8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/marius851000/painted-palette-mgr 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" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded unicode-ident v1.0.11
[INFO] [stderr]   Downloaded windows-targets v0.48.1
[INFO] [stderr]   Downloaded itoa v1.0.9
[INFO] [stderr]   Downloaded crc v3.0.1
[INFO] [stderr]   Downloaded quote v1.0.31
[INFO] [stderr]   Downloaded log v0.4.19
[INFO] [stderr]   Downloaded iana-time-zone v0.1.57
[INFO] [stderr]   Downloaded ryu v1.0.15
[INFO] [stderr]   Downloaded bumpalo v3.13.0
[INFO] [stderr]   Downloaded serde v1.0.174
[INFO] [stderr]   Downloaded proc-macro2 v1.0.66
[INFO] [stderr]   Downloaded serde_json v1.0.103
[INFO] [stderr]   Downloaded crc-catalog v2.2.0
[INFO] [stderr]   Downloaded chrono v0.4.26
[INFO] [stderr]   Downloaded syn v2.0.27
[INFO] [stderr]   Downloaded nix v0.26.2
[INFO] [stderr]   Downloaded serde_derive v1.0.174
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6985a201149378d97d382faa6ef754f39e25296df7b8af4aeec0a8a01d396c44
[INFO] running `Command { std: "docker" "start" "-a" "6985a201149378d97d382faa6ef754f39e25296df7b8af4aeec0a8a01d396c44", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6985a201149378d97d382faa6ef754f39e25296df7b8af4aeec0a8a01d396c44", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6985a201149378d97d382faa6ef754f39e25296df7b8af4aeec0a8a01d396c44", kill_on_drop: false }`
[INFO] [stdout] 6985a201149378d97d382faa6ef754f39e25296df7b8af4aeec0a8a01d396c44
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid -Copt-level=3" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cbc1d4843cd461cebe7bbb9c4db4c54fee04d112278ebe7ece7417a817814237
[INFO] running `Command { std: "docker" "start" "-a" "cbc1d4843cd461cebe7bbb9c4db4c54fee04d112278ebe7ece7417a817814237", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.147
[INFO] [stderr]    Compiling num-traits v0.2.16
[INFO] [stderr]    Compiling memoffset v0.7.1
[INFO] [stderr]    Compiling serde v1.0.174
[INFO] [stderr]    Compiling serde_derive v1.0.174
[INFO] [stderr]    Compiling serde_json v1.0.103
[INFO] [stderr]    Compiling iana-time-zone v0.1.57
[INFO] [stderr]    Compiling itoa v1.0.9
[INFO] [stderr]    Compiling ryu v1.0.15
[INFO] [stderr]    Compiling static_assertions v1.1.0
[INFO] [stderr]    Compiling crc-catalog v2.2.0
[INFO] [stderr]    Compiling crc v3.0.1
[INFO] [stderr]    Compiling time v0.1.45
[INFO] [stderr]    Compiling nix v0.26.2
[INFO] [stderr]    Compiling wait-timeout v0.2.0
[INFO] [stderr]    Compiling chrono v0.4.26
[INFO] [stderr]    Compiling painted-palette-mgr v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Thread`, `process::CommandExt`, `thread`, and `time::Duration`
[INFO] [stdout]  --> src/manager.rs:1:40
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{sync::{Arc, Mutex}, thread::{Thread, spawn}, process::Command, os::unix::{thread, process::CommandExt}, time::Duration, path::P...
[INFO] [stdout]   |                                        ^^^^^^                                       ^^^^^^  ^^^^^^^^^^^^^^^^^^^   ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Signal`, `libc::getpgid`, `self`, and `unistd::Pid`
[INFO] [stdout]  --> src/manager.rs:2:25
[INFO] [stdout]   |
[INFO] [stdout] 2 | use nix::{sys::signal::{self, Signal}, unistd::Pid, libc::getpgid};
[INFO] [stdout]   |                         ^^^^  ^^^^^^   ^^^^^^^^^^^  ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `wait_timeout::ChildExt`
[INFO] [stdout]  --> src/manager.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use wait_timeout::ChildExt;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Session`
[INFO] [stdout]  --> src/manager.rs:4:20
[INFO] [stdout]   |
[INFO] [stdout] 4 | use crate::{Users, Session, Config, User, PPConfig, PPUser};
[INFO] [stdout]   |                    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/main.rs:33:12
[INFO] [stdout]    |
[INFO] [stdout] 33 |         if (nb < 0) {
[INFO] [stdout]    |            ^      ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 33 -         if (nb < 0) {
[INFO] [stdout] 33 +         if nb < 0 {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]  --> src/main.rs:8:9
[INFO] [stdout]   |
[INFO] [stdout] 8 |     let mut config = Config {
[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] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 14.37s
[INFO] running `Command { std: "docker" "inspect" "cbc1d4843cd461cebe7bbb9c4db4c54fee04d112278ebe7ece7417a817814237", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cbc1d4843cd461cebe7bbb9c4db4c54fee04d112278ebe7ece7417a817814237", kill_on_drop: false }`
[INFO] [stdout] cbc1d4843cd461cebe7bbb9c4db4c54fee04d112278ebe7ece7417a817814237
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid -Copt-level=3" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 27472370e32fa5663c10913ab3cfee2067be5ac77eff748ef648806952ae71c8
[INFO] running `Command { std: "docker" "start" "-a" "27472370e32fa5663c10913ab3cfee2067be5ac77eff748ef648806952ae71c8", kill_on_drop: false }`
[INFO] [stdout] warning: unused imports: `Thread`, `process::CommandExt`, `thread`, and `time::Duration`
[INFO] [stdout]  --> src/manager.rs:1:40
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{sync::{Arc, Mutex}, thread::{Thread, spawn}, process::Command, os::unix::{thread, process::CommandExt}, time::Duration, path::P...
[INFO] [stdout]   |                                        ^^^^^^                                       ^^^^^^  ^^^^^^^^^^^^^^^^^^^   ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Signal`, `libc::getpgid`, `self`, and `unistd::Pid`
[INFO] [stdout]  --> src/manager.rs:2:25
[INFO] [stdout]   |
[INFO] [stdout] 2 | use nix::{sys::signal::{self, Signal}, unistd::Pid, libc::getpgid};
[INFO] [stdout]   |                         ^^^^  ^^^^^^   ^^^^^^^^^^^  ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `wait_timeout::ChildExt`
[INFO] [stdout]  --> src/manager.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use wait_timeout::ChildExt;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Session`
[INFO] [stdout]  --> src/manager.rs:4:20
[INFO] [stdout]   |
[INFO] [stdout] 4 | use crate::{Users, Session, Config, User, PPConfig, PPUser};
[INFO] [stdout]   |                    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling painted-palette-mgr v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Thread`, `process::CommandExt`, `thread`, and `time::Duration`
[INFO] [stdout]  --> src/manager.rs:1:40
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{sync::{Arc, Mutex}, thread::{Thread, spawn}, process::Command, os::unix::{thread, process::CommandExt}, time::Duration, path::P...
[INFO] [stdout]   |                                        ^^^^^^                                       ^^^^^^  ^^^^^^^^^^^^^^^^^^^   ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Signal`, `libc::getpgid`, `self`, and `unistd::Pid`
[INFO] [stdout]  --> src/manager.rs:2:25
[INFO] [stdout]   |
[INFO] [stdout] 2 | use nix::{sys::signal::{self, Signal}, unistd::Pid, libc::getpgid};
[INFO] [stdout]   |                         ^^^^  ^^^^^^   ^^^^^^^^^^^  ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `wait_timeout::ChildExt`
[INFO] [stdout]  --> src/manager.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use wait_timeout::ChildExt;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Session`
[INFO] [stdout]  --> src/manager.rs:4:20
[INFO] [stdout]   |
[INFO] [stdout] 4 | use crate::{Users, Session, Config, User, PPConfig, PPUser};
[INFO] [stdout]   |                    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/main.rs:33:12
[INFO] [stdout]    |
[INFO] [stdout] 33 |         if (nb < 0) {
[INFO] [stdout]    |            ^      ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 33 -         if (nb < 0) {
[INFO] [stdout] 33 +         if nb < 0 {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]  --> src/main.rs:8:9
[INFO] [stdout]   |
[INFO] [stdout] 8 |     let mut config = Config {
[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] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.46s
[INFO] running `Command { std: "docker" "inspect" "27472370e32fa5663c10913ab3cfee2067be5ac77eff748ef648806952ae71c8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "27472370e32fa5663c10913ab3cfee2067be5ac77eff748ef648806952ae71c8", kill_on_drop: false }`
[INFO] [stdout] 27472370e32fa5663c10913ab3cfee2067be5ac77eff748ef648806952ae71c8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid -Copt-level=3" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 81fff5dc7d1e2ae27c1afa7034ea5295fe379b304e95e27a066b52053c5fc547
[INFO] running `Command { std: "docker" "start" "-a" "81fff5dc7d1e2ae27c1afa7034ea5295fe379b304e95e27a066b52053c5fc547", kill_on_drop: false }`
[INFO] [stderr] warning: unused imports: `Thread`, `process::CommandExt`, `thread`, and `time::Duration`
[INFO] [stderr]  --> src/manager.rs:1:40
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::{sync::{Arc, Mutex}, thread::{Thread, spawn}, process::Command, os::unix::{thread, process::CommandExt}, time::Duration, path::P...
[INFO] [stderr]   |                                        ^^^^^^                                       ^^^^^^  ^^^^^^^^^^^^^^^^^^^   ^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Signal`, `libc::getpgid`, `self`, and `unistd::Pid`
[INFO] [stderr]  --> src/manager.rs:2:25
[INFO] [stderr]   |
[INFO] [stderr] 2 | use nix::{sys::signal::{self, Signal}, unistd::Pid, libc::getpgid};
[INFO] [stderr]   |                         ^^^^  ^^^^^^   ^^^^^^^^^^^  ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `wait_timeout::ChildExt`
[INFO] [stderr]  --> src/manager.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use wait_timeout::ChildExt;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Session`
[INFO] [stderr]  --> src/manager.rs:4:20
[INFO] [stderr]   |
[INFO] [stderr] 4 | use crate::{Users, Session, Config, User, PPConfig, PPUser};
[INFO] [stderr]   |                    ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `painted-palette-mgr` (lib) generated 4 warnings (run `cargo fix --lib -p painted-palette-mgr` to apply 4 suggestions)
[INFO] [stderr] warning: `painted-palette-mgr` (lib test) generated 4 warnings (4 duplicates)
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]   --> src/main.rs:33:12
[INFO] [stderr]    |
[INFO] [stderr] 33 |         if (nb < 0) {
[INFO] [stderr]    |            ^      ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr] 33 -         if (nb < 0) {
[INFO] [stderr] 33 +         if nb < 0 {
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]  --> src/main.rs:8:9
[INFO] [stderr]   |
[INFO] [stderr] 8 |     let mut config = Config {
[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: `painted-palette-mgr` (bin "painted-palette-mgr" test) generated 2 warnings (run `cargo fix --bin "painted-palette-mgr" --tests` to apply 2 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/painted_palette_mgr-34c8cd28adfbb363)
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/painted_palette_mgr-f2d2c084cb7a932b)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests painted_palette_mgr
[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] [stdout] 
[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" "81fff5dc7d1e2ae27c1afa7034ea5295fe379b304e95e27a066b52053c5fc547", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "81fff5dc7d1e2ae27c1afa7034ea5295fe379b304e95e27a066b52053c5fc547", kill_on_drop: false }`
[INFO] [stdout] 81fff5dc7d1e2ae27c1afa7034ea5295fe379b304e95e27a066b52053c5fc547
