[INFO] cloning repository https://github.com/realSuffix/simple_wm
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/realSuffix/simple_wm" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FrealSuffix%2Fsimple_wm", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FrealSuffix%2Fsimple_wm'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3d8e1766e600485d8a99b7ea1596bd5225ec1c8d
[INFO] checking realSuffix/simple_wm against master#4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5 for pr-81174
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FrealSuffix%2Fsimple_wm" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/realSuffix/simple_wm on toolchain 4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/realSuffix/simple_wm
[INFO] finished tweaking git repo https://github.com/realSuffix/simple_wm
[INFO] tweaked toml for git repo https://github.com/realSuffix/simple_wm written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/realSuffix/simple_wm already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ea6f91a51e0da4b639e2d30d9965e8965754a5eb794b800b72691c6803849ff4
[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" "ea6f91a51e0da4b639e2d30d9965e8965754a5eb794b800b72691c6803849ff4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ea6f91a51e0da4b639e2d30d9965e8965754a5eb794b800b72691c6803849ff4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ea6f91a51e0da4b639e2d30d9965e8965754a5eb794b800b72691c6803849ff4", kill_on_drop: false }`
[INFO] [stdout] ea6f91a51e0da4b639e2d30d9965e8965754a5eb794b800b72691c6803849ff4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", 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] 3b13c10ec546f0c98c07642d60d7d6aa11b9fe11bc748fad718016dd878b0538
[INFO] running `Command { std: "docker" "start" "-a" "3b13c10ec546f0c98c07642d60d7d6aa11b9fe11bc748fad718016dd878b0538", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.69
[INFO] [stderr]    Compiling x11 v2.18.2
[INFO] [stderr]     Checking simple_wm v0.1.0 (/opt/rustwide/workdir/simple_wm)
[INFO] [stdout] warning: unused import: `crate::clients::client::BORDER_WIDTH`
[INFO] [stdout]  --> simple_wm/src/window_manager.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::clients::client::BORDER_WIDTH;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ffi::CString`
[INFO] [stdout]  --> simple_wm/src/window_manager.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::ffi::CString;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::thread::spawn`
[INFO] [stdout]  --> simple_wm/src/window_manager.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::thread::spawn;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `client`
[INFO] [stdout]   --> simple_wm/src/window_manager.rs:56:30
[INFO] [stdout]    |
[INFO] [stdout] 56 |                         Some(client) => {
[INFO] [stdout]    |                              ^^^^^^ help: if this is intentional, prefix it with an underscore: `_client`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> simple_wm/src/data.rs:20:12
[INFO] [stdout]    |
[INFO] [stdout] 20 |     pub fn new(width: u32, height: u32) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> simple_wm/src/data.rs:25:12
[INFO] [stdout]    |
[INFO] [stdout] 25 |     pub fn new(x: i32, y: i32) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> simple_wm/src/data.rs:30:12
[INFO] [stdout]    |
[INFO] [stdout] 30 |     pub fn new(x: i32, y: i32) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `add_vec`
[INFO] [stdout]   --> simple_wm/src/data.rs:61:12
[INFO] [stdout]    |
[INFO] [stdout] 61 |     pub fn add_vec(&self, vec: &Vector2D) -> Self {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `add_vec`
[INFO] [stdout]   --> simple_wm/src/data.rs:70:12
[INFO] [stdout]    |
[INFO] [stdout] 70 |     pub fn add_vec(&self, vec: &Vector2D) -> Self {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `BORDER_COLOR`
[INFO] [stdout]  --> simple_wm/src/clients/client.rs:5:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub const BORDER_COLOR: u64 = 0xff0000;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `BG_COLOR`
[INFO] [stdout]  --> simple_wm/src/clients/client.rs:6:1
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub const BG_COLOR: u64 = 0x0000ff;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `configure`
[INFO] [stdout]   --> simple_wm/src/clients/client.rs:49:12
[INFO] [stdout]    |
[INFO] [stdout] 49 |     pub fn configure(
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::clients::client::BORDER_WIDTH`
[INFO] [stdout]  --> simple_wm/src/window_manager.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::clients::client::BORDER_WIDTH;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ffi::CString`
[INFO] [stdout]  --> simple_wm/src/window_manager.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::ffi::CString;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::thread::spawn`
[INFO] [stdout]  --> simple_wm/src/window_manager.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::thread::spawn;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 12 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `client`
[INFO] [stdout]   --> simple_wm/src/window_manager.rs:56:30
[INFO] [stdout]    |
[INFO] [stdout] 56 |                         Some(client) => {
[INFO] [stdout]    |                              ^^^^^^ help: if this is intentional, prefix it with an underscore: `_client`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> simple_wm/src/data.rs:20:12
[INFO] [stdout]    |
[INFO] [stdout] 20 |     pub fn new(width: u32, height: u32) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> simple_wm/src/data.rs:25:12
[INFO] [stdout]    |
[INFO] [stdout] 25 |     pub fn new(x: i32, y: i32) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> simple_wm/src/data.rs:30:12
[INFO] [stdout]    |
[INFO] [stdout] 30 |     pub fn new(x: i32, y: i32) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `add_vec`
[INFO] [stdout]   --> simple_wm/src/data.rs:61:12
[INFO] [stdout]    |
[INFO] [stdout] 61 |     pub fn add_vec(&self, vec: &Vector2D) -> Self {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `add_vec`
[INFO] [stdout]   --> simple_wm/src/data.rs:70:12
[INFO] [stdout]    |
[INFO] [stdout] 70 |     pub fn add_vec(&self, vec: &Vector2D) -> Self {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `BORDER_COLOR`
[INFO] [stdout]  --> simple_wm/src/clients/client.rs:5:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub const BORDER_COLOR: u64 = 0xff0000;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `BG_COLOR`
[INFO] [stdout]  --> simple_wm/src/clients/client.rs:6:1
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub const BG_COLOR: u64 = 0x0000ff;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `configure`
[INFO] [stdout]   --> simple_wm/src/clients/client.rs:49:12
[INFO] [stdout]    |
[INFO] [stdout] 49 |     pub fn configure(
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 12 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.77s
[INFO] running `Command { std: "docker" "inspect" "3b13c10ec546f0c98c07642d60d7d6aa11b9fe11bc748fad718016dd878b0538", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3b13c10ec546f0c98c07642d60d7d6aa11b9fe11bc748fad718016dd878b0538", kill_on_drop: false }`
[INFO] [stdout] 3b13c10ec546f0c98c07642d60d7d6aa11b9fe11bc748fad718016dd878b0538