[INFO] cloning repository https://github.com/aboglioli/rwm
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/aboglioli/rwm" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faboglioli%2Frwm", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faboglioli%2Frwm'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4979cda073bdfa0d53ae0cc81000588e6a3b3a63
[INFO] checking aboglioli/rwm against master#bca37a20bd376ce3fd138e7cdee7fe704e0f8814 for pr-139493-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faboglioli%2Frwm" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/aboglioli/rwm
[INFO] finished tweaking git repo https://github.com/aboglioli/rwm
[INFO] tweaked toml for git repo https://github.com/aboglioli/rwm written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/aboglioli/rwm on toolchain bca37a20bd376ce3fd138e7cdee7fe704e0f8814
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/aboglioli/rwm 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" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded x11 v2.18.2
[INFO] [stderr]   Downloaded mio-named-pipes v0.1.6
[INFO] [stderr]   Downloaded hermit-abi v0.1.12
[INFO] [stderr]   Downloaded proc-macro2 v1.0.12
[INFO] [stderr]   Downloaded pin-project-lite v0.1.5
[INFO] [stderr]   Downloaded quote v1.0.4
[INFO] [stderr]   Downloaded futures-core v0.3.4
[INFO] [stderr]   Downloaded arc-swap v0.4.6
[INFO] [stderr]   Downloaded bytes v0.5.4
[INFO] [stderr]   Downloaded miow v0.3.3
[INFO] [stderr]   Downloaded syn v1.0.19
[INFO] [stderr]   Downloaded tokio v0.2.20
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] edc045a7a2d79264f740da71b29e3e3fcbe9bbe321bf3477c4e765b4b9a5f0b1
[INFO] running `Command { std: "docker" "start" "-a" "edc045a7a2d79264f740da71b29e3e3fcbe9bbe321bf3477c4e765b4b9a5f0b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "edc045a7a2d79264f740da71b29e3e3fcbe9bbe321bf3477c4e765b4b9a5f0b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "edc045a7a2d79264f740da71b29e3e3fcbe9bbe321bf3477c4e765b4b9a5f0b1", kill_on_drop: false }`
[INFO] [stdout] edc045a7a2d79264f740da71b29e3e3fcbe9bbe321bf3477c4e765b4b9a5f0b1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a7bda480161553c5d558375d70565570807d5e3c20b0f084bcc2339fa39f4b99
[INFO] running `Command { std: "docker" "start" "-a" "a7bda480161553c5d558375d70565570807d5e3c20b0f084bcc2339fa39f4b99", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.69
[INFO] [stderr]    Compiling proc-macro2 v1.0.12
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.19
[INFO] [stderr]    Compiling pkg-config v0.3.17
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]     Checking arc-swap v0.4.6
[INFO] [stderr]     Checking fnv v1.0.6
[INFO] [stderr]     Checking pin-project-lite v0.1.5
[INFO] [stderr]     Checking futures-core v0.3.4
[INFO] [stderr]     Checking bytes v0.5.4
[INFO] [stderr]    Compiling x11 v2.18.2
[INFO] [stderr]     Checking net2 v0.2.34
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking signal-hook-registry v1.2.0
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking mio v0.6.22
[INFO] [stderr]    Compiling quote v1.0.4
[INFO] [stderr]     Checking mio-uds v0.6.8
[INFO] [stderr]    Compiling tokio-macros v0.2.5
[INFO] [stderr]     Checking tokio v0.2.20
[INFO] [stderr]     Checking rwm v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: constant `MARKED_BORDER_COLOR` is never used
[INFO] [stdout]  --> src/core/config.rs:8:11
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub const MARKED_BORDER_COLOR: u64 = 0x00ff_ff00;
[INFO] [stdout]   |           ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Error` is never constructed
[INFO] [stdout]   --> src/core/error.rs:26:12
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub struct Error {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/core/error.rs:31:8
[INFO] [stdout]    |
[INFO] [stdout] 30 | impl Error {
[INFO] [stdout]    | ---------- associated function in this implementation
[INFO] [stdout] 31 |     fn new(message: &str) -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/core/event.rs:19:18
[INFO] [stdout]    |
[INFO] [stdout] 19 |     CreateNotify(CreateWindowEvent),
[INFO] [stdout]    |     ------------ ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 19 -     CreateNotify(CreateWindowEvent),
[INFO] [stdout] 19 +     CreateNotify(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/core/event.rs:20:21
[INFO] [stdout]    |
[INFO] [stdout] 20 |     ConfigureNotify(ConfigureEvent),
[INFO] [stdout]    |     --------------- ^^^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 20 -     ConfigureNotify(ConfigureEvent),
[INFO] [stdout] 20 +     ConfigureNotify(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/core/event.rs:21:20
[INFO] [stdout]    |
[INFO] [stdout] 21 |     ReparentNotify(ReparentEvent),
[INFO] [stdout]    |     -------------- ^^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 21 -     ReparentNotify(ReparentEvent),
[INFO] [stdout] 21 +     ReparentNotify(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/core/event.rs:22:15
[INFO] [stdout]    |
[INFO] [stdout] 22 |     MapNotify(MapEvent),
[INFO] [stdout]    |     --------- ^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 22 -     MapNotify(MapEvent),
[INFO] [stdout] 22 +     MapNotify(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/core/event.rs:24:19
[INFO] [stdout]    |
[INFO] [stdout] 24 |     DestroyNotify(DestroyWindowEvent),
[INFO] [stdout]    |     ------------- ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 24 -     DestroyNotify(DestroyWindowEvent),
[INFO] [stdout] 24 +     DestroyNotify(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/core/event.rs:31:14
[INFO] [stdout]    |
[INFO] [stdout] 31 |     KeyPress(KeyEvent),
[INFO] [stdout]    |     -------- ^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 31 -     KeyPress(KeyEvent),
[INFO] [stdout] 31 +     KeyPress(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/core/event.rs:32:16
[INFO] [stdout]    |
[INFO] [stdout] 32 |     KeyRelease(KeyEvent),
[INFO] [stdout]    |     ---------- ^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 32 -     KeyRelease(KeyEvent),
[INFO] [stdout] 32 +     KeyRelease(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/core/event.rs:33:17
[INFO] [stdout]    |
[INFO] [stdout] 33 |     ButtonPress(ButtonEvent),
[INFO] [stdout]    |     ----------- ^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 33 -     ButtonPress(ButtonEvent),
[INFO] [stdout] 33 +     ButtonPress(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/core/event.rs:34:19
[INFO] [stdout]    |
[INFO] [stdout] 34 |     ButtonRelease(ButtonEvent),
[INFO] [stdout]    |     ------------- ^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 34 -     ButtonRelease(ButtonEvent),
[INFO] [stdout] 34 +     ButtonRelease(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0` and `1` are never read
[INFO] [stdout]   --> src/core/event.rs:35:18
[INFO] [stdout]    |
[INFO] [stdout] 35 |     MotionNotify(ButtonEvent, MotionEvent),
[INFO] [stdout]    |     ------------ ^^^^^^^^^^^  ^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     fields in this variant
[INFO] [stdout]    |
[INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields
[INFO] [stdout]    |
[INFO] [stdout] 35 -     MotionNotify(ButtonEvent, MotionEvent),
[INFO] [stdout] 35 +     MotionNotify((), ()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `RowLayout` is never constructed
[INFO] [stdout]   --> src/core/layout.rs:23:12
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub struct RowLayout(pub u32, pub u32);
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `is`, `unfocus`, `mark`, `unmark`, and `reparent` are never used
[INFO] [stdout]   --> src/core/node.rs:7:8
[INFO] [stdout]    |
[INFO] [stdout]  5 | pub trait Node {
[INFO] [stdout]    |           ---- methods in this trait
[INFO] [stdout]  6 |     fn id(&self) -> NodeID;
[INFO] [stdout]  7 |     fn is(&self, id: NodeID) -> bool;
[INFO] [stdout]    |        ^^
[INFO] [stdout] ...
[INFO] [stdout] 13 |     fn unfocus(&mut self);
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 14 |
[INFO] [stdout] 15 |     fn mark(&mut self);
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 16 |     fn unmark(&mut self);
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 19 |     fn reparent(&self, parent: window::WindowID);
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Server` is never constructed
[INFO] [stdout]  --> src/core/server.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct Server {}
[INFO] [stdout]   |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `start` are never used
[INFO] [stdout]  --> src/core/server.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | impl Server {
[INFO] [stdout]   | ----------- associated items in this implementation
[INFO] [stdout] 4 |     fn new() -> Self {
[INFO] [stdout]   |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 8 |     fn start(&self) {}
[INFO] [stdout]   |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `x` and `y` are never read
[INFO] [stdout]   --> src/core/window.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub struct Position {
[INFO] [stdout]    |            -------- fields in this struct
[INFO] [stdout] 11 |     x: i32,
[INFO] [stdout]    |     ^
[INFO] [stdout] 12 |     y: i32,
[INFO] [stdout]    |     ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `width` and `height` are never read
[INFO] [stdout]   --> src/core/window.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub struct Size {
[INFO] [stdout]    |            ---- fields in this struct
[INFO] [stdout] 16 |     width: u32,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 17 |     height: u32,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `marked` is never read
[INFO] [stdout]   --> src/core/window.rs:29:5
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub struct Window {
[INFO] [stdout]    |            ------ field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 29 |     marked: bool,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the type `u64` does not permit being left uninitialized
[INFO] [stdout]    --> src/core/x.rs:105:35
[INFO] [stdout]     |
[INFO] [stdout] 105 |             let mut root_return = mem::MaybeUninit::uninit().assume_init();
[INFO] [stdout]     |                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |                                   |
[INFO] [stdout]     |                                   this code causes undefined behavior when executed
[INFO] [stdout]     |                                   help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done
[INFO] [stdout]     |
[INFO] [stdout]     = note: integers must be initialized
[INFO] [stdout]     = note: `#[warn(invalid_value)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the type `u64` does not permit being left uninitialized
[INFO] [stdout]    --> src/core/x.rs:106:37
[INFO] [stdout]     |
[INFO] [stdout] 106 |             let mut parent_return = mem::MaybeUninit::uninit().assume_init();
[INFO] [stdout]     |                                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |                                     |
[INFO] [stdout]     |                                     this code causes undefined behavior when executed
[INFO] [stdout]     |                                     help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done
[INFO] [stdout]     |
[INFO] [stdout]     = note: integers must be initialized
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the type `*mut u64` does not permit being left uninitialized
[INFO] [stdout]    --> src/core/x.rs:107:29
[INFO] [stdout]     |
[INFO] [stdout] 107 |             let mut w_ptr = mem::MaybeUninit::uninit().assume_init();
[INFO] [stdout]     |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |                             |
[INFO] [stdout]     |                             this code causes undefined behavior when executed
[INFO] [stdout]     |                             help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done
[INFO] [stdout]     |
[INFO] [stdout]     = note: raw pointers must be initialized
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the type `XWindowAttributes` does not permit being left uninitialized
[INFO] [stdout]    --> src/core/x.rs:194:29
[INFO] [stdout]     |
[INFO] [stdout] 194 |             let mut attrs = mem::MaybeUninit::uninit().assume_init();
[INFO] [stdout]     |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |                             |
[INFO] [stdout]     |                             this code causes undefined behavior when executed
[INFO] [stdout]     |                             help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done
[INFO] [stdout]     |
[INFO] [stdout]     = note: integers must be initialized
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `MARKED_BORDER_COLOR` is never used
[INFO] [stdout]  --> src/core/config.rs:8:11
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub const MARKED_BORDER_COLOR: u64 = 0x00ff_ff00;
[INFO] [stdout]   |           ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Error` is never constructed
[INFO] [stdout]   --> src/core/error.rs:26:12
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub struct Error {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/core/error.rs:31:8
[INFO] [stdout]    |
[INFO] [stdout] 30 | impl Error {
[INFO] [stdout]    | ---------- associated function in this implementation
[INFO] [stdout] 31 |     fn new(message: &str) -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/core/event.rs:19:18
[INFO] [stdout]    |
[INFO] [stdout] 19 |     CreateNotify(CreateWindowEvent),
[INFO] [stdout]    |     ------------ ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 19 -     CreateNotify(CreateWindowEvent),
[INFO] [stdout] 19 +     CreateNotify(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/core/event.rs:20:21
[INFO] [stdout]    |
[INFO] [stdout] 20 |     ConfigureNotify(ConfigureEvent),
[INFO] [stdout]    |     --------------- ^^^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 20 -     ConfigureNotify(ConfigureEvent),
[INFO] [stdout] 20 +     ConfigureNotify(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/core/event.rs:21:20
[INFO] [stdout]    |
[INFO] [stdout] 21 |     ReparentNotify(ReparentEvent),
[INFO] [stdout]    |     -------------- ^^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 21 -     ReparentNotify(ReparentEvent),
[INFO] [stdout] 21 +     ReparentNotify(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/core/event.rs:22:15
[INFO] [stdout]    |
[INFO] [stdout] 22 |     MapNotify(MapEvent),
[INFO] [stdout]    |     --------- ^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 22 -     MapNotify(MapEvent),
[INFO] [stdout] 22 +     MapNotify(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/core/event.rs:24:19
[INFO] [stdout]    |
[INFO] [stdout] 24 |     DestroyNotify(DestroyWindowEvent),
[INFO] [stdout]    |     ------------- ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 24 -     DestroyNotify(DestroyWindowEvent),
[INFO] [stdout] 24 +     DestroyNotify(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/core/event.rs:31:14
[INFO] [stdout]    |
[INFO] [stdout] 31 |     KeyPress(KeyEvent),
[INFO] [stdout]    |     -------- ^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 31 -     KeyPress(KeyEvent),
[INFO] [stdout] 31 +     KeyPress(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/core/event.rs:32:16
[INFO] [stdout]    |
[INFO] [stdout] 32 |     KeyRelease(KeyEvent),
[INFO] [stdout]    |     ---------- ^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 32 -     KeyRelease(KeyEvent),
[INFO] [stdout] 32 +     KeyRelease(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/core/event.rs:33:17
[INFO] [stdout]    |
[INFO] [stdout] 33 |     ButtonPress(ButtonEvent),
[INFO] [stdout]    |     ----------- ^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 33 -     ButtonPress(ButtonEvent),
[INFO] [stdout] 33 +     ButtonPress(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/core/event.rs:34:19
[INFO] [stdout]    |
[INFO] [stdout] 34 |     ButtonRelease(ButtonEvent),
[INFO] [stdout]    |     ------------- ^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 34 -     ButtonRelease(ButtonEvent),
[INFO] [stdout] 34 +     ButtonRelease(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0` and `1` are never read
[INFO] [stdout]   --> src/core/event.rs:35:18
[INFO] [stdout]    |
[INFO] [stdout] 35 |     MotionNotify(ButtonEvent, MotionEvent),
[INFO] [stdout]    |     ------------ ^^^^^^^^^^^  ^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     fields in this variant
[INFO] [stdout]    |
[INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields
[INFO] [stdout]    |
[INFO] [stdout] 35 -     MotionNotify(ButtonEvent, MotionEvent),
[INFO] [stdout] 35 +     MotionNotify((), ()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `RowLayout` is never constructed
[INFO] [stdout]   --> src/core/layout.rs:23:12
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub struct RowLayout(pub u32, pub u32);
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `is`, `unfocus`, `mark`, `unmark`, and `reparent` are never used
[INFO] [stdout]   --> src/core/node.rs:7:8
[INFO] [stdout]    |
[INFO] [stdout]  5 | pub trait Node {
[INFO] [stdout]    |           ---- methods in this trait
[INFO] [stdout]  6 |     fn id(&self) -> NodeID;
[INFO] [stdout]  7 |     fn is(&self, id: NodeID) -> bool;
[INFO] [stdout]    |        ^^
[INFO] [stdout] ...
[INFO] [stdout] 13 |     fn unfocus(&mut self);
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 14 |
[INFO] [stdout] 15 |     fn mark(&mut self);
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 16 |     fn unmark(&mut self);
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 19 |     fn reparent(&self, parent: window::WindowID);
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Server` is never constructed
[INFO] [stdout]  --> src/core/server.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct Server {}
[INFO] [stdout]   |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `start` are never used
[INFO] [stdout]  --> src/core/server.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | impl Server {
[INFO] [stdout]   | ----------- associated items in this implementation
[INFO] [stdout] 4 |     fn new() -> Self {
[INFO] [stdout]   |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 8 |     fn start(&self) {}
[INFO] [stdout]   |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `x` and `y` are never read
[INFO] [stdout]   --> src/core/window.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub struct Position {
[INFO] [stdout]    |            -------- fields in this struct
[INFO] [stdout] 11 |     x: i32,
[INFO] [stdout]    |     ^
[INFO] [stdout] 12 |     y: i32,
[INFO] [stdout]    |     ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `width` and `height` are never read
[INFO] [stdout]   --> src/core/window.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub struct Size {
[INFO] [stdout]    |            ---- fields in this struct
[INFO] [stdout] 16 |     width: u32,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 17 |     height: u32,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `marked` is never read
[INFO] [stdout]   --> src/core/window.rs:29:5
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub struct Window {
[INFO] [stdout]    |            ------ field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 29 |     marked: bool,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the type `u64` does not permit being left uninitialized
[INFO] [stdout]    --> src/core/x.rs:105:35
[INFO] [stdout]     |
[INFO] [stdout] 105 |             let mut root_return = mem::MaybeUninit::uninit().assume_init();
[INFO] [stdout]     |                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |                                   |
[INFO] [stdout]     |                                   this code causes undefined behavior when executed
[INFO] [stdout]     |                                   help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done
[INFO] [stdout]     |
[INFO] [stdout]     = note: integers must be initialized
[INFO] [stdout]     = note: `#[warn(invalid_value)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the type `u64` does not permit being left uninitialized
[INFO] [stdout]    --> src/core/x.rs:106:37
[INFO] [stdout]     |
[INFO] [stdout] 106 |             let mut parent_return = mem::MaybeUninit::uninit().assume_init();
[INFO] [stdout]     |                                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |                                     |
[INFO] [stdout]     |                                     this code causes undefined behavior when executed
[INFO] [stdout]     |                                     help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done
[INFO] [stdout]     |
[INFO] [stdout]     = note: integers must be initialized
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the type `*mut u64` does not permit being left uninitialized
[INFO] [stdout]    --> src/core/x.rs:107:29
[INFO] [stdout]     |
[INFO] [stdout] 107 |             let mut w_ptr = mem::MaybeUninit::uninit().assume_init();
[INFO] [stdout]     |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |                             |
[INFO] [stdout]     |                             this code causes undefined behavior when executed
[INFO] [stdout]     |                             help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done
[INFO] [stdout]     |
[INFO] [stdout]     = note: raw pointers must be initialized
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the type `XWindowAttributes` does not permit being left uninitialized
[INFO] [stdout]    --> src/core/x.rs:194:29
[INFO] [stdout]     |
[INFO] [stdout] 194 |             let mut attrs = mem::MaybeUninit::uninit().assume_init();
[INFO] [stdout]     |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |                             |
[INFO] [stdout]     |                             this code causes undefined behavior when executed
[INFO] [stdout]     |                             help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done
[INFO] [stdout]     |
[INFO] [stdout]     = note: integers must be initialized
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 12.15s
[INFO] running `Command { std: "docker" "inspect" "a7bda480161553c5d558375d70565570807d5e3c20b0f084bcc2339fa39f4b99", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a7bda480161553c5d558375d70565570807d5e3c20b0f084bcc2339fa39f4b99", kill_on_drop: false }`
[INFO] [stdout] a7bda480161553c5d558375d70565570807d5e3c20b0f084bcc2339fa39f4b99
