[INFO] cloning repository https://github.com/kkspeed/metal-placebo
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kkspeed/metal-placebo" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkkspeed%2Fmetal-placebo", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkkspeed%2Fmetal-placebo'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 63665057c8369a620fb33fc8d85c1c99a3de81ea
[INFO] checking kkspeed/metal-placebo against master#33fdb797f59421c7bbecaa4588ed5d7a31a9494a for pr-87190-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkkspeed%2Fmetal-placebo" "/workspace/builds/worker-34/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-34/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/kkspeed/metal-placebo on toolchain 33fdb797f59421c7bbecaa4588ed5d7a31a9494a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/kkspeed/metal-placebo
[INFO] finished tweaking git repo https://github.com/kkspeed/metal-placebo
[INFO] tweaked toml for git repo https://github.com/kkspeed/metal-placebo written to /workspace/builds/worker-34/source/Cargo.toml
[INFO] crate git repo https://github.com/kkspeed/metal-placebo already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
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[INFO] [stderr]   Downloaded num v0.1.36
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-34/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-34/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8c211155f2ba1f84c50884adc740bc0b363cd5823d94910791f198d31dc3657e
[INFO] running `Command { std: "docker" "start" "-a" "8c211155f2ba1f84c50884adc740bc0b363cd5823d94910791f198d31dc3657e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8c211155f2ba1f84c50884adc740bc0b363cd5823d94910791f198d31dc3657e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8c211155f2ba1f84c50884adc740bc0b363cd5823d94910791f198d31dc3657e", kill_on_drop: false }`
[INFO] [stdout] 8c211155f2ba1f84c50884adc740bc0b363cd5823d94910791f198d31dc3657e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-34/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-34/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 730bfd375152671d2d66b99af696f70328750ae5c57ba869df1bf8c96766b8d5
[INFO] running `Command { std: "docker" "start" "-a" "730bfd375152671d2d66b99af696f70328750ae5c57ba869df1bf8c96766b8d5", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking num-traits v0.1.36
[INFO] [stderr]     Checking serde v0.8.22
[INFO] [stderr]    Compiling error-chain v0.7.2
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking winapi v0.2.8
[INFO] [stderr]    Compiling toml v0.2.1
[INFO] [stderr]     Checking libc v0.2.19
[INFO] [stderr]     Checking traitobject v0.0.3
[INFO] [stderr]     Checking quick-error v1.1.0
[INFO] [stderr]     Checking dtoa v0.2.2
[INFO] [stderr]     Checking log v0.3.6
[INFO] [stderr]     Checking log-mdc v0.1.0
[INFO] [stderr]     Checking fnv v1.0.5
[INFO] [stderr]     Checking antidote v1.0.0
[INFO] [stderr]     Checking rustc-serialize v0.3.22
[INFO] [stderr]     Checking crossbeam v0.2.10
[INFO] [stderr]    Compiling kernel32-sys v0.2.2
[INFO] [stderr]     Checking unreachable v0.1.1
[INFO] [stderr]     Checking humantime v1.0.0
[INFO] [stderr]     Checking unsafe-any v0.4.1
[INFO] [stderr]     Checking typemap v0.3.3
[INFO] [stderr]    Compiling metadeps v1.1.1
[INFO] [stderr]     Checking time v0.1.35
[INFO] [stderr]     Checking num-integer v0.1.32
[INFO] [stderr]     Checking ordered-float v0.2.3
[INFO] [stderr]     Checking num-iter v0.1.32
[INFO] [stderr]     Checking mustache v0.8.0
[INFO] [stderr]     Checking num v0.1.36
[INFO] [stderr]     Checking serde_test v0.8.22
[INFO] [stderr]     Checking serde-value v0.3.1
[INFO] [stderr]     Checking chrono v0.2.25
[INFO] [stderr]    Compiling x11 v2.12.0
[INFO] [stderr]     Checking linked-hash-map v0.3.0
[INFO] [stderr]     Checking yaml-rust v0.3.5
[INFO] [stderr]     Checking serde_yaml v0.5.0
[INFO] [stderr]     Checking log4rs v0.5.2
[INFO] [stderr]     Checking rswm v0.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/util.rs:57:24
[INFO] [stdout]    |
[INFO] [stdout] 57 |     let mut list: *mut (*mut c_char) = unsafe { zeroed() };
[INFO] [stdout]    |                        ^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::borrow::Cow`
[INFO] [stdout]  --> src/client.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::borrow::Cow;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/client.rs:589:35
[INFO] [stdout]     |
[INFO] [stdout] 589 |                       predicate: &Fn(&Self::Item) -> bool,
[INFO] [stdout]     |                                   ^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&Self::Item) -> bool`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/client.rs:591:36
[INFO] [stdout]     |
[INFO] [stdout] 591 |                       yes_action: &Fn(&mut Self::Item),
[INFO] [stdout]     |                                    ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&mut Self::Item)`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/client.rs:592:35
[INFO] [stdout]     |
[INFO] [stdout] 592 |                       no_action: &Fn(&mut Self::Item))
[INFO] [stdout]     |                                   ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&mut Self::Item)`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/client.rs:619:35
[INFO] [stdout]     |
[INFO] [stdout] 619 |                       predicate: &Fn(&ClientW) -> bool,
[INFO] [stdout]     |                                   ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&ClientW) -> bool`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/client.rs:621:36
[INFO] [stdout]     |
[INFO] [stdout] 621 |                       yes_action: &Fn(&mut ClientW),
[INFO] [stdout]     |                                    ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&mut ClientW)`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/client.rs:622:35
[INFO] [stdout]     |
[INFO] [stdout] 622 |                       no_action: &Fn(&mut ClientW))
[INFO] [stdout]     |                                   ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&mut ClientW)`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `FullScreen`, `Overview`
[INFO] [stdout]   --> src/core.rs:15:14
[INFO] [stdout]    |
[INFO] [stdout] 15 | use layout::{FullScreen, Layout, Overview, Tile};
[INFO] [stdout]    |              ^^^^^^^^^^          ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/core.rs:23:59
[INFO] [stdout]    |
[INFO] [stdout] 23 | fn lookup_layout(config: Rc<Config>, tag: c_uchar) -> Box<Layout + 'static> {
[INFO] [stdout]    |                                                           ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Layout + 'static`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/core.rs:122:17
[INFO] [stdout]     |
[INFO] [stdout] 122 |     logger: Box<Logger + 'static>,
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Logger + 'static`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/core.rs:318:46
[INFO] [stdout]     |
[INFO] [stdout] 318 |     pub fn set_logger(&mut self, logger: Box<Logger + 'static>) {
[INFO] [stdout]     |                                              ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Logger + 'static`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ClientL`
[INFO] [stdout]  --> src/config.rs:7:14
[INFO] [stdout]   |
[INFO] [stdout] 7 | use client::{ClientL, ClientW};
[INFO] [stdout]   |              ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/config.rs:22:25
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub type WmAction = Box<Fn(&mut WindowManager)>;
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&mut WindowManager)`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/config.rs:23:32
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub type ClientPredicate = Box<Fn(&ClientW) -> bool>;
[INFO] [stdout]    |                                ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&ClientW) -> bool`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/config.rs:24:29
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub type ClientAction = Box<Fn(&mut ClientW)>;
[INFO] [stdout]    |                             ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&mut ClientW)`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/config.rs:25:28
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub type StartAction = Box<Fn()>;
[INFO] [stdout]    |                            ^^^^ help: use `dyn`: `dyn Fn()`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/config.rs:42:39
[INFO] [stdout]    |
[INFO] [stdout] 42 |     pub tag_layout: Vec<(c_uchar, Box<Layout + 'static>)>,
[INFO] [stdout]    |                                       ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Layout + 'static`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/config.rs:175:59
[INFO] [stdout]     |
[INFO] [stdout] 175 |     pub fn tag_layout(mut self, layout: Vec<(c_uchar, Box<Layout + 'static>)>) -> Config {
[INFO] [stdout]     |                                                           ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Layout + 'static`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `mustache::MapBuilder`
[INFO] [stdout]  --> src/loggers.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use mustache::MapBuilder;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io::Write`
[INFO] [stdout]  --> src/layout.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::io::Write;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/layout.rs:16:35
[INFO] [stdout]    |
[INFO] [stdout] 16 |     fn clone_layout(&self) -> Box<Layout>;
[INFO] [stdout]    |                                   ^^^^^^ help: use `dyn`: `dyn Layout`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/layout.rs:22:35
[INFO] [stdout]    |
[INFO] [stdout] 22 |     fn clone_layout(&self) -> Box<Layout> {
[INFO] [stdout]    |                                   ^^^^^^ help: use `dyn`: `dyn Layout`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/util.rs:57:24
[INFO] [stdout]    |
[INFO] [stdout] 57 |     let mut list: *mut (*mut c_char) = unsafe { zeroed() };
[INFO] [stdout]    |                        ^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/layout.rs:27:20
[INFO] [stdout]    |
[INFO] [stdout] 27 | impl Clone for Box<Layout> {
[INFO] [stdout]    |                    ^^^^^^ help: use `dyn`: `dyn Layout`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::borrow::Cow`
[INFO] [stdout]  --> src/client.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::borrow::Cow;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/layout.rs:28:28
[INFO] [stdout]    |
[INFO] [stdout] 28 |     fn clone(&self) -> Box<Layout> {
[INFO] [stdout]    |                            ^^^^^^ help: use `dyn`: `dyn Layout`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/client.rs:589:35
[INFO] [stdout]     |
[INFO] [stdout] 589 |                       predicate: &Fn(&Self::Item) -> bool,
[INFO] [stdout]     |                                   ^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&Self::Item) -> bool`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/layout.rs:148:21
[INFO] [stdout]     |
[INFO] [stdout] 148 |     pub layout: Box<Layout>,
[INFO] [stdout]     |                     ^^^^^^ help: use `dyn`: `dyn Layout`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io::Write`
[INFO] [stdout]  --> src/workspace.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::io::Write;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/client.rs:591:36
[INFO] [stdout]     |
[INFO] [stdout] 591 |                       yes_action: &Fn(&mut Self::Item),
[INFO] [stdout]     |                                    ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&mut Self::Item)`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `c_int`
[INFO] [stdout]  --> src/workspace.rs:4:20
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::os::raw::{c_int, c_uchar, c_uint};
[INFO] [stdout]   |                    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/workspace.rs:27:17
[INFO] [stdout]    |
[INFO] [stdout] 27 |     layout: Box<Layout + 'static>,
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Layout + 'static`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/client.rs:592:35
[INFO] [stdout]     |
[INFO] [stdout] 592 |                       no_action: &Fn(&mut Self::Item))
[INFO] [stdout]     |                                   ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&mut Self::Item)`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/workspace.rs:38:21
[INFO] [stdout]    |
[INFO] [stdout] 38 |         layout: Box<Layout + 'static>,
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Layout + 'static`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/client.rs:619:35
[INFO] [stdout]     |
[INFO] [stdout] 619 |                       predicate: &Fn(&ClientW) -> bool,
[INFO] [stdout]     |                                   ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&ClientW) -> bool`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/workspace.rs:252:41
[INFO] [stdout]     |
[INFO] [stdout] 252 |     pub fn select_clients(&self, pred: &Fn(&ClientW) -> bool) -> Vec<ClientW> {
[INFO] [stdout]     |                                         ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&ClientW) -> bool`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/client.rs:621:36
[INFO] [stdout]     |
[INFO] [stdout] 621 |                       yes_action: &Fn(&mut ClientW),
[INFO] [stdout]     |                                    ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&mut ClientW)`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/workspace.rs:365:20
[INFO] [stdout]     |
[INFO] [stdout] 365 |     prev_iter: Box<Iterator<Item = &'a ClientW> + 'a>,
[INFO] [stdout]     |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = &'a ClientW> + 'a`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/client.rs:622:35
[INFO] [stdout]     |
[INFO] [stdout] 622 |                       no_action: &Fn(&mut ClientW))
[INFO] [stdout]     |                                   ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&mut ClientW)`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/workspace.rs:366:20
[INFO] [stdout]     |
[INFO] [stdout] 366 |     next_iter: Box<Iterator<Item = &'a ClientW> + 'a>,
[INFO] [stdout]     |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = &'a ClientW> + 'a`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `FullScreen`, `Overview`
[INFO] [stdout]   --> src/core.rs:15:14
[INFO] [stdout]    |
[INFO] [stdout] 15 | use layout::{FullScreen, Layout, Overview, Tile};
[INFO] [stdout]    |              ^^^^^^^^^^          ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/workspace.rs:385:20
[INFO] [stdout]     |
[INFO] [stdout] 385 |     prev_iter: Box<Iterator<Item = &'a mut ClientW> + 'a>,
[INFO] [stdout]     |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = &'a mut ClientW> + 'a`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/core.rs:23:59
[INFO] [stdout]    |
[INFO] [stdout] 23 | fn lookup_layout(config: Rc<Config>, tag: c_uchar) -> Box<Layout + 'static> {
[INFO] [stdout]    |                                                           ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Layout + 'static`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/workspace.rs:386:20
[INFO] [stdout]     |
[INFO] [stdout] 386 |     next_iter: Box<Iterator<Item = &'a mut ClientW> + 'a>,
[INFO] [stdout]     |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = &'a mut ClientW> + 'a`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/prompt.rs:33:9
[INFO] [stdout]    |
[INFO] [stdout] 33 |         try!(child.wait());
[INFO] [stdout]    |         ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/prompt.rs:35:9
[INFO] [stdout]    |
[INFO] [stdout] 35 |         try!(child.stdout.unwrap().read_to_string(&mut result));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/prompt.rs:25:25
[INFO] [stdout]    |
[INFO] [stdout] 25 |         let mut child = try!(process::Command::new("dmenu")
[INFO] [stdout]    |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/prompt.rs:31:13
[INFO] [stdout]    |
[INFO] [stdout] 31 |             try!(writeln!(child.stdin.as_mut().unwrap(), "{}", c));
[INFO] [stdout]    |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/core.rs:122:17
[INFO] [stdout]     |
[INFO] [stdout] 122 |     logger: Box<Logger + 'static>,
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Logger + 'static`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/core.rs:318:46
[INFO] [stdout]     |
[INFO] [stdout] 318 |     pub fn set_logger(&mut self, logger: Box<Logger + 'static>) {
[INFO] [stdout]     |                                              ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Logger + 'static`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ClientL`
[INFO] [stdout]  --> src/config.rs:7:14
[INFO] [stdout]   |
[INFO] [stdout] 7 | use client::{ClientL, ClientW};
[INFO] [stdout]   |              ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/config.rs:22:25
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub type WmAction = Box<Fn(&mut WindowManager)>;
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&mut WindowManager)`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/config.rs:23:32
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub type ClientPredicate = Box<Fn(&ClientW) -> bool>;
[INFO] [stdout]    |                                ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&ClientW) -> bool`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/config.rs:24:29
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub type ClientAction = Box<Fn(&mut ClientW)>;
[INFO] [stdout]    |                             ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&mut ClientW)`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/config.rs:25:28
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub type StartAction = Box<Fn()>;
[INFO] [stdout]    |                            ^^^^ help: use `dyn`: `dyn Fn()`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/config.rs:42:39
[INFO] [stdout]    |
[INFO] [stdout] 42 |     pub tag_layout: Vec<(c_uchar, Box<Layout + 'static>)>,
[INFO] [stdout]    |                                       ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Layout + 'static`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/config.rs:175:59
[INFO] [stdout]     |
[INFO] [stdout] 175 |     pub fn tag_layout(mut self, layout: Vec<(c_uchar, Box<Layout + 'static>)>) -> Config {
[INFO] [stdout]     |                                                           ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Layout + 'static`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `mustache::MapBuilder`
[INFO] [stdout]  --> src/loggers.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use mustache::MapBuilder;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io::Write`
[INFO] [stdout]  --> src/layout.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::io::Write;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/layout.rs:16:35
[INFO] [stdout]    |
[INFO] [stdout] 16 |     fn clone_layout(&self) -> Box<Layout>;
[INFO] [stdout]    |                                   ^^^^^^ help: use `dyn`: `dyn Layout`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/layout.rs:22:35
[INFO] [stdout]    |
[INFO] [stdout] 22 |     fn clone_layout(&self) -> Box<Layout> {
[INFO] [stdout]    |                                   ^^^^^^ help: use `dyn`: `dyn Layout`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/layout.rs:27:20
[INFO] [stdout]    |
[INFO] [stdout] 27 | impl Clone for Box<Layout> {
[INFO] [stdout]    |                    ^^^^^^ help: use `dyn`: `dyn Layout`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/layout.rs:28:28
[INFO] [stdout]    |
[INFO] [stdout] 28 |     fn clone(&self) -> Box<Layout> {
[INFO] [stdout]    |                            ^^^^^^ help: use `dyn`: `dyn Layout`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/layout.rs:148:21
[INFO] [stdout]     |
[INFO] [stdout] 148 |     pub layout: Box<Layout>,
[INFO] [stdout]     |                     ^^^^^^ help: use `dyn`: `dyn Layout`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io::Write`
[INFO] [stdout]  --> src/workspace.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::io::Write;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `c_int`
[INFO] [stdout]  --> src/workspace.rs:4:20
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::os::raw::{c_int, c_uchar, c_uint};
[INFO] [stdout]   |                    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/workspace.rs:27:17
[INFO] [stdout]    |
[INFO] [stdout] 27 |     layout: Box<Layout + 'static>,
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Layout + 'static`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/workspace.rs:38:21
[INFO] [stdout]    |
[INFO] [stdout] 38 |         layout: Box<Layout + 'static>,
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Layout + 'static`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/workspace.rs:252:41
[INFO] [stdout]     |
[INFO] [stdout] 252 |     pub fn select_clients(&self, pred: &Fn(&ClientW) -> bool) -> Vec<ClientW> {
[INFO] [stdout]     |                                         ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&ClientW) -> bool`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/workspace.rs:365:20
[INFO] [stdout]     |
[INFO] [stdout] 365 |     prev_iter: Box<Iterator<Item = &'a ClientW> + 'a>,
[INFO] [stdout]     |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = &'a ClientW> + 'a`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/workspace.rs:366:20
[INFO] [stdout]     |
[INFO] [stdout] 366 |     next_iter: Box<Iterator<Item = &'a ClientW> + 'a>,
[INFO] [stdout]     |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = &'a ClientW> + 'a`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/workspace.rs:385:20
[INFO] [stdout]     |
[INFO] [stdout] 385 |     prev_iter: Box<Iterator<Item = &'a mut ClientW> + 'a>,
[INFO] [stdout]     |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = &'a mut ClientW> + 'a`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/workspace.rs:386:20
[INFO] [stdout]     |
[INFO] [stdout] 386 |     next_iter: Box<Iterator<Item = &'a mut ClientW> + 'a>,
[INFO] [stdout]     |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = &'a mut ClientW> + 'a`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/prompt.rs:33:9
[INFO] [stdout]    |
[INFO] [stdout] 33 |         try!(child.wait());
[INFO] [stdout]    |         ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/prompt.rs:35:9
[INFO] [stdout]    |
[INFO] [stdout] 35 |         try!(child.stdout.unwrap().read_to_string(&mut result));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/prompt.rs:25:25
[INFO] [stdout]    |
[INFO] [stdout] 25 |         let mut child = try!(process::Command::new("dmenu")
[INFO] [stdout]    |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/prompt.rs:31:13
[INFO] [stdout]    |
[INFO] [stdout] 31 |             try!(writeln!(child.stdin.as_mut().unwrap(), "{}", c));
[INFO] [stdout]    |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `event`
[INFO] [stdout]     --> src/core.rs:1106:36
[INFO] [stdout]      |
[INFO] [stdout] 1106 |     fn on_expose_notify(&mut self, event: xlib::XExposeEvent) {
[INFO] [stdout]      |                                    ^^^^^ help: if this is intentional, prefix it with an underscore: `_event`
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `event`
[INFO] [stdout]     --> src/core.rs:1176:36
[INFO] [stdout]      |
[INFO] [stdout] 1176 |     fn on_motion_notify(&mut self, event: xlib::XMotionEvent) {
[INFO] [stdout]      |                                    ^^^^^ help: if this is intentional, prefix it with an underscore: `_event`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `tag`
[INFO] [stdout]     --> src/core.rs:1187:25
[INFO] [stdout]      |
[INFO] [stdout] 1187 |                     let tag = c.tag();
[INFO] [stdout]      |                         ^^^ help: if this is intentional, prefix it with an underscore: `_tag`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `w`
[INFO] [stdout]   --> src/config.rs:50:53
[INFO] [stdout]    |
[INFO] [stdout] 50 |             vec![(mod_mask, keysym::XK_q, Box::new(|w| process::exit(0))),
[INFO] [stdout]    |                                                     ^ help: if this is intentional, prefix it with an underscore: `_w`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `global_config`
[INFO] [stdout]    --> src/loggers.rs:128:13
[INFO] [stdout]     |
[INFO] [stdout] 128 |             global_config: &Config,
[INFO] [stdout]     |             ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_global_config`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `message`
[INFO] [stdout]   --> src/layout.rs:12:20
[INFO] [stdout]    |
[INFO] [stdout] 12 |     fn post(&self, message: &str, window_manager: &mut core::WindowManager) {}
[INFO] [stdout]    |                    ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_message`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `window_manager`
[INFO] [stdout]   --> src/layout.rs:12:35
[INFO] [stdout]    |
[INFO] [stdout] 12 |     fn post(&self, message: &str, window_manager: &mut core::WindowManager) {}
[INFO] [stdout]    |                                   ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_window_manager`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `config`
[INFO] [stdout]   --> src/layout.rs:91:28
[INFO] [stdout]    |
[INFO] [stdout] 91 |     fn layout_rects(&self, config: Rc<Config>, n: usize, rect: Rect) -> Vec<Rect> {
[INFO] [stdout]    |                            ^^^^^^ help: if this is intentional, prefix it with an underscore: `_config`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `event`
[INFO] [stdout]     --> src/core.rs:1106:36
[INFO] [stdout]      |
[INFO] [stdout] 1106 |     fn on_expose_notify(&mut self, event: xlib::XExposeEvent) {
[INFO] [stdout]      |                                    ^^^^^ help: if this is intentional, prefix it with an underscore: `_event`
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `event`
[INFO] [stdout]     --> src/core.rs:1176:36
[INFO] [stdout]      |
[INFO] [stdout] 1176 |     fn on_motion_notify(&mut self, event: xlib::XMotionEvent) {
[INFO] [stdout]      |                                    ^^^^^ help: if this is intentional, prefix it with an underscore: `_event`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `tag`
[INFO] [stdout]     --> src/core.rs:1187:25
[INFO] [stdout]      |
[INFO] [stdout] 1187 |                     let tag = c.tag();
[INFO] [stdout]      |                         ^^^ help: if this is intentional, prefix it with an underscore: `_tag`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `w`
[INFO] [stdout]   --> src/config.rs:50:53
[INFO] [stdout]    |
[INFO] [stdout] 50 |             vec![(mod_mask, keysym::XK_q, Box::new(|w| process::exit(0))),
[INFO] [stdout]    |                                                     ^ help: if this is intentional, prefix it with an underscore: `_w`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `global_config`
[INFO] [stdout]    --> src/loggers.rs:128:13
[INFO] [stdout]     |
[INFO] [stdout] 128 |             global_config: &Config,
[INFO] [stdout]     |             ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_global_config`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `message`
[INFO] [stdout]   --> src/layout.rs:12:20
[INFO] [stdout]    |
[INFO] [stdout] 12 |     fn post(&self, message: &str, window_manager: &mut core::WindowManager) {}
[INFO] [stdout]    |                    ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_message`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `window_manager`
[INFO] [stdout]   --> src/layout.rs:12:35
[INFO] [stdout]    |
[INFO] [stdout] 12 |     fn post(&self, message: &str, window_manager: &mut core::WindowManager) {}
[INFO] [stdout]    |                                   ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_window_manager`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `config`
[INFO] [stdout]   --> src/layout.rs:91:28
[INFO] [stdout]    |
[INFO] [stdout] 91 |     fn layout_rects(&self, config: Rc<Config>, n: usize, rect: Rect) -> Vec<Rect> {
[INFO] [stdout]    |                            ^^^^^^ help: if this is intentional, prefix it with an underscore: `_config`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/core.rs:865:17
[INFO] [stdout]     |
[INFO] [stdout] 865 |         for (_, mut w) in self.workspaces.iter_mut() {
[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: variable does not need to be mutable
[INFO] [stdout]    --> src/core.rs:865:17
[INFO] [stdout]     |
[INFO] [stdout] 865 |         for (_, mut w) in self.workspaces.iter_mut() {
[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: variable does not need to be mutable
[INFO] [stdout]     --> src/core.rs:1181:21
[INFO] [stdout]      |
[INFO] [stdout] 1181 |         if let Some(mut c) = self.get_client_by_window(event.window).as_mut() {
[INFO] [stdout]      |                     ----^
[INFO] [stdout]      |                     |
[INFO] [stdout]      |                     help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]     --> src/core.rs:1181:21
[INFO] [stdout]      |
[INFO] [stdout] 1181 |         if let Some(mut c) = self.get_client_by_window(event.window).as_mut() {
[INFO] [stdout]      |                     ----^
[INFO] [stdout]      |                     |
[INFO] [stdout]      |                     help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `anchor_window`
[INFO] [stdout]   --> src/client.rs:63:5
[INFO] [stdout]    |
[INFO] [stdout] 63 |     anchor_window: xlib::Window,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `anchor_window`
[INFO] [stdout]   --> src/client.rs:63:5
[INFO] [stdout]    |
[INFO] [stdout] 63 |     anchor_window: xlib::Window,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `is_dialog`
[INFO] [stdout]   --> src/client.rs:72:5
[INFO] [stdout]    |
[INFO] [stdout] 72 |     is_dialog: bool,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `is_dialog`
[INFO] [stdout]   --> src/client.rs:72:5
[INFO] [stdout]    |
[INFO] [stdout] 72 |     is_dialog: bool,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `old_border`
[INFO] [stdout]   --> src/client.rs:88:5
[INFO] [stdout]    |
[INFO] [stdout] 88 |     old_border: c_int,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `old_border`
[INFO] [stdout]   --> src/client.rs:88:5
[INFO] [stdout]    |
[INFO] [stdout] 88 |     old_border: c_int,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `TRACE`
[INFO] [stdout]   --> src/core.rs:21:1
[INFO] [stdout]    |
[INFO] [stdout] 21 | const TRACE: bool = true;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `TRACE`
[INFO] [stdout]   --> src/core.rs:21:1
[INFO] [stdout]    |
[INFO] [stdout] 21 | const TRACE: bool = true;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `peek`
[INFO] [stdout]   --> src/core.rs:74:8
[INFO] [stdout]    |
[INFO] [stdout] 74 |     fn peek(&self) -> Option<&ClientW> {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `peek`
[INFO] [stdout]   --> src/core.rs:74:8
[INFO] [stdout]    |
[INFO] [stdout] 74 |     fn peek(&self) -> Option<&ClientW> {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `screen`
[INFO] [stdout]    --> src/core.rs:113:5
[INFO] [stdout]     |
[INFO] [stdout] 113 |     screen: c_int,
[INFO] [stdout]     |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `screen`
[INFO] [stdout]    --> src/core.rs:113:5
[INFO] [stdout]     |
[INFO] [stdout] 113 |     screen: c_int,
[INFO] [stdout]     |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `current_returned`
[INFO] [stdout]    --> src/workspace.rs:367:5
[INFO] [stdout]     |
[INFO] [stdout] 367 |     current_returned: bool,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `current_returned`
[INFO] [stdout]    --> src/workspace.rs:367:5
[INFO] [stdout]     |
[INFO] [stdout] 367 |     current_returned: bool,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `net_wm_state_sticky`
[INFO] [stdout]   --> src/atoms.rs:55:8
[INFO] [stdout]    |
[INFO] [stdout] 55 | pub fn net_wm_state_sticky() -> xlib::Atom {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `net_wm_state_sticky`
[INFO] [stdout]   --> src/atoms.rs:55:8
[INFO] [stdout]    |
[INFO] [stdout] 55 | pub fn net_wm_state_sticky() -> xlib::Atom {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: getting the inner pointer of a temporary `CString`
[INFO] [stdout]    --> src/atoms.rs:152:69
[INFO] [stdout]     |
[INFO] [stdout] 152 |     unsafe { xlib::XInternAtom(display, CString::new(atom).unwrap().as_ptr(), 0) }
[INFO] [stdout]     |                                         --------------------------- ^^^^^^ this pointer will be invalid
[INFO] [stdout]     |                                         |
[INFO] [stdout]     |                                         this `CString` is deallocated at the end of the statement, bind it to a variable to extend its lifetime
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(temporary_cstring_as_ptr)]` on by default
[INFO] [stdout]     = note: pointers do not have a lifetime; when calling `as_ptr` the `CString` will be deallocated at the end of the statement because nothing is referencing it as far as the type system is concerned
[INFO] [stdout]     = help: for more information, see https://doc.rust-lang.org/reference/destructors.html
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: getting the inner pointer of a temporary `CString`
[INFO] [stdout]    --> src/atoms.rs:152:69
[INFO] [stdout]     |
[INFO] [stdout] 152 |     unsafe { xlib::XInternAtom(display, CString::new(atom).unwrap().as_ptr(), 0) }
[INFO] [stdout]     |                                         --------------------------- ^^^^^^ this pointer will be invalid
[INFO] [stdout]     |                                         |
[INFO] [stdout]     |                                         this `CString` is deallocated at the end of the statement, bind it to a variable to extend its lifetime
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(temporary_cstring_as_ptr)]` on by default
[INFO] [stdout]     = note: pointers do not have a lifetime; when calling `as_ptr` the `CString` will be deallocated at the end of the statement because nothing is referencing it as far as the type system is concerned
[INFO] [stdout]     = help: for more information, see https://doc.rust-lang.org/reference/destructors.html
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/loggers.rs:173:9
[INFO] [stdout]     |
[INFO] [stdout] 173 | /         write!(self.child.stdin.as_mut().unwrap(),
[INFO] [stdout] 174 | |                "{}",
[INFO] [stdout] 175 | |                self.config.separator);
[INFO] [stdout]     | |______________________________________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/loggers.rs:173:9
[INFO] [stdout]     |
[INFO] [stdout] 173 | /         write!(self.child.stdin.as_mut().unwrap(),
[INFO] [stdout] 174 | |                "{}",
[INFO] [stdout] 175 | |                self.config.separator);
[INFO] [stdout]     | |______________________________________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/loggers.rs:196:9
[INFO] [stdout]     |
[INFO] [stdout] 196 |         write!(self.child.stdin.as_mut().unwrap(), "\n");
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/loggers.rs:196:9
[INFO] [stdout]     |
[INFO] [stdout] 196 |         write!(self.child.stdin.as_mut().unwrap(), "\n");
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 60 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `rswm::client::ClientW`
[INFO] [stdout]   --> main.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use rswm::client::ClientW;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Layout`, `Tile`
[INFO] [stdout]   --> main.rs:17:20
[INFO] [stdout]    |
[INFO] [stdout] 17 | use rswm::layout::{Tile, Tile13, FullScreen, Overview, Layout};
[INFO] [stdout]    |                    ^^^^                                ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `rswm::client::ClientW`
[INFO] [stdout]   --> main.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use rswm::client::ClientW;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Layout`, `Tile`
[INFO] [stdout]   --> main.rs:17:20
[INFO] [stdout]    |
[INFO] [stdout] 17 | use rswm::layout::{Tile, Tile13, FullScreen, Overview, Layout};
[INFO] [stdout]    |                    ^^^^                                ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 60 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 19.40s
[INFO] running `Command { std: "docker" "inspect" "730bfd375152671d2d66b99af696f70328750ae5c57ba869df1bf8c96766b8d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "730bfd375152671d2d66b99af696f70328750ae5c57ba869df1bf8c96766b8d5", kill_on_drop: false }`
[INFO] [stdout] 730bfd375152671d2d66b99af696f70328750ae5c57ba869df1bf8c96766b8d5