diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 589c7722..493cad31 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -22,7 +22,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        rust_version: [stable, nightly]
+        rust_version: [1.57.0, stable, nightly]
         platform:
           # Note: Make sure that we test all the `docs.rs` targets defined in Cargo.toml!
           - { target: x86_64-pc-windows-msvc,   os: windows-latest,  }
@@ -103,7 +103,7 @@ jobs:
 
     - name: Lint with clippy
       shell: bash
-      if: (matrix.rust_version != 'nightly') && !contains(matrix.platform.options, '--no-default-features')
+      if: (matrix.rust_version == '1.57.0') && !contains(matrix.platform.options, '--no-default-features')
       run: cargo clippy --all-targets --target ${{ matrix.platform.target }} $OPTIONS --features $FEATURES -- -Dwarnings
 
     - name: Build with serde enabled
diff --git a/CHANGELOG.md b/CHANGELOG.md
index d873f0e2..4c968c6d 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -8,6 +8,8 @@ And please only add new entries to the top of this list, right below the `# Unre
 
 # Unreleased
 
+- The minimum supported Rust version was lowered to `1.57.0` and now explicitly tested.
+
 # 0.27.0 (2022-07-26)
 
 - On Windows, fix hiding a maximized window.
diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 5f90b74d..021d8a04 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -20,6 +20,7 @@ your description of the issue as detailed as possible:
 
 When making a code contribution to winit, before opening your pull request, please make sure that:
 
+- your patch builds with Winit's minimal supported rust version - Rust 1.57.0.
 - you tested your modifications on all the platforms impacted, or if not possible detail which platforms
   were not tested, and what should be tested, so that a maintainer or another contributor can test them
 - you updated any relevant documentation in winit
diff --git a/Cargo.toml b/Cargo.toml
index b04a8a9f..34944f32 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -10,6 +10,7 @@ readme = "README.md"
 repository = "https://github.com/rust-windowing/winit"
 documentation = "https://docs.rs/winit"
 categories = ["gui"]
+rust-version = "1.57.0"
 
 [package.metadata.docs.rs]
 features = ["serde"]
diff --git a/examples/fullscreen.rs b/examples/fullscreen.rs
index 212bd755..6bfda4c2 100644
--- a/examples/fullscreen.rs
+++ b/examples/fullscreen.rs
@@ -59,12 +59,12 @@ fn main() {
                     }
                     VirtualKeyCode::F => {
                         let fullscreen = Some(Fullscreen::Exclusive(mode.clone()));
-                        println!("Setting mode: {fullscreen:?}");
+                        println!("Setting mode: {:?}", fullscreen);
                         window.set_fullscreen(fullscreen);
                     }
                     VirtualKeyCode::B => {
                         let fullscreen = Some(Fullscreen::Borderless(Some(monitor.clone())));
-                        println!("Setting mode: {fullscreen:?}");
+                        println!("Setting mode: {:?}", fullscreen);
                         window.set_fullscreen(fullscreen);
                     }
                     VirtualKeyCode::S => {
diff --git a/src/platform/unix.rs b/src/platform/unix.rs
index 60a40a0f..1d33e846 100644
--- a/src/platform/unix.rs
+++ b/src/platform/unix.rs
@@ -299,10 +299,11 @@ impl WindowExtUnix for Window {
     #[inline]
     #[cfg(feature = "wayland")]
     fn wayland_set_csd_theme(&self, theme: Theme) {
+        #[allow(clippy::single_match)]
         match self.window {
             LinuxWindow::Wayland(ref w) => w.set_csd_theme(theme),
             #[cfg(feature = "x11")]
-            _ => {}
+            _ => (),
         }
     }
 
diff --git a/src/platform_impl/ios/app_state.rs b/src/platform_impl/ios/app_state.rs
index 55ed3e98..05860844 100644
--- a/src/platform_impl/ios/app_state.rs
+++ b/src/platform_impl/ios/app_state.rs
@@ -793,7 +793,7 @@ pub unsafe fn handle_main_events_cleared() {
         return;
     }
     match this.state_mut() {
-        &mut AppStateImpl::ProcessingEvents { .. } => {}
+        AppStateImpl::ProcessingEvents { .. } => {}
         _ => bug!("`ProcessingRedraws` happened unexpectedly"),
     };
     drop(this);
diff --git a/src/platform_impl/linux/mod.rs b/src/platform_impl/linux/mod.rs
index d73eb725..f3c9e9c2 100644
--- a/src/platform_impl/linux/mod.rs
+++ b/src/platform_impl/linux/mod.rs
@@ -587,7 +587,8 @@ impl Window {
 
 /// Hooks for X11 errors.
 #[cfg(feature = "x11")]
-pub(crate) static mut XLIB_ERROR_HOOKS: Mutex<Vec<XlibErrorHook>> = Mutex::new(Vec::new());
+pub(crate) static mut XLIB_ERROR_HOOKS: Lazy<Mutex<Vec<XlibErrorHook>>> =
+    Lazy::new(|| Mutex::new(Vec::new()));
 
 #[cfg(feature = "x11")]
 unsafe extern "C" fn x_error_callback(
@@ -633,7 +634,7 @@ unsafe extern "C" fn x_error_callback(
 
 pub enum EventLoop<T: 'static> {
     #[cfg(feature = "wayland")]
-    Wayland(wayland::EventLoop<T>),
+    Wayland(Box<wayland::EventLoop<T>>),
     #[cfg(feature = "x11")]
     X(x11::EventLoop<T>),
 }
@@ -723,7 +724,7 @@ impl<T: 'static> EventLoop<T> {
 
     #[cfg(feature = "wayland")]
     fn new_wayland_any_thread() -> Result<EventLoop<T>, Box<dyn Error>> {
-        wayland::EventLoop::new().map(EventLoop::Wayland)
+        wayland::EventLoop::new().map(|evlp| EventLoop::Wayland(Box::new(evlp)))
     }
 
     #[cfg(feature = "x11")]