Fix stack overflow when printing shader error

Fixes #3238.

CHANGELOG.md

@@ -34,6 +34,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Block selection starting from first column after beginning leaves the scrollback
 - Incorrect selection status of the first cell when selection is off screen
 - Backwards bracket selection
+- Stack overflow when printing shader creation error
 
 ### Removed
 

alacritty/src/renderer/mod.rs

@@ -88,7 +88,11 @@ impl std::error::Error for Error {
 
 impl Display for Error {
     fn fmt(&self, f: &mut Formatter<'_>) -> fmt::Result {
-        write!(f, "There was an error initializing the shaders: {}", self)
+        match self {
+            Error::ShaderCreation(err) => {
+                write!(f, "There was an error initializing the shaders: {}", err)
+            },
+        }
     }
 }