1 files changed, 4 insertions, 4 deletions
diff --git a/library/alloc/src/fmt.rs b/library/alloc/src/fmt.rs
index e03b501ae4d..fb8d00e8d87 100644
--- a/library/alloc/src/fmt.rs
+++ b/library/alloc/src/fmt.rs
@@ -363,7 +363,7 @@
 //! # use std::fmt;
 //! # struct Foo; // our custom type
 //! # impl fmt::Display for Foo {
-//! fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
+//! fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
 //! # write!(f, "testing, testing")
 //! # } }
 //! ```
@@ -399,7 +399,7 @@
 //! }
 //!
 //! impl fmt::Display for Vector2D {
-//!     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
+//!     fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
 //!         // The `f` value implements the `Write` trait, which is what the
 //!         // write! macro is expecting. Note that this formatting ignores the
 //!         // various flags provided to format strings.
@@ -410,7 +410,7 @@
 //! // Different traits allow different forms of output of a type. The meaning
 //! // of this format is to print the magnitude of a vector.
 //! impl fmt::Binary for Vector2D {
-//!     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
+//!     fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
 //!         let magnitude = (self.x * self.x + self.y * self.y) as f64;
 //!         let magnitude = magnitude.sqrt();
 //!
@@ -517,7 +517,7 @@
 //! let mut some_writer = io::stdout();
 //! write!(&mut some_writer, "{}", format_args!("print with a {}", "macro"));
 //!
-//! fn my_fmt_fn(args: fmt::Arguments) {
+//! fn my_fmt_fn(args: fmt::Arguments<'_>) {
 //!     write!(&mut io::stdout(), "{args}");
 //! }
 //! my_fmt_fn(format_args!(", or a {} too", "function"));