Removed core-error feature.

MSRV now high enough that we don't need it

Author: thejpster

CHANGELOG.md

@@ -10,6 +10,7 @@ The format is based on [Keep a Changelog] and this project adheres to [Semantic
 
 - Updated to `defmt` 1.0.1, `embedded-hal-bus` 0.3.0, `env_logger` 0.11.8, `heapless` 0.9.1, and `hex-literal` 1.0.0.
 - Raised the minimum supported Rust version to 1.87.0.
+- Removed `core-error` feature as MSRV is now above 1.81
 
 ## [Version 0.9.0] - 2025-06-08
 

Cargo.toml

@@ -33,4 +33,4 @@ sha2 = "0.10"
 default = ["log"]
 defmt-log = ["dep:defmt"]
 log = ["dep:log"]
-core-error = []
+

src/lib.rs

@@ -68,8 +68,6 @@
 //! * `defmt-log`: By turning off the default features and enabling the
 //!   `defmt-log` feature you can configure this crate to log messages over defmt
 //!   instead.
-//! * `core-error`: Enables implementations of `core::error::Error` for all error
-//!   types. This raises the Minimum Supported Rust Version to 1.81.
 //!
 //! You cannot enable both the `log` feature and the `defmt-log` feature.
 
@@ -316,7 +314,6 @@ where
     }
 }
 
-#[cfg(feature = "core-error")]
 impl<E> core::error::Error for Error<E> where E: core::fmt::Debug + core::fmt::Display {}
 
 /// A handle to a volume.

src/sdcard/mod.rs

@@ -648,7 +648,6 @@ impl core::fmt::Display for Error {
     }
 }
 
-#[cfg(feature = "core-error")]
 impl core::error::Error for Error {}
 
 /// The different types of card we support.