Bump MSRV to 1.60, migrate to Rust 2021

CHANGELOG.md

@@ -6,6 +6,10 @@ and this project adheres to Rust's notion of
 [Semantic Versioning](https://semver.org/spec/v2.0.0.html). All versions prior
 to 1.0.0 are beta releases.
 
+## Unreleased
+- MSRV has been increased to 1.56.0
+- Bumped `secrecy` crate to 0.10
+
 ## [0.5.1] - 2024-08-31
 ### Fixed
 - Client requests are now correctly percent-encoded when necessary.

Cargo.toml

@@ -8,7 +8,8 @@ readme = "README.md"
 keywords = ["passphrase", "password"]
 categories = ["api-bindings", "command-line-interface"]
 license = "MIT OR Apache-2.0"
-edition = "2018"
+edition = "2021"
+rust-version = "1.60"
 
 [dependencies]
 log = "0.4"

rust-toolchain.toml

@@ -1,3 +1,3 @@
 [toolchain]
-channel = "1.51.0"
+channel = "1.60.0"
 components = ["clippy", "rustfmt"]

src/assuan.rs

@@ -184,8 +184,8 @@ mod read {
     use super::Response;
 
     fn gpg_error_code(input: &str) -> IResult<&str, u16> {
-        map(digit1, |code| {
-            let full = u32::from_str_radix(code, 10).expect("have decimal digits");
+        map(digit1, |code: &str| {
+            let full = code.parse::<u32>().expect("have decimal digits");
             // gpg uses the lowest 16 bits for error codes.
             full as u16
         })(input)

src/lib.rs

@@ -50,7 +50,7 @@
 //! ```
 
 // Catch documentation errors caused by code changes.
-#![deny(broken_intra_doc_links)]
+#![deny(rustdoc::broken_intra_doc_links)]
 #![deny(missing_docs)]
 
 use secrecy::SecretString;
@@ -84,7 +84,7 @@ impl<'a> PassphraseInput<'a> {
     ///
     /// Returns `None` if `pinentry` cannot be found in `PATH`.
     pub fn with_default_binary() -> Option<Self> {
-        Self::with_binary("pinentry".to_owned())
+        Self::with_binary("pinentry")
     }
 
     /// Creates a new PassphraseInput using the given path to, or name of, a `pinentry`
@@ -265,7 +265,7 @@ impl<'a> ConfirmationDialog<'a> {
     ///
     /// Returns `None` if `pinentry` cannot be found in `PATH`.
     pub fn with_default_binary() -> Option<Self> {
-        Self::with_binary("pinentry".to_owned())
+        Self::with_binary("pinentry")
     }
 
     /// Creates a new ConfirmationDialog using the given path to, or name of, a `pinentry`
@@ -390,7 +390,7 @@ impl<'a> MessageDialog<'a> {
     ///
     /// Returns `None` if `pinentry` cannot be found in `PATH`.
     pub fn with_default_binary() -> Option<Self> {
-        Self::with_binary("pinentry".to_owned())
+        Self::with_binary("pinentry")
     }
 
     /// Creates a new MessageDialog using the given path to, or name of, a `pinentry`