Fix clippy warnings on Rust 1.67.0

src/auditwheel/audit.rs

@@ -107,7 +107,7 @@ fn find_incompliant_symbols(
         if sym.st_type() == STT_FUNC {
             let name = strtab.get_at(sym.st_name).unwrap_or("BAD NAME");
             for symbol_version in symbol_versions {
-                if name.ends_with(&format!("@{}", symbol_version)) {
+                if name.ends_with(&format!("@{symbol_version}")) {
                     symbols.push(name.to_string());
                 }
             }
@@ -184,7 +184,7 @@ fn policy_is_satisfied(
                     .collect();
                 let offending_symbol_versions: Vec<String> = offending_versions
                     .iter()
-                    .map(|v| format!("{}_{}", name, v))
+                    .map(|v| format!("{name}_{v}"))
                     .collect();
                 let offending_symbols = find_incompliant_symbols(elf, &offending_symbol_versions)?;
                 let offender = if offending_symbols.is_empty() {
@@ -242,8 +242,7 @@ fn get_default_platform_policies() -> Vec<Policy> {
             return MUSLLINUX_POLICIES
                 .iter()
                 .filter(|policy| {
-                    policy.name == "linux"
-                        || policy.name == format!("musllinux_{}_{}", major, minor)
+                    policy.name == "linux" || policy.name == format!("musllinux_{major}_{minor}")
                 })
                 .cloned()
                 .collect();
@@ -290,9 +289,7 @@ pub fn auditwheel_rs(
         Some(PlatformTag::Musllinux { x, y }) => MUSLLINUX_POLICIES
             .clone()
             .into_iter()
-            .filter(|policy| {
-                policy.name == "linux" || policy.name == format!("musllinux_{}_{}", x, y)
-            })
+            .filter(|policy| policy.name == "linux" || policy.name == format!("musllinux_{x}_{y}"))
             .map(|mut policy| {
                 policy.fixup_musl_libc_so_name(target.target_arch());
                 policy
@@ -349,8 +346,7 @@ pub fn auditwheel_rs(
             if policy.priority < highest_policy.priority && highest_policy.name != "manylinux_2_5" {
                 println!(
                     "📦 Wheel is eligible for a higher priority tag. \
-                    You requested {} but this wheel is eligible for {}",
-                    policy, highest_policy,
+                    You requested {policy} but this wheel is eligible for {highest_policy}",
                 );
             }
         }
@@ -410,7 +406,7 @@ pub fn get_sysroot_path(target: &Target) -> Result<PathBuf> {
             .target(target_triple);
         let compiler = build
             .try_get_compiler()
-            .with_context(|| format!("Failed to get compiler for {}", target_triple))?;
+            .with_context(|| format!("Failed to get compiler for {target_triple}"))?;
         // Only GNU like compilers support `--print-sysroot`
         if !compiler.is_like_gnu() {
             return Ok(PathBuf::from("/"));
@@ -450,7 +446,7 @@ pub fn get_policy_and_libs(
         auditwheel_rs(artifact, target, platform_tag, allow_linking_libpython).with_context(
             || {
                 if let Some(platform_tag) = platform_tag {
-                    format!("Error ensuring {} compliance", platform_tag)
+                    format!("Error ensuring {platform_tag} compliance")
                 } else {
                     "Error checking for manylinux/musllinux compliance".to_string()
                 }
@@ -462,7 +458,7 @@ pub fn get_policy_and_libs(
         let external_libs = find_external_libs(&artifact.path, &policy, sysroot, ld_paths)
             .with_context(|| {
                 if let Some(platform_tag) = platform_tag {
-                    format!("Error repairing wheel for {} compliance", platform_tag)
+                    format!("Error repairing wheel for {platform_tag} compliance")
                 } else {
                     "Error repairing wheel for manylinux/musllinux compliance".to_string()
                 }

src/auditwheel/platform_tag.rs

@@ -85,8 +85,8 @@ impl PlatformTag {
 impl fmt::Display for PlatformTag {
     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
         match *self {
-            PlatformTag::Manylinux { x, y } => write!(f, "manylinux_{}_{}", x, y),
-            PlatformTag::Musllinux { x, y } => write!(f, "musllinux_{}_{}", x, y),
+            PlatformTag::Manylinux { x, y } => write!(f, "manylinux_{x}_{y}"),
+            PlatformTag::Musllinux { x, y } => write!(f, "musllinux_{x}_{y}"),
             PlatformTag::Linux => write!(f, "linux"),
         }
     }

src/build_context.rs

@@ -73,9 +73,9 @@ impl BridgeModel {
 impl Display for BridgeModel {
     fn fmt(&self, f: &mut Formatter<'_>) -> std::fmt::Result {
         match self {
-            BridgeModel::Bin(Some((name, _))) => write!(f, "{} bin", name),
+            BridgeModel::Bin(Some((name, _))) => write!(f, "{name} bin"),
             BridgeModel::Bin(None) => write!(f, "bin"),
-            BridgeModel::Bindings(name, _) => write!(f, "{}", name),
+            BridgeModel::Bindings(name, _) => write!(f, "{name}"),
             BridgeModel::BindingsAbi3(..) => write!(f, "pyo3"),
             BridgeModel::Cffi => write!(f, "cffi"),
             BridgeModel::UniFfi => write!(f, "uniffi"),
@@ -288,8 +288,7 @@ impl BuildContext {
                 && !python_interpreter.support_portable_wheels()
             {
                 println!(
-                    "🐍 Skipping auditwheel because {} does not support manylinux/musllinux wheels",
-                    python_interpreter
+                    "🐍 Skipping auditwheel because {python_interpreter} does not support manylinux/musllinux wheels"
                 );
                 return Ok((Policy::default(), Vec::new()));
             }
@@ -390,10 +389,10 @@ impl BuildContext {
             // Generate a new soname with a short hash
             let short_hash = &hash_file(&lib_path)?[..8];
             let (file_stem, file_ext) = lib.name.split_once('.').unwrap();
-            let new_soname = if !file_stem.ends_with(&format!("-{}", short_hash)) {
-                format!("{}-{}.{}", file_stem, short_hash, file_ext)
+            let new_soname = if !file_stem.ends_with(&format!("-{short_hash}")) {
+                format!("{file_stem}-{short_hash}.{file_ext}")
             } else {
-                format!("{}.{}", file_stem, file_ext)
+                format!("{file_stem}.{file_ext}")
             };
 
             // Copy the original lib to a tmpdir and modify some of its properties
@@ -509,7 +508,7 @@ impl BuildContext {
         let platform = self
             .target
             .get_platform_tag(platform_tags, self.universal2)?;
-        let tag = format!("cp{}{}-abi3-{}", major, min_minor, platform);
+        let tag = format!("cp{major}{min_minor}-abi3-{platform}");
 
         let mut writer = WheelWriter::new(
             &tag,
@@ -535,7 +534,7 @@ impl BuildContext {
         self.add_pth(&mut writer)?;
         add_data(&mut writer, self.project_layout.data.as_deref())?;
         let wheel_path = writer.finish()?;
-        Ok((wheel_path, format!("cp{}{}", major, min_minor)))
+        Ok((wheel_path, format!("cp{major}{min_minor}")))
     }
 
     /// For abi3 we only need to build a single wheel and we don't even need a python interpreter

src/build_options.rs

@@ -239,10 +239,7 @@ impl BuildOptions {
                             min_python_minor,
                         )?;
                         let host_python = &host_interpreters[0];
-                        println!(
-                            "🐍 Using host {} for cross-compiling preparation",
-                            host_python
-                        );
+                        println!("🐍 Using host {host_python} for cross-compiling preparation");
                         // pyo3
                         env::set_var("PYO3_PYTHON", &host_python.executable);
                         // rust-cpython, and legacy pyo3 versions
@@ -322,14 +319,14 @@ impl BuildOptions {
                     .map(ToString::to_string)
                     .collect::<Vec<String>>()
                     .join(", ");
-                println!("🐍 Found {}", interpreters_str);
+                println!("🐍 Found {interpreters_str}");
 
                 Ok(interpreters)
             }
             BridgeModel::Cffi => {
                 let interpreter =
                     find_single_python_interpreter(bridge, interpreter, target, "cffi")?;
-                println!("🐍 Using {} to generate the cffi bindings", interpreter);
+                println!("🐍 Using {interpreter} to generate the cffi bindings");
                 Ok(vec![interpreter])
             }
             BridgeModel::Bin(None) | BridgeModel::UniFfi => Ok(vec![]),
@@ -366,7 +363,7 @@ impl BuildOptions {
                             soabi: None,
                         }])
                     } else if let Some(interp) = interpreters.get(0) {
-                        println!("🐍 Using {} to generate to link bindings (With abi3, an interpreter is only required on windows)", interp);
+                        println!("🐍 Using {interp} to generate to link bindings (With abi3, an interpreter is only required on windows)");
                         Ok(interpreters)
                     } else if generate_import_lib {
                         println!("🐍 Not using a specific python interpreter (Automatically generating windows import library)");
@@ -623,10 +620,7 @@ impl BuildOptions {
 
         for platform_tag in &platform_tags {
             if !platform_tag.is_supported() {
-                eprintln!(
-                    "⚠️  Warning: {} is unsupported by the Rust compiler.",
-                    platform_tag
-                );
+                eprintln!("⚠️  Warning: {platform_tag} is unsupported by the Rust compiler.");
             }
         }
 
@@ -860,7 +854,7 @@ fn has_abi3(cargo_metadata: &Metadata) -> Result<Option<(u8, u8)>> {
                         ))
                     })
                     .collect::<Result<Vec<(u8, u8)>>>()
-                    .context(format!("Bogus {} cargo features", lib))?
+                    .context(format!("Bogus {lib} cargo features"))?
                     .into_iter()
                     .min();
                 if abi3_selected && min_abi3_version.is_none() {
@@ -1009,7 +1003,7 @@ pub fn find_bridge(cargo_metadata: &Metadata, bridge: Option<&str>) -> Result<Br
     };
 
     if !(bridge.is_bindings("pyo3") || bridge.is_bindings("pyo3-ffi")) {
-        println!("🔗 Found {} bindings", bridge);
+        println!("🔗 Found {bridge} bindings");
     }
 
     for &lib in PYO3_BINDING_CRATES.iter() {
@@ -1018,21 +1012,17 @@ pub fn find_bridge(cargo_metadata: &Metadata, bridge: Option<&str>) -> Result<Br
             if !pyo3_node.features.contains(&"extension-module".to_string()) {
                 let version = cargo_metadata[&pyo3_node.id].version.to_string();
                 eprintln!(
-                    "⚠️  Warning: You're building a library without activating {}'s \
+                    "⚠️  Warning: You're building a library without activating {lib}'s \
                      `extension-module` feature. \
-                     See https://pyo3.rs/v{}/building_and_distribution.html#linking",
-                    lib, version
+                     See https://pyo3.rs/v{version}/building_and_distribution.html#linking"
                 );
             }
 
             return if let Some((major, minor)) = has_abi3(cargo_metadata)? {
-                println!(
-                    "🔗 Found {} bindings with abi3 support for Python ≥ {}.{}",
-                    lib, major, minor
-                );
+                println!("🔗 Found {lib} bindings with abi3 support for Python ≥ {major}.{minor}");
                 Ok(BridgeModel::BindingsAbi3(major, minor))
             } else {
-                println!("🔗 Found {} bindings", lib);
+                println!("🔗 Found {lib} bindings");
                 Ok(bridge)
             };
         }
@@ -1163,16 +1153,10 @@ fn find_interpreter_in_sysconfig(
             .split_once('.')
             .context("Invalid python interpreter version")?;
         let ver_major = ver_major.parse::<usize>().with_context(|| {
-            format!(
-                "Invalid python interpreter major version '{}', expect a digit",
-                ver_major
-            )
+            format!("Invalid python interpreter major version '{ver_major}', expect a digit")
         })?;
         let ver_minor = ver_minor.parse::<usize>().with_context(|| {
-            format!(
-                "Invalid python interpreter minor version '{}', expect a digit",
-                ver_minor
-            )
+            format!("Invalid python interpreter minor version '{ver_minor}', expect a digit")
         })?;
         let sysconfig = InterpreterConfig::lookup(
             target.target_os(),
@@ -1181,10 +1165,7 @@ fn find_interpreter_in_sysconfig(
             (ver_major, ver_minor),
         )
         .with_context(|| {
-            format!(
-                "Failed to find a {} {}.{} interpreter",
-                python_impl, ver_major, ver_minor
-            )
+            format!("Failed to find a {python_impl} {ver_major}.{ver_minor} interpreter")
         })?;
         debug!(
             "Found {} {}.{} in bundled sysconfig",

src/compile.rs

@@ -36,8 +36,8 @@ pub struct BuildArtifact {
 /// Builds the rust crate into a native module (i.e. an .so or .dll) for a
 /// specific python version. Returns a mapping from crate type (e.g. cdylib)
 /// to artifact location.
-pub fn compile<'a>(
-    context: &'a BuildContext,
+pub fn compile(
+    context: &BuildContext,
     python_interpreter: Option<&PythonInterpreter>,
     targets: &[CompileTarget],
 ) -> Result<Vec<HashMap<String, BuildArtifact>>> {
@@ -49,8 +49,8 @@ pub fn compile<'a>(
 }
 
 /// Build an universal2 wheel for macos which contains both an x86 and an aarch64 binary
-fn compile_universal2<'a>(
-    context: &'a BuildContext,
+fn compile_universal2(
+    context: &BuildContext,
     python_interpreter: Option<&PythonInterpreter>,
     targets: &[CompileTarget],
 ) -> Result<Vec<HashMap<String, BuildArtifact>>> {
@@ -214,13 +214,13 @@ fn compile_target(
             // See https://github.com/PyO3/setuptools-rust/issues/106 for detail
             let module_name = &context.module_name;
             let so_filename = match bridge_model {
-                BridgeModel::BindingsAbi3(..) => format!("{base}.abi3.so", base = module_name),
+                BridgeModel::BindingsAbi3(..) => format!("{module_name}.abi3.so"),
                 _ => python_interpreter
                     .expect("missing python interpreter for non-abi3 wheel build")
                     .get_library_name(module_name),
             };
             let macos_dylib_install_name =
-                format!("link-args=-Wl,-install_name,@rpath/{}", so_filename);
+                format!("link-args=-Wl,-install_name,@rpath/{so_filename}");
             let mac_args = [
                 "-C".to_string(),
                 "link-arg=-undefined".to_string(),
@@ -299,7 +299,7 @@ fn compile_target(
                 let zig_triple = if target.is_linux() && !target.is_musl_target() {
                     match context.platform_tag.iter().find(|tag| tag.is_manylinux()) {
                         Some(PlatformTag::Manylinux { x, y }) => {
-                            format!("{}.{}.{}", target_triple, x, y)
+                            format!("{target_triple}.{x}.{y}")
                         }
                         _ => target_triple.to_string(),
                     }
@@ -411,10 +411,9 @@ fn compile_target(
         use crate::target::rustc_macosx_target_version;
 
         let (major, minor) = rustc_macosx_target_version(target_triple);
-        build_command.env("MACOSX_DEPLOYMENT_TARGET", format!("{}.{}", major, minor));
+        build_command.env("MACOSX_DEPLOYMENT_TARGET", format!("{major}.{minor}"));
         eprintln!(
-            "💻 Using `MACOSX_DEPLOYMENT_TARGET={}.{}` for {} by default",
-            major, minor, target_triple
+            "💻 Using `MACOSX_DEPLOYMENT_TARGET={major}.{minor}` for {target_triple} by default"
         );
     }
 
@@ -452,8 +451,7 @@ fn compile_target(
                         if should_warn {
                             // This is a spurious error I don't really understand
                             eprintln!(
-                                "⚠️  Warning: The package {} wasn't listed in `cargo metadata`",
-                                package_id
+                                "⚠️  Warning: The package {package_id} wasn't listed in `cargo metadata`"
                             );
                         }
                         continue;
@@ -522,7 +520,7 @@ fn compile_target(
 ///
 /// Currently the check is only run on linux, macOS and Windows
 pub fn warn_missing_py_init(artifact: &Path, module_name: &str) -> Result<()> {
-    let py_init = format!("PyInit_{}", module_name);
+    let py_init = format!("PyInit_{module_name}");
     let mut fd = File::open(artifact)?;
     let mut buffer = Vec::new();
     fd.read_to_end(&mut buffer)?;
@@ -581,10 +579,9 @@ pub fn warn_missing_py_init(artifact: &Path, module_name: &str) -> Result<()> {
 
     if !found {
         eprintln!(
-            "⚠️  Warning: Couldn't find the symbol `{}` in the native library. \
+            "⚠️  Warning: Couldn't find the symbol `{py_init}` in the native library. \
              Python will fail to import this module. \
-             If you're using pyo3, check that `#[pymodule]` uses `{}` as module name",
-            py_init, module_name
+             If you're using pyo3, check that `#[pymodule]` uses `{module_name}` as module name"
         )
     }
 

src/cross_compile.rs

@@ -152,7 +152,7 @@ fn search_lib_dir(path: impl AsRef<Path>, target: &Target) -> Vec<PathBuf> {
     let (cpython_version_pat, pypy_version_pat) = if let Some(v) =
         env::var_os("PYO3_CROSS_PYTHON_VERSION").map(|s| s.into_string().unwrap())
     {
-        (format!("python{}", v), format!("pypy{}", v))
+        (format!("python{v}"), format!("pypy{v}"))
     } else {
         ("python3.".into(), "pypy3.".into())
     };

src/develop.rs

@@ -86,8 +86,8 @@ pub fn develop(
             // Remove extra marker to make it installable with pip
             for extra in &extras {
                 pkg = pkg
-                    .replace(&format!(" and extra == '{}'", extra), "")
-                    .replace(&format!("; extra == '{}'", extra), "");
+                    .replace(&format!(" and extra == '{extra}'"), "")
+                    .replace(&format!("; extra == '{extra}'"), "");
             }
             pkg
         }));
@@ -114,7 +114,7 @@ pub fn develop(
             .args(command)
             .arg(dunce::simplified(filename))
             .output()
-            .context(format!("pip install failed with {:?}", python))?;
+            .context(format!("pip install failed with {python:?}"))?;
         if !output.status.success() {
             bail!(
                 "pip install in {} failed running {:?}: {}\n--- Stdout:\n{}\n--- Stderr:\n{}\n---\n",