ci: workaround more aggressive nightly rust lints

.github/workflows/build.yml

@@ -25,7 +25,7 @@ on:
 
 jobs:
   build:
-    continue-on-error: ${{ endsWith(inputs.python-version, '-dev') || contains(fromJSON('["3.7", "pypy3.7"]'), inputs.python-version) }}
+    continue-on-error: ${{ endsWith(inputs.python-version, '-dev') || contains(fromJSON('["3.7", "pypy3.7"]'), inputs.python-version) || inputs.rust == 'beta' || inputs.rust == 'nightly' }}
     runs-on: ${{ inputs.os }}
     steps:
       - uses: actions/checkout@v4

Cargo.toml

@@ -153,6 +153,9 @@ invalid_doc_attributes = "warn"
 rust_2018_idioms = "warn"
 rust_2021_prelude_collisions = "warn"
 unused_lifetimes = "warn"
+# rust nightly got stricter about these since PyO3 0.20 was released
+dead_code = "allow"
+unused_imports = "allow"
 
 [workspace.lints.rustdoc]
 broken_intra_doc_links = "warn"

pyo3-build-config/src/impl_.rs

@@ -8,7 +8,6 @@ mod import_lib;
 
 use std::{
     collections::{HashMap, HashSet},
-    convert::AsRef,
     env,
     ffi::{OsStr, OsString},
     fmt::Display,
@@ -1792,7 +1791,6 @@ fn unescape(escaped: &str) -> Vec<u8> {
 
 #[cfg(test)]
 mod tests {
-    use std::iter::FromIterator;
     use target_lexicon::triple;
 
     use super::*;

src/conversions/chrono.rs

@@ -51,7 +51,6 @@ use chrono::{
     DateTime, Datelike, Duration, NaiveDate, NaiveDateTime, NaiveTime, Offset, TimeZone, Timelike,
 };
 use pyo3_ffi::{PyDateTime_IMPORT, PyTimeZone_FromOffset};
-use std::convert::TryInto;
 
 impl ToPyObject for Duration {
     fn to_object(&self, py: Python<'_>) -> PyObject {

src/conversions/num_bigint.rs

@@ -47,9 +47,7 @@
 //! assert n + 1 == value
 //! ```
 
-use crate::{
-    ffi, types::*, FromPyObject, IntoPy, Py, PyAny, PyObject, PyResult, Python, ToPyObject,
-};
+use crate::{ffi, types::*, FromPyObject, IntoPy, Py, PyObject, PyResult, Python, ToPyObject};
 
 use num_bigint::{BigInt, BigUint};
 

src/conversions/std/num.rs

@@ -3,7 +3,6 @@ use crate::inspect::types::TypeInfo;
 use crate::{
     exceptions, ffi, FromPyObject, IntoPy, PyAny, PyErr, PyObject, PyResult, Python, ToPyObject,
 };
-use std::convert::TryFrom;
 use std::num::{
     NonZeroI128, NonZeroI16, NonZeroI32, NonZeroI64, NonZeroI8, NonZeroIsize, NonZeroU128,
     NonZeroU16, NonZeroU32, NonZeroU64, NonZeroU8, NonZeroUsize,

src/lib.rs

@@ -10,7 +10,13 @@
         rust_2021_prelude_collisions,
         warnings
     ),
-    allow(unused_variables, unused_assignments, unused_extern_crates)
+    allow(
+        unused_variables,
+        unused_assignments,
+        unused_extern_crates,
+        unused_imports,
+        dead_code,
+    )
 )))]
 
 //! Rust bindings to the Python interpreter.

src/pyclass/create_type_object.rs

@@ -17,7 +17,6 @@ use crate::{
 use std::{
     borrow::Cow,
     collections::HashMap,
-    convert::TryInto,
     ffi::{CStr, CString},
     os::raw::{c_char, c_int, c_ulong, c_void},
     ptr,

src/types/capsule.rs

@@ -1,6 +1,6 @@
 use crate::Python;
 use crate::{ffi, PyAny};
-use crate::{pyobject_native_type_core, PyErr, PyResult};
+use crate::{PyErr, PyResult};
 use std::ffi::{CStr, CString};
 use std::os::raw::{c_char, c_int, c_void};
 

src/types/list.rs

@@ -1,4 +1,3 @@
-use std::convert::TryInto;
 use std::iter::FusedIterator;
 
 use crate::err::{self, PyResult};

src/types/tuple.rs

@@ -1,4 +1,3 @@
-use std::convert::TryInto;
 use std::iter::FusedIterator;
 
 use crate::ffi::{self, Py_ssize_t};