fix lint errors (#623)

* Update dependencies to pull in latest remoteprocess etc

* fix clippy/cargo-check warnings

The pre-commit was failing with the latest version of rust. Fix the errors
shown by newer clippy/cargo-check

src/python_bindings/v3_7_0.rs

@@ -123,7 +123,7 @@ impl<T> ::std::fmt::Debug for __IncompleteArrayField<T> {
 impl<T> ::std::clone::Clone for __IncompleteArrayField<T> {
     #[inline]
     fn clone(&self) -> Self {
-        Self::new()
+        *self
     }
 }
 impl<T> ::std::marker::Copy for __IncompleteArrayField<T> {}

src/python_bindings/v3_8_0.rs

@@ -123,7 +123,7 @@ impl<T> ::std::fmt::Debug for __IncompleteArrayField<T> {
 impl<T> ::std::clone::Clone for __IncompleteArrayField<T> {
     #[inline]
     fn clone(&self) -> Self {
-        Self::new()
+        *self
     }
 }
 impl<T> ::std::marker::Copy for __IncompleteArrayField<T> {}

src/sampler.rs

@@ -56,7 +56,7 @@ impl Sampler {
                     spy
                 }
                 Err(e) => {
-                    if initialized_tx.send(Err(e)).is_err() {}
+                    initialized_tx.send(Err(e)).unwrap_err();
                     return;
                 }
             };
@@ -308,7 +308,7 @@ impl PythonSpyThread {
                 }
                 Err(e) => {
                     warn!("Failed to profile python from process {}: {}", pid, e);
-                    if initialized_tx.send(Err(e)).is_err() {}
+                    initialized_tx.send(Err(e)).unwrap_err();
                     return;
                 }
             };

src/speedscope.rs

@@ -231,10 +231,7 @@ impl Stats {
 
         let key = (stack.pid as Pid, stack.thread_id as Tid);
 
-        self.samples
-            .entry(key)
-            .or_insert_with(std::vec::Vec::new)
-            .push(frame_indices);
+        self.samples.entry(key).or_default().push(frame_indices);
         let subprocesses = self.config.subprocesses;
         self.thread_name_map.entry(key).or_insert_with(|| {
             let thread_name = stack