clippy: fix the remaining lints on aarch64-linux and macOS

src/bun_alloc/lib.rs

@@ -1685,8 +1685,8 @@ pub unsafe fn free_sensitive_cstr(p: *const core::ffi::c_char) {
     // size-agnostic).
     unsafe {
         let len = libc::strlen(p);
-        secure_zero(p as *mut u8, len);
-        crate::default_alloc::free(p as *mut core::ffi::c_void);
+        secure_zero(p.cast::<u8>().cast_mut(), len);
+        crate::default_alloc::free(p.cast::<core::ffi::c_void>().cast_mut());
     }
 }
 

src/bun_core/util.rs

@@ -3927,7 +3927,7 @@ pub fn dupe_z(bytes: &[u8]) -> *const core::ffi::c_char {
         core::ptr::copy_nonoverlapping(bytes.as_ptr(), p, bytes.len());
         *p.add(bytes.len()) = 0;
     }
-    p as *const core::ffi::c_char
+    p.cast_const().cast::<core::ffi::c_char>()
 }
 
 /// Port of `bun.freeSensitive(bun.default_allocator, slice)` for the C-string

src/runtime/server/FileResponseStream.rs

@@ -68,6 +68,11 @@ struct Sendfile {
     has_set_on_writable: bool,
 }
 
+#[allow(
+    clippy::derivable_impls,
+    reason = "only derivable where the linux/android-gated fields are absent; `Fd` has no \
+              `Default` impl, so `#[derive(Default)]` would not compile on linux/android"
+)]
 impl Default for Sendfile {
     fn default() -> Self {
         Self {