diff --git a/.cirrus.yml b/.cirrus.yml
index f18d58354..bcafac2f3 100644
--- a/.cirrus.yml
+++ b/.cirrus.yml
@@ -16,7 +16,7 @@ env:
 task:
   name: FreeBSD 64-bit
   setup_script:
-    - pkg install -y bash ca_root_nss
+    - pkg install -y bash
     - curl https://sh.rustup.rs -sSf --output rustup.sh
     - sh rustup.sh -y --profile minimal --default-toolchain $RUST_STABLE
     - . $HOME/.cargo/env
@@ -42,7 +42,7 @@ task:
     RUSTFLAGS: --cfg docsrs --cfg tokio_unstable
     RUSTDOCFLAGS: --cfg docsrs --cfg tokio_unstable -Dwarnings
   setup_script:
-    - pkg install -y bash ca_root_nss
+    - pkg install -y bash
     - curl https://sh.rustup.rs -sSf --output rustup.sh
     - sh rustup.sh -y --profile minimal --default-toolchain $RUST_NIGHTLY
     - . $HOME/.cargo/env
@@ -58,7 +58,7 @@ task:
 task:
   name: FreeBSD 32-bit
   setup_script:
-    - pkg install -y bash ca_root_nss
+    - pkg install -y bash
     - curl https://sh.rustup.rs -sSf --output rustup.sh
     - sh rustup.sh -y --profile minimal --default-toolchain $RUST_STABLE
     - . $HOME/.cargo/env
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 52c7fd1b5..c64225733 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -1060,8 +1060,6 @@ jobs:
         target:
           - wasm32-wasip1
           - wasm32-wasip1-threads
-    env:
-      rust_stable: '1.93.1'
     steps:
       - uses: actions/checkout@v4
       - name: Install Rust ${{ env.rust_stable }}
diff --git a/tokio/src/fs/open_options.rs b/tokio/src/fs/open_options.rs
index ee88c380a..27e98b5b2 100644
--- a/tokio/src/fs/open_options.rs
+++ b/tokio/src/fs/open_options.rs
@@ -16,9 +16,9 @@ use mock_open_options::MockOpenOptions as StdOpenOptions;
 #[cfg(not(test))]
 use std::fs::OpenOptions as StdOpenOptions;
 
-#[cfg(all(unix, not(test)))]
+#[cfg(unix)]
 use std::os::unix::fs::OpenOptionsExt;
-#[cfg(all(windows, not(test)))]
+#[cfg(windows)]
 use std::os::windows::fs::OpenOptionsExt;
 
 /// Options and flags which can be used to configure how a file is opened.
diff --git a/tokio/src/fs/open_options/mock_open_options.rs b/tokio/src/fs/open_options/mock_open_options.rs
index 0ff4c8bc9..2fbdd282a 100644
--- a/tokio/src/fs/open_options/mock_open_options.rs
+++ b/tokio/src/fs/open_options/mock_open_options.rs
@@ -3,6 +3,10 @@
 use mockall::mock;
 
 use crate::fs::mocks::MockFile;
+#[cfg(unix)]
+use std::os::unix::fs::OpenOptionsExt;
+#[cfg(windows)]
+use std::os::windows::fs::OpenOptionsExt;
 use std::{io, path::Path};
 
 mock! {
@@ -15,25 +19,21 @@ mock! {
         pub fn read(&mut self, read: bool) -> &mut Self;
         pub fn truncate(&mut self, truncate: bool) -> &mut Self;
         pub fn write(&mut self, write: bool) -> &mut Self;
-
-        // Not mocking OpenOptionsExt trait due to:
-        // https://github.com/rust-lang/rust/issues/153486
-        #[cfg(unix)]
-        pub fn custom_flags(&mut self, flags: i32) -> &mut Self;
-        #[cfg(unix)]
-        pub fn mode(&mut self, mode: u32) -> &mut Self;
-        #[cfg(windows)]
-        pub fn access_mode(&mut self, access: u32) -> &mut Self;
-        #[cfg(windows)]
-        pub fn share_mode(&mut self, val: u32) -> &mut Self;
-        #[cfg(windows)]
-        pub fn custom_flags(&mut self, flags: u32) -> &mut Self;
-        #[cfg(windows)]
-        pub fn attributes(&mut self, val: u32) -> &mut Self;
-        #[cfg(windows)]
-        pub fn security_qos_flags(&mut self, flags: u32) -> &mut Self;
     }
     impl Clone for OpenOptions {
         fn clone(&self) -> Self;
     }
+    #[cfg(unix)]
+    impl OpenOptionsExt for OpenOptions {
+        fn custom_flags(&mut self, flags: i32) -> &mut Self;
+        fn mode(&mut self, mode: u32) -> &mut Self;
+    }
+    #[cfg(windows)]
+    impl OpenOptionsExt for OpenOptions {
+        fn access_mode(&mut self, access: u32) -> &mut Self;
+        fn share_mode(&mut self, val: u32) -> &mut Self;
+        fn custom_flags(&mut self, flags: u32) -> &mut Self;
+        fn attributes(&mut self, val: u32) -> &mut Self;
+        fn security_qos_flags(&mut self, flags: u32) -> &mut Self;
+    }
 }
diff --git a/tokio/src/fs/open_options/uring_open_options.rs b/tokio/src/fs/open_options/uring_open_options.rs
index 4e7660413..48297ca3b 100644
--- a/tokio/src/fs/open_options/uring_open_options.rs
+++ b/tokio/src/fs/open_options/uring_open_options.rs
@@ -1,7 +1,4 @@
-use std::io;
-
-#[cfg(not(test))]
-use std::os::unix::fs::OpenOptionsExt;
+use std::{io, os::unix::fs::OpenOptionsExt};
 
 #[cfg(test)]
 use super::mock_open_options::MockOpenOptions as StdOpenOptions;