diff --git a/library/std/src/sys/pal/osstd/fs.rs b/library/std/src/sys/pal/osstd/fs.rs
index 474c9fe97d1..9585ec24f68 100644
--- a/library/std/src/sys/pal/osstd/fs.rs
+++ b/library/std/src/sys/pal/osstd/fs.rs
@@ -198,6 +198,26 @@ impl File {
         self.0
     }
 
+    pub fn lock(&self) -> io::Result<()> {
+        self.0
+    }
+
+    pub fn lock_shared(&self) -> io::Result<()> {
+        self.0
+    }
+
+    pub fn try_lock(&self) -> io::Result<bool> {
+        self.0
+    }
+
+    pub fn try_lock_shared(&self) -> io::Result<bool> {
+        self.0
+    }
+
+    pub fn unlock(&self) -> io::Result<()> {
+        self.0
+    }
+
     pub fn truncate(&self, _size: u64) -> io::Result<()> {
         self.0
     }
diff --git a/library/std/src/sys/pal/osstd/io.rs b/library/std/src/sys/pal/osstd/io.rs
index 6372fca74e0..604735d32d5 100644
--- a/library/std/src/sys/pal/osstd/io.rs
+++ b/library/std/src/sys/pal/osstd/io.rs
@@ -15,7 +15,7 @@ impl<'a> IoSlice<'a> {
     }
 
     #[inline]
-    pub fn as_slice(&self) -> &[u8] {
+    pub const fn as_slice(&self) -> &'a [u8] {
         self.0
     }
 }
@@ -40,6 +40,11 @@ impl<'a> IoSliceMut<'a> {
         self.0
     }
 
+    #[inline]
+    pub const fn into_slice(self) -> &'a mut [u8] {
+        self.0
+    }
+
     #[inline]
     pub fn as_mut_slice(&mut self) -> &mut [u8] {
         self.0