std: Deprecate a number of unstable features

Many of these have long since reached their stage of being obsolete, so this
commit starts the removal process for all of them. The unstable features that
were deprecated are:

* cmp_partial
* fs_time
* hash_default
* int_slice
* iter_min_max
* iter_reset_fuse
* iter_to_vec
* map_in_place
* move_from
* owned_ascii_ext
* page_size
* read_and_zero
* scan_state
* slice_chars
* slice_position_elem
* subslice_offset

2 files changed, 2 insertions, 2 deletions

diff --git a/src/libstd/io/buffered.rs b/src/libstd/io/buffered.rs
index c25aa35ffbe..29d1fe19adf 100644
--- a/src/libstd/io/buffered.rs
+++ b/src/libstd/io/buffered.rs
@@ -747,7 +747,7 @@ impl<W: Write> LineWriter<W> {
 #[stable(feature = "rust1", since = "1.0.0")]
 impl<W: Write> Write for LineWriter<W> {
     fn write(&mut self, buf: &[u8]) -> io::Result<usize> {
-        match buf.rposition_elem(&b'\n') {
+        match buf.iter().rposition(|b| *b == b'\n') {
             Some(i) => {
                 let n = try!(self.inner.write(&buf[..i + 1]));
                 if n != i + 1 { return Ok(n) }
diff --git a/src/libstd/io/mod.rs b/src/libstd/io/mod.rs
index fbdfdeaaef4..ffdd75b0e6e 100644
--- a/src/libstd/io/mod.rs
+++ b/src/libstd/io/mod.rs
@@ -1105,7 +1105,7 @@ fn read_until<R: BufRead + ?Sized>(r: &mut R, delim: u8, buf: &mut Vec<u8>)
                 Err(ref e) if e.kind() == ErrorKind::Interrupted => continue,
                 Err(e) => return Err(e)
             };
-            match available.position_elem(&delim) {
+            match available.iter().position(|x| *x == delim) {
                 Some(i) => {
                     buf.push_all(&available[..i + 1]);
                     (true, i + 1)