Auto merge of #47622 - GuillaumeGomez:rollup, r=GuillaumeGomez

Rollup of 10 pull requests

- Successful merges: #46938, #47193, #47508, #47510, #47532, #47535, #47559, #47568, #47573, #47578
- Failed merges:

4 files changed, 20 insertions, 3 deletions

diff --git a/src/libstd/collections/mod.rs b/src/libstd/collections/mod.rs
index b8a6a66eaa6..e9a150f34a5 100644
--- a/src/libstd/collections/mod.rs
+++ b/src/libstd/collections/mod.rs
@@ -64,11 +64,11 @@
 //! * You want a map, with no extra functionality.
 //!
 //! ### Use a `BTreeMap` when:
+//! * You want a map sorted by its keys.
+//! * You want to be able to get a range of entries on-demand.
 //! * You're interested in what the smallest or largest key-value pair is.
 //! * You want to find the largest or smallest key that is smaller or larger
 //!   than something.
-//! * You want to be able to get all of the entries in order on-demand.
-//! * You want a map sorted by its keys.
 //!
 //! ### Use the `Set` variant of any of these `Map`s when:
 //! * You just want to remember which keys you've seen.
diff --git a/src/libstd/net/addr.rs b/src/libstd/net/addr.rs
index 1ca7e66ed9c..fa430939f05 100644
--- a/src/libstd/net/addr.rs
+++ b/src/libstd/net/addr.rs
@@ -12,7 +12,9 @@ use fmt;
 use hash;
 use io;
 use mem;
-use net::{lookup_host, ntoh, hton, IpAddr, Ipv4Addr, Ipv6Addr};
+use net::{ntoh, hton, IpAddr, Ipv4Addr, Ipv6Addr};
+#[allow(deprecated)]
+use net::lookup_host;
 use option;
 use sys::net::netc as c;
 use sys_common::{FromInner, AsInner, IntoInner};
@@ -845,6 +847,7 @@ impl ToSocketAddrs for (Ipv6Addr, u16) {
     }
 }
 
+#[allow(deprecated)]
 fn resolve_socket_addr(s: &str, p: u16) -> io::Result<vec::IntoIter<SocketAddr>> {
     let ips = lookup_host(s)?;
     let v: Vec<_> = ips.map(|mut a| { a.set_port(p); a }).collect();
diff --git a/src/libstd/net/mod.rs b/src/libstd/net/mod.rs
index 9fcb93e2032..eb0e2e13b4c 100644
--- a/src/libstd/net/mod.rs
+++ b/src/libstd/net/mod.rs
@@ -134,12 +134,15 @@ fn each_addr<A: ToSocketAddrs, F, T>(addr: A, mut f: F) -> io::Result<T>
                                               iterator and returning socket \
                                               addresses",
            issue = "27705")]
+#[rustc_deprecated(since = "1.25", reason = "Use the ToSocketAddrs trait instead")]
 pub struct LookupHost(net_imp::LookupHost);
 
 #[unstable(feature = "lookup_host", reason = "unsure about the returned \
                                               iterator and returning socket \
                                               addresses",
            issue = "27705")]
+#[rustc_deprecated(since = "1.25", reason = "Use the ToSocketAddrs trait instead")]
+#[allow(deprecated)]
 impl Iterator for LookupHost {
     type Item = SocketAddr;
     fn next(&mut self) -> Option<SocketAddr> { self.0.next() }
@@ -149,6 +152,8 @@ impl Iterator for LookupHost {
                                               iterator and returning socket \
                                               addresses",
            issue = "27705")]
+#[rustc_deprecated(since = "1.25", reason = "Use the ToSocketAddrs trait instead")]
+#[allow(deprecated)]
 impl fmt::Debug for LookupHost {
     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
         f.pad("LookupHost { .. }")
@@ -181,6 +186,8 @@ impl fmt::Debug for LookupHost {
                                               iterator and returning socket \
                                               addresses",
            issue = "27705")]
+#[rustc_deprecated(since = "1.25", reason = "Use the ToSocketAddrs trait instead")]
+#[allow(deprecated)]
 pub fn lookup_host(host: &str) -> io::Result<LookupHost> {
     net_imp::lookup_host(host).map(LookupHost)
 }
diff --git a/src/libstd/path.rs b/src/libstd/path.rs
index 7631a9a44bb..ed102c2949e 100644
--- a/src/libstd/path.rs
+++ b/src/libstd/path.rs
@@ -1869,7 +1869,11 @@ impl Path {
     ///
     /// let path = Path::new("/test/haha/foo.txt");
     ///
+    /// assert_eq!(path.strip_prefix("/"), Ok(Path::new("test/haha/foo.txt")));
     /// assert_eq!(path.strip_prefix("/test"), Ok(Path::new("haha/foo.txt")));
+    /// assert_eq!(path.strip_prefix("/test/"), Ok(Path::new("haha/foo.txt")));
+    /// assert_eq!(path.strip_prefix("/test/haha/foo.txt"), Ok(Path::new("")));
+    /// assert_eq!(path.strip_prefix("/test/haha/foo.txt/"), Ok(Path::new("")));
     /// assert_eq!(path.strip_prefix("test").is_ok(), false);
     /// assert_eq!(path.strip_prefix("/haha").is_ok(), false);
     /// ```
@@ -1900,6 +1904,9 @@ impl Path {
     /// let path = Path::new("/etc/passwd");
     ///
     /// assert!(path.starts_with("/etc"));
+    /// assert!(path.starts_with("/etc/"));
+    /// assert!(path.starts_with("/etc/passwd"));
+    /// assert!(path.starts_with("/etc/passwd/"));
     ///
     /// assert!(!path.starts_with("/e"));
     /// ```