chore: bump nightly to nightly-2021-04-25 (#3754)

.github/workflows/ci.yml

@@ -9,7 +9,7 @@ name: CI
 env:
   RUSTFLAGS: -Dwarnings
   RUST_BACKTRACE: 1
-  nightly: nightly-2020-09-21
+  nightly: nightly-2021-04-25
   minrust: 1.45.2
 
 jobs:
@@ -279,7 +279,7 @@ jobs:
       - name: "doc --lib --all-features"
         run: cargo doc --lib --no-deps --all-features --document-private-items
         env:
-          RUSTDOCFLAGS: --cfg docsrs
+          RUSTDOCFLAGS: --cfg docsrs -Dwarnings
 
   loom:
     name: loom

tokio-stream/src/stream_map.rs

@@ -606,9 +606,9 @@ mod rand {
     ///
     /// Implement xorshift64+: 2 32-bit xorshift sequences added together.
     /// Shift triplet `[17,7,16]` was calculated as indicated in Marsaglia's
-    /// Xorshift paper: https://www.jstatsoft.org/article/view/v008i14/xorshift.pdf
+    /// Xorshift paper: <https://www.jstatsoft.org/article/view/v008i14/xorshift.pdf>
     /// This generator passes the SmallCrush suite, part of TestU01 framework:
-    /// http://simul.iro.umontreal.ca/testu01/tu01.html
+    /// <http://simul.iro.umontreal.ca/testu01/tu01.html>
     #[derive(Debug)]
     pub(crate) struct FastRand {
         one: Cell<u32>,

tokio-util/src/udp/frame.rs

@@ -35,7 +35,7 @@ use std::{io, mem::MaybeUninit};
 /// [`Sink`]: futures_sink::Sink
 /// [`split`]: https://docs.rs/futures/0.3/futures/stream/trait.StreamExt.html#method.split
 #[must_use = "sinks do nothing unless polled"]
-#[cfg_attr(docsrs, doc(all(feature = "codec", feature = "udp")))]
+#[cfg_attr(docsrs, doc(cfg(all(feature = "codec", feature = "udp"))))]
 #[derive(Debug)]
 pub struct UdpFramed<C, T = UdpSocket> {
     socket: T,

tokio/src/io/driver/mod.rs

@@ -273,7 +273,7 @@ cfg_not_rt! {
         /// This function panics if there is no current reactor set, or if the `rt`
         /// feature flag is not enabled.
         pub(super) fn current() -> Self {
-            panic!(crate::util::error::CONTEXT_MISSING_ERROR)
+            panic!("{}", crate::util::error::CONTEXT_MISSING_ERROR)
         }
     }
 }

tokio/src/runtime/blocking/pool.rs

@@ -61,7 +61,7 @@ struct Shared {
     /// Prior to shutdown, we clean up JoinHandles by having each timed-out
     /// thread join on the previous timed-out thread. This is not strictly
     /// necessary but helps avoid Valgrind false positives, see
-    /// https://github.com/tokio-rs/tokio/commit/646fbae76535e397ef79dbcaacb945d4c829f666
+    /// <https://github.com/tokio-rs/tokio/commit/646fbae76535e397ef79dbcaacb945d4c829f666>
     /// for more information.
     last_exiting_thread: Option<thread::JoinHandle<()>>,
     /// This holds the JoinHandles for all running threads; on shutdown, the thread

tokio/src/time/driver/handle.rs

@@ -76,7 +76,7 @@ cfg_not_rt! {
         /// lazy, and so outside executed inside the runtime successfully without
         /// panicking.
         pub(crate) fn current() -> Self {
-            panic!(crate::util::error::CONTEXT_MISSING_ERROR)
+            panic!("{}", crate::util::error::CONTEXT_MISSING_ERROR)
         }
     }
 }

tokio/src/util/linked_list.rs

@@ -77,7 +77,7 @@ pub(crate) struct Pointers<T> {
 /// #[repr(C)].
 ///
 /// See this link for more information:
-/// https://github.com/rust-lang/rust/pull/82834
+/// <https://github.com/rust-lang/rust/pull/82834>
 #[repr(C)]
 struct PointersInner<T> {
     /// The previous node in the list. null if there is no previous node.
@@ -93,7 +93,7 @@ struct PointersInner<T> {
     next: Option<NonNull<T>>,
 
     /// This type is !Unpin due to the heuristic from:
-    /// https://github.com/rust-lang/rust/pull/82834
+    /// <https://github.com/rust-lang/rust/pull/82834>
     _pin: PhantomPinned,
 }
 

tokio/src/util/rand.rs

@@ -4,9 +4,9 @@ use std::cell::Cell;
 ///
 /// Implement xorshift64+: 2 32-bit xorshift sequences added together.
 /// Shift triplet `[17,7,16]` was calculated as indicated in Marsaglia's
-/// Xorshift paper: https://www.jstatsoft.org/article/view/v008i14/xorshift.pdf
+/// Xorshift paper: <https://www.jstatsoft.org/article/view/v008i14/xorshift.pdf>
 /// This generator passes the SmallCrush suite, part of TestU01 framework:
-/// http://simul.iro.umontreal.ca/testu01/tu01.html
+/// <http://simul.iro.umontreal.ca/testu01/tu01.html>
 #[derive(Debug)]
 pub(crate) struct FastRand {
     one: Cell<u32>,