diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index f77c5f10eed..d28e7ddf84a 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -85,9 +85,9 @@ jobs:
     - name: Install nightly Rust
       # TODO: intra-doc links are available on nightly only
       # see https://doc.rust-lang.org/nightly/rustdoc/lints.html#intra_doc_link_resolution_failure
-      run: rustup default nightly-2020-05-20
+      run: rustup default nightly-2020-09-17
     - name: Check rustdoc links
-      run: RUSTDOCFLAGS="--deny intra_doc_link_resolution_failure" cargo doc --verbose --workspace --no-deps --document-private-items
+      run: RUSTDOCFLAGS="--deny broken_intra_doc_links" cargo doc --verbose --workspace --no-deps --document-private-items
 
   integration-test:
     name: Integration tests
diff --git a/Cargo.toml b/Cargo.toml
index 534047df739..7e73d44ab39 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -58,7 +58,7 @@ secp256k1 = ["libp2p-core/secp256k1"]
 all-features = true
 
 [dependencies]
-atomic = "0.4.6"
+atomic = "0.5.0"
 bytes = "0.5"
 futures = "0.3.1"
 lazy_static = "1.2"
diff --git a/core/src/connection/pool.rs b/core/src/connection/pool.rs
index e27fde27ec6..379a75be010 100644
--- a/core/src/connection/pool.rs
+++ b/core/src/connection/pool.rs
@@ -750,7 +750,7 @@ pub enum PoolConnection<'a, TInEvent, TConnInfo, TPeerId> {
     Established(EstablishedConnection<'a, TInEvent, TConnInfo>),
 }
 
-/// A pending connection in a [`Pool`].
+/// A pending connection in a pool.
 pub struct PendingConnection<'a, TInEvent, TConnInfo, TPeerId> {
     entry: manager::PendingEntry<'a, TInEvent, TConnInfo>,
     pending: &'a mut FnvHashMap<ConnectionId, (ConnectedPoint, Option<TPeerId>)>,
@@ -781,7 +781,7 @@ impl<TInEvent, TConnInfo, TPeerId>
     }
 }
 
-/// An established connection in a [`Pool`].
+/// An established connection in a pool.
 pub struct EstablishedConnection<'a, TInEvent, TConnInfo> {
     entry: manager::EstablishedEntry<'a, TInEvent, TConnInfo>,
 }
@@ -861,7 +861,7 @@ where
     }
 }
 
-/// An iterator over established connections in a [`Pool`].
+/// An iterator over established connections in a pool.
 pub struct EstablishedConnectionIter<'a, I, TInEvent, TOutEvent, THandler, TTransErr, THandlerErr, TConnInfo, TPeerId> {
     pool: &'a mut Pool<TInEvent, TOutEvent, THandler, TTransErr, THandlerErr, TConnInfo, TPeerId>,
     ids: I
diff --git a/misc/multistream-select/src/dialer_select.rs b/misc/multistream-select/src/dialer_select.rs
index e0c03c73a12..87149a6aa9c 100644
--- a/misc/multistream-select/src/dialer_select.rs
+++ b/misc/multistream-select/src/dialer_select.rs
@@ -34,12 +34,11 @@ use std::{convert::TryFrom as _, io, iter, mem, pin::Pin, task::{Context, Poll}}
 /// returned `Future` resolves with the name of the negotiated protocol and
 /// a [`Negotiated`] I/O stream.
 ///
-/// The chosen message flow for protocol negotiation depends on the numbers
-/// of supported protocols given. That is, this function delegates to
-/// [`dialer_select_proto_serial`] or [`dialer_select_proto_parallel`]
-/// based on the number of protocols given. The number of protocols is
-/// determined through the `size_hint` of the given iterator and thus
-/// an inaccurate size estimate may result in a suboptimal choice.
+/// The chosen message flow for protocol negotiation depends on the numbers of
+/// supported protocols given. That is, this function delegates to serial or
+/// parallel variant based on the number of protocols given. The number of
+/// protocols is determined through the `size_hint` of the given iterator and
+/// thus an inaccurate size estimate may result in a suboptimal choice.
 ///
 /// Within the scope of this library, a dialer always commits to a specific
 /// multistream-select protocol [`Version`], whereas a listener always supports
@@ -401,4 +400,3 @@ where
         }
     }
 }
-