diff --git a/bitcoin/src/address/mod.rs b/bitcoin/src/address/mod.rs
index c944c6252..38c171b37 100644
--- a/bitcoin/src/address/mod.rs
+++ b/bitcoin/src/address/mod.rs
@@ -307,7 +307,6 @@ pub enum AddressData {
 /// 1. `Display` is implemented only for `Address<NetworkChecked>`:
 ///
 /// ```
-/// # use std::str::FromStr;
 /// # use bitcoin::address::{Address, NetworkChecked};
 /// let address: Address<NetworkChecked> = "132F25rTsvBdp9JzLLBHP5mvGY66i1xdiM".parse::<Address<_>>()
 ///                .unwrap().assume_checked();
@@ -315,7 +314,6 @@ pub enum AddressData {
 /// ```
 ///
 /// ```ignore
-/// # use std::str::FromStr;
 /// # use bitcoin::address::{Address, NetworkChecked};
 /// let address: Address<NetworkUnchecked> = "132F25rTsvBdp9JzLLBHP5mvGY66i1xdiM".parse::<Address<_>>()
 ///                .unwrap();
@@ -327,7 +325,6 @@ pub enum AddressData {
 ///    check the network and use `Display` in user-facing context.
 ///
 /// ```
-/// # use std::str::FromStr;
 /// # use bitcoin::address::{Address, NetworkUnchecked};
 /// let address: Address<NetworkUnchecked> = "132F25rTsvBdp9JzLLBHP5mvGY66i1xdiM".parse::<Address<_>>()
 ///                .unwrap();
@@ -335,7 +332,6 @@ pub enum AddressData {
 /// ```
 ///
 /// ```
-/// # use std::str::FromStr;
 /// # use bitcoin::address::{Address, NetworkChecked};
 /// let address: Address<NetworkChecked> = "132F25rTsvBdp9JzLLBHP5mvGY66i1xdiM".parse::<Address<_>>()
 ///                .unwrap().assume_checked();
diff --git a/bitcoin/src/bip32.rs b/bitcoin/src/bip32.rs
index cf7dc4520..55ad3ae80 100644
--- a/bitcoin/src/bip32.rs
+++ b/bitcoin/src/bip32.rs
@@ -444,7 +444,6 @@ impl DerivationPath {
     ///
     /// ```
     /// use bitcoin::bip32::DerivationPath;
-    /// use std::str::FromStr;
     ///
     /// let path = "m/84'/0'/0'/0/1".parse::<DerivationPath>().unwrap();
     /// const HARDENED: u32 = 0x80000000;
diff --git a/bitcoin/src/blockdata/transaction.rs b/bitcoin/src/blockdata/transaction.rs
index 174afff09..cfdf0a5d2 100644
--- a/bitcoin/src/blockdata/transaction.rs
+++ b/bitcoin/src/blockdata/transaction.rs
@@ -114,7 +114,7 @@ impl OutPoint {
     ///
     /// ```rust
     /// use bitcoin::constants::genesis_block;
-    /// use bitcoin::{params, Network};
+    /// use bitcoin::params;
     ///
     /// let block = genesis_block(&params::MAINNET);
     /// let tx = &block.txdata[0];
diff --git a/bitcoin/src/crypto/sighash.rs b/bitcoin/src/crypto/sighash.rs
index 0e17f7b32..77ed7aa6f 100644
--- a/bitcoin/src/crypto/sighash.rs
+++ b/bitcoin/src/crypto/sighash.rs
@@ -1370,8 +1370,8 @@ impl<E> EncodeSigningDataResult<E> {
     ///
     /// ```rust
     /// # use bitcoin::consensus::deserialize;
-    /// # use bitcoin::hashes::{sha256d, Hash, hex::FromHex};
-    /// # use bitcoin::sighash::{LegacySighash, SighashCache};
+    /// # use bitcoin::hashes::{sha256d, hex::FromHex};
+    /// # use bitcoin::sighash::SighashCache;
     /// # use bitcoin::Transaction;
     /// # let mut writer = sha256d::Hash::engine();
     /// # let input_index = 0;
diff --git a/bitcoin/src/lib.rs b/bitcoin/src/lib.rs
index 8ebd84bce..546c97e95 100644
--- a/bitcoin/src/lib.rs
+++ b/bitcoin/src/lib.rs
@@ -30,6 +30,7 @@
 #![cfg_attr(bench, feature(test))]
 // Coding conventions.
 #![warn(missing_docs)]
+#![doc(test(attr(warn(unused))))]
 // Instead of littering the codebase for non-fuzzing and bench code just globally allow.
 #![cfg_attr(fuzzing, allow(dead_code, unused_imports))]
 #![cfg_attr(bench, allow(dead_code, unused_imports))]
diff --git a/bitcoin/src/merkle_tree/block.rs b/bitcoin/src/merkle_tree/block.rs
index a29020475..6034dc29c 100644
--- a/bitcoin/src/merkle_tree/block.rs
+++ b/bitcoin/src/merkle_tree/block.rs
@@ -197,8 +197,7 @@ impl PartialMerkleTree {
     ///
     /// ```rust
     /// use bitcoin::hash_types::Txid;
-    /// use bitcoin::hex::FromHex;
-    /// use bitcoin::merkle_tree::{MerkleBlock, PartialMerkleTree};
+    /// use bitcoin::merkle_tree::PartialMerkleTree;
     ///
     /// // Block 80000
     /// let txids: Vec<Txid> = [