diff --git a/hashes/src/hash160/mod.rs b/hashes/src/hash160/mod.rs
index 406bdc5ab..fbb11e1d0 100644
--- a/hashes/src/hash160/mod.rs
+++ b/hashes/src/hash160/mod.rs
@@ -15,17 +15,16 @@ crate::internal_macros::general_hash_type! {
     "Output of the Bitcoin HASH160 hash function. (RIPEMD160(SHA256))"
 }
 
-
 impl Hash {
-/// Finalize a hash engine to produce a hash.
-pub fn from_engine(e: HashEngine) -> Self {
-    let sha2 = sha256::Hash::from_engine(e.0);
-    let rmd = ripemd160::Hash::hash(sha2.as_byte_array());
+    /// Finalize a hash engine to produce a hash.
+    pub fn from_engine(e: HashEngine) -> Self {
+        let sha2 = sha256::Hash::from_engine(e.0);
+        let rmd = ripemd160::Hash::hash(sha2.as_byte_array());
 
-    let mut ret = [0; 20];
-    ret.copy_from_slice(rmd.as_byte_array());
-    Hash(ret)
-}
+        let mut ret = [0; 20];
+        ret.copy_from_slice(rmd.as_byte_array());
+        Hash(ret)
+    }
 }
 
 /// Engine to compute HASH160 hash function.
diff --git a/hashes/src/ripemd160/mod.rs b/hashes/src/ripemd160/mod.rs
index 7b0e5377f..36f2b2416 100644
--- a/hashes/src/ripemd160/mod.rs
+++ b/hashes/src/ripemd160/mod.rs
@@ -20,36 +20,35 @@ crate::internal_macros::general_hash_type! {
     "Output of the RIPEMD160 hash function."
 }
 
-
 impl Hash {
-/// Finalize a hash engine to produce a hash.
-#[cfg(not(hashes_fuzz))]
-pub fn from_engine(mut e: HashEngine) -> Self {
-    // pad buffer with a single 1-bit then all 0s, until there are exactly 8 bytes remaining
-    let n_bytes_hashed = e.bytes_hashed;
+    /// Finalize a hash engine to produce a hash.
+    #[cfg(not(hashes_fuzz))]
+    pub fn from_engine(mut e: HashEngine) -> Self {
+        // pad buffer with a single 1-bit then all 0s, until there are exactly 8 bytes remaining
+        let n_bytes_hashed = e.bytes_hashed;
 
-    let zeroes = [0; BLOCK_SIZE - 8];
-    e.input(&[0x80]);
-    if crate::incomplete_block_len(&e) > zeroes.len() {
-        e.input(&zeroes);
+        let zeroes = [0; BLOCK_SIZE - 8];
+        e.input(&[0x80]);
+        if crate::incomplete_block_len(&e) > zeroes.len() {
+            e.input(&zeroes);
+        }
+        let pad_length = zeroes.len() - incomplete_block_len(&e);
+        e.input(&zeroes[..pad_length]);
+        debug_assert_eq!(incomplete_block_len(&e), zeroes.len());
+
+        e.input(&(8 * n_bytes_hashed).to_le_bytes());
+        debug_assert_eq!(incomplete_block_len(&e), 0);
+
+        Hash(e.midstate())
     }
-    let pad_length = zeroes.len() - incomplete_block_len(&e);
-    e.input(&zeroes[..pad_length]);
-    debug_assert_eq!(incomplete_block_len(&e), zeroes.len());
 
-    e.input(&(8 * n_bytes_hashed).to_le_bytes());
-    debug_assert_eq!(incomplete_block_len(&e), 0);
-
-    Hash(e.midstate())
-}
-
-/// Finalize a hash engine to produce a hash.
-#[cfg(hashes_fuzz)]
-pub fn from_engine(e: HashEngine) -> Self {
-    let mut res = e.midstate();
-    res[0] ^= (e.bytes_hashed & 0xff) as u8;
-    Hash(res)
-}
+    /// Finalize a hash engine to produce a hash.
+    #[cfg(hashes_fuzz)]
+    pub fn from_engine(e: HashEngine) -> Self {
+        let mut res = e.midstate();
+        res[0] ^= (e.bytes_hashed & 0xff) as u8;
+        Hash(res)
+    }
 }
 
 const BLOCK_SIZE: usize = 64;
diff --git a/hashes/src/sha1/mod.rs b/hashes/src/sha1/mod.rs
index ae49c364f..ca5e92acb 100644
--- a/hashes/src/sha1/mod.rs
+++ b/hashes/src/sha1/mod.rs
@@ -21,25 +21,25 @@ crate::internal_macros::general_hash_type! {
 }
 
 impl Hash {
-/// Finalize a hash engine to produce a hash.
-pub fn from_engine(mut e: HashEngine) -> Self {
-    // pad buffer with a single 1-bit then all 0s, until there are exactly 8 bytes remaining
-    let n_bytes_hashed = e.bytes_hashed;
+    /// Finalize a hash engine to produce a hash.
+    pub fn from_engine(mut e: HashEngine) -> Self {
+        // pad buffer with a single 1-bit then all 0s, until there are exactly 8 bytes remaining
+        let n_bytes_hashed = e.bytes_hashed;
 
-    let zeroes = [0; BLOCK_SIZE - 8];
-    e.input(&[0x80]);
-    if incomplete_block_len(&e) > zeroes.len() {
-        e.input(&zeroes);
+        let zeroes = [0; BLOCK_SIZE - 8];
+        e.input(&[0x80]);
+        if incomplete_block_len(&e) > zeroes.len() {
+            e.input(&zeroes);
+        }
+        let pad_length = zeroes.len() - incomplete_block_len(&e);
+        e.input(&zeroes[..pad_length]);
+        debug_assert_eq!(incomplete_block_len(&e), zeroes.len());
+
+        e.input(&(8 * n_bytes_hashed).to_be_bytes());
+        debug_assert_eq!(incomplete_block_len(&e), 0);
+
+        Hash(e.midstate())
     }
-    let pad_length = zeroes.len() - incomplete_block_len(&e);
-    e.input(&zeroes[..pad_length]);
-    debug_assert_eq!(incomplete_block_len(&e), zeroes.len());
-
-    e.input(&(8 * n_bytes_hashed).to_be_bytes());
-    debug_assert_eq!(incomplete_block_len(&e), 0);
-
-    Hash(e.midstate())
-}
 }
 
 const BLOCK_SIZE: usize = 64;
diff --git a/hashes/src/sha256/mod.rs b/hashes/src/sha256/mod.rs
index 1def47bf5..39c3257be 100644
--- a/hashes/src/sha256/mod.rs
+++ b/hashes/src/sha256/mod.rs
@@ -110,38 +110,38 @@ impl crate::HashEngine for HashEngine {
 }
 
 impl Hash {
-/// Finalize a hash engine to obtain a hash.
-#[cfg(not(hashes_fuzz))]
-pub fn from_engine(mut e: HashEngine) -> Self {
-    // pad buffer with a single 1-bit then all 0s, until there are exactly 8 bytes remaining
-    let n_bytes_hashed = e.bytes_hashed;
+    /// Finalize a hash engine to obtain a hash.
+    #[cfg(not(hashes_fuzz))]
+    pub fn from_engine(mut e: HashEngine) -> Self {
+        // pad buffer with a single 1-bit then all 0s, until there are exactly 8 bytes remaining
+        let n_bytes_hashed = e.bytes_hashed;
 
-    let zeroes = [0; BLOCK_SIZE - 8];
-    e.input(&[0x80]);
-    if incomplete_block_len(&e) > zeroes.len() {
-        e.input(&zeroes);
+        let zeroes = [0; BLOCK_SIZE - 8];
+        e.input(&[0x80]);
+        if incomplete_block_len(&e) > zeroes.len() {
+            e.input(&zeroes);
+        }
+        let pad_length = zeroes.len() - incomplete_block_len(&e);
+        e.input(&zeroes[..pad_length]);
+        debug_assert_eq!(incomplete_block_len(&e), zeroes.len());
+
+        e.input(&(8 * n_bytes_hashed).to_be_bytes());
+        debug_assert_eq!(incomplete_block_len(&e), 0);
+
+        Hash(e.midstate_unchecked().bytes)
     }
-    let pad_length = zeroes.len() - incomplete_block_len(&e);
-    e.input(&zeroes[..pad_length]);
-    debug_assert_eq!(incomplete_block_len(&e), zeroes.len());
 
-    e.input(&(8 * n_bytes_hashed).to_be_bytes());
-    debug_assert_eq!(incomplete_block_len(&e), 0);
-
-    Hash(e.midstate_unchecked().bytes)
-}
-
-/// Finalize a hash engine to obtain a hash.
-#[cfg(hashes_fuzz)]
-pub fn from_engine(e: HashEngine) -> Self {
-    let mut hash = e.midstate_unchecked().bytes;
-    if hash == [0; 32] {
-        // Assume sha256 is secure and never generate 0-hashes (which represent invalid
-        // secp256k1 secret keys, causing downstream application breakage).
-        hash[0] = 1;
+    /// Finalize a hash engine to obtain a hash.
+    #[cfg(hashes_fuzz)]
+    pub fn from_engine(e: HashEngine) -> Self {
+        let mut hash = e.midstate_unchecked().bytes;
+        if hash == [0; 32] {
+            // Assume sha256 is secure and never generate 0-hashes (which represent invalid
+            // secp256k1 secret keys, causing downstream application breakage).
+            hash[0] = 1;
+        }
+        Hash(hash)
     }
-    Hash(hash)
-}
 
     /// Iterate the sha256 algorithm to turn a sha256 hash into a sha256d hash
     #[must_use]
diff --git a/hashes/src/sha256d/mod.rs b/hashes/src/sha256d/mod.rs
index 8ec236e2c..add1935e1 100644
--- a/hashes/src/sha256d/mod.rs
+++ b/hashes/src/sha256d/mod.rs
@@ -11,15 +11,15 @@ crate::internal_macros::general_hash_type! {
 }
 
 impl Hash {
-/// Finalize a hash engine to produce a hash.
-pub fn from_engine(e: HashEngine) -> Self {
-    let sha2 = sha256::Hash::from_engine(e.0);
-    let sha2d = sha256::Hash::hash(sha2.as_byte_array());
+    /// Finalize a hash engine to produce a hash.
+    pub fn from_engine(e: HashEngine) -> Self {
+        let sha2 = sha256::Hash::from_engine(e.0);
+        let sha2d = sha256::Hash::hash(sha2.as_byte_array());
 
-    let mut ret = [0; 32];
-    ret.copy_from_slice(sha2d.as_byte_array());
-    Hash(ret)
-}
+        let mut ret = [0; 32];
+        ret.copy_from_slice(sha2d.as_byte_array());
+        Hash(ret)
+    }
 }
 
 /// Engine to compute SHA256d hash function.
diff --git a/hashes/src/sha384/mod.rs b/hashes/src/sha384/mod.rs
index e127e1b93..06d55e62e 100644
--- a/hashes/src/sha384/mod.rs
+++ b/hashes/src/sha384/mod.rs
@@ -11,12 +11,12 @@ crate::internal_macros::general_hash_type! {
 }
 
 impl Hash {
-/// Finalize a hash engine to produce a hash.
-pub fn from_engine(e: HashEngine) -> Self {
-    let mut ret = [0; 48];
-    ret.copy_from_slice(&sha512::Hash::from_engine(e.0).as_byte_array()[..48]);
-    Hash(ret)
-}
+    /// Finalize a hash engine to produce a hash.
+    pub fn from_engine(e: HashEngine) -> Self {
+        let mut ret = [0; 48];
+        ret.copy_from_slice(&sha512::Hash::from_engine(e.0).as_byte_array()[..48]);
+        Hash(ret)
+    }
 }
 
 /// Engine to compute SHA384 hash function.
diff --git a/hashes/src/sha512/mod.rs b/hashes/src/sha512/mod.rs
index 91814488e..0f73f328e 100644
--- a/hashes/src/sha512/mod.rs
+++ b/hashes/src/sha512/mod.rs
@@ -21,35 +21,35 @@ crate::internal_macros::general_hash_type! {
 }
 
 impl Hash {
-/// Finalize a hash engine to produce a hash.
-#[cfg(not(hashes_fuzz))]
-pub fn from_engine(mut e: HashEngine) -> Self {
-    // pad buffer with a single 1-bit then all 0s, until there are exactly 16 bytes remaining
-    let n_bytes_hashed = e.bytes_hashed;
+    /// Finalize a hash engine to produce a hash.
+    #[cfg(not(hashes_fuzz))]
+    pub fn from_engine(mut e: HashEngine) -> Self {
+        // pad buffer with a single 1-bit then all 0s, until there are exactly 16 bytes remaining
+        let n_bytes_hashed = e.bytes_hashed;
 
-    let zeroes = [0; BLOCK_SIZE - 16];
-    e.input(&[0x80]);
-    if incomplete_block_len(&e) > zeroes.len() {
-        e.input(&zeroes);
+        let zeroes = [0; BLOCK_SIZE - 16];
+        e.input(&[0x80]);
+        if incomplete_block_len(&e) > zeroes.len() {
+            e.input(&zeroes);
+        }
+        let pad_length = zeroes.len() - incomplete_block_len(&e);
+        e.input(&zeroes[..pad_length]);
+        debug_assert_eq!(incomplete_block_len(&e), zeroes.len());
+
+        e.input(&[0; 8]);
+        e.input(&(8 * n_bytes_hashed).to_be_bytes());
+        debug_assert_eq!(incomplete_block_len(&e), 0);
+
+        Hash(e.midstate())
     }
-    let pad_length = zeroes.len() - incomplete_block_len(&e);
-    e.input(&zeroes[..pad_length]);
-    debug_assert_eq!(incomplete_block_len(&e), zeroes.len());
 
-    e.input(&[0; 8]);
-    e.input(&(8 * n_bytes_hashed).to_be_bytes());
-    debug_assert_eq!(incomplete_block_len(&e), 0);
-
-    Hash(e.midstate())
-}
-
-/// Finalize a hash engine to produce a hash.
-#[cfg(hashes_fuzz)]
-pub fn from_engine(e: HashEngine) -> Self {
-    let mut hash = e.midstate();
-    hash[0] ^= 0xff; // Make this distinct from SHA-256
-    Hash(hash)
-}
+    /// Finalize a hash engine to produce a hash.
+    #[cfg(hashes_fuzz)]
+    pub fn from_engine(e: HashEngine) -> Self {
+        let mut hash = e.midstate();
+        hash[0] ^= 0xff; // Make this distinct from SHA-256
+        Hash(hash)
+    }
 }
 
 pub(crate) const BLOCK_SIZE: usize = 128;
diff --git a/hashes/src/sha512_256/mod.rs b/hashes/src/sha512_256/mod.rs
index 7cd817820..291eac9f7 100644
--- a/hashes/src/sha512_256/mod.rs
+++ b/hashes/src/sha512_256/mod.rs
@@ -16,12 +16,12 @@ crate::internal_macros::general_hash_type! {
 }
 
 impl Hash {
-/// Finalize a hash engine to produce a hash.
-pub fn from_engine(e: HashEngine) -> Self {
-    let mut ret = [0; 32];
-    ret.copy_from_slice(&sha512::Hash::from_engine(e.0).as_byte_array()[..32]);
-    Hash(ret)
-}
+    /// Finalize a hash engine to produce a hash.
+    pub fn from_engine(e: HashEngine) -> Self {
+        let mut ret = [0; 32];
+        ret.copy_from_slice(&sha512::Hash::from_engine(e.0).as_byte_array()[..32]);
+        Hash(ret)
+    }
 }
 
 /// Engine to compute SHA512/256 hash function.