Fix warnings

Author: sanket1729

src/descriptor/mod.rs

@@ -921,7 +921,7 @@ mod tests {
         struct SimpleSat {
             sig: secp256k1::Signature,
             pk: bitcoin::PublicKey,
-        };
+        }
 
         impl Satisfier<bitcoin::PublicKey> for SimpleSat {
             fn lookup_sig(&self, pk: &bitcoin::PublicKey) -> Option<BitcoinSig> {

src/interpreter/error.rs

@@ -103,7 +103,7 @@ impl From<::Error> for Error {
 }
 
 impl error::Error for Error {
-    fn cause(&self) -> Option<&error::Error> {
+    fn cause(&self) -> Option<&dyn error::Error> {
         match *self {
             Error::Secp(ref err) => Some(err),
             ref x => Some(x),

src/interpreter/mod.rs

@@ -847,7 +847,7 @@ mod tests {
                 height: 1002,
                 has_errored: false,
             }
-        };
+        }
 
         let pk = ms_str!("c:pk_k({})", pks[0]);
         let pkh = ms_str!("c:pk_h({})", pks[1].to_pubkeyhash());

src/lib.rs

@@ -87,7 +87,6 @@
 //! ```
 //!
 //!
-#![allow(bare_trait_objects)]
 #![cfg_attr(all(test, feature = "unstable"), feature(test))]
 // Coding conventions
 #![deny(unsafe_code)]
@@ -563,7 +562,7 @@ fn errstr(s: &str) -> Error {
 }
 
 impl error::Error for Error {
-    fn cause(&self) -> Option<&error::Error> {
+    fn cause(&self) -> Option<&dyn error::Error> {
         match *self {
             Error::BadPubkey(ref e) => Some(e),
             _ => None,

src/miniscript/types/mod.rs

@@ -105,7 +105,7 @@ pub struct Error<Pk: MiniscriptKey, Ctx: ScriptContext> {
 }
 
 impl<Pk: MiniscriptKey, Ctx: ScriptContext> error::Error for Error<Pk, Ctx> {
-    fn cause(&self) -> Option<&error::Error> {
+    fn cause(&self) -> Option<&dyn error::Error> {
         None
     }
 

src/policy/mod.rs

@@ -73,7 +73,7 @@ impl error::Error for LiftError {
     fn description(&self) -> &str {
         ""
     }
-    fn cause(&self) -> Option<&error::Error> {
+    fn cause(&self) -> Option<&dyn error::Error> {
         None
     }
 }

src/psbt/mod.rs

@@ -261,7 +261,7 @@ impl<'psbt, Pk: MiniscriptKey + ToPublicKey> Satisfier<Pk> for PsbtInputSatisfie
         if seq == 0xffffffff {
             false
         } else {
-            <Satisfier<Pk>>::check_after(&After(locktime), n)
+            <dyn Satisfier<Pk>>::check_after(&After(locktime), n)
         }
     }
 
@@ -277,7 +277,7 @@ impl<'psbt, Pk: MiniscriptKey + ToPublicKey> Satisfier<Pk> for PsbtInputSatisfie
             // transaction version and sequence check
             false
         } else {
-            <Satisfier<Pk>>::check_older(&Older(seq), n)
+            <dyn Satisfier<Pk>>::check_older(&Older(seq), n)
         }
     }