7 files changed, 9 insertions, 23 deletions
diff --git a/src/config_list.rs b/src/config_list.rs
index b819418..2c1a6a4 100644
--- a/src/config_list.rs
+++ b/src/config_list.rs
@@ -1,12 +1,8 @@
 use std::ops::Drop;
-use std::ffi::{CStr, CString};
-use supercow::Supercow;
 
 use ffi;
 use Database;
-use Filenames;
-use FilenamesOwner;
-use utils::{ToStr, ScopedSupercow, ScopedPhantomcow};
+use utils::{ToStr, ScopedPhantomcow};
 
 
 #[derive(Debug)]
diff --git a/src/error.rs b/src/error.rs
index 824cc39..64d0716 100644
--- a/src/error.rs
+++ b/src/error.rs
@@ -27,7 +27,7 @@ impl std::error::Error for Error {
         }
     }
 
-    fn cause(&self) -> Option<&error::Error> {
+    fn cause(&self) -> Option<&dyn error::Error> {
         match *self {
             Error::IoError(ref e) => Some(e),
             Error::NotmuchError(ref e) => Some(e),
diff --git a/src/index.rs b/src/index.rs
index f070020..4db6bc7 100644
--- a/src/index.rs
+++ b/src/index.rs
@@ -1,13 +1,10 @@
 use std::ops::Drop;
-use supercow::{Supercow, Phantomcow};
 
-use error::{Error, Result};
+use error::Result;
 use ffi;
 use ffi::DecryptionPolicy;
 use Database;
-use Filenames;
-use FilenamesOwner;
-use utils::{ScopedSupercow, ScopedPhantomcow};
+use utils::ScopedPhantomcow;
 
 
 #[derive(Debug)]
diff --git a/src/message.rs b/src/message.rs
index 20ad957..55a544f 100644
--- a/src/message.rs
+++ b/src/message.rs
@@ -1,5 +1,5 @@
-use std::ffi::{CString, CStr};
-use std::path::{Path, PathBuf};
+use std::ffi::CString;
+use std::path::PathBuf;
 use std::cell::RefCell;
 use std::borrow::Cow;
 use std::ptr;
diff --git a/src/message_properties.rs b/src/message_properties.rs
index 19ea960..bd20aa0 100644
--- a/src/message_properties.rs
+++ b/src/message_properties.rs
@@ -1,11 +1,10 @@
 use std::ops::Drop;
-use std::ffi::{CStr, CString};
-use supercow::Supercow;
+use std::ffi::CStr;
 
 use ffi;
 use Message;
 use MessageOwner;
-use utils::{ScopedSupercow, ScopedPhantomcow};
+use utils::{ScopedPhantomcow};
 
 
 #[derive(Debug)]
diff --git a/src/messages.rs b/src/messages.rs
index 60a6f7d..48d30ef 100644
--- a/src/messages.rs
+++ b/src/messages.rs
@@ -1,5 +1,3 @@
-use std::ops::Drop;
-
 use ffi;
 use utils::ScopedPhantomcow;
 use MessageOwner;
diff --git a/src/utils.rs b/src/utils.rs
index 6030f38..57e4004 100644
--- a/src/utils.rs
+++ b/src/utils.rs
@@ -4,6 +4,7 @@ use std::borrow::Cow;
 use supercow::{Supercow, DefaultFeatures/*, NonSyncFeatures*/};
 use supercow::ext::{BoxedStorage};
 
+
 pub trait ToStr {
     fn to_str<'a>(&self) -> Result<&'a str, str::Utf8Error>;
 
@@ -48,8 +49,3 @@ pub type ScopedPhantomcow<'a, OWNED, BORROWED = OWNED,
 
 pub type ScopedSupercow<'a, OWNED, BORROWED = OWNED, SHARED = Box<dyn DefaultFeatures<'a> + 'a>> =
     Supercow<'a, OWNED, BORROWED, SHARED, BoxedStorage>;
-
-
-
-
-