Update dependencies

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "engiffen"
-version = "0.8.1"
+version = "0.8.2"
 authors = ["Jesse Bees <jesse@toomanybees.com>"]
 description = """
 Encodes GIF images from sequences of images. Includes an installable
@@ -24,13 +24,13 @@ debug-stderr = []
 globbing = ["glob"]
 
 [dependencies]
-lab = "~0.4"
-image = "~0.13"
+lab = "~0.8"
+image = "~0.19"
 gif = "~0.9"
-color_quant = "~1.0.0"
-getopts = "0.2.14"
-rayon = "~0.7"
-rand = "~0.3"
+color_quant = "~1.1"
+getopts = "0.2.21"
+rayon = "~1.8"
+rand = "~0.4"
 fnv = "~1.0"
 glob = { version = "~0.2", optional = true }
 

src/main.rs

@@ -42,7 +42,7 @@ impl fmt::Display for RuntimeError {
     }
 }
 
-fn run_engiffen(args: &Args) -> Result<((Option<String>, Duration)), RuntimeError> {
+fn run_engiffen(args: &Args) -> Result<(Option<String>, Duration), RuntimeError> {
     let mut source_images: Vec<_> = match args.source {
         SourceImages::StartEnd(ref dir, ref start_path, ref end_path) => {
             let start_string = start_path.as_os_str();

src/parse_args.rs

@@ -83,7 +83,7 @@ impl error::Error for ArgsError {
         }
     }
 
-    fn cause(&self) -> Option<&error::Error> {
+fn cause(&self) -> Option<&dyn error::Error> {
         match *self {
             ArgsError::Parse(ref err) => Some(err),
             ArgsError::ParseInt(ref err) => Some(err),