Make boxed errors Send + Sync

3 files changed, 4 insertions, 4 deletions

diff --git a/src/file/source/file.rs b/src/file/source/file.rs
index 790933f..7bf29be 100644
--- a/src/file/source/file.rs
+++ b/src/file/source/file.rs
@@ -26,7 +26,7 @@ impl FileSourceFile {
 
     fn find_file(&self,
                  format_hint: Option<FileFormat>)
-                 -> Result<(PathBuf, FileFormat), Box<Error>> {
+                 -> Result<(PathBuf, FileFormat), Box<Error + Send + Sync>> {
         // First check for an _exact_ match
         let mut filename = env::current_dir()?.as_path().join(self.name.clone());
         if filename.is_file() {
@@ -83,7 +83,7 @@ impl FileSourceFile {
 impl FileSource for FileSourceFile {
     fn resolve(&self,
                format_hint: Option<FileFormat>)
-               -> Result<(Option<String>, String, FileFormat), Box<Error>> {
+               -> Result<(Option<String>, String, FileFormat), Box<Error + Send + Sync>> {
         // Find file
         let (filename, format) = self.find_file(format_hint)?;
 
diff --git a/src/file/source/mod.rs b/src/file/source/mod.rs
index 67e2cf1..f164d27 100644
--- a/src/file/source/mod.rs
+++ b/src/file/source/mod.rs
@@ -11,5 +11,5 @@ use super::FileFormat;
 pub trait FileSource: Debug + Clone {
     fn resolve(&self,
                format_hint: Option<FileFormat>)
-               -> Result<(Option<String>, String, FileFormat), Box<Error>>;
+               -> Result<(Option<String>, String, FileFormat), Box<Error + Send + Sync>>;
 }
diff --git a/src/file/source/string.rs b/src/file/source/string.rs
index 70101d6..5dbd1b9 100644
--- a/src/file/source/string.rs
+++ b/src/file/source/string.rs
@@ -18,7 +18,7 @@ impl<'a> From<&'a str> for FileSourceString {
 impl FileSource for FileSourceString {
     fn resolve(&self,
                format_hint: Option<FileFormat>)
-               -> Result<(Option<String>, String, FileFormat), Box<Error>> {
+               -> Result<(Option<String>, String, FileFormat), Box<Error + Send + Sync>> {
         Ok((None, self.0.clone(), format_hint.expect("from_str requires a set file format")))
     }
 }