Fix for compilation with stable rust

pkgar-core/src/lib.rs

 #![no_std]
-#![feature(min_const_generics)]
 extern crate alloc;
 
 use core::mem;
@@ -34,7 +33,7 @@ impl Mode {
     pub fn kind(self) -> Mode {
         self & Mode::KIND
     }
-    
+
     /// Only any permissions bits
     pub fn perm(self) -> Mode {
         self & Mode::PERM
@@ -59,4 +58,3 @@ mod tests {
         assert_eq!(ENTRY_SIZE, 308);
     }
 }
-

pkgar/src/bin.rs

@@ -146,7 +146,7 @@ pub fn create(
                     .read(true)
                     .open(&path)
                     .chain_err(|| &path )?;
-                
+
                 copy_and_hash(&mut entry_file, &mut archive_file, &mut buf)
                     .chain_err(|| &path )
                     .chain_err(|| format!("Writing entry to archive: '{}'", relative.display()) )?
@@ -179,7 +179,7 @@ pub fn create(
 
     //TODO: ensure file size matches
 
-    header.signature = sign::sign_detached(unsafe { &plain::as_bytes(&header)[64..] }, &secret_key).0;
+    header.signature = sign::sign_detached(unsafe { &plain::as_bytes(&header)[64..] }, &secret_key).to_bytes();
 
     // Write archive header
     archive_file.seek(SeekFrom::Start(0))
@@ -271,4 +271,3 @@ pub fn verify(
     }
     Ok(())
 }
-