Upgrade to latest Rust

Still missing a few Beta features, but it compiles!

- Copy requires Clone
- current_dir returns a Path now
- num_cpus moved to a crate

2 files changed, 2 insertions, 2 deletions

diff --git a/src/output/details.rs b/src/output/details.rs
index 8e73e69..d512432 100644
--- a/src/output/details.rs
+++ b/src/output/details.rs
@@ -19,7 +19,7 @@ use ansi_term::Style::Plain;
 ///
 /// Almost all the heavy lifting is done in a Table object, which handles the
 /// columns for each row.
-#[derive(PartialEq, Debug, Copy)]
+#[derive(PartialEq, Debug, Copy, Clone)]
 pub struct Details {
 
     /// A Columns object that says which columns should be included in the
diff --git a/src/output/grid.rs b/src/output/grid.rs
index 0bd4cf7..abdc638 100644
--- a/src/output/grid.rs
+++ b/src/output/grid.rs
@@ -5,7 +5,7 @@ use super::lines::lines_view;
 use std::cmp::max;
 use std::iter::{AdditiveIterator, repeat};
 
-#[derive(PartialEq, Debug, Copy)]
+#[derive(PartialEq, Debug, Copy, Clone)]
 pub struct Grid {
     pub across: bool,
     pub console_width: usize,