update to Rust 2018 edition

* specify 2018 edition in the manifest
* changes to fix build with 2018 edition

2 files changed, 4 insertions, 2 deletions

diff --git a/src/bits32/eflags.rs b/src/bits32/eflags.rs
index ca75130..b2c58d8 100644
--- a/src/bits32/eflags.rs
+++ b/src/bits32/eflags.rs
@@ -1,6 +1,8 @@
 //! Processor state stored in the EFLAGS register.
 
-use Ring;
+use bitflags::*;
+
+use crate::Ring;
 
 /// The EFLAGS register.
 bitflags! {
diff --git a/src/bits32/segmentation.rs b/src/bits32/segmentation.rs
index d46070e..b046035 100644
--- a/src/bits32/segmentation.rs
+++ b/src/bits32/segmentation.rs
@@ -1,5 +1,5 @@
 #[allow(unused_imports)]
-use segmentation::SegmentSelector;
+use crate::segmentation::SegmentSelector;
 
 /// Reload code segment register.
 /// Note this is special since we can not directly move