update to Rust 2018 edition

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

3 files changed, 8 insertions, 3 deletions

diff --git a/src/bits64/paging.rs b/src/bits64/paging.rs
index 90a8f9c..024f7d5 100644
--- a/src/bits64/paging.rs
+++ b/src/bits64/paging.rs
@@ -1,4 +1,7 @@
 //! Description of the data-structures for IA-32e paging mode.
+
+use bitflags::*;
+
 use core::convert::{From, Into};
 use core::fmt;
 use core::ops;
diff --git a/src/bits64/rflags.rs b/src/bits64/rflags.rs
index 0fac008..fe1d633 100644
--- a/src/bits64/rflags.rs
+++ b/src/bits64/rflags.rs
@@ -4,7 +4,9 @@
 //! The upper 32 bits of RFLAGS register is reserved.
 //! The lower 32 bits of RFLAGS is the same as EFLAGS.
 
-use Ring;
+use bitflags::*;
+
+use crate::Ring;
 
 /// The RFLAGS register.
 /// This is duplicated code from bits32 eflags.rs.
diff --git a/src/bits64/segmentation.rs b/src/bits64/segmentation.rs
index 02a0788..978025f 100644
--- a/src/bits64/segmentation.rs
+++ b/src/bits64/segmentation.rs
@@ -1,6 +1,6 @@
 #[allow(unused_imports)]
-use segmentation::SegmentSelector;
-use segmentation::{
+use crate::segmentation::SegmentSelector;
+use crate::segmentation::{
     BuildDescriptor, Descriptor, DescriptorBuilder, DescriptorType, GateDescriptorBuilder,
     LdtDescriptorBuilder, SystemDescriptorTypes64,
 };