add patch to fix tests on i686

Signed-off-by: Igor Gnatenko <ignatenkobrain@fedoraproject.org>

0001-Fix-failing-doctests-on-i686-64.patch

@@ -0,0 +1,53 @@
+From 02c2c5953c1ab19db697cc6916f38d93d2550116 Mon Sep 17 00:00:00 2001
+From: Stjepan Glavina <stjepang@gmail.com>
+Date: Fri, 16 Feb 2018 11:51:46 +0100
+Subject: [PATCH] Fix failing doctests on i686 (#64)
+
+---
+ src/atomic.rs | 12 ++++++------
+ 1 file changed, 6 insertions(+), 6 deletions(-)
+
+diff --git a/src/atomic.rs b/src/atomic.rs
+index 0677332..d5e9bd6 100644
+--- a/src/atomic.rs
++++ b/src/atomic.rs
+@@ -681,8 +681,8 @@ impl<T> Owned<T> {
+     ///
+     /// let o = Owned::new(0u64);
+     /// assert_eq!(o.tag(), 0);
+-    /// let o = o.with_tag(5);
+-    /// assert_eq!(o.tag(), 5);
++    /// let o = o.with_tag(2);
++    /// assert_eq!(o.tag(), 2);
+     /// ```
+     pub fn with_tag(self, tag: usize) -> Owned<T> {
+         let data = self.into_data();
+@@ -985,10 +985,10 @@ impl<'g, T> Shared<'g, T> {
+     /// use crossbeam_epoch::{self as epoch, Atomic, Owned};
+     /// use std::sync::atomic::Ordering::SeqCst;
+     ///
+-    /// let a = Atomic::<u64>::from(Owned::new(0u64).with_tag(5));
++    /// let a = Atomic::<u64>::from(Owned::new(0u64).with_tag(2));
+     /// let guard = &epoch::pin();
+     /// let p = a.load(SeqCst, guard);
+-    /// assert_eq!(p.tag(), 5);
++    /// assert_eq!(p.tag(), 2);
+     /// ```
+     pub fn tag(&self) -> usize {
+         let (_, tag) = decompose_data::<T>(self.data);
+@@ -1007,10 +1007,10 @@ impl<'g, T> Shared<'g, T> {
+     /// let a = Atomic::new(0u64);
+     /// let guard = &epoch::pin();
+     /// let p1 = a.load(SeqCst, guard);
+-    /// let p2 = p1.with_tag(5);
++    /// let p2 = p1.with_tag(2);
+     ///
+     /// assert_eq!(p1.tag(), 0);
+-    /// assert_eq!(p2.tag(), 5);
++    /// assert_eq!(p2.tag(), 2);
+     /// assert_eq!(p1.as_raw(), p2.as_raw());
+     /// ```
+     pub fn with_tag(&self, tag: usize) -> Shared<'g, T> {
+-- 
+2.16.1
+

rust-crossbeam-epoch.spec

@@ -15,6 +15,8 @@ Source0:        https://crates.io/api/v1/crates/%{crate}/%{version}/download#/%{
 # Initial patched metadata
 # * Bump lazy_static to 1, rand to 0.4: https://github.com/crossbeam-rs/crossbeam-epoch/pull/62
 Patch0:         crossbeam-epoch-0.4.0-fix-metadata.diff
+# https://github.com/crossbeam-rs/crossbeam-epoch/commit/02c2c5953c1ab19db697cc6916f38d93d2550116
+Patch0001:      0001-Fix-failing-doctests-on-i686-64.patch
 
 ExclusiveArch:  %{rust_arches}