rustup; patch out atomix_min/max tests

Author: RalfJung

rust-src.diff

@@ -0,0 +1,36 @@
+diff --git a/library/core/tests/atomic.rs b/library/core/tests/atomic.rs
+index b735957666f..539982eb0e4 100644
+--- a/library/core/tests/atomic.rs
++++ b/library/core/tests/atomic.rs
+@@ -61,6 +61,7 @@ fn uint_xor() {
+ 
+ #[test]
+ #[cfg(any(not(target_arch = "arm"), target_os = "linux"))] // Missing intrinsic in compiler-builtins
++#[cfg_attr(miri, ignore)] // FIXME: Miri does not support atomic_min
+ fn uint_min() {
+     let x = AtomicUsize::new(0xf731);
+     assert_eq!(x.fetch_min(0x137f, SeqCst), 0xf731);
+@@ -71,6 +72,7 @@ fn uint_min() {
+ 
+ #[test]
+ #[cfg(any(not(target_arch = "arm"), target_os = "linux"))] // Missing intrinsic in compiler-builtins
++#[cfg_attr(miri, ignore)] // FIXME: Miri does not support atomic_max
+ fn uint_max() {
+     let x = AtomicUsize::new(0x137f);
+     assert_eq!(x.fetch_max(0xf731, SeqCst), 0x137f);
+@@ -109,6 +111,7 @@ fn int_xor() {
+ 
+ #[test]
+ #[cfg(any(not(target_arch = "arm"), target_os = "linux"))] // Missing intrinsic in compiler-builtins
++#[cfg_attr(miri, ignore)] // FIXME: Miri does not support atomic_min
+ fn int_min() {
+     let x = AtomicIsize::new(0xf731);
+     assert_eq!(x.fetch_min(0x137f, SeqCst), 0xf731);
+@@ -119,6 +122,7 @@ fn int_min() {
+ 
+ #[test]
+ #[cfg(any(not(target_arch = "arm"), target_os = "linux"))] // Missing intrinsic in compiler-builtins
++#[cfg_attr(miri, ignore)] // FIXME: Miri does not support atomic_max
+ fn int_max() {
+     let x = AtomicIsize::new(0x137f);
+     assert_eq!(x.fetch_max(0xf731, SeqCst), 0x137f);

rust-version

@@ -1 +1 @@
-nightly-2020-12-21
+nightly-2021-02-23