Issue #207: Rollback MSRV bump (#208)

Signed-off-by: Tom Kaitchuck <Tom.Kaitchuck@gmail.com>

Author: tkaitchuck

Cargo.toml

@@ -12,7 +12,7 @@ edition = "2018"
 readme = "README.md"
 build = "./build.rs"
 exclude = ["/smhasher", "/benchmark_tools"]
-rust-version = "1.72.0"
+rust-version = "1.60.0"
 
 [lib]
 name = "ahash"

src/lib.rs

@@ -108,7 +108,7 @@ mod fallback_hash;
 cfg_if::cfg_if! {
     if #[cfg(any(
             all(any(target_arch = "x86", target_arch = "x86_64"), target_feature = "aes", not(miri)),
-            all(target_arch = "aarch64", target_feature = "aes", not(miri)),
+            all(feature = "nightly-arm-aes", target_arch = "aarch64", target_feature = "aes", not(miri)),
             all(feature = "nightly-arm-aes", target_arch = "arm", target_feature = "aes", not(miri)),
         ))] {
         mod aes_hash;

src/operations.rs

@@ -1,4 +1,5 @@
 use crate::convert::*;
+#[allow(unused)]
 use zerocopy::transmute;
 
 ///This constant comes from Kunth's prng (Empirically it works better than those from splitmix32).
@@ -111,7 +112,7 @@ pub(crate) fn aesenc(value: u128, xor: u128) -> u128 {
 }
 
 #[cfg(any(
-    all(target_arch = "aarch64", target_feature = "aes", not(miri)),
+    all(feature = "nightly-arm-aes", target_arch = "aarch64", target_feature = "aes", not(miri)),
     all(feature = "nightly-arm-aes", target_arch = "arm", target_feature = "aes", not(miri)),
 ))]
 #[allow(unused)]
@@ -141,7 +142,7 @@ pub(crate) fn aesdec(value: u128, xor: u128) -> u128 {
 }
 
 #[cfg(any(
-    all(target_arch = "aarch64", target_feature = "aes", not(miri)),
+    all(feature = "nightly-arm-aes", target_arch = "aarch64", target_feature = "aes", not(miri)),
     all(feature = "nightly-arm-aes", target_arch = "arm", target_feature = "aes", not(miri)),
 ))]
 #[allow(unused)]

src/random_state.rs

@@ -2,7 +2,7 @@ use core::hash::Hash;
 cfg_if::cfg_if! {
     if #[cfg(any(
         all(any(target_arch = "x86", target_arch = "x86_64"), target_feature = "aes", not(miri)),
-        all(target_arch = "aarch64", target_feature = "aes", not(miri)),
+        all(feature = "nightly-arm-aes", target_arch = "aarch64", target_feature = "aes", not(miri)),
         all(feature = "nightly-arm-aes", target_arch = "arm", target_feature = "aes", not(miri)),
     ))] {
         use crate::aes_hash::*;

tests/bench.rs

@@ -14,7 +14,7 @@ const AHASH_IMPL: &str = if cfg!(any(
         target_feature = "aes",
         not(miri),
     ),
-    all(target_arch = "aarch64", target_feature = "aes", not(miri)),
+    all(feature = "nightly-arm-aes", target_arch = "aarch64", target_feature = "aes", not(miri)),
     all(
         feature = "nightly-arm-aes",
         target_arch = "arm",