We can assume has_i128 in Rust 1.26

Author: cuviper

Cargo.toml

@@ -11,7 +11,6 @@ documentation = "https://docs.rs/rayon/"
 readme = "README.md"
 keywords = ["parallel", "thread", "concurrency", "join", "performance"]
 categories = ["concurrency"]
-build = "build.rs"
 exclude = ["/ci/*", "/scripts/*", "/.travis.yml", "/appveyor.yml", "/bors.toml"]
 
 [workspace]

build.rs

@@ -58,7 +58,6 @@ pub fn execute_unindexed_range() {
     assert_eq!(b, c);
 }
 
-#[cfg(has_i128)]
 #[test]
 pub fn execute_pseudo_indexed_range() {
     use std::i128::MAX;

src/iter/test.rs

@@ -215,9 +215,7 @@ indexed_range_impl! {isize}
 // other Range<T> with just Iterator
 unindexed_range_impl! {u64, u64}
 unindexed_range_impl! {i64, u64}
-#[cfg(has_i128)]
 unindexed_range_impl! {u128, u128}
-#[cfg(has_i128)]
 unindexed_range_impl! {i128, u128}
 
 #[test]
@@ -230,7 +228,6 @@ fn check_range_split_at_overflow() {
     assert_eq!(r1 + r2, -100);
 }
 
-#[cfg(has_i128)]
 #[test]
 fn test_i128_len_doesnt_overflow() {
     use std::{i128, u128};
@@ -267,7 +264,6 @@ fn test_u64_opt_len() {
     }
 }
 
-#[cfg(has_i128)]
 #[test]
 fn test_u128_opt_len() {
     use std::{u128, usize};