Re-enable android tests/benches in alloc

Author: saethlin

Diff for: alloc/benches/lib.rs

@@ -1,6 +1,3 @@
-// Disabling on android for the time being
-// See https://github.com/rust-lang/rust/issues/73535#event-3477699747
-#![cfg(not(target_os = "android"))]
 // Disabling in Miri as these would take too long.
 #![cfg(not(miri))]
 #![feature(btree_extract_if)]

Diff for: alloc/tests/string.rs

@@ -723,7 +723,6 @@ fn test_reserve_exact() {
 
 #[test]
 #[cfg_attr(miri, ignore)] // Miri does not support signalling OOM
-#[cfg_attr(target_os = "android", ignore)] // Android used in CI has a broken dlmalloc
 fn test_try_with_capacity() {
     let string = String::try_with_capacity(1000).unwrap();
     assert_eq!(0, string.len());
@@ -734,7 +733,6 @@ fn test_try_with_capacity() {
 
 #[test]
 #[cfg_attr(miri, ignore)] // Miri does not support signalling OOM
-#[cfg_attr(target_os = "android", ignore)] // Android used in CI has a broken dlmalloc
 fn test_try_reserve() {
     // These are the interesting cases:
     // * exactly isize::MAX should never trigger a CapacityOverflow (can be OOM)
@@ -803,7 +801,6 @@ fn test_try_reserve() {
 
 #[test]
 #[cfg_attr(miri, ignore)] // Miri does not support signalling OOM
-#[cfg_attr(target_os = "android", ignore)] // Android used in CI has a broken dlmalloc
 fn test_try_reserve_exact() {
     // This is exactly the same as test_try_reserve with the method changed.
     // See that test for comments.

Diff for: alloc/tests/vec.rs

@@ -1695,7 +1695,6 @@ fn test_reserve_exact() {
 
 #[test]
 #[cfg_attr(miri, ignore)] // Miri does not support signalling OOM
-#[cfg_attr(target_os = "android", ignore)] // Android used in CI has a broken dlmalloc
 fn test_try_with_capacity() {
     let mut vec: Vec<u32> = Vec::try_with_capacity(5).unwrap();
     assert_eq!(0, vec.len());
@@ -1707,7 +1706,6 @@ fn test_try_with_capacity() {
 
 #[test]
 #[cfg_attr(miri, ignore)] // Miri does not support signalling OOM
-#[cfg_attr(target_os = "android", ignore)] // Android used in CI has a broken dlmalloc
 fn test_try_reserve() {
     // These are the interesting cases:
     // * exactly isize::MAX should never trigger a CapacityOverflow (can be OOM)
@@ -1803,7 +1801,6 @@ fn test_try_reserve() {
 
 #[test]
 #[cfg_attr(miri, ignore)] // Miri does not support signalling OOM
-#[cfg_attr(target_os = "android", ignore)] // Android used in CI has a broken dlmalloc
 fn test_try_reserve_exact() {
     // This is exactly the same as test_try_reserve with the method changed.
     // See that test for comments.

Diff for: alloc/tests/vec_deque.rs

@@ -1185,7 +1185,6 @@ fn test_reserve_exact_2() {
 
 #[test]
 #[cfg_attr(miri, ignore)] // Miri does not support signalling OOM
-#[cfg_attr(target_os = "android", ignore)] // Android used in CI has a broken dlmalloc
 fn test_try_with_capacity() {
     let vec: VecDeque<u32> = VecDeque::try_with_capacity(5).unwrap();
     assert_eq!(0, vec.len());
@@ -1196,7 +1195,6 @@ fn test_try_with_capacity() {
 
 #[test]
 #[cfg_attr(miri, ignore)] // Miri does not support signalling OOM
-#[cfg_attr(target_os = "android", ignore)] // Android used in CI has a broken dlmalloc
 fn test_try_reserve() {
     // These are the interesting cases:
     // * exactly isize::MAX should never trigger a CapacityOverflow (can be OOM)
@@ -1292,7 +1290,6 @@ fn test_try_reserve() {
 
 #[test]
 #[cfg_attr(miri, ignore)] // Miri does not support signalling OOM
-#[cfg_attr(target_os = "android", ignore)] // Android used in CI has a broken dlmalloc
 fn test_try_reserve_exact() {
     // This is exactly the same as test_try_reserve with the method changed.
     // See that test for comments.