Whitelist false positive std (#234)

ci/tsan

@@ -22,3 +22,7 @@ race:__call_tls_dtors
 # `is_inline_or_static` is explicitly called concurrently without synchronization.
 # The safety explanation can be found in a comment.
 race:Inner::is_inline_or_static
+
+# This ignores a false positive caused by `thread::park()`/`thread::unpark()`.
+# See: https://github.com/rust-lang/rust/pull/54806#issuecomment-436193353
+race:pthread_cond_destroy