From 92bfa05b07090be1b3bf32af0c8947a0f0b387e8 Mon Sep 17 00:00:00 2001
From: Aaron Hill <aa1ronham@gmail.com>
Date: Fri, 27 Nov 2020 15:46:19 -0500
Subject: [PATCH] Bump recursion_limit in rustc_ast_passes

When cfg(parallel_compiler) is enabled, we end up trying to prove
Send/Sync bounds for some deeply nested types (at least when rustdoc is
run).
---
 compiler/rustc_ast_passes/src/lib.rs | 1 +
 1 file changed, 1 insertion(+)

diff --git a/compiler/rustc_ast_passes/src/lib.rs b/compiler/rustc_ast_passes/src/lib.rs
index bfe304419801d..7487421e709a7 100644
--- a/compiler/rustc_ast_passes/src/lib.rs
+++ b/compiler/rustc_ast_passes/src/lib.rs
@@ -6,6 +6,7 @@
 
 #![feature(bindings_after_at)]
 #![feature(iter_is_partitioned)]
+#![recursion_limit = "256"]
 
 pub mod ast_validation;
 pub mod feature_gate;