From bf86fd522114d8064360682bacd23327a84dbfa4 Mon Sep 17 00:00:00 2001
From: Joshua Nelson <jyn514@gmail.com>
Date: Fri, 22 Jan 2021 10:31:18 -0500
Subject: [PATCH] Fix <unknown> queries

This happened because `alloc_query_strings` was never called.
---
 src/librustdoc/lib.rs | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/src/librustdoc/lib.rs b/src/librustdoc/lib.rs
index 719aca612f50..19d2de58ffb0 100644
--- a/src/librustdoc/lib.rs
+++ b/src/librustdoc/lib.rs
@@ -568,7 +568,7 @@ fn main_options(options: config::Options) -> MainResult {
                 info!("going to format");
                 let (error_format, edition, debugging_options) = diag_opts;
                 let diag = core::new_handler(error_format, None, &debugging_options);
-                match output_format {
+                let main_result = match output_format {
                     None | Some(config::OutputFormat::Html) => sess.time("render_html", || {
                         run_renderer::<html::render::Context<'_>>(
                             krate,
@@ -589,7 +589,10 @@ fn main_options(options: config::Options) -> MainResult {
                             tcx,
                         )
                     }),
-                }
+                };
+                // NOTE: this is normally called in codegen, but rustdoc never goes to codegen.
+                tcx.alloc_self_profile_query_strings();
+                main_result
             })
         })
     })