Auto merge of #93738 - m-ou-se:rollup-zjyd2et, r=m-ou-se

Rollup of 13 pull requests

Successful merges:

 - #88313 (Make the pre-commit script pre-push instead)
 - #91530 (Suggest 1-tuple parentheses on exprs without existing parens)
 - #92724 (Cleanup c_str.rs)
 - #93208 (Impl {Add,Sub,Mul,Div,Rem,BitXor,BitOr,BitAnd}Assign<$t> for Wrapping<$t> for rust 1.60.0)
 - #93394 (Don't allow {} to refer to implicit captures in format_args.)
 - #93416 (remove `allow_fail` test flag)
 - #93487 (Fix linking stage1 toolchain in `./x.py setup`)
 - #93673 (Linkify sidebar headings for sibling items)
 - #93680 (Drop json::from_reader)
 - #93682 (Update tracking issue for `const_fn_trait_bound`)
 - #93722 (Use shallow clones for submodules managed by rustbuild, not just bootstrap.py)
 - #93723 (Rerun bootstrap's build script when RUSTC changes)
 - #93737 (bootstrap: prefer using '--config' over 'RUST_BOOTSTRAP_CONFIG')

Failed merges:

r? `@ghost`
`@rustbot` modify labels: rollup

1 files changed, 0 insertions, 22 deletions

diff --git a/compiler/rustc_serialize/src/json.rs b/compiler/rustc_serialize/src/json.rs
index 044de8e4e24..6a398549241 100644
--- a/compiler/rustc_serialize/src/json.rs
+++ b/compiler/rustc_serialize/src/json.rs
@@ -185,8 +185,6 @@ use self::ParserState::*;
 
 use std::borrow::Cow;
 use std::collections::{BTreeMap, HashMap};
-use std::io;
-use std::io::prelude::*;
 use std::mem::swap;
 use std::num::FpCategory as Fp;
 use std::ops::Index;
@@ -250,7 +248,6 @@ pub enum ErrorCode {
 pub enum ParserError {
     /// msg, line, col
     SyntaxError(ErrorCode, usize, usize),
-    IoError(io::ErrorKind, String),
 }
 
 // Builder and Parser have the same errors.
@@ -329,10 +326,6 @@ impl fmt::Display for ErrorCode {
     }
 }
 
-fn io_error_to_error(io: io::Error) -> ParserError {
-    IoError(io.kind(), io.to_string())
-}
-
 impl fmt::Display for ParserError {
     fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
         // FIXME this should be a nicer error
@@ -2163,21 +2156,6 @@ impl<T: Iterator<Item = char>> Builder<T> {
     }
 }
 
-/// Decodes a json value from an `&mut io::Read`
-pub fn from_reader(rdr: &mut dyn Read) -> Result<Json, BuilderError> {
-    let mut contents = Vec::new();
-    match rdr.read_to_end(&mut contents) {
-        Ok(c) => c,
-        Err(e) => return Err(io_error_to_error(e)),
-    };
-    let s = match str::from_utf8(&contents).ok() {
-        Some(s) => s,
-        _ => return Err(SyntaxError(NotUtf8, 0, 0)),
-    };
-    let mut builder = Builder::new(s.chars());
-    builder.build()
-}
-
 /// Decodes a json value from a string
 pub fn from_str(s: &str) -> Result<Json, BuilderError> {
     let mut builder = Builder::new(s.chars());