Auto merge of #76771 - Dylan-DPC:rollup-qj4j3ma, r=Dylan-DPC

Rollup of 10 pull requests

Successful merges:

 - #73955 (deny(unsafe_op_in_unsafe_fn) in libstd/process.rs)
 - #75146 (Detect overflow in proc_macro_server subspan)
 - #75304 (Note when a a move/borrow error is caused by a deref coercion)
 - #75749 (Consolidate some duplicate code in the sys modules.)
 - #75882 (Use translated variable for test string)
 - #75886 (Test that bounds checks are elided for [..index] after .position())
 - #76048 (Initial support for riscv32gc_unknown_linux_gnu)
 - #76198 (Make some Ordering methods const)
 - #76689 (Upgrade to pulldown-cmark 0.8.0)
 - #76763 (Update cargo)

Failed merges:

r? `@ghost`

Author: bors

Cargo.lock

@@ -534,7 +534,7 @@ dependencies = [
  "if_chain",
  "itertools 0.9.0",
  "lazy_static",
- "pulldown-cmark",
+ "pulldown-cmark 0.7.2",
  "quine-mc_cluskey",
  "quote",
  "regex-syntax",
@@ -1853,7 +1853,7 @@ dependencies = [
  "log",
  "memchr",
  "open",
- "pulldown-cmark",
+ "pulldown-cmark 0.7.2",
  "regex",
  "serde",
  "serde_derive",
@@ -2511,6 +2511,17 @@ dependencies = [
  "unicase",
 ]
 
+[[package]]
+name = "pulldown-cmark"
+version = "0.8.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ffade02495f22453cd593159ea2f59827aae7f53fa8323f756799b670881dcf8"
+dependencies = [
+ "bitflags",
+ "memchr",
+ "unicase",
+]
+
 [[package]]
 name = "punycode"
 version = "0.4.1"
@@ -4122,7 +4133,7 @@ dependencies = [
  "expect-test",
  "itertools 0.9.0",
  "minifier",
- "pulldown-cmark",
+ "pulldown-cmark 0.8.0",
  "rustc-rayon",
  "serde",
  "serde_json",

compiler/rustc_expand/src/proc_macro_server.rs

@@ -584,12 +584,12 @@ impl server::Literal for Rustc<'_> {
 
         let start = match start {
             Bound::Included(lo) => lo,
-            Bound::Excluded(lo) => lo + 1,
+            Bound::Excluded(lo) => lo.checked_add(1)?,
             Bound::Unbounded => 0,
         };
 
         let end = match end {
-            Bound::Included(hi) => hi + 1,
+            Bound::Included(hi) => hi.checked_add(1)?,
             Bound::Excluded(hi) => hi,
             Bound::Unbounded => length,
         };