[DO NOT MERGE] Test the hashbrown add-is_empty-checks branch.

Author: nnethercote

Cargo.lock

@@ -1533,6 +1533,11 @@ name = "hashbrown"
 version = "0.11.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "362385356d610bd1e5a408ddf8d022041774b683f345a1d2cfcb4f60f8ae2db5"
+
+[[package]]
+name = "hashbrown"
+version = "0.11.2"
+source = "git+https://github.com/nnethercote/hashbrown?branch=add-is_empty-checks#dec8e8cccbb6e2742b9f551bb9b95d4a8a9d0b63"
 dependencies = [
  "compiler_builtins",
  "rustc-std-workspace-alloc",
@@ -1683,7 +1688,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "bc633605454125dec4b66843673f01c7df2b89479b32e0ed634e43a91cff62a5"
 dependencies = [
  "autocfg",
- "hashbrown",
+ "hashbrown 0.11.0",
  "serde",
 ]
 
@@ -5001,7 +5006,7 @@ dependencies = [
  "core",
  "dlmalloc",
  "fortanix-sgx-abi",
- "hashbrown",
+ "hashbrown 0.11.2",
  "hermit-abi",
  "libc",
  "miniz_oxide",

library/std/Cargo.toml

@@ -19,7 +19,7 @@ libc = { version = "0.2.108", default-features = false, features = ['rustc-dep-o
 compiler_builtins = { version = "0.1.66" }
 profiler_builtins = { path = "../profiler_builtins", optional = true }
 unwind = { path = "../unwind" }
-hashbrown = { version = "0.11", default-features = false, features = ['rustc-dep-of-std'] }
+hashbrown = { git = "https://github.com/nnethercote/hashbrown", branch = "add-is_empty-checks", default-features = false, features = ['rustc-dep-of-std'] }
 std_detect = { path = "../stdarch/crates/std_detect", default-features = false, features = ['rustc-dep-of-std'] }
 
 # Dependencies of the `backtrace` crate