Update hashbrown to 0.6.2

Pulls in rust-lang/hashbrown#119 which should be a good improvement for
compile times of hashmap-heavy crates.

Author: alexcrichton

Cargo.lock

@@ -1297,9 +1297,9 @@ dependencies = [
 
 [[package]]
 name = "hashbrown"
-version = "0.6.1"
+version = "0.6.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6587d09be37fb98a11cb08b9000a3f592451c1b1b613ca69d949160e313a430a"
+checksum = "3cd9867f119b19fecb08cd5c326ad4488d7a1da4bf75b4d95d71db742525aaab"
 dependencies = [
  "autocfg",
  "compiler_builtins",
@@ -4146,7 +4146,7 @@ dependencies = [
  "core",
  "dlmalloc",
  "fortanix-sgx-abi",
- "hashbrown 0.6.1",
+ "hashbrown 0.6.2",
  "libc",
  "panic_abort",
  "panic_unwind",

src/libstd/Cargo.toml

@@ -23,7 +23,7 @@ libc = { version = "0.2.51", default-features = false, features = ['rustc-dep-of
 compiler_builtins = { version = "0.1.16" }
 profiler_builtins = { path = "../libprofiler_builtins", optional = true }
 unwind = { path = "../libunwind" }
-hashbrown = { version = "0.6.1", default-features = false, features = ['rustc-dep-of-std'] }
+hashbrown = { version = "0.6.2", default-features = false, features = ['rustc-dep-of-std'] }
 
 [dependencies.backtrace_rs]
 package = "backtrace"