cargo update -p parking_lot -p parking_lot_core

Changelog: https://github.com/Amanieu/parking_lot/blob/master/CHANGELOG.md#parking_lot_core-083-2021-02-12
The full log:
```
Removing cloudabi v0.1.0
Updating parking_lot v0.11.0 -> v0.11.1
Updating parking_lot_core v0.8.0 -> v0.8.3
```

Cargo.lock

@@ -613,15 +613,6 @@ dependencies = [
  "unicode-normalization",
 ]
 
-[[package]]
-name = "cloudabi"
-version = "0.1.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4344512281c643ae7638bbabc3af17a11307803ec8f0fcad9fae512a8bf36467"
-dependencies = [
- "bitflags",
-]
-
 [[package]]
 name = "cmake"
 version = "0.1.44"
@@ -2492,9 +2483,9 @@ dependencies = [
 
 [[package]]
 name = "parking_lot"
-version = "0.11.0"
+version = "0.11.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a4893845fa2ca272e647da5d0e46660a314ead9c2fdd9a883aabc32e481a8733"
+checksum = "6d7744ac029df22dca6284efe4e898991d28e3085c706c972bcd7da4a27a15eb"
 dependencies = [
  "instant",
  "lock_api",
@@ -2503,15 +2494,14 @@ dependencies = [
 
 [[package]]
 name = "parking_lot_core"
-version = "0.8.0"
+version = "0.8.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c361aa727dd08437f2f1447be8b59a33b0edd15e0fcee698f935613d9efbca9b"
+checksum = "fa7a782938e745763fe6907fc6ba86946d72f49fe7e21de074e08128a99fb018"
 dependencies = [
- "cfg-if 0.1.10",
- "cloudabi",
+ "cfg-if 1.0.0",
  "instant",
  "libc",
- "redox_syscall 0.1.57",
+ "redox_syscall 0.2.5",
  "smallvec 1.6.1",
  "winapi 0.3.9",
 ]

src/tools/tidy/src/deps.rs

@@ -32,7 +32,6 @@ const EXCEPTIONS: &[(&str, &str)] = &[
     ("fuchsia-zircon", "BSD-3-Clause"), // rustdoc, rustc, cargo (jobserver & tempdir)
     ("colored", "MPL-2.0"),             // rustfmt
     ("ordslice", "Apache-2.0"),         // rls
-    ("cloudabi", "BSD-2-Clause"),       // (rls -> crossbeam-channel 0.2 -> rand 0.5)
     ("ryu", "Apache-2.0 OR BSL-1.0"),   // rls/cargo/... (because of serde)
     ("bytesize", "Apache-2.0"),         // cargo
     ("im-rc", "MPL-2.0+"),              // cargo
@@ -76,7 +75,6 @@ const PERMITTED_DEPENDENCIES: &[&str] = &[
     "cfg-if",
     "chalk-derive",
     "chalk-ir",
-    "cloudabi",
     "cmake",
     "compiler_builtins",
     "cpuid-bool",