Update examples lock file (#501)

examples/Cargo.lock

@@ -1,19 +1,19 @@
 # This file is automatically @generated by Cargo.
 # It is not intended for manual editing.
-version = 3
+version = 4
 
 [[package]]
 name = "autotools"
-version = "0.2.6"
+version = "0.2.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "aef8da1805e028a172334c3b680f93e71126f2327622faef2ec3d893c0a4ad77"
+checksum = "ef941527c41b0fc0dd48511a8154cd5fc7e29200a0ff8b7203c5d777dbc795cf"
 dependencies = [
  "cc",
 ]
 
 [[package]]
 name = "bdwgc-alloc"
-version = "0.6.7"
+version = "0.6.12"
 dependencies = [
  "autotools",
  "libc",
@@ -51,9 +51,9 @@ dependencies = [
 
 [[package]]
 name = "libc"
-version = "0.2.148"
+version = "0.2.178"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9cdc71e17332e86d2e1d38c1f99edcb6288ee11b815fb1a4b049eaa2114d369b"
+checksum = "37c93d8daa9d8a012fd8ab92f088405fb202ea0b6ab73ee2482ae66af4f42091"
 
 [[package]]
 name = "static_threads"
@@ -61,10 +61,3 @@ version = "0.1.0"
 dependencies = [
  "bdwgc-alloc",
 ]
-
-[[package]]
-name = "tagged_pointer"
-version = "0.1.0"
-dependencies = [
- "bdwgc-alloc",
-]