update dependencies

Cargo.lock

@@ -47,9 +47,9 @@ dependencies = [
 
 [[package]]
 name = "cc"
-version = "1.0.58"
+version = "1.0.59"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f9a06fb2e53271d7c279ec1efea6ab691c35a2ae67ec0d91d7acec0caf13b518"
+checksum = "66120af515773fb005778dc07c261bd201ec8ce50bd6e7144c927753fe013381"
 
 [[package]]
 name = "cfg-if"
@@ -71,24 +71,25 @@ checksum = "e2abad23fbc42b3700f2f279844dc832adb2b2eb069b2df918f455c4e18cc646"
 
 [[package]]
 name = "libc"
-version = "0.2.74"
+version = "0.2.76"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a2f02823cf78b754822df5f7f268fb59822e7296276d3e069d8e8cb26a14bd10"
+checksum = "755456fae044e6fa1ebbbd1b3e902ae19e73097ed4ed87bb79934a867c007bc3"
 
 [[package]]
 name = "libloading"
-version = "0.6.2"
+version = "0.6.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2cadb8e769f070c45df05c78c7520eb4cd17061d4ab262e43cfc68b4d00ac71c"
+checksum = "2443d8f0478b16759158b2f66d525991a05491138bc05814ef52a250148ef4f9"
 dependencies = [
+ "cfg-if",
  "winapi",
 ]
 
 [[package]]
 name = "llvm-sys"
-version = "100.1.0"
+version = "100.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5545bf9a09267c644e4d0ac68f37ac200af6579ae2e82aebce382654eb4abab1"
+checksum = "9109e19fbfac3458f2970189719fa19f1007c6fd4e08c44fdebf4be0ddbe261d"
 dependencies = [
  "cc",
  "lazy_static",
@@ -193,9 +194,9 @@ checksum = "2f7909a1d8bc166a862124d84fdc11bda0ea4ed3157ccca662296919c2972db1"
 
 [[package]]
 name = "syn"
-version = "1.0.38"
+version = "1.0.39"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e69abc24912995b3038597a7a593be5053eb0fb44f3cc5beec0deb421790c1f4"
+checksum = "891d8d6567fe7c7f8835a3a98af4208f3846fba258c1bc3c31d6e506239f11f9"
 dependencies = [
  "proc-macro2",
  "quote",