Update cargo

Cargo.lock

@@ -295,7 +295,7 @@ checksum = "81a18687293a1546b67c246452202bbbf143d239cb43494cc163da14979082da"
 
 [[package]]
 name = "cargo"
-version = "0.49.0"
+version = "0.50.0"
 dependencies = [
  "anyhow",
  "atty",
@@ -306,7 +306,7 @@ dependencies = [
  "clap",
  "core-foundation",
  "crates-io",
- "crossbeam-utils 0.7.2",
+ "crossbeam-utils 0.8.0",
  "crypto-hash",
  "curl",
  "curl-sys",
@@ -676,6 +676,12 @@ dependencies = [
  "winapi 0.3.9",
 ]
 
+[[package]]
+name = "const_fn"
+version = "0.4.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ce90df4c658c62f12d78f7508cf92f9173e5184a539c10bfe54a3107b3ffd0f2"
+
 [[package]]
 name = "constant_time_eq"
 version = "0.1.5"
@@ -809,6 +815,18 @@ dependencies = [
  "lazy_static",
 ]
 
+[[package]]
+name = "crossbeam-utils"
+version = "0.8.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ec91540d98355f690a86367e566ecad2e9e579f230230eb7c21398372be73ea5"
+dependencies = [
+ "autocfg",
+ "cfg-if 1.0.0",
+ "const_fn",
+ "lazy_static",
+]
+
 [[package]]
 name = "crypto-hash"
 version = "0.3.4"
@@ -1255,9 +1273,9 @@ dependencies = [
 
 [[package]]
 name = "git2"
-version = "0.13.8"
+version = "0.13.12"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e6ac22e49b7d886b6802c66662b12609452248b1bc9e87d6d83ecea3db96f557"
+checksum = "ca6f1a0238d7f8f8fd5ee642f4ebac4dbc03e03d1f78fbe7a3ede35dcf7e2224"
 dependencies = [
  "bitflags",
  "libc",
@@ -1675,9 +1693,9 @@ dependencies = [
 
 [[package]]
 name = "libgit2-sys"
-version = "0.12.9+1.0.1"
+version = "0.12.14+1.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9b33bf3d9d4c45b48ae1ea7c334be69994624dc0a69f833d5d9f7605f24b552b"
+checksum = "8f25af58e6495f7caf2919d08f212de550cfa3ed2f5e744988938ea292b9f549"
 dependencies = [
  "cc",
  "libc",
@@ -1699,9 +1717,9 @@ dependencies = [
 
 [[package]]
 name = "libssh2-sys"
-version = "0.2.18"
+version = "0.2.19"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "eafa907407504b0e683786d4aba47acf250f114d37357d56608333fd167dd0fc"
+checksum = "ca46220853ba1c512fc82826d0834d87b06bcd3c2a42241b7de72f3d2fe17056"
 dependencies = [
  "cc",
  "libc",
@@ -5080,9 +5098,9 @@ dependencies = [
 
 [[package]]
 name = "toml"
-version = "0.5.6"
+version = "0.5.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ffc92d160b1eef40665be3a05630d003936a3bc7da7421277846c2613e92c71a"
+checksum = "75cf45bb0bef80604d001caaec0d09da99611b3c0fd39d3080468875cdb65645"
 dependencies = [
  "serde",
 ]