Update Rust toolchain to 2023-01-21

Update the toolchain and deps, and use the sparse registry access.

Signed-off-by: Tim Crawford <tcrawford@system76.com>

rust-toolchain.toml

@@ -1,3 +1,3 @@
 [toolchain]
-channel = "nightly-2022-03-18"
+channel = "nightly-2023-01-21"
 components = ["rust-src"]

tool/Cargo.lock

@@ -27,9 +27,9 @@ checksum = "bef38d45163c2f1dde094a7dfd33ccf595c92905c8f8f4fdc18d06fb1037718a"
 
 [[package]]
 name = "cc"
-version = "1.0.78"
+version = "1.0.79"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a20104e2335ce8a659d6dd92a51a767a0c062599c73b343fd152cb401e828c3d"
+checksum = "50d30906286121d95be3d479533b458f87493b30a4b5f79a607db8f5d11aa91f"
 
 [[package]]
 name = "clap"
@@ -100,9 +100,9 @@ dependencies = [
 
 [[package]]
 name = "libc"
-version = "0.2.138"
+version = "0.2.139"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "db6d7e329c562c5dfab7a46a2afabc8b987ab9a4834c9d1ca04dc54c1546cef8"
+checksum = "201de327520df007757c1f0adce6e827fe8562fbc28bfd9c15571c66ca1f5f79"
 
 [[package]]
 name = "os_str_bytes"
@@ -141,9 +141,9 @@ dependencies = [
 
 [[package]]
 name = "termcolor"
-version = "1.1.3"
+version = "1.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bab24d30b911b2376f3a13cc2cd443142f0c81dda04c118693e35b3835757755"
+checksum = "be55cf8942feac5c765c2c993422806843c9a9a45d4d5c407ad6dd2ea95eb9b6"
 dependencies = [
  "winapi-util",
 ]

tool/Cargo.toml

@@ -28,3 +28,6 @@ std = ["libc", "downcast-rs/std"]
 
 [package.metadata.docs.rs]
 all-features = true
+
+[registries.crates-io]
+protocol = "sparse"