Update remaining crates to edition 2021.

MSRV needs to move to 1.68 for this to work since there are deps that depend on
that version.

Author: wt

cortex-m-rt/Cargo.toml

@@ -16,7 +16,7 @@ version = "0.7.5"
 autoexamples = true
 links = "cortex-m-rt" # Prevent multiple versions of cortex-m-rt being linked
 edition = "2021"
-rust-version = "1.61"
+rust-version = "1.68"
 
 [dependencies]
 cortex-m-rt-macros = { path = "macros", version = "=0.7.5" }

cortex-m/Cargo.toml

@@ -11,10 +11,10 @@ license = "MIT OR Apache-2.0"
 name = "cortex-m"
 readme = "README.md"
 repository = "https://github.com/rust-embedded/cortex-m"
-version = "0.7.7"
-edition = "2018"
+version = "0.7.8"
+edition = "2021"
 links = "cortex-m"  # prevent multiple versions of this crate to be linked together
-rust-version = "1.61"
+rust-version = "1.68"
 
 [dependencies]
 bare-metal = { version = "0.2.4", features = ["const-fn"] }

panic-itm/Cargo.toml

@@ -10,8 +10,8 @@ keywords = ["panic-impl", "panic-handler", "ITM", "ARM", "Cortex-M"]
 license = "MIT OR Apache-2.0"
 name = "panic-itm"
 repository = "https://github.com/rust-embedded/cortex-m"
-version = "0.4.2"
-edition = "2018"
+version = "0.4.3"
+edition = "2021"
 
 [dependencies]
 cortex-m = { path = "../cortex-m", version = ">= 0.5.8, < 0.8" }

testsuite/Cargo.toml

@@ -2,8 +2,8 @@
 authors = ["The Cortex-M Team <cortex-m@teams.rust-embedded.org>"]
 name = "testsuite"
 publish = false
-edition = "2018"
-version = "0.1.0"
+edition = "2021"
+version = "0.1.1"
 
 [features]
 rtt = ["rtt-target", "minitest/rtt"]

xtask/Cargo.toml

@@ -1,8 +1,8 @@
 [package]
 name = "xtask"
-version = "0.0.0"
+version = "0.0.1"
 authors = ["The Cortex-M Team <cortex-m@teams.rust-embedded.org>"]
-edition = "2018"
+edition = "2021"
 publish = false
 
 [[test]]