Switch to 2021 edition.

Author: lyuts

Cargo.toml

@@ -1,4 +1,6 @@
 [workspace]
+resolver = "2"
+
 members = [
     "finny/",
     "finny_derive/",
@@ -7,4 +9,4 @@ members = [
 
 exclude = [
     "finny_nostd_tests/"
-]
+]

finny/Cargo.toml

@@ -2,7 +2,7 @@
 name = "finny"
 version = "0.2.0"
 authors = ["Rudi Benkovic <rudi.benkovic@gmail.com>"]
-edition = "2018"
+edition = "2021"
 repository = "https://github.com/hashmismatch/finny.rs"
 description = "Finite State Machines with a procedural builder-style API and compile time transition checks."
 license = "MIT OR Apache-2.0"
@@ -22,4 +22,4 @@ default = ["std", "inspect_slog", "timers_std"]
 std = ["arraydeque/std", "timers_std", "slog/std", "finny_derive/std"]
 inspect_slog = ["slog"]
 timers_std = []
-generate_plantuml = ["finny_derive/generate_plantuml"]
+generate_plantuml = ["finny_derive/generate_plantuml"]

finny_derive/Cargo.toml

@@ -2,7 +2,7 @@
 name = "finny_derive"
 version = "0.2.0"
 authors = ["Rudi Benkovic <rudi.benkovic@gmail.com>"]
-edition = "2018"
+edition = "2021"
 repository = "https://github.com/hashmismatch/finny.rs"
 description = "Procedural macros crate for the main finite state machine crate, finny."
 license = "MIT OR Apache-2.0"
@@ -22,4 +22,4 @@ syn =  { version = "1.0", features = ["full", "extra-traits", "visit"] }
 proc-macro2 = "1.0"
 petgraph = "0.5"
 serde = { version = "1.0", features = ["derive"] }
-serde_json = "1.0"
+serde_json = "1.0"

finny_nostd_tests/Cargo.toml

@@ -2,7 +2,7 @@
 name = "finny_nostd_tests"
 version = "0.1.0"
 authors = ["Rudi Benkovic <rudi.benkovic@gmail.com>"]
-edition = "2018"
+edition = "2021"
 publish = false
 
 [dependencies]

finny_tests/Cargo.toml

@@ -3,7 +3,7 @@ name = "finny_tests"
 version = "0.1.0"
 authors = ["Rudi Benkovic <rudi.benkovic@gmail.com>"]
 publish = false
-edition = "2018"
+edition = "2021"
 
 [dependencies]
 finny = { path = "../finny/" }