build: update rust edition 2021

Cargo.lock

@@ -1485,7 +1485,6 @@ dependencies = [
  "grin_core",
  "grin_util",
  "grin_wallet_util",
- "log",
  "pretty_assertions",
  "rand 0.6.5",
  "serde",

Cargo.toml

@@ -9,7 +9,7 @@ keywords = [ "crypto", "grin", "mimblewimble" ]
 readme = "README.md"
 exclude = ["**/*.grin", "**/*.grin2"]
 build = "src/build/build.rs"
-edition = "2018"
+edition = "2021"
 
 [[bin]]
 name = "grin-wallet"

api/Cargo.toml

@@ -7,7 +7,7 @@ license = "Apache-2.0"
 repository = "https://github.com/mimblewimble/grin-wallet"
 keywords = [ "crypto", "grin", "mimblewimble" ]
 exclude = ["**/*.grin", "**/*.grin2"]
-edition = "2018"
+edition = "2021"
 
 [dependencies]
 log = "0.4"

config/Cargo.toml

@@ -7,7 +7,7 @@ license = "Apache-2.0"
 repository = "https://github.com/mimblewimble/grin-wallet"
 keywords = [ "crypto", "grin", "mimblewimble" ]
 workspace = ".."
-edition = "2018"
+edition = "2021"
 
 [dependencies]
 rand = "0.6"

controller/Cargo.toml

@@ -8,7 +8,7 @@ repository = "https://github.com/mimblewimble/grin-wallet"
 keywords = [ "crypto", "grin", "mimblewimble" ]
 exclude = ["**/*.grin", "**/*.grin2"]
 #build = "src/build/build.rs"
-edition = "2018"
+edition = "2021"
 
 [dependencies]
 futures = "0.3"

impls/Cargo.toml

@@ -7,7 +7,7 @@ license = "Apache-2.0"
 repository = "https://github.com/mimblewimble/grin-wallet"
 keywords = [ "crypto", "grin", "mimblewimble" ]
 exclude = ["**/*.grin", "**/*.grin2"]
-edition = "2018"
+edition = "2021"
 
 [dependencies]
 blake2-rfc = "0.2"

integration/Cargo.toml

@@ -7,7 +7,7 @@ license = "Apache-2.0"
 repository = "https://github.com/mimblewimble/grin"
 keywords = [ "crypto", "grin", "mimblewimble" ]
 workspace = ".."
-edition = "2018"
+edition = "2021"
 
 [dependencies]
 hyper = "0.12"

libwallet/Cargo.toml

@@ -8,7 +8,7 @@ repository = "https://github.com/mimblewimble/grin-wallet"
 keywords = [ "crypto", "grin", "mimblewimble" ]
 exclude = ["**/*.grin", "**/*.grin2"]
 #build = "src/build/build.rs"
-edition = "2018"
+edition = "2021"
 
 [dependencies]
 blake2-rfc = "0.2"

rustfmt.toml

@@ -1,2 +1,2 @@
 hard_tabs = true
-edition = "2018"
+edition = "2021"

util/Cargo.toml

@@ -7,7 +7,7 @@ license = "Apache-2.0"
 repository = "https://github.com/mimblewimble/grin-wallet"
 keywords = [ "crypto", "grin", "mimblewimble" ]
 workspace = ".."
-edition = "2018"
+edition = "2021"
 
 [dependencies]
 rand = "0.6"