Update to 2021 edition

17 files changed, 11 insertions, 20 deletions

diff --git a/Cargo.toml b/Cargo.toml
index 173b396..3debfa0 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,5 +1,3 @@
-cargo-features = ["resolver"]
-
 [workspace]
 resolver = "2"
 members = [
diff --git a/examples/Cargo.toml b/examples/Cargo.toml
index 5494c70..468547f 100644
--- a/examples/Cargo.toml
+++ b/examples/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 authors = ["Dario Nieuwenhuis <dirbaio@dirbaio.net>"]
-edition = "2018"
+edition = "2021"
 name = "nrf-softdevice-examples"
 version = "0.1.0"
 
diff --git a/nrf-softdevice-defmt-rtt/Cargo.toml b/nrf-softdevice-defmt-rtt/Cargo.toml
index e847a72..df812b5 100644
--- a/nrf-softdevice-defmt-rtt/Cargo.toml
+++ b/nrf-softdevice-defmt-rtt/Cargo.toml
@@ -2,7 +2,7 @@
 authors = ["The Knurling-rs developers"]
 categories = ["embedded", "no-std"]
 description = "Transmit defmt log messages over the RTT (Real-Time Transfer) protocol"
-edition = "2018"
+edition = "2021"
 keywords = ["knurling", "defmt", "defmt-transport"]
 license = "MIT OR Apache-2.0"
 name = "nrf-softdevice-defmt-rtt"
diff --git a/nrf-softdevice-gen/Cargo.toml b/nrf-softdevice-gen/Cargo.toml
index e115dc4..ca12c89 100644
--- a/nrf-softdevice-gen/Cargo.toml
+++ b/nrf-softdevice-gen/Cargo.toml
@@ -2,7 +2,7 @@
 name = "nrf-softdevice-gen"
 version = "0.1.0"
 authors = ["Dario Nieuwenhuis <dirbaio@dirbaio.net>"]
-edition = "2018"
+edition = "2021"
 
 [dependencies]
 bindgen = "0.55.1"
diff --git a/nrf-softdevice-macro/Cargo.toml b/nrf-softdevice-macro/Cargo.toml
index 81bbba8..ec14850 100644
--- a/nrf-softdevice-macro/Cargo.toml
+++ b/nrf-softdevice-macro/Cargo.toml
@@ -2,7 +2,7 @@
 name = "nrf-softdevice-macro"
 version = "0.1.0"
 authors = ["Dario Nieuwenhuis <dirbaio@dirbaio.net>"]
-edition = "2018"
+edition = "2021"
 
 [dependencies]
 syn = { version = "1.0.39", features = ["full", "extra-traits"] }
diff --git a/nrf-softdevice-macro/src/lib.rs b/nrf-softdevice-macro/src/lib.rs
index cf324e1..f4bf13b 100644
--- a/nrf-softdevice-macro/src/lib.rs
+++ b/nrf-softdevice-macro/src/lib.rs
@@ -2,8 +2,6 @@
 
 extern crate proc_macro;
 
-use std::iter::FromIterator;
-
 use darling::FromMeta;
 use proc_macro::TokenStream;
 use proc_macro2::{Span, TokenStream as TokenStream2};
diff --git a/nrf-softdevice-mbr/Cargo.toml b/nrf-softdevice-mbr/Cargo.toml
index 40b6540..f628831 100644
--- a/nrf-softdevice-mbr/Cargo.toml
+++ b/nrf-softdevice-mbr/Cargo.toml
@@ -7,7 +7,7 @@ repository = "https://github.com/embassy-rs/nrf-softdevice"
 categories = ["embedded", "hardware-support", "no-std"]
 keywords = ["arm", "cortex-m", "nrf52", "nrf-softdevice"]
 license-file = "LICENSE-NORDIC"
-edition = "2018"
+edition = "2021"
 
 [package.metadata.docs.rs]
 targets = ["thumbv7em-none-eabihf"]
diff --git a/nrf-softdevice-s112/Cargo.toml b/nrf-softdevice-s112/Cargo.toml
index 59fbbb0..d33f5e7 100644
--- a/nrf-softdevice-s112/Cargo.toml
+++ b/nrf-softdevice-s112/Cargo.toml
@@ -7,7 +7,7 @@ repository = "https://github.com/embassy-rs/nrf-softdevice"
 categories = ["embedded", "hardware-support", "no-std"]
 keywords = ["cortex-m", "nrf52", "nrf-softdevice", "bluetooth", "ble"]
 license-file = "LICENSE-NORDIC"
-edition = "2018"
+edition = "2021"
 
 [package.metadata.docs.rs]
 targets = ["thumbv7em-none-eabihf"]
diff --git a/nrf-softdevice-s113/Cargo.toml b/nrf-softdevice-s113/Cargo.toml
index 23bbea3..37092f3 100644
--- a/nrf-softdevice-s113/Cargo.toml
+++ b/nrf-softdevice-s113/Cargo.toml
@@ -7,7 +7,7 @@ repository = "https://github.com/embassy-rs/nrf-softdevice"
 categories = ["embedded", "hardware-support", "no-std"]
 keywords = ["cortex-m", "nrf52", "nrf-softdevice", "bluetooth", "ble"]
 license-file = "LICENSE-NORDIC"
-edition = "2018"
+edition = "2021"
 
 [package.metadata.docs.rs]
 targets = ["thumbv7em-none-eabihf"]
diff --git a/nrf-softdevice-s122/Cargo.toml b/nrf-softdevice-s122/Cargo.toml
index eceecf4..834be57 100644
--- a/nrf-softdevice-s122/Cargo.toml
+++ b/nrf-softdevice-s122/Cargo.toml
@@ -7,7 +7,7 @@ repository = "https://github.com/embassy-rs/nrf-softdevice"
 categories = ["embedded", "hardware-support", "no-std"]
 keywords = ["cortex-m", "nrf52", "nrf-softdevice", "bluetooth", "ble"]
 license-file = "LICENSE-NORDIC"
-edition = "2018"
+edition = "2021"
 
 [package.metadata.docs.rs]
 targets = ["thumbv7em-none-eabihf"]
diff --git a/nrf-softdevice-s132/Cargo.toml b/nrf-softdevice-s132/Cargo.toml
index a634623..85e99f7 100644
--- a/nrf-softdevice-s132/Cargo.toml
+++ b/nrf-softdevice-s132/Cargo.toml
@@ -7,7 +7,7 @@ repository = "https://github.com/embassy-rs/nrf-softdevice"
 categories = ["embedded", "hardware-support", "no-std"]
 keywords = ["cortex-m", "nrf52", "nrf-softdevice", "bluetooth", "ble"]
 license-file = "LICENSE-NORDIC"
-edition = "2018"
+edition = "2021"
 
 [package.metadata.docs.rs]
 targets = ["thumbv7em-none-eabihf"]
diff --git a/nrf-softdevice-s140/Cargo.toml b/nrf-softdevice-s140/Cargo.toml
index 604dd6b..6a1bafc 100644
--- a/nrf-softdevice-s140/Cargo.toml
+++ b/nrf-softdevice-s140/Cargo.toml
@@ -7,7 +7,7 @@ repository = "https://github.com/embassy-rs/nrf-softdevice"
 categories = ["embedded", "hardware-support", "no-std"]
 keywords = ["cortex-m", "nrf52", "nrf-softdevice", "bluetooth", "ble"]
 license-file = "LICENSE-NORDIC"
-edition = "2018"
+edition = "2021"
 
 [package.metadata.docs.rs]
 targets = ["thumbv7em-none-eabihf"]
diff --git a/nrf-softdevice/Cargo.toml b/nrf-softdevice/Cargo.toml
index 71b73de..9b7df74 100644
--- a/nrf-softdevice/Cargo.toml
+++ b/nrf-softdevice/Cargo.toml
@@ -2,7 +2,7 @@
 name = "nrf-softdevice"
 version = "0.1.0"
 authors = ["Dario Nieuwenhuis <dirbaio@dirbaio.net>"]
-edition = "2018"
+edition = "2021"
 
 [features]
 
diff --git a/nrf-softdevice/src/ble/gatt_server/builder.rs b/nrf-softdevice/src/ble/gatt_server/builder.rs
index 4d40258..e439de9 100644
--- a/nrf-softdevice/src/ble/gatt_server/builder.rs
+++ b/nrf-softdevice/src/ble/gatt_server/builder.rs
@@ -1,6 +1,5 @@
 #![allow(dead_code)]
 
-use core::convert::TryInto;
 use core::marker::PhantomData;
 use core::mem;
 use core::ptr::null;
diff --git a/nrf-softdevice/src/ble/gatt_server/characteristic.rs b/nrf-softdevice/src/ble/gatt_server/characteristic.rs
index 6bc33c2..cdc44a1 100644
--- a/nrf-softdevice/src/ble/gatt_server/characteristic.rs
+++ b/nrf-softdevice/src/ble/gatt_server/characteristic.rs
@@ -1,5 +1,3 @@
-use core::convert::TryInto;
-
 use crate::ble::SecurityMode;
 use crate::raw;
 
diff --git a/nrf-softdevice/src/ble/gatt_traits.rs b/nrf-softdevice/src/ble/gatt_traits.rs
index 2b27f8f..c2969c8 100644
--- a/nrf-softdevice/src/ble/gatt_traits.rs
+++ b/nrf-softdevice/src/ble/gatt_traits.rs
@@ -1,4 +1,3 @@
-use core::convert::TryInto;
 use core::{mem, slice};
 
 use heapless::{String, Vec};
diff --git a/nrf-softdevice/src/events.rs b/nrf-softdevice/src/events.rs
index c9d4362..dd60c64 100644
--- a/nrf-softdevice/src/events.rs
+++ b/nrf-softdevice/src/events.rs
@@ -1,4 +1,3 @@
-use core::convert::TryFrom;
 use core::mem::MaybeUninit;
 use core::task::Poll;