bumb msrv to 1.56

Author: icewind1991

.github/workflows/rust.yml

@@ -159,7 +159,7 @@ jobs:
       - uses: actions-rs/toolchain@v1
         with:
           profile: minimal
-          toolchain: 1.55
+          toolchain: 1.56
           override: true
       - uses: Swatinem/rust-cache@v1
       - uses: actions-rs/cargo@v1

README.md

@@ -14,7 +14,7 @@ This repository contains two applications:
 | [cargo-espflash] | Cargo subcommand for espflash                               |
 | [espflash]       | Library and `espflash` binary (_without_ Cargo integration) |
 
-> **NOTE:** requires `rustc >= 1.55.0` in order to build either application
+> **NOTE:** requires `rustc >= 1.56.0` in order to build either application
 
 ## Installation
 

cargo-espflash/Cargo.toml

@@ -6,7 +6,7 @@ authors = [
     "Jesse Braham <[email protected]>",
 ]
 edition = "2018"
-rust-version = "1.55"
+rust-version = "1.56"
 description = "Cargo subcommand for flashing Espressif devices over serial"
 repository = "https://github.com/esp-rs/espflash"
 license = "GPL-2.0"

espflash/Cargo.toml

@@ -3,7 +3,7 @@ name = "espflash"
 version = "1.1.0"
 authors = ["Robin Appelman <[email protected]>"]
 edition = "2018"
-rust-version = "1.55"
+rust-version = "1.56"
 license = "GPL-2.0"
 description = "ESP8266 and ESP32 serial flasher"
 repository = "https://github.com/esp-rs/espflash"