Bump MSRV to 1.61.0

This is required by `image` crate.

Also update current Rust version to 1.65.0.

.github/workflows/ci.yml

@@ -77,19 +77,19 @@ jobs:
         include:
           # Currently used Rust version, same as in `rust-toolchain` file.
           - os: ubuntu-latest
-            rust: 1.61.0
+            rust: 1.65.0
             python: 3.9
           - os: windows-latest
-            rust: 1.61.0
+            rust: 1.65.0
             python: false # Python bindings compilation on Windows is not supported.
 
-          # Minimum Supported Rust Version = 1.57.0
+          # Minimum Supported Rust Version = 1.61.0
           #
           # Minimum Supported Python Version = 3.7
           # This is the minimum version for which manylinux Python wheels are
           # built.
           - os: ubuntu-latest
-            rust: 1.57.0
+            rust: 1.61.0
             python: 3.7
     runs-on: ${{ matrix.os }}
     steps:

Cargo.toml

@@ -4,7 +4,7 @@ version = "1.102.0"
 authors = ["Delta Chat Developers (ML) <delta@codespeak.net>"]
 edition = "2021"
 license = "MPL-2.0"
-rust-version = "1.57"
+rust-version = "1.61"
 
 [profile.dev]
 debug = 0

rust-toolchain

@@ -1 +1 @@
-1.61.0
+1.65.0

scripts/coredeps/install-rust.sh

@@ -7,7 +7,7 @@ set -euo pipefail
 #
 # Avoid using rustup here as it depends on reading /proc/self/exe and
 # has problems running under QEMU.
-RUST_VERSION=1.61.0
+RUST_VERSION=1.65.0
 
 ARCH="$(uname -m)"
 test -f "/lib/libc.musl-$ARCH.so.1" && LIBC=musl || LIBC=gnu