Add MSRV computed with cargo msrv

Cargo.toml

@@ -5,6 +5,7 @@ edition = "2021"
 description = "Restate SDK for Rust"
 license = "MIT"
 repository = "https://github.com/restatedev/sdk-rust"
+rust-version = "1.76.0"
 
 [features]
 default = ["http_server", "rand", "uuid"]

examples/failures.rs

@@ -16,7 +16,7 @@ struct MyError;
 impl FailureExample for FailureExampleImpl {
     async fn do_run(&self, context: Context<'_>) -> Result<(), TerminalError> {
         context
-            .run(|| async move {
+            .run::<_, _, ()>(|| async move {
                 if rand::thread_rng().next_u32() % 4 == 0 {
                     Err(TerminalError::new("Failed!!!"))?
                 }

rust-toolchain.toml

@@ -1,4 +1,4 @@
 [toolchain]
-channel = "1.80.1"
+channel = "1.81.0"
 profile = "minimal"
 components = ["rustfmt", "clippy"]

test-services/Dockerfile

@@ -1,4 +1,4 @@
-FROM rust:1.78
+FROM rust:1.81
 
 WORKDIR /app
 

test-services/src/failing.rs

@@ -72,7 +72,7 @@ impl Failing for FailingImpl {
         error_message: String,
     ) -> HandlerResult<()> {
         context
-            .run(|| async move { Err(TerminalError::new(error_message))? })
+            .run::<_, _, ()>(|| async move { Err(TerminalError::new(error_message))? })
             .await?;
 
         unreachable!("This should be unreachable")