Bump the MSRV from 1.69 to 1.70

.github/cross-linux-riscv64/Dockerfile

@@ -28,7 +28,7 @@ RUN apt-get update  && \
 # install rust tools
 RUN curl --proto "=https" --tlsv1.2 --retry 3 -sSfL https://sh.rustup.rs | sh -s -- -y
 ENV PATH="/root/.cargo/bin:${PATH}"
-RUN rustup -v toolchain install 1.69
+RUN rustup -v toolchain install 1.70
 # add docker the manual way
 COPY install_docker.sh /
 RUN /install_docker.sh
@@ -61,7 +61,7 @@ ENV CARGO_TARGET_RISCV64GC_UNKNOWN_LINUX_GNU_LINKER="$CROSS_TOOLCHAIN_PREFIX"gcc
     RUST_TEST_THREADS=1 \
     PKG_CONFIG_PATH="/usr/lib/riscv64-linux-gnu/pkgconfig/:${PKG_CONFIG_PATH}"
 
-RUN rustup target add riscv64gc-unknown-linux-gnu --toolchain 1.69-x86_64-unknown-linux-gnu
+RUN rustup target add riscv64gc-unknown-linux-gnu --toolchain 1.70-x86_64-unknown-linux-gnu
 
 #compile libssl-dev for riscv64!
 COPY build_openssl.sh /

.github/workflows/benchmark.yaml

@@ -7,7 +7,7 @@ on:
 
 env:
   CARGO_REGISTRIES_CRATES_IO_PROTOCOL: git
-  MSRV: "1.67"
+  MSRV: "1.70"
 
 jobs:
   run_benchmark:

.github/workflows/build.yml

@@ -3,7 +3,7 @@ name: Builds
 env:
   RUST_BACKTRACE: 1
   CARGO_REGISTRIES_CRATES_IO_PROTOCOL: git
-  MSRV: "1.69"
+  MSRV: "1.70"
 
 on:
   push:

.github/workflows/cloudcompiler.yaml

@@ -2,7 +2,7 @@ name: Release cloudcompiler.wasm
 
 env:
   RUST_BACKTRACE: 1
-  MSRV: "1.67"
+  MSRV: "1.70"
 
 on:
   push:

.github/workflows/documentation.yaml

@@ -7,6 +7,9 @@ on:
     paths:
       - 'lib/**'
 
+env:
+  MSRV: "1.70"
+
 jobs:
   documentation:
     name: Documentation
@@ -16,7 +19,7 @@ jobs:
       - name: Install Rust
         uses: dtolnay/rust-toolchain@stable
         with:
-          toolchain: 1.67
+          toolchain: ${{ env.MSRV }}
       - name: Install LLVM
         shell: bash
         run: |

.github/workflows/test.yaml

@@ -24,7 +24,7 @@ env:
   # Rust, but it's not stable on 1.69 yet. By explicitly setting the protocol we
   # can override that behaviour
   CARGO_REGISTRIES_CRATES_IO_PROTOCOL: git
-  MSRV: "1.69"
+  MSRV: "1.70"
 
 jobs:
 

Cargo.toml

@@ -80,7 +80,7 @@ edition = "2021"
 homepage = "https://wasmer.io/"
 license = "MIT"
 repository = "https://github.com/wasmerio/wasmer"
-rust-version = "1.67"
+rust-version = "1.70"
 version = "4.2.0"
 
 [workspace.dependencies]

lib/api/src/mem_access.rs

@@ -265,12 +265,9 @@ impl<'a, T: ValueType> WasmSlice<'a, T> {
             self.len,
             "slice length doesn't match WasmSlice length"
         );
-        let bytes = unsafe {
-            slice::from_raw_parts_mut(
-                buf.as_mut_ptr() as *mut MaybeUninit<u8>,
-                buf.len() * mem::size_of::<T>(),
-            )
-        };
+        let size = std::mem::size_of_val(buf);
+        let bytes =
+            unsafe { slice::from_raw_parts_mut(buf.as_mut_ptr() as *mut MaybeUninit<u8>, size) };
         self.buffer.read_uninit(self.offset, bytes)?;
         Ok(())
     }
@@ -310,9 +307,8 @@ impl<'a, T: ValueType> WasmSlice<'a, T> {
             self.len,
             "slice length doesn't match WasmSlice length"
         );
-        let bytes = unsafe {
-            slice::from_raw_parts(data.as_ptr() as *const u8, data.len() * mem::size_of::<T>())
-        };
+        let size = std::mem::size_of_val(data);
+        let bytes = unsafe { slice::from_raw_parts(data.as_ptr() as *const u8, size) };
         self.buffer.write(self.offset, bytes)
     }
 

lib/virtual-fs/src/arc_box_file.rs

@@ -115,7 +115,7 @@ impl VirtualFile for ArcBoxFile {
         let mut inner = self.inner.lock().unwrap();
         let fut = inner.unlink();
         drop(inner);
-        Box::pin(async { fut.await })
+        Box::pin(fut)
     }
     fn is_open(&self) -> bool {
         let inner = self.inner.lock().unwrap();

lib/virtual-fs/src/arc_file.rs

@@ -131,7 +131,7 @@ where
         let mut inner = self.inner.lock().unwrap();
         let fut = inner.unlink();
         drop(inner);
-        Box::pin(async move { fut.await })
+        Box::pin(fut)
     }
     fn is_open(&self) -> bool {
         let inner = self.inner.lock().unwrap();

lib/virtual-fs/src/combine_file.rs

@@ -42,8 +42,7 @@ impl VirtualFile for CombineFile {
     }
 
     fn unlink(&mut self) -> BoxFuture<'static, Result<()>> {
-        let fut = self.tx.unlink();
-        Box::pin(async { fut.await })
+        Box::pin(self.tx.unlink())
     }
 
     fn poll_read_ready(mut self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<io::Result<usize>> {

lib/virtual-fs/src/dual_write_file.rs

@@ -50,8 +50,7 @@ impl VirtualFile for DualWriteFile {
     }
 
     fn unlink(&mut self) -> BoxFuture<'static, Result<()>> {
-        let fut = self.inner.unlink();
-        Box::pin(async { fut.await })
+        Box::pin(self.inner.unlink())
     }
 
     fn poll_read_ready(mut self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<io::Result<usize>> {

lib/virtual-fs/src/trace_fs.rs

@@ -130,8 +130,7 @@ impl VirtualFile for TraceFile {
     }
 
     fn unlink(&mut self) -> BoxFuture<'static, crate::Result<()>> {
-        let fut = self.file.unlink();
-        Box::pin(async move { fut.await })
+        Box::pin(self.file.unlink())
     }
 
     #[tracing::instrument(level = "trace", skip_all, fields(path=%self.path.display()))]

lib/wasi-web/Cargo.toml

@@ -10,7 +10,7 @@ keywords = [ "wasm", "browser", "terminal" ]
 repository = "https://github.com/wasmerio/wasmer"
 readme = "../README.md"
 homepage = "https://wasmer.io/"
-rust-version = "1.67"
+rust-version = "1.70"
 
 # This crate is in its own workspace because it gets compiled to WebAssembly
 [workspace]

rust-toolchain

@@ -1 +1 @@
-1.69
+1.70

tests/integration/cli/tests/msrv.rs

@@ -0,0 +1,119 @@
+//! Integration tests which makes sure various parts of the project (CI,
+//! Dockerfiles, etc.) are all using the Rust version specified in `/Cargo.toml`.
+
+use std::path::Path;
+
+use once_cell::sync::Lazy;
+use regex::Regex;
+
+static MSRV: Lazy<String> = Lazy::new(|| {
+    let cargo_toml = project_root().join("Cargo.toml");
+    let contents = std::fs::read_to_string(cargo_toml).unwrap();
+    let rust_version_line = contents
+        .lines()
+        .find(|line| line.contains("rust-version") && line.contains('"'))
+        .unwrap();
+    let pieces: Vec<_> = rust_version_line.split('"').collect();
+    let [_, msrv, _] = pieces.as_slice() else {
+        panic!();
+    };
+
+    msrv.to_string()
+});
+
+#[test]
+fn docker_file_is_up_to_date() {
+    let pattern = Regex::new(r"1\.\d\d").unwrap();
+    let dockerfile = project_root()
+        .join(".github")
+        .join("cross-linux-riscv64")
+        .join("Dockerfile");
+
+    let contents = std::fs::read_to_string(&dockerfile).unwrap();
+    let expected = pattern.replace_all(&contents, MSRV.as_str());
+
+    ensure_file_contents(dockerfile, expected);
+}
+
+#[test]
+fn rust_toolchain_file_is_up_to_date() {
+    let pattern = Regex::new(r"1\.\d\d").unwrap();
+    let rust_toolchain = project_root().join("rust-toolchain");
+
+    let contents = std::fs::read_to_string(&rust_toolchain).unwrap();
+    let expected = pattern.replace_all(&contents, MSRV.as_str());
+
+    ensure_file_contents(rust_toolchain, expected);
+}
+
+#[test]
+fn wasi_web_is_up_to_date() {
+    let pattern = Regex::new(r#"rust-version\s*=\s*"\d\.\d\d""#).unwrap();
+    let rust_toolchain = project_root()
+        .join("lib")
+        .join("wasi-web")
+        .join("Cargo.toml");
+
+    let replacement = format!("rust-version = \"{}\"", MSRV.as_str());
+    let contents = std::fs::read_to_string(&rust_toolchain).unwrap();
+    let expected = pattern.replace_all(&contents, replacement);
+
+    ensure_file_contents(rust_toolchain, expected);
+}
+
+#[test]
+fn ci_files_are_up_to_date() {
+    let pattern = Regex::new(r#"MSRV:\s*"\d+\.\d+""#).unwrap();
+    let replacement = format!("MSRV: \"{}\"", MSRV.as_str());
+    let workflows = project_root().join(".github").join("workflows");
+
+    for result in workflows.read_dir().unwrap() {
+        let path = result.unwrap().path();
+
+        let contents = std::fs::read_to_string(&path).unwrap();
+        let expected = pattern.replace_all(&contents, &replacement);
+
+        ensure_file_contents(path, expected);
+    }
+}
+
+/// Get the root directory for this repository.
+fn project_root() -> &'static Path {
+    Path::new(env!("CARGO_MANIFEST_DIR"))
+        .ancestors()
+        .find(|dir| dir.join(".git").exists())
+        .unwrap()
+}
+
+/// Check that a particular file has the desired contents.
+///
+/// If the file is missing or outdated, this function will update the file and
+/// trigger a panic to fail any test this is called from.
+fn ensure_file_contents(path: impl AsRef<Path>, contents: impl AsRef<str>) {
+    let path = path.as_ref();
+    let contents = contents.as_ref();
+
+    if let Ok(old_contents) = std::fs::read_to_string(path) {
+        if contents == old_contents {
+            // File is already up to date
+            return;
+        }
+    }
+
+    let display_path = path.strip_prefix(project_root()).unwrap_or(path);
+
+    eprintln!("{} was not up-to-date, updating...", display_path.display());
+
+    if std::env::var("CI").is_ok() {
+        eprintln!("Note: run `cargo test` locally and commit the updated files");
+    }
+
+    if let Some(parent) = path.parent() {
+        let _ = std::fs::create_dir_all(parent);
+    }
+    std::fs::write(&path, contents).unwrap();
+    panic!(
+        "\"{}\" was not up to date and has been updated. Please commit the changes and re-run the tests.",
+        path.strip_prefix(project_root()).unwrap_or(path).display()
+    );
+}