tokio: bump MSRV to 1.63 (#5887)

Author: NobodyXu

.github/workflows/ci.yml

@@ -25,7 +25,7 @@ env:
   # - tokio-util/Cargo.toml
   # - tokio-test/Cargo.toml
   # - tokio-stream/Cargo.toml
-  rust_min: 1.56.0
+  rust_min: 1.63.0
 
 defaults:
   run:

README.md

@@ -187,12 +187,13 @@ When updating this, also update:
 
 Tokio will keep a rolling MSRV (minimum supported rust version) policy of **at
 least** 6 months. When increasing the MSRV, the new Rust version must have been
-released at least six months ago. The current MSRV is 1.56.0.
+released at least six months ago. The current MSRV is 1.63.
 
 Note that the MSRV is not increased automatically, and only as part of a minor
 release. The MSRV history for past minor releases can be found below:
 
- * 1.27 to now - Rust 1.56
+ * 1.30 to now - Rust 1.63
+ * 1.27 to 1.29 - Rust 1.56
  * 1.17 to 1.26 - Rust 1.49
  * 1.15 to 1.16 - Rust 1.46
  * 1.0 to 1.14 - Rust 1.45

tokio/Cargo.toml

@@ -8,7 +8,7 @@ name = "tokio"
 # - Create "v1.x.y" git tag.
 version = "1.29.1"
 edition = "2021"
-rust-version = "1.56"
+rust-version = "1.63"
 authors = ["Tokio Contributors <[email protected]>"]
 license = "MIT"
 readme = "README.md"
@@ -93,9 +93,6 @@ time = []
 # a few releases.
 stats = []
 
-[build-dependencies]
-autocfg = "1.1"
-
 [dependencies]
 tokio-macros = { version = "~2.1.0", path = "../tokio-macros", optional = true }
 
@@ -107,8 +104,8 @@ mio = { version = "0.8.6", optional = true, default-features = false }
 num_cpus = { version = "1.8.0", optional = true }
 parking_lot = { version = "0.12.0", optional = true }
 
-[target.'cfg(not(any(target_arch = "wasm32", target_arch = "wasm64")))'.dependencies]
-socket2 = { version = "0.4.9", optional = true, features = [ "all" ] }
+[target.'cfg(not(target_family = "wasm"))'.dependencies]
+socket2 = { version = "0.5.3", optional = true, features = [ "all" ] }
 
 # Currently unstable. The API exposed by these features may be broken at any time.
 # Requires `--cfg tokio_unstable` to enable.
@@ -146,14 +143,14 @@ futures = { version = "0.3.0", features = ["async-await"] }
 mockall = "0.11.1"
 async-stream = "0.3"
 
-[target.'cfg(not(any(target_arch = "wasm32", target_arch = "wasm64")))'.dev-dependencies]
-socket2 = "0.4.9"
+[target.'cfg(not(target_family = "wasm"))'.dev-dependencies]
+socket2 = "0.5.3"
 tempfile = "3.1.0"
 
-[target.'cfg(not(all(any(target_arch = "wasm32", target_arch = "wasm64"), target_os = "unknown")))'.dev-dependencies]
+[target.'cfg(not(all(target_family = "wasm", target_os = "unknown")))'.dev-dependencies]
 rand = "0.8.0"
 
-[target.'cfg(all(any(target_arch = "wasm32", target_arch = "wasm64"), not(target_os = "wasi")))'.dev-dependencies]
+[target.'cfg(all(target_family = "wasm", not(target_os = "wasi")))'.dev-dependencies]
 wasm-bindgen-test = "0.3.0"
 
 [target.'cfg(target_os = "freebsd")'.dev-dependencies]

tokio/README.md

@@ -187,12 +187,13 @@ When updating this, also update:
 
 Tokio will keep a rolling MSRV (minimum supported rust version) policy of **at
 least** 6 months. When increasing the MSRV, the new Rust version must have been
-released at least six months ago. The current MSRV is 1.56.0.
+released at least six months ago. The current MSRV is 1.63.
 
 Note that the MSRV is not increased automatically, and only as part of a minor
 release. The MSRV history for past minor releases can be found below:
 
- * 1.27 to now - Rust 1.56
+ * 1.30 to now - Rust 1.63
+ * 1.27 to 1.29 - Rust 1.56
  * 1.17 to 1.26 - Rust 1.49
  * 1.15 to 1.16 - Rust 1.46
  * 1.0 to 1.14 - Rust 1.45

tokio/build.rs

@@ -223,11 +223,11 @@ cfg_io_driver_impl! {
         pub use ready::Ready;
     }
 
-    #[cfg_attr(tokio_wasi, allow(unused_imports))]
+    #[cfg_attr(target_os = "wasi", allow(unused_imports))]
     mod poll_evented;
 
     #[cfg(not(loom))]
-    #[cfg_attr(tokio_wasi, allow(unused_imports))]
+    #[cfg_attr(target_os = "wasi", allow(unused_imports))]
     pub(crate) use poll_evented::PollEvented;
 }
 

tokio/src/io/mod.rs

@@ -456,26 +456,9 @@ compile_error! {
     "Tokio requires the platform pointer width to be 32, 64, or 128 bits"
 }
 
-// Ensure that our build script has correctly set cfg flags for wasm.
-//
-// Each condition is written all(a, not(b)). This should be read as
-// "if a, then we must also have b".
-#[cfg(any(
-    all(target_arch = "wasm32", not(tokio_wasm)),
-    all(target_arch = "wasm64", not(tokio_wasm)),
-    all(target_family = "wasm", not(tokio_wasm)),
-    all(target_os = "wasi", not(tokio_wasm)),
-    all(target_os = "wasi", not(tokio_wasi)),
-    all(target_os = "wasi", tokio_wasm_not_wasi),
-    all(tokio_wasm, not(any(target_arch = "wasm32", target_arch = "wasm64"))),
-    all(tokio_wasm_not_wasi, not(tokio_wasm)),
-    all(tokio_wasi, not(tokio_wasm))
-))]
-compile_error!("Tokio's build script has incorrectly detected wasm.");
-
 #[cfg(all(
     not(tokio_unstable),
-    tokio_wasm,
+    target_family = "wasm",
     any(
         feature = "fs",
         feature = "io-std",

tokio/src/lib.rs

@@ -85,7 +85,7 @@ macro_rules! cfg_fs {
     ($($item:item)*) => {
         $(
             #[cfg(feature = "fs")]
-            #[cfg(not(tokio_wasi))]
+            #[cfg(not(target_os = "wasi"))]
             #[cfg_attr(docsrs, doc(cfg(feature = "fs")))]
             $item
         )*
@@ -276,7 +276,7 @@ macro_rules! cfg_process {
             #[cfg(feature = "process")]
             #[cfg_attr(docsrs, doc(cfg(feature = "process")))]
             #[cfg(not(loom))]
-            #[cfg(not(tokio_wasi))]
+            #[cfg(not(target_os = "wasi"))]
             $item
         )*
     }
@@ -305,7 +305,7 @@ macro_rules! cfg_signal {
             #[cfg(feature = "signal")]
             #[cfg_attr(docsrs, doc(cfg(feature = "signal")))]
             #[cfg(not(loom))]
-            #[cfg(not(tokio_wasi))]
+            #[cfg(not(target_os = "wasi"))]
             $item
         )*
     }
@@ -372,7 +372,7 @@ macro_rules! cfg_not_rt {
 macro_rules! cfg_rt_multi_thread {
     ($($item:item)*) => {
         $(
-            #[cfg(all(feature = "rt-multi-thread", not(tokio_wasi)))]
+            #[cfg(all(feature = "rt-multi-thread", not(target_os = "wasi")))]
             #[cfg_attr(docsrs, doc(cfg(feature = "rt-multi-thread")))]
             $item
         )*
@@ -585,7 +585,7 @@ macro_rules! cfg_not_has_const_mutex_new {
 macro_rules! cfg_not_wasi {
     ($($item:item)*) => {
         $(
-            #[cfg(not(tokio_wasi))]
+            #[cfg(not(target_os = "wasi"))]
             $item
         )*
     }
@@ -594,7 +594,7 @@ macro_rules! cfg_not_wasi {
 macro_rules! cfg_is_wasm_not_wasi {
     ($($item:item)*) => {
         $(
-            #[cfg(tokio_wasm_not_wasi)]
+            #[cfg(all(target_family = "wasm", not(target_os = "wasi")))]
             $item
         )*
     }

tokio/src/macros/cfg.rs

@@ -281,7 +281,7 @@ impl TcpListener {
                 .map(|raw_socket| unsafe { std::net::TcpListener::from_raw_socket(raw_socket) })
         }
 
-        #[cfg(tokio_wasi)]
+        #[cfg(target_os = "wasi")]
         {
             use std::os::wasi::io::{FromRawFd, IntoRawFd};
             self.io
@@ -416,7 +416,7 @@ mod sys {
 }
 
 cfg_unstable! {
-    #[cfg(tokio_wasi)]
+    #[cfg(target_os = "wasi")]
     mod sys {
         use super::TcpListener;
         use std::os::wasi::prelude::*;