Compiling embassy-executor v0.3.2
   Compiling os v0.1.0 (/home/lighk/RustroverProjects/rCore-Tutorial-v3/os)
error[E0432]: unresolved import `embassy_executor::Executor`
  --> src/main.rs:16:24
   |
16 | use embassy_executor::{Executor, SendSpawner};
   |                        ^^^^^^^^ no `Executor` in the root
   |
   = help: consider importing this struct instead:
           embassy_executor::raw::Executor

error: linking with `rust-lld` failed: exit status: 1
  |
  = note: LC_ALL="C" PATH="/home/yangkh/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/bin:/home/yangkh/.local"
  = note: rust-lld: error: undefined symbol: _critical_section_1_0_release
          >>> referenced by arceos_async.82669b9a389f8ff1-cgu.0
          >>>               /home/yangkh/RustroverProjects/arceos/target/riscv64gc-unknown-none-elf/release/deps/arceos_async-de373d6f5f643521.arceos_as)
          >>> referenced by arceos_async.82669b9a389f8ff1-cgu.0
          >>>               /home/yangkh/RustroverProjects/arceos/target/riscv64gc-unknown-none-elf/release/deps/arceos_async-de373d6f5f643521.arceos_as)
          
          rust-lld: error: undefined symbol: _critical_section_1_0_acquire
          >>> referenced by arceos_async.82669b9a389f8ff1-cgu.0
          >>>               /home/yangkh/RustroverProjects/arceos/target/riscv64gc-unknown-none-elf/release/deps/arceos_async-de373d6f5f643521.arceos_as)
          

warning: `arceos-async` (bin "arceos-async") generated 1 warning
error: could not compile `arceos-async` (bin "arceos-async") due to previous error; 1 warning emitted
make: *** [scripts/make/build.mk:36: _cargo_build] Error 101

error[E0658]: `impl Trait` in type aliases is unstable
  --> src/main.rs:81:1
   |
81 | #[embassy_executor::task]
   | ^^^^^^^^^^^^^^^^^^^^^^^^^
   |
   = note: see issue #63063 <https://github.com/rust-lang/rust/issues/63063> for more information
   = help: add `#![feature(type_alias_impl_trait)]` to the crate attributes to enable
   = note: this error originates in the attribute macro `embassy_executor::task` (in Nightly builds, run with -Z macro-backtrace for more info)