fix: 锁定 virtio-drivers 版本，更新工具链

Signed-off-by: YdrMaster <ydrml@hotmail.com>

Author: YdrMaster

os6-ref/Cargo.toml

@@ -19,4 +19,4 @@ easy-fs = { path = "../easy-fs" }
 
 [profile.release]
 debug = true
-opt-level = 0
+opt-level = 0

os6/Cargo.toml

@@ -14,9 +14,9 @@ log = "0.4"
 riscv = { git = "https://github.com/rcore-os/riscv", features = ["inline-asm"] }
 lock_api = "=0.4.6"
 xmas-elf = "0.7.0"
-virtio-drivers = { git = "https://github.com/rcore-os/virtio-drivers" }
+virtio-drivers = { git = "https://github.com/rcore-os/virtio-drivers", rev = "93f821c" }
 easy-fs = { path = "../easy-fs" }
 
 [profile.release]
 debug = true
-opt-level = 0
+opt-level = 0

os7-ref/Cargo.toml

@@ -19,4 +19,4 @@ easy-fs = { path = "../easy-fs" }
 
 [profile.release]
 debug = true
-opt-level = 0
+opt-level = 0

os7/Cargo.toml

@@ -19,4 +19,4 @@ easy-fs = { path = "../easy-fs" }
 
 [profile.release]
 debug = true
-opt-level = 0
+opt-level = 0

os8-ref/Cargo.toml

@@ -20,4 +20,4 @@ easy-fs = { path = "../easy-fs" }
 [profile.release]
 debug = true
 opt-level = 0
-# opt-level = "s"
+# opt-level = "s"

os8/Cargo.toml

@@ -14,9 +14,9 @@ log = "0.4"
 riscv = { git = "https://github.com/rcore-os/riscv", features = ["inline-asm"] }
 lock_api = "=0.4.6"
 xmas-elf = "0.7.0"
-virtio-drivers = { git = "https://github.com/rcore-os/virtio-drivers" }
+virtio-drivers = { git = "https://github.com/rcore-os/virtio-drivers", rev = "93f821c" }
 easy-fs = { path = "../easy-fs" }
 
 [profile.release]
 debug = true
-opt-level = 0
+opt-level = 0

rust-toolchain.toml

@@ -1,5 +1,5 @@
 [toolchain]
 profile = "minimal"
-channel = "nightly-2022-08-05"
+channel = "nightly-2022-09-16"
 components = ["rust-src", "llvm-tools-preview", "rustfmt", "clippy"]
 targets = ["riscv64gc-unknown-none-elf"]