feat/kcp (#580)

* support proxy tcp stream with kcp to improve experience of tcp over udp
* update rust version
* make subnet proxy route metrics lower in windows.

.github/workflows/install_rust.sh

@@ -8,20 +8,7 @@
 # dependencies are only needed on ubuntu as that's the only place where
 # we make cross-compilation
 if [[ $OS =~ ^ubuntu.*$ ]]; then
-    sudo apt-get update && sudo apt-get install -qq crossbuild-essential-arm64 crossbuild-essential-armhf musl-tools libappindicator3-dev
-    # for easytier-gui
-    if [[ $GUI_TARGET != '' && $GUI_TARGET =~ ^x86_64.*$ ]]; then
-        sudo apt install -qq libwebkit2gtk-4.1-dev \
-            build-essential \
-            curl \
-            wget \
-            file \
-            libgtk-3-dev \
-            librsvg2-dev \
-            libxdo-dev \
-            libssl-dev \
-            patchelf
-    fi
+    sudo apt-get update && sudo apt-get install -qq crossbuild-essential-arm64 crossbuild-essential-armhf musl-tools libappindicator3-dev llvm clang
     #  curl -s musl.cc | grep mipsel
     case $TARGET in
     mipsel-unknown-linux-musl)
@@ -52,13 +39,14 @@ if [[ $OS =~ ^ubuntu.*$ ]]; then
         wget -c https://musl.cc/${MUSL_URI}-cross.tgz -P ./musl_gcc/
         tar zxf ./musl_gcc/${MUSL_URI}-cross.tgz -C ./musl_gcc/
         sudo ln -s $(pwd)/musl_gcc/${MUSL_URI}-cross/bin/*gcc /usr/bin/
+        sudo ln -s $(pwd)/musl_gcc/${MUSL_URI}-cross/${MUSL_URI}/include/ /usr/include/musl-cross
     fi
 fi
 
 # see https://github.com/rust-lang/rustup/issues/3709
 rustup set auto-self-update disable
-rustup install 1.77
-rustup default 1.77
+rustup install 1.84
+rustup default 1.84
 
 # mips/mipsel cannot add target from rustup, need compile by ourselves
 if [[ $OS =~ ^ubuntu.*$ && $TARGET =~ ^mips.*$ ]]; then