cargo install cargo-tree 失败，提示“error: failed to run custom build command for `kernel32-sys v0.2.2`”

error: failed to run custom build command for `libssh2-sys v0.2.6`
process didn't exit successfully: `C:\Users\radix\AppData\Local\Temp\cargo-install.FV5LTR5nFsKM\release\build\libssh2-sys-86a416940bda1db0\build-script-build` (exit code: 101)
--- stdout
running: "cmake" "C:\\Users\\radix\\.cargo\\registry\\src\\github.com-1ecc6299db9ec823\\libssh2-sys-0.2.6\\libssh2" "-G" "Visual Studio 15 2017 Win64" "-DCRYPTO_BACKEND=WinCNG" "-DZLIB_INCLUDE_DIR=C:\\Users\\radix\\AppData\\Local\\Temp\\cargo-install.FV5LTR5nFsKM\\release\\build\\libz-sys-7f501f039badde83\\out/include" "-DBUILD_SHARED_LIBS=OFF" "-DENABLE_ZLIB_COMPRESSION=ON" "-DCMAKE_INSTALL_LIBDIR=lib" "-DBUILD_EXAMPLES=OFF" "-DBUILD_TESTING=OFF" "-DCMAKE_INSTALL_PREFIX=C:\\Users\\radix\\AppData\\Local\\Temp\\cargo-install.FV5LTR5nFsKM\\release\\build\\libssh2-sys-31d17d69d1151c6b\\out" "-DCMAKE_C_FLAGS= /nologo /MD" "-DCMAKE_C_FLAGS_RELEASE= /nologo /MD" "-DCMAKE_CXX_FLAGS= /nologo /MD" "-DCMAKE_CXX_FLAGS_RELEASE= /nologo /MD" "-DCMAKE_BUILD_TYPE=Release"

解决方案：

1.安装cmake，官网https://cmake.org/install/，安装完成，将bin目录（C:\Program Files\CMake\bin）添加至path；

2.将目录（ C:\Users\camer\.rustup\toolchains\nightly-x86_64-pc-windows-msvc\lib\rustlib\x86_64-pc-windows-msvc\lib）添加至path；

3.重启terminal，如cygwin等，然后在terminal中输入 which cmake，若输出 /cygdrive/c/Program Files/CMake/bin/cmake等字样，表示成功；若未找到cmake，则检查步骤1/2；

4.重新安装，terminal中输入 cargo install cargo-tree；提示如下字样，表示安装成功；

Finished release [optimized] target(s) in 7m 40s
  Installing C:\Users\24988\.cargo\bin\cargo-tree.exe

5.查看安装结果，terminal中输入 cargo install --list，若出现cargo-tree，表示安装成功；

➜  ~ cargo install --list
cargo-tree v0.20.0:
    cargo-tree.exe