Bazel_Toolchain issue while using for crosscompilation

[dommatib]

Description of the problem:
I'm using bazel_toolchain to cross compile the c++ code. while i configure the bazel workspace with bazel_toolchain repo, it fails to download.
Below is the Example:
Worspace file:
load("@bazel_tools//tools/build_defs/repo:git.bzl", "git_repository")

git_repository(

name = "bazel_toolchains",

commit = "6146252bda912a77a25c3b0ebe55ed0d00a1fa4d",

remote = "https://github.com/bazelbuild/bazel-toolchains.git",

)

load("@bazel_toolchains//:rbe_autoconfig.bzl", "rbe_autoconfig")

load("@bazel_toolchains//rules:envs.bzl", "bazel_toolchain")

bazel_toolchain(
name = "x86_64-linux",
exec_compatible_with = [
"@platforms//os:linux",
"@platforms//cpu:x86_64",
],
target_compatible_with = [
"@platforms//os:linux",
"@platforms//cpu:x86_64",
],
toolchain = ":cc-compiler-x86_64-linux",
toolchain_type = "@bazel_tools//tools/cpp:toolchain_type",
)

bazel_toolchain(
name = "x86_64-windows",
exec_compatible_with = [
"@platforms//os:linux",
"@platforms//cpu:x86_64",
],
target_compatible_with = [
"@platforms//os:windows",
"@platforms//cpu:x86_64",
],
toolchain = ":cc-compiler-x86_64-windows",
toolchain_type = "@bazel_tools//tools/cpp:toolchain_type",
)

cc_toolchain_config(
name = "cc-compiler-x86_64-linux",
cpu = "k8",
compiler = "gcc",
host_system_name = "x86_64-unknown-linux-gnu",
target_system_name = "x86_64-unknown-linux-gnu",
target_libc = "glibc_2.24",
)

cc_toolchain_config(
name = "cc-compiler-x86_64-windows",
cpu= "k8",
compiler = "msvc-cl",
host_system_name = "x86_64-unknown-linux-gnu",
target_system_name = "x86_64-unknown-windows",
target_libc = "msvcrt",
)

BUILD FILE:
load("@bazel_toolchains//rules:environments.bzl", "clang_env")

clang_env(
name = "linux-x86_64",
base_cc_toolchain_config = ":cc-compiler-x86_64-linux",
extra_toolchains = ["@bazel_toolchains//configs/ubuntu16_04_clang/x86_64_gcc:cc-toolchain-clang-x86_64-default"],
visibility = ["//visibility:public"],
)

clang_env(
name = "windows-x86_64",
base_cc_toolchain_config = ":cc-compiler-x86_64-windows",
extra_toolchains = ["@bazel_toolchains//configs/windows_clang:x86_64"],
visibility = ["//visibility:public"],
)

cc_library(
name = "hello_greet",
srcs = ["hello_greet.cc"],
hdrs = ["hello_greet.h"],
copts = ["-D__STDC_FORMAT_MACROS"],
)

cc_shared_library(
name = "hello_greet_shared",
deps = [":hello_greet"],
copts = ["-D__STDC_FORMAT_MACROS"],
)

cc_binary(
name = "hello_world_linux",
srcs = ["hello_world.cc"],
deps = [":hello_greet"],
dynamic_deps = [":hello_greet_shared"],
copts = ["-D__STDC_FORMAT_MACROS"],
toolchain = ":linux-x86_64",
)

cc_binary(
name = "hello_world_windows",
srcs = ["hello_world.cc"],
deps = [":hello_greet"],
dynamic_deps = [":hello_greet_shared"],
copts = ["-D__STDC_FORMAT_MACROS"],
toolchain = ":windows-x86_64",
)

bazel.rc file
build:windows --copt=-DWIN32
build:windows --cxxopt=-std=c++14

build:linux --copt=-DLINUX
build:linux --cxxopt=-std=c++14

build:windows --cpu=x64_windows
build:linux --cpu=x64_linux

build:windows --compilation_mode=dbg
build:windows --compilation_mode=opt

build:linux --compilation_mode=dbg
build:linux --compilation_mode=opt

build:dbg --copt=-g
build:dbg -c dbg
build:opt --copt=-O3
build:opt --copt=-DNDEBUG
build:opt -c opt

Translation units to Build:

hello_greet.h
#ifndef LIB_HELLO_GREET_H_
#define LIB_HELLO_GREET_H_

#include

std::string get_greet(const std::string &thing);

#endif

hello_greet.cc
#include "hello_greet.h"
#include

std::string get_greet(const std::string& world) {
return "Hello " + world;
}

hello_world.cc

#include "hello_greet.h"
#include
#include

int main(int argc, char** argv) {
std::cout << get_greet("world") << std::endl;
return 0;
}

I configured the WORKSPACE file with "bazel_toolchain" this should fetch the code from git repo and the build file is configured for cross compiled translation units (Linux & Windows) by loading bazel_toochains and clangenv is used to set for cross compilation for windows and linux.
However, the following error throws when building:

bazel build //main:hello_world_linux

ERROR: Error computing the main repository mapping: cannot load '@@bazel_toolchains//:rbe_autoconfig.bzl': no such file
The above error indicates that reb_autoconfig.bzl no such file exists since the git download didnt happen for the same though proper commit id is given.

Manually downloaded bazel_Toolchain but with this toolchain there is no reb_autoconfig.bzl is present and looks deprecated or removed.

Bazel version used: bazel version 7.0.0
Debain version used: Debian GNU/Linux rodete

Let me know if you need any more information