load(":channel.bzl", "rust_toolchain_channel_flag") rust_toolchain_channel_flag( name = "channel", build_setting_default = "stable", visibility = ["//visibility:public"], ) config_setting( name = "beta", flag_values = { ":channel": "beta", }, visibility = ["//visibility:public"], ) config_setting( name = "nightly", flag_values = { ":channel": "nightly", }, visibility = ["//visibility:public"], ) config_setting( name = "stable", flag_values = { ":channel": "stable", }, visibility = ["//visibility:public"], )