write(state.identityPath)
        }
        // Encode the build state using the contextualized IO service for the nested build
        state.projects.withMutableStateOfAllProjects {
            gradle.serviceOf<ConfigurationCacheIO>().writeIncludedBuildStateTo(
                stateFileFor(state.buildDefinition),
                buildTreeState
            )
        }
    }

        configurationTimeBarrier.cross()
    }

    private
    fun writeConfigurationCacheState(stateFile: ConfigurationCacheStateFile) =
        host.currentBuild.gradle.owner.projects.withMutableStateOfAllProjects {
            cacheIO.writeRootBuildStateTo(stateFile)
        }

    private
    fun writeConfigurationCacheFingerprint(layout: ConfigurationCacheRepository.Layout, reusedProjects: Set<Path>) {