Cgroupfs-mount not found under the folder build_dir

I am building the cgroupfs-mount and encounter the below error. Do you know what's the reason?
from the build procedure, it seems the build procedure not try to download the .tar.gz package.

make[2]: Entering directory '/tools/sdk/new-gcc-7.5.0/feeds/packages/utils/cgroupfs-mount'
touch -r /tools/sdk/new-gcc-7.5.0/build_dir/target-i386_pentium4_musl/cgroupfs-mount-1.4/.built /tools/sdk/new-gcc-7.5.0/build_dir/target-i386_pentium4_musl/cgroupfs-mount-1.4/.autoremove 2>/dev/null >/dev/null
make[2]: [Makefile:38: compile] Error 1 (ignored)
find /tools/sdk/new-gcc-7.5.0/build_dir/target-i386_pentium4_musl/cgroupfs-mount-1.4 -mindepth 1 -maxdepth 1 -not '(' -type f -and -name '.*' -and -size 0 ')' -and -not -name '.pkgdir' | xargs -r rm -rf
/tools/sdk/new-gcc-7.5.0/staging_dir/host/bin/find: '/tools/sdk/new-gcc-7.5.0/build_dir/target-i386_pentium4_musl/cgroupfs-mount-1.4': No such file or directory
make[2]: Leaving directory '/tools/sdk/new-gcc-7.5.0/feeds/packages/utils/cgroupfs-mount'
time: package/feeds/packages/cgroupfs-mount/compile#0.09#0.14#0.20

the Makefile is as below

build@99e7e7f4ec22:/tools/sdk/new-gcc-7.5.0$ cat ./package/feeds/packages/cgroupfs-mount/Makefile
include $(TOPDIR)/rules.mk

PKG_NAME:=cgroupfs-mount
PKG_VERSION:=1.4
PKG_RELEASE:=1

PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.gz
PKG_SOURCE_URL:=https://codeload.github.com/tianon/cgroupfs-mount/tar.gz/${PKG_VERSION}?
PKG_HASH:=d6c8aff7af59c7d0082ee3018c97f73b0421e81a49bb28ad9f66a36da5cd6ec7

PKG_MAINTAINER:=Gerard Ryan <G.M0N3Y.2503@gmail.com>

include $(INCLUDE_DIR)/package.mk

define Package/cgroupfs-mount
  SECTION:=utils
  CATEGORY:=Utilities
  TITLE:=cgroup mount scripts
  DEPENDS:=@KERNEL_CGROUPS +mount-utils
  MENU:=1
endef

define Package/cgroupfs-mount/description
Simple scripts to properly mount the cgroupfs hierarchy, especially structured for Debian packaging
endef

Build/Compile=# Nothing to compile, just install the scripts

define Package/cgroupfs-mount/install
        $(INSTALL_DIR) $(1)/usr/bin/
        $(INSTALL_BIN) $(PKG_BUILD_DIR)/cgroupfs-mount $(1)/usr/bin/
        $(INSTALL_BIN) $(PKG_BUILD_DIR)/cgroupfs-umount $(1)/usr/bin/

        $(INSTALL_DIR) $(1)/etc/init.d
        $(INSTALL_BIN) ./files/cgroupfs-mount.init $(1)/etc/init.d/cgroupfs-mount
endef

$(eval $(call BuildPackage,cgroupfs-mount))

I use the sdk openwrt-sdk-19.07.2-x86-generic_gcc-7.5.0_musl.Linux-x86_64.tar.xz
by default the packages https://git.openwrt.org/feed/packages.git^99efce0cd27adfcc53384fba93f37e5ee2e517de
has no docker-ce.
I update the git link to https://git.openwrt.org/feed/packages.git.
and I encounter the above issues during package building.
Is it possible to solve it?