Tests error with Golang 1.13 beta 1 #80

Testing    in: /builddir/build/BUILD/statik-0.1.6/_build/src
         PATH: /builddir/build/BUILD/statik-0.1.6/_build/bin:/usr/bin:/bin:/usr/sbin:/sbin:/usr/local/sbin
       GOPATH: /builddir/build/BUILD/statik-0.1.6/_build:/usr/share/gocode
  GO111MODULE: off
      command: go test -buildmode pie -compiler gc -ldflags "-X github.com/rakyll/statik/version=0.1.6 -extldflags '-Wl,-z,relro -Wl,--as-needed  -Wl,-z,now -specs=/usr/lib/rpm/redhat/redhat-hardened-ld '"
      testing: github.com/rakyll/statik
github.com/rakyll/statik/fs
--- FAIL: TestOpen (0.00s)
    --- FAIL: TestOpen/Files_should_retain_their_original_file_mode_and_modified_time (0.00s)
        fs_test.go:195: ModTime(/file.txt) = 2019-03-20 18:56:11 +0000 UTC; want 2019-03-20 18:56:10 +0000 UTC
    --- FAIL: TestOpen/Images_should_successfully_unpack (0.00s)
        fs_test.go:195: ModTime(/pixel.gif) = 2019-03-20 18:56:11 +0000 UTC; want 2019-03-20 18:56:10 +0000 UTC
    --- FAIL: TestOpen/'index.html'_files_should_be_returned_at_their_original_path_and_their_directory_path (0.00s)
        fs_test.go:195: ModTime(/index.html) = 2019-03-20 18:56:11 +0000 UTC; want 2019-03-20 18:56:10 +0000 UTC
        fs_test.go:195: ModTime(/sub_dir/index.html) = 2019-03-20 18:56:11 +0000 UTC; want 2019-03-20 18:56:10 +0000 UTC
    --- FAIL: TestOpen/listed_all_sub_directories_in_deep_directory (0.00s)
        fs_test.go:195: ModTime(/a) = 2019-03-20 18:56:11 +0000 UTC; want 2019-03-20 18:56:10 +0000 UTC
        fs_test.go:195: ModTime(/aa/bb/c) = 2019-03-20 18:56:11 +0000 UTC; want 2019-03-20 18:56:10 +0000 UTC
FAIL
exit status 1
FAIL	github.com/rakyll/statik/fs	0.011s