out

ok 1
SV = IV(0x7fdf878be840) at 0x7fdf878be850
  REFCNT = 1
  FLAGS = (PADMY,ROK)
  RV = 0x7fdf85a8c988
  SV = PVHV(0x7fdf878ad020) at 0x7fdf85a8c988
    REFCNT = 1
    FLAGS = (SHAREKEYS,HASKFLAGS)
    ARRAY = 0x7fdf83d7d530  (0:4, 1:4)
    hash quality = 137.5%
    KEYS = 4
    FILL = 4
    MAX = 7
    Elt "ns" [UTF8 "ns"] HASH = 0x882586a
    SV = PV(0x7fdf878d3800) at 0x7fdf85a8ca18
      REFCNT = 1
      FLAGS = (POK,pPOK,UTF8)
      PV = 0x7fdf83d514f0 "test.test_collection"\0 [UTF8 "test.test_collection"]
      CUR = 20
      LEN = 22
    Elt "key" [UTF8 "key"] HASH = 0xbe83d6b4
    SV = IV(0x7fdf85a8c9d8) at 0x7fdf85a8c9e8
      REFCNT = 1
      FLAGS = (ROK)
      RV = 0x7fdf85a8c9b8
      SV = PVHV(0x7fdf878ad040) at 0x7fdf85a8c9b8
        REFCNT = 1
        FLAGS = (SHAREKEYS,HASKFLAGS)
        ARRAY = 0x7fdf862b86e0  (0:7, 1:1)
        hash quality = 100.0%
        KEYS = 1
        FILL = 1
        MAX = 7
        Elt "x.y" [UTF8 "x.y"] HASH = 0x56c322f9
        SV = IV(0x7fdf85a8c9c0) at 0x7fdf85a8c9d0
          REFCNT = 1
          FLAGS = (IOK,pIOK)
          IV = 1
    Elt "name" [UTF8 "name"] HASH = 0xcb7b6dbd
    SV = PV(0x7fdf878d37f0) at 0x7fdf85a8ca00
      REFCNT = 1
      FLAGS = (POK,pPOK,UTF8)
      PV = 0x7fdf83d807c0 "foo"\0 [UTF8 "foo"]
      CUR = 3
      LEN = 10
ok 2
1..2
Attempt to free unreferenced scalar: SV 0x7fdf8419a870, Perl interpreter: 0x7fdf85000000 during global destruction.