digraph "ABI diff" {
  "0" [shape=rectangle, label="'interface'"]
  "1" [label="'struct n1::n2::n3::str n1::n2::n3::var_n' {_ZN2n12n22n35var_nE}"]
  "2" [color=red, shape=rectangle, label="'struct n1::n2::n3::str'"]
  "2" -> "2:0"
  "2:0" [color=red, label="byte size changed from 4 to 8"]
  "3" [label="'int x' → 'long x'"]
  "4" [color=red, label="'int' → 'long'"]
  "3" -> "4" [label=""]
  "2" -> "3" [label=""]
  "1" -> "2" [label=""]
  "0" -> "1" [label=""]
  "5" [label="'struct foo::str n1::n2::n3::var_foo' {_ZN2n12n22n37var_fooE}"]
  "6" [color=red, shape=rectangle, label="'struct foo::str'"]
  "6" -> "6:0"
  "6:0" [color=red, label="byte size changed from 4 to 8"]
  "7" [label="'int x' → 'long x'"]
  "7" -> "4" [label=""]
  "6" -> "7" [label=""]
  "5" -> "6" [label=""]
  "0" -> "5" [label=""]
  "8" [label="'struct foo::str n1::n2::var_foo' {_ZN2n12n27var_fooE}"]
  "8" -> "6" [label=""]
  "0" -> "8" [label=""]
  "9" [label="'struct foo::str n1::var_foo' {_ZN2n17var_fooE}"]
  "9" -> "6" [label=""]
  "0" -> "9" [label=""]
  "10" [label="'struct foo::str foo::var_foo' {_ZN3foo7var_fooE}"]
  "10" -> "6" [label=""]
  "0" -> "10" [label=""]
  "11" [label="'struct foo::str var_foo'"]
  "11" -> "6" [label=""]
  "0" -> "11" [label=""]
  "12" [label="'struct n1::n2::n3::str var_n'"]
  "12" -> "2" [label=""]
  "0" -> "12" [label=""]
}