The file that makes rustc have an "unexpected failure" and the resulting log.

fingertree.rs

enum FingerTree<A> { Empty
                   , Single(A)
                   , Deep (Digit<A>, @FingerTree<Node<A>>, Digit<A>)
                   }

enum Node<A> { Node2(A,A), Node3(A,A,A) }
enum Digit<A> { One(A)
              , Two(A,A)
              , Three(A,A,A)
              , Four(A,A,A,A)
              }

fn prepend<A:Copy>(self:@FingerTree<A>, a: A) -> @FingerTree<A> {
  let x = match *self {
    Empty => Single(a)
  , Single(x) => Deep(One(a),@Empty,One(x))
  , Deep(One(b),m,sf) => Deep(Two(a,b),m,sf)
  , Deep(Two(b,c),m,sf) => Deep(Three(a,b,c),m,sf)
  , Deep(Three(b,c,d),m,sf) => Deep(Four(a,b,c,d),m,sf)
  , Deep(Four(b,c,d,e),m,sf) => {
      let m2:@FingerTree<Node<A>> = prepend(m,Node3(c,d,e));
      Deep(Two(a,b),m2,sf)
    }
  };
  @x
}


enum List<A> {
    Nil
  , Cons(A,@List<A>)
}

fn list_prepend<A:Copy>(self:@List<A>, a:A) -> @List<A>{
  let x = match *self {
    Nil => Cons(a,@Nil)
  , Cons(b,t) => {
      let t2:@List<A> = list_prepend(t,b); 
      Cons(a,t2)
    }
  };
  @x
}

fn main() {
  io::println("Hello, World");
}

log.txt

rust: task b4d04920 ran out of stack
/usr/local/bin/../lib/librustrt.so(_ZN9rust_task13begin_failureEPKcS1_j+0x5a)[0xb645fe4a]
/usr/local/bin/../lib/librustrt.so(rust_task_fail+0x36)[0xb645ff46]
/usr/local/bin/../lib/librustrt.so(_ZN9rust_task4failEPKcS1_j+0x32)[0xb645ffb2]
/usr/local/bin/../lib/librustrt.so(_ZN9rust_task4failEv+0x35)[0xb645fff5]
/usr/local/bin/../lib/librustrt.so(_ZN9rust_task9new_stackEj+0x148)[0xb6460428]
/usr/local/bin/../lib/librustrt.so(_Z14new_stack_slowP14new_stack_args+0x26)[0xb6460656]
/usr/local/bin/../lib/librustrt.so(+0x2bf8f)[0xb6474f8f]
/usr/local/bin/../lib/librustrt.so(upcall_new_stack+0x244)[0xb6463db4]
/usr/local/bin/../lib/librustc-c84825241471686d-0.5.so(+0x929d73)[0xb6dced73]
/usr/local/bin/../lib/librustc-c84825241471686d-0.5.so(+0x31cacd)[0xb67c1acd]
/usr/local/bin/../lib/librustc-c84825241471686d-0.5.so(+0x35406d)[0xb67f906d]
/usr/local/bin/../lib/librustc-c84825241471686d-0.5.so(_ZN6middle2ty14__extensions__10meth_4180110iter_bytes15_abfbbb3dea17df3_05E+0x11a)[0xb67f7a0a]
/usr/local/bin/../lib/librustc-c84825241471686d-0.5.so(+0x354006)[0xb67f9006]
/usr/local/bin/../lib/librustc-c84825241471686d-0.5.so(_ZN6middle2ty14__extensions__10meth_3865310iter_bytes15_abfbbb3dea17df3_05E+0xbf3)[0xb67c14c3]
/usr/local/bin/../lib/librustc-c84825241471686d-0.5.so(_ZN6middle2ty14__extensions__10meth_3864810iter_bytes15_abfbbb3dea17df3_05E+0x76)[0xb67c0726]
/usr/local/bin/../lib/librustc-c84825241471686d-0.5.so(+0x32b23e)[0xb67d023e]
/usr/local/bin/../lib/librustc-c84825241471686d-0.5.so(+0x32a616)[0xb67cf616]
/usr/local/bin/../lib/librustc-c84825241471686d-0.5.so(_ZN6middle2ty7mk_enum17_e37477e8545637e83_05E+0x111)[0xb67d7a71]
/usr/local/bin/../lib/librustc-c84825241471686d-0.5.so(_ZN6middle2ty19fold_regions_and_ty17_3db05a7d86315db93_05E+0x286)[0xb67dcb96]
/usr/local/bin/../lib/librustc-c84825241471686d-0.5.so(+0x33a69f)[0xb67df69f]
/usr/local/bin/../lib/librustc-c84825241471686d-0.5.so(+0x33adfb)[0xb67dfdfb]
/usr/local/bin/../lib/librustc-c84825241471686d-0.5.so(+0x338b9a)[0xb67ddb9a]
/usr/local/bin/../lib/librustc-c84825241471686d-0.5.so(+0x338adb)[0xb67ddadb]
/usr/local/bin/../lib/librustc-c84825241471686d-0.5.so(+0x3389ef)[0xb67dd9ef]
/usr/local/bin/../lib/librustc-c84825241471686d-0.5.so(_ZN6middle2ty19fold_regions_and_ty17_3db05a7d86315db93_05E+0x254)[0xb67dcb64]
/usr/local/bin/../lib/librustc-c84825241471686d-0.5.so(+0x33a69f)[0xb67df69f]
/usr/local/bin/../lib/librustc-c84825241471686d-0.5.so(+0x33adfb)[0xb67dfdfb]
/usr/local/bin/../lib/librustc-c84825241471686d-0.5.so(+0x338be8)[0xb67ddbe8]
/usr/local/bin/../lib/librustc-c84825241471686d-0.5.so(+0x336270)[0xb67db270]
/usr/local/bin/../lib/librustc-c84825241471686d-0.5.so(_ZN6middle2ty14fold_sty_to_ty13_f379ae3486733_05E+0x47)[0xb67db077]
/usr/local/bin/../lib/librustc-c84825241471686d-0.5.so(_ZN6middle2ty19fold_regions_and_ty17_3db05a7d86315db93_05E+0x4c3)[0xb67dcdd3]
/usr/local/bin/../lib/librustc-c84825241471686d-0.5.so(+0x33a69f)[0xb67df69f]
/usr/local/bin/../lib/librustc-c84825241471686d-0.5.so(_ZN6middle2ty5subst17_6886f1198945c8923_05E+0x2cb)[0xb663c6cb]
/usr/local/bin/../lib/librustc-c84825241471686d-0.5.so(_ZN6middle2ty13type_kind_ext17_a99988bff92221c13_05E+0x2d9)[0xb67ed7e9]
/usr/local/bin/../lib/librustc-c84825241471686d-0.5.so(_ZN6middle2ty13type_kind_ext17_a99988bff92221c13_05E+0x407)[0xb67ed917]
/usr/local/bin/../lib/librustc-c84825241471686d-0.5.so(_ZN6middle2ty13type_kind_ext17_a99988bff92221c13_05E+0x2f7)[0xb67ed807]
/usr/local/bin/../lib/librustc-c84825241471686d-0.5.so(_ZN6middle2ty13type_kind_ext17_a99988bff92221c13_05E+0x407)[0xb67ed917]
/usr/local/bin/../lib/librustc-c84825241471686d-0.5.so(_ZN6middle2ty13type_kind_ext17_a99988bff92221c13_05E+0x2f7)[0xb67ed807]
/usr/local/bin/../lib/librustc-c84825241471686d-0.5.so(_ZN6middle2ty13type_kind_ext17_a99988bff92221c13_05E+0x407)[0xb67ed917]
/usr/local/bin/../lib/librustc-c84825241471686d-0.5.so(_ZN6middle2ty13type_kind_ext17_a99988bff92221c13_05E+0x2f7)[0xb67ed807]
/usr/local/bin/../lib/librustc-c84825241471686d-0.5.so(_ZN6middle2ty13type_kind_ext17_a99988bff92221c13_05E+0x407)[0xb67ed917]
/usr/local/bin/../lib/librustc-c84825241471686d-0.5.so(_ZN6middle2ty13type_kind_ext17_a99988bff92221c13_05E+0x2f7)[0xb67ed807]
/usr/local/bin/../lib/librustc-c84825241471686d-0.5.so(_ZN6middle2ty13type_kind_ext17_a99988bff92221c13_05E+0x407)[0xb67ed917]
/usr/local/bin/../lib/librustc-c84825241471686d-0.5.so(_ZN6middle2ty13type_kind_ext17_a99988bff92221c13_05E+0x2f7)[0xb67ed807]
/usr/local/bin/../lib/librustc-c84825241471686d-0.5.so(_ZN6middle2ty13type_kind_ext17_a99988bff92221c13_05E+0x407)[0xb67ed917]
/usr/local/bin/../lib/librustc-c84825241471686d-0.5.so(_ZN6middle2ty13type_kind_ext17_a99988bff92221c13_05E+0x2f7)[0xb67ed807]
/usr/local/bin/../lib/librustc-c84825241471686d-0.5.so(_ZN6middle2ty13type_kind_ext17_a99988bff92221c13_05E+0x407)[0xb67ed917]
/usr/local/bin/../lib/librustc-c84825241471686d-0.5.so(_ZN6middle2ty13type_kind_ext17_a99988bff92221c13_05E+0x2f7)[0xb67ed807]
/usr/local/bin/../lib/librustc-c84825241471686d-0.5.so(_ZN6middle2ty13type_kind_ext17_a99988bff92221c13_05E+0x407)[0xb67ed917]
/usr/local/bin/../lib/librustc-c84825241471686d-0.5.so(_ZN6middle2ty13type_kind_ext17_a99988bff92221c13_05E+0x2f7)[0xb67ed807]
/usr/local/bin/../lib/librustc-c84825241471686d-0.5.so(_ZN6middle2ty13type_kind_ext17_a99988bff92221c13_05E+0x407)[0xb67ed917]
/usr/local/bin/../lib/librustc-c84825241471686d-0.5.so(_ZN6middle2ty13type_kind_ext17_a99988bff92221c13_05E+0x2f7)[0xb67ed807]
/usr/local/bin/../lib/librustc-c84825241471686d-0.5.so(_ZN6middle2ty13type_kind_ext17_a99988bff92221c13_05E+0x407)[0xb67ed917]
/usr/local/bin/../lib/librustc-c84825241471686d-0.5.so(_ZN6middle2ty13type_kind_ext17_a99988bff92221c13_05E+0x2f7)[0xb67ed807]
/usr/local/bin/../lib/librustc-c84825241471686d-0.5.so(_ZN6middle2ty13type_kind_ext17_a99988bff92221c13_05E+0x407)[0xb67ed917]
/usr/local/bin/../lib/librustc-c84825241471686d-0.5.so(_ZN6middle2ty13type_kind_ext17_a99988bff92221c13_05E+0x2f7)[0xb67ed807]
/usr/local/bin/../lib/librustc-c84825241471686d-0.5.so(_ZN6middle2ty13type_kind_ext17_a99988bff92221c13_05E+0x407)[0xb67ed917]
/usr/local/bin/../lib/librustc-c84825241471686d-0.5.so(_ZN6middle2ty13type_kind_ext17_a99988bff92221c13_05E+0x2f7)[0xb67ed807]
/usr/local/bin/../lib/librustc-c84825241471686d-0.5.so(_ZN6middle2ty13type_kind_ext17_a99988bff92221c13_05E+0x407)[0xb67ed917]
/usr/local/bin/../lib/librustc-c84825241471686d-0.5.so(_ZN6middle2ty13type_kind_ext17_a99988bff92221c13_05E+0x2f7)[0xb67ed807]
/usr/local/bin/../lib/librustc-c84825241471686d-0.5.so(_ZN6middle2ty13type_kind_ext17_a99988bff92221c13_05E+0x407)[0xb67ed917]
/usr/local/bin/../lib/librustc-c84825241471686d-0.5.so(_ZN6middle2ty13type_kind_ext17_a99988bff92221c13_05E+0x2f7)[0xb67ed807]
/usr/local/bin/../lib/librustc-c84825241471686d-0.5.so(_ZN6middle2ty13type_kind_ext17_a99988bff92221c13_05E+0x407)[0xb67ed917]
/usr/local/bin/../lib/librustc-c84825241471686d-0.5.so(_ZN6middle2ty13type_kind_ext17_a99988bff92221c13_05E+0x2f7)[0xb67ed807]
/usr/local/bin/../lib/librustc-c84825241471686d-0.5.so(_ZN6middle2ty13type_kind_ext17_a99988bff92221c13_05E+0x407)[0xb67ed917]
/usr/local/bin/../lib/librustc-c84825241471686d-0.5.so(_ZN6middle2ty13type_kind_ext17_a99988bff92221c13_05E+0x2f7)[0xb67ed807]
/usr/local/bin/../lib/librustc-c84825241471686d-0.5.so(_ZN6middle2ty13type_kind_ext17_a99988bff92221c13_05E+0x407)[0xb67ed917]
/usr/local/bin/../lib/librustc-c84825241471686d-0.5.so(_ZN6middle2ty13type_kind_ext17_a99988bff92221c13_05E+0x2f7)[0xb67ed807]
/usr/local/bin/../lib/librustc-c84825241471686d-0.5.so(_ZN6middle2ty13type_kind_ext17_a99988bff92221c13_05E+0x407)[0xb67ed917]
/usr/local/bin/../lib/librustc-c84825241471686d-0.5.so(_ZN6middle2ty13type_kind_ext17_a99988bff92221c13_05E+0x2f7)[0xb67ed807]
/usr/local/bin/../lib/librustc-c84825241471686d-0.5.so(_ZN6middle2ty13type_kind_ext17_a99988bff92221c13_05E+0x407)[0xb67ed917]
/usr/local/bin/../lib/librustc-c84825241471686d-0.5.so(_ZN6middle2ty13type_kind_ext17_a99988bff92221c13_05E+0x2f7)[0xb67ed807]
/usr/local/bin/../lib/librustc-c84825241471686d-0.5.so(_ZN6middle2ty13type_kind_ext17_a99988bff92221c13_05E+0x407)[0xb67ed917]
/usr/local/bin/../lib/librustc-c84825241471686d-0.5.so(_ZN6middle2ty13type_kind_ext17_a99988bff92221c13_05E+0x2f7)[0xb67ed807]
/usr/local/bin/../lib/librustc-c84825241471686d-0.5.so(_ZN6middle2ty13type_kind_ext17_a99988bff92221c13_05E+0x407)[0xb67ed917]
/usr/local/bin/../lib/librustc-c84825241471686d-0.5.so(_ZN6middle2ty13type_kind_ext17_a99988bff92221c13_05E+0x2f7)[0xb67ed807]
/usr/local/bin/../lib/librustc-c84825241471686d-0.5.so(_ZN6middle2ty13type_kind_ext17_a99988bff92221c13_05E+0x407)[0xb67ed917]
/usr/local/bin/../lib/librustc-c84825241471686d-0.5.so(_ZN6middle2ty13type_kind_ext17_a99988bff92221c13_05E+0x2f7)[0xb67ed807]
/usr/local/bin/../lib/librustc-c84825241471686d-0.5.so(_ZN6middle2ty13type_kind_ext17_a99988bff92221c13_05E+0x407)[0xb67ed917]
/usr/local/bin/../lib/librustc-c84825241471686d-0.5.so(_ZN6middle2ty13type_kind_ext17_a99988bff92221c13_05E+0x2f7)[0xb67ed807]
/usr/local/bin/../lib/librustc-c84825241471686d-0.5.so(_ZN6middle2ty13type_kind_ext17_a99988bff92221c13_05E+0x407)[0xb67ed917]
/usr/local/bin/../lib/librustc-c84825241471686d-0.5.so(_ZN6middle2ty13type_kind_ext17_a99988bff92221c13_05E+0x2f7)[0xb67ed807]
/usr/local/bin/../lib/librustc-c84825241471686d-0.5.so(_ZN6middle2ty13type_kind_ext17_a99988bff92221c13_05E+0x407)[0xb67ed917]
/usr/local/bin/../lib/librustc-c84825241471686d-0.5.so(_ZN6middle2ty13type_kind_ext17_a99988bff92221c13_05E+0x2f7)[0xb67ed807]
/usr/local/bin/../lib/librustc-c84825241471686d-0.5.so(_ZN6middle2ty13type_kind_ext17_a99988bff92221c13_05E+0x407)[0xb67ed917]
/usr/local/bin/../lib/librustc-c84825241471686d-0.5.so(_ZN6middle2ty13type_kind_ext17_a99988bff92221c13_05E+0x2f7)[0xb67ed807]
/usr/local/bin/../lib/librustc-c84825241471686d-0.5.so(_ZN6middle2ty13type_kind_ext17_a99988bff92221c13_05E+0x407)[0xb67ed917]
/usr/local/bin/../lib/librustc-c84825241471686d-0.5.so(_ZN6middle2ty13type_kind_ext17_a99988bff92221c13_05E+0x2f7)[0xb67ed807]
/usr/local/bin/../lib/librustc-c84825241471686d-0.5.so(_ZN6middle2ty13type_kind_ext17_a99988bff92221c13_05E+0x407)[0xb67ed917]
/usr/local/bin/../lib/librustc-c84825241471686d-0.5.so(_ZN6middle2ty13type_kind_ext17_a99988bff92221c13_05E+0x2f7)[0xb67ed807]
/usr/local/bin/../lib/librustc-c84825241471686d-0.5.so(_ZN6middle2ty13type_kind_ext17_a99988bff92221c13_05E+0x407)[0xb67ed917]
/usr/local/bin/../lib/librustc-c84825241471686d-0.5.so(_ZN6middle2ty13type_kind_ext17_a99988bff92221c13_05E+0x2f7)[0xb67ed807]
/usr/local/bin/../lib/librustc-c84825241471686d-0.5.so(_ZN6middle2ty13type_kind_ext17_a99988bff92221c13_05E+0x407)[0xb67ed917]
/usr/local/bin/../lib/librustc-c84825241471686d-0.5.so(_ZN6middle2ty13type_kind_ext17_a99988bff92221c13_05E+0x2f7)[0xb67ed807]
/usr/local/bin/../lib/librustc-c84825241471686d-0.5.so(_ZN6middle2ty13type_kind_ext17_a99988bff92221c13_05E+0x407)[0xb67ed917]
/usr/local/bin/../lib/librustc-c84825241471686d-0.5.so(_ZN6middle2ty13type_kind_ext17_a99988bff92221c13_05E+0x2f7)[0xb67ed807]
/usr/local/bin/../lib/librustc-c84825241471686d-0.5.so(_ZN6middle2ty13type_kind_ext17_a99988bff92221c13_05E+0x407)[0xb67ed917]
/usr/local/bin/../lib/librustc-c84825241471686d-0.5.so(_ZN6middle2ty13type_kind_ext17_a99988bff92221c13_05E+0x2f7)[0xb67ed807]
/usr/local/bin/../lib/librustc-c84825241471686d-0.5.so(_ZN6middle2ty13type_kind_ext17_a99988bff92221c13_05E+0x407)[0xb67ed917]
/usr/local/bin/../lib/librustc-c84825241471686d-0.5.so(_ZN6middle2ty13type_kind_ext17_a99988bff92221c13_05E+0x2f7)[0xb67ed807]
/usr/local/bin/../lib/librustc-c84825241471686d-0.5.so(_ZN6middle2ty13type_kind_ext17_a99988bff92221c13_05E+0x407)[0xb67ed917]
/usr/local/bin/../lib/librustc-c84825241471686d-0.5.so(_ZN6middle2ty13type_kind_ext17_a99988bff92221c13_05E+0x2f7)[0xb67ed807]
/usr/local/bin/../lib/librustc-c84825241471686d-0.5.so(_ZN6middle2ty13type_kind_ext17_a99988bff92221c13_05E+0x407)[0xb67ed917]
/usr/local/bin/../lib/librustc-c84825241471686d-0.5.so(_ZN6middle2ty13type_kind_ext17_a99988bff92221c13_05E+0x2f7)[0xb67ed807]
/usr/local/bin/../lib/librustc-c84825241471686d-0.5.so(_ZN6middle2ty13type_kind_ext17_a99988bff92221c13_05E+0x407)[0xb67ed917]
/usr/local/bin/../lib/librustc-c84825241471686d-0.5.so(_ZN6middle2ty13type_kind_ext17_a99988bff92221c13_05E+0x2f7)[0xb67ed807]
/usr/local/bin/../lib/librustc-c84825241471686d-0.5.so(_ZN6middle2ty13type_kind_ext17_a99988bff92221c13_05E+0x407)[0xb67ed917]
/usr/local/bin/../lib/librustc-c84825241471686d-0.5.so(_ZN6middle2ty13type_kind_ext17_a99988bff92221c13_05E+0x2f7)[0xb67ed807]
/usr/local/bin/../lib/librustc-c84825241471686d-0.5.so(_ZN6middle2ty13type_kind_ext17_a99988bff92221c13_05E+0x407)[0xb67ed917]
/usr/local/bin/../lib/librustc-c84825241471686d-0.5.so(_ZN6middle2ty13type_kind_ext17_a99988bff92221c13_05E+0x2f7)[0xb67ed807]
/usr/local/bin/../lib/librustc-c84825241471686d-0.5.so(_ZN6middle2ty13type_kind_ext17_a99988bff92221c13_05E+0x407)[0xb67ed917]
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/usr/local/bin/../lib/librustc-c84825241471686d-0.5.so(_ZN6middle2ty13type_kind_ext17_a99988bff92221c13_05E+0x2f7)[0xb67ed807]
/usr/local/bin/../lib/librustc-c84825241471686d-0.5.so(_ZN6middle2ty13type_kind_ext17_a99988bff92221c13_05E+0x407)[0xb67ed917]
/usr/local/bin/../lib/librustc-c84825241471686d-0.5.so(_ZN6middle2ty13type_kind_ext17_a99988bff92221c13_05E+0x2f7)[0xb67ed807]
/usr/local/bin/../lib/librustc-c84825241471686d-0.5.so(_ZN6middle2ty13type_kind_ext17_a99988bff92221c13_05E+0x407)[0xb67ed917]
/usr/local/bin/../lib/librustc-c84825241471686d-0.5.so(_ZN6middle2ty13type_kind_ext17_a99988bff92221c13_05E+0x2f7)[0xb67ed807]
/usr/local/bin/../lib/librustc-c84825241471686d-0.5.so(_ZN6middle2ty13type_kind_ext17_a99988bff92221c13_05E+0x407)[0xb67ed917]
/usr/local/bin/../lib/librustc-c84825241471686d-0.5.so(_ZN6middle2ty13type_kind_ext17_a99988bff92221c13_05E+0x2f7)[0xb67ed807]
/usr/local/bin/../lib/librustc-c84825241471686d-0.5.so(_ZN6middle2ty13type_kind_ext17_a99988bff92221c13_05E+0x407)[0xb67ed917]
/usr/local/bin/../lib/librustc-c84825241471686d-0.5.so(_ZN6middle2ty13type_kind_ext17_a99988bff92221c13_05E+0x2f7)[0xb67ed807]
/usr/local/bin/../lib/librustc-c84825241471686d-0.5.so(_ZN6middle2ty13type_kind_ext17_a99988bff92221c13_05E+0x407)[0xb67ed917]
/usr/local/bin/../lib/librustc-c84825241471686d-0.5.so(_ZN6middle2ty13type_kind_ext17_a99988bff92221c13_05E+0x2f7)[0xb67ed807]
/usr/local/bin/../lib/librustc-c84825241471686d-0.5.so(_ZN6middle2ty13type_kind_ext17_a99988bff92221c13_05E+0x407)[0xb67ed917]
/usr/local/bin/../lib/librustc-c84825241471686d-0.5.so(_ZN6middle2ty13type_kind_ext17_a99988bff92221c13_05E+0x2f7)[0xb67ed807]
/usr/local/bin/../lib/librustc-c84825241471686d-0.5.so(_ZN6middle2ty13type_kind_ext17_a99988bff92221c13_05E+0x407)[0xb67ed917]
/usr/local/bin/../lib/librustc-c84825241471686d-0.5.so(_ZN6middle2ty13type_kind_ext17_a99988bff92221c13_05E+0x2f7)[0xb67ed807]
/usr/local/bin/../lib/librustc-c84825241471686d-0.5.so(_ZN6middle2ty13type_kind_ext17_a99988bff92221c13_05E+0x407)[0xb67ed917]
/usr/local/bin/../lib/librustc-c84825241471686d-0.5.so(_ZN6middle2ty13type_kind_ext17_a99988bff92221c13_05E+0x2f7)[0xb67ed807]
/usr/local/bin/../lib/librustc-c84825241471686d-0.5.so(_ZN6middle2ty13type_kind_ext17_a99988bff92221c13_05E+0x407)[0xb67ed917]
/usr/local/bin/../lib/librustc-c84825241471686d-0.5.so(_ZN6middle2ty13type_kind_ext17_a99988bff92221c13_05E+0x2f7)[0xb67ed807]
/usr/local/bin/../lib/librustc-c84825241471686d-0.5.so(_ZN6middle2ty13type_kind_ext17_a99988bff92221c13_05E+0x407)[0xb67ed917]
/usr/local/bin/../lib/librustc-c84825241471686d-0.5.so(_ZN6middle2ty13type_kind_ext17_a99988bff92221c13_05E+0x2f7)[0xb67ed807]
/usr/local/bin/../lib/librustc-c84825241471686d-0.5.so(_ZN6middle2ty13type_kind_ext17_a99988bff92221c13_05E+0x407)[0xb67ed917]
/usr/local/bin/../lib/librustc-c84825241471686d-0.5.so(_ZN6middle2ty13type_kind_ext17_a99988bff92221c13_05E+0x2f7)[0xb67ed807]
/usr/local/bin/../lib/librustc-c84825241471686d-0.5.so(_ZN6middle2ty13type_kind_ext17_a99988bff92221c13_05E+0x407)[0xb67ed917]
/usr/local/bin/../lib/librustc-c84825241471686d-0.5.so(_ZN6middle2ty13type_kind_ext17_a99988bff92221c13_05E+0x2f7)[0xb67ed807]
/usr/local/bin/../lib/librustc-c84825241471686d-0.5.so(_ZN6middle2ty13type_kind_ext17_a99988bff92221c13_05E+0x407)[0xb67ed917]
/usr/local/bin/../lib/librustc-c84825241471686d-0.5.so(_ZN6middle2ty13type_kind_ext17_a99988bff92221c13_05E+0x2f7)[0xb67ed807]
/usr/local/bin/../lib/librustc-c84825241471686d-0.5.so(_ZN6middle2ty13type_kind_ext17_a99988bff92221c13_05E+0x407)[0xb67ed917]
/usr/local/bin/../lib/librustc-c84825241471686d-0.5.so(_ZN6middle2ty13type_kind_ext17_a99988bff92221c13_05E+0x2f7)[0xb67ed807]
/usr/local/bin/../lib/librustc-c84825241471686d-0.5.so(_ZN6middle2ty13type_kind_ext17_a99988bff92221c13_05E+0x407)[0xb67ed917]
/usr/local/bin/../lib/librustc-c84825241471686d-0.5.so(_ZN6middle2ty13type_kind_ext17_a99988bff92221c13_05E+0x2f7)[0xb67ed807]
/usr/local/bin/../lib/librustc-c84825241471686d-0.5.so(_ZN6middle2ty13type_kind_ext17_a99988bff92221c13_05E+0x407)[0xb67ed917]
/usr/local/bin/../lib/librustc-c84825241471686d-0.5.so(_ZN6middle2ty13type_kind_ext17_a99988bff92221c13_05E+0x2f7)[0xb67ed807]
/usr/local/bin/../lib/librustc-c84825241471686d-0.5.so(_ZN6middle2ty13type_kind_ext17_a99988bff92221c13_05E+0x407)[0xb67ed917]
error: internal compiler error: unexpected failure
note: the compiler hit an unexpected failure path. this is a bug
note: try running with RUST_LOG=rustc=1,::rt::backtrace to get further details and report the results to github.com/mozilla/rust/issues
rust: task failed at 'explicit failure', /home/leah/rust-0.5/src/librustc/rustc.rc:425
/usr/local/bin/../lib/librustrt.so(_ZN9rust_task13begin_failureEPKcS1_j+0x5a)[0xb645fe4a]
/usr/local/bin/../lib/librustrt.so(rust_task_fail+0x36)[0xb645ff46]
/usr/local/bin/../lib/librustrt.so(_ZN9rust_task4failEPKcS1_j+0x32)[0xb645ffb2]
/usr/local/bin/../lib/librustrt.so(upcall_s_fail+0x53)[0xb6462103]
/usr/local/bin/../lib/librustrt.so(+0x2bf8f)[0xb6474f8f]
/usr/local/bin/../lib/librustrt.so(upcall_fail+0x18c)[0xb646291c]
/usr/local/bin/../lib/librustrt.so(rust_upcall_fail+0x2b)[0xb6462a5b]
/usr/local/bin/../lib/libcore-c3ca5d77d81b46c1-0.5.so(_ZN3sys6rustrt16rust_upcall_fail17_905a6473a4b75bd83_05E+0x45)[0xb75d8e75]
/usr/local/bin/../lib/libcore-c3ca5d77d81b46c1-0.5.so(+0xa1fbb)[0xb75d8fbb]
/usr/local/bin/../lib/libcore-c3ca5d77d81b46c1-0.5.so(+0x2ba96)[0xb7562a96]
/usr/local/bin/../lib/libcore-c3ca5d77d81b46c1-0.5.so(+0xb322c)[0xb75ea22c]
/usr/local/bin/../lib/librustc-c84825241471686d-0.5.so(_ZN7monitor17_3dc9d53d274031c13_05E+0x2d6f)[0xb6dcb47f]
/usr/local/bin/../lib/librustc-c84825241471686d-0.5.so(+0x929d88)[0xb6dced88]
/usr/local/bin/../lib/librustc-c84825241471686d-0.5.so(_ZN4main16_2fb85b4a659c4103_05E+0x85)[0xb6dcea05]
rustc(_rust_main+0x31)[0x80489b1]
/usr/local/bin/../lib/librustrt.so(_Z18task_start_wrapperP10spawn_args+0x31)[0xb64607d1]
rust: domain main @0x9bbf2d8 root task failed
rust: task failed at 'killed', /home/leah/rust-0.5/src/libcore/task/mod.rs:570
/usr/local/bin/../lib/librustrt.so(_ZN9rust_task13begin_failureEPKcS1_j+0x5a)[0xb645fe4a]
/usr/local/bin/../lib/librustrt.so(rust_task_fail+0x36)[0xb645ff46]
/usr/local/bin/../lib/librustrt.so(_ZN9rust_task4failEPKcS1_j+0x32)[0xb645ffb2]
/usr/local/bin/../lib/librustrt.so(upcall_s_fail+0x53)[0xb6462103]
/usr/local/bin/../lib/librustrt.so(+0x2bf8f)[0xb6474f8f]
/usr/local/bin/../lib/librustrt.so(upcall_fail+0x18c)[0xb646291c]
/usr/local/bin/../lib/librustrt.so(rust_upcall_fail+0x2b)[0xb6462a5b]
/usr/local/bin/../lib/libcore-c3ca5d77d81b46c1-0.5.so(_ZN3sys6rustrt16rust_upcall_fail17_905a6473a4b75bd83_05E+0x45)[0xb75d8e75]
/usr/local/bin/../lib/libcore-c3ca5d77d81b46c1-0.5.so(+0xa1fbb)[0xb75d8fbb]
/usr/local/bin/../lib/libcore-c3ca5d77d81b46c1-0.5.so(+0x2ba96)[0xb7562a96]
/usr/local/bin/../lib/libcore-c3ca5d77d81b46c1-0.5.so(_ZN4task5yield17_56812fae66173efd3_05E+0xc8)[0xb758fdf8]
/usr/local/bin/../lib/libcore-c3ca5d77d81b46c1-0.5.so(+0x905c5)[0xb75c75c5]
/usr/local/bin/../lib/libcore-c3ca5d77d81b46c1-0.5.so(_ZN7private11weaken_task17_ababfc7d1239606c3_05E+0xdb)[0xb75c73fb]
/usr/local/bin/../lib/libcore-c3ca5d77d81b46c1-0.5.so(+0x902c6)[0xb75c72c6]
/usr/local/bin/../lib/libcore-c3ca5d77d81b46c1-0.5.so(+0x8db70)[0xb75c4b70]
/usr/local/bin/../lib/libcore-c3ca5d77d81b46c1-0.5.so(+0xb322c)[0xb75ea22c]
/usr/local/bin/../lib/libcore-c3ca5d77d81b46c1-0.5.so(+0x744ac)[0xb75ab4ac]
/usr/local/bin/../lib/libcore-c3ca5d77d81b46c1-0.5.so(+0xb322c)[0xb75ea22c]
/usr/local/bin/../lib/librustrt.so(_Z18task_start_wrapperP10spawn_args+0x31)[0xb64607d1]