message: complex: require T:NumAssign for assign ops
diff: @@ -521,54 +521,54 @@ impl<T: Clone + Num> Div<Complex<T>> for Complex<T> {
  mod opassign {
  use std::ops::{AddAssign, SubAssign, MulAssign, DivAssign};
  - use traits::Num;
  + use traits::NumAssign;
  use Complex;
  - impl<T: Clone + Num> AddAssign for Complex<T> {
  + impl<T: Clone + NumAssign> AddAssign for Complex<T> {
  fn add_assign(&mut self, other: Complex<T>) {
  *self = self.clone() + other;
  }
  }
  - impl<T: Clone + Num> SubAssign for Complex<T> {
  + impl<T: Clone + NumAssign> SubAssign for Complex<T> {
  fn sub_assign(&mut self, other: Complex<T>) {
  *self = self.clone() - other;
  }
  }
  - impl<T: Clone + Num> MulAssign for Complex<T> {
  + impl<T: Clone + NumAssign> MulAssign for Complex<T> {
  fn mul_assign(&mut self, other: Complex<T>) {
  *self = self.clone() * other;
  }
  }
  - impl<T: Clone + Num> DivAssign for Complex<T> {
  + impl<T: Clone + NumAssign> DivAssign for Complex<T> {
  fn div_assign(&mut self, other: Complex<T>) {
  *self = self.clone() / other;
  }
  }
  - impl<T: Num + AddAssign> AddAssign<T> for Complex<T> {
  + impl<T: Clone + NumAssign> AddAssign<T> for Complex<T> {
  fn add_assign(&mut self, other: T) {
  self.re += other;
  }
  }
  - impl<T: Num + SubAssign> SubAssign<T> for Complex<T> {
  + impl<T: Clone + NumAssign> SubAssign<T> for Complex<T> {
  fn sub_assign(&mut self, other: T) {
  self.re -= other;
  }
  }
  - impl<T: Clone + Num + MulAssign> MulAssign<T> for Complex<T> {
  + impl<T: Clone + NumAssign> MulAssign<T> for Complex<T> {
  fn mul_assign(&mut self, other: T) {
  self.re *= other.clone();
  self.im *= other;
  }
  }
  - impl<T: Clone + Num + DivAssign> DivAssign<T> for Complex<T> {
  + impl<T: Clone + NumAssign> DivAssign<T> for Complex<T> {
  fn div_assign(&mut self, other: T) {
  self.re /= other.clone();
  self.im /= other;
  @@ -577,13 +577,13 @@ mod opassign {
  macro_rules! forward_op_assign {
  (impl $imp:ident, $method:ident) => {
  - impl<'a, T: Clone + Num> $imp<&'a Complex<T>> for Complex<T> {
  + impl<'a, T: Clone + NumAssign> $imp<&'a Complex<T>> for Complex<T> {
  #[inline]
  fn $method(&mut self, other: &Complex<T>) {
  self.$method(other.clone())
  }
  }
  - impl<'a, T: Clone + Num + $imp> $imp<&'a T> for Complex<T> {
  + impl<'a, T: Clone + NumAssign> $imp<&'a T> for Complex<T> {
  #[inline]
  fn $method(&mut self, other: &T) {
  self.$method(other.clone())
  