error[E0275]: overflow evaluating the requirement `K: std::marker::Send`
  --> $DIR/recursion_limit.rs:34:5
   |
LL | fn is_send<T:Send>() { }
   |              ---- required by this bound in `is_send`
...
LL |     is_send::<A>();
   |     ^^^^^^^^^^^^
   |
   = help: consider adding a `#![recursion_limit="20"]` attribute to your crate (`recursion_limit`)
   = note: required because it appears within the type `J`
   = note: required because it appears within the type `I`
   = note: required because it appears within the type `H`
   = note: required because it appears within the type `G`
   = note: required because it appears within the type `F`
   = note: required because it appears within the type `E`
   = note: required because it appears within the type `D`
   = note: required because it appears within the type `C`
   = note: required because it appears within the type `B`
   = note: required because it appears within the type `A`

error: aborting due to previous error

For more information about this error, try `rustc --explain E0275`.