error: unused import: `InternalSubsts`
 --> src/librustc_typeck/check/intrinsic.rs:9:24
  |
9 | use rustc::ty::subst::{InternalSubsts, Subst};
  |                        ^^^^^^^^^^^^^^
  |
  = note: `-D unused-imports` implied by `-D warnings`

error: unused import: `sym`
  --> src/librustc_typeck/check/intrinsic.rs:12:38
   |
12 | use syntax::symbol::{InternedString, sym};
   |                                      ^^^

error: unused import: `rustc_serialize::Encodable`
  --> src/librustc_mir/interpret/operand.rs:22:5
   |
22 | use rustc_serialize::Encodable;
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
   |
   = note: `-D unused-imports` implied by `-D warnings`

error: aborting due to 2 previous errors

error: Could not compile `rustc_typeck`.
warning: build failed, waiting for other jobs to finish...
error[E0560]: struct `rustc::mir::VarBindingForm<'_>` has no field named `var_id`
   --> src/librustc_mir/build/mod.rs:846:37
    |
846 |                                     var_id: var,
    |                                     ^^^^^^ `rustc::mir::VarBindingForm<'_>` does not have this field
    |
    = note: available fields are: `binding_mode`, `opt_ty_info`, `opt_match_place`, `pat_span`

error[E0560]: struct `rustc::mir::VarBindingForm<'_>` has no field named `var_id`
    --> src/librustc_mir/build/matches/mod.rs:1740:17
     |
1740 |                 var_id,
     |                 ^^^^^^ `rustc::mir::VarBindingForm<'_>` does not have this field
     |
     = note: available fields are: `binding_mode`, `opt_ty_info`, `opt_match_place`, `pat_span`

error: aborting due to 3 previous errors