USE-PACKAGE #<PACKAGE "ITERATE"> causes name-conflicts in
  #<PACKAGE "COMMON-LISP-USER"> between the following symbols:
    ITERATE:ITERATE, COMMON-LISP-USER::ITERATE
See also:
  The ANSI Standard, Section 11.1.1.2.5

Type HELP for debugger help, or (SB-EXT:EXIT) to exit from SBCL.

restarts (invokable by number or by possibly-abbreviated name):
  0: [KEEP-OLD        ] Keep symbols already accessible in COMMON-LISP-USER (shadowing others).
  1: [TAKE-NEW        ] Make newly exposed symbols accessible in COMMON-LISP-USER, uninterning old ones.
  2: [RESOLVE-CONFLICT] Resolve conflict.
  3: [ABORT           ] Exit debugger, returning to top level.

(NAME-CONFLICT #<PACKAGE "COMMON-LISP-USER"> USE-PACKAGE #<PACKAGE "ITERATE"> ITERATE:ITERATE ITERATE)