clojure 1.7.0 evaluates function at compile time

; At compile time, this clojure file is outputting the evaluation of test-observe
; I reduced it to its minimal code to reproduce the issue
; using org.clojure:clojure:1.7.0

---CLJ FILE---
(ns dev.observe)

(defmacro observe [thing]
  (let []
    (println &env)
    ))

(defn test-observe []
  (let [x 1]
    (observe x)
    )
  )

---COMPILE TIME OUTPUT---
{x #<LocalBinding clojure.lang.Compiler$LocalBinding@88837e2>}
#'dev.observe/test-observe