Update Rust code to the current Rust nightly

Lots of changes! Hopefully everything is still semantically equivalent (tests
still pass)

1 files changed, 0 insertions, 25 deletions

diff --git a/rust/src/step0_repl.rs b/rust/src/step0_repl.rs
deleted file mode 100644
index ac9cf24..0000000
--- a/rust/src/step0_repl.rs
+++ /dev/null
@@ -1,25 +0,0 @@
-use readline::mal_readline;
-mod readline;
-
-// read
-fn read(str: String) -> String {
-    str
-}
-
-// eval
-fn eval(ast: String) -> String {
-    ast
-}
-
-// print
-fn print(exp: String) -> String {
-    exp
-}
-
-fn main() {
-    loop {
-        let line = mal_readline("user> ");
-        match line { None => break, _ => () }
-        println!("{}", print(eval(read(line.unwrap()))));
-    }
-}