vinc · vinc · Dec 17, 2023 · Dec 17, 2023 · Dec 17, 2023 · Dec 17, 2023
diff --git a/Cargo.lock b/Cargo.lock
diff --git a/dsk/bin/clear b/dsk/bin/clear
diff --git a/dsk/bin/exec b/dsk/bin/exec
diff --git a/dsk/bin/halt b/dsk/bin/halt
diff --git a/dsk/bin/hello b/dsk/bin/hello
diff --git a/dsk/bin/print b/dsk/bin/print
diff --git a/dsk/bin/reboot b/dsk/bin/reboot
diff --git a/dsk/bin/sleep b/dsk/bin/sleep
diff --git a/rust-toolchain.toml b/rust-toolchain.toml
@@ -1,3 +1,3 @@
 [toolchain]
-channel = "nightly-2023-05-01"
+channel = "nightly-2023-12-01"
 components = ["rust-src", "llvm-tools-preview"]
diff --git a/src/api/unit.rs b/src/api/unit.rs
@@ -34,7 +34,6 @@ fn binary_size(size: usize) -> String {
 }
 
 fn decimal_size(size: usize) -> String {
-    let size = size;
     let n = PREFIXES.len();
     for i in 0..n {
         let prefix = PREFIXES[i];

diff --git a/src/usr/lisp/env.rs b/src/usr/lisp/env.rs
@@ -11,7 +11,6 @@ use alloc::rc::Rc;
 use alloc::string::String;
 use alloc::string::ToString;
 use alloc::vec::Vec;
-use core::borrow::Borrow;
 use core::cell::RefCell;
 use core::f64::consts::PI;
 
@@ -99,7 +98,7 @@ pub fn env_get(key: &str, env: &Rc<RefCell<Env>>) -> Result<Exp, Err> {
         Some(exp) => Ok(exp.clone()),
         None => {
             match &env.outer {
-                Some(outer_env) => env_get(key, outer_env.borrow()),
+                Some(outer_env) => env_get(key, outer_env),
                 None => could_not!("find symbol '{}'", key),
             }
         }
@@ -115,7 +114,7 @@ pub fn env_set(key: &str, val: Exp, env: &Rc<RefCell<Env>>) -> Result<Exp, Err>
         }
         None => {
             match &env.outer {
-                Some(outer_env) => env_set(key, val, outer_env.borrow()),
+                Some(outer_env) => env_set(key, val, outer_env),
                 None => could_not!("find symbol '{}'", key),
             }
         }