2 files changed, 5 insertions, 5 deletions
diff --git a/src/doc/book/listings/ch08-common-collections/listing-08-06/output.txt b/src/doc/book/listings/ch08-common-collections/listing-08-06/output.txt
index ab512a9e6..3104205f3 100644
--- a/src/doc/book/listings/ch08-common-collections/listing-08-06/output.txt
+++ b/src/doc/book/listings/ch08-common-collections/listing-08-06/output.txt
@@ -5,12 +5,12 @@ error[E0502]: cannot borrow `v` as mutable because it is also borrowed as immuta
   |
 4 |     let first = &v[0];
   |                  - immutable borrow occurs here
-5 | 
+5 |
 6 |     v.push(6);
   |     ^^^^^^^^^ mutable borrow occurs here
-7 | 
-8 |     println!("The first element is: {}", first);
-  |                                          ----- immutable borrow later used here
+7 |
+8 |     println!("The first element is: {first}");
+  |                                      ----- immutable borrow later used here
 
 For more information about this error, try `rustc --explain E0502`.
 error: could not compile `collections` due to previous error
diff --git a/src/doc/book/listings/ch08-common-collections/output-only-01-not-char-boundary/output.txt b/src/doc/book/listings/ch08-common-collections/output-only-01-not-char-boundary/output.txt
index 98d1f183a..35db879c9 100644
--- a/src/doc/book/listings/ch08-common-collections/output-only-01-not-char-boundary/output.txt
+++ b/src/doc/book/listings/ch08-common-collections/output-only-01-not-char-boundary/output.txt
@@ -2,5 +2,5 @@ $ cargo run
    Compiling collections v0.1.0 (file:///projects/collections)
     Finished dev [unoptimized + debuginfo] target(s) in 0.43s
      Running `target/debug/collections`
-thread 'main' panicked at 'byte index 1 is not a char boundary; it is inside 'З' (bytes 0..2) of `Здравствуйте`', library/core/src/str/mod.rs:127:5
+thread 'main' panicked at 'byte index 1 is not a char boundary; it is inside 'З' (bytes 0..2) of `Здравствуйте`', src/main.rs:4:14
 note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace