Sep 19 13:33:33.582 INFO checking yuya373/trpl against master#1e21c9a297a9fe668d62887a3a6a4add8e717b17 for pr-54352
Sep 19 13:33:33.582 INFO running: cargo +1e21c9a297a9fe668d62887a3a6a4add8e717b17-alt check --frozen --all --all-targets
Sep 19 13:33:33.582 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-3/pr-54352/master#1e21c9a297a9fe668d62887a3a6a4add8e717b17:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54352/worker-3/master#1e21c9a297a9fe668d62887a3a6a4add8e717b17:/target:rw,Z" "-v" "/home/ec2-user/crater/./work/local/cargo-home:/cargo-home:ro,Z" "-v" "/home/ec2-user/crater/./work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "CMD=cargo +1e21c9a297a9fe668d62887a3a6a4add8e717b17-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "1536M" "crater"`
Sep 19 13:33:33.831 INFO blam! 3d187f1565f68d589b6d93866861eb2de4559080129776b2efd92abbbece84ec
Sep 19 13:33:33.833 INFO running `"docker" "start" "-a" "3d187f1565f68d589b6d93866861eb2de4559080129776b2efd92abbbece84ec"`
Sep 19 13:33:34.961 INFO kablam! usermod: no changes
Sep 19 13:33:35.035 INFO kablam!     Checking chapter7 v0.1.0 (/source/chapter7)
Sep 19 13:33:35.035 INFO kablam!     Checking chapter6 v0.1.0 (/source/chapter6)
Sep 19 13:33:35.035 INFO kablam!     Checking chapter8 v0.1.0 (/source/chapter8)
Sep 19 13:33:35.042 INFO kablam!     Checking chapter5 v0.1.0 (/source/chapter5)
Sep 19 13:33:35.042 INFO kablam!     Checking chapter9 v0.1.0 (/source/chapter9)
Sep 19 13:33:35.042 INFO kablam!     Checking chapter4 v0.1.0 (/source/chapter4)
Sep 19 13:33:35.309 INFO kablam!     Checking chapter10 v0.1.0 (/source/chapter10)
Sep 19 13:33:35.719 INFO kablam! warning: field is never used: `part`
Sep 19 13:33:35.719 INFO kablam!  --> chapter10/src/main.rs:5:5
Sep 19 13:33:35.719 INFO kablam!   |
Sep 19 13:33:35.719 INFO kablam! 5 |     part: &'a str,
Sep 19 13:33:35.719 INFO kablam!   |     ^^^^^^^^^^^^^
Sep 19 13:33:35.719 INFO kablam!   |
Sep 19 13:33:35.719 INFO kablam!   = note: #[warn(dead_code)] on by default
Sep 19 13:33:35.719 INFO kablam! 
Sep 19 13:33:35.719 INFO kablam! warning: method is never used: `announce_and_return_part`
Sep 19 13:33:35.719 INFO kablam!   --> chapter10/src/main.rs:15:5
Sep 19 13:33:35.719 INFO kablam!    |
Sep 19 13:33:35.719 INFO kablam! 15 |     fn announce_and_return_part(&self, announcement: &str) -> &str {
Sep 19 13:33:35.719 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 19 13:33:35.719 INFO kablam! 
Sep 19 13:33:36.014 INFO kablam! warning: unused variable: `user2`
Sep 19 13:33:36.014 INFO kablam!   --> chapter5/src/main.rs:12:9
Sep 19 13:33:36.014 INFO kablam!    |
Sep 19 13:33:36.014 INFO kablam! 12 |     let user2 = User {
Sep 19 13:33:36.014 INFO kablam!    |         ^^^^^ help: consider using `_user2` instead
Sep 19 13:33:36.014 INFO kablam!    |
Sep 19 13:33:36.014 INFO kablam!    = note: #[warn(unused_variables)] on by default
Sep 19 13:33:36.014 INFO kablam! 
Sep 19 13:33:36.014 INFO kablam! warning: unused variable: `black`
Sep 19 13:33:36.014 INFO kablam!   --> chapter5/src/main.rs:21:9
Sep 19 13:33:36.014 INFO kablam!    |
Sep 19 13:33:36.014 INFO kablam! 21 |     let black = Color(0, 0, 0);
Sep 19 13:33:36.014 INFO kablam!    |         ^^^^^ help: consider using `_black` instead
Sep 19 13:33:36.015 INFO kablam! 
Sep 19 13:33:36.074 INFO kablam! warning: field is never used: `sign_in_count`
Sep 19 13:33:36.074 INFO kablam!   --> chapter5/src/main.rs:53:5
Sep 19 13:33:36.074 INFO kablam!    |
Sep 19 13:33:36.074 INFO kablam! 53 |     sign_in_count: u64,
Sep 19 13:33:36.074 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^
Sep 19 13:33:36.074 INFO kablam!    |
Sep 19 13:33:36.074 INFO kablam!    = note: #[warn(dead_code)] on by default
Sep 19 13:33:36.074 INFO kablam! 
Sep 19 13:33:36.075 INFO kablam! warning: field is never used: `active`
Sep 19 13:33:36.075 INFO kablam!   --> chapter5/src/main.rs:54:5
Sep 19 13:33:36.075 INFO kablam!    |
Sep 19 13:33:36.075 INFO kablam! 54 |     active: bool,
Sep 19 13:33:36.075 INFO kablam!    |     ^^^^^^^^^^^^
Sep 19 13:33:36.075 INFO kablam! 
Sep 19 13:33:36.075 INFO kablam! warning: method is never used: `new`
Sep 19 13:33:36.075 INFO kablam!   --> chapter5/src/main.rs:67:5
Sep 19 13:33:36.075 INFO kablam!    |
Sep 19 13:33:36.075 INFO kablam! 67 |     fn new(email: String, username: String) -> User {
Sep 19 13:33:36.075 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 19 13:33:36.075 INFO kablam! 
Sep 19 13:33:36.075 INFO kablam! warning: method is never used: `square`
Sep 19 13:33:36.075 INFO kablam!   --> chapter5/src/main.rs:97:5
Sep 19 13:33:36.075 INFO kablam!    |
Sep 19 13:33:36.075 INFO kablam! 97 |     fn square(size: u32) -> Rectangle {
Sep 19 13:33:36.075 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 19 13:33:36.075 INFO kablam! 
Sep 19 13:33:36.075 INFO kablam! warning: method is never used: `widen`
Sep 19 13:33:36.075 INFO kablam!    --> chapter5/src/main.rs:105:5
Sep 19 13:33:36.075 INFO kablam!     |
Sep 19 13:33:36.075 INFO kablam! 105 |     fn widen(&mut self, n: u32) {
Sep 19 13:33:36.075 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 19 13:33:36.075 INFO kablam! 
Sep 19 13:33:36.075 INFO kablam! warning: method is never used: `takes_ownership`
Sep 19 13:33:36.075 INFO kablam!    --> chapter5/src/main.rs:109:5
Sep 19 13:33:36.075 INFO kablam!     |
Sep 19 13:33:36.075 INFO kablam! 109 |     fn takes_ownership(self) -> Rectangle {
Sep 19 13:33:36.075 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 19 13:33:36.075 INFO kablam! 
Sep 19 13:33:36.075 INFO kablam! warning: method is never used: `transform`
Sep 19 13:33:36.075 INFO kablam!    --> chapter5/src/main.rs:113:5
Sep 19 13:33:36.075 INFO kablam!     |
Sep 19 13:33:36.075 INFO kablam! 113 |     fn transform(self, w: u32, h: u32) -> Rectangle {
Sep 19 13:33:36.075 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 19 13:33:36.075 INFO kablam! 
Sep 19 13:33:36.257 INFO kablam! warning: unused variable: `some_u8_value`
Sep 19 13:33:36.257 INFO kablam!   --> chapter6/src/main.rs:29:9
Sep 19 13:33:36.257 INFO kablam!    |
Sep 19 13:33:36.257 INFO kablam! 29 |     let some_u8_value = Some(0u8);
Sep 19 13:33:36.257 INFO kablam!    |         ^^^^^^^^^^^^^ help: consider using `_some_u8_value` instead
Sep 19 13:33:36.259 INFO kablam!    |
Sep 19 13:33:36.259 INFO kablam!    = note: #[warn(unused_variables)] on by default
Sep 19 13:33:36.259 INFO kablam! 
Sep 19 13:33:36.362 INFO kablam! warning: variant is never constructed: `ChangeColor`
Sep 19 13:33:36.362 INFO kablam!   --> chapter6/src/main.rs:49:5
Sep 19 13:33:36.362 INFO kablam!    |
Sep 19 13:33:36.362 INFO kablam! 49 |     ChangeColor(i32, i32, i32),
Sep 19 13:33:36.362 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 19 13:33:36.362 INFO kablam!    |
Sep 19 13:33:36.362 INFO kablam!    = note: #[warn(dead_code)] on by default
Sep 19 13:33:36.362 INFO kablam! 
Sep 19 13:33:36.362 INFO kablam! warning: variant is never constructed: `Alabama`
Sep 19 13:33:36.362 INFO kablam!   --> chapter6/src/main.rs:59:5
Sep 19 13:33:36.362 INFO kablam!    |
Sep 19 13:33:36.362 INFO kablam! 59 |     Alabama,
Sep 19 13:33:36.362 INFO kablam!    |     ^^^^^^^
Sep 19 13:33:36.362 INFO kablam! 
Sep 19 13:33:36.362 INFO kablam! warning: variant is never constructed: `Nickel`
Sep 19 13:33:36.362 INFO kablam!   --> chapter6/src/main.rs:65:5
Sep 19 13:33:36.362 INFO kablam!    |
Sep 19 13:33:36.362 INFO kablam! 65 |     Nickel,
Sep 19 13:33:36.362 INFO kablam!    |     ^^^^^^
Sep 19 13:33:36.362 INFO kablam! 
Sep 19 13:33:36.362 INFO kablam! warning: variant is never constructed: `Dime`
Sep 19 13:33:36.362 INFO kablam!   --> chapter6/src/main.rs:66:5
Sep 19 13:33:36.362 INFO kablam!    |
Sep 19 13:33:36.362 INFO kablam! 66 |     Dime,
Sep 19 13:33:36.362 INFO kablam!    |     ^^^^
Sep 19 13:33:36.362 INFO kablam! 
Sep 19 13:33:36.542 INFO kablam! warning: unused variable: `some_u8_value`
Sep 19 13:33:36.542 INFO kablam!   --> chapter6/src/main.rs:29:9
Sep 19 13:33:36.542 INFO kablam!    |
Sep 19 13:33:36.542 INFO kablam! 29 |     let some_u8_value = Some(0u8);
Sep 19 13:33:36.542 INFO kablam!    |         ^^^^^^^^^^^^^ help: consider using `_some_u8_value` instead
Sep 19 13:33:36.542 INFO kablam!    |
Sep 19 13:33:36.542 INFO kablam!    = note: #[warn(unused_variables)] on by default
Sep 19 13:33:36.542 INFO kablam! 
Sep 19 13:33:36.606 INFO kablam! warning: unused variable: `user2`
Sep 19 13:33:36.606 INFO kablam!   --> chapter5/src/main.rs:12:9
Sep 19 13:33:36.606 INFO kablam!    |
Sep 19 13:33:36.606 INFO kablam! 12 |     let user2 = User {
Sep 19 13:33:36.606 INFO kablam!    |         ^^^^^ help: consider using `_user2` instead
Sep 19 13:33:36.606 INFO kablam!    |
Sep 19 13:33:36.606 INFO kablam!    = note: #[warn(unused_variables)] on by default
Sep 19 13:33:36.606 INFO kablam! 
Sep 19 13:33:36.606 INFO kablam! warning: unused variable: `black`
Sep 19 13:33:36.606 INFO kablam!   --> chapter5/src/main.rs:21:9
Sep 19 13:33:36.606 INFO kablam!    |
Sep 19 13:33:36.606 INFO kablam! 21 |     let black = Color(0, 0, 0);
Sep 19 13:33:36.606 INFO kablam!    |         ^^^^^ help: consider using `_black` instead
Sep 19 13:33:36.606 INFO kablam! 
Sep 19 13:33:36.674 INFO kablam! warning: variant is never constructed: `ChangeColor`
Sep 19 13:33:36.674 INFO kablam!   --> chapter6/src/main.rs:49:5
Sep 19 13:33:36.674 INFO kablam!    |
Sep 19 13:33:36.674 INFO kablam! 49 |     ChangeColor(i32, i32, i32),
Sep 19 13:33:36.674 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 19 13:33:36.674 INFO kablam!    |
Sep 19 13:33:36.674 INFO kablam!    = note: #[warn(dead_code)] on by default
Sep 19 13:33:36.674 INFO kablam! 
Sep 19 13:33:36.674 INFO kablam! warning: variant is never constructed: `Alabama`
Sep 19 13:33:36.674 INFO kablam!   --> chapter6/src/main.rs:59:5
Sep 19 13:33:36.674 INFO kablam!    |
Sep 19 13:33:36.674 INFO kablam! 59 |     Alabama,
Sep 19 13:33:36.674 INFO kablam!    |     ^^^^^^^
Sep 19 13:33:36.674 INFO kablam! 
Sep 19 13:33:36.674 INFO kablam! warning: variant is never constructed: `Nickel`
Sep 19 13:33:36.674 INFO kablam!   --> chapter6/src/main.rs:65:5
Sep 19 13:33:36.674 INFO kablam!    |
Sep 19 13:33:36.674 INFO kablam! 65 |     Nickel,
Sep 19 13:33:36.674 INFO kablam!    |     ^^^^^^
Sep 19 13:33:36.674 INFO kablam! 
Sep 19 13:33:36.674 INFO kablam! warning: variant is never constructed: `Dime`
Sep 19 13:33:36.674 INFO kablam!   --> chapter6/src/main.rs:66:5
Sep 19 13:33:36.674 INFO kablam!    |
Sep 19 13:33:36.674 INFO kablam! 66 |     Dime,
Sep 19 13:33:36.674 INFO kablam!    |     ^^^^
Sep 19 13:33:36.674 INFO kablam! 
Sep 19 13:33:36.702 INFO kablam! warning: field is never used: `sign_in_count`
Sep 19 13:33:36.702 INFO kablam!   --> chapter5/src/main.rs:53:5
Sep 19 13:33:36.702 INFO kablam!    |
Sep 19 13:33:36.702 INFO kablam! 53 |     sign_in_count: u64,
Sep 19 13:33:36.702 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^
Sep 19 13:33:36.702 INFO kablam!    |
Sep 19 13:33:36.702 INFO kablam!    = note: #[warn(dead_code)] on by default
Sep 19 13:33:36.702 INFO kablam! 
Sep 19 13:33:36.702 INFO kablam! warning: field is never used: `active`
Sep 19 13:33:36.702 INFO kablam!   --> chapter5/src/main.rs:54:5
Sep 19 13:33:36.702 INFO kablam!    |
Sep 19 13:33:36.702 INFO kablam! 54 |     active: bool,
Sep 19 13:33:36.702 INFO kablam!    |     ^^^^^^^^^^^^
Sep 19 13:33:36.702 INFO kablam! 
Sep 19 13:33:36.702 INFO kablam! warning: method is never used: `new`
Sep 19 13:33:36.702 INFO kablam!   --> chapter5/src/main.rs:67:5
Sep 19 13:33:36.702 INFO kablam!    |
Sep 19 13:33:36.702 INFO kablam! 67 |     fn new(email: String, username: String) -> User {
Sep 19 13:33:36.702 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 19 13:33:36.702 INFO kablam! 
Sep 19 13:33:36.702 INFO kablam! warning: method is never used: `square`
Sep 19 13:33:36.702 INFO kablam!   --> chapter5/src/main.rs:97:5
Sep 19 13:33:36.702 INFO kablam!    |
Sep 19 13:33:36.702 INFO kablam! 97 |     fn square(size: u32) -> Rectangle {
Sep 19 13:33:36.702 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 19 13:33:36.702 INFO kablam! 
Sep 19 13:33:36.702 INFO kablam! warning: method is never used: `widen`
Sep 19 13:33:36.702 INFO kablam!    --> chapter5/src/main.rs:105:5
Sep 19 13:33:36.702 INFO kablam!     |
Sep 19 13:33:36.702 INFO kablam! 105 |     fn widen(&mut self, n: u32) {
Sep 19 13:33:36.702 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 19 13:33:36.702 INFO kablam! 
Sep 19 13:33:36.702 INFO kablam! warning: method is never used: `takes_ownership`
Sep 19 13:33:36.702 INFO kablam!    --> chapter5/src/main.rs:109:5
Sep 19 13:33:36.702 INFO kablam!     |
Sep 19 13:33:36.702 INFO kablam! 109 |     fn takes_ownership(self) -> Rectangle {
Sep 19 13:33:36.703 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 19 13:33:36.703 INFO kablam! 
Sep 19 13:33:36.703 INFO kablam! warning: method is never used: `transform`
Sep 19 13:33:36.703 INFO kablam!    --> chapter5/src/main.rs:113:5
Sep 19 13:33:36.703 INFO kablam!     |
Sep 19 13:33:36.703 INFO kablam! 113 |     fn transform(self, w: u32, h: u32) -> Rectangle {
Sep 19 13:33:36.703 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 19 13:33:36.703 INFO kablam! 
Sep 19 13:33:36.874 INFO kablam! warning: unused variable: `s1`
Sep 19 13:33:36.874 INFO kablam!   --> chapter4/src/main.rs:75:9
Sep 19 13:33:36.874 INFO kablam!    |
Sep 19 13:33:36.874 INFO kablam! 75 |     let s1 = &mut s;
Sep 19 13:33:36.874 INFO kablam!    |         ^^ help: consider using `_s1` instead
Sep 19 13:33:36.893 INFO kablam!    |
Sep 19 13:33:36.893 INFO kablam!    = note: #[warn(unused_variables)] on by default
Sep 19 13:33:36.893 INFO kablam! 
Sep 19 13:33:36.893 INFO kablam! warning: unused variable: `r1`
Sep 19 13:33:36.893 INFO kablam!   --> chapter4/src/main.rs:86:13
Sep 19 13:33:36.893 INFO kablam!    |
Sep 19 13:33:36.893 INFO kablam! 86 |         let r1 = &mut s;
Sep 19 13:33:36.893 INFO kablam!    |             ^^ help: consider using `_r1` instead
Sep 19 13:33:36.895 INFO kablam! 
Sep 19 13:33:36.895 INFO kablam! warning: unused variable: `r2`
Sep 19 13:33:36.895 INFO kablam!   --> chapter4/src/main.rs:88:9
Sep 19 13:33:36.895 INFO kablam!    |
Sep 19 13:33:36.895 INFO kablam! 88 |     let r2 = &mut s;
Sep 19 13:33:36.895 INFO kablam!    |         ^^ help: consider using `_r2` instead
Sep 19 13:33:36.909 INFO kablam! 
Sep 19 13:33:36.909 INFO kablam! warning: unused variable: `r1`
Sep 19 13:33:36.909 INFO kablam!   --> chapter4/src/main.rs:92:9
Sep 19 13:33:36.909 INFO kablam!    |
Sep 19 13:33:36.909 INFO kablam! 92 |     let r1 = &s;
Sep 19 13:33:36.909 INFO kablam!    |         ^^ help: consider using `_r1` instead
Sep 19 13:33:36.909 INFO kablam! 
Sep 19 13:33:36.909 INFO kablam! warning: unused variable: `r2`
Sep 19 13:33:36.909 INFO kablam!   --> chapter4/src/main.rs:94:9
Sep 19 13:33:36.909 INFO kablam!    |
Sep 19 13:33:36.909 INFO kablam! 94 |     let r2 = &s;
Sep 19 13:33:36.909 INFO kablam!    |         ^^ help: consider using `_r2` instead
Sep 19 13:33:36.909 INFO kablam! 
Sep 19 13:33:36.962 INFO kablam! warning: field is never used: `part`
Sep 19 13:33:36.962 INFO kablam!  --> chapter10/src/main.rs:5:5
Sep 19 13:33:36.962 INFO kablam!   |
Sep 19 13:33:36.962 INFO kablam! 5 |     part: &'a str,
Sep 19 13:33:36.962 INFO kablam!   |     ^^^^^^^^^^^^^
Sep 19 13:33:36.962 INFO kablam!   |
Sep 19 13:33:36.962 INFO kablam!   = note: #[warn(dead_code)] on by default
Sep 19 13:33:36.962 INFO kablam! 
Sep 19 13:33:36.966 INFO kablam! warning: method is never used: `announce_and_return_part`
Sep 19 13:33:36.966 INFO kablam!   --> chapter10/src/main.rs:15:5
Sep 19 13:33:36.966 INFO kablam!    |
Sep 19 13:33:36.966 INFO kablam! 15 |     fn announce_and_return_part(&self, announcement: &str) -> &str {
Sep 19 13:33:36.966 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 19 13:33:36.966 INFO kablam! 
Sep 19 13:33:37.056 INFO kablam! warning: variable does not need to be mutable
Sep 19 13:33:37.056 INFO kablam!   --> chapter4/src/main.rs:90:9
Sep 19 13:33:37.056 INFO kablam!    |
Sep 19 13:33:37.056 INFO kablam! 90 |     let mut s = String::from("hello");
Sep 19 13:33:37.056 INFO kablam!    |         ----^
Sep 19 13:33:37.056 INFO kablam!    |         |
Sep 19 13:33:37.056 INFO kablam!    |         help: remove this `mut`
Sep 19 13:33:37.056 INFO kablam!    |
Sep 19 13:33:37.056 INFO kablam!    = note: #[warn(unused_mut)] on by default
Sep 19 13:33:37.056 INFO kablam! 
Sep 19 13:33:37.056 INFO kablam! warning: variable does not need to be mutable
Sep 19 13:33:37.056 INFO kablam!    --> chapter4/src/main.rs:108:9
Sep 19 13:33:37.056 INFO kablam!     |
Sep 19 13:33:37.056 INFO kablam! 108 |     let mut s = String::from("hello world");
Sep 19 13:33:37.056 INFO kablam!     |         ----^
Sep 19 13:33:37.056 INFO kablam!     |         |
Sep 19 13:33:37.056 INFO kablam!     |         help: remove this `mut`
Sep 19 13:33:37.056 INFO kablam! 
Sep 19 13:33:37.090 INFO kablam! warning: function is never used: `no_dangle`
Sep 19 13:33:37.090 INFO kablam!    --> chapter4/src/main.rs:168:1
Sep 19 13:33:37.090 INFO kablam!     |
Sep 19 13:33:37.090 INFO kablam! 168 | fn no_dangle() -> String {
Sep 19 13:33:37.090 INFO kablam!     | ^^^^^^^^^^^^^^^^^^^^^^^^
Sep 19 13:33:37.090 INFO kablam!     |
Sep 19 13:33:37.090 INFO kablam!     = note: #[warn(dead_code)] on by default
Sep 19 13:33:37.090 INFO kablam! 
Sep 19 13:33:37.370 INFO kablam! warning: unused variable: `s1`
Sep 19 13:33:37.370 INFO kablam!   --> chapter4/src/main.rs:75:9
Sep 19 13:33:37.370 INFO kablam!    |
Sep 19 13:33:37.370 INFO kablam! 75 |     let s1 = &mut s;
Sep 19 13:33:37.370 INFO kablam!    |         ^^ help: consider using `_s1` instead
Sep 19 13:33:37.418 INFO kablam!    |
Sep 19 13:33:37.418 INFO kablam!    = note: #[warn(unused_variables)] on by default
Sep 19 13:33:37.418 INFO kablam! 
Sep 19 13:33:37.418 INFO kablam! warning: unused variable: `r1`
Sep 19 13:33:37.418 INFO kablam!   --> chapter4/src/main.rs:86:13
Sep 19 13:33:37.418 INFO kablam!    |
Sep 19 13:33:37.418 INFO kablam! 86 |         let r1 = &mut s;
Sep 19 13:33:37.418 INFO kablam!    |             ^^ help: consider using `_r1` instead
Sep 19 13:33:37.418 INFO kablam! 
Sep 19 13:33:37.418 INFO kablam! warning: unused variable: `r2`
Sep 19 13:33:37.418 INFO kablam!   --> chapter4/src/main.rs:88:9
Sep 19 13:33:37.418 INFO kablam!    |
Sep 19 13:33:37.418 INFO kablam! 88 |     let r2 = &mut s;
Sep 19 13:33:37.418 INFO kablam!    |         ^^ help: consider using `_r2` instead
Sep 19 13:33:37.418 INFO kablam! 
Sep 19 13:33:37.418 INFO kablam! warning: unused variable: `r1`
Sep 19 13:33:37.418 INFO kablam!   --> chapter4/src/main.rs:92:9
Sep 19 13:33:37.418 INFO kablam!    |
Sep 19 13:33:37.418 INFO kablam! 92 |     let r1 = &s;
Sep 19 13:33:37.418 INFO kablam!    |         ^^ help: consider using `_r1` instead
Sep 19 13:33:37.418 INFO kablam! 
Sep 19 13:33:37.418 INFO kablam! warning: unused variable: `r2`
Sep 19 13:33:37.418 INFO kablam!   --> chapter4/src/main.rs:94:9
Sep 19 13:33:37.418 INFO kablam!    |
Sep 19 13:33:37.418 INFO kablam! 94 |     let r2 = &s;
Sep 19 13:33:37.418 INFO kablam!    |         ^^ help: consider using `_r2` instead
Sep 19 13:33:37.418 INFO kablam! 
Sep 19 13:33:37.494 INFO kablam! warning: variable does not need to be mutable
Sep 19 13:33:37.494 INFO kablam!   --> chapter4/src/main.rs:90:9
Sep 19 13:33:37.494 INFO kablam!    |
Sep 19 13:33:37.494 INFO kablam! 90 |     let mut s = String::from("hello");
Sep 19 13:33:37.494 INFO kablam!    |         ----^
Sep 19 13:33:37.494 INFO kablam!    |         |
Sep 19 13:33:37.494 INFO kablam!    |         help: remove this `mut`
Sep 19 13:33:37.513 INFO kablam!    |
Sep 19 13:33:37.513 INFO kablam!    = note: #[warn(unused_mut)] on by default
Sep 19 13:33:37.513 INFO kablam! 
Sep 19 13:33:37.513 INFO kablam! warning: variable does not need to be mutable
Sep 19 13:33:37.513 INFO kablam!    --> chapter4/src/main.rs:108:9
Sep 19 13:33:37.513 INFO kablam!     |
Sep 19 13:33:37.513 INFO kablam! 108 |     let mut s = String::from("hello world");
Sep 19 13:33:37.513 INFO kablam!     |         ----^
Sep 19 13:33:37.513 INFO kablam!     |         |
Sep 19 13:33:37.513 INFO kablam!     |         help: remove this `mut`
Sep 19 13:33:37.513 INFO kablam! 
Sep 19 13:33:37.534 INFO kablam! warning: function is never used: `no_dangle`
Sep 19 13:33:37.534 INFO kablam!    --> chapter4/src/main.rs:168:1
Sep 19 13:33:37.534 INFO kablam!     |
Sep 19 13:33:37.534 INFO kablam! 168 | fn no_dangle() -> String {
Sep 19 13:33:37.534 INFO kablam!     | ^^^^^^^^^^^^^^^^^^^^^^^^
Sep 19 13:33:37.562 INFO kablam!     |
Sep 19 13:33:37.562 INFO kablam!     = note: #[warn(dead_code)] on by default
Sep 19 13:33:37.562 INFO kablam! 
Sep 19 13:33:37.654 INFO kablam! warning: variable does not need to be mutable
Sep 19 13:33:37.654 INFO kablam!   --> chapter8/src/main.rs:26:9
Sep 19 13:33:37.654 INFO kablam!    |
Sep 19 13:33:37.654 INFO kablam! 26 |     let mut v = vec![1, 2, 3, 4, 5];
Sep 19 13:33:37.654 INFO kablam!    |         ----^
Sep 19 13:33:37.654 INFO kablam!    |         |
Sep 19 13:33:37.654 INFO kablam!    |         help: remove this `mut`
Sep 19 13:33:37.654 INFO kablam!    |
Sep 19 13:33:37.654 INFO kablam!    = note: #[warn(unused_mut)] on by default
Sep 19 13:33:37.654 INFO kablam! 
Sep 19 13:33:37.978 INFO kablam! warning: variable does not need to be mutable
Sep 19 13:33:37.978 INFO kablam!   --> chapter8/src/main.rs:26:9
Sep 19 13:33:37.978 INFO kablam!    |
Sep 19 13:33:37.978 INFO kablam! 26 |     let mut v = vec![1, 2, 3, 4, 5];
Sep 19 13:33:37.978 INFO kablam!    |         ----^
Sep 19 13:33:37.978 INFO kablam!    |         |
Sep 19 13:33:37.978 INFO kablam!    |         help: remove this `mut`
Sep 19 13:33:37.990 INFO kablam!    |
Sep 19 13:33:37.990 INFO kablam!    = note: #[warn(unused_mut)] on by default
Sep 19 13:33:37.990 INFO kablam! 
Sep 19 13:33:38.067 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 3.07s
Sep 19 13:33:38.086 INFO kablam! su: No module specific data is present
Sep 19 13:33:39.131 INFO running `"docker" "rm" "-f" "3d187f1565f68d589b6d93866861eb2de4559080129776b2efd92abbbece84ec"`
Sep 19 13:33:39.247 INFO blam! 3d187f1565f68d589b6d93866861eb2de4559080129776b2efd92abbbece84ec