Aug 31 19:03:20.556 INFO checking yuya373/trpl against try#aa245a5862056b681d2ccdb178f58891108cd3a6 for pr-53831
Aug 31 19:03:20.556 INFO running: cargo +aa245a5862056b681d2ccdb178f58891108cd3a6-alt check --frozen --all --all-targets
Aug 31 19:03:20.556 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-0/pr-53831/try#aa245a5862056b681d2ccdb178f58891108cd3a6:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53831/worker-0/try#aa245a5862056b681d2ccdb178f58891108cd3a6:/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=500" "-e" "CMD=cargo +aa245a5862056b681d2ccdb178f58891108cd3a6-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Aug 31 19:03:20.742 INFO blam! c731659bd6102b684081fff6bc5e5920c7659fa1b02a7e883d56bf1a6f1ee8e1
Aug 31 19:03:20.744 INFO running `"docker" "start" "-a" "c731659bd6102b684081fff6bc5e5920c7659fa1b02a7e883d56bf1a6f1ee8e1"`
Aug 31 19:03:21.411 INFO kablam!     Checking chapter7 v0.1.0 (file:///source/chapter7)
Aug 31 19:03:21.412 INFO kablam!     Checking chapter8 v0.1.0 (file:///source/chapter8)
Aug 31 19:03:21.413 INFO kablam!     Checking chapter4 v0.1.0 (file:///source/chapter4)
Aug 31 19:03:21.416 INFO kablam!     Checking chapter5 v0.1.0 (file:///source/chapter5)
Aug 31 19:03:21.417 INFO kablam!     Checking chapter6 v0.1.0 (file:///source/chapter6)
Aug 31 19:03:21.418 INFO kablam!     Checking chapter9 v0.1.0 (file:///source/chapter9)
Aug 31 19:03:21.634 INFO kablam!     Checking chapter10 v0.1.0 (file:///source/chapter10)
Aug 31 19:03:21.731 INFO kablam! warning: unused variable: `some_u8_value`
Aug 31 19:03:21.732 INFO kablam!   --> chapter6/src/main.rs:29:9
Aug 31 19:03:21.732 INFO kablam!    |
Aug 31 19:03:21.732 INFO kablam! 29 |     let some_u8_value = Some(0u8);
Aug 31 19:03:21.732 INFO kablam!    |         ^^^^^^^^^^^^^ help: consider using `_some_u8_value` instead
Aug 31 19:03:21.732 INFO kablam!    |
Aug 31 19:03:21.733 INFO kablam!    = note: #[warn(unused_variables)] on by default
Aug 31 19:03:21.733 INFO kablam! 
Aug 31 19:03:21.762 INFO kablam! warning: variant is never constructed: `ChangeColor`
Aug 31 19:03:21.762 INFO kablam!   --> chapter6/src/main.rs:49:5
Aug 31 19:03:21.762 INFO kablam!    |
Aug 31 19:03:21.762 INFO kablam! 49 |     ChangeColor(i32, i32, i32),
Aug 31 19:03:21.762 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 31 19:03:21.763 INFO kablam!    |
Aug 31 19:03:21.763 INFO kablam!    = note: #[warn(dead_code)] on by default
Aug 31 19:03:21.763 INFO kablam! 
Aug 31 19:03:21.763 INFO kablam! warning: variant is never constructed: `Alabama`
Aug 31 19:03:21.763 INFO kablam!   --> chapter6/src/main.rs:59:5
Aug 31 19:03:21.763 INFO kablam!    |
Aug 31 19:03:21.763 INFO kablam! 59 |     Alabama,
Aug 31 19:03:21.763 INFO kablam!    |     ^^^^^^^
Aug 31 19:03:21.763 INFO kablam! 
Aug 31 19:03:21.763 INFO kablam! warning: variant is never constructed: `Nickel`
Aug 31 19:03:21.763 INFO kablam!   --> chapter6/src/main.rs:65:5
Aug 31 19:03:21.763 INFO kablam!    |
Aug 31 19:03:21.763 INFO kablam! 65 |     Nickel,
Aug 31 19:03:21.763 INFO kablam!    |     ^^^^^^
Aug 31 19:03:21.763 INFO kablam! 
Aug 31 19:03:21.764 INFO kablam! warning: variant is never constructed: `Dime`
Aug 31 19:03:21.764 INFO kablam!   --> chapter6/src/main.rs:66:5
Aug 31 19:03:21.764 INFO kablam!    |
Aug 31 19:03:21.764 INFO kablam! 66 |     Dime,
Aug 31 19:03:21.764 INFO kablam!    |     ^^^^
Aug 31 19:03:21.764 INFO kablam! 
Aug 31 19:03:21.770 INFO kablam! warning: unused variable: `user2`
Aug 31 19:03:21.770 INFO kablam!   --> chapter5/src/main.rs:12:9
Aug 31 19:03:21.770 INFO kablam!    |
Aug 31 19:03:21.770 INFO kablam! 12 |     let user2 = User {
Aug 31 19:03:21.770 INFO kablam!    |         ^^^^^ help: consider using `_user2` instead
Aug 31 19:03:21.770 INFO kablam!    |
Aug 31 19:03:21.770 INFO kablam!    = note: #[warn(unused_variables)] on by default
Aug 31 19:03:21.770 INFO kablam! 
Aug 31 19:03:21.770 INFO kablam! warning: unused variable: `black`
Aug 31 19:03:21.770 INFO kablam!   --> chapter5/src/main.rs:21:9
Aug 31 19:03:21.770 INFO kablam!    |
Aug 31 19:03:21.771 INFO kablam! 21 |     let black = Color(0, 0, 0);
Aug 31 19:03:21.771 INFO kablam!    |         ^^^^^ help: consider using `_black` instead
Aug 31 19:03:21.771 INFO kablam! 
Aug 31 19:03:21.792 INFO kablam! warning: field is never used: `sign_in_count`
Aug 31 19:03:21.792 INFO kablam!   --> chapter5/src/main.rs:53:5
Aug 31 19:03:21.792 INFO kablam!    |
Aug 31 19:03:21.792 INFO kablam! 53 |     sign_in_count: u64,
Aug 31 19:03:21.792 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^
Aug 31 19:03:21.792 INFO kablam!    |
Aug 31 19:03:21.792 INFO kablam!    = note: #[warn(dead_code)] on by default
Aug 31 19:03:21.792 INFO kablam! 
Aug 31 19:03:21.793 INFO kablam! warning: field is never used: `active`
Aug 31 19:03:21.793 INFO kablam!   --> chapter5/src/main.rs:54:5
Aug 31 19:03:21.793 INFO kablam!    |
Aug 31 19:03:21.793 INFO kablam! 54 |     active: bool,
Aug 31 19:03:21.793 INFO kablam!    |     ^^^^^^^^^^^^
Aug 31 19:03:21.793 INFO kablam! 
Aug 31 19:03:21.793 INFO kablam! warning: method is never used: `new`
Aug 31 19:03:21.793 INFO kablam!   --> chapter5/src/main.rs:67:5
Aug 31 19:03:21.793 INFO kablam!    |
Aug 31 19:03:21.793 INFO kablam! 67 |     fn new(email: String, username: String) -> User {
Aug 31 19:03:21.793 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 31 19:03:21.793 INFO kablam! 
Aug 31 19:03:21.793 INFO kablam! warning: method is never used: `square`
Aug 31 19:03:21.793 INFO kablam!   --> chapter5/src/main.rs:97:5
Aug 31 19:03:21.793 INFO kablam!    |
Aug 31 19:03:21.793 INFO kablam! 97 |     fn square(size: u32) -> Rectangle {
Aug 31 19:03:21.793 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 31 19:03:21.793 INFO kablam! 
Aug 31 19:03:21.793 INFO kablam! warning: method is never used: `widen`
Aug 31 19:03:21.793 INFO kablam!    --> chapter5/src/main.rs:105:5
Aug 31 19:03:21.793 INFO kablam!     |
Aug 31 19:03:21.793 INFO kablam! 105 |     fn widen(&mut self, n: u32) {
Aug 31 19:03:21.794 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 31 19:03:21.794 INFO kablam! 
Aug 31 19:03:21.794 INFO kablam! warning: method is never used: `takes_ownership`
Aug 31 19:03:21.794 INFO kablam!    --> chapter5/src/main.rs:109:5
Aug 31 19:03:21.794 INFO kablam!     |
Aug 31 19:03:21.794 INFO kablam! 109 |     fn takes_ownership(self) -> Rectangle {
Aug 31 19:03:21.794 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 31 19:03:21.794 INFO kablam! 
Aug 31 19:03:21.794 INFO kablam! warning: method is never used: `transform`
Aug 31 19:03:21.794 INFO kablam!    --> chapter5/src/main.rs:113:5
Aug 31 19:03:21.794 INFO kablam!     |
Aug 31 19:03:21.794 INFO kablam! 113 |     fn transform(self, w: u32, h: u32) -> Rectangle {
Aug 31 19:03:21.794 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 31 19:03:21.794 INFO kablam! 
Aug 31 19:03:21.905 INFO kablam! warning: unused variable: `user2`
Aug 31 19:03:21.905 INFO kablam!   --> chapter5/src/main.rs:12:9
Aug 31 19:03:21.905 INFO kablam!    |
Aug 31 19:03:21.905 INFO kablam! 12 |     let user2 = User {
Aug 31 19:03:21.905 INFO kablam!    |         ^^^^^ help: consider using `_user2` instead
Aug 31 19:03:21.905 INFO kablam!    |
Aug 31 19:03:21.906 INFO kablam!    = note: #[warn(unused_variables)] on by default
Aug 31 19:03:21.906 INFO kablam! 
Aug 31 19:03:21.906 INFO kablam! warning: unused variable: `black`
Aug 31 19:03:21.906 INFO kablam!   --> chapter5/src/main.rs:21:9
Aug 31 19:03:21.906 INFO kablam!    |
Aug 31 19:03:21.906 INFO kablam! 21 |     let black = Color(0, 0, 0);
Aug 31 19:03:21.907 INFO kablam!    |         ^^^^^ help: consider using `_black` instead
Aug 31 19:03:21.907 INFO kablam! 
Aug 31 19:03:21.928 INFO kablam! warning: field is never used: `sign_in_count`
Aug 31 19:03:21.928 INFO kablam!   --> chapter5/src/main.rs:53:5
Aug 31 19:03:21.928 INFO kablam!    |
Aug 31 19:03:21.928 INFO kablam! 53 |     sign_in_count: u64,
Aug 31 19:03:21.928 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^
Aug 31 19:03:21.928 INFO kablam! warning: field is never used: `part`
Aug 31 19:03:21.928 INFO kablam!  --> chapter10/src/main.rs:5:5
Aug 31 19:03:21.928 INFO kablam!   |
Aug 31 19:03:21.928 INFO kablam! 5 |     part: &'a str,
Aug 31 19:03:21.928 INFO kablam!   |     ^^^^^^^^^^^^^
Aug 31 19:03:21.928 INFO kablam!   |
Aug 31 19:03:21.929 INFO kablam!   = note: #[warn(dead_code)] on by default
Aug 31 19:03:21.929 INFO kablam! 
Aug 31 19:03:21.929 INFO kablam! warning: method is never used: `announce_and_return_part`
Aug 31 19:03:21.929 INFO kablam!   --> chapter10/src/main.rs:15:5
Aug 31 19:03:21.929 INFO kablam!    |
Aug 31 19:03:21.929 INFO kablam! 15 |     fn announce_and_return_part(&self, announcement: &str) -> &str {
Aug 31 19:03:21.929 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 31 19:03:21.929 INFO kablam! 
Aug 31 19:03:21.929 INFO kablam!    |
Aug 31 19:03:21.930 INFO kablam!    = note: #[warn(dead_code)] on by default
Aug 31 19:03:21.930 INFO kablam! 
Aug 31 19:03:21.930 INFO kablam! warning: field is never used: `active`
Aug 31 19:03:21.930 INFO kablam!   --> chapter5/src/main.rs:54:5
Aug 31 19:03:21.930 INFO kablam!    |
Aug 31 19:03:21.930 INFO kablam! 54 |     active: bool,
Aug 31 19:03:21.930 INFO kablam!    |     ^^^^^^^^^^^^
Aug 31 19:03:21.931 INFO kablam! 
Aug 31 19:03:21.931 INFO kablam! warning: method is never used: `new`
Aug 31 19:03:21.931 INFO kablam!   --> chapter5/src/main.rs:67:5
Aug 31 19:03:21.931 INFO kablam!    |
Aug 31 19:03:21.931 INFO kablam! 67 |     fn new(email: String, username: String) -> User {
Aug 31 19:03:21.931 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 31 19:03:21.932 INFO kablam! 
Aug 31 19:03:21.932 INFO kablam! warning: method is never used: `square`
Aug 31 19:03:21.932 INFO kablam!   --> chapter5/src/main.rs:97:5
Aug 31 19:03:21.932 INFO kablam!    |
Aug 31 19:03:21.932 INFO kablam! 97 |     fn square(size: u32) -> Rectangle {
Aug 31 19:03:21.932 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 31 19:03:21.933 INFO kablam! 
Aug 31 19:03:21.933 INFO kablam! warning: method is never used: `widen`
Aug 31 19:03:21.933 INFO kablam!    --> chapter5/src/main.rs:105:5
Aug 31 19:03:21.933 INFO kablam!     |
Aug 31 19:03:21.933 INFO kablam! 105 |     fn widen(&mut self, n: u32) {
Aug 31 19:03:21.933 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 31 19:03:21.934 INFO kablam! 
Aug 31 19:03:21.934 INFO kablam! warning: method is never used: `takes_ownership`
Aug 31 19:03:21.934 INFO kablam!    --> chapter5/src/main.rs:109:5
Aug 31 19:03:21.934 INFO kablam!     |
Aug 31 19:03:21.934 INFO kablam! 109 |     fn takes_ownership(self) -> Rectangle {
Aug 31 19:03:21.934 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 31 19:03:21.935 INFO kablam! 
Aug 31 19:03:21.935 INFO kablam! warning: method is never used: `transform`
Aug 31 19:03:21.935 INFO kablam!    --> chapter5/src/main.rs:113:5
Aug 31 19:03:21.935 INFO kablam!     |
Aug 31 19:03:21.935 INFO kablam! 113 |     fn transform(self, w: u32, h: u32) -> Rectangle {
Aug 31 19:03:21.935 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 31 19:03:21.936 INFO kablam! 
Aug 31 19:03:21.972 INFO kablam! warning: field is never used: `part`
Aug 31 19:03:21.972 INFO kablam!  --> chapter10/src/main.rs:5:5
Aug 31 19:03:21.972 INFO kablam!   |
Aug 31 19:03:21.972 INFO kablam! 5 |     part: &'a str,
Aug 31 19:03:21.972 INFO kablam!   |     ^^^^^^^^^^^^^
Aug 31 19:03:21.972 INFO kablam!   |
Aug 31 19:03:21.972 INFO kablam!   = note: #[warn(dead_code)] on by default
Aug 31 19:03:21.972 INFO kablam! 
Aug 31 19:03:21.973 INFO kablam! warning: method is never used: `announce_and_return_part`
Aug 31 19:03:21.973 INFO kablam!   --> chapter10/src/main.rs:15:5
Aug 31 19:03:21.973 INFO kablam!    |
Aug 31 19:03:21.973 INFO kablam! 15 |     fn announce_and_return_part(&self, announcement: &str) -> &str {
Aug 31 19:03:21.973 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 31 19:03:21.973 INFO kablam! 
Aug 31 19:03:22.086 INFO kablam! warning: unused variable: `s1`
Aug 31 19:03:22.086 INFO kablam!   --> chapter4/src/main.rs:75:9
Aug 31 19:03:22.086 INFO kablam!    |
Aug 31 19:03:22.086 INFO kablam! 75 |     let s1 = &mut s;
Aug 31 19:03:22.086 INFO kablam!    |         ^^ help: consider using `_s1` instead
Aug 31 19:03:22.089 INFO kablam! warning: variable does not need to be mutable
Aug 31 19:03:22.089 INFO kablam!   --> chapter8/src/main.rs:26:9
Aug 31 19:03:22.089 INFO kablam!    |
Aug 31 19:03:22.089 INFO kablam! 26 |     let mut v = vec![1, 2, 3, 4, 5];
Aug 31 19:03:22.089 INFO kablam!    |         ----^
Aug 31 19:03:22.089 INFO kablam!    |         |
Aug 31 19:03:22.089 INFO kablam!    |         help: remove this `mut`
Aug 31 19:03:22.090 INFO kablam!    |
Aug 31 19:03:22.090 INFO kablam!    = note: #[warn(unused_mut)] on by default
Aug 31 19:03:22.090 INFO kablam! 
Aug 31 19:03:22.100 INFO kablam!    |
Aug 31 19:03:22.100 INFO kablam!    = note: #[warn(unused_variables)] on by default
Aug 31 19:03:22.100 INFO kablam! 
Aug 31 19:03:22.101 INFO kablam! warning: unused variable: `r1`
Aug 31 19:03:22.101 INFO kablam!   --> chapter4/src/main.rs:86:13
Aug 31 19:03:22.101 INFO kablam!    |
Aug 31 19:03:22.101 INFO kablam! 86 |         let r1 = &mut s;
Aug 31 19:03:22.101 INFO kablam!    |             ^^ help: consider using `_r1` instead
Aug 31 19:03:22.101 INFO kablam! 
Aug 31 19:03:22.101 INFO kablam! warning: unused variable: `r2`
Aug 31 19:03:22.101 INFO kablam!   --> chapter4/src/main.rs:88:9
Aug 31 19:03:22.101 INFO kablam!    |
Aug 31 19:03:22.101 INFO kablam! 88 |     let r2 = &mut s;
Aug 31 19:03:22.101 INFO kablam!    |         ^^ help: consider using `_r2` instead
Aug 31 19:03:22.102 INFO kablam! 
Aug 31 19:03:22.102 INFO kablam! warning: unused variable: `r1`
Aug 31 19:03:22.102 INFO kablam!   --> chapter4/src/main.rs:92:9
Aug 31 19:03:22.102 INFO kablam!    |
Aug 31 19:03:22.102 INFO kablam! 92 |     let r1 = &s;
Aug 31 19:03:22.102 INFO kablam!    |         ^^ help: consider using `_r1` instead
Aug 31 19:03:22.102 INFO kablam! 
Aug 31 19:03:22.102 INFO kablam! warning: unused variable: `r2`
Aug 31 19:03:22.102 INFO kablam!   --> chapter4/src/main.rs:94:9
Aug 31 19:03:22.102 INFO kablam!    |
Aug 31 19:03:22.102 INFO kablam! 94 |     let r2 = &s;
Aug 31 19:03:22.102 INFO kablam!    |         ^^ help: consider using `_r2` instead
Aug 31 19:03:22.102 INFO kablam! 
Aug 31 19:03:22.165 INFO kablam! warning: unused variable: `s1`
Aug 31 19:03:22.166 INFO kablam!   --> chapter4/src/main.rs:75:9
Aug 31 19:03:22.166 INFO kablam!    |
Aug 31 19:03:22.166 INFO kablam! 75 |     let s1 = &mut s;
Aug 31 19:03:22.166 INFO kablam!    |         ^^ help: consider using `_s1` instead
Aug 31 19:03:22.166 INFO kablam!    |
Aug 31 19:03:22.166 INFO kablam!    = note: #[warn(unused_variables)] on by default
Aug 31 19:03:22.166 INFO kablam! 
Aug 31 19:03:22.166 INFO kablam! warning: unused variable: `r1`
Aug 31 19:03:22.166 INFO kablam!   --> chapter4/src/main.rs:86:13
Aug 31 19:03:22.166 INFO kablam!    |
Aug 31 19:03:22.166 INFO kablam! 86 |         let r1 = &mut s;
Aug 31 19:03:22.166 INFO kablam!    |             ^^ help: consider using `_r1` instead
Aug 31 19:03:22.166 INFO kablam! 
Aug 31 19:03:22.166 INFO kablam! warning: unused variable: `r2`
Aug 31 19:03:22.166 INFO kablam!   --> chapter4/src/main.rs:88:9
Aug 31 19:03:22.166 INFO kablam!    |
Aug 31 19:03:22.166 INFO kablam! 88 |     let r2 = &mut s;
Aug 31 19:03:22.166 INFO kablam!    |         ^^ help: consider using `_r2` instead
Aug 31 19:03:22.166 INFO kablam! 
Aug 31 19:03:22.166 INFO kablam! warning: unused variable: `r1`
Aug 31 19:03:22.166 INFO kablam!   --> chapter4/src/main.rs:92:9
Aug 31 19:03:22.166 INFO kablam!    |
Aug 31 19:03:22.166 INFO kablam! 92 |     let r1 = &s;
Aug 31 19:03:22.166 INFO kablam!    |         ^^ help: consider using `_r1` instead
Aug 31 19:03:22.166 INFO kablam! 
Aug 31 19:03:22.167 INFO kablam! warning: unused variable: `r2`
Aug 31 19:03:22.167 INFO kablam!   --> chapter4/src/main.rs:94:9
Aug 31 19:03:22.167 INFO kablam!    |
Aug 31 19:03:22.167 INFO kablam! 94 |     let r2 = &s;
Aug 31 19:03:22.167 INFO kablam!    |         ^^ help: consider using `_r2` instead
Aug 31 19:03:22.167 INFO kablam! 
Aug 31 19:03:22.181 INFO kablam! warning: variable does not need to be mutable
Aug 31 19:03:22.181 INFO kablam!   --> chapter4/src/main.rs:90:9
Aug 31 19:03:22.181 INFO kablam!    |
Aug 31 19:03:22.181 INFO kablam! 90 |     let mut s = String::from("hello");
Aug 31 19:03:22.181 INFO kablam!    |         ----^
Aug 31 19:03:22.181 INFO kablam!    |         |
Aug 31 19:03:22.181 INFO kablam!    |         help: remove this `mut`
Aug 31 19:03:22.181 INFO kablam!    |
Aug 31 19:03:22.181 INFO kablam!    = note: #[warn(unused_mut)] on by default
Aug 31 19:03:22.182 INFO kablam! 
Aug 31 19:03:22.182 INFO kablam! warning: variable does not need to be mutable
Aug 31 19:03:22.182 INFO kablam!    --> chapter4/src/main.rs:108:9
Aug 31 19:03:22.182 INFO kablam!     |
Aug 31 19:03:22.182 INFO kablam! 108 |     let mut s = String::from("hello world");
Aug 31 19:03:22.182 INFO kablam!     |         ----^
Aug 31 19:03:22.182 INFO kablam!     |         |
Aug 31 19:03:22.182 INFO kablam!     |         help: remove this `mut`
Aug 31 19:03:22.182 INFO kablam! 
Aug 31 19:03:22.193 INFO kablam! warning: variable does not need to be mutable
Aug 31 19:03:22.193 INFO kablam!   --> chapter4/src/main.rs:90:9
Aug 31 19:03:22.193 INFO kablam!    |
Aug 31 19:03:22.193 INFO kablam! 90 |     let mut s = String::from("hello");
Aug 31 19:03:22.193 INFO kablam!    |         ----^
Aug 31 19:03:22.193 INFO kablam!    |         |
Aug 31 19:03:22.193 INFO kablam!    |         help: remove this `mut`
Aug 31 19:03:22.193 INFO kablam!    |
Aug 31 19:03:22.193 INFO kablam!    = note: #[warn(unused_mut)] on by default
Aug 31 19:03:22.193 INFO kablam! 
Aug 31 19:03:22.193 INFO kablam! warning: variable does not need to be mutable
Aug 31 19:03:22.194 INFO kablam!    --> chapter4/src/main.rs:108:9
Aug 31 19:03:22.194 INFO kablam!     |
Aug 31 19:03:22.194 INFO kablam! 108 |     let mut s = String::from("hello world");
Aug 31 19:03:22.194 INFO kablam!     |         ----^
Aug 31 19:03:22.194 INFO kablam!     |         |
Aug 31 19:03:22.194 INFO kablam!     |         help: remove this `mut`
Aug 31 19:03:22.194 INFO kablam! 
Aug 31 19:03:22.203 INFO kablam! warning: function is never used: `no_dangle`
Aug 31 19:03:22.204 INFO kablam!    --> chapter4/src/main.rs:168:1
Aug 31 19:03:22.204 INFO kablam!     |
Aug 31 19:03:22.204 INFO kablam! 168 | fn no_dangle() -> String {
Aug 31 19:03:22.204 INFO kablam!     | ^^^^^^^^^^^^^^^^^^^^^^^^
Aug 31 19:03:22.204 INFO kablam!     |
Aug 31 19:03:22.204 INFO kablam!     = note: #[warn(dead_code)] on by default
Aug 31 19:03:22.204 INFO kablam! 
Aug 31 19:03:22.211 INFO kablam! warning: function is never used: `no_dangle`
Aug 31 19:03:22.211 INFO kablam!    --> chapter4/src/main.rs:168:1
Aug 31 19:03:22.211 INFO kablam!     |
Aug 31 19:03:22.211 INFO kablam! 168 | fn no_dangle() -> String {
Aug 31 19:03:22.211 INFO kablam!     | ^^^^^^^^^^^^^^^^^^^^^^^^
Aug 31 19:03:22.211 INFO kablam!     |
Aug 31 19:03:22.211 INFO kablam!     = note: #[warn(dead_code)] on by default
Aug 31 19:03:22.211 INFO kablam! 
Aug 31 19:03:22.388 INFO kablam! warning: unused variable: `some_u8_value`
Aug 31 19:03:22.388 INFO kablam!   --> chapter6/src/main.rs:29:9
Aug 31 19:03:22.388 INFO kablam!    |
Aug 31 19:03:22.388 INFO kablam! 29 |     let some_u8_value = Some(0u8);
Aug 31 19:03:22.388 INFO kablam!    |         ^^^^^^^^^^^^^ help: consider using `_some_u8_value` instead
Aug 31 19:03:22.388 INFO kablam!    |
Aug 31 19:03:22.388 INFO kablam!    = note: #[warn(unused_variables)] on by default
Aug 31 19:03:22.388 INFO kablam! 
Aug 31 19:03:22.425 INFO kablam! warning: variant is never constructed: `ChangeColor`
Aug 31 19:03:22.425 INFO kablam!   --> chapter6/src/main.rs:49:5
Aug 31 19:03:22.425 INFO kablam!    |
Aug 31 19:03:22.425 INFO kablam! 49 |     ChangeColor(i32, i32, i32),
Aug 31 19:03:22.425 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 31 19:03:22.425 INFO kablam!    |
Aug 31 19:03:22.425 INFO kablam!    = note: #[warn(dead_code)] on by default
Aug 31 19:03:22.425 INFO kablam! 
Aug 31 19:03:22.425 INFO kablam! warning: variant is never constructed: `Alabama`
Aug 31 19:03:22.425 INFO kablam!   --> chapter6/src/main.rs:59:5
Aug 31 19:03:22.425 INFO kablam!    |
Aug 31 19:03:22.425 INFO kablam! 59 |     Alabama,
Aug 31 19:03:22.425 INFO kablam!    |     ^^^^^^^
Aug 31 19:03:22.425 INFO kablam! 
Aug 31 19:03:22.425 INFO kablam! warning: variant is never constructed: `Nickel`
Aug 31 19:03:22.425 INFO kablam!   --> chapter6/src/main.rs:65:5
Aug 31 19:03:22.426 INFO kablam!    |
Aug 31 19:03:22.426 INFO kablam! 65 |     Nickel,
Aug 31 19:03:22.426 INFO kablam!    |     ^^^^^^
Aug 31 19:03:22.426 INFO kablam! 
Aug 31 19:03:22.426 INFO kablam! warning: variant is never constructed: `Dime`
Aug 31 19:03:22.426 INFO kablam!   --> chapter6/src/main.rs:66:5
Aug 31 19:03:22.426 INFO kablam!    |
Aug 31 19:03:22.426 INFO kablam! 66 |     Dime,
Aug 31 19:03:22.426 INFO kablam!    |     ^^^^
Aug 31 19:03:22.426 INFO kablam! 
Aug 31 19:03:22.647 INFO kablam! warning: variable does not need to be mutable
Aug 31 19:03:22.647 INFO kablam!   --> chapter8/src/main.rs:26:9
Aug 31 19:03:22.647 INFO kablam!    |
Aug 31 19:03:22.647 INFO kablam! 26 |     let mut v = vec![1, 2, 3, 4, 5];
Aug 31 19:03:22.647 INFO kablam!    |         ----^
Aug 31 19:03:22.647 INFO kablam!    |         |
Aug 31 19:03:22.648 INFO kablam!    |         help: remove this `mut`
Aug 31 19:03:22.648 INFO kablam!    |
Aug 31 19:03:22.648 INFO kablam!    = note: #[warn(unused_mut)] on by default
Aug 31 19:03:22.648 INFO kablam! 
Aug 31 19:03:22.690 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 1.29s
Aug 31 19:03:22.694 INFO kablam! su: No module specific data is present
Aug 31 19:03:23.162 INFO running `"docker" "rm" "-f" "c731659bd6102b684081fff6bc5e5920c7659fa1b02a7e883d56bf1a6f1ee8e1"`
Aug 31 19:03:23.332 INFO blam! c731659bd6102b684081fff6bc5e5920c7659fa1b02a7e883d56bf1a6f1ee8e1