Nov 28 13:08:13.625 INFO checking ICimpoes/rusty-train against master#0b9f19dff1347e29bf4362ab5a8fab84b43023b5 for pr-56074 Nov 28 13:08:13.627 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56074/worker-6/master#0b9f19dff1347e29bf4362ab5a8fab84b43023b5:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/pr-56074/master#0b9f19dff1347e29bf4362ab5a8fab84b43023b5:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +0b9f19dff1347e29bf4362ab5a8fab84b43023b5-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"` Nov 28 13:08:14.042 INFO [stdout] 998680b515d537423f7f43da9f2233536fdc1784f35f7ffab32c444b44d3ef2b Nov 28 13:08:14.044 INFO running `"docker" "start" "-a" "998680b515d537423f7f43da9f2233536fdc1784f35f7ffab32c444b44d3ef2b"` Nov 28 13:08:15.360 INFO [stderr] usermod: no changes Nov 28 13:08:15.490 INFO [stderr] Checking rusty-train v0.1.0 (/source) Nov 28 13:08:16.292 INFO [stderr] warning: function is never used: `middle_function` Nov 28 13:08:16.293 INFO [stderr] --> src/communicator/lib/mod.rs:6:5 Nov 28 13:08:16.293 INFO [stderr] | Nov 28 13:08:16.293 INFO [stderr] 6 | pub fn middle_function() { Nov 28 13:08:16.293 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^ Nov 28 13:08:16.293 INFO [stderr] | Nov 28 13:08:16.293 INFO [stderr] = note: #[warn(dead_code)] on by default Nov 28 13:08:16.293 INFO [stderr] Nov 28 13:08:16.293 INFO [stderr] warning: function is never used: `middle_secret_function` Nov 28 13:08:16.293 INFO [stderr] --> src/communicator/lib/mod.rs:10:5 Nov 28 13:08:16.293 INFO [stderr] | Nov 28 13:08:16.293 INFO [stderr] 10 | fn middle_secret_function() { Nov 28 13:08:16.293 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 28 13:08:16.293 INFO [stderr] Nov 28 13:08:16.293 INFO [stderr] warning: function is never used: `inner_function` Nov 28 13:08:16.293 INFO [stderr] --> src/communicator/lib/mod.rs:17:9 Nov 28 13:08:16.293 INFO [stderr] | Nov 28 13:08:16.293 INFO [stderr] 17 | pub fn inner_function() {} Nov 28 13:08:16.293 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^ Nov 28 13:08:16.293 INFO [stderr] Nov 28 13:08:16.293 INFO [stderr] warning: function is never used: `secret_function` Nov 28 13:08:16.293 INFO [stderr] --> src/communicator/lib/mod.rs:19:9 Nov 28 13:08:16.293 INFO [stderr] | Nov 28 13:08:16.293 INFO [stderr] 19 | fn secret_function() { Nov 28 13:08:16.293 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^ Nov 28 13:08:16.293 INFO [stderr] Nov 28 13:08:16.293 INFO [stderr] warning: function is never used: `inner_function` Nov 28 13:08:16.293 INFO [stderr] --> src/communicator/lib/mod.rs:26:13 Nov 28 13:08:16.293 INFO [stderr] | Nov 28 13:08:16.293 INFO [stderr] 26 | pub fn inner_function() { Nov 28 13:08:16.294 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^ Nov 28 13:08:16.294 INFO [stderr] Nov 28 13:08:16.294 INFO [stderr] warning: function is never used: `try_me` Nov 28 13:08:16.294 INFO [stderr] --> src/communicator/lib/mod.rs:56:1 Nov 28 13:08:16.294 INFO [stderr] | Nov 28 13:08:16.294 INFO [stderr] 56 | fn try_me() { Nov 28 13:08:16.294 INFO [stderr] | ^^^^^^^^^^^ Nov 28 13:08:16.294 INFO [stderr] Nov 28 13:08:16.294 INFO [stderr] warning: function is never used: `prints_and_returns_10` Nov 28 13:08:16.294 INFO [stderr] --> src/communicator/lib/mod.rs:89:1 Nov 28 13:08:16.294 INFO [stderr] | Nov 28 13:08:16.294 INFO [stderr] 89 | fn prints_and_returns_10(a: i32) -> i32 { Nov 28 13:08:16.294 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 28 13:08:16.294 INFO [stderr] Nov 28 13:08:17.195 INFO [stderr] warning: function is never used: `middle_function` Nov 28 13:08:17.195 INFO [stderr] --> src/communicator/lib/mod.rs:6:5 Nov 28 13:08:17.195 INFO [stderr] | Nov 28 13:08:17.195 INFO [stderr] 6 | pub fn middle_function() { Nov 28 13:08:17.195 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^ Nov 28 13:08:17.233 INFO [stderr] | Nov 28 13:08:17.233 INFO [stderr] = note: #[warn(dead_code)] on by default Nov 28 13:08:17.233 INFO [stderr] Nov 28 13:08:17.234 INFO [stderr] warning: function is never used: `middle_secret_function` Nov 28 13:08:17.234 INFO [stderr] --> src/communicator/lib/mod.rs:10:5 Nov 28 13:08:17.234 INFO [stderr] | Nov 28 13:08:17.234 INFO [stderr] 10 | fn middle_secret_function() { Nov 28 13:08:17.234 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 28 13:08:17.234 INFO [stderr] Nov 28 13:08:17.234 INFO [stderr] warning: function is never used: `inner_function` Nov 28 13:08:17.234 INFO [stderr] --> src/communicator/lib/mod.rs:17:9 Nov 28 13:08:17.234 INFO [stderr] | Nov 28 13:08:17.234 INFO [stderr] 17 | pub fn inner_function() {} Nov 28 13:08:17.234 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^ Nov 28 13:08:17.234 INFO [stderr] Nov 28 13:08:17.234 INFO [stderr] warning: function is never used: `secret_function` Nov 28 13:08:17.234 INFO [stderr] --> src/communicator/lib/mod.rs:19:9 Nov 28 13:08:17.234 INFO [stderr] | Nov 28 13:08:17.234 INFO [stderr] 19 | fn secret_function() { Nov 28 13:08:17.234 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^ Nov 28 13:08:17.234 INFO [stderr] Nov 28 13:08:17.234 INFO [stderr] warning: function is never used: `inner_function` Nov 28 13:08:17.234 INFO [stderr] --> src/communicator/lib/mod.rs:26:13 Nov 28 13:08:17.234 INFO [stderr] | Nov 28 13:08:17.234 INFO [stderr] 26 | pub fn inner_function() { Nov 28 13:08:17.234 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^ Nov 28 13:08:17.234 INFO [stderr] Nov 28 13:08:17.234 INFO [stderr] warning: function is never used: `try_me` Nov 28 13:08:17.234 INFO [stderr] --> src/communicator/lib/mod.rs:56:1 Nov 28 13:08:17.234 INFO [stderr] | Nov 28 13:08:17.234 INFO [stderr] 56 | fn try_me() { Nov 28 13:08:17.234 INFO [stderr] | ^^^^^^^^^^^ Nov 28 13:08:17.234 INFO [stderr] Nov 28 13:08:18.924 INFO [stderr] warning: unused variable: `v` Nov 28 13:08:18.924 INFO [stderr] --> src/errors/bin/main.rs:5:9 Nov 28 13:08:18.924 INFO [stderr] | Nov 28 13:08:18.925 INFO [stderr] 5 | let v = vec![1, 2, 3]; Nov 28 13:08:18.925 INFO [stderr] | ^ help: consider using `_v` instead Nov 28 13:08:18.932 INFO [stderr] | Nov 28 13:08:18.933 INFO [stderr] = note: #[warn(unused_variables)] on by default Nov 28 13:08:18.933 INFO [stderr] Nov 28 13:08:18.934 INFO [stderr] warning: unused variable: `f` Nov 28 13:08:18.934 INFO [stderr] --> src/errors/bin/main.rs:23:9 Nov 28 13:08:18.934 INFO [stderr] | Nov 28 13:08:18.934 INFO [stderr] 23 | let f = match f { Nov 28 13:08:18.934 INFO [stderr] | ^ help: consider using `_f` instead Nov 28 13:08:18.935 INFO [stderr] Nov 28 13:08:18.959 INFO [stderr] warning: function is never used: `read_username_from_file` Nov 28 13:08:18.959 INFO [stderr] --> src/errors/bin/main.rs:44:1 Nov 28 13:08:18.959 INFO [stderr] | Nov 28 13:08:18.972 INFO [stderr] 44 | fn read_username_from_file() -> Result { Nov 28 13:08:18.972 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 28 13:08:18.972 INFO [stderr] | Nov 28 13:08:18.972 INFO [stderr] = note: #[warn(dead_code)] on by default Nov 28 13:08:18.972 INFO [stderr] Nov 28 13:08:18.974 INFO [stderr] warning: function is never used: `read_username_from_file2` Nov 28 13:08:18.974 INFO [stderr] --> src/errors/bin/main.rs:60:1 Nov 28 13:08:18.974 INFO [stderr] | Nov 28 13:08:18.974 INFO [stderr] 60 | fn read_username_from_file2() -> Result { Nov 28 13:08:18.974 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 28 13:08:18.974 INFO [stderr] Nov 28 13:08:19.016 INFO [stderr] warning: function `openFile` should have a snake case name such as `open_file` Nov 28 13:08:19.016 INFO [stderr] --> src/errors/bin/main.rs:20:1 Nov 28 13:08:19.016 INFO [stderr] | Nov 28 13:08:19.016 INFO [stderr] 20 | / fn openFile() { Nov 28 13:08:19.016 INFO [stderr] 21 | | let f = File::open("hello.txt"); Nov 28 13:08:19.016 INFO [stderr] 22 | | Nov 28 13:08:19.018 INFO [stderr] 23 | | let f = match f { Nov 28 13:08:19.018 INFO [stderr] ... | Nov 28 13:08:19.018 INFO [stderr] 40 | | }; Nov 28 13:08:19.018 INFO [stderr] 41 | | } Nov 28 13:08:19.018 INFO [stderr] | |_^ Nov 28 13:08:19.018 INFO [stderr] | Nov 28 13:08:19.018 INFO [stderr] = note: #[warn(non_snake_case)] on by default Nov 28 13:08:19.018 INFO [stderr] Nov 28 13:08:19.588 INFO [stderr] warning: unnecessary parentheses around assigned value Nov 28 13:08:19.589 INFO [stderr] --> src/collections/bin/main.rs:181:14 Nov 28 13:08:19.589 INFO [stderr] | Nov 28 13:08:19.589 INFO [stderr] 181 | t += (*i as f32); Nov 28 13:08:19.589 INFO [stderr] | ^^^^^^^^^^^ help: remove these parentheses Nov 28 13:08:19.620 INFO [stderr] | Nov 28 13:08:19.621 INFO [stderr] = note: #[warn(unused_parens)] on by default Nov 28 13:08:19.621 INFO [stderr] Nov 28 13:08:19.781 INFO [stderr] warning: unused variable: `s` Nov 28 13:08:19.782 INFO [stderr] --> src/lifetimes/bin/main.rs:5:13 Nov 28 13:08:19.782 INFO [stderr] | Nov 28 13:08:19.782 INFO [stderr] 5 | let s: &'static str = "asdsa"; Nov 28 13:08:19.782 INFO [stderr] | ^ help: consider using `_s` instead Nov 28 13:08:19.782 INFO [stderr] | Nov 28 13:08:19.782 INFO [stderr] = note: #[warn(unused_variables)] on by default Nov 28 13:08:19.782 INFO [stderr] Nov 28 13:08:19.782 INFO [stderr] warning: unused variable: `y` Nov 28 13:08:19.782 INFO [stderr] --> src/lifetimes/bin/main.rs:40:29 Nov 28 13:08:19.782 INFO [stderr] | Nov 28 13:08:19.782 INFO [stderr] 40 | fn longest2<'a>(x: &'a str, y: &str) -> &'a str { Nov 28 13:08:19.782 INFO [stderr] | ^ help: consider using `_y` instead Nov 28 13:08:19.782 INFO [stderr] Nov 28 13:08:19.782 INFO [stderr] warning: unused variable: `y` Nov 28 13:08:19.782 INFO [stderr] --> src/lifetimes/bin/main.rs:44:29 Nov 28 13:08:19.782 INFO [stderr] | Nov 28 13:08:19.782 INFO [stderr] 44 | fn longest3<'a>(x: &'a str, y: &str) -> &'a str { Nov 28 13:08:19.782 INFO [stderr] | ^ help: consider using `_y` instead Nov 28 13:08:19.782 INFO [stderr] Nov 28 13:08:19.844 INFO [stderr] warning: unused variable: `black` Nov 28 13:08:19.844 INFO [stderr] --> src/chapter5/bin/main.rs:23:9 Nov 28 13:08:19.844 INFO [stderr] | Nov 28 13:08:19.844 INFO [stderr] 23 | let black = Color(0, 0, 0); Nov 28 13:08:19.844 INFO [stderr] | ^^^^^ help: consider using `_black` instead Nov 28 13:08:19.852 INFO [stderr] warning: function is never used: `longest3` Nov 28 13:08:19.852 INFO [stderr] --> src/lifetimes/bin/main.rs:44:1 Nov 28 13:08:19.852 INFO [stderr] | Nov 28 13:08:19.852 INFO [stderr] 44 | fn longest3<'a>(x: &'a str, y: &str) -> &'a str { Nov 28 13:08:19.852 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 28 13:08:19.869 INFO [stderr] | Nov 28 13:08:19.869 INFO [stderr] = note: #[warn(dead_code)] on by default Nov 28 13:08:19.869 INFO [stderr] Nov 28 13:08:19.869 INFO [stderr] warning: field is never used: `a` Nov 28 13:08:19.869 INFO [stderr] --> src/lifetimes/bin/main.rs:50:5 Nov 28 13:08:19.869 INFO [stderr] | Nov 28 13:08:19.869 INFO [stderr] 50 | a: String, Nov 28 13:08:19.869 INFO [stderr] | ^^^^^^^^^ Nov 28 13:08:19.869 INFO [stderr] Nov 28 13:08:19.869 INFO [stderr] warning: method is never used: `level` Nov 28 13:08:19.870 INFO [stderr] --> src/lifetimes/bin/main.rs:54:5 Nov 28 13:08:19.870 INFO [stderr] | Nov 28 13:08:19.870 INFO [stderr] 54 | fn level(&self) -> i32 { Nov 28 13:08:19.870 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^ Nov 28 13:08:19.870 INFO [stderr] Nov 28 13:08:19.870 INFO [stderr] warning: method is never used: `a` Nov 28 13:08:19.870 INFO [stderr] --> src/lifetimes/bin/main.rs:60:5 Nov 28 13:08:19.870 INFO [stderr] | Nov 28 13:08:19.870 INFO [stderr] 60 | fn a(&self) -> &str { Nov 28 13:08:19.870 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^ Nov 28 13:08:19.870 INFO [stderr] Nov 28 13:08:19.871 INFO [stderr] warning: function is never used: `longest_with_an_announcement` Nov 28 13:08:19.871 INFO [stderr] --> src/lifetimes/bin/main.rs:67:1 Nov 28 13:08:19.871 INFO [stderr] | Nov 28 13:08:19.871 INFO [stderr] 67 | / fn longest_with_an_announcement<'a, T>(x: &'a str, y: &'a str, ann: T) -> &'a str Nov 28 13:08:19.871 INFO [stderr] 68 | | where T: Display Nov 28 13:08:19.871 INFO [stderr] 69 | | { Nov 28 13:08:19.871 INFO [stderr] 70 | | println!("Announcement! {}", ann); Nov 28 13:08:19.871 INFO [stderr] ... | Nov 28 13:08:19.871 INFO [stderr] 75 | | } Nov 28 13:08:19.871 INFO [stderr] 76 | | } Nov 28 13:08:19.871 INFO [stderr] | |_^ Nov 28 13:08:19.871 INFO [stderr] Nov 28 13:08:19.872 INFO [stderr] | Nov 28 13:08:19.872 INFO [stderr] = note: #[warn(unused_variables)] on by default Nov 28 13:08:19.872 INFO [stderr] Nov 28 13:08:19.873 INFO [stderr] warning: unused variable: `origin` Nov 28 13:08:19.873 INFO [stderr] --> src/chapter5/bin/main.rs:24:9 Nov 28 13:08:19.873 INFO [stderr] | Nov 28 13:08:19.874 INFO [stderr] 24 | let origin = Point(0, 0, 0); Nov 28 13:08:19.874 INFO [stderr] | ^^^^^^ help: consider using `_origin` instead Nov 28 13:08:19.874 INFO [stderr] Nov 28 13:08:19.952 INFO [stderr] warning: function is never used: `build_user` Nov 28 13:08:19.952 INFO [stderr] --> src/chapter5/bin/main.rs:103:1 Nov 28 13:08:19.952 INFO [stderr] | Nov 28 13:08:19.952 INFO [stderr] 103 | fn build_user(email: String, username: String) -> User { Nov 28 13:08:19.952 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 28 13:08:19.952 INFO [stderr] | Nov 28 13:08:19.952 INFO [stderr] = note: #[warn(dead_code)] on by default Nov 28 13:08:19.952 INFO [stderr] Nov 28 13:08:20.196 INFO [stderr] warning: unused variable: `t` Nov 28 13:08:20.196 INFO [stderr] --> src/traits/bin/main.rs:83:24 Nov 28 13:08:20.196 INFO [stderr] | Nov 28 13:08:20.196 INFO [stderr] 83 | fn some_function(t: T, u: U) -> i32 Nov 28 13:08:20.196 INFO [stderr] | ^ help: consider using `_t` instead Nov 28 13:08:20.196 INFO [stderr] | Nov 28 13:08:20.196 INFO [stderr] = note: #[warn(unused_variables)] on by default Nov 28 13:08:20.196 INFO [stderr] Nov 28 13:08:20.196 INFO [stderr] warning: unused variable: `u` Nov 28 13:08:20.196 INFO [stderr] --> src/traits/bin/main.rs:83:30 Nov 28 13:08:20.196 INFO [stderr] | Nov 28 13:08:20.196 INFO [stderr] 83 | fn some_function(t: T, u: U) -> i32 Nov 28 13:08:20.196 INFO [stderr] | ^ help: consider using `_u` instead Nov 28 13:08:20.196 INFO [stderr] Nov 28 13:08:20.268 INFO [stderr] warning: function is never used: `some_function` Nov 28 13:08:20.268 INFO [stderr] --> src/traits/bin/main.rs:83:1 Nov 28 13:08:20.268 INFO [stderr] | Nov 28 13:08:20.268 INFO [stderr] 83 | / fn some_function(t: T, u: U) -> i32 Nov 28 13:08:20.268 INFO [stderr] 84 | | where T: std::fmt::Display + Clone, Nov 28 13:08:20.268 INFO [stderr] 85 | | U: Clone + std::fmt::Debug { Nov 28 13:08:20.268 INFO [stderr] 86 | | 1 Nov 28 13:08:20.268 INFO [stderr] 87 | | } Nov 28 13:08:20.268 INFO [stderr] | |_^ Nov 28 13:08:20.268 INFO [stderr] | Nov 28 13:08:20.268 INFO [stderr] = note: #[warn(dead_code)] on by default Nov 28 13:08:20.268 INFO [stderr] Nov 28 13:08:20.317 INFO [stderr] warning: struct is never constructed: `Pair` Nov 28 13:08:20.317 INFO [stderr] --> src/traits/bin/main.rs:92:1 Nov 28 13:08:20.317 INFO [stderr] | Nov 28 13:08:20.317 INFO [stderr] 92 | struct Pair { Nov 28 13:08:20.317 INFO [stderr] | ^^^^^^^^^^^^^^ Nov 28 13:08:20.317 INFO [stderr] Nov 28 13:08:20.317 INFO [stderr] warning: method is never used: `new` Nov 28 13:08:20.317 INFO [stderr] --> src/traits/bin/main.rs:98:5 Nov 28 13:08:20.317 INFO [stderr] | Nov 28 13:08:20.317 INFO [stderr] 98 | fn new(x: T, y: T) -> Self { Nov 28 13:08:20.317 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 28 13:08:20.317 INFO [stderr] Nov 28 13:08:20.317 INFO [stderr] warning: method is never used: `cmp_display` Nov 28 13:08:20.317 INFO [stderr] --> src/traits/bin/main.rs:107:5 Nov 28 13:08:20.317 INFO [stderr] | Nov 28 13:08:20.317 INFO [stderr] 107 | fn cmp_display(&self) { Nov 28 13:08:20.317 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^ Nov 28 13:08:20.317 INFO [stderr] Nov 28 13:08:20.484 INFO [stderr] warning: function is never used: `max_ch` Nov 28 13:08:20.484 INFO [stderr] --> src/generics/bin/main.rs:51:1 Nov 28 13:08:20.484 INFO [stderr] | Nov 28 13:08:20.484 INFO [stderr] 51 | fn max_ch(list: &[char]) -> Option { Nov 28 13:08:20.484 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 28 13:08:20.484 INFO [stderr] | Nov 28 13:08:20.484 INFO [stderr] = note: #[warn(dead_code)] on by default Nov 28 13:08:20.484 INFO [stderr] Nov 28 13:08:20.500 INFO [stderr] warning: unused variable: `s1` Nov 28 13:08:20.500 INFO [stderr] --> src/collections/bin/main.rs:99:9 Nov 28 13:08:20.500 INFO [stderr] | Nov 28 13:08:20.500 INFO [stderr] 99 | let s1 = String::from("hello"); Nov 28 13:08:20.500 INFO [stderr] | ^^ help: consider using `_s1` instead Nov 28 13:08:20.500 INFO [stderr] | Nov 28 13:08:20.500 INFO [stderr] = note: #[warn(unused_variables)] on by default Nov 28 13:08:20.500 INFO [stderr] Nov 28 13:08:20.500 INFO [stderr] warning: unused variable: `scores` Nov 28 13:08:20.500 INFO [stderr] --> src/collections/bin/main.rs:143:9 Nov 28 13:08:20.500 INFO [stderr] | Nov 28 13:08:20.500 INFO [stderr] 143 | let scores: HashMap<_, _> = zipped.collect(); Nov 28 13:08:20.500 INFO [stderr] | ^^^^^^ help: consider using `_scores` instead Nov 28 13:08:20.500 INFO [stderr] Nov 28 13:08:20.752 INFO [stderr] warning: variable does not need to be mutable Nov 28 13:08:20.752 INFO [stderr] --> src/collections/bin/main.rs:56:9 Nov 28 13:08:20.752 INFO [stderr] | Nov 28 13:08:20.752 INFO [stderr] 56 | let mut s = String::new(); Nov 28 13:08:20.752 INFO [stderr] | ----^ Nov 28 13:08:20.752 INFO [stderr] | | Nov 28 13:08:20.752 INFO [stderr] | help: remove this `mut` Nov 28 13:08:20.760 INFO [stderr] | Nov 28 13:08:20.760 INFO [stderr] = note: #[warn(unused_mut)] on by default Nov 28 13:08:20.760 INFO [stderr] Nov 28 13:08:21.516 INFO [stderr] warning: unused variable: `s` Nov 28 13:08:21.516 INFO [stderr] --> src/lifetimes/bin/main.rs:5:13 Nov 28 13:08:21.516 INFO [stderr] | Nov 28 13:08:21.516 INFO [stderr] 5 | let s: &'static str = "asdsa"; Nov 28 13:08:21.516 INFO [stderr] | ^ help: consider using `_s` instead Nov 28 13:08:21.516 INFO [stderr] | Nov 28 13:08:21.516 INFO [stderr] = note: #[warn(unused_variables)] on by default Nov 28 13:08:21.516 INFO [stderr] Nov 28 13:08:21.516 INFO [stderr] warning: unused variable: `y` Nov 28 13:08:21.516 INFO [stderr] --> src/lifetimes/bin/main.rs:40:29 Nov 28 13:08:21.516 INFO [stderr] | Nov 28 13:08:21.516 INFO [stderr] 40 | fn longest2<'a>(x: &'a str, y: &str) -> &'a str { Nov 28 13:08:21.516 INFO [stderr] | ^ help: consider using `_y` instead Nov 28 13:08:21.516 INFO [stderr] Nov 28 13:08:21.516 INFO [stderr] warning: unused variable: `y` Nov 28 13:08:21.516 INFO [stderr] --> src/lifetimes/bin/main.rs:44:29 Nov 28 13:08:21.516 INFO [stderr] | Nov 28 13:08:21.516 INFO [stderr] 44 | fn longest3<'a>(x: &'a str, y: &str) -> &'a str { Nov 28 13:08:21.516 INFO [stderr] | ^ help: consider using `_y` instead Nov 28 13:08:21.516 INFO [stderr] Nov 28 13:08:21.592 INFO [stderr] warning: function is never used: `longest3` Nov 28 13:08:21.593 INFO [stderr] --> src/lifetimes/bin/main.rs:44:1 Nov 28 13:08:21.593 INFO [stderr] | Nov 28 13:08:21.593 INFO [stderr] 44 | fn longest3<'a>(x: &'a str, y: &str) -> &'a str { Nov 28 13:08:21.593 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 28 13:08:21.593 INFO [stderr] | Nov 28 13:08:21.593 INFO [stderr] = note: #[warn(dead_code)] on by default Nov 28 13:08:21.593 INFO [stderr] Nov 28 13:08:21.593 INFO [stderr] warning: field is never used: `a` Nov 28 13:08:21.593 INFO [stderr] --> src/lifetimes/bin/main.rs:50:5 Nov 28 13:08:21.593 INFO [stderr] | Nov 28 13:08:21.593 INFO [stderr] 50 | a: String, Nov 28 13:08:21.593 INFO [stderr] | ^^^^^^^^^ Nov 28 13:08:21.593 INFO [stderr] Nov 28 13:08:21.593 INFO [stderr] warning: method is never used: `level` Nov 28 13:08:21.593 INFO [stderr] --> src/lifetimes/bin/main.rs:54:5 Nov 28 13:08:21.593 INFO [stderr] | Nov 28 13:08:21.593 INFO [stderr] 54 | fn level(&self) -> i32 { Nov 28 13:08:21.593 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^ Nov 28 13:08:21.593 INFO [stderr] Nov 28 13:08:21.593 INFO [stderr] warning: method is never used: `a` Nov 28 13:08:21.593 INFO [stderr] --> src/lifetimes/bin/main.rs:60:5 Nov 28 13:08:21.593 INFO [stderr] | Nov 28 13:08:21.593 INFO [stderr] 60 | fn a(&self) -> &str { Nov 28 13:08:21.593 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^ Nov 28 13:08:21.593 INFO [stderr] Nov 28 13:08:21.593 INFO [stderr] warning: function is never used: `longest_with_an_announcement` Nov 28 13:08:21.593 INFO [stderr] --> src/lifetimes/bin/main.rs:67:1 Nov 28 13:08:21.593 INFO [stderr] | Nov 28 13:08:21.593 INFO [stderr] 67 | / fn longest_with_an_announcement<'a, T>(x: &'a str, y: &'a str, ann: T) -> &'a str Nov 28 13:08:21.593 INFO [stderr] 68 | | where T: Display Nov 28 13:08:21.593 INFO [stderr] 69 | | { Nov 28 13:08:21.593 INFO [stderr] 70 | | println!("Announcement! {}", ann); Nov 28 13:08:21.593 INFO [stderr] ... | Nov 28 13:08:21.593 INFO [stderr] 75 | | } Nov 28 13:08:21.593 INFO [stderr] 76 | | } Nov 28 13:08:21.593 INFO [stderr] | |_^ Nov 28 13:08:21.593 INFO [stderr] Nov 28 13:08:21.984 INFO [stderr] warning: unused variable: `black` Nov 28 13:08:21.984 INFO [stderr] --> src/chapter5/bin/main.rs:23:9 Nov 28 13:08:21.984 INFO [stderr] | Nov 28 13:08:21.984 INFO [stderr] 23 | let black = Color(0, 0, 0); Nov 28 13:08:21.984 INFO [stderr] | ^^^^^ help: consider using `_black` instead Nov 28 13:08:21.992 INFO [stderr] warning: unused imports: `Red`, `Yellow` Nov 28 13:08:21.992 INFO [stderr] --> src/chapter7/bin/main.rs:3:34 Nov 28 13:08:21.992 INFO [stderr] | Nov 28 13:08:21.992 INFO [stderr] 3 | use communicator::TrafficLight::{Red, Yellow}; Nov 28 13:08:21.992 INFO [stderr] | ^^^ ^^^^^^ Nov 28 13:08:21.993 INFO [stderr] | Nov 28 13:08:21.993 INFO [stderr] = note: #[warn(unused_variables)] on by default Nov 28 13:08:21.993 INFO [stderr] Nov 28 13:08:21.993 INFO [stderr] warning: unused variable: `origin` Nov 28 13:08:21.993 INFO [stderr] --> src/chapter5/bin/main.rs:24:9 Nov 28 13:08:21.993 INFO [stderr] | Nov 28 13:08:21.993 INFO [stderr] 24 | let origin = Point(0, 0, 0); Nov 28 13:08:21.994 INFO [stderr] | ^^^^^^ help: consider using `_origin` instead Nov 28 13:08:21.994 INFO [stderr] Nov 28 13:08:22.012 INFO [stderr] | Nov 28 13:08:22.013 INFO [stderr] = note: #[warn(unused_imports)] on by default Nov 28 13:08:22.013 INFO [stderr] Nov 28 13:08:22.032 INFO [stderr] warning: function is never used: `build_user` Nov 28 13:08:22.032 INFO [stderr] --> src/chapter5/bin/main.rs:103:1 Nov 28 13:08:22.032 INFO [stderr] | Nov 28 13:08:22.032 INFO [stderr] 103 | fn build_user(email: String, username: String) -> User { Nov 28 13:08:22.032 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 28 13:08:22.045 INFO [stderr] warning: unused imports: `Red`, `Yellow` Nov 28 13:08:22.046 INFO [stderr] --> src/chapter7/bin/main.rs:3:34 Nov 28 13:08:22.046 INFO [stderr] | Nov 28 13:08:22.046 INFO [stderr] 3 | use communicator::TrafficLight::{Red, Yellow}; Nov 28 13:08:22.046 INFO [stderr] | ^^^ ^^^^^^ Nov 28 13:08:22.046 INFO [stderr] | Nov 28 13:08:22.046 INFO [stderr] = note: #[warn(dead_code)] on by default Nov 28 13:08:22.046 INFO [stderr] Nov 28 13:08:22.047 INFO [stderr] | Nov 28 13:08:22.047 INFO [stderr] = note: #[warn(unused_imports)] on by default Nov 28 13:08:22.047 INFO [stderr] Nov 28 13:08:22.048 INFO [stderr] warning: unused variable: `red` Nov 28 13:08:22.048 INFO [stderr] --> src/chapter7/bin/main.rs:8:9 Nov 28 13:08:22.048 INFO [stderr] | Nov 28 13:08:22.048 INFO [stderr] 8 | let red = Red; Nov 28 13:08:22.048 INFO [stderr] | ^^^ help: consider using `_red` instead Nov 28 13:08:22.056 INFO [stderr] | Nov 28 13:08:22.056 INFO [stderr] = note: #[warn(unused_variables)] on by default Nov 28 13:08:22.056 INFO [stderr] Nov 28 13:08:22.057 INFO [stderr] warning: unused variable: `yellow` Nov 28 13:08:22.057 INFO [stderr] --> src/chapter7/bin/main.rs:9:9 Nov 28 13:08:22.057 INFO [stderr] | Nov 28 13:08:22.057 INFO [stderr] 9 | let yellow = Yellow; Nov 28 13:08:22.057 INFO [stderr] | ^^^^^^ help: consider using `_yellow` instead Nov 28 13:08:22.057 INFO [stderr] Nov 28 13:08:22.057 INFO [stderr] warning: unused variable: `green` Nov 28 13:08:22.058 INFO [stderr] --> src/chapter7/bin/main.rs:10:9 Nov 28 13:08:22.058 INFO [stderr] | Nov 28 13:08:22.058 INFO [stderr] 10 | let green = communicator::TrafficLight::Green; Nov 28 13:08:22.058 INFO [stderr] | ^^^^^ help: consider using `_green` instead Nov 28 13:08:22.058 INFO [stderr] Nov 28 13:08:22.058 INFO [stderr] warning: unused variable: `green` Nov 28 13:08:22.058 INFO [stderr] --> src/chapter7/bin/main.rs:14:9 Nov 28 13:08:22.058 INFO [stderr] | Nov 28 13:08:22.058 INFO [stderr] 14 | let green = Green; Nov 28 13:08:22.058 INFO [stderr] | ^^^^^ help: consider using `_green` instead Nov 28 13:08:22.058 INFO [stderr] Nov 28 13:08:22.120 INFO [stderr] warning: unused variable: `red` Nov 28 13:08:22.141 INFO [stderr] --> src/chapter7/bin/main.rs:8:9 Nov 28 13:08:22.141 INFO [stderr] | Nov 28 13:08:22.141 INFO [stderr] 8 | let red = Red; Nov 28 13:08:22.141 INFO [stderr] | ^^^ help: consider using `_red` instead Nov 28 13:08:22.141 INFO [stderr] | Nov 28 13:08:22.141 INFO [stderr] = note: #[warn(unused_variables)] on by default Nov 28 13:08:22.141 INFO [stderr] Nov 28 13:08:22.141 INFO [stderr] warning: unused variable: `yellow` Nov 28 13:08:22.141 INFO [stderr] --> src/chapter7/bin/main.rs:9:9 Nov 28 13:08:22.141 INFO [stderr] | Nov 28 13:08:22.141 INFO [stderr] 9 | let yellow = Yellow; Nov 28 13:08:22.141 INFO [stderr] | ^^^^^^ help: consider using `_yellow` instead Nov 28 13:08:22.141 INFO [stderr] Nov 28 13:08:22.141 INFO [stderr] warning: unused variable: `green` Nov 28 13:08:22.141 INFO [stderr] --> src/chapter7/bin/main.rs:10:9 Nov 28 13:08:22.141 INFO [stderr] | Nov 28 13:08:22.141 INFO [stderr] 10 | let green = communicator::TrafficLight::Green; Nov 28 13:08:22.141 INFO [stderr] | ^^^^^ help: consider using `_green` instead Nov 28 13:08:22.141 INFO [stderr] Nov 28 13:08:22.141 INFO [stderr] warning: unused variable: `green` Nov 28 13:08:22.141 INFO [stderr] --> src/chapter7/bin/main.rs:14:9 Nov 28 13:08:22.141 INFO [stderr] | Nov 28 13:08:22.141 INFO [stderr] 14 | let green = Green; Nov 28 13:08:22.141 INFO [stderr] | ^^^^^ help: consider using `_green` instead Nov 28 13:08:22.141 INFO [stderr] Nov 28 13:08:22.324 INFO [stderr] warning: unused variable: `ip_type` Nov 28 13:08:22.324 INFO [stderr] --> src/chapter6/bin/main.rs:1:10 Nov 28 13:08:22.324 INFO [stderr] | Nov 28 13:08:22.324 INFO [stderr] 1 | fn route(ip_type: IpAddrKind) { } Nov 28 13:08:22.324 INFO [stderr] | ^^^^^^^ help: consider using `_ip_type` instead Nov 28 13:08:22.345 INFO [stderr] | Nov 28 13:08:22.347 INFO [stderr] = note: #[warn(unused_variables)] on by default Nov 28 13:08:22.348 INFO [stderr] Nov 28 13:08:22.348 INFO [stderr] warning: unused variable: `x` Nov 28 13:08:22.348 INFO [stderr] --> src/chapter6/bin/main.rs:32:35 Nov 28 13:08:22.349 INFO [stderr] | Nov 28 13:08:22.349 INFO [stderr] 32 | let x = some_string.and_then(|x: &str| Some("sf")); Nov 28 13:08:22.350 INFO [stderr] | ^ help: consider using `_x` instead Nov 28 13:08:22.350 INFO [stderr] Nov 28 13:08:22.350 INFO [stderr] warning: unused variable: `six` Nov 28 13:08:22.351 INFO [stderr] --> src/chapter6/bin/main.rs:11:9 Nov 28 13:08:22.351 INFO [stderr] | Nov 28 13:08:22.351 INFO [stderr] 11 | let six = IpAddrKind::V6; Nov 28 13:08:22.352 INFO [stderr] | ^^^ help: consider using `_six` instead Nov 28 13:08:22.352 INFO [stderr] Nov 28 13:08:22.352 INFO [stderr] warning: unused variable: `home` Nov 28 13:08:22.353 INFO [stderr] --> src/chapter6/bin/main.rs:18:9 Nov 28 13:08:22.353 INFO [stderr] | Nov 28 13:08:22.353 INFO [stderr] 18 | let home = IpAddr::V4(String::from("127.0.0.1")); Nov 28 13:08:22.353 INFO [stderr] | ^^^^ help: consider using `_home` instead Nov 28 13:08:22.353 INFO [stderr] Nov 28 13:08:22.353 INFO [stderr] warning: unused variable: `loopback` Nov 28 13:08:22.353 INFO [stderr] --> src/chapter6/bin/main.rs:19:9 Nov 28 13:08:22.354 INFO [stderr] | Nov 28 13:08:22.354 INFO [stderr] 19 | let loopback = IpAddr::V6(String::from("::1")); Nov 28 13:08:22.354 INFO [stderr] | ^^^^^^^^ help: consider using `_loopback` instead Nov 28 13:08:22.354 INFO [stderr] Nov 28 13:08:22.354 INFO [stderr] warning: unused variable: `home` Nov 28 13:08:22.354 INFO [stderr] --> src/chapter6/bin/main.rs:21:9 Nov 28 13:08:22.354 INFO [stderr] | Nov 28 13:08:22.354 INFO [stderr] 21 | let home = IpAddr2::V4(127, 0, 0, 1); Nov 28 13:08:22.354 INFO [stderr] | ^^^^ help: consider using `_home` instead Nov 28 13:08:22.355 INFO [stderr] Nov 28 13:08:22.355 INFO [stderr] warning: unused variable: `loopback` Nov 28 13:08:22.355 INFO [stderr] --> src/chapter6/bin/main.rs:22:9 Nov 28 13:08:22.355 INFO [stderr] | Nov 28 13:08:22.355 INFO [stderr] 22 | let loopback = IpAddr2::V6(String::from("::1")); Nov 28 13:08:22.355 INFO [stderr] | ^^^^^^^^ help: consider using `_loopback` instead Nov 28 13:08:22.355 INFO [stderr] Nov 28 13:08:22.355 INFO [stderr] warning: variable `count` is assigned to, but never used Nov 28 13:08:22.355 INFO [stderr] --> src/chapter6/bin/main.rs:72:13 Nov 28 13:08:22.355 INFO [stderr] | Nov 28 13:08:22.356 INFO [stderr] 72 | let mut count = 0; Nov 28 13:08:22.356 INFO [stderr] | ^^^^^ Nov 28 13:08:22.356 INFO [stderr] | Nov 28 13:08:22.356 INFO [stderr] = note: consider using `_count` instead Nov 28 13:08:22.356 INFO [stderr] Nov 28 13:08:22.356 INFO [stderr] warning: value assigned to `count` is never read Nov 28 13:08:22.356 INFO [stderr] --> src/chapter6/bin/main.rs:76:9 Nov 28 13:08:22.356 INFO [stderr] | Nov 28 13:08:22.357 INFO [stderr] 76 | count += 1; Nov 28 13:08:22.357 INFO [stderr] | ^^^^^ Nov 28 13:08:22.360 INFO [stderr] | Nov 28 13:08:22.360 INFO [stderr] = note: #[warn(unused_assignments)] on by default Nov 28 13:08:22.360 INFO [stderr] Nov 28 13:08:22.411 INFO [stderr] warning: variant is never constructed: `Quit` Nov 28 13:08:22.411 INFO [stderr] --> src/chapter6/bin/main.rs:94:5 Nov 28 13:08:22.412 INFO [stderr] | Nov 28 13:08:22.412 INFO [stderr] 94 | Quit, Nov 28 13:08:22.416 INFO [stderr] | ^^^^ Nov 28 13:08:22.448 INFO [stderr] | Nov 28 13:08:22.448 INFO [stderr] = note: #[warn(dead_code)] on by default Nov 28 13:08:22.448 INFO [stderr] Nov 28 13:08:22.449 INFO [stderr] warning: variant is never constructed: `Move` Nov 28 13:08:22.449 INFO [stderr] --> src/chapter6/bin/main.rs:95:5 Nov 28 13:08:22.450 INFO [stderr] | Nov 28 13:08:22.450 INFO [stderr] 95 | Move { x: i32, y: i32 }, Nov 28 13:08:22.450 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^ Nov 28 13:08:22.450 INFO [stderr] Nov 28 13:08:22.451 INFO [stderr] warning: variant is never constructed: `ChangeColor` Nov 28 13:08:22.451 INFO [stderr] --> src/chapter6/bin/main.rs:97:5 Nov 28 13:08:22.451 INFO [stderr] | Nov 28 13:08:22.451 INFO [stderr] 97 | ChangeColor(i32, i32, i32), Nov 28 13:08:22.451 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 28 13:08:22.451 INFO [stderr] Nov 28 13:08:22.451 INFO [stderr] warning: variant is never constructed: `Alaska` Nov 28 13:08:22.451 INFO [stderr] --> src/chapter6/bin/main.rs:115:5 Nov 28 13:08:22.452 INFO [stderr] | Nov 28 13:08:22.452 INFO [stderr] 115 | Alaska, Nov 28 13:08:22.452 INFO [stderr] | ^^^^^^ Nov 28 13:08:22.452 INFO [stderr] Nov 28 13:08:22.452 INFO [stderr] warning: variant is never constructed: `Nickel` Nov 28 13:08:22.452 INFO [stderr] --> src/chapter6/bin/main.rs:121:5 Nov 28 13:08:22.452 INFO [stderr] | Nov 28 13:08:22.453 INFO [stderr] 121 | Nickel, Nov 28 13:08:22.453 INFO [stderr] | ^^^^^^ Nov 28 13:08:22.453 INFO [stderr] Nov 28 13:08:22.578 INFO [stderr] warning: unnecessary parentheses around assigned value Nov 28 13:08:22.578 INFO [stderr] --> src/collections/bin/main.rs:181:14 Nov 28 13:08:22.578 INFO [stderr] | Nov 28 13:08:22.578 INFO [stderr] 181 | t += (*i as f32); Nov 28 13:08:22.578 INFO [stderr] | ^^^^^^^^^^^ help: remove these parentheses Nov 28 13:08:22.591 INFO [stderr] | Nov 28 13:08:22.591 INFO [stderr] = note: #[warn(unused_parens)] on by default Nov 28 13:08:22.591 INFO [stderr] Nov 28 13:08:22.855 INFO [stderr] warning: unused variable: `black` Nov 28 13:08:22.855 INFO [stderr] --> src/chapter3/bin/main.rs:107:9 Nov 28 13:08:22.855 INFO [stderr] | Nov 28 13:08:22.855 INFO [stderr] 107 | let black = Color(0, 0, 0); Nov 28 13:08:22.855 INFO [stderr] | ^^^^^ help: consider using `_black` instead Nov 28 13:08:22.855 INFO [stderr] | Nov 28 13:08:22.856 INFO [stderr] = note: #[warn(unused_variables)] on by default Nov 28 13:08:22.856 INFO [stderr] Nov 28 13:08:22.856 INFO [stderr] warning: unused variable: `origin` Nov 28 13:08:22.856 INFO [stderr] --> src/chapter3/bin/main.rs:108:9 Nov 28 13:08:22.856 INFO [stderr] | Nov 28 13:08:22.856 INFO [stderr] 108 | let origin = Point(0, 0, 0); Nov 28 13:08:22.856 INFO [stderr] | ^^^^^^ help: consider using `_origin` instead Nov 28 13:08:22.856 INFO [stderr] Nov 28 13:08:22.996 INFO [stderr] warning: function is never used: `gives_ownership` Nov 28 13:08:22.997 INFO [stderr] --> src/chapter3/bin/main.rs:119:1 Nov 28 13:08:22.997 INFO [stderr] | Nov 28 13:08:22.997 INFO [stderr] 119 | fn gives_ownership() -> String { Nov 28 13:08:22.997 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 28 13:08:22.997 INFO [stderr] | Nov 28 13:08:22.997 INFO [stderr] = note: #[warn(dead_code)] on by default Nov 28 13:08:22.997 INFO [stderr] Nov 28 13:08:22.997 INFO [stderr] warning: function is never used: `takes_and_gives_back` Nov 28 13:08:22.997 INFO [stderr] --> src/chapter3/bin/main.rs:124:1 Nov 28 13:08:22.997 INFO [stderr] | Nov 28 13:08:22.997 INFO [stderr] 124 | fn takes_and_gives_back(a_string: String) -> String { Nov 28 13:08:22.997 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 28 13:08:22.997 INFO [stderr] Nov 28 13:08:22.997 INFO [stderr] warning: function is never used: `no_dangle` Nov 28 13:08:22.997 INFO [stderr] --> src/chapter3/bin/main.rs:149:1 Nov 28 13:08:22.997 INFO [stderr] | Nov 28 13:08:22.997 INFO [stderr] 149 | fn no_dangle() -> String { Nov 28 13:08:22.997 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^ Nov 28 13:08:22.997 INFO [stderr] Nov 28 13:08:22.997 INFO [stderr] warning: function is never used: `build_user` Nov 28 13:08:22.997 INFO [stderr] --> src/chapter3/bin/main.rs:187:1 Nov 28 13:08:22.997 INFO [stderr] | Nov 28 13:08:22.998 INFO [stderr] 187 | fn build_user(email: String, username: String) -> User { Nov 28 13:08:22.998 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 28 13:08:22.998 INFO [stderr] Nov 28 13:08:23.240 INFO [stderr] warning: unused variable: `s1` Nov 28 13:08:23.241 INFO [stderr] --> src/collections/bin/main.rs:99:9 Nov 28 13:08:23.241 INFO [stderr] | Nov 28 13:08:23.241 INFO [stderr] 99 | let s1 = String::from("hello"); Nov 28 13:08:23.241 INFO [stderr] | ^^ help: consider using `_s1` instead Nov 28 13:08:23.241 INFO [stderr] | Nov 28 13:08:23.241 INFO [stderr] = note: #[warn(unused_variables)] on by default Nov 28 13:08:23.241 INFO [stderr] Nov 28 13:08:23.241 INFO [stderr] warning: unused variable: `scores` Nov 28 13:08:23.241 INFO [stderr] --> src/collections/bin/main.rs:143:9 Nov 28 13:08:23.241 INFO [stderr] | Nov 28 13:08:23.241 INFO [stderr] 143 | let scores: HashMap<_, _> = zipped.collect(); Nov 28 13:08:23.241 INFO [stderr] | ^^^^^^ help: consider using `_scores` instead Nov 28 13:08:23.241 INFO [stderr] Nov 28 13:08:23.247 INFO [stderr] warning: unused variable: `black` Nov 28 13:08:23.247 INFO [stderr] --> src/chapter3/bin/main.rs:107:9 Nov 28 13:08:23.247 INFO [stderr] | Nov 28 13:08:23.247 INFO [stderr] 107 | let black = Color(0, 0, 0); Nov 28 13:08:23.247 INFO [stderr] | ^^^^^ help: consider using `_black` instead Nov 28 13:08:23.247 INFO [stderr] | Nov 28 13:08:23.247 INFO [stderr] = note: #[warn(unused_variables)] on by default Nov 28 13:08:23.247 INFO [stderr] Nov 28 13:08:23.247 INFO [stderr] warning: unused variable: `origin` Nov 28 13:08:23.247 INFO [stderr] --> src/chapter3/bin/main.rs:108:9 Nov 28 13:08:23.247 INFO [stderr] | Nov 28 13:08:23.247 INFO [stderr] 108 | let origin = Point(0, 0, 0); Nov 28 13:08:23.247 INFO [stderr] | ^^^^^^ help: consider using `_origin` instead Nov 28 13:08:23.247 INFO [stderr] Nov 28 13:08:23.304 INFO [stderr] warning: variable does not need to be mutable Nov 28 13:08:23.304 INFO [stderr] --> src/collections/bin/main.rs:56:9 Nov 28 13:08:23.304 INFO [stderr] | Nov 28 13:08:23.304 INFO [stderr] 56 | let mut s = String::new(); Nov 28 13:08:23.304 INFO [stderr] | ----^ Nov 28 13:08:23.304 INFO [stderr] | | Nov 28 13:08:23.304 INFO [stderr] | help: remove this `mut` Nov 28 13:08:23.304 INFO [stderr] | Nov 28 13:08:23.304 INFO [stderr] = note: #[warn(unused_mut)] on by default Nov 28 13:08:23.304 INFO [stderr] Nov 28 13:08:23.364 INFO [stderr] warning: function is never used: `gives_ownership` Nov 28 13:08:23.364 INFO [stderr] --> src/chapter3/bin/main.rs:119:1 Nov 28 13:08:23.364 INFO [stderr] | Nov 28 13:08:23.364 INFO [stderr] 119 | fn gives_ownership() -> String { Nov 28 13:08:23.364 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 28 13:08:23.364 INFO [stderr] | Nov 28 13:08:23.364 INFO [stderr] = note: #[warn(dead_code)] on by default Nov 28 13:08:23.364 INFO [stderr] Nov 28 13:08:23.364 INFO [stderr] warning: function is never used: `takes_and_gives_back` Nov 28 13:08:23.364 INFO [stderr] --> src/chapter3/bin/main.rs:124:1 Nov 28 13:08:23.364 INFO [stderr] | Nov 28 13:08:23.364 INFO [stderr] 124 | fn takes_and_gives_back(a_string: String) -> String { Nov 28 13:08:23.364 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 28 13:08:23.364 INFO [stderr] Nov 28 13:08:23.365 INFO [stderr] warning: function is never used: `no_dangle` Nov 28 13:08:23.365 INFO [stderr] --> src/chapter3/bin/main.rs:149:1 Nov 28 13:08:23.365 INFO [stderr] | Nov 28 13:08:23.365 INFO [stderr] 149 | fn no_dangle() -> String { Nov 28 13:08:23.365 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^ Nov 28 13:08:23.365 INFO [stderr] Nov 28 13:08:23.365 INFO [stderr] warning: function is never used: `build_user` Nov 28 13:08:23.365 INFO [stderr] --> src/chapter3/bin/main.rs:187:1 Nov 28 13:08:23.365 INFO [stderr] | Nov 28 13:08:23.365 INFO [stderr] 187 | fn build_user(email: String, username: String) -> User { Nov 28 13:08:23.365 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 28 13:08:23.365 INFO [stderr] Nov 28 13:08:24.032 INFO [stderr] warning: unused variable: `v` Nov 28 13:08:24.032 INFO [stderr] --> src/errors/bin/main.rs:5:9 Nov 28 13:08:24.032 INFO [stderr] | Nov 28 13:08:24.032 INFO [stderr] 5 | let v = vec![1, 2, 3]; Nov 28 13:08:24.032 INFO [stderr] | ^ help: consider using `_v` instead Nov 28 13:08:24.032 INFO [stderr] | Nov 28 13:08:24.032 INFO [stderr] = note: #[warn(unused_variables)] on by default Nov 28 13:08:24.032 INFO [stderr] Nov 28 13:08:24.032 INFO [stderr] warning: unused variable: `f` Nov 28 13:08:24.032 INFO [stderr] --> src/errors/bin/main.rs:23:9 Nov 28 13:08:24.032 INFO [stderr] | Nov 28 13:08:24.032 INFO [stderr] 23 | let f = match f { Nov 28 13:08:24.032 INFO [stderr] | ^ help: consider using `_f` instead Nov 28 13:08:24.032 INFO [stderr] Nov 28 13:08:24.056 INFO [stderr] warning: function is never used: `read_username_from_file` Nov 28 13:08:24.056 INFO [stderr] --> src/errors/bin/main.rs:44:1 Nov 28 13:08:24.056 INFO [stderr] | Nov 28 13:08:24.056 INFO [stderr] 44 | fn read_username_from_file() -> Result { Nov 28 13:08:24.056 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 28 13:08:24.056 INFO [stderr] | Nov 28 13:08:24.056 INFO [stderr] = note: #[warn(dead_code)] on by default Nov 28 13:08:24.056 INFO [stderr] Nov 28 13:08:24.056 INFO [stderr] warning: function is never used: `read_username_from_file2` Nov 28 13:08:24.056 INFO [stderr] --> src/errors/bin/main.rs:60:1 Nov 28 13:08:24.056 INFO [stderr] | Nov 28 13:08:24.056 INFO [stderr] 60 | fn read_username_from_file2() -> Result { Nov 28 13:08:24.056 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 28 13:08:24.056 INFO [stderr] Nov 28 13:08:24.068 INFO [stderr] warning: function `openFile` should have a snake case name such as `open_file` Nov 28 13:08:24.068 INFO [stderr] --> src/errors/bin/main.rs:20:1 Nov 28 13:08:24.068 INFO [stderr] | Nov 28 13:08:24.068 INFO [stderr] 20 | / fn openFile() { Nov 28 13:08:24.068 INFO [stderr] 21 | | let f = File::open("hello.txt"); Nov 28 13:08:24.068 INFO [stderr] 22 | | Nov 28 13:08:24.068 INFO [stderr] 23 | | let f = match f { Nov 28 13:08:24.068 INFO [stderr] ... | Nov 28 13:08:24.068 INFO [stderr] 40 | | }; Nov 28 13:08:24.068 INFO [stderr] 41 | | } Nov 28 13:08:24.068 INFO [stderr] | |_^ Nov 28 13:08:24.068 INFO [stderr] | Nov 28 13:08:24.068 INFO [stderr] = note: #[warn(non_snake_case)] on by default Nov 28 13:08:24.068 INFO [stderr] Nov 28 13:08:24.107 INFO [stderr] warning: function is never used: `max_ch` Nov 28 13:08:24.107 INFO [stderr] --> src/generics/bin/main.rs:51:1 Nov 28 13:08:24.107 INFO [stderr] | Nov 28 13:08:24.107 INFO [stderr] 51 | fn max_ch(list: &[char]) -> Option { Nov 28 13:08:24.108 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 28 13:08:24.108 INFO [stderr] | Nov 28 13:08:24.108 INFO [stderr] = note: #[warn(dead_code)] on by default Nov 28 13:08:24.108 INFO [stderr] Nov 28 13:08:24.258 INFO [stderr] warning: unused variable: `t` Nov 28 13:08:24.258 INFO [stderr] --> src/traits/bin/main.rs:83:24 Nov 28 13:08:24.259 INFO [stderr] | Nov 28 13:08:24.259 INFO [stderr] 83 | fn some_function(t: T, u: U) -> i32 Nov 28 13:08:24.259 INFO [stderr] | ^ help: consider using `_t` instead Nov 28 13:08:24.272 INFO [stderr] | Nov 28 13:08:24.273 INFO [stderr] = note: #[warn(unused_variables)] on by default Nov 28 13:08:24.273 INFO [stderr] Nov 28 13:08:24.273 INFO [stderr] warning: unused variable: `u` Nov 28 13:08:24.274 INFO [stderr] --> src/traits/bin/main.rs:83:30 Nov 28 13:08:24.274 INFO [stderr] | Nov 28 13:08:24.274 INFO [stderr] 83 | fn some_function(t: T, u: U) -> i32 Nov 28 13:08:24.275 INFO [stderr] | ^ help: consider using `_u` instead Nov 28 13:08:24.275 INFO [stderr] Nov 28 13:08:24.286 INFO [stderr] warning: function is never used: `some_function` Nov 28 13:08:24.286 INFO [stderr] --> src/traits/bin/main.rs:83:1 Nov 28 13:08:24.286 INFO [stderr] | Nov 28 13:08:24.287 INFO [stderr] 83 | / fn some_function(t: T, u: U) -> i32 Nov 28 13:08:24.287 INFO [stderr] 84 | | where T: std::fmt::Display + Clone, Nov 28 13:08:24.287 INFO [stderr] 85 | | U: Clone + std::fmt::Debug { Nov 28 13:08:24.288 INFO [stderr] 86 | | 1 Nov 28 13:08:24.288 INFO [stderr] 87 | | } Nov 28 13:08:24.288 INFO [stderr] | |_^ Nov 28 13:08:24.289 INFO [stderr] | Nov 28 13:08:24.289 INFO [stderr] = note: #[warn(dead_code)] on by default Nov 28 13:08:24.289 INFO [stderr] Nov 28 13:08:24.290 INFO [stderr] warning: struct is never constructed: `Pair` Nov 28 13:08:24.290 INFO [stderr] --> src/traits/bin/main.rs:92:1 Nov 28 13:08:24.290 INFO [stderr] | Nov 28 13:08:24.291 INFO [stderr] 92 | struct Pair { Nov 28 13:08:24.291 INFO [stderr] | ^^^^^^^^^^^^^^ Nov 28 13:08:24.291 INFO [stderr] Nov 28 13:08:24.291 INFO [stderr] warning: method is never used: `new` Nov 28 13:08:24.292 INFO [stderr] --> src/traits/bin/main.rs:98:5 Nov 28 13:08:24.292 INFO [stderr] | Nov 28 13:08:24.292 INFO [stderr] 98 | fn new(x: T, y: T) -> Self { Nov 28 13:08:24.293 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 28 13:08:24.293 INFO [stderr] Nov 28 13:08:24.293 INFO [stderr] warning: method is never used: `cmp_display` Nov 28 13:08:24.294 INFO [stderr] --> src/traits/bin/main.rs:107:5 Nov 28 13:08:24.294 INFO [stderr] | Nov 28 13:08:24.294 INFO [stderr] 107 | fn cmp_display(&self) { Nov 28 13:08:24.295 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^ Nov 28 13:08:24.295 INFO [stderr] Nov 28 13:08:24.440 INFO [stderr] warning: unused variable: `ip_type` Nov 28 13:08:24.440 INFO [stderr] --> src/chapter6/bin/main.rs:1:10 Nov 28 13:08:24.440 INFO [stderr] | Nov 28 13:08:24.440 INFO [stderr] 1 | fn route(ip_type: IpAddrKind) { } Nov 28 13:08:24.440 INFO [stderr] | ^^^^^^^ help: consider using `_ip_type` instead Nov 28 13:08:24.440 INFO [stderr] | Nov 28 13:08:24.440 INFO [stderr] = note: #[warn(unused_variables)] on by default Nov 28 13:08:24.440 INFO [stderr] Nov 28 13:08:24.441 INFO [stderr] warning: unused variable: `x` Nov 28 13:08:24.441 INFO [stderr] --> src/chapter6/bin/main.rs:32:35 Nov 28 13:08:24.441 INFO [stderr] | Nov 28 13:08:24.441 INFO [stderr] 32 | let x = some_string.and_then(|x: &str| Some("sf")); Nov 28 13:08:24.441 INFO [stderr] | ^ help: consider using `_x` instead Nov 28 13:08:24.441 INFO [stderr] Nov 28 13:08:24.441 INFO [stderr] warning: unused variable: `six` Nov 28 13:08:24.441 INFO [stderr] --> src/chapter6/bin/main.rs:11:9 Nov 28 13:08:24.441 INFO [stderr] | Nov 28 13:08:24.441 INFO [stderr] 11 | let six = IpAddrKind::V6; Nov 28 13:08:24.441 INFO [stderr] | ^^^ help: consider using `_six` instead Nov 28 13:08:24.441 INFO [stderr] Nov 28 13:08:24.441 INFO [stderr] warning: unused variable: `home` Nov 28 13:08:24.441 INFO [stderr] --> src/chapter6/bin/main.rs:18:9 Nov 28 13:08:24.441 INFO [stderr] | Nov 28 13:08:24.441 INFO [stderr] 18 | let home = IpAddr::V4(String::from("127.0.0.1")); Nov 28 13:08:24.441 INFO [stderr] | ^^^^ help: consider using `_home` instead Nov 28 13:08:24.441 INFO [stderr] Nov 28 13:08:24.441 INFO [stderr] warning: unused variable: `loopback` Nov 28 13:08:24.441 INFO [stderr] --> src/chapter6/bin/main.rs:19:9 Nov 28 13:08:24.441 INFO [stderr] | Nov 28 13:08:24.441 INFO [stderr] 19 | let loopback = IpAddr::V6(String::from("::1")); Nov 28 13:08:24.441 INFO [stderr] | ^^^^^^^^ help: consider using `_loopback` instead Nov 28 13:08:24.441 INFO [stderr] Nov 28 13:08:24.441 INFO [stderr] warning: unused variable: `home` Nov 28 13:08:24.441 INFO [stderr] --> src/chapter6/bin/main.rs:21:9 Nov 28 13:08:24.441 INFO [stderr] | Nov 28 13:08:24.441 INFO [stderr] 21 | let home = IpAddr2::V4(127, 0, 0, 1); Nov 28 13:08:24.441 INFO [stderr] | ^^^^ help: consider using `_home` instead Nov 28 13:08:24.441 INFO [stderr] Nov 28 13:08:24.441 INFO [stderr] warning: unused variable: `loopback` Nov 28 13:08:24.441 INFO [stderr] --> src/chapter6/bin/main.rs:22:9 Nov 28 13:08:24.441 INFO [stderr] | Nov 28 13:08:24.441 INFO [stderr] 22 | let loopback = IpAddr2::V6(String::from("::1")); Nov 28 13:08:24.441 INFO [stderr] | ^^^^^^^^ help: consider using `_loopback` instead Nov 28 13:08:24.441 INFO [stderr] Nov 28 13:08:24.441 INFO [stderr] warning: variable `count` is assigned to, but never used Nov 28 13:08:24.441 INFO [stderr] --> src/chapter6/bin/main.rs:72:13 Nov 28 13:08:24.441 INFO [stderr] | Nov 28 13:08:24.441 INFO [stderr] 72 | let mut count = 0; Nov 28 13:08:24.441 INFO [stderr] | ^^^^^ Nov 28 13:08:24.441 INFO [stderr] | Nov 28 13:08:24.441 INFO [stderr] = note: consider using `_count` instead Nov 28 13:08:24.441 INFO [stderr] Nov 28 13:08:24.441 INFO [stderr] warning: value assigned to `count` is never read Nov 28 13:08:24.441 INFO [stderr] --> src/chapter6/bin/main.rs:76:9 Nov 28 13:08:24.441 INFO [stderr] | Nov 28 13:08:24.441 INFO [stderr] 76 | count += 1; Nov 28 13:08:24.441 INFO [stderr] | ^^^^^ Nov 28 13:08:24.441 INFO [stderr] | Nov 28 13:08:24.441 INFO [stderr] = note: #[warn(unused_assignments)] on by default Nov 28 13:08:24.441 INFO [stderr] Nov 28 13:08:24.456 INFO [stderr] warning: variant is never constructed: `Quit` Nov 28 13:08:24.456 INFO [stderr] --> src/chapter6/bin/main.rs:94:5 Nov 28 13:08:24.456 INFO [stderr] | Nov 28 13:08:24.456 INFO [stderr] 94 | Quit, Nov 28 13:08:24.456 INFO [stderr] | ^^^^ Nov 28 13:08:24.456 INFO [stderr] | Nov 28 13:08:24.456 INFO [stderr] = note: #[warn(dead_code)] on by default Nov 28 13:08:24.456 INFO [stderr] Nov 28 13:08:24.456 INFO [stderr] warning: variant is never constructed: `Move` Nov 28 13:08:24.456 INFO [stderr] --> src/chapter6/bin/main.rs:95:5 Nov 28 13:08:24.456 INFO [stderr] | Nov 28 13:08:24.456 INFO [stderr] 95 | Move { x: i32, y: i32 }, Nov 28 13:08:24.456 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^ Nov 28 13:08:24.456 INFO [stderr] Nov 28 13:08:24.456 INFO [stderr] warning: variant is never constructed: `ChangeColor` Nov 28 13:08:24.456 INFO [stderr] --> src/chapter6/bin/main.rs:97:5 Nov 28 13:08:24.456 INFO [stderr] | Nov 28 13:08:24.456 INFO [stderr] 97 | ChangeColor(i32, i32, i32), Nov 28 13:08:24.456 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 28 13:08:24.457 INFO [stderr] Nov 28 13:08:24.457 INFO [stderr] warning: variant is never constructed: `Alaska` Nov 28 13:08:24.457 INFO [stderr] --> src/chapter6/bin/main.rs:115:5 Nov 28 13:08:24.457 INFO [stderr] | Nov 28 13:08:24.457 INFO [stderr] 115 | Alaska, Nov 28 13:08:24.457 INFO [stderr] | ^^^^^^ Nov 28 13:08:24.457 INFO [stderr] Nov 28 13:08:24.457 INFO [stderr] warning: variant is never constructed: `Nickel` Nov 28 13:08:24.457 INFO [stderr] --> src/chapter6/bin/main.rs:121:5 Nov 28 13:08:24.457 INFO [stderr] | Nov 28 13:08:24.457 INFO [stderr] 121 | Nickel, Nov 28 13:08:24.457 INFO [stderr] | ^^^^^^ Nov 28 13:08:24.457 INFO [stderr] Nov 28 13:08:24.484 INFO [stderr] Finished dev [unoptimized + debuginfo] target(s) in 9.10s Nov 28 13:08:24.492 INFO [stderr] su: No module specific data is present Nov 28 13:08:25.296 INFO running `"docker" "inspect" "998680b515d537423f7f43da9f2233536fdc1784f35f7ffab32c444b44d3ef2b"` Nov 28 13:08:25.672 INFO running `"docker" "rm" "-f" "998680b515d537423f7f43da9f2233536fdc1784f35f7ffab32c444b44d3ef2b"` Nov 28 13:08:25.965 INFO [stdout] 998680b515d537423f7f43da9f2233536fdc1784f35f7ffab32c444b44d3ef2b