Nov 17 12:09:36.825 INFO testing Ryan-Git/learn-rust against master#6b9b97bd9b704f85f0184f7a213cc4d62bd9654c for pr-55982 Nov 17 12:09:36.825 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55982/worker-1/master#6b9b97bd9b704f85f0184f7a213cc4d62bd9654c:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/pr-55982/master#6b9b97bd9b704f85f0184f7a213cc4d62bd9654c:/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 +6b9b97bd9b704f85f0184f7a213cc4d62bd9654c-alt build --frozen" "-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 17 12:09:37.159 INFO [stdout] 3aa256f2d592108cc9363fae1232fffa66f39ec4383536dd7f299b54b304e9bc Nov 17 12:09:37.165 INFO running `"docker" "start" "-a" "3aa256f2d592108cc9363fae1232fffa66f39ec4383536dd7f299b54b304e9bc"` Nov 17 12:09:37.645 INFO [stderr] usermod: no changes Nov 17 12:09:37.677 INFO [stderr] Compiling learn-rust v0.1.0 (/source) Nov 17 12:09:38.018 INFO [stderr] warning: unused imports: `Cons`, `Nil` Nov 17 12:09:38.018 INFO [stderr] --> src/ch15_smart_pointers/ch15_4_rc.rs:11:18 Nov 17 12:09:38.018 INFO [stderr] | Nov 17 12:09:38.018 INFO [stderr] 11 | use self::List::{Cons, Nil}; Nov 17 12:09:38.018 INFO [stderr] | ^^^^ ^^^ Nov 17 12:09:38.018 INFO [stderr] | Nov 17 12:09:38.018 INFO [stderr] = note: #[warn(unused_imports)] on by default Nov 17 12:09:38.018 INFO [stderr] Nov 17 12:09:38.018 INFO [stderr] warning: unused imports: `Cons`, `Nil` Nov 17 12:09:38.018 INFO [stderr] --> src/ch15_smart_pointers/ch15_5_ref_cell.rs:41:18 Nov 17 12:09:38.018 INFO [stderr] | Nov 17 12:09:38.018 INFO [stderr] 41 | use self::List::{Cons, Nil}; Nov 17 12:09:38.018 INFO [stderr] | ^^^^ ^^^ Nov 17 12:09:38.018 INFO [stderr] Nov 17 12:09:38.018 INFO [stderr] warning: unused import: `std::thread` Nov 17 12:09:38.018 INFO [stderr] --> src/ch16_concurrency/ch16_1_threads.rs:1:5 Nov 17 12:09:38.018 INFO [stderr] | Nov 17 12:09:38.018 INFO [stderr] 1 | use std::thread; Nov 17 12:09:38.018 INFO [stderr] | ^^^^^^^^^^^ Nov 17 12:09:38.018 INFO [stderr] Nov 17 12:09:38.018 INFO [stderr] warning: unused import: `std::sync::mpsc` Nov 17 12:09:38.018 INFO [stderr] --> src/ch16_concurrency/ch16_2_message_passing.rs:1:5 Nov 17 12:09:38.018 INFO [stderr] | Nov 17 12:09:38.018 INFO [stderr] 1 | use std::sync::mpsc; Nov 17 12:09:38.018 INFO [stderr] | ^^^^^^^^^^^^^^^ Nov 17 12:09:38.018 INFO [stderr] Nov 17 12:09:38.018 INFO [stderr] warning: unused import: `std::thread` Nov 17 12:09:38.018 INFO [stderr] --> src/ch16_concurrency/ch16_2_message_passing.rs:2:5 Nov 17 12:09:38.018 INFO [stderr] | Nov 17 12:09:38.018 INFO [stderr] 2 | use std::thread; Nov 17 12:09:38.018 INFO [stderr] | ^^^^^^^^^^^ Nov 17 12:09:38.018 INFO [stderr] Nov 17 12:09:38.018 INFO [stderr] warning: unused import: `std::time::Duration` Nov 17 12:09:38.018 INFO [stderr] --> src/ch16_concurrency/ch16_2_message_passing.rs:3:5 Nov 17 12:09:38.018 INFO [stderr] | Nov 17 12:09:38.018 INFO [stderr] 3 | use std::time::Duration; Nov 17 12:09:38.018 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^ Nov 17 12:09:38.018 INFO [stderr] Nov 17 12:09:38.018 INFO [stderr] warning: unused imports: `Arc`, `Mutex` Nov 17 12:09:38.018 INFO [stderr] --> src/ch16_concurrency/ch16_3_shared_state.rs:1:17 Nov 17 12:09:38.018 INFO [stderr] | Nov 17 12:09:38.018 INFO [stderr] 1 | use std::sync::{Mutex, Arc}; Nov 17 12:09:38.018 INFO [stderr] | ^^^^^ ^^^ Nov 17 12:09:38.018 INFO [stderr] Nov 17 12:09:38.018 INFO [stderr] warning: unused import: `std::thread` Nov 17 12:09:38.018 INFO [stderr] --> src/ch16_concurrency/ch16_3_shared_state.rs:2:5 Nov 17 12:09:38.018 INFO [stderr] | Nov 17 12:09:38.018 INFO [stderr] 2 | use std::thread; Nov 17 12:09:38.018 INFO [stderr] | ^^^^^^^^^^^ Nov 17 12:09:38.018 INFO [stderr] Nov 17 12:09:38.018 INFO [stderr] warning: unused import: `std::rc::Rc` Nov 17 12:09:38.018 INFO [stderr] --> src/ch16_concurrency/ch16_3_shared_state.rs:3:5 Nov 17 12:09:38.018 INFO [stderr] | Nov 17 12:09:38.018 INFO [stderr] 3 | use std::rc::Rc; Nov 17 12:09:38.018 INFO [stderr] | ^^^^^^^^^^^ Nov 17 12:09:38.018 INFO [stderr] Nov 17 12:09:38.023 INFO [stderr] warning: unused import: `std::io` Nov 17 12:09:38.023 INFO [stderr] --> src/ch19_advanced_feature/ch19_4_advanced_types.rs:4:5 Nov 17 12:09:38.023 INFO [stderr] | Nov 17 12:09:38.023 INFO [stderr] 4 | use std::io; Nov 17 12:09:38.023 INFO [stderr] | ^^^^^^^ Nov 17 12:09:38.023 INFO [stderr] Nov 17 12:09:38.191 INFO [stderr] warning: unused variable: `ip_type` Nov 17 12:09:38.191 INFO [stderr] --> src/ch6_enums.rs:53:10 Nov 17 12:09:38.191 INFO [stderr] | Nov 17 12:09:38.191 INFO [stderr] 53 | fn route(ip_type: IpAddrKind) {} Nov 17 12:09:38.191 INFO [stderr] | ^^^^^^^ help: consider using `_ip_type` instead Nov 17 12:09:38.191 INFO [stderr] | Nov 17 12:09:38.191 INFO [stderr] = note: #[warn(unused_variables)] on by default Nov 17 12:09:38.191 INFO [stderr] Nov 17 12:09:38.191 INFO [stderr] warning: unused variable: `t` Nov 17 12:09:38.191 INFO [stderr] --> src/ch10_generic_trait_lifetime.rs:113:58 Nov 17 12:09:38.191 INFO [stderr] | Nov 17 12:09:38.191 INFO [stderr] 113 | fn some_function(t: T, u: U) -> i32 { Nov 17 12:09:38.191 INFO [stderr] | ^ help: consider using `_t` instead Nov 17 12:09:38.192 INFO [stderr] Nov 17 12:09:38.192 INFO [stderr] warning: unused variable: `u` Nov 17 12:09:38.192 INFO [stderr] --> src/ch10_generic_trait_lifetime.rs:113:64 Nov 17 12:09:38.192 INFO [stderr] | Nov 17 12:09:38.192 INFO [stderr] 113 | fn some_function(t: T, u: U) -> i32 { Nov 17 12:09:38.192 INFO [stderr] | ^ help: consider using `_u` instead Nov 17 12:09:38.192 INFO [stderr] Nov 17 12:09:38.192 INFO [stderr] warning: unused variable: `t` Nov 17 12:09:38.192 INFO [stderr] --> src/ch10_generic_trait_lifetime.rs:117:25 Nov 17 12:09:38.192 INFO [stderr] | Nov 17 12:09:38.192 INFO [stderr] 117 | fn some_function2(t: T, u: U) -> i32 Nov 17 12:09:38.192 INFO [stderr] | ^ help: consider using `_t` instead Nov 17 12:09:38.192 INFO [stderr] Nov 17 12:09:38.192 INFO [stderr] warning: unused variable: `u` Nov 17 12:09:38.192 INFO [stderr] --> src/ch10_generic_trait_lifetime.rs:117:31 Nov 17 12:09:38.192 INFO [stderr] | Nov 17 12:09:38.192 INFO [stderr] 117 | fn some_function2(t: T, u: U) -> i32 Nov 17 12:09:38.192 INFO [stderr] | ^ help: consider using `_u` instead Nov 17 12:09:38.192 INFO [stderr] Nov 17 12:09:38.192 INFO [stderr] warning: unused variable: `c1` Nov 17 12:09:38.192 INFO [stderr] --> src/ch14_cargo_crates.rs:37:16 Nov 17 12:09:38.192 INFO [stderr] | Nov 17 12:09:38.192 INFO [stderr] 37 | pub fn mix(c1: PrimaryColor, c2: PrimaryColor) -> SecondaryColor { Nov 17 12:09:38.192 INFO [stderr] | ^^ help: consider using `_c1` instead Nov 17 12:09:38.192 INFO [stderr] Nov 17 12:09:38.192 INFO [stderr] warning: unused variable: `c2` Nov 17 12:09:38.192 INFO [stderr] --> src/ch14_cargo_crates.rs:37:34 Nov 17 12:09:38.192 INFO [stderr] | Nov 17 12:09:38.192 INFO [stderr] 37 | pub fn mix(c1: PrimaryColor, c2: PrimaryColor) -> SecondaryColor { Nov 17 12:09:38.192 INFO [stderr] | ^^ help: consider using `_c2` instead Nov 17 12:09:38.192 INFO [stderr] Nov 17 12:09:38.192 INFO [stderr] warning: unused variable: `x` Nov 17 12:09:38.192 INFO [stderr] --> src/ch18_pattern_match.rs:245:8 Nov 17 12:09:38.192 INFO [stderr] | Nov 17 12:09:38.192 INFO [stderr] 245 | fn foo(x: i32) { Nov 17 12:09:38.192 INFO [stderr] | ^ help: consider using `_x` instead Nov 17 12:09:38.192 INFO [stderr] Nov 17 12:09:38.192 INFO [stderr] warning: unused variable: `graph` Nov 17 12:09:38.192 INFO [stderr] --> src/ch19_advanced_feature/ch19_3_advanced_traits.rs:19:37 Nov 17 12:09:38.192 INFO [stderr] | Nov 17 12:09:38.192 INFO [stderr] 19 | fn gDistance>(graph: &G, start: &N, end: &N) -> u32 { 1 } Nov 17 12:09:38.192 INFO [stderr] | ^^^^^ help: consider using `_graph` instead Nov 17 12:09:38.192 INFO [stderr] Nov 17 12:09:38.192 INFO [stderr] warning: unused variable: `start` Nov 17 12:09:38.192 INFO [stderr] --> src/ch19_advanced_feature/ch19_3_advanced_traits.rs:19:48 Nov 17 12:09:38.192 INFO [stderr] | Nov 17 12:09:38.192 INFO [stderr] 19 | fn gDistance>(graph: &G, start: &N, end: &N) -> u32 { 1 } Nov 17 12:09:38.192 INFO [stderr] | ^^^^^ help: consider using `_start` instead Nov 17 12:09:38.192 INFO [stderr] Nov 17 12:09:38.192 INFO [stderr] warning: unused variable: `end` Nov 17 12:09:38.192 INFO [stderr] --> src/ch19_advanced_feature/ch19_3_advanced_traits.rs:19:59 Nov 17 12:09:38.192 INFO [stderr] | Nov 17 12:09:38.192 INFO [stderr] 19 | fn gDistance>(graph: &G, start: &N, end: &N) -> u32 { 1 } Nov 17 12:09:38.192 INFO [stderr] | ^^^ help: consider using `_end` instead Nov 17 12:09:38.192 INFO [stderr] Nov 17 12:09:38.192 INFO [stderr] warning: unused variable: `graph` Nov 17 12:09:38.192 INFO [stderr] --> src/ch19_advanced_feature/ch19_3_advanced_traits.rs:28:25 Nov 17 12:09:38.192 INFO [stderr] | Nov 17 12:09:38.192 INFO [stderr] 28 | fn aDistance(graph: &G, start: &G::Node, end: &G::Node) -> u32 { Nov 17 12:09:38.192 INFO [stderr] | ^^^^^ help: consider using `_graph` instead Nov 17 12:09:38.192 INFO [stderr] Nov 17 12:09:38.192 INFO [stderr] warning: unused variable: `start` Nov 17 12:09:38.192 INFO [stderr] --> src/ch19_advanced_feature/ch19_3_advanced_traits.rs:28:36 Nov 17 12:09:38.192 INFO [stderr] | Nov 17 12:09:38.192 INFO [stderr] 28 | fn aDistance(graph: &G, start: &G::Node, end: &G::Node) -> u32 { Nov 17 12:09:38.192 INFO [stderr] | ^^^^^ help: consider using `_start` instead Nov 17 12:09:38.192 INFO [stderr] Nov 17 12:09:38.192 INFO [stderr] warning: unused variable: `end` Nov 17 12:09:38.192 INFO [stderr] --> src/ch19_advanced_feature/ch19_3_advanced_traits.rs:28:53 Nov 17 12:09:38.192 INFO [stderr] | Nov 17 12:09:38.192 INFO [stderr] 28 | fn aDistance(graph: &G, start: &G::Node, end: &G::Node) -> u32 { Nov 17 12:09:38.192 INFO [stderr] | ^^^ help: consider using `_end` instead Nov 17 12:09:38.192 INFO [stderr] Nov 17 12:09:38.192 INFO [stderr] warning: unused variable: `graph` Nov 17 12:09:38.192 INFO [stderr] --> src/ch19_advanced_feature/ch19_3_advanced_traits.rs:33:19 Nov 17 12:09:38.192 INFO [stderr] | Nov 17 12:09:38.192 INFO [stderr] 33 | fn distance(graph: &GGraph, start: &N, end: &N) -> u32 { 1 } Nov 17 12:09:38.192 INFO [stderr] | ^^^^^ help: consider using `_graph` instead Nov 17 12:09:38.192 INFO [stderr] Nov 17 12:09:38.192 INFO [stderr] warning: unused variable: `start` Nov 17 12:09:38.192 INFO [stderr] --> src/ch19_advanced_feature/ch19_3_advanced_traits.rs:33:41 Nov 17 12:09:38.193 INFO [stderr] | Nov 17 12:09:38.193 INFO [stderr] 33 | fn distance(graph: &GGraph, start: &N, end: &N) -> u32 { 1 } Nov 17 12:09:38.193 INFO [stderr] | ^^^^^ help: consider using `_start` instead Nov 17 12:09:38.193 INFO [stderr] Nov 17 12:09:38.193 INFO [stderr] warning: unused variable: `end` Nov 17 12:09:38.193 INFO [stderr] --> src/ch19_advanced_feature/ch19_3_advanced_traits.rs:33:52 Nov 17 12:09:38.193 INFO [stderr] | Nov 17 12:09:38.193 INFO [stderr] 33 | fn distance(graph: &GGraph, start: &N, end: &N) -> u32 { 1 } Nov 17 12:09:38.193 INFO [stderr] | ^^^ help: consider using `_end` instead Nov 17 12:09:38.193 INFO [stderr] Nov 17 12:09:38.193 INFO [stderr] warning: unused variable: `graph` Nov 17 12:09:38.193 INFO [stderr] --> src/ch19_advanced_feature/ch19_3_advanced_traits.rs:35:13 Nov 17 12:09:38.193 INFO [stderr] | Nov 17 12:09:38.193 INFO [stderr] 35 | fn traverse(graph: &AGraph) {} Nov 17 12:09:38.193 INFO [stderr] | ^^^^^ help: consider using `_graph` instead Nov 17 12:09:38.193 INFO [stderr] Nov 17 12:09:38.193 INFO [stderr] warning: unused variable: `t` Nov 17 12:09:38.193 INFO [stderr] --> src/ch19_advanced_feature/ch19_4_advanced_types.rs:18:15 Nov 17 12:09:38.193 INFO [stderr] | Nov 17 12:09:38.193 INFO [stderr] 18 | fn generic(t: T){} Nov 17 12:09:38.193 INFO [stderr] | ^ help: consider using `_t` instead Nov 17 12:09:38.193 INFO [stderr] Nov 17 12:09:38.193 INFO [stderr] warning: unused variable: `t` Nov 17 12:09:38.193 INFO [stderr] --> src/ch19_advanced_feature/ch19_4_advanced_types.rs:19:23 Nov 17 12:09:38.193 INFO [stderr] | Nov 17 12:09:38.193 INFO [stderr] 19 | fn generic2(t: T) {} Nov 17 12:09:38.193 INFO [stderr] | ^ help: consider using `_t` instead Nov 17 12:09:38.193 INFO [stderr] Nov 17 12:09:38.193 INFO [stderr] warning: unused variable: `t` Nov 17 12:09:38.193 INFO [stderr] --> src/ch19_advanced_feature/ch19_4_advanced_types.rs:20:24 Nov 17 12:09:38.193 INFO [stderr] | Nov 17 12:09:38.193 INFO [stderr] 20 | fn generic3(t: &T) {} Nov 17 12:09:38.193 INFO [stderr] | ^ help: consider using `_t` instead Nov 17 12:09:38.193 INFO [stderr] Nov 17 12:09:38.193 INFO [stderr] warning: unused variable: `post` Nov 17 12:09:38.193 INFO [stderr] --> src/ch17_oop/mod.rs:184:27 Nov 17 12:09:38.193 INFO [stderr] | Nov 17 12:09:38.193 INFO [stderr] 184 | fn content<'a>(&self, post: &'a Post) -> &'a str { Nov 17 12:09:38.193 INFO [stderr] | ^^^^ help: consider using `_post` instead Nov 17 12:09:38.193 INFO [stderr] Nov 17 12:09:38.193 INFO [stderr] warning: unused variable: `content` Nov 17 12:09:38.193 INFO [stderr] --> src/ch17_oop/mod.rs:188:24 Nov 17 12:09:38.193 INFO [stderr] | Nov 17 12:09:38.193 INFO [stderr] 188 | fn add_text(&self, content: &mut String, text: &str) {} Nov 17 12:09:38.193 INFO [stderr] | ^^^^^^^ help: consider using `_content` instead Nov 17 12:09:38.193 INFO [stderr] Nov 17 12:09:38.193 INFO [stderr] warning: unused variable: `text` Nov 17 12:09:38.193 INFO [stderr] --> src/ch17_oop/mod.rs:188:46 Nov 17 12:09:38.193 INFO [stderr] | Nov 17 12:09:38.193 INFO [stderr] 188 | fn add_text(&self, content: &mut String, text: &str) {} Nov 17 12:09:38.193 INFO [stderr] | ^^^^ help: consider using `_text` instead Nov 17 12:09:38.193 INFO [stderr] Nov 17 12:09:38.250 INFO [stderr] warning: function is never used: `takes_ownership` Nov 17 12:09:38.250 INFO [stderr] --> src/ch4_ownership.rs:105:1 Nov 17 12:09:38.250 INFO [stderr] | Nov 17 12:09:38.250 INFO [stderr] 105 | fn takes_ownership(some_string: String) { Nov 17 12:09:38.250 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 17 12:09:38.250 INFO [stderr] | Nov 17 12:09:38.250 INFO [stderr] = note: #[warn(dead_code)] on by default Nov 17 12:09:38.251 INFO [stderr] Nov 17 12:09:38.251 INFO [stderr] warning: function is never used: `makes_copy` Nov 17 12:09:38.251 INFO [stderr] --> src/ch4_ownership.rs:111:1 Nov 17 12:09:38.251 INFO [stderr] | Nov 17 12:09:38.251 INFO [stderr] 111 | fn makes_copy(some_integer: i32) { Nov 17 12:09:38.251 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 17 12:09:38.251 INFO [stderr] Nov 17 12:09:38.251 INFO [stderr] warning: function is never used: `gives_ownership` Nov 17 12:09:38.251 INFO [stderr] --> src/ch4_ownership.rs:116:1 Nov 17 12:09:38.251 INFO [stderr] | Nov 17 12:09:38.251 INFO [stderr] 116 | fn gives_ownership() -> String { Nov 17 12:09:38.251 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 17 12:09:38.251 INFO [stderr] Nov 17 12:09:38.251 INFO [stderr] warning: function is never used: `takes_and_gives_back` Nov 17 12:09:38.251 INFO [stderr] --> src/ch4_ownership.rs:129:1 Nov 17 12:09:38.251 INFO [stderr] | Nov 17 12:09:38.251 INFO [stderr] 129 | fn takes_and_gives_back(a_string: String) -> String { Nov 17 12:09:38.251 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 17 12:09:38.251 INFO [stderr] Nov 17 12:09:38.251 INFO [stderr] warning: function is never used: `calculate_length` Nov 17 12:09:38.251 INFO [stderr] --> src/ch4_ownership.rs:136:1 Nov 17 12:09:38.251 INFO [stderr] | Nov 17 12:09:38.251 INFO [stderr] 136 | fn calculate_length(s: &String) -> usize { Nov 17 12:09:38.251 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 17 12:09:38.251 INFO [stderr] Nov 17 12:09:38.251 INFO [stderr] warning: function is never used: `change` Nov 17 12:09:38.251 INFO [stderr] --> src/ch4_ownership.rs:142:1 Nov 17 12:09:38.251 INFO [stderr] | Nov 17 12:09:38.251 INFO [stderr] 142 | fn change(some_string: &mut String) { Nov 17 12:09:38.251 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 17 12:09:38.251 INFO [stderr] Nov 17 12:09:38.256 INFO [stderr] warning: struct is never constructed: `Rectangle` Nov 17 12:09:38.256 INFO [stderr] --> src/ch5_rectangle.rs:2:1 Nov 17 12:09:38.256 INFO [stderr] | Nov 17 12:09:38.256 INFO [stderr] 2 | struct Rectangle { Nov 17 12:09:38.256 INFO [stderr] | ^^^^^^^^^^^^^^^^ Nov 17 12:09:38.256 INFO [stderr] Nov 17 12:09:38.256 INFO [stderr] warning: method is never used: `area` Nov 17 12:09:38.256 INFO [stderr] --> src/ch5_rectangle.rs:8:5 Nov 17 12:09:38.256 INFO [stderr] | Nov 17 12:09:38.256 INFO [stderr] 8 | fn area(&self) -> u32 { Nov 17 12:09:38.256 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^ Nov 17 12:09:38.256 INFO [stderr] Nov 17 12:09:38.256 INFO [stderr] warning: method is never used: `can_hold` Nov 17 12:09:38.256 INFO [stderr] --> src/ch5_rectangle.rs:12:5 Nov 17 12:09:38.256 INFO [stderr] | Nov 17 12:09:38.256 INFO [stderr] 12 | fn can_hold(&self, other: &Rectangle) -> bool { Nov 17 12:09:38.256 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 17 12:09:38.256 INFO [stderr] Nov 17 12:09:38.256 INFO [stderr] warning: method is never used: `square` Nov 17 12:09:38.256 INFO [stderr] --> src/ch5_rectangle.rs:17:5 Nov 17 12:09:38.256 INFO [stderr] | Nov 17 12:09:38.256 INFO [stderr] 17 | fn square(size: u32) -> Rectangle { Nov 17 12:09:38.256 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 17 12:09:38.256 INFO [stderr] Nov 17 12:09:38.256 INFO [stderr] warning: function is never used: `area_rec` Nov 17 12:09:38.256 INFO [stderr] --> src/ch5_rectangle.rs:42:1 Nov 17 12:09:38.256 INFO [stderr] | Nov 17 12:09:38.256 INFO [stderr] 42 | fn area_rec(rec: &Rectangle) -> u32 { Nov 17 12:09:38.256 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 17 12:09:38.256 INFO [stderr] Nov 17 12:09:38.256 INFO [stderr] warning: struct is never constructed: `User` Nov 17 12:09:38.256 INFO [stderr] --> src/ch5_structs.rs:1:1 Nov 17 12:09:38.256 INFO [stderr] | Nov 17 12:09:38.256 INFO [stderr] 1 | struct User { Nov 17 12:09:38.256 INFO [stderr] | ^^^^^^^^^^^ Nov 17 12:09:38.256 INFO [stderr] Nov 17 12:09:38.256 INFO [stderr] warning: struct is never constructed: `Color` Nov 17 12:09:38.256 INFO [stderr] --> src/ch5_structs.rs:9:1 Nov 17 12:09:38.256 INFO [stderr] | Nov 17 12:09:38.256 INFO [stderr] 9 | struct Color(i32, i32, i32); Nov 17 12:09:38.256 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 17 12:09:38.256 INFO [stderr] Nov 17 12:09:38.256 INFO [stderr] warning: struct is never constructed: `Point` Nov 17 12:09:38.256 INFO [stderr] --> src/ch5_structs.rs:11:1 Nov 17 12:09:38.256 INFO [stderr] | Nov 17 12:09:38.256 INFO [stderr] 11 | struct Point(i32, i32, i32); Nov 17 12:09:38.256 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 17 12:09:38.256 INFO [stderr] Nov 17 12:09:38.256 INFO [stderr] warning: function is never used: `build_user` Nov 17 12:09:38.256 INFO [stderr] --> src/ch5_structs.rs:34:1 Nov 17 12:09:38.256 INFO [stderr] | Nov 17 12:09:38.256 INFO [stderr] 34 | fn build_user(email: String, username: String) -> User { Nov 17 12:09:38.256 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 17 12:09:38.256 INFO [stderr] Nov 17 12:09:38.256 INFO [stderr] warning: enum is never used: `IpAddrKind` Nov 17 12:09:38.256 INFO [stderr] --> src/ch6_enums.rs:1:1 Nov 17 12:09:38.256 INFO [stderr] | Nov 17 12:09:38.256 INFO [stderr] 1 | enum IpAddrKind { Nov 17 12:09:38.257 INFO [stderr] | ^^^^^^^^^^^^^^^ Nov 17 12:09:38.257 INFO [stderr] Nov 17 12:09:38.257 INFO [stderr] warning: enum is never used: `UsState` Nov 17 12:09:38.257 INFO [stderr] --> src/ch6_enums.rs:7:1 Nov 17 12:09:38.257 INFO [stderr] | Nov 17 12:09:38.257 INFO [stderr] 7 | enum UsState { Nov 17 12:09:38.257 INFO [stderr] | ^^^^^^^^^^^^ Nov 17 12:09:38.257 INFO [stderr] Nov 17 12:09:38.257 INFO [stderr] warning: enum is never used: `Coin` Nov 17 12:09:38.257 INFO [stderr] --> src/ch6_enums.rs:13:1 Nov 17 12:09:38.257 INFO [stderr] | Nov 17 12:09:38.257 INFO [stderr] 13 | enum Coin { Nov 17 12:09:38.257 INFO [stderr] | ^^^^^^^^^ Nov 17 12:09:38.257 INFO [stderr] Nov 17 12:09:38.257 INFO [stderr] warning: function is never used: `value_in_cents` Nov 17 12:09:38.257 INFO [stderr] --> src/ch6_enums.rs:20:1 Nov 17 12:09:38.257 INFO [stderr] | Nov 17 12:09:38.257 INFO [stderr] 20 | fn value_in_cents(coin: Coin) -> u32 { Nov 17 12:09:38.257 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 17 12:09:38.257 INFO [stderr] Nov 17 12:09:38.257 INFO [stderr] warning: function is never used: `route` Nov 17 12:09:38.257 INFO [stderr] --> src/ch6_enums.rs:53:1 Nov 17 12:09:38.257 INFO [stderr] | Nov 17 12:09:38.257 INFO [stderr] 53 | fn route(ip_type: IpAddrKind) {} Nov 17 12:09:38.257 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 17 12:09:38.257 INFO [stderr] Nov 17 12:09:38.257 INFO [stderr] warning: function is never used: `nested_modules` Nov 17 12:09:38.257 INFO [stderr] --> src/ch7_modules.rs:21:13 Nov 17 12:09:38.257 INFO [stderr] | Nov 17 12:09:38.257 INFO [stderr] 21 | pub fn nested_modules() {} Nov 17 12:09:38.257 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^ Nov 17 12:09:38.257 INFO [stderr] Nov 17 12:09:38.257 INFO [stderr] warning: function is never used: `read_username_from_file` Nov 17 12:09:38.257 INFO [stderr] --> src/ch9_error.rs:44:1 Nov 17 12:09:38.257 INFO [stderr] | Nov 17 12:09:38.257 INFO [stderr] 44 | fn read_username_from_file() -> Result { Nov 17 12:09:38.257 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 17 12:09:38.257 INFO [stderr] Nov 17 12:09:38.257 INFO [stderr] warning: function is never used: `read_username_from_file2` Nov 17 12:09:38.257 INFO [stderr] --> src/ch9_error.rs:60:1 Nov 17 12:09:38.257 INFO [stderr] | Nov 17 12:09:38.257 INFO [stderr] 60 | fn read_username_from_file2() -> Result { Nov 17 12:09:38.257 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 17 12:09:38.257 INFO [stderr] Nov 17 12:09:38.257 INFO [stderr] warning: function is never used: `read_username_from_file3` Nov 17 12:09:38.257 INFO [stderr] --> src/ch9_error.rs:67:1 Nov 17 12:09:38.257 INFO [stderr] | Nov 17 12:09:38.257 INFO [stderr] 67 | fn read_username_from_file3() -> Result { Nov 17 12:09:38.257 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 17 12:09:38.257 INFO [stderr] Nov 17 12:09:38.257 INFO [stderr] warning: function is never used: `longest` Nov 17 12:09:38.257 INFO [stderr] --> src/ch10_generic_trait_lifetime.rs:75:1 Nov 17 12:09:38.257 INFO [stderr] | Nov 17 12:09:38.257 INFO [stderr] 75 | fn longest<'a>(x: &'a str, y: &'a str) -> &'a str { Nov 17 12:09:38.257 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 17 12:09:38.257 INFO [stderr] Nov 17 12:09:38.257 INFO [stderr] warning: function is never used: `longest_with_an_announcement` Nov 17 12:09:38.257 INFO [stderr] --> src/ch10_generic_trait_lifetime.rs:83:1 Nov 17 12:09:38.257 INFO [stderr] | Nov 17 12:09:38.257 INFO [stderr] 83 | / fn longest_with_an_announcement<'a, T>(x: &'a str, y: &'a str, ann: T) -> &'a str Nov 17 12:09:38.257 INFO [stderr] 84 | | where T: Display Nov 17 12:09:38.257 INFO [stderr] 85 | | { Nov 17 12:09:38.257 INFO [stderr] 86 | | println!("Announcement! {}", ann); Nov 17 12:09:38.257 INFO [stderr] ... | Nov 17 12:09:38.257 INFO [stderr] 91 | | } Nov 17 12:09:38.257 INFO [stderr] 92 | | } Nov 17 12:09:38.257 INFO [stderr] | |_^ Nov 17 12:09:38.257 INFO [stderr] Nov 17 12:09:38.257 INFO [stderr] warning: struct is never constructed: `ImportantExcerpt` Nov 17 12:09:38.257 INFO [stderr] --> src/ch10_generic_trait_lifetime.rs:94:1 Nov 17 12:09:38.257 INFO [stderr] | Nov 17 12:09:38.257 INFO [stderr] 94 | struct ImportantExcerpt<'a> { Nov 17 12:09:38.257 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 17 12:09:38.257 INFO [stderr] Nov 17 12:09:38.257 INFO [stderr] warning: method is never used: `level` Nov 17 12:09:38.257 INFO [stderr] --> src/ch10_generic_trait_lifetime.rs:99:5 Nov 17 12:09:38.257 INFO [stderr] | Nov 17 12:09:38.257 INFO [stderr] 99 | fn level(&self) -> i32 { Nov 17 12:09:38.257 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^ Nov 17 12:09:38.257 INFO [stderr] Nov 17 12:09:38.257 INFO [stderr] warning: method is never used: `announce_and_return_part` Nov 17 12:09:38.257 INFO [stderr] --> src/ch10_generic_trait_lifetime.rs:103:5 Nov 17 12:09:38.258 INFO [stderr] | Nov 17 12:09:38.258 INFO [stderr] 103 | fn announce_and_return_part(&self, announcement: &str) -> &str { Nov 17 12:09:38.258 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 17 12:09:38.258 INFO [stderr] Nov 17 12:09:38.258 INFO [stderr] warning: function is never used: `notify` Nov 17 12:09:38.258 INFO [stderr] --> src/ch10_generic_trait_lifetime.rs:109:1 Nov 17 12:09:38.258 INFO [stderr] | Nov 17 12:09:38.258 INFO [stderr] 109 | fn notify(item: T) { Nov 17 12:09:38.258 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 17 12:09:38.258 INFO [stderr] Nov 17 12:09:38.258 INFO [stderr] warning: function is never used: `some_function` Nov 17 12:09:38.258 INFO [stderr] --> src/ch10_generic_trait_lifetime.rs:113:1 Nov 17 12:09:38.258 INFO [stderr] | Nov 17 12:09:38.258 INFO [stderr] 113 | fn some_function(t: T, u: U) -> i32 { Nov 17 12:09:38.258 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 17 12:09:38.258 INFO [stderr] Nov 17 12:09:38.258 INFO [stderr] warning: function is never used: `some_function2` Nov 17 12:09:38.258 INFO [stderr] --> src/ch10_generic_trait_lifetime.rs:117:1 Nov 17 12:09:38.258 INFO [stderr] | Nov 17 12:09:38.258 INFO [stderr] 117 | / fn some_function2(t: T, u: U) -> i32 Nov 17 12:09:38.258 INFO [stderr] 118 | | where T: Display + Clone, Nov 17 12:09:38.258 INFO [stderr] 119 | | U: Clone + Display { Nov 17 12:09:38.258 INFO [stderr] 120 | | 1 Nov 17 12:09:38.258 INFO [stderr] 121 | | } Nov 17 12:09:38.258 INFO [stderr] | |_^ Nov 17 12:09:38.258 INFO [stderr] Nov 17 12:09:38.258 INFO [stderr] warning: function is never used: `largest` Nov 17 12:09:38.258 INFO [stderr] --> src/ch10_generic_trait_lifetime.rs:123:1 Nov 17 12:09:38.258 INFO [stderr] | Nov 17 12:09:38.258 INFO [stderr] 123 | fn largest(list: &[i32]) -> i32 { Nov 17 12:09:38.258 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 17 12:09:38.258 INFO [stderr] Nov 17 12:09:38.258 INFO [stderr] warning: function is never used: `largest2` Nov 17 12:09:38.258 INFO [stderr] --> src/ch10_generic_trait_lifetime.rs:135:1 Nov 17 12:09:38.258 INFO [stderr] | Nov 17 12:09:38.258 INFO [stderr] 135 | fn largest2(list: &[T]) -> &T { Nov 17 12:09:38.258 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 17 12:09:38.258 INFO [stderr] Nov 17 12:09:38.258 INFO [stderr] warning: struct is never constructed: `Point` Nov 17 12:09:38.258 INFO [stderr] --> src/ch10_generic_trait_lifetime.rs:147:1 Nov 17 12:09:38.258 INFO [stderr] | Nov 17 12:09:38.258 INFO [stderr] 147 | struct Point { Nov 17 12:09:38.258 INFO [stderr] | ^^^^^^^^^^^^^^^ Nov 17 12:09:38.258 INFO [stderr] Nov 17 12:09:38.258 INFO [stderr] warning: method is never used: `x` Nov 17 12:09:38.258 INFO [stderr] --> src/ch10_generic_trait_lifetime.rs:153:5 Nov 17 12:09:38.258 INFO [stderr] | Nov 17 12:09:38.258 INFO [stderr] 153 | fn x(&self) -> &T { Nov 17 12:09:38.258 INFO [stderr] | ^^^^^^^^^^^^^^^^^ Nov 17 12:09:38.258 INFO [stderr] Nov 17 12:09:38.258 INFO [stderr] warning: struct is never constructed: `Point2` Nov 17 12:09:38.258 INFO [stderr] --> src/ch10_generic_trait_lifetime.rs:158:1 Nov 17 12:09:38.258 INFO [stderr] | Nov 17 12:09:38.258 INFO [stderr] 158 | struct Point2 { Nov 17 12:09:38.258 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^ Nov 17 12:09:38.258 INFO [stderr] Nov 17 12:09:38.258 INFO [stderr] warning: method is never used: `mixup` Nov 17 12:09:38.258 INFO [stderr] --> src/ch10_generic_trait_lifetime.rs:164:5 Nov 17 12:09:38.258 INFO [stderr] | Nov 17 12:09:38.258 INFO [stderr] 164 | fn mixup(self, other: Point2) -> Point2 { Nov 17 12:09:38.258 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 17 12:09:38.258 INFO [stderr] Nov 17 12:09:38.258 INFO [stderr] warning: enum is never used: `Option` Nov 17 12:09:38.258 INFO [stderr] --> src/ch10_generic_trait_lifetime.rs:172:1 Nov 17 12:09:38.258 INFO [stderr] | Nov 17 12:09:38.258 INFO [stderr] 172 | enum Option { Nov 17 12:09:38.258 INFO [stderr] | ^^^^^^^^^^^^^^ Nov 17 12:09:38.258 INFO [stderr] Nov 17 12:09:38.258 INFO [stderr] warning: struct is never constructed: `NewsArticle` Nov 17 12:09:38.258 INFO [stderr] --> src/ch10_generic_trait_lifetime.rs:185:1 Nov 17 12:09:38.258 INFO [stderr] | Nov 17 12:09:38.258 INFO [stderr] 185 | struct NewsArticle { Nov 17 12:09:38.258 INFO [stderr] | ^^^^^^^^^^^^^^^^^^ Nov 17 12:09:38.258 INFO [stderr] Nov 17 12:09:38.258 INFO [stderr] warning: struct is never constructed: `Tweet` Nov 17 12:09:38.258 INFO [stderr] --> src/ch10_generic_trait_lifetime.rs:198:1 Nov 17 12:09:38.258 INFO [stderr] | Nov 17 12:09:38.258 INFO [stderr] 198 | struct Tweet { Nov 17 12:09:38.258 INFO [stderr] | ^^^^^^^^^^^^ Nov 17 12:09:38.259 INFO [stderr] Nov 17 12:09:38.259 INFO [stderr] warning: function is never used: `add_two` Nov 17 12:09:38.259 INFO [stderr] --> src/ch11_test.rs:20:1 Nov 17 12:09:38.259 INFO [stderr] | Nov 17 12:09:38.259 INFO [stderr] 20 | fn add_two(a: i32) -> i32 { Nov 17 12:09:38.259 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 17 12:09:38.259 INFO [stderr] Nov 17 12:09:38.259 INFO [stderr] warning: struct is never constructed: `Guess` Nov 17 12:09:38.259 INFO [stderr] --> src/ch11_test.rs:24:1 Nov 17 12:09:38.259 INFO [stderr] | Nov 17 12:09:38.259 INFO [stderr] 24 | struct Guess { Nov 17 12:09:38.259 INFO [stderr] | ^^^^^^^^^^^^ Nov 17 12:09:38.259 INFO [stderr] Nov 17 12:09:38.259 INFO [stderr] warning: method is never used: `new` Nov 17 12:09:38.259 INFO [stderr] --> src/ch11_test.rs:29:5 Nov 17 12:09:38.259 INFO [stderr] | Nov 17 12:09:38.259 INFO [stderr] 29 | pub fn new(value: u32) -> Guess { Nov 17 12:09:38.259 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 17 12:09:38.259 INFO [stderr] Nov 17 12:09:38.259 INFO [stderr] warning: struct is never constructed: `Rectangle` Nov 17 12:09:38.259 INFO [stderr] --> src/ch11_test.rs:41:1 Nov 17 12:09:38.259 INFO [stderr] | Nov 17 12:09:38.259 INFO [stderr] 41 | pub struct Rectangle { Nov 17 12:09:38.259 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^ Nov 17 12:09:38.259 INFO [stderr] Nov 17 12:09:38.259 INFO [stderr] warning: method is never used: `can_hold` Nov 17 12:09:38.259 INFO [stderr] --> src/ch11_test.rs:47:5 Nov 17 12:09:38.259 INFO [stderr] | Nov 17 12:09:38.259 INFO [stderr] 47 | pub fn can_hold(&self, other: &Rectangle) -> bool { Nov 17 12:09:38.259 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 17 12:09:38.259 INFO [stderr] Nov 17 12:09:38.259 INFO [stderr] warning: struct is never constructed: `Counter` Nov 17 12:09:38.259 INFO [stderr] --> src/ch13_fp.rs:127:1 Nov 17 12:09:38.259 INFO [stderr] | Nov 17 12:09:38.259 INFO [stderr] 127 | struct Counter { Nov 17 12:09:38.259 INFO [stderr] | ^^^^^^^^^^^^^^ Nov 17 12:09:38.259 INFO [stderr] Nov 17 12:09:38.259 INFO [stderr] warning: method is never used: `new` Nov 17 12:09:38.259 INFO [stderr] --> src/ch13_fp.rs:132:5 Nov 17 12:09:38.259 INFO [stderr] | Nov 17 12:09:38.259 INFO [stderr] 132 | fn new() -> Counter { Nov 17 12:09:38.259 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^ Nov 17 12:09:38.259 INFO [stderr] Nov 17 12:09:38.259 INFO [stderr] warning: function is never used: `shoes_in_my_size` Nov 17 12:09:38.259 INFO [stderr] --> src/ch13_fp.rs:157:1 Nov 17 12:09:38.259 INFO [stderr] | Nov 17 12:09:38.259 INFO [stderr] 157 | fn shoes_in_my_size(shoes: Vec, shoe_size: i32) -> Vec { Nov 17 12:09:38.259 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 17 12:09:38.259 INFO [stderr] Nov 17 12:09:38.259 INFO [stderr] warning: struct is never constructed: `Cacher` Nov 17 12:09:38.259 INFO [stderr] --> src/ch13_fp.rs:177:1 Nov 17 12:09:38.259 INFO [stderr] | Nov 17 12:09:38.259 INFO [stderr] 177 | / struct Cacher Nov 17 12:09:38.259 INFO [stderr] 178 | | where Nov 17 12:09:38.259 INFO [stderr] 179 | | T: Fn(P) -> R, Nov 17 12:09:38.259 INFO [stderr] 180 | | P: std::hash::Hash + Eq + Copy, Nov 17 12:09:38.259 INFO [stderr] ... | Nov 17 12:09:38.259 INFO [stderr] 184 | | result: HashMap, Nov 17 12:09:38.259 INFO [stderr] 185 | | } Nov 17 12:09:38.259 INFO [stderr] | |_^ Nov 17 12:09:38.259 INFO [stderr] Nov 17 12:09:38.259 INFO [stderr] warning: method is never used: `new` Nov 17 12:09:38.259 INFO [stderr] --> src/ch13_fp.rs:193:5 Nov 17 12:09:38.259 INFO [stderr] | Nov 17 12:09:38.259 INFO [stderr] 193 | fn new(calculation: T) -> Cacher { Nov 17 12:09:38.259 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 17 12:09:38.259 INFO [stderr] Nov 17 12:09:38.259 INFO [stderr] warning: method is never used: `value` Nov 17 12:09:38.259 INFO [stderr] --> src/ch13_fp.rs:200:5 Nov 17 12:09:38.259 INFO [stderr] | Nov 17 12:09:38.259 INFO [stderr] 200 | fn value(&mut self, arg: P) -> R { Nov 17 12:09:38.259 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 17 12:09:38.259 INFO [stderr] Nov 17 12:09:38.259 INFO [stderr] warning: enum is never used: `List` Nov 17 12:09:38.259 INFO [stderr] --> src/ch15_smart_pointers/ch15_1_box.rs:8:1 Nov 17 12:09:38.259 INFO [stderr] | Nov 17 12:09:38.259 INFO [stderr] 8 | enum List { Nov 17 12:09:38.259 INFO [stderr] | ^^^^^^^^^^^^ Nov 17 12:09:38.259 INFO [stderr] Nov 17 12:09:38.259 INFO [stderr] warning: struct is never constructed: `Mp3` Nov 17 12:09:38.259 INFO [stderr] --> src/ch15_smart_pointers/ch15_1_box.rs:24:1 Nov 17 12:09:38.259 INFO [stderr] | Nov 17 12:09:38.259 INFO [stderr] 24 | struct Mp3 { Nov 17 12:09:38.259 INFO [stderr] | ^^^^^^^^^^ Nov 17 12:09:38.259 INFO [stderr] Nov 17 12:09:38.259 INFO [stderr] warning: struct is never constructed: `CustomSmartPointer` Nov 17 12:09:38.259 INFO [stderr] --> src/ch15_smart_pointers/ch15_1_box.rs:72:1 Nov 17 12:09:38.260 INFO [stderr] | Nov 17 12:09:38.260 INFO [stderr] 72 | struct CustomSmartPointer { Nov 17 12:09:38.260 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 17 12:09:38.260 INFO [stderr] Nov 17 12:09:38.260 INFO [stderr] warning: enum is never used: `List` Nov 17 12:09:38.260 INFO [stderr] --> src/ch15_smart_pointers/ch15_4_rc.rs:6:1 Nov 17 12:09:38.260 INFO [stderr] | Nov 17 12:09:38.260 INFO [stderr] 6 | enum List { Nov 17 12:09:38.260 INFO [stderr] | ^^^^^^^^^^^^ Nov 17 12:09:38.260 INFO [stderr] Nov 17 12:09:38.260 INFO [stderr] warning: function is never used: `a_fn_that_immutably_borrows` Nov 17 12:09:38.260 INFO [stderr] --> src/ch15_smart_pointers/ch15_5_ref_cell.rs:6:1 Nov 17 12:09:38.260 INFO [stderr] | Nov 17 12:09:38.260 INFO [stderr] 6 | fn a_fn_that_immutably_borrows(a: &i32){ Nov 17 12:09:38.260 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 17 12:09:38.260 INFO [stderr] Nov 17 12:09:38.260 INFO [stderr] warning: function is never used: `a_fn_that_mutably_borrows` Nov 17 12:09:38.260 INFO [stderr] --> src/ch15_smart_pointers/ch15_5_ref_cell.rs:10:1 Nov 17 12:09:38.260 INFO [stderr] | Nov 17 12:09:38.260 INFO [stderr] 10 | fn a_fn_that_mutably_borrows(b: &mut i32){ Nov 17 12:09:38.260 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 17 12:09:38.260 INFO [stderr] Nov 17 12:09:38.260 INFO [stderr] warning: function is never used: `demo` Nov 17 12:09:38.260 INFO [stderr] --> src/ch15_smart_pointers/ch15_5_ref_cell.rs:14:1 Nov 17 12:09:38.260 INFO [stderr] | Nov 17 12:09:38.260 INFO [stderr] 14 | fn demo(r: &RefCell){ Nov 17 12:09:38.260 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 17 12:09:38.260 INFO [stderr] Nov 17 12:09:38.260 INFO [stderr] warning: enum is never used: `List` Nov 17 12:09:38.260 INFO [stderr] --> src/ch15_smart_pointers/ch15_5_ref_cell.rs:36:1 Nov 17 12:09:38.260 INFO [stderr] | Nov 17 12:09:38.260 INFO [stderr] 36 | enum List { Nov 17 12:09:38.260 INFO [stderr] | ^^^^^^^^^ Nov 17 12:09:38.260 INFO [stderr] Nov 17 12:09:38.260 INFO [stderr] warning: enum is never used: `List` Nov 17 12:09:38.260 INFO [stderr] --> src/ch15_smart_pointers/ch15_6_ref_cycle.rs:2:1 Nov 17 12:09:38.260 INFO [stderr] | Nov 17 12:09:38.260 INFO [stderr] 2 | enum List { Nov 17 12:09:38.260 INFO [stderr] | ^^^^^^^^^ Nov 17 12:09:38.260 INFO [stderr] Nov 17 12:09:38.260 INFO [stderr] warning: method is never used: `tail` Nov 17 12:09:38.260 INFO [stderr] --> src/ch15_smart_pointers/ch15_6_ref_cycle.rs:8:5 Nov 17 12:09:38.260 INFO [stderr] | Nov 17 12:09:38.260 INFO [stderr] 8 | fn tail(&self) -> Option<&RefCell>> { Nov 17 12:09:38.260 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 17 12:09:38.260 INFO [stderr] Nov 17 12:09:38.260 INFO [stderr] warning: struct is never constructed: `Node` Nov 17 12:09:38.260 INFO [stderr] --> src/ch15_smart_pointers/ch15_6_ref_cycle.rs:47:1 Nov 17 12:09:38.260 INFO [stderr] | Nov 17 12:09:38.260 INFO [stderr] 47 | struct Node { Nov 17 12:09:38.260 INFO [stderr] | ^^^^^^^^^^^ Nov 17 12:09:38.260 INFO [stderr] Nov 17 12:09:38.260 INFO [stderr] warning: struct is never constructed: `AveragedCollection` Nov 17 12:09:38.260 INFO [stderr] --> src/ch17_oop/mod.rs:2:1 Nov 17 12:09:38.260 INFO [stderr] | Nov 17 12:09:38.260 INFO [stderr] 2 | pub struct AveragedCollection { Nov 17 12:09:38.260 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 17 12:09:38.260 INFO [stderr] Nov 17 12:09:38.260 INFO [stderr] warning: method is never used: `add` Nov 17 12:09:38.260 INFO [stderr] --> src/ch17_oop/mod.rs:8:5 Nov 17 12:09:38.260 INFO [stderr] | Nov 17 12:09:38.260 INFO [stderr] 8 | pub fn add(&mut self, value: i32) { Nov 17 12:09:38.260 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 17 12:09:38.260 INFO [stderr] Nov 17 12:09:38.260 INFO [stderr] warning: method is never used: `remove` Nov 17 12:09:38.260 INFO [stderr] --> src/ch17_oop/mod.rs:13:5 Nov 17 12:09:38.260 INFO [stderr] | Nov 17 12:09:38.260 INFO [stderr] 13 | pub fn remove(&mut self) -> Option { Nov 17 12:09:38.260 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 17 12:09:38.260 INFO [stderr] Nov 17 12:09:38.260 INFO [stderr] warning: method is never used: `average` Nov 17 12:09:38.260 INFO [stderr] --> src/ch17_oop/mod.rs:24:5 Nov 17 12:09:38.260 INFO [stderr] | Nov 17 12:09:38.260 INFO [stderr] 24 | pub fn average(&self) -> f64 { Nov 17 12:09:38.260 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 17 12:09:38.260 INFO [stderr] Nov 17 12:09:38.260 INFO [stderr] warning: method is never used: `update_average` Nov 17 12:09:38.260 INFO [stderr] --> src/ch17_oop/mod.rs:28:5 Nov 17 12:09:38.260 INFO [stderr] | Nov 17 12:09:38.260 INFO [stderr] 28 | fn update_average(&mut self) { Nov 17 12:09:38.260 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 17 12:09:38.260 INFO [stderr] Nov 17 12:09:38.260 INFO [stderr] warning: struct is never constructed: `Screen` Nov 17 12:09:38.260 INFO [stderr] --> src/ch17_oop/mod.rs:39:1 Nov 17 12:09:38.260 INFO [stderr] | Nov 17 12:09:38.260 INFO [stderr] 39 | pub struct Screen { Nov 17 12:09:38.261 INFO [stderr] | ^^^^^^^^^^^^^^^^^ Nov 17 12:09:38.261 INFO [stderr] Nov 17 12:09:38.261 INFO [stderr] warning: method is never used: `run` Nov 17 12:09:38.261 INFO [stderr] --> src/ch17_oop/mod.rs:44:5 Nov 17 12:09:38.261 INFO [stderr] | Nov 17 12:09:38.261 INFO [stderr] 44 | pub fn run(&self) { Nov 17 12:09:38.261 INFO [stderr] | ^^^^^^^^^^^^^^^^^ Nov 17 12:09:38.261 INFO [stderr] Nov 17 12:09:38.261 INFO [stderr] warning: struct is never constructed: `Button` Nov 17 12:09:38.261 INFO [stderr] --> src/ch17_oop/mod.rs:52:1 Nov 17 12:09:38.261 INFO [stderr] | Nov 17 12:09:38.261 INFO [stderr] 52 | pub struct Button { Nov 17 12:09:38.261 INFO [stderr] | ^^^^^^^^^^^^^^^^^ Nov 17 12:09:38.261 INFO [stderr] Nov 17 12:09:38.261 INFO [stderr] warning: struct is never constructed: `SelectBox` Nov 17 12:09:38.261 INFO [stderr] --> src/ch17_oop/mod.rs:65:1 Nov 17 12:09:38.261 INFO [stderr] | Nov 17 12:09:38.261 INFO [stderr] 65 | struct SelectBox { Nov 17 12:09:38.261 INFO [stderr] | ^^^^^^^^^^^^^^^^ Nov 17 12:09:38.261 INFO [stderr] Nov 17 12:09:38.261 INFO [stderr] warning: field is never used: `state` Nov 17 12:09:38.261 INFO [stderr] --> src/ch17_oop/mod.rs:140:5 Nov 17 12:09:38.261 INFO [stderr] | Nov 17 12:09:38.261 INFO [stderr] 140 | state: Option>, Nov 17 12:09:38.261 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 17 12:09:38.261 INFO [stderr] Nov 17 12:09:38.261 INFO [stderr] warning: method is never used: `new` Nov 17 12:09:38.261 INFO [stderr] --> src/ch17_oop/mod.rs:145:5 Nov 17 12:09:38.261 INFO [stderr] | Nov 17 12:09:38.261 INFO [stderr] 145 | pub fn new() -> Post { Nov 17 12:09:38.261 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^ Nov 17 12:09:38.261 INFO [stderr] Nov 17 12:09:38.261 INFO [stderr] warning: method is never used: `add_text` Nov 17 12:09:38.261 INFO [stderr] --> src/ch17_oop/mod.rs:152:5 Nov 17 12:09:38.261 INFO [stderr] | Nov 17 12:09:38.261 INFO [stderr] 152 | pub fn add_text(&mut self, text: &str) { Nov 17 12:09:38.261 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 17 12:09:38.261 INFO [stderr] Nov 17 12:09:38.261 INFO [stderr] warning: method is never used: `content` Nov 17 12:09:38.261 INFO [stderr] --> src/ch17_oop/mod.rs:156:5 Nov 17 12:09:38.261 INFO [stderr] | Nov 17 12:09:38.261 INFO [stderr] 156 | pub fn content(&self) -> &str { Nov 17 12:09:38.261 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 17 12:09:38.261 INFO [stderr] Nov 17 12:09:38.261 INFO [stderr] warning: method is never used: `request_review` Nov 17 12:09:38.261 INFO [stderr] --> src/ch17_oop/mod.rs:160:5 Nov 17 12:09:38.261 INFO [stderr] | Nov 17 12:09:38.261 INFO [stderr] 160 | pub fn request_review(&mut self) { Nov 17 12:09:38.261 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 17 12:09:38.261 INFO [stderr] Nov 17 12:09:38.263 INFO [stderr] warning: method is never used: `approve` Nov 17 12:09:38.264 INFO [stderr] --> src/ch17_oop/mod.rs:166:5 Nov 17 12:09:38.264 INFO [stderr] | Nov 17 12:09:38.264 INFO [stderr] 166 | pub fn approve(&mut self) { Nov 17 12:09:38.264 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 17 12:09:38.264 INFO [stderr] Nov 17 12:09:38.264 INFO [stderr] warning: method is never used: `reject` Nov 17 12:09:38.264 INFO [stderr] --> src/ch17_oop/mod.rs:172:5 Nov 17 12:09:38.264 INFO [stderr] | Nov 17 12:09:38.264 INFO [stderr] 172 | pub fn reject(&mut self) { Nov 17 12:09:38.264 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^ Nov 17 12:09:38.264 INFO [stderr] Nov 17 12:09:38.264 INFO [stderr] warning: enum is never used: `Either` Nov 17 12:09:38.264 INFO [stderr] --> src/ch17_oop/encoding_states_as_type.rs:22:1 Nov 17 12:09:38.264 INFO [stderr] | Nov 17 12:09:38.264 INFO [stderr] 22 | enum Either { Nov 17 12:09:38.264 INFO [stderr] | ^^^^^^^^^^^^^^^^^ Nov 17 12:09:38.264 INFO [stderr] Nov 17 12:09:38.264 INFO [stderr] warning: struct is never constructed: `Post` Nov 17 12:09:38.264 INFO [stderr] --> src/ch17_oop/encoding_states_as_type.rs:27:1 Nov 17 12:09:38.264 INFO [stderr] | Nov 17 12:09:38.264 INFO [stderr] 27 | struct Post { Nov 17 12:09:38.264 INFO [stderr] | ^^^^^^^^^^^ Nov 17 12:09:38.264 INFO [stderr] Nov 17 12:09:38.264 INFO [stderr] warning: struct is never constructed: `DraftPost` Nov 17 12:09:38.264 INFO [stderr] --> src/ch17_oop/encoding_states_as_type.rs:31:1 Nov 17 12:09:38.264 INFO [stderr] | Nov 17 12:09:38.264 INFO [stderr] 31 | struct DraftPost { Nov 17 12:09:38.264 INFO [stderr] | ^^^^^^^^^^^^^^^^ Nov 17 12:09:38.264 INFO [stderr] Nov 17 12:09:38.264 INFO [stderr] warning: method is never used: `new` Nov 17 12:09:38.264 INFO [stderr] --> src/ch17_oop/encoding_states_as_type.rs:36:5 Nov 17 12:09:38.264 INFO [stderr] | Nov 17 12:09:38.264 INFO [stderr] 36 | fn new() -> DraftPost { Nov 17 12:09:38.264 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^ Nov 17 12:09:38.264 INFO [stderr] Nov 17 12:09:38.264 INFO [stderr] warning: method is never used: `content` Nov 17 12:09:38.264 INFO [stderr] --> src/ch17_oop/encoding_states_as_type.rs:42:5 Nov 17 12:09:38.264 INFO [stderr] | Nov 17 12:09:38.264 INFO [stderr] 42 | fn content(&self) -> &str { Nov 17 12:09:38.264 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 17 12:09:38.264 INFO [stderr] Nov 17 12:09:38.264 INFO [stderr] warning: method is never used: `add_text` Nov 17 12:09:38.264 INFO [stderr] --> src/ch17_oop/encoding_states_as_type.rs:48:5 Nov 17 12:09:38.264 INFO [stderr] | Nov 17 12:09:38.264 INFO [stderr] 48 | fn add_text(&mut self, text: &str) { Nov 17 12:09:38.264 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 17 12:09:38.264 INFO [stderr] Nov 17 12:09:38.264 INFO [stderr] warning: method is never used: `request_review` Nov 17 12:09:38.264 INFO [stderr] --> src/ch17_oop/encoding_states_as_type.rs:52:5 Nov 17 12:09:38.264 INFO [stderr] | Nov 17 12:09:38.264 INFO [stderr] 52 | fn request_review(self) -> PendingReviewPost { Nov 17 12:09:38.264 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 17 12:09:38.264 INFO [stderr] Nov 17 12:09:38.264 INFO [stderr] warning: struct is never constructed: `PendingReviewPost` Nov 17 12:09:38.264 INFO [stderr] --> src/ch17_oop/encoding_states_as_type.rs:60:1 Nov 17 12:09:38.264 INFO [stderr] | Nov 17 12:09:38.264 INFO [stderr] 60 | struct PendingReviewPost { Nov 17 12:09:38.264 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^ Nov 17 12:09:38.264 INFO [stderr] Nov 17 12:09:38.264 INFO [stderr] warning: method is never used: `approve` Nov 17 12:09:38.264 INFO [stderr] --> src/ch17_oop/encoding_states_as_type.rs:66:5 Nov 17 12:09:38.264 INFO [stderr] | Nov 17 12:09:38.264 INFO [stderr] 66 | fn approve(self) -> Either { Nov 17 12:09:38.264 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 17 12:09:38.264 INFO [stderr] Nov 17 12:09:38.264 INFO [stderr] warning: method is never used: `reject` Nov 17 12:09:38.264 INFO [stderr] --> src/ch17_oop/encoding_states_as_type.rs:81:5 Nov 17 12:09:38.264 INFO [stderr] | Nov 17 12:09:38.264 INFO [stderr] 81 | fn reject(self) -> DraftPost { Nov 17 12:09:38.264 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 17 12:09:38.264 INFO [stderr] Nov 17 12:09:38.264 INFO [stderr] warning: enum is never used: `Message` Nov 17 12:09:38.264 INFO [stderr] --> src/ch18_pattern_match.rs:236:1 Nov 17 12:09:38.264 INFO [stderr] | Nov 17 12:09:38.264 INFO [stderr] 236 | enum Message { Nov 17 12:09:38.264 INFO [stderr] | ^^^^^^^^^^^^ Nov 17 12:09:38.264 INFO [stderr] Nov 17 12:09:38.264 INFO [stderr] warning: struct is never constructed: `Point` Nov 17 12:09:38.264 INFO [stderr] --> src/ch18_pattern_match.rs:240:1 Nov 17 12:09:38.264 INFO [stderr] | Nov 17 12:09:38.264 INFO [stderr] 240 | struct Point { Nov 17 12:09:38.264 INFO [stderr] | ^^^^^^^^^^^^ Nov 17 12:09:38.264 INFO [stderr] Nov 17 12:09:38.264 INFO [stderr] warning: function is never used: `foo` Nov 17 12:09:38.264 INFO [stderr] --> src/ch18_pattern_match.rs:245:1 Nov 17 12:09:38.264 INFO [stderr] | Nov 17 12:09:38.264 INFO [stderr] 245 | fn foo(x: i32) { Nov 17 12:09:38.265 INFO [stderr] | ^^^^^^^^^^^^^^ Nov 17 12:09:38.265 INFO [stderr] Nov 17 12:09:38.265 INFO [stderr] warning: function is never used: `print_coordinates` Nov 17 12:09:38.265 INFO [stderr] --> src/ch18_pattern_match.rs:250:1 Nov 17 12:09:38.265 INFO [stderr] | Nov 17 12:09:38.265 INFO [stderr] 250 | fn print_coordinates(&(x, y): &(i32, i32)) { Nov 17 12:09:38.265 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 17 12:09:38.265 INFO [stderr] Nov 17 12:09:38.265 INFO [stderr] warning: function is never used: `dangerous` Nov 17 12:09:38.265 INFO [stderr] --> src/ch19_advanced_feature/ch19_1_unsafe.rs:28:1 Nov 17 12:09:38.265 INFO [stderr] | Nov 17 12:09:38.265 INFO [stderr] 28 | unsafe fn dangerous() {} Nov 17 12:09:38.265 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^ Nov 17 12:09:38.265 INFO [stderr] Nov 17 12:09:38.265 INFO [stderr] warning: function is never used: `split_at_mut` Nov 17 12:09:38.265 INFO [stderr] --> src/ch19_advanced_feature/ch19_1_unsafe.rs:44:1 Nov 17 12:09:38.265 INFO [stderr] | Nov 17 12:09:38.265 INFO [stderr] 44 | fn split_at_mut(slice: &mut [i32], mid: usize) -> (&mut [i32], &mut [i32]) { Nov 17 12:09:38.265 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 17 12:09:38.265 INFO [stderr] Nov 17 12:09:38.265 INFO [stderr] warning: static item is never used: `HELLO_WORLD` Nov 17 12:09:38.265 INFO [stderr] --> src/ch19_advanced_feature/ch19_1_unsafe.rs:77:1 Nov 17 12:09:38.265 INFO [stderr] | Nov 17 12:09:38.265 INFO [stderr] 77 | static HELLO_WORLD: &str = "Hello, world!"; Nov 17 12:09:38.265 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 17 12:09:38.265 INFO [stderr] Nov 17 12:09:38.265 INFO [stderr] warning: static item is never used: `COUNTER` Nov 17 12:09:38.265 INFO [stderr] --> src/ch19_advanced_feature/ch19_1_unsafe.rs:78:1 Nov 17 12:09:38.265 INFO [stderr] | Nov 17 12:09:38.265 INFO [stderr] 78 | static mut COUNTER: u32 = 0; Nov 17 12:09:38.265 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 17 12:09:38.265 INFO [stderr] Nov 17 12:09:38.265 INFO [stderr] warning: struct is never constructed: `Context` Nov 17 12:09:38.265 INFO [stderr] --> src/ch19_advanced_feature/ch19_2_advanced_lifetime.rs:2:1 Nov 17 12:09:38.265 INFO [stderr] | Nov 17 12:09:38.265 INFO [stderr] 2 | struct Context<'s>(&'s str); Nov 17 12:09:38.265 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 17 12:09:38.265 INFO [stderr] Nov 17 12:09:38.265 INFO [stderr] warning: struct is never constructed: `Parser` Nov 17 12:09:38.265 INFO [stderr] --> src/ch19_advanced_feature/ch19_2_advanced_lifetime.rs:4:1 Nov 17 12:09:38.265 INFO [stderr] | Nov 17 12:09:38.265 INFO [stderr] 4 | struct Parser<'c, 's: 'c> { Nov 17 12:09:38.265 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 17 12:09:38.265 INFO [stderr] Nov 17 12:09:38.265 INFO [stderr] warning: method is never used: `parse` Nov 17 12:09:38.265 INFO [stderr] --> src/ch19_advanced_feature/ch19_2_advanced_lifetime.rs:9:5 Nov 17 12:09:38.265 INFO [stderr] | Nov 17 12:09:38.265 INFO [stderr] 9 | fn parse(&self) -> Result<(), &'s str> { Nov 17 12:09:38.265 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 17 12:09:38.265 INFO [stderr] Nov 17 12:09:38.265 INFO [stderr] warning: function is never used: `parse_context` Nov 17 12:09:38.265 INFO [stderr] --> src/ch19_advanced_feature/ch19_2_advanced_lifetime.rs:14:1 Nov 17 12:09:38.265 INFO [stderr] | Nov 17 12:09:38.265 INFO [stderr] 14 | fn parse_context(context: Context) -> Result<(), &str> { Nov 17 12:09:38.265 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 17 12:09:38.265 INFO [stderr] Nov 17 12:09:38.265 INFO [stderr] warning: struct is never constructed: `Ref` Nov 17 12:09:38.265 INFO [stderr] --> src/ch19_advanced_feature/ch19_2_advanced_lifetime.rs:19:1 Nov 17 12:09:38.265 INFO [stderr] | Nov 17 12:09:38.265 INFO [stderr] 19 | struct Ref<'a, T: 'a>(&'a T); Nov 17 12:09:38.265 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 17 12:09:38.265 INFO [stderr] Nov 17 12:09:38.265 INFO [stderr] warning: struct is never constructed: `Bar` Nov 17 12:09:38.265 INFO [stderr] --> src/ch19_advanced_feature/ch19_2_advanced_lifetime.rs:24:1 Nov 17 12:09:38.265 INFO [stderr] | Nov 17 12:09:38.265 INFO [stderr] 24 | struct Bar<'a> { Nov 17 12:09:38.265 INFO [stderr] | ^^^^^^^^^^^^^^ Nov 17 12:09:38.265 INFO [stderr] Nov 17 12:09:38.265 INFO [stderr] warning: function is never used: `gDistance` Nov 17 12:09:38.265 INFO [stderr] --> src/ch19_advanced_feature/ch19_3_advanced_traits.rs:19:1 Nov 17 12:09:38.265 INFO [stderr] | Nov 17 12:09:38.265 INFO [stderr] 19 | fn gDistance>(graph: &G, start: &N, end: &N) -> u32 { 1 } Nov 17 12:09:38.265 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 17 12:09:38.265 INFO [stderr] Nov 17 12:09:38.265 INFO [stderr] warning: function is never used: `aDistance` Nov 17 12:09:38.265 INFO [stderr] --> src/ch19_advanced_feature/ch19_3_advanced_traits.rs:28:1 Nov 17 12:09:38.265 INFO [stderr] | Nov 17 12:09:38.265 INFO [stderr] 28 | fn aDistance(graph: &G, start: &G::Node, end: &G::Node) -> u32 { Nov 17 12:09:38.265 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 17 12:09:38.265 INFO [stderr] Nov 17 12:09:38.265 INFO [stderr] warning: function is never used: `distance` Nov 17 12:09:38.265 INFO [stderr] --> src/ch19_advanced_feature/ch19_3_advanced_traits.rs:33:1 Nov 17 12:09:38.265 INFO [stderr] | Nov 17 12:09:38.265 INFO [stderr] 33 | fn distance(graph: &GGraph, start: &N, end: &N) -> u32 { 1 } Nov 17 12:09:38.265 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 17 12:09:38.266 INFO [stderr] Nov 17 12:09:38.266 INFO [stderr] warning: function is never used: `traverse` Nov 17 12:09:38.266 INFO [stderr] --> src/ch19_advanced_feature/ch19_3_advanced_traits.rs:35:1 Nov 17 12:09:38.266 INFO [stderr] | Nov 17 12:09:38.266 INFO [stderr] 35 | fn traverse(graph: &AGraph) {} Nov 17 12:09:38.266 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 17 12:09:38.266 INFO [stderr] Nov 17 12:09:38.266 INFO [stderr] warning: struct is never constructed: `Baz` Nov 17 12:09:38.266 INFO [stderr] --> src/ch19_advanced_feature/ch19_3_advanced_traits.rs:102:1 Nov 17 12:09:38.266 INFO [stderr] | Nov 17 12:09:38.266 INFO [stderr] 102 | struct Baz; Nov 17 12:09:38.266 INFO [stderr] | ^^^^^^^^^^^ Nov 17 12:09:38.266 INFO [stderr] Nov 17 12:09:38.266 INFO [stderr] warning: method is never used: `f` Nov 17 12:09:38.266 INFO [stderr] --> src/ch19_advanced_feature/ch19_3_advanced_traits.rs:117:5 Nov 17 12:09:38.266 INFO [stderr] | Nov 17 12:09:38.266 INFO [stderr] 117 | fn f(&self) { Nov 17 12:09:38.266 INFO [stderr] | ^^^^^^^^^^^ Nov 17 12:09:38.266 INFO [stderr] Nov 17 12:09:38.266 INFO [stderr] warning: struct is never constructed: `Wrapper` Nov 17 12:09:38.266 INFO [stderr] --> src/ch19_advanced_feature/ch19_3_advanced_traits.rs:139:1 Nov 17 12:09:38.266 INFO [stderr] | Nov 17 12:09:38.266 INFO [stderr] 139 | struct Wrapper(Vec); Nov 17 12:09:38.266 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 17 12:09:38.266 INFO [stderr] Nov 17 12:09:38.266 INFO [stderr] warning: type alias is never used: `Kilometers` Nov 17 12:09:38.266 INFO [stderr] --> src/ch19_advanced_feature/ch19_4_advanced_types.rs:1:1 Nov 17 12:09:38.266 INFO [stderr] | Nov 17 12:09:38.266 INFO [stderr] 1 | type Kilometers = i32; Nov 17 12:09:38.266 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^ Nov 17 12:09:38.266 INFO [stderr] Nov 17 12:09:38.266 INFO [stderr] warning: type alias is never used: `Thunk` Nov 17 12:09:38.266 INFO [stderr] --> src/ch19_advanced_feature/ch19_4_advanced_types.rs:2:1 Nov 17 12:09:38.266 INFO [stderr] | Nov 17 12:09:38.266 INFO [stderr] 2 | type Thunk = Box; Nov 17 12:09:38.266 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 17 12:09:38.266 INFO [stderr] Nov 17 12:09:38.266 INFO [stderr] warning: function is never used: `bar` Nov 17 12:09:38.266 INFO [stderr] --> src/ch19_advanced_feature/ch19_4_advanced_types.rs:9:1 Nov 17 12:09:38.266 INFO [stderr] | Nov 17 12:09:38.266 INFO [stderr] 9 | fn bar() -> ! { Nov 17 12:09:38.266 INFO [stderr] | ^^^^^^^^^^^^^ Nov 17 12:09:38.266 INFO [stderr] Nov 17 12:09:38.266 INFO [stderr] warning: function is never used: `generic` Nov 17 12:09:38.266 INFO [stderr] --> src/ch19_advanced_feature/ch19_4_advanced_types.rs:18:1 Nov 17 12:09:38.266 INFO [stderr] | Nov 17 12:09:38.266 INFO [stderr] 18 | fn generic(t: T){} Nov 17 12:09:38.266 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^ Nov 17 12:09:38.266 INFO [stderr] Nov 17 12:09:38.266 INFO [stderr] warning: function is never used: `generic2` Nov 17 12:09:38.266 INFO [stderr] --> src/ch19_advanced_feature/ch19_4_advanced_types.rs:19:1 Nov 17 12:09:38.266 INFO [stderr] | Nov 17 12:09:38.266 INFO [stderr] 19 | fn generic2(t: T) {} Nov 17 12:09:38.266 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 17 12:09:38.266 INFO [stderr] Nov 17 12:09:38.266 INFO [stderr] warning: function is never used: `generic3` Nov 17 12:09:38.266 INFO [stderr] --> src/ch19_advanced_feature/ch19_4_advanced_types.rs:20:1 Nov 17 12:09:38.266 INFO [stderr] | Nov 17 12:09:38.266 INFO [stderr] 20 | fn generic3(t: &T) {} Nov 17 12:09:38.266 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 17 12:09:38.266 INFO [stderr] Nov 17 12:09:38.266 INFO [stderr] warning: function is never used: `add_one` Nov 17 12:09:38.266 INFO [stderr] --> src/ch19_advanced_feature/ch19_5_advanced_func_closures.rs:1:1 Nov 17 12:09:38.266 INFO [stderr] | Nov 17 12:09:38.266 INFO [stderr] 1 | fn add_one(x: i32) -> i32 { x + 1 } Nov 17 12:09:38.266 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 17 12:09:38.266 INFO [stderr] Nov 17 12:09:38.266 INFO [stderr] warning: function is never used: `do_twice` Nov 17 12:09:38.266 INFO [stderr] --> src/ch19_advanced_feature/ch19_5_advanced_func_closures.rs:3:1 Nov 17 12:09:38.266 INFO [stderr] | Nov 17 12:09:38.266 INFO [stderr] 3 | fn do_twice(f: fn(i32) -> i32, arg: i32) -> i32 { Nov 17 12:09:38.266 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 17 12:09:38.266 INFO [stderr] Nov 17 12:09:38.266 INFO [stderr] warning: function is never used: `returns_closure` Nov 17 12:09:38.266 INFO [stderr] --> src/ch19_advanced_feature/ch19_5_advanced_func_closures.rs:25:1 Nov 17 12:09:38.266 INFO [stderr] | Nov 17 12:09:38.266 INFO [stderr] 25 | fn returns_closure() -> Box i32> { Nov 17 12:09:38.266 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 17 12:09:38.266 INFO [stderr] Nov 17 12:09:38.271 INFO [stderr] warning: function `gDistance` should have a snake case name such as `g_distance` Nov 17 12:09:38.271 INFO [stderr] --> src/ch19_advanced_feature/ch19_3_advanced_traits.rs:19:1 Nov 17 12:09:38.271 INFO [stderr] | Nov 17 12:09:38.271 INFO [stderr] 19 | fn gDistance>(graph: &G, start: &N, end: &N) -> u32 { 1 } Nov 17 12:09:38.271 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 17 12:09:38.271 INFO [stderr] | Nov 17 12:09:38.271 INFO [stderr] = note: #[warn(non_snake_case)] on by default Nov 17 12:09:38.271 INFO [stderr] Nov 17 12:09:38.271 INFO [stderr] warning: function `aDistance` should have a snake case name such as `a_distance` Nov 17 12:09:38.271 INFO [stderr] --> src/ch19_advanced_feature/ch19_3_advanced_traits.rs:28:1 Nov 17 12:09:38.271 INFO [stderr] | Nov 17 12:09:38.271 INFO [stderr] 28 | / fn aDistance(graph: &G, start: &G::Node, end: &G::Node) -> u32 { Nov 17 12:09:38.271 INFO [stderr] 29 | | 1 Nov 17 12:09:38.271 INFO [stderr] 30 | | } Nov 17 12:09:38.271 INFO [stderr] | |_^ Nov 17 12:09:38.271 INFO [stderr] Nov 17 12:09:38.715 INFO [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1.05s Nov 17 12:09:38.718 INFO [stderr] su: No module specific data is present Nov 17 12:09:39.388 INFO running `"docker" "inspect" "3aa256f2d592108cc9363fae1232fffa66f39ec4383536dd7f299b54b304e9bc"` Nov 17 12:09:39.655 INFO running `"docker" "rm" "-f" "3aa256f2d592108cc9363fae1232fffa66f39ec4383536dd7f299b54b304e9bc"` Nov 17 12:09:40.079 INFO [stdout] 3aa256f2d592108cc9363fae1232fffa66f39ec4383536dd7f299b54b304e9bc Nov 17 12:09:40.081 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55982/worker-1/master#6b9b97bd9b704f85f0184f7a213cc4d62bd9654c:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/pr-55982/master#6b9b97bd9b704f85f0184f7a213cc4d62bd9654c:/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 +6b9b97bd9b704f85f0184f7a213cc4d62bd9654c-alt test --frozen --no-run" "-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 17 12:09:40.507 INFO [stdout] 64f338608dc2c8f93b61a2786a7b1028191c85763943f6e92a5093cc28ef7eeb Nov 17 12:09:40.509 INFO running `"docker" "start" "-a" "64f338608dc2c8f93b61a2786a7b1028191c85763943f6e92a5093cc28ef7eeb"` Nov 17 12:09:41.418 INFO [stderr] usermod: no changes Nov 17 12:09:41.484 INFO [stderr] Compiling learn-rust v0.1.0 (/source) Nov 17 12:09:41.999 INFO [stderr] warning: unused import: `std::rc::Rc` Nov 17 12:09:41.999 INFO [stderr] --> src/ch16_concurrency/ch16_3_shared_state.rs:3:5 Nov 17 12:09:41.999 INFO [stderr] | Nov 17 12:09:41.999 INFO [stderr] 3 | use std::rc::Rc; Nov 17 12:09:41.999 INFO [stderr] | ^^^^^^^^^^^ Nov 17 12:09:41.999 INFO [stderr] | Nov 17 12:09:41.999 INFO [stderr] = note: #[warn(unused_imports)] on by default Nov 17 12:09:41.999 INFO [stderr] Nov 17 12:09:42.000 INFO [stderr] warning: unused import: `std::io` Nov 17 12:09:42.000 INFO [stderr] --> src/ch19_advanced_feature/ch19_4_advanced_types.rs:4:5 Nov 17 12:09:42.000 INFO [stderr] | Nov 17 12:09:42.000 INFO [stderr] 4 | use std::io; Nov 17 12:09:42.000 INFO [stderr] | ^^^^^^^ Nov 17 12:09:42.000 INFO [stderr] Nov 17 12:09:42.596 INFO [stderr] warning: unused variable: `ip_type` Nov 17 12:09:42.596 INFO [stderr] --> src/ch6_enums.rs:53:10 Nov 17 12:09:42.596 INFO [stderr] | Nov 17 12:09:42.596 INFO [stderr] 53 | fn route(ip_type: IpAddrKind) {} Nov 17 12:09:42.596 INFO [stderr] | ^^^^^^^ help: consider using `_ip_type` instead Nov 17 12:09:42.596 INFO [stderr] | Nov 17 12:09:42.596 INFO [stderr] = note: #[warn(unused_variables)] on by default Nov 17 12:09:42.603 INFO [stderr] Nov 17 12:09:42.603 INFO [stderr] warning: unused variable: `t` Nov 17 12:09:42.603 INFO [stderr] --> src/ch10_generic_trait_lifetime.rs:113:58 Nov 17 12:09:42.603 INFO [stderr] | Nov 17 12:09:42.603 INFO [stderr] 113 | fn some_function(t: T, u: U) -> i32 { Nov 17 12:09:42.603 INFO [stderr] | ^ help: consider using `_t` instead Nov 17 12:09:42.603 INFO [stderr] Nov 17 12:09:42.603 INFO [stderr] warning: unused variable: `u` Nov 17 12:09:42.603 INFO [stderr] --> src/ch10_generic_trait_lifetime.rs:113:64 Nov 17 12:09:42.603 INFO [stderr] | Nov 17 12:09:42.603 INFO [stderr] 113 | fn some_function(t: T, u: U) -> i32 { Nov 17 12:09:42.603 INFO [stderr] | ^ help: consider using `_u` instead Nov 17 12:09:42.604 INFO [stderr] Nov 17 12:09:42.604 INFO [stderr] warning: unused variable: `t` Nov 17 12:09:42.604 INFO [stderr] --> src/ch10_generic_trait_lifetime.rs:117:25 Nov 17 12:09:42.604 INFO [stderr] | Nov 17 12:09:42.604 INFO [stderr] 117 | fn some_function2(t: T, u: U) -> i32 Nov 17 12:09:42.604 INFO [stderr] | ^ help: consider using `_t` instead Nov 17 12:09:42.604 INFO [stderr] Nov 17 12:09:42.604 INFO [stderr] warning: unused variable: `u` Nov 17 12:09:42.604 INFO [stderr] --> src/ch10_generic_trait_lifetime.rs:117:31 Nov 17 12:09:42.604 INFO [stderr] | Nov 17 12:09:42.604 INFO [stderr] 117 | fn some_function2(t: T, u: U) -> i32 Nov 17 12:09:42.604 INFO [stderr] | ^ help: consider using `_u` instead Nov 17 12:09:42.604 INFO [stderr] Nov 17 12:09:42.604 INFO [stderr] warning: unused variable: `c1` Nov 17 12:09:42.604 INFO [stderr] --> src/ch14_cargo_crates.rs:37:16 Nov 17 12:09:42.604 INFO [stderr] | Nov 17 12:09:42.604 INFO [stderr] 37 | pub fn mix(c1: PrimaryColor, c2: PrimaryColor) -> SecondaryColor { Nov 17 12:09:42.604 INFO [stderr] | ^^ help: consider using `_c1` instead Nov 17 12:09:42.604 INFO [stderr] Nov 17 12:09:42.604 INFO [stderr] warning: unused variable: `c2` Nov 17 12:09:42.604 INFO [stderr] --> src/ch14_cargo_crates.rs:37:34 Nov 17 12:09:42.605 INFO [stderr] | Nov 17 12:09:42.605 INFO [stderr] 37 | pub fn mix(c1: PrimaryColor, c2: PrimaryColor) -> SecondaryColor { Nov 17 12:09:42.605 INFO [stderr] | ^^ help: consider using `_c2` instead Nov 17 12:09:42.605 INFO [stderr] Nov 17 12:09:42.605 INFO [stderr] warning: unused variable: `x` Nov 17 12:09:42.605 INFO [stderr] --> src/ch18_pattern_match.rs:245:8 Nov 17 12:09:42.605 INFO [stderr] | Nov 17 12:09:42.605 INFO [stderr] 245 | fn foo(x: i32) { Nov 17 12:09:42.605 INFO [stderr] | ^ help: consider using `_x` instead Nov 17 12:09:42.605 INFO [stderr] Nov 17 12:09:42.605 INFO [stderr] warning: unused variable: `graph` Nov 17 12:09:42.605 INFO [stderr] --> src/ch19_advanced_feature/ch19_3_advanced_traits.rs:19:37 Nov 17 12:09:42.605 INFO [stderr] | Nov 17 12:09:42.605 INFO [stderr] 19 | fn gDistance>(graph: &G, start: &N, end: &N) -> u32 { 1 } Nov 17 12:09:42.605 INFO [stderr] | ^^^^^ help: consider using `_graph` instead Nov 17 12:09:42.605 INFO [stderr] Nov 17 12:09:42.605 INFO [stderr] warning: unused variable: `start` Nov 17 12:09:42.605 INFO [stderr] --> src/ch19_advanced_feature/ch19_3_advanced_traits.rs:19:48 Nov 17 12:09:42.605 INFO [stderr] | Nov 17 12:09:42.605 INFO [stderr] 19 | fn gDistance>(graph: &G, start: &N, end: &N) -> u32 { 1 } Nov 17 12:09:42.605 INFO [stderr] | ^^^^^ help: consider using `_start` instead Nov 17 12:09:42.605 INFO [stderr] Nov 17 12:09:42.606 INFO [stderr] warning: unused variable: `end` Nov 17 12:09:42.606 INFO [stderr] --> src/ch19_advanced_feature/ch19_3_advanced_traits.rs:19:59 Nov 17 12:09:42.606 INFO [stderr] | Nov 17 12:09:42.606 INFO [stderr] 19 | fn gDistance>(graph: &G, start: &N, end: &N) -> u32 { 1 } Nov 17 12:09:42.606 INFO [stderr] | ^^^ help: consider using `_end` instead Nov 17 12:09:42.606 INFO [stderr] Nov 17 12:09:42.606 INFO [stderr] warning: unused variable: `graph` Nov 17 12:09:42.606 INFO [stderr] --> src/ch19_advanced_feature/ch19_3_advanced_traits.rs:28:25 Nov 17 12:09:42.606 INFO [stderr] | Nov 17 12:09:42.606 INFO [stderr] 28 | fn aDistance(graph: &G, start: &G::Node, end: &G::Node) -> u32 { Nov 17 12:09:42.606 INFO [stderr] | ^^^^^ help: consider using `_graph` instead Nov 17 12:09:42.606 INFO [stderr] Nov 17 12:09:42.606 INFO [stderr] warning: unused variable: `start` Nov 17 12:09:42.606 INFO [stderr] --> src/ch19_advanced_feature/ch19_3_advanced_traits.rs:28:36 Nov 17 12:09:42.606 INFO [stderr] | Nov 17 12:09:42.606 INFO [stderr] 28 | fn aDistance(graph: &G, start: &G::Node, end: &G::Node) -> u32 { Nov 17 12:09:42.606 INFO [stderr] | ^^^^^ help: consider using `_start` instead Nov 17 12:09:42.606 INFO [stderr] Nov 17 12:09:42.606 INFO [stderr] warning: unused variable: `end` Nov 17 12:09:42.606 INFO [stderr] --> src/ch19_advanced_feature/ch19_3_advanced_traits.rs:28:53 Nov 17 12:09:42.607 INFO [stderr] | Nov 17 12:09:42.607 INFO [stderr] 28 | fn aDistance(graph: &G, start: &G::Node, end: &G::Node) -> u32 { Nov 17 12:09:42.607 INFO [stderr] | ^^^ help: consider using `_end` instead Nov 17 12:09:42.608 INFO [stderr] Nov 17 12:09:42.608 INFO [stderr] warning: unused variable: `graph` Nov 17 12:09:42.608 INFO [stderr] --> src/ch19_advanced_feature/ch19_3_advanced_traits.rs:33:19 Nov 17 12:09:42.608 INFO [stderr] | Nov 17 12:09:42.608 INFO [stderr] 33 | fn distance(graph: &GGraph, start: &N, end: &N) -> u32 { 1 } Nov 17 12:09:42.608 INFO [stderr] | ^^^^^ help: consider using `_graph` instead Nov 17 12:09:42.608 INFO [stderr] Nov 17 12:09:42.608 INFO [stderr] warning: unused variable: `start` Nov 17 12:09:42.608 INFO [stderr] --> src/ch19_advanced_feature/ch19_3_advanced_traits.rs:33:41 Nov 17 12:09:42.608 INFO [stderr] | Nov 17 12:09:42.608 INFO [stderr] 33 | fn distance(graph: &GGraph, start: &N, end: &N) -> u32 { 1 } Nov 17 12:09:42.608 INFO [stderr] | ^^^^^ help: consider using `_start` instead Nov 17 12:09:42.608 INFO [stderr] Nov 17 12:09:42.608 INFO [stderr] warning: unused variable: `end` Nov 17 12:09:42.608 INFO [stderr] --> src/ch19_advanced_feature/ch19_3_advanced_traits.rs:33:52 Nov 17 12:09:42.608 INFO [stderr] | Nov 17 12:09:42.608 INFO [stderr] 33 | fn distance(graph: &GGraph, start: &N, end: &N) -> u32 { 1 } Nov 17 12:09:42.608 INFO [stderr] | ^^^ help: consider using `_end` instead Nov 17 12:09:42.608 INFO [stderr] Nov 17 12:09:42.608 INFO [stderr] warning: unused variable: `graph` Nov 17 12:09:42.608 INFO [stderr] --> src/ch19_advanced_feature/ch19_3_advanced_traits.rs:35:13 Nov 17 12:09:42.608 INFO [stderr] | Nov 17 12:09:42.608 INFO [stderr] 35 | fn traverse(graph: &AGraph) {} Nov 17 12:09:42.608 INFO [stderr] | ^^^^^ help: consider using `_graph` instead Nov 17 12:09:42.608 INFO [stderr] Nov 17 12:09:42.608 INFO [stderr] warning: unused variable: `t` Nov 17 12:09:42.608 INFO [stderr] --> src/ch19_advanced_feature/ch19_4_advanced_types.rs:18:15 Nov 17 12:09:42.608 INFO [stderr] | Nov 17 12:09:42.608 INFO [stderr] 18 | fn generic(t: T){} Nov 17 12:09:42.608 INFO [stderr] | ^ help: consider using `_t` instead Nov 17 12:09:42.608 INFO [stderr] Nov 17 12:09:42.608 INFO [stderr] warning: unused variable: `t` Nov 17 12:09:42.608 INFO [stderr] --> src/ch19_advanced_feature/ch19_4_advanced_types.rs:19:23 Nov 17 12:09:42.608 INFO [stderr] | Nov 17 12:09:42.608 INFO [stderr] 19 | fn generic2(t: T) {} Nov 17 12:09:42.608 INFO [stderr] | ^ help: consider using `_t` instead Nov 17 12:09:42.609 INFO [stderr] Nov 17 12:09:42.609 INFO [stderr] warning: unused variable: `t` Nov 17 12:09:42.609 INFO [stderr] --> src/ch19_advanced_feature/ch19_4_advanced_types.rs:20:24 Nov 17 12:09:42.609 INFO [stderr] | Nov 17 12:09:42.609 INFO [stderr] 20 | fn generic3(t: &T) {} Nov 17 12:09:42.609 INFO [stderr] | ^ help: consider using `_t` instead Nov 17 12:09:42.609 INFO [stderr] Nov 17 12:09:42.609 INFO [stderr] warning: unused variable: `s2` Nov 17 12:09:42.609 INFO [stderr] --> src/ch4_ownership.rs:20:13 Nov 17 12:09:42.609 INFO [stderr] | Nov 17 12:09:42.609 INFO [stderr] 20 | let s2 = s1; Nov 17 12:09:42.609 INFO [stderr] | ^^ help: consider using `_s2` instead Nov 17 12:09:42.609 INFO [stderr] Nov 17 12:09:42.609 INFO [stderr] warning: unused variable: `s1` Nov 17 12:09:42.609 INFO [stderr] --> src/ch4_ownership.rs:46:13 Nov 17 12:09:42.609 INFO [stderr] | Nov 17 12:09:42.609 INFO [stderr] 46 | let s1 = gives_ownership(); // gives_ownership moves its return Nov 17 12:09:42.609 INFO [stderr] | ^^ help: consider using `_s1` instead Nov 17 12:09:42.609 INFO [stderr] Nov 17 12:09:42.609 INFO [stderr] warning: unused variable: `s3` Nov 17 12:09:42.609 INFO [stderr] --> src/ch4_ownership.rs:51:13 Nov 17 12:09:42.609 INFO [stderr] | Nov 17 12:09:42.609 INFO [stderr] 51 | let s3 = takes_and_gives_back(s2); // s2 is moved into Nov 17 12:09:42.609 INFO [stderr] | ^^ help: consider using `_s3` instead Nov 17 12:09:42.609 INFO [stderr] Nov 17 12:09:42.609 INFO [stderr] warning: unused variable: `r1` Nov 17 12:09:42.609 INFO [stderr] --> src/ch4_ownership.rs:78:17 Nov 17 12:09:42.609 INFO [stderr] | Nov 17 12:09:42.609 INFO [stderr] 78 | let r1 = &mut s; Nov 17 12:09:42.609 INFO [stderr] | ^^ help: consider using `_r1` instead Nov 17 12:09:42.609 INFO [stderr] Nov 17 12:09:42.609 INFO [stderr] warning: unused variable: `r2` Nov 17 12:09:42.609 INFO [stderr] --> src/ch4_ownership.rs:82:17 Nov 17 12:09:42.609 INFO [stderr] | Nov 17 12:09:42.609 INFO [stderr] 82 | let r2 = &mut s; Nov 17 12:09:42.609 INFO [stderr] | ^^ help: consider using `_r2` instead Nov 17 12:09:42.609 INFO [stderr] Nov 17 12:09:42.609 INFO [stderr] warning: unused variable: `r1` Nov 17 12:09:42.609 INFO [stderr] --> src/ch4_ownership.rs:86:17 Nov 17 12:09:42.609 INFO [stderr] | Nov 17 12:09:42.609 INFO [stderr] 86 | let r1 = &s; // no problem Nov 17 12:09:42.609 INFO [stderr] | ^^ help: consider using `_r1` instead Nov 17 12:09:42.609 INFO [stderr] Nov 17 12:09:42.609 INFO [stderr] warning: unused variable: `r2` Nov 17 12:09:42.609 INFO [stderr] --> src/ch4_ownership.rs:87:17 Nov 17 12:09:42.609 INFO [stderr] | Nov 17 12:09:42.609 INFO [stderr] 87 | let r2 = &s; // no problem Nov 17 12:09:42.609 INFO [stderr] | ^^ help: consider using `_r2` instead Nov 17 12:09:42.609 INFO [stderr] Nov 17 12:09:42.609 INFO [stderr] warning: unused variable: `user2` Nov 17 12:09:42.609 INFO [stderr] --> src/ch5_structs.rs:24:9 Nov 17 12:09:42.609 INFO [stderr] | Nov 17 12:09:42.609 INFO [stderr] 24 | let user2 = User { Nov 17 12:09:42.609 INFO [stderr] | ^^^^^ help: consider using `_user2` instead Nov 17 12:09:42.609 INFO [stderr] Nov 17 12:09:42.609 INFO [stderr] warning: unused variable: `black` Nov 17 12:09:42.609 INFO [stderr] --> src/ch5_structs.rs:30:9 Nov 17 12:09:42.609 INFO [stderr] | Nov 17 12:09:42.609 INFO [stderr] 30 | let black = Color(0, 0, 0); Nov 17 12:09:42.609 INFO [stderr] | ^^^^^ help: consider using `_black` instead Nov 17 12:09:42.609 INFO [stderr] Nov 17 12:09:42.609 INFO [stderr] warning: unused variable: `origin` Nov 17 12:09:42.609 INFO [stderr] --> src/ch5_structs.rs:31:9 Nov 17 12:09:42.609 INFO [stderr] | Nov 17 12:09:42.609 INFO [stderr] 31 | let origin = Point(0, 0, 0); Nov 17 12:09:42.609 INFO [stderr] | ^^^^^^ help: consider using `_origin` instead Nov 17 12:09:42.609 INFO [stderr] Nov 17 12:09:42.609 INFO [stderr] warning: unused variable: `v` Nov 17 12:09:42.609 INFO [stderr] --> src/ch8_collections.rs:11:13 Nov 17 12:09:42.609 INFO [stderr] | Nov 17 12:09:42.609 INFO [stderr] 11 | let v: Vec = Vec::new(); Nov 17 12:09:42.609 INFO [stderr] | ^ help: consider using `_v` instead Nov 17 12:09:42.609 INFO [stderr] Nov 17 12:09:42.609 INFO [stderr] warning: unused variable: `v` Nov 17 12:09:42.609 INFO [stderr] --> src/ch8_collections.rs:12:13 Nov 17 12:09:42.609 INFO [stderr] | Nov 17 12:09:42.609 INFO [stderr] 12 | let v = vec![1, 2, 3]; Nov 17 12:09:42.609 INFO [stderr] | ^ help: consider using `_v` instead Nov 17 12:09:42.609 INFO [stderr] Nov 17 12:09:42.609 INFO [stderr] warning: unused variable: `third` Nov 17 12:09:42.609 INFO [stderr] --> src/ch8_collections.rs:25:13 Nov 17 12:09:42.609 INFO [stderr] | Nov 17 12:09:42.609 INFO [stderr] 25 | let third: &i32 = &v[2]; Nov 17 12:09:42.609 INFO [stderr] | ^^^^^ help: consider using `_third` instead Nov 17 12:09:42.609 INFO [stderr] Nov 17 12:09:42.609 INFO [stderr] warning: unused variable: `third` Nov 17 12:09:42.610 INFO [stderr] --> src/ch8_collections.rs:26:13 Nov 17 12:09:42.610 INFO [stderr] | Nov 17 12:09:42.610 INFO [stderr] 26 | let third: Option<&i32> = v.get(2); Nov 17 12:09:42.610 INFO [stderr] | ^^^^^ help: consider using `_third` instead Nov 17 12:09:42.610 INFO [stderr] Nov 17 12:09:42.610 INFO [stderr] warning: unused variable: `first` Nov 17 12:09:42.610 INFO [stderr] --> src/ch8_collections.rs:33:13 Nov 17 12:09:42.610 INFO [stderr] | Nov 17 12:09:42.610 INFO [stderr] 33 | let first = &v[0]; Nov 17 12:09:42.610 INFO [stderr] | ^^^^^ help: consider using `_first` instead Nov 17 12:09:42.610 INFO [stderr] Nov 17 12:09:42.610 INFO [stderr] warning: unused variable: `row` Nov 17 12:09:42.610 INFO [stderr] --> src/ch8_collections.rs:41:13 Nov 17 12:09:42.610 INFO [stderr] | Nov 17 12:09:42.610 INFO [stderr] 41 | let row = vec![ Nov 17 12:09:42.610 INFO [stderr] | ^^^ help: consider using `_row` instead Nov 17 12:09:42.610 INFO [stderr] Nov 17 12:09:42.610 INFO [stderr] warning: unused variable: `s` Nov 17 12:09:42.610 INFO [stderr] --> src/ch8_collections.rs:52:9 Nov 17 12:09:42.610 INFO [stderr] | Nov 17 12:09:42.610 INFO [stderr] 52 | let s = String::from("initial contents"); Nov 17 12:09:42.610 INFO [stderr] | ^ help: consider using `_s` instead Nov 17 12:09:42.610 INFO [stderr] Nov 17 12:09:42.610 INFO [stderr] warning: unused variable: `s` Nov 17 12:09:42.610 INFO [stderr] --> src/ch8_collections.rs:53:9 Nov 17 12:09:42.610 INFO [stderr] | Nov 17 12:09:42.610 INFO [stderr] 53 | let s = "initial contents".to_string(); Nov 17 12:09:42.610 INFO [stderr] | ^ help: consider using `_s` instead Nov 17 12:09:42.610 INFO [stderr] Nov 17 12:09:42.610 INFO [stderr] warning: unused variable: `s3` Nov 17 12:09:42.610 INFO [stderr] --> src/ch8_collections.rs:67:9 Nov 17 12:09:42.610 INFO [stderr] | Nov 17 12:09:42.610 INFO [stderr] 67 | let s3 = s1 + &s2; // Note that s1 has been moved here and can no longer be used Nov 17 12:09:42.610 INFO [stderr] | ^^ help: consider using `_s3` instead Nov 17 12:09:42.610 INFO [stderr] Nov 17 12:09:42.610 INFO [stderr] warning: unused variable: `s` Nov 17 12:09:42.610 INFO [stderr] --> src/ch8_collections.rs:73:9 Nov 17 12:09:42.610 INFO [stderr] | Nov 17 12:09:42.610 INFO [stderr] 73 | let s = format!("{}-{}-{}", s1, s2, s3); Nov 17 12:09:42.610 INFO [stderr] | ^ help: consider using `_s` instead Nov 17 12:09:42.610 INFO [stderr] Nov 17 12:09:42.610 INFO [stderr] warning: unused variable: `s` Nov 17 12:09:42.610 INFO [stderr] --> src/ch8_collections.rs:76:9 Nov 17 12:09:42.610 INFO [stderr] | Nov 17 12:09:42.610 INFO [stderr] 76 | let s = &hello[0..4]; Nov 17 12:09:42.610 INFO [stderr] | ^ help: consider using `_s` instead Nov 17 12:09:42.610 INFO [stderr] Nov 17 12:09:42.610 INFO [stderr] warning: unused variable: `score` Nov 17 12:09:42.610 INFO [stderr] --> src/ch8_collections.rs:100:17 Nov 17 12:09:42.610 INFO [stderr] | Nov 17 12:09:42.610 INFO [stderr] 100 | let score = scores.get(&team_name); Nov 17 12:09:42.610 INFO [stderr] | ^^^^^ help: consider using `_score` instead Nov 17 12:09:42.610 INFO [stderr] Nov 17 12:09:42.610 INFO [stderr] warning: unused variable: `scores` Nov 17 12:09:42.610 INFO [stderr] --> src/ch8_collections.rs:115:13 Nov 17 12:09:42.610 INFO [stderr] | Nov 17 12:09:42.610 INFO [stderr] 115 | let scores: HashMap<_, _> = teams.iter().zip(initial_scores.iter()).collect(); Nov 17 12:09:42.610 INFO [stderr] | ^^^^^^ help: consider using `_scores` instead Nov 17 12:09:42.610 INFO [stderr] Nov 17 12:09:42.610 INFO [stderr] warning: unused variable: `i` Nov 17 12:09:42.610 INFO [stderr] --> src/ch10_generic_trait_lifetime.rs:67:13 Nov 17 12:09:42.610 INFO [stderr] | Nov 17 12:09:42.610 INFO [stderr] 67 | let i = ImportantExcerpt { part: first_sentence }; Nov 17 12:09:42.610 INFO [stderr] | ^ help: consider using `_i` instead Nov 17 12:09:42.610 INFO [stderr] Nov 17 12:09:42.610 INFO [stderr] warning: unused variable: `v1` Nov 17 12:09:42.610 INFO [stderr] --> src/ch13_fp.rs:168:9 Nov 17 12:09:42.610 INFO [stderr] | Nov 17 12:09:42.610 INFO [stderr] 168 | let v1 = c.value(1); Nov 17 12:09:42.610 INFO [stderr] | ^^ help: consider using `_v1` instead Nov 17 12:09:42.610 INFO [stderr] Nov 17 12:09:42.610 INFO [stderr] warning: unused variable: `list` Nov 17 12:09:42.610 INFO [stderr] --> src/ch15_smart_pointers/ch15_1_box.rs:18:9 Nov 17 12:09:42.610 INFO [stderr] | Nov 17 12:09:42.610 INFO [stderr] 18 | let list = Cons(1, Nov 17 12:09:42.610 INFO [stderr] | ^^^^ help: consider using `_list` instead Nov 17 12:09:42.610 INFO [stderr] Nov 17 12:09:42.610 INFO [stderr] warning: unused variable: `audio` Nov 17 12:09:42.610 INFO [stderr] --> src/ch15_smart_pointers/ch15_1_box.rs:66:21 Nov 17 12:09:42.610 INFO [stderr] | Nov 17 12:09:42.610 INFO [stderr] 66 | fn compress_mp3(audio: &[u8]) -> Vec { vec![1, 3] } Nov 17 12:09:42.610 INFO [stderr] | ^^^^^ help: consider using `_audio` instead Nov 17 12:09:42.611 INFO [stderr] Nov 17 12:09:42.611 INFO [stderr] warning: unused variable: `c` Nov 17 12:09:42.611 INFO [stderr] --> src/ch15_smart_pointers/ch15_1_box.rs:84:9 Nov 17 12:09:42.611 INFO [stderr] | Nov 17 12:09:42.611 INFO [stderr] 84 | let c = CustomSmartPointer { data: String::from("some data") }; Nov 17 12:09:42.611 INFO [stderr] | ^ help: consider using `_c` instead Nov 17 12:09:42.611 INFO [stderr] Nov 17 12:09:42.611 INFO [stderr] warning: unused variable: `b` Nov 17 12:09:42.611 INFO [stderr] --> src/ch15_smart_pointers/ch15_4_rc.rs:20:9 Nov 17 12:09:42.611 INFO [stderr] | Nov 17 12:09:42.611 INFO [stderr] 20 | let b = Cons(3, a.clone()); Nov 17 12:09:42.611 INFO [stderr] | ^ help: consider using `_b` instead Nov 17 12:09:42.611 INFO [stderr] Nov 17 12:09:42.611 INFO [stderr] warning: unused variable: `c` Nov 17 12:09:42.611 INFO [stderr] --> src/ch15_smart_pointers/ch15_4_rc.rs:24:13 Nov 17 12:09:42.611 INFO [stderr] | Nov 17 12:09:42.611 INFO [stderr] 24 | let c = Cons(4, a.clone()); Nov 17 12:09:42.611 INFO [stderr] | ^ help: consider using `_c` instead Nov 17 12:09:42.611 INFO [stderr] Nov 17 12:09:42.611 INFO [stderr] warning: unused variable: `r1` Nov 17 12:09:42.611 INFO [stderr] --> src/ch15_smart_pointers/ch15_5_ref_cell.rs:30:13 Nov 17 12:09:42.611 INFO [stderr] | Nov 17 12:09:42.611 INFO [stderr] 30 | let r1 = s.borrow_mut(); Nov 17 12:09:42.611 INFO [stderr] | ^^ help: consider using `_r1` instead Nov 17 12:09:42.611 INFO [stderr] Nov 17 12:09:42.611 INFO [stderr] warning: unused variable: `x` Nov 17 12:09:42.611 INFO [stderr] --> src/ch18_pattern_match.rs:52:13 Nov 17 12:09:42.611 INFO [stderr] | Nov 17 12:09:42.611 INFO [stderr] 52 | let x = 5;//let PATTERN = EXPRESSION; Nov 17 12:09:42.611 INFO [stderr] | ^ help: consider using `_x` instead Nov 17 12:09:42.611 INFO [stderr] Nov 17 12:09:42.611 INFO [stderr] warning: unused variable: `x` Nov 17 12:09:42.611 INFO [stderr] --> src/ch18_pattern_match.rs:53:14 Nov 17 12:09:42.611 INFO [stderr] | Nov 17 12:09:42.611 INFO [stderr] 53 | let (x, y, z) = (1, 2, 3); Nov 17 12:09:42.611 INFO [stderr] | ^ help: consider using `_x` instead Nov 17 12:09:42.611 INFO [stderr] Nov 17 12:09:42.611 INFO [stderr] warning: unused variable: `y` Nov 17 12:09:42.611 INFO [stderr] --> src/ch18_pattern_match.rs:53:17 Nov 17 12:09:42.611 INFO [stderr] | Nov 17 12:09:42.611 INFO [stderr] 53 | let (x, y, z) = (1, 2, 3); Nov 17 12:09:42.611 INFO [stderr] | ^ help: consider using `_y` instead Nov 17 12:09:42.611 INFO [stderr] Nov 17 12:09:42.611 INFO [stderr] warning: unused variable: `z` Nov 17 12:09:42.611 INFO [stderr] --> src/ch18_pattern_match.rs:53:20 Nov 17 12:09:42.611 INFO [stderr] | Nov 17 12:09:42.611 INFO [stderr] 53 | let (x, y, z) = (1, 2, 3); Nov 17 12:09:42.611 INFO [stderr] | ^ help: consider using `_z` instead Nov 17 12:09:42.611 INFO [stderr] Nov 17 12:09:42.611 INFO [stderr] warning: unused variable: `sum_of_squares` Nov 17 12:09:42.611 INFO [stderr] --> src/ch18_pattern_match.rs:141:17 Nov 17 12:09:42.611 INFO [stderr] | Nov 17 12:09:42.611 INFO [stderr] 141 | let sum_of_squares: i32 = points Nov 17 12:09:42.611 INFO [stderr] | ^^^^^^^^^^^^^^ help: consider using `_sum_of_squares` instead Nov 17 12:09:42.611 INFO [stderr] Nov 17 12:09:42.611 INFO [stderr] warning: unused variable: `feet` Nov 17 12:09:42.611 INFO [stderr] --> src/ch18_pattern_match.rs:146:19 Nov 17 12:09:42.611 INFO [stderr] | Nov 17 12:09:42.611 INFO [stderr] 146 | let ((feet, inches), Point {x, y}) = ((3, 10), Point { x: 3, y: -10 }); Nov 17 12:09:42.611 INFO [stderr] | ^^^^ help: consider using `_feet` instead Nov 17 12:09:42.611 INFO [stderr] Nov 17 12:09:42.611 INFO [stderr] warning: unused variable: `inches` Nov 17 12:09:42.611 INFO [stderr] --> src/ch18_pattern_match.rs:146:25 Nov 17 12:09:42.611 INFO [stderr] | Nov 17 12:09:42.611 INFO [stderr] 146 | let ((feet, inches), Point {x, y}) = ((3, 10), Point { x: 3, y: -10 }); Nov 17 12:09:42.611 INFO [stderr] | ^^^^^^ help: consider using `_inches` instead Nov 17 12:09:42.611 INFO [stderr] Nov 17 12:09:42.611 INFO [stderr] warning: unused variable: `x` Nov 17 12:09:42.611 INFO [stderr] --> src/ch18_pattern_match.rs:146:41 Nov 17 12:09:42.611 INFO [stderr] | Nov 17 12:09:42.611 INFO [stderr] 146 | let ((feet, inches), Point {x, y}) = ((3, 10), Point { x: 3, y: -10 }); Nov 17 12:09:42.611 INFO [stderr] | ^ help: try ignoring the field: `x: _` Nov 17 12:09:42.611 INFO [stderr] Nov 17 12:09:42.611 INFO [stderr] warning: unused variable: `y` Nov 17 12:09:42.611 INFO [stderr] --> src/ch18_pattern_match.rs:146:44 Nov 17 12:09:42.611 INFO [stderr] | Nov 17 12:09:42.611 INFO [stderr] 146 | let ((feet, inches), Point {x, y}) = ((3, 10), Point { x: 3, y: -10 }); Nov 17 12:09:42.611 INFO [stderr] | ^ help: try ignoring the field: `y: _` Nov 17 12:09:42.611 INFO [stderr] Nov 17 12:09:42.611 INFO [stderr] warning: unused variable: `y` Nov 17 12:09:42.611 INFO [stderr] --> src/ch18_pattern_match.rs:160:17 Nov 17 12:09:42.611 INFO [stderr] | Nov 17 12:09:42.611 INFO [stderr] 160 | let y = 10; Nov 17 12:09:42.611 INFO [stderr] | ^ help: consider using `_y` instead Nov 17 12:09:42.612 INFO [stderr] Nov 17 12:09:42.612 INFO [stderr] warning: unused variable: `r` Nov 17 12:09:42.612 INFO [stderr] --> src/ch19_advanced_feature/ch19_1_unsafe.rs:13:9 Nov 17 12:09:42.612 INFO [stderr] | Nov 17 12:09:42.612 INFO [stderr] 13 | let r = address as *const i32; Nov 17 12:09:42.612 INFO [stderr] | ^ help: consider using `_r` instead Nov 17 12:09:42.612 INFO [stderr] Nov 17 12:09:42.612 INFO [stderr] warning: unused variable: `obj` Nov 17 12:09:42.612 INFO [stderr] --> src/ch19_advanced_feature/ch19_2_advanced_lifetime.rs:37:9 Nov 17 12:09:42.612 INFO [stderr] | Nov 17 12:09:42.612 INFO [stderr] 37 | let obj = Box::new(Bar { x: &num }) as Box; Nov 17 12:09:42.612 INFO [stderr] | ^^^ help: consider using `_obj` instead Nov 17 12:09:42.612 INFO [stderr] Nov 17 12:09:42.612 INFO [stderr] warning: unused variable: `list_of_strings` Nov 17 12:09:42.612 INFO [stderr] --> src/ch19_advanced_feature/ch19_5_advanced_func_closures.rs:13:9 Nov 17 12:09:42.612 INFO [stderr] | Nov 17 12:09:42.612 INFO [stderr] 13 | let list_of_strings: Vec = list_of_numbers Nov 17 12:09:42.612 INFO [stderr] | ^^^^^^^^^^^^^^^ help: consider using `_list_of_strings` instead Nov 17 12:09:42.612 INFO [stderr] Nov 17 12:09:42.612 INFO [stderr] warning: unused variable: `list_of_strings` Nov 17 12:09:42.612 INFO [stderr] --> src/ch19_advanced_feature/ch19_5_advanced_func_closures.rs:18:9 Nov 17 12:09:42.612 INFO [stderr] | Nov 17 12:09:42.612 INFO [stderr] 18 | let list_of_strings: Vec = list_of_numbers Nov 17 12:09:42.612 INFO [stderr] | ^^^^^^^^^^^^^^^ help: consider using `_list_of_strings` instead Nov 17 12:09:42.612 INFO [stderr] Nov 17 12:09:42.612 INFO [stderr] warning: unused variable: `post` Nov 17 12:09:42.612 INFO [stderr] --> src/ch17_oop/mod.rs:184:27 Nov 17 12:09:42.612 INFO [stderr] | Nov 17 12:09:42.612 INFO [stderr] 184 | fn content<'a>(&self, post: &'a Post) -> &'a str { Nov 17 12:09:42.612 INFO [stderr] | ^^^^ help: consider using `_post` instead Nov 17 12:09:42.612 INFO [stderr] Nov 17 12:09:42.612 INFO [stderr] warning: unused variable: `content` Nov 17 12:09:42.612 INFO [stderr] --> src/ch17_oop/mod.rs:188:24 Nov 17 12:09:42.612 INFO [stderr] | Nov 17 12:09:42.612 INFO [stderr] 188 | fn add_text(&self, content: &mut String, text: &str) {} Nov 17 12:09:42.612 INFO [stderr] | ^^^^^^^ help: consider using `_content` instead Nov 17 12:09:42.612 INFO [stderr] Nov 17 12:09:42.612 INFO [stderr] warning: unused variable: `text` Nov 17 12:09:42.612 INFO [stderr] --> src/ch17_oop/mod.rs:188:46 Nov 17 12:09:42.612 INFO [stderr] | Nov 17 12:09:42.612 INFO [stderr] 188 | fn add_text(&self, content: &mut String, text: &str) {} Nov 17 12:09:42.612 INFO [stderr] | ^^^^ help: consider using `_text` instead Nov 17 12:09:42.612 INFO [stderr] Nov 17 12:09:42.646 INFO [stderr] warning: variable does not need to be mutable Nov 17 12:09:42.646 INFO [stderr] --> src/ch8_collections.rs:31:13 Nov 17 12:09:42.646 INFO [stderr] | Nov 17 12:09:42.646 INFO [stderr] 31 | let mut v = vec![1, 2, 3, 4, 5]; Nov 17 12:09:42.646 INFO [stderr] | ----^ Nov 17 12:09:42.646 INFO [stderr] | | Nov 17 12:09:42.646 INFO [stderr] | help: remove this `mut` Nov 17 12:09:42.646 INFO [stderr] | Nov 17 12:09:42.646 INFO [stderr] = note: #[warn(unused_mut)] on by default Nov 17 12:09:42.646 INFO [stderr] Nov 17 12:09:42.843 INFO [stderr] warning: function is never used: `makes_copy` Nov 17 12:09:42.843 INFO [stderr] --> src/ch4_ownership.rs:111:1 Nov 17 12:09:42.843 INFO [stderr] | Nov 17 12:09:42.843 INFO [stderr] 111 | fn makes_copy(some_integer: i32) { Nov 17 12:09:42.843 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 17 12:09:42.843 INFO [stderr] | Nov 17 12:09:42.843 INFO [stderr] = note: #[warn(dead_code)] on by default Nov 17 12:09:42.844 INFO [stderr] Nov 17 12:09:42.844 INFO [stderr] warning: field is never used: `username` Nov 17 12:09:42.844 INFO [stderr] --> src/ch5_structs.rs:2:5 Nov 17 12:09:42.844 INFO [stderr] | Nov 17 12:09:42.844 INFO [stderr] 2 | username: String, Nov 17 12:09:42.844 INFO [stderr] | ^^^^^^^^^^^^^^^^ Nov 17 12:09:42.844 INFO [stderr] Nov 17 12:09:42.844 INFO [stderr] warning: field is never used: `sign_in_count` Nov 17 12:09:42.844 INFO [stderr] --> src/ch5_structs.rs:4:5 Nov 17 12:09:42.844 INFO [stderr] | Nov 17 12:09:42.844 INFO [stderr] 4 | sign_in_count: u64, Nov 17 12:09:42.844 INFO [stderr] | ^^^^^^^^^^^^^^^^^^ Nov 17 12:09:42.844 INFO [stderr] Nov 17 12:09:42.846 INFO [stderr] warning: field is never used: `active` Nov 17 12:09:42.846 INFO [stderr] --> src/ch5_structs.rs:5:5 Nov 17 12:09:42.846 INFO [stderr] | Nov 17 12:09:42.846 INFO [stderr] 5 | active: bool, Nov 17 12:09:42.846 INFO [stderr] | ^^^^^^^^^^^^ Nov 17 12:09:42.846 INFO [stderr] Nov 17 12:09:42.846 INFO [stderr] warning: function is never used: `build_user` Nov 17 12:09:42.846 INFO [stderr] --> src/ch5_structs.rs:34:1 Nov 17 12:09:42.846 INFO [stderr] | Nov 17 12:09:42.846 INFO [stderr] 34 | fn build_user(email: String, username: String) -> User { Nov 17 12:09:42.846 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 17 12:09:42.846 INFO [stderr] Nov 17 12:09:42.846 INFO [stderr] warning: enum is never used: `UsState` Nov 17 12:09:42.846 INFO [stderr] --> src/ch6_enums.rs:7:1 Nov 17 12:09:42.846 INFO [stderr] | Nov 17 12:09:42.846 INFO [stderr] 7 | enum UsState { Nov 17 12:09:42.846 INFO [stderr] | ^^^^^^^^^^^^ Nov 17 12:09:42.846 INFO [stderr] Nov 17 12:09:42.846 INFO [stderr] warning: enum is never used: `Coin` Nov 17 12:09:42.846 INFO [stderr] --> src/ch6_enums.rs:13:1 Nov 17 12:09:42.846 INFO [stderr] | Nov 17 12:09:42.846 INFO [stderr] 13 | enum Coin { Nov 17 12:09:42.846 INFO [stderr] | ^^^^^^^^^ Nov 17 12:09:42.846 INFO [stderr] Nov 17 12:09:42.846 INFO [stderr] warning: function is never used: `value_in_cents` Nov 17 12:09:42.846 INFO [stderr] --> src/ch6_enums.rs:20:1 Nov 17 12:09:42.846 INFO [stderr] | Nov 17 12:09:42.846 INFO [stderr] 20 | fn value_in_cents(coin: Coin) -> u32 { Nov 17 12:09:42.846 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 17 12:09:42.846 INFO [stderr] Nov 17 12:09:42.846 INFO [stderr] warning: function is never used: `nested_modules` Nov 17 12:09:42.846 INFO [stderr] --> src/ch7_modules.rs:21:13 Nov 17 12:09:42.846 INFO [stderr] | Nov 17 12:09:42.846 INFO [stderr] 21 | pub fn nested_modules() {} Nov 17 12:09:42.846 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^ Nov 17 12:09:42.846 INFO [stderr] Nov 17 12:09:42.846 INFO [stderr] warning: function is never used: `read_username_from_file` Nov 17 12:09:42.846 INFO [stderr] --> src/ch9_error.rs:44:1 Nov 17 12:09:42.846 INFO [stderr] | Nov 17 12:09:42.846 INFO [stderr] 44 | fn read_username_from_file() -> Result { Nov 17 12:09:42.846 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 17 12:09:42.846 INFO [stderr] Nov 17 12:09:42.846 INFO [stderr] warning: function is never used: `read_username_from_file2` Nov 17 12:09:42.846 INFO [stderr] --> src/ch9_error.rs:60:1 Nov 17 12:09:42.846 INFO [stderr] | Nov 17 12:09:42.846 INFO [stderr] 60 | fn read_username_from_file2() -> Result { Nov 17 12:09:42.846 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 17 12:09:42.846 INFO [stderr] Nov 17 12:09:42.846 INFO [stderr] warning: function is never used: `read_username_from_file3` Nov 17 12:09:42.846 INFO [stderr] --> src/ch9_error.rs:67:1 Nov 17 12:09:42.846 INFO [stderr] | Nov 17 12:09:42.846 INFO [stderr] 67 | fn read_username_from_file3() -> Result { Nov 17 12:09:42.846 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 17 12:09:42.846 INFO [stderr] Nov 17 12:09:42.846 INFO [stderr] warning: function is never used: `longest_with_an_announcement` Nov 17 12:09:42.846 INFO [stderr] --> src/ch10_generic_trait_lifetime.rs:83:1 Nov 17 12:09:42.846 INFO [stderr] | Nov 17 12:09:42.846 INFO [stderr] 83 | / fn longest_with_an_announcement<'a, T>(x: &'a str, y: &'a str, ann: T) -> &'a str Nov 17 12:09:42.846 INFO [stderr] 84 | | where T: Display Nov 17 12:09:42.846 INFO [stderr] 85 | | { Nov 17 12:09:42.846 INFO [stderr] 86 | | println!("Announcement! {}", ann); Nov 17 12:09:42.846 INFO [stderr] ... | Nov 17 12:09:42.846 INFO [stderr] 91 | | } Nov 17 12:09:42.846 INFO [stderr] 92 | | } Nov 17 12:09:42.846 INFO [stderr] | |_^ Nov 17 12:09:42.846 INFO [stderr] Nov 17 12:09:42.846 INFO [stderr] warning: field is never used: `part` Nov 17 12:09:42.846 INFO [stderr] --> src/ch10_generic_trait_lifetime.rs:95:5 Nov 17 12:09:42.846 INFO [stderr] | Nov 17 12:09:42.847 INFO [stderr] 95 | part: &'a str, Nov 17 12:09:42.847 INFO [stderr] | ^^^^^^^^^^^^^ Nov 17 12:09:42.847 INFO [stderr] Nov 17 12:09:42.847 INFO [stderr] warning: method is never used: `level` Nov 17 12:09:42.847 INFO [stderr] --> src/ch10_generic_trait_lifetime.rs:99:5 Nov 17 12:09:42.847 INFO [stderr] | Nov 17 12:09:42.847 INFO [stderr] 99 | fn level(&self) -> i32 { Nov 17 12:09:42.847 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^ Nov 17 12:09:42.847 INFO [stderr] Nov 17 12:09:42.847 INFO [stderr] warning: method is never used: `announce_and_return_part` Nov 17 12:09:42.847 INFO [stderr] --> src/ch10_generic_trait_lifetime.rs:103:5 Nov 17 12:09:42.847 INFO [stderr] | Nov 17 12:09:42.847 INFO [stderr] 103 | fn announce_and_return_part(&self, announcement: &str) -> &str { Nov 17 12:09:42.847 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 17 12:09:42.847 INFO [stderr] Nov 17 12:09:42.847 INFO [stderr] warning: function is never used: `notify` Nov 17 12:09:42.847 INFO [stderr] --> src/ch10_generic_trait_lifetime.rs:109:1 Nov 17 12:09:42.847 INFO [stderr] | Nov 17 12:09:42.847 INFO [stderr] 109 | fn notify(item: T) { Nov 17 12:09:42.847 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 17 12:09:42.847 INFO [stderr] Nov 17 12:09:42.847 INFO [stderr] warning: function is never used: `some_function` Nov 17 12:09:42.847 INFO [stderr] --> src/ch10_generic_trait_lifetime.rs:113:1 Nov 17 12:09:42.847 INFO [stderr] | Nov 17 12:09:42.847 INFO [stderr] 113 | fn some_function(t: T, u: U) -> i32 { Nov 17 12:09:42.847 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 17 12:09:42.847 INFO [stderr] Nov 17 12:09:42.847 INFO [stderr] warning: function is never used: `some_function2` Nov 17 12:09:42.847 INFO [stderr] --> src/ch10_generic_trait_lifetime.rs:117:1 Nov 17 12:09:42.847 INFO [stderr] | Nov 17 12:09:42.847 INFO [stderr] 117 | / fn some_function2(t: T, u: U) -> i32 Nov 17 12:09:42.847 INFO [stderr] 118 | | where T: Display + Clone, Nov 17 12:09:42.847 INFO [stderr] 119 | | U: Clone + Display { Nov 17 12:09:42.847 INFO [stderr] 120 | | 1 Nov 17 12:09:42.847 INFO [stderr] 121 | | } Nov 17 12:09:42.847 INFO [stderr] | |_^ Nov 17 12:09:42.847 INFO [stderr] Nov 17 12:09:42.847 INFO [stderr] warning: struct is never constructed: `Point` Nov 17 12:09:42.847 INFO [stderr] --> src/ch10_generic_trait_lifetime.rs:147:1 Nov 17 12:09:42.847 INFO [stderr] | Nov 17 12:09:42.847 INFO [stderr] 147 | struct Point { Nov 17 12:09:42.847 INFO [stderr] | ^^^^^^^^^^^^^^^ Nov 17 12:09:42.847 INFO [stderr] Nov 17 12:09:42.847 INFO [stderr] warning: method is never used: `x` Nov 17 12:09:42.847 INFO [stderr] --> src/ch10_generic_trait_lifetime.rs:153:5 Nov 17 12:09:42.847 INFO [stderr] | Nov 17 12:09:42.847 INFO [stderr] 153 | fn x(&self) -> &T { Nov 17 12:09:42.847 INFO [stderr] | ^^^^^^^^^^^^^^^^^ Nov 17 12:09:42.847 INFO [stderr] Nov 17 12:09:42.851 INFO [stderr] warning: struct is never constructed: `Point2` Nov 17 12:09:42.851 INFO [stderr] --> src/ch10_generic_trait_lifetime.rs:158:1 Nov 17 12:09:42.851 INFO [stderr] | Nov 17 12:09:42.851 INFO [stderr] 158 | struct Point2 { Nov 17 12:09:42.851 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^ Nov 17 12:09:42.851 INFO [stderr] Nov 17 12:09:42.851 INFO [stderr] warning: method is never used: `mixup` Nov 17 12:09:42.851 INFO [stderr] --> src/ch10_generic_trait_lifetime.rs:164:5 Nov 17 12:09:42.851 INFO [stderr] | Nov 17 12:09:42.851 INFO [stderr] 164 | fn mixup(self, other: Point2) -> Point2 { Nov 17 12:09:42.851 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 17 12:09:42.851 INFO [stderr] Nov 17 12:09:42.851 INFO [stderr] warning: enum is never used: `Option` Nov 17 12:09:42.851 INFO [stderr] --> src/ch10_generic_trait_lifetime.rs:172:1 Nov 17 12:09:42.851 INFO [stderr] | Nov 17 12:09:42.851 INFO [stderr] 172 | enum Option { Nov 17 12:09:42.851 INFO [stderr] | ^^^^^^^^^^^^^^ Nov 17 12:09:42.851 INFO [stderr] Nov 17 12:09:42.851 INFO [stderr] warning: struct is never constructed: `NewsArticle` Nov 17 12:09:42.851 INFO [stderr] --> src/ch10_generic_trait_lifetime.rs:185:1 Nov 17 12:09:42.851 INFO [stderr] | Nov 17 12:09:42.851 INFO [stderr] 185 | struct NewsArticle { Nov 17 12:09:42.851 INFO [stderr] | ^^^^^^^^^^^^^^^^^^ Nov 17 12:09:42.851 INFO [stderr] Nov 17 12:09:42.851 INFO [stderr] warning: field is never used: `value` Nov 17 12:09:42.851 INFO [stderr] --> src/ch11_test.rs:25:5 Nov 17 12:09:42.851 INFO [stderr] | Nov 17 12:09:42.851 INFO [stderr] 25 | value: u32, Nov 17 12:09:42.851 INFO [stderr] | ^^^^^^^^^^ Nov 17 12:09:42.851 INFO [stderr] Nov 17 12:09:42.851 INFO [stderr] warning: field is never used: `artist` Nov 17 12:09:42.851 INFO [stderr] --> src/ch15_smart_pointers/ch15_1_box.rs:26:5 Nov 17 12:09:42.851 INFO [stderr] | Nov 17 12:09:42.851 INFO [stderr] 26 | artist: Option, Nov 17 12:09:42.851 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^ Nov 17 12:09:42.851 INFO [stderr] Nov 17 12:09:42.851 INFO [stderr] warning: field is never used: `title` Nov 17 12:09:42.851 INFO [stderr] --> src/ch15_smart_pointers/ch15_1_box.rs:27:5 Nov 17 12:09:42.851 INFO [stderr] | Nov 17 12:09:42.851 INFO [stderr] 27 | title: Option, Nov 17 12:09:42.851 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^ Nov 17 12:09:42.851 INFO [stderr] Nov 17 12:09:42.851 INFO [stderr] warning: field is never used: `data` Nov 17 12:09:42.851 INFO [stderr] --> src/ch15_smart_pointers/ch15_1_box.rs:73:5 Nov 17 12:09:42.851 INFO [stderr] | Nov 17 12:09:42.851 INFO [stderr] 73 | data: String, Nov 17 12:09:42.851 INFO [stderr] | ^^^^^^^^^^^^ Nov 17 12:09:42.851 INFO [stderr] Nov 17 12:09:42.851 INFO [stderr] warning: struct is never constructed: `AveragedCollection` Nov 17 12:09:42.851 INFO [stderr] --> src/ch17_oop/mod.rs:2:1 Nov 17 12:09:42.851 INFO [stderr] | Nov 17 12:09:42.851 INFO [stderr] 2 | pub struct AveragedCollection { Nov 17 12:09:42.851 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 17 12:09:42.851 INFO [stderr] Nov 17 12:09:42.851 INFO [stderr] warning: method is never used: `add` Nov 17 12:09:42.851 INFO [stderr] --> src/ch17_oop/mod.rs:8:5 Nov 17 12:09:42.851 INFO [stderr] | Nov 17 12:09:42.851 INFO [stderr] 8 | pub fn add(&mut self, value: i32) { Nov 17 12:09:42.851 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 17 12:09:42.851 INFO [stderr] Nov 17 12:09:42.851 INFO [stderr] warning: method is never used: `remove` Nov 17 12:09:42.851 INFO [stderr] --> src/ch17_oop/mod.rs:13:5 Nov 17 12:09:42.851 INFO [stderr] | Nov 17 12:09:42.851 INFO [stderr] 13 | pub fn remove(&mut self) -> Option { Nov 17 12:09:42.851 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 17 12:09:42.851 INFO [stderr] Nov 17 12:09:42.851 INFO [stderr] warning: method is never used: `average` Nov 17 12:09:42.851 INFO [stderr] --> src/ch17_oop/mod.rs:24:5 Nov 17 12:09:42.851 INFO [stderr] | Nov 17 12:09:42.852 INFO [stderr] 24 | pub fn average(&self) -> f64 { Nov 17 12:09:42.852 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 17 12:09:42.852 INFO [stderr] Nov 17 12:09:42.852 INFO [stderr] warning: method is never used: `update_average` Nov 17 12:09:42.852 INFO [stderr] --> src/ch17_oop/mod.rs:28:5 Nov 17 12:09:42.852 INFO [stderr] | Nov 17 12:09:42.852 INFO [stderr] 28 | fn update_average(&mut self) { Nov 17 12:09:42.852 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 17 12:09:42.852 INFO [stderr] Nov 17 12:09:42.852 INFO [stderr] warning: method is never used: `reject` Nov 17 12:09:42.852 INFO [stderr] --> src/ch17_oop/encoding_states_as_type.rs:81:5 Nov 17 12:09:42.852 INFO [stderr] | Nov 17 12:09:42.852 INFO [stderr] 81 | fn reject(self) -> DraftPost { Nov 17 12:09:42.852 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 17 12:09:42.852 INFO [stderr] Nov 17 12:09:42.852 INFO [stderr] warning: function is never used: `foo` Nov 17 12:09:42.852 INFO [stderr] --> src/ch18_pattern_match.rs:245:1 Nov 17 12:09:42.852 INFO [stderr] | Nov 17 12:09:42.852 INFO [stderr] 245 | fn foo(x: i32) { Nov 17 12:09:42.852 INFO [stderr] | ^^^^^^^^^^^^^^ Nov 17 12:09:42.852 INFO [stderr] Nov 17 12:09:42.852 INFO [stderr] warning: struct is never constructed: `Context` Nov 17 12:09:42.852 INFO [stderr] --> src/ch19_advanced_feature/ch19_2_advanced_lifetime.rs:2:1 Nov 17 12:09:42.852 INFO [stderr] | Nov 17 12:09:42.852 INFO [stderr] 2 | struct Context<'s>(&'s str); Nov 17 12:09:42.852 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 17 12:09:42.852 INFO [stderr] Nov 17 12:09:42.852 INFO [stderr] warning: struct is never constructed: `Parser` Nov 17 12:09:42.852 INFO [stderr] --> src/ch19_advanced_feature/ch19_2_advanced_lifetime.rs:4:1 Nov 17 12:09:42.852 INFO [stderr] | Nov 17 12:09:42.852 INFO [stderr] 4 | struct Parser<'c, 's: 'c> { Nov 17 12:09:42.852 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 17 12:09:42.852 INFO [stderr] Nov 17 12:09:42.852 INFO [stderr] warning: method is never used: `parse` Nov 17 12:09:42.852 INFO [stderr] --> src/ch19_advanced_feature/ch19_2_advanced_lifetime.rs:9:5 Nov 17 12:09:42.852 INFO [stderr] | Nov 17 12:09:42.852 INFO [stderr] 9 | fn parse(&self) -> Result<(), &'s str> { Nov 17 12:09:42.852 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 17 12:09:42.852 INFO [stderr] Nov 17 12:09:42.852 INFO [stderr] warning: function is never used: `parse_context` Nov 17 12:09:42.852 INFO [stderr] --> src/ch19_advanced_feature/ch19_2_advanced_lifetime.rs:14:1 Nov 17 12:09:42.852 INFO [stderr] | Nov 17 12:09:42.852 INFO [stderr] 14 | fn parse_context(context: Context) -> Result<(), &str> { Nov 17 12:09:42.852 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 17 12:09:42.852 INFO [stderr] Nov 17 12:09:42.852 INFO [stderr] warning: struct is never constructed: `Ref` Nov 17 12:09:42.852 INFO [stderr] --> src/ch19_advanced_feature/ch19_2_advanced_lifetime.rs:19:1 Nov 17 12:09:42.852 INFO [stderr] | Nov 17 12:09:42.852 INFO [stderr] 19 | struct Ref<'a, T: 'a>(&'a T); Nov 17 12:09:42.852 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 17 12:09:42.852 INFO [stderr] Nov 17 12:09:42.852 INFO [stderr] warning: field is never used: `x` Nov 17 12:09:42.852 INFO [stderr] --> src/ch19_advanced_feature/ch19_2_advanced_lifetime.rs:25:5 Nov 17 12:09:42.852 INFO [stderr] | Nov 17 12:09:42.852 INFO [stderr] 25 | x: &'a i32, Nov 17 12:09:42.852 INFO [stderr] | ^^^^^^^^^^ Nov 17 12:09:42.852 INFO [stderr] Nov 17 12:09:42.852 INFO [stderr] warning: function is never used: `gDistance` Nov 17 12:09:42.852 INFO [stderr] --> src/ch19_advanced_feature/ch19_3_advanced_traits.rs:19:1 Nov 17 12:09:42.852 INFO [stderr] | Nov 17 12:09:42.852 INFO [stderr] 19 | fn gDistance>(graph: &G, start: &N, end: &N) -> u32 { 1 } Nov 17 12:09:42.852 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 17 12:09:42.852 INFO [stderr] Nov 17 12:09:42.852 INFO [stderr] warning: function is never used: `aDistance` Nov 17 12:09:42.852 INFO [stderr] --> src/ch19_advanced_feature/ch19_3_advanced_traits.rs:28:1 Nov 17 12:09:42.852 INFO [stderr] | Nov 17 12:09:42.852 INFO [stderr] 28 | fn aDistance(graph: &G, start: &G::Node, end: &G::Node) -> u32 { Nov 17 12:09:42.852 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 17 12:09:42.852 INFO [stderr] Nov 17 12:09:42.852 INFO [stderr] warning: function is never used: `distance` Nov 17 12:09:42.852 INFO [stderr] --> src/ch19_advanced_feature/ch19_3_advanced_traits.rs:33:1 Nov 17 12:09:42.852 INFO [stderr] | Nov 17 12:09:42.852 INFO [stderr] 33 | fn distance(graph: &GGraph, start: &N, end: &N) -> u32 { 1 } Nov 17 12:09:42.852 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 17 12:09:42.852 INFO [stderr] Nov 17 12:09:42.852 INFO [stderr] warning: function is never used: `traverse` Nov 17 12:09:42.852 INFO [stderr] --> src/ch19_advanced_feature/ch19_3_advanced_traits.rs:35:1 Nov 17 12:09:42.852 INFO [stderr] | Nov 17 12:09:42.852 INFO [stderr] 35 | fn traverse(graph: &AGraph) {} Nov 17 12:09:42.852 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 17 12:09:42.852 INFO [stderr] Nov 17 12:09:42.853 INFO [stderr] warning: struct is never constructed: `Wrapper` Nov 17 12:09:42.853 INFO [stderr] --> src/ch19_advanced_feature/ch19_3_advanced_traits.rs:139:1 Nov 17 12:09:42.853 INFO [stderr] | Nov 17 12:09:42.853 INFO [stderr] 139 | struct Wrapper(Vec); Nov 17 12:09:42.853 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 17 12:09:42.853 INFO [stderr] Nov 17 12:09:42.853 INFO [stderr] warning: type alias is never used: `Kilometers` Nov 17 12:09:42.853 INFO [stderr] --> src/ch19_advanced_feature/ch19_4_advanced_types.rs:1:1 Nov 17 12:09:42.853 INFO [stderr] | Nov 17 12:09:42.853 INFO [stderr] 1 | type Kilometers = i32; Nov 17 12:09:42.853 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^ Nov 17 12:09:42.853 INFO [stderr] Nov 17 12:09:42.853 INFO [stderr] warning: type alias is never used: `Thunk` Nov 17 12:09:42.853 INFO [stderr] --> src/ch19_advanced_feature/ch19_4_advanced_types.rs:2:1 Nov 17 12:09:42.853 INFO [stderr] | Nov 17 12:09:42.853 INFO [stderr] 2 | type Thunk = Box; Nov 17 12:09:42.853 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 17 12:09:42.853 INFO [stderr] Nov 17 12:09:42.853 INFO [stderr] warning: function is never used: `bar` Nov 17 12:09:42.853 INFO [stderr] --> src/ch19_advanced_feature/ch19_4_advanced_types.rs:9:1 Nov 17 12:09:42.853 INFO [stderr] | Nov 17 12:09:42.853 INFO [stderr] 9 | fn bar() -> ! { Nov 17 12:09:42.853 INFO [stderr] | ^^^^^^^^^^^^^ Nov 17 12:09:42.853 INFO [stderr] Nov 17 12:09:42.853 INFO [stderr] warning: function is never used: `generic` Nov 17 12:09:42.853 INFO [stderr] --> src/ch19_advanced_feature/ch19_4_advanced_types.rs:18:1 Nov 17 12:09:42.853 INFO [stderr] | Nov 17 12:09:42.853 INFO [stderr] 18 | fn generic(t: T){} Nov 17 12:09:42.853 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^ Nov 17 12:09:42.853 INFO [stderr] Nov 17 12:09:42.853 INFO [stderr] warning: function is never used: `generic2` Nov 17 12:09:42.853 INFO [stderr] --> src/ch19_advanced_feature/ch19_4_advanced_types.rs:19:1 Nov 17 12:09:42.853 INFO [stderr] | Nov 17 12:09:42.853 INFO [stderr] 19 | fn generic2(t: T) {} Nov 17 12:09:42.853 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 17 12:09:42.853 INFO [stderr] Nov 17 12:09:42.853 INFO [stderr] warning: function is never used: `generic3` Nov 17 12:09:42.853 INFO [stderr] --> src/ch19_advanced_feature/ch19_4_advanced_types.rs:20:1 Nov 17 12:09:42.853 INFO [stderr] | Nov 17 12:09:42.853 INFO [stderr] 20 | fn generic3(t: &T) {} Nov 17 12:09:42.853 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 17 12:09:42.853 INFO [stderr] Nov 17 12:09:42.853 INFO [stderr] warning: function is never used: `returns_closure` Nov 17 12:09:42.853 INFO [stderr] --> src/ch19_advanced_feature/ch19_5_advanced_func_closures.rs:25:1 Nov 17 12:09:42.853 INFO [stderr] | Nov 17 12:09:42.853 INFO [stderr] 25 | fn returns_closure() -> Box i32> { Nov 17 12:09:42.853 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 17 12:09:42.853 INFO [stderr] Nov 17 12:09:42.860 INFO [stderr] warning: unused `std::result::Result` that must be used Nov 17 12:09:42.860 INFO [stderr] --> src/ch16_concurrency/ch16_1_threads.rs:15:5 Nov 17 12:09:42.860 INFO [stderr] | Nov 17 12:09:42.860 INFO [stderr] 15 | handle.join(); Nov 17 12:09:42.860 INFO [stderr] | ^^^^^^^^^^^^^^ Nov 17 12:09:42.860 INFO [stderr] | Nov 17 12:09:42.860 INFO [stderr] = note: #[warn(unused_must_use)] on by default Nov 17 12:09:42.860 INFO [stderr] = note: this `Result` may be an `Err` variant, which should be handled Nov 17 12:09:42.860 INFO [stderr] Nov 17 12:09:42.860 INFO [stderr] warning: unused `std::result::Result` that must be used Nov 17 12:09:42.860 INFO [stderr] --> src/ch16_concurrency/ch16_1_threads.rs:25:5 Nov 17 12:09:42.860 INFO [stderr] | Nov 17 12:09:42.860 INFO [stderr] 25 | handle.join(); Nov 17 12:09:42.860 INFO [stderr] | ^^^^^^^^^^^^^^ Nov 17 12:09:42.860 INFO [stderr] | Nov 17 12:09:42.860 INFO [stderr] = note: this `Result` may be an `Err` variant, which should be handled Nov 17 12:09:42.860 INFO [stderr] Nov 17 12:09:42.866 INFO [stderr] warning: function `gDistance` should have a snake case name such as `g_distance` Nov 17 12:09:42.866 INFO [stderr] --> src/ch19_advanced_feature/ch19_3_advanced_traits.rs:19:1 Nov 17 12:09:42.866 INFO [stderr] | Nov 17 12:09:42.866 INFO [stderr] 19 | fn gDistance>(graph: &G, start: &N, end: &N) -> u32 { 1 } Nov 17 12:09:42.866 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 17 12:09:42.866 INFO [stderr] | Nov 17 12:09:42.866 INFO [stderr] = note: #[warn(non_snake_case)] on by default Nov 17 12:09:42.866 INFO [stderr] Nov 17 12:09:42.867 INFO [stderr] warning: function `aDistance` should have a snake case name such as `a_distance` Nov 17 12:09:42.867 INFO [stderr] --> src/ch19_advanced_feature/ch19_3_advanced_traits.rs:28:1 Nov 17 12:09:42.867 INFO [stderr] | Nov 17 12:09:42.867 INFO [stderr] 28 | / fn aDistance(graph: &G, start: &G::Node, end: &G::Node) -> u32 { Nov 17 12:09:42.867 INFO [stderr] 29 | | 1 Nov 17 12:09:42.867 INFO [stderr] 30 | | } Nov 17 12:09:42.867 INFO [stderr] | |_^ Nov 17 12:09:42.867 INFO [stderr] Nov 17 12:09:44.642 INFO [stderr] Finished dev [unoptimized + debuginfo] target(s) in 3.19s Nov 17 12:09:44.645 INFO [stderr] su: No module specific data is present Nov 17 12:09:44.873 INFO running `"docker" "inspect" "64f338608dc2c8f93b61a2786a7b1028191c85763943f6e92a5093cc28ef7eeb"` Nov 17 12:09:44.935 INFO running `"docker" "rm" "-f" "64f338608dc2c8f93b61a2786a7b1028191c85763943f6e92a5093cc28ef7eeb"` Nov 17 12:09:45.012 INFO [stdout] 64f338608dc2c8f93b61a2786a7b1028191c85763943f6e92a5093cc28ef7eeb Nov 17 12:09:45.014 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55982/worker-1/master#6b9b97bd9b704f85f0184f7a213cc4d62bd9654c:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/pr-55982/master#6b9b97bd9b704f85f0184f7a213cc4d62bd9654c:/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 +6b9b97bd9b704f85f0184f7a213cc4d62bd9654c-alt test --frozen" "-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 17 12:09:45.202 INFO [stdout] 3b8df6debed2b8a0ed38e0c8a4c997cc41b3561494439e4b3e793ba44427a5c3 Nov 17 12:09:45.205 INFO running `"docker" "start" "-a" "3b8df6debed2b8a0ed38e0c8a4c997cc41b3561494439e4b3e793ba44427a5c3"` Nov 17 12:09:45.655 INFO [stderr] usermod: no changes Nov 17 12:09:45.684 INFO [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.01s Nov 17 12:09:45.684 INFO [stderr] Running /target/debug/deps/learn_rust-0427a0845b4f4493 Nov 17 12:09:45.688 INFO [stdout] Nov 17 12:09:45.688 INFO [stdout] running 49 tests Nov 17 12:09:45.688 INFO [stdout] test ch10_generic_trait_lifetime::generic_test ... ok Nov 17 12:09:45.688 INFO [stdout] test ch10_generic_trait_lifetime::trait_test ... ok Nov 17 12:09:45.689 INFO [stdout] test ch11_test::it_adds_two ... ok Nov 17 12:09:45.689 INFO [stdout] test ch11_test::larger_can_hold_smaller ... ok Nov 17 12:09:45.689 INFO [stdout] test ch13_fp::call_with_different_values ... ok Nov 17 12:09:45.689 INFO [stdout] test ch14_cargo_crates::test_normal_use ... ok Nov 17 12:09:45.689 INFO [stdout] test ch14_cargo_crates::test_pub_use ... ok Nov 17 12:09:45.689 INFO [stdout] test ch13_fp::iterators_test ... ok Nov 17 12:09:45.689 INFO [stdout] test ch15_smart_pointers::ch15_1_box::test_box ... ok Nov 17 12:09:45.689 INFO [stdout] test ch10_generic_trait_lifetime::lifetime_test ... ok Nov 17 12:09:45.689 INFO [stdout] test ch15_smart_pointers::ch15_1_box::test_cons ... ok Nov 17 12:09:45.689 INFO [stdout] test ch15_smart_pointers::ch15_1_box::test_deref ... ok Nov 17 12:09:45.689 INFO [stdout] test ch15_smart_pointers::ch15_1_box::test_drop ... ok Nov 17 12:09:45.690 INFO [stdout] test ch15_smart_pointers::ch15_4_rc::test_rc ... ok Nov 17 12:09:45.690 INFO [stdout] test ch15_smart_pointers::ch15_5_ref_cell::test_rc_refcell ... ok Nov 17 12:09:45.690 INFO [stdout] test ch15_smart_pointers::ch15_6_ref_cycle::test_weak ... ok Nov 17 12:09:45.690 INFO [stdout] test ch15_smart_pointers::ch15_6_ref_cycle::test_circle_ref ... ok Nov 17 12:09:45.690 INFO [stdout] test ch15_smart_pointers::ch15_5_ref_cell::test_refcell ... ok Nov 17 12:09:45.691 INFO [stdout] test ch16_concurrency::ch16_3_shared_state::test_mutex ... ok Nov 17 12:09:45.691 INFO [stdout] Here's a vector: [1, 2, 3] Nov 17 12:09:45.691 INFO [stdout] test ch16_concurrency::ch16_3_shared_state::test_mutex_rc ... ok Nov 17 12:09:45.695 INFO [stdout] hi number 1 from the spawned thread! Nov 17 12:09:45.695 INFO [stdout] hi number 2 from the spawned thread! Nov 17 12:09:45.695 INFO [stdout] hi number 3 from the spawned thread! Nov 17 12:09:45.695 INFO [stdout] hi number 4 from the spawned thread! Nov 17 12:09:45.695 INFO [stdout] hi number 5 from the spawned thread! Nov 17 12:09:45.695 INFO [stdout] hi number 6 from the spawned thread! Nov 17 12:09:45.695 INFO [stdout] hi number 7 from the spawned thread! Nov 17 12:09:45.695 INFO [stdout] hi number 8 from the spawned thread! Nov 17 12:09:45.695 INFO [stdout] hi number 9 from the spawned thread! Nov 17 12:09:45.697 INFO [stdout] test ch16_concurrency::ch16_3_shared_state::test_mutex_api ... ok Nov 17 12:09:45.697 INFO [stdout] test ch16_concurrency::ch16_1_threads::test_move_closures ... ok Nov 17 12:09:45.703 INFO [stdout] test ch16_concurrency::ch16_1_threads::test_thread ... ok Nov 17 12:09:45.703 INFO [stdout] test ch17_oop::test_rust_gui ... ok Nov 17 12:09:45.703 INFO [stdout] test ch17_oop::encoding_states_as_type::test_main ... ok Nov 17 12:09:45.703 INFO [stdout] test ch18_pattern_match::places_patterns_may_use ... ok Nov 17 12:09:45.704 INFO [stdout] test ch19_advanced_feature::ch19_1_unsafe::create_safe_abstraction ... ok Nov 17 12:09:45.704 INFO [stdout] test ch19_advanced_feature::ch19_1_unsafe::test_static_var ... ok Nov 17 12:09:45.704 INFO [stdout] test ch19_advanced_feature::ch19_1_unsafe::test_raw_pointer ... ok Nov 17 12:09:45.704 INFO [stdout] test ch19_advanced_feature::ch19_3_advanced_traits::fully_qualified_syntax ... ok Nov 17 12:09:45.704 INFO [stdout] test ch19_advanced_feature::ch19_1_unsafe::test_unsafe_func ... ok Nov 17 12:09:45.704 INFO [stdout] test ch19_advanced_feature::ch19_3_advanced_traits::operator_overloading ... ok Nov 17 12:09:45.704 INFO [stdout] test ch19_advanced_feature::ch19_5_advanced_func_closures::func_pointer ... ok Nov 17 12:09:45.707 INFO [stdout] test ch19_advanced_feature::ch19_2_advanced_lifetime::trait_object_lifetime ... ok Nov 17 12:09:45.707 INFO [stdout] test ch4_ownership::main ... ok Nov 17 12:09:45.707 INFO [stdout] test ch6_enums::main ... ok Nov 17 12:09:45.709 INFO [stdout] test ch5_rectangle::main ... ok Nov 17 12:09:45.709 INFO [stdout] test ch17_oop::test_state_pattern ... ok Nov 17 12:09:45.709 INFO [stdout] test ch16_concurrency::ch16_3_shared_state::test_mutex_arc ... ok Nov 17 12:09:45.709 INFO [stdout] test ch5_structs::main ... ok Nov 17 12:09:45.709 INFO [stdout] test ch8_collections::vector ... ok Nov 17 12:09:45.709 INFO [stdout] test tests::internal ... ok Nov 17 12:09:45.709 INFO [stdout] test ch9_error::result ... ok Nov 17 12:09:45.716 INFO [stdout] test ch8_collections::string ... ok Nov 17 12:09:45.716 INFO [stdout] test ch8_collections::hash_maps ... ok Nov 17 12:09:45.744 INFO [stdout] test ch11_test::greater_than_100 ... ok Nov 17 12:09:45.752 INFO [stdout] test ch9_error::panic ... ok Nov 17 12:09:47.694 INFO [stdout] test ch13_fp::closure_test ... ok Nov 17 12:09:49.703 INFO [stdout] test ch16_concurrency::ch16_2_message_passing::test_channel ... ok Nov 17 12:09:49.703 INFO [stderr] Running /target/debug/deps/integration_test-cb4a8a337daa0ff2 Nov 17 12:09:49.703 INFO [stdout] Nov 17 12:09:49.703 INFO [stdout] test result: ok. 49 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out Nov 17 12:09:49.703 INFO [stdout] Nov 17 12:09:49.715 INFO [stdout] Nov 17 12:09:49.715 INFO [stdout] running 1 test Nov 17 12:09:49.715 INFO [stdout] test it_adds_two ... ok Nov 17 12:09:49.715 INFO [stdout] Nov 17 12:09:49.715 INFO [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out Nov 17 12:09:49.715 INFO [stdout] Nov 17 12:09:49.715 INFO [stderr] Doc-tests learn-rust Nov 17 12:09:50.301 INFO [stdout] Nov 17 12:09:50.301 INFO [stdout] running 1 test Nov 17 12:09:51.119 INFO [stdout] test src/ch14_cargo_crates.rs - ch14_cargo_crates::add_one (line 5) ... ok Nov 17 12:09:51.119 INFO [stdout] Nov 17 12:09:51.119 INFO [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out Nov 17 12:09:51.120 INFO [stdout] Nov 17 12:09:51.123 INFO [stderr] su: No module specific data is present Nov 17 12:09:51.903 INFO running `"docker" "inspect" "3b8df6debed2b8a0ed38e0c8a4c997cc41b3561494439e4b3e793ba44427a5c3"` Nov 17 12:09:52.193 INFO running `"docker" "rm" "-f" "3b8df6debed2b8a0ed38e0c8a4c997cc41b3561494439e4b3e793ba44427a5c3"` Nov 17 12:09:52.531 INFO [stdout] 3b8df6debed2b8a0ed38e0c8a4c997cc41b3561494439e4b3e793ba44427a5c3