[INFO] cloning repository https://github.com/ifabrisarabellapark/rust101 [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ifabrisarabellapark/rust101" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fifabrisarabellapark%2Frust101", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fifabrisarabellapark%2Frust101'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] ea93104e479edb6a090dd2a6a4b88f396d610945 [INFO] testing ifabrisarabellapark/rust101 against 1.60.0 for beta-1.61-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fifabrisarabellapark%2Frust101" "/workspace/builds/worker-8/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'... 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[INFO] validating manifest of git repo https://github.com/ifabrisarabellapark/rust101 on toolchain 1.60.0 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/ifabrisarabellapark/rust101 [INFO] finished tweaking git repo https://github.com/ifabrisarabellapark/rust101 [INFO] tweaked toml for git repo https://github.com/ifabrisarabellapark/rust101 written to /workspace/builds/worker-8/source/Cargo.toml [INFO] crate git repo https://github.com/ifabrisarabellapark/rust101 already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 709bb853bc23bb78ec3b7fb7340b60746664183297b0794837ef0c5bb8ddedd3 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "709bb853bc23bb78ec3b7fb7340b60746664183297b0794837ef0c5bb8ddedd3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "709bb853bc23bb78ec3b7fb7340b60746664183297b0794837ef0c5bb8ddedd3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "709bb853bc23bb78ec3b7fb7340b60746664183297b0794837ef0c5bb8ddedd3", kill_on_drop: false }` [INFO] [stdout] 709bb853bc23bb78ec3b7fb7340b60746664183297b0794837ef0c5bb8ddedd3 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 95dc8f314a1f79a908c984872bd346ffd41f129b5c35a30b53af52d03503231b [INFO] running `Command { std: "docker" "start" "-a" "95dc8f314a1f79a908c984872bd346ffd41f129b5c35a30b53af52d03503231b", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.123 [INFO] [stderr] Compiling rand v0.4.6 [INFO] [stderr] Compiling rand v0.3.23 [INFO] [stderr] Compiling variables v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: variant `locked` should have an upper camel case name [INFO] [stdout] --> src/controlflow.rs:114:14 [INFO] [stdout] | [INFO] [stdout] 114 | enum State { locked, failed, unlocked} //enumerate the states the locker can be in as you first interact with it [INFO] [stdout] | ^^^^^^ help: convert the identifier to upper camel case: `Locked` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_camel_case_types)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant `failed` should have an upper camel case name [INFO] [stdout] --> src/controlflow.rs:114:22 [INFO] [stdout] | [INFO] [stdout] 114 | enum State { locked, failed, unlocked} //enumerate the states the locker can be in as you first interact with it [INFO] [stdout] | ^^^^^^ help: convert the identifier to upper camel case (notice the capitalization): `Failed` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant `unlocked` should have an upper camel case name [INFO] [stdout] --> src/controlflow.rs:114:30 [INFO] [stdout] | [INFO] [stdout] 114 | enum State { locked, failed, unlocked} //enumerate the states the locker can be in as you first interact with it [INFO] [stdout] | ^^^^^^^^ help: convert the identifier to upper camel case (notice the capitalization): `Unlocked` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant `rgbColor` should have an upper camel case name [INFO] [stdout] --> src/structures.rs:33:5 [INFO] [stdout] | [INFO] [stdout] 33 | rgbColor(u8,u8,u8), //tuple [INFO] [stdout] | ^^^^^^^^ help: convert the identifier to upper camel case: `RgbColor` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant `cmyk` should have an upper camel case name [INFO] [stdout] --> src/structures.rs:34:5 [INFO] [stdout] | [INFO] [stdout] 34 | cmyk{cyan:u8, magenta:u8, yellow:u8, black:u8} //struct [INFO] [stdout] | ^^^^ help: convert the identifier to upper camel case (notice the capitalization): `Cmyk` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: type `point` should have an upper camel case name [INFO] [stdout] --> src/structures.rs:206:8 [INFO] [stdout] | [INFO] [stdout] 206 | struct point {x:T, y:T} [INFO] [stdout] | ^^^^^ help: convert the identifier to upper camel case: `Point` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::thread` [INFO] [stdout] --> src/stdcollection.rs:9:5 [INFO] [stdout] | [INFO] [stdout] 9 | use std::thread; [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::time` [INFO] [stdout] --> src/stdcollection.rs:10:5 [INFO] [stdout] | [INFO] [stdout] 10 | use std::time; [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `Neg` [INFO] [stdout] --> src/traits.rs:8:32 [INFO] [stdout] | [INFO] [stdout] 8 | use std::ops::{Add, AddAssign, Neg}; // add 'addition' from the operation module for Rust [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::mem` [INFO] [stdout] --> src/main.rs:15:5 [INFO] [stdout] | [INFO] [stdout] 15 | use std::mem; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable pattern [INFO] [stdout] --> src/structures.rs:51:9 [INFO] [stdout] | [INFO] [stdout] 51 | _ => () //catch all that does absolutely nothing, but makes the match statement exhaustive [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unreachable_patterns)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `combo` [INFO] [stdout] --> src/controlflow.rs:118:9 [INFO] [stdout] | [INFO] [stdout] 118 | let combo = String::from("1234"); [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_combo` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `state` [INFO] [stdout] --> src/controlflow.rs:119:13 [INFO] [stdout] | [INFO] [stdout] 119 | let mut state = State::locked; [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_state` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `attempt` [INFO] [stdout] --> src/controlflow.rs:120:13 [INFO] [stdout] | [INFO] [stdout] 120 | let mut attempt = String::new(); [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_attempt` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `my_line` [INFO] [stdout] --> src/structures.rs:20:9 [INFO] [stdout] | [INFO] [stdout] 20 | let my_line = Line {start:p1, end:p2}; [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_my_line` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `c` [INFO] [stdout] --> src/structures.rs:193:11 [INFO] [stdout] | [INFO] [stdout] 193 | let ((c,d),(e,f)) = combo_tuple; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_c` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `d` [INFO] [stdout] --> src/structures.rs:193:13 [INFO] [stdout] | [INFO] [stdout] 193 | let ((c,d),(e,f)) = combo_tuple; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_d` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `e` [INFO] [stdout] --> src/structures.rs:193:17 [INFO] [stdout] | [INFO] [stdout] 193 | let ((c,d),(e,f)) = combo_tuple; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_e` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `f` [INFO] [stdout] --> src/structures.rs:193:19 [INFO] [stdout] | [INFO] [stdout] 193 | let ((c,d),(e,f)) = combo_tuple; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_f` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `myline` [INFO] [stdout] --> src/structures.rs:217:9 [INFO] [stdout] | [INFO] [stdout] 217 | let myline:Liny = Liny{start:b, end:c}; [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_myline` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `z` [INFO] [stdout] --> src/structures.rs:229:9 [INFO] [stdout] | [INFO] [stdout] 229 | z @ 6..=8 => "lots", // z @ gives a name to the range [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_z` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `x` [INFO] [stdout] --> src/structures.rs:247:10 [INFO] [stdout] | [INFO] [stdout] 247 | (x,0) => println!("lies on y-axix"), [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_x` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `y` [INFO] [stdout] --> src/structures.rs:248:12 [INFO] [stdout] | [INFO] [stdout] 248 | (0,y) => println!("lies on x-axis"), [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_y` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `yoda` [INFO] [stdout] --> src/string.rs:17:9 [INFO] [stdout] | [INFO] [stdout] 17 | let yoda = "I am Yoda"; // &str = string slice [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_yoda` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `x` is never read [INFO] [stdout] --> src/function.rs:121:32 [INFO] [stdout] | [INFO] [stdout] 121 | let plusone = |mut x: i32| x += 1; [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_assignments)]` on by default [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `x` [INFO] [stdout] --> src/function.rs:121:24 [INFO] [stdout] | [INFO] [stdout] 121 | let plusone = |mut x: i32| x += 1; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_x` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `man` [INFO] [stdout] --> src/traits.rs:49:9 [INFO] [stdout] | [INFO] [stdout] 49 | let man = Human::create("Leonard Euler"); [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_man` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `p` [INFO] [stdout] --> src/traits.rs:131:9 [INFO] [stdout] | [INFO] [stdout] 131 | let p = Person::new3(mathematician); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_p` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `dragon` [INFO] [stdout] --> src/traits.rs:161:13 [INFO] [stdout] | [INFO] [stdout] 161 | let mut dragon = Creature::new("Gigi"); [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_dragon` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `bol` [INFO] [stdout] --> src/lessonslearned.rs:43:9 [INFO] [stdout] | [INFO] [stdout] 43 | let bol:bool = true; [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_bol` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `e` [INFO] [stdout] --> src/lessonslearned.rs:48:13 [INFO] [stdout] | [INFO] [stdout] 48 | let mut e:u64 = 10000; //A mutable variable can be changed [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_e` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `e` [INFO] [stdout] --> src/lessonslearned.rs:50:9 [INFO] [stdout] | [INFO] [stdout] 50 | let e = true; //Variables can be overwritten by shadowing [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_e` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `remove` [INFO] [stdout] --> src/lessonslearned.rs:92:9 [INFO] [stdout] | [INFO] [stdout] 92 | let remove = set.remove(&3); // remove elements [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_remove` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/controlflow.rs:119:9 [INFO] [stdout] | [INFO] [stdout] 119 | let mut state = State::locked; [INFO] [stdout] | ----^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/controlflow.rs:120:9 [INFO] [stdout] | [INFO] [stdout] 120 | let mut attempt = String::new(); [INFO] [stdout] | ----^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/stdcollection.rs:178:9 [INFO] [stdout] | [INFO] [stdout] 178 | let mut vec2 = vec![5,6,7,8]; [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/string.rs:46:9 [INFO] [stdout] | [INFO] [stdout] 46 | let mut babyyoda = String::from("Baby Yoda"); [INFO] [stdout] | ----^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/string.rs:47:9 [INFO] [stdout] | [INFO] [stdout] 47 | let mut bb8 = "BB8".to_string(); [INFO] [stdout] | ----^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/string.rs:48:9 [INFO] [stdout] | [INFO] [stdout] 48 | let mut friends= String::from("are friends"); [INFO] [stdout] | ----^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/function.rs:108:9 [INFO] [stdout] | [INFO] [stdout] 108 | let mut add:i32 = 5; [INFO] [stdout] | ----^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/function.rs:122:9 [INFO] [stdout] | [INFO] [stdout] 122 | let mut c = 100; [INFO] [stdout] | ----^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/traits.rs:161:9 [INFO] [stdout] | [INFO] [stdout] 161 | let mut dragon = Creature::new("Gigi"); [INFO] [stdout] | ----^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/traits.rs:215:9 [INFO] [stdout] | [INFO] [stdout] 215 | let mut b = Complex::new(4.0,5.0); [INFO] [stdout] | ----^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/lessonslearned.rs:48:9 [INFO] [stdout] | [INFO] [stdout] 48 | let mut e:u64 = 10000; //A mutable variable can be changed [INFO] [stdout] | ----^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/lessonslearned.rs:69:9 [INFO] [stdout] | [INFO] [stdout] 69 | let mut myvec2:Vec = (20..=25).collect(); [INFO] [stdout] | ----^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct is never constructed: `Point` [INFO] [stdout] --> src/structures.rs:9:8 [INFO] [stdout] | [INFO] [stdout] 9 | struct Point {x:f64, y:f64, z:f64} [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct is never constructed: `Line` [INFO] [stdout] --> src/structures.rs:12:8 [INFO] [stdout] | [INFO] [stdout] 12 | struct Line{start:Point, end:Point} [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `structures` [INFO] [stdout] --> src/structures.rs:15:8 [INFO] [stdout] | [INFO] [stdout] 15 | pub fn structures() [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum is never used: `Color` [INFO] [stdout] --> src/structures.rs:29:6 [INFO] [stdout] | [INFO] [stdout] 29 | enum Color { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `enums` [INFO] [stdout] --> src/structures.rs:39:8 [INFO] [stdout] | [INFO] [stdout] 39 | pub fn enums() [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: union is never used: `IntOrFloat` [INFO] [stdout] --> src/structures.rs:62:7 [INFO] [stdout] | [INFO] [stdout] 62 | union IntOrFloat {i: i32, f: f32} // example of a 32bits union [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `unions` [INFO] [stdout] --> src/structures.rs:64:8 [INFO] [stdout] | [INFO] [stdout] 64 | pub fn unions() [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `options` [INFO] [stdout] --> src/structures.rs:75:8 [INFO] [stdout] | [INFO] [stdout] 75 | pub fn options() [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `array` [INFO] [stdout] --> src/structures.rs:95:8 [INFO] [stdout] | [INFO] [stdout] 95 | pub fn array() [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `use_slice` [INFO] [stdout] --> src/structures.rs:156:8 [INFO] [stdout] | [INFO] [stdout] 156 | pub fn use_slice(slice: &mut[i32]) [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `slices` [INFO] [stdout] --> src/structures.rs:162:8 [INFO] [stdout] | [INFO] [stdout] 162 | pub fn slices() [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `tuples` [INFO] [stdout] --> src/structures.rs:175:8 [INFO] [stdout] | [INFO] [stdout] 175 | pub fn tuples() [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct is never constructed: `point` [INFO] [stdout] --> src/structures.rs:206:8 [INFO] [stdout] | [INFO] [stdout] 206 | struct point {x:T, y:T} [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct is never constructed: `Pointy` [INFO] [stdout] --> src/structures.rs:207:8 [INFO] [stdout] | [INFO] [stdout] 207 | struct Pointy {x:T, y:V} [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct is never constructed: `Liny` [INFO] [stdout] --> src/structures.rs:208:8 [INFO] [stdout] | [INFO] [stdout] 208 | struct Liny {start: point, end:point} [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `generics` [INFO] [stdout] --> src/structures.rs:210:8 [INFO] [stdout] | [INFO] [stdout] 210 | pub fn generics() [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `how_many` [INFO] [stdout] --> src/structures.rs:222:4 [INFO] [stdout] | [INFO] [stdout] 222 | fn how_many(x:i8) -> &'static str [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `pattern_matching` [INFO] [stdout] --> src/structures.rs:236:8 [INFO] [stdout] | [INFO] [stdout] 236 | pub fn pattern_matching() [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `vectors` [INFO] [stdout] --> src/stdcollection.rs:17:8 [INFO] [stdout] | [INFO] [stdout] 17 | pub fn vectors() [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `hashmap` [INFO] [stdout] --> src/stdcollection.rs:63:8 [INFO] [stdout] | [INFO] [stdout] 63 | pub fn hashmap() [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `hashset` [INFO] [stdout] --> src/stdcollection.rs:92:8 [INFO] [stdout] | [INFO] [stdout] 92 | pub fn hashset() [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `iterators` [INFO] [stdout] --> src/stdcollection.rs:148:8 [INFO] [stdout] | [INFO] [stdout] 148 | pub fn iterators() [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `strings` [INFO] [stdout] --> src/string.rs:14:8 [INFO] [stdout] | [INFO] [stdout] 14 | pub fn strings() [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `double` [INFO] [stdout] --> src/function.rs:12:4 [INFO] [stdout] | [INFO] [stdout] 12 | fn double(int: &mut i32) { *int *= 2; println!("{}", int); } [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `product` [INFO] [stdout] --> src/function.rs:15:4 [INFO] [stdout] | [INFO] [stdout] 15 | fn product(x:i32, y:i32) -> i32 { x*y } [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `funk` [INFO] [stdout] --> src/function.rs:19:8 [INFO] [stdout] | [INFO] [stdout] 19 | pub fn funk() [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct is never constructed: `Point` [INFO] [stdout] --> src/function.rs:51:8 [INFO] [stdout] | [INFO] [stdout] 51 | struct Point {x:f32, y:f32} [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct is never constructed: `Line` [INFO] [stdout] --> src/function.rs:52:8 [INFO] [stdout] | [INFO] [stdout] 52 | struct Line {start:Point, end:Point} [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `eval_len` [INFO] [stdout] --> src/function.rs:58:8 [INFO] [stdout] | [INFO] [stdout] 58 | fn eval_len(&self) -> f32 [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `methods` [INFO] [stdout] --> src/function.rs:67:8 [INFO] [stdout] | [INFO] [stdout] 67 | pub fn methods() [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `yoda_greetings` [INFO] [stdout] --> src/function.rs:81:4 [INFO] [stdout] | [INFO] [stdout] 81 | fn yoda_greetings() { println!("Greetings from baby Yoda!")} [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `closures` [INFO] [stdout] --> src/function.rs:82:8 [INFO] [stdout] | [INFO] [stdout] 82 | pub fn closures() [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `is_even` [INFO] [stdout] --> src/function.rs:147:4 [INFO] [stdout] | [INFO] [stdout] 147 | fn is_even(x:i32) -> bool { x % 2 == 0 } [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `high_order_fn` [INFO] [stdout] --> src/function.rs:149:8 [INFO] [stdout] | [INFO] [stdout] 149 | pub fn high_order_fn() [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `RustTrait` [INFO] [stdout] --> src/traits.rs:46:8 [INFO] [stdout] | [INFO] [stdout] 46 | pub fn RustTrait() [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `print_info` [INFO] [stdout] --> src/traits.rs:78:4 [INFO] [stdout] | [INFO] [stdout] 78 | fn print_info(shape: impl Shape) [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `print_info0` [INFO] [stdout] --> src/traits.rs:80:4 [INFO] [stdout] | [INFO] [stdout] 80 | fn print_info0(shape: impl Shape + Debug) [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `print_info3` [INFO] [stdout] --> src/traits.rs:87:4 [INFO] [stdout] | [INFO] [stdout] 87 | fn print_info3(shape: T) [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `TraitParameter` [INFO] [stdout] --> src/traits.rs:92:8 [INFO] [stdout] | [INFO] [stdout] 92 | pub fn TraitParameter() [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct is never constructed: `Person` [INFO] [stdout] --> src/traits.rs:105:8 [INFO] [stdout] | [INFO] [stdout] 105 | struct Person{name:String} [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `new2` [INFO] [stdout] --> src/traits.rs:117:8 [INFO] [stdout] | [INFO] [stdout] 117 | fn new2>(name: S) -> Person // 'S' is the genetic type, and Into is the trait that the generic has to implement [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `new3` [INFO] [stdout] --> src/traits.rs:121:8 [INFO] [stdout] | [INFO] [stdout] 121 | fn new3(name: S) -> Person [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `into` [INFO] [stdout] --> src/traits.rs:128:8 [INFO] [stdout] | [INFO] [stdout] 128 | pub fn into() [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `new` [INFO] [stdout] --> src/traits.rs:144:8 [INFO] [stdout] | [INFO] [stdout] 144 | fn new(name: &str) -> Creature [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `drop` [INFO] [stdout] --> src/traits.rs:159:8 [INFO] [stdout] | [INFO] [stdout] 159 | pub fn drop() [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `new` [INFO] [stdout] --> src/traits.rs:176:8 [INFO] [stdout] | [INFO] [stdout] 176 | fn new(re:T, im:T) -> Complex [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `operatoroverload` [INFO] [stdout] --> src/traits.rs:212:8 [INFO] [stdout] | [INFO] [stdout] 212 | pub fn operatoroverload() [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `summary` [INFO] [stdout] --> src/lessonslearned.rs:37:8 [INFO] [stdout] | [INFO] [stdout] 37 | pub fn summary() [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `OneToTen` should have a snake case name [INFO] [stdout] --> src/stdcollection.rs:118:9 [INFO] [stdout] | [INFO] [stdout] 118 | let OneToTen: HashSet<_> = (1..=10).collect(); [INFO] [stdout] | ^^^^^^^^ help: convert the identifier to snake case: `one_to_ten` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_snake_case)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `OneToFive` should have a snake case name [INFO] [stdout] --> src/stdcollection.rs:119:9 [INFO] [stdout] | [INFO] [stdout] 119 | let OneToFive: HashSet<_> = (1..=5).collect(); [INFO] [stdout] | ^^^^^^^^^ help: convert the identifier to snake case: `one_to_five` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `FourToNine` should have a snake case name [INFO] [stdout] --> src/stdcollection.rs:120:9 [INFO] [stdout] | [INFO] [stdout] 120 | let FourToNine: HashSet<_> = (4..=9).collect(); [INFO] [stdout] | ^^^^^^^^^^ help: convert the identifier to snake case: `four_to_nine` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `str::::replace` that must be used [INFO] [stdout] --> src/string.rs:56:5 [INFO] [stdout] | [INFO] [stdout] 56 | phrase.replace("BB8", "R2"); // replace inside a String [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: this returns the replaced string as a new allocation, without modifying the original [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `RustTrait` should have a snake case name [INFO] [stdout] --> src/traits.rs:46:8 [INFO] [stdout] | [INFO] [stdout] 46 | pub fn RustTrait() [INFO] [stdout] | ^^^^^^^^^ help: convert the identifier to snake case: `rust_trait` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `TraitParameter` should have a snake case name [INFO] [stdout] --> src/traits.rs:92:8 [INFO] [stdout] | [INFO] [stdout] 92 | pub fn TraitParameter() [INFO] [stdout] | ^^^^^^^^^^^^^^ help: convert the identifier to snake case: `trait_parameter` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 99 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 7.70s [INFO] running `Command { std: "docker" "inspect" "95dc8f314a1f79a908c984872bd346ffd41f129b5c35a30b53af52d03503231b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "95dc8f314a1f79a908c984872bd346ffd41f129b5c35a30b53af52d03503231b", kill_on_drop: false }` [INFO] [stdout] 95dc8f314a1f79a908c984872bd346ffd41f129b5c35a30b53af52d03503231b [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 95325043921cf96f31a6039a105cb74a7c3a9eb405f1bf395b33c94b2f63d632 [INFO] running `Command { std: "docker" "start" "-a" "95325043921cf96f31a6039a105cb74a7c3a9eb405f1bf395b33c94b2f63d632", kill_on_drop: false }` [INFO] [stderr] Compiling variables v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: variant `locked` should have an upper camel case name [INFO] [stdout] --> src/controlflow.rs:114:14 [INFO] [stdout] | [INFO] [stdout] 114 | enum State { locked, failed, unlocked} //enumerate the states the locker can be in as you first interact with it [INFO] [stdout] | ^^^^^^ help: convert the identifier to upper camel case: `Locked` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_camel_case_types)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant `failed` should have an upper camel case name [INFO] [stdout] --> src/controlflow.rs:114:22 [INFO] [stdout] | [INFO] [stdout] 114 | enum State { locked, failed, unlocked} //enumerate the states the locker can be in as you first interact with it [INFO] [stdout] | ^^^^^^ help: convert the identifier to upper camel case (notice the capitalization): `Failed` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant `unlocked` should have an upper camel case name [INFO] [stdout] --> src/controlflow.rs:114:30 [INFO] [stdout] | [INFO] [stdout] 114 | enum State { locked, failed, unlocked} //enumerate the states the locker can be in as you first interact with it [INFO] [stdout] | ^^^^^^^^ help: convert the identifier to upper camel case (notice the capitalization): `Unlocked` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant `rgbColor` should have an upper camel case name [INFO] [stdout] --> src/structures.rs:33:5 [INFO] [stdout] | [INFO] [stdout] 33 | rgbColor(u8,u8,u8), //tuple [INFO] [stdout] | ^^^^^^^^ help: convert the identifier to upper camel case: `RgbColor` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant `cmyk` should have an upper camel case name [INFO] [stdout] --> src/structures.rs:34:5 [INFO] [stdout] | [INFO] [stdout] 34 | cmyk{cyan:u8, magenta:u8, yellow:u8, black:u8} //struct [INFO] [stdout] | ^^^^ help: convert the identifier to upper camel case (notice the capitalization): `Cmyk` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: type `point` should have an upper camel case name [INFO] [stdout] --> src/structures.rs:206:8 [INFO] [stdout] | [INFO] [stdout] 206 | struct point {x:T, y:T} [INFO] [stdout] | ^^^^^ help: convert the identifier to upper camel case: `Point` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::thread` [INFO] [stdout] --> src/stdcollection.rs:9:5 [INFO] [stdout] | [INFO] [stdout] 9 | use std::thread; [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::time` [INFO] [stdout] --> src/stdcollection.rs:10:5 [INFO] [stdout] | [INFO] [stdout] 10 | use std::time; [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `Neg` [INFO] [stdout] --> src/traits.rs:8:32 [INFO] [stdout] | [INFO] [stdout] 8 | use std::ops::{Add, AddAssign, Neg}; // add 'addition' from the operation module for Rust [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::mem` [INFO] [stdout] --> src/main.rs:15:5 [INFO] [stdout] | [INFO] [stdout] 15 | use std::mem; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable pattern [INFO] [stdout] --> src/structures.rs:51:9 [INFO] [stdout] | [INFO] [stdout] 51 | _ => () //catch all that does absolutely nothing, but makes the match statement exhaustive [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unreachable_patterns)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `combo` [INFO] [stdout] --> src/controlflow.rs:118:9 [INFO] [stdout] | [INFO] [stdout] 118 | let combo = String::from("1234"); [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_combo` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `state` [INFO] [stdout] --> src/controlflow.rs:119:13 [INFO] [stdout] | [INFO] [stdout] 119 | let mut state = State::locked; [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_state` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `attempt` [INFO] [stdout] --> src/controlflow.rs:120:13 [INFO] [stdout] | [INFO] [stdout] 120 | let mut attempt = String::new(); [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_attempt` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `my_line` [INFO] [stdout] --> src/structures.rs:20:9 [INFO] [stdout] | [INFO] [stdout] 20 | let my_line = Line {start:p1, end:p2}; [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_my_line` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `c` [INFO] [stdout] --> src/structures.rs:193:11 [INFO] [stdout] | [INFO] [stdout] 193 | let ((c,d),(e,f)) = combo_tuple; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_c` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `d` [INFO] [stdout] --> src/structures.rs:193:13 [INFO] [stdout] | [INFO] [stdout] 193 | let ((c,d),(e,f)) = combo_tuple; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_d` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `e` [INFO] [stdout] --> src/structures.rs:193:17 [INFO] [stdout] | [INFO] [stdout] 193 | let ((c,d),(e,f)) = combo_tuple; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_e` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `f` [INFO] [stdout] --> src/structures.rs:193:19 [INFO] [stdout] | [INFO] [stdout] 193 | let ((c,d),(e,f)) = combo_tuple; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_f` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `myline` [INFO] [stdout] --> src/structures.rs:217:9 [INFO] [stdout] | [INFO] [stdout] 217 | let myline:Liny = Liny{start:b, end:c}; [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_myline` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `z` [INFO] [stdout] --> src/structures.rs:229:9 [INFO] [stdout] | [INFO] [stdout] 229 | z @ 6..=8 => "lots", // z @ gives a name to the range [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_z` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `x` [INFO] [stdout] --> src/structures.rs:247:10 [INFO] [stdout] | [INFO] [stdout] 247 | (x,0) => println!("lies on y-axix"), [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_x` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `y` [INFO] [stdout] --> src/structures.rs:248:12 [INFO] [stdout] | [INFO] [stdout] 248 | (0,y) => println!("lies on x-axis"), [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_y` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `yoda` [INFO] [stdout] --> src/string.rs:17:9 [INFO] [stdout] | [INFO] [stdout] 17 | let yoda = "I am Yoda"; // &str = string slice [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_yoda` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `x` is never read [INFO] [stdout] --> src/function.rs:121:32 [INFO] [stdout] | [INFO] [stdout] 121 | let plusone = |mut x: i32| x += 1; [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_assignments)]` on by default [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `x` [INFO] [stdout] --> src/function.rs:121:24 [INFO] [stdout] | [INFO] [stdout] 121 | let plusone = |mut x: i32| x += 1; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_x` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `man` [INFO] [stdout] --> src/traits.rs:49:9 [INFO] [stdout] | [INFO] [stdout] 49 | let man = Human::create("Leonard Euler"); [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_man` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `p` [INFO] [stdout] --> src/traits.rs:131:9 [INFO] [stdout] | [INFO] [stdout] 131 | let p = Person::new3(mathematician); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_p` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `dragon` [INFO] [stdout] --> src/traits.rs:161:13 [INFO] [stdout] | [INFO] [stdout] 161 | let mut dragon = Creature::new("Gigi"); [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_dragon` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `bol` [INFO] [stdout] --> src/lessonslearned.rs:43:9 [INFO] [stdout] | [INFO] [stdout] 43 | let bol:bool = true; [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_bol` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `e` [INFO] [stdout] --> src/lessonslearned.rs:48:13 [INFO] [stdout] | [INFO] [stdout] 48 | let mut e:u64 = 10000; //A mutable variable can be changed [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_e` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `e` [INFO] [stdout] --> src/lessonslearned.rs:50:9 [INFO] [stdout] | [INFO] [stdout] 50 | let e = true; //Variables can be overwritten by shadowing [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_e` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `remove` [INFO] [stdout] --> src/lessonslearned.rs:92:9 [INFO] [stdout] | [INFO] [stdout] 92 | let remove = set.remove(&3); // remove elements [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_remove` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/controlflow.rs:119:9 [INFO] [stdout] | [INFO] [stdout] 119 | let mut state = State::locked; [INFO] [stdout] | ----^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/controlflow.rs:120:9 [INFO] [stdout] | [INFO] [stdout] 120 | let mut attempt = String::new(); [INFO] [stdout] | ----^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/stdcollection.rs:178:9 [INFO] [stdout] | [INFO] [stdout] 178 | let mut vec2 = vec![5,6,7,8]; [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/string.rs:46:9 [INFO] [stdout] | [INFO] [stdout] 46 | let mut babyyoda = String::from("Baby Yoda"); [INFO] [stdout] | ----^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/string.rs:47:9 [INFO] [stdout] | [INFO] [stdout] 47 | let mut bb8 = "BB8".to_string(); [INFO] [stdout] | ----^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/string.rs:48:9 [INFO] [stdout] | [INFO] [stdout] 48 | let mut friends= String::from("are friends"); [INFO] [stdout] | ----^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/function.rs:108:9 [INFO] [stdout] | [INFO] [stdout] 108 | let mut add:i32 = 5; [INFO] [stdout] | ----^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/function.rs:122:9 [INFO] [stdout] | [INFO] [stdout] 122 | let mut c = 100; [INFO] [stdout] | ----^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/traits.rs:161:9 [INFO] [stdout] | [INFO] [stdout] 161 | let mut dragon = Creature::new("Gigi"); [INFO] [stdout] | ----^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/traits.rs:215:9 [INFO] [stdout] | [INFO] [stdout] 215 | let mut b = Complex::new(4.0,5.0); [INFO] [stdout] | ----^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/lessonslearned.rs:48:9 [INFO] [stdout] | [INFO] [stdout] 48 | let mut e:u64 = 10000; //A mutable variable can be changed [INFO] [stdout] | ----^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/lessonslearned.rs:69:9 [INFO] [stdout] | [INFO] [stdout] 69 | let mut myvec2:Vec = (20..=25).collect(); [INFO] [stdout] | ----^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct is never constructed: `Point` [INFO] [stdout] --> src/structures.rs:9:8 [INFO] [stdout] | [INFO] [stdout] 9 | struct Point {x:f64, y:f64, z:f64} [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct is never constructed: `Line` [INFO] [stdout] --> src/structures.rs:12:8 [INFO] [stdout] | [INFO] [stdout] 12 | struct Line{start:Point, end:Point} [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `structures` [INFO] [stdout] --> src/structures.rs:15:8 [INFO] [stdout] | [INFO] [stdout] 15 | pub fn structures() [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum is never used: `Color` [INFO] [stdout] --> src/structures.rs:29:6 [INFO] [stdout] | [INFO] [stdout] 29 | enum Color { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `enums` [INFO] [stdout] --> src/structures.rs:39:8 [INFO] [stdout] | [INFO] [stdout] 39 | pub fn enums() [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: union is never used: `IntOrFloat` [INFO] [stdout] --> src/structures.rs:62:7 [INFO] [stdout] | [INFO] [stdout] 62 | union IntOrFloat {i: i32, f: f32} // example of a 32bits union [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `unions` [INFO] [stdout] --> src/structures.rs:64:8 [INFO] [stdout] | [INFO] [stdout] 64 | pub fn unions() [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `options` [INFO] [stdout] --> src/structures.rs:75:8 [INFO] [stdout] | [INFO] [stdout] 75 | pub fn options() [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `array` [INFO] [stdout] --> src/structures.rs:95:8 [INFO] [stdout] | [INFO] [stdout] 95 | pub fn array() [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `use_slice` [INFO] [stdout] --> src/structures.rs:156:8 [INFO] [stdout] | [INFO] [stdout] 156 | pub fn use_slice(slice: &mut[i32]) [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `slices` [INFO] [stdout] --> src/structures.rs:162:8 [INFO] [stdout] | [INFO] [stdout] 162 | pub fn slices() [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `tuples` [INFO] [stdout] --> src/structures.rs:175:8 [INFO] [stdout] | [INFO] [stdout] 175 | pub fn tuples() [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct is never constructed: `point` [INFO] [stdout] --> src/structures.rs:206:8 [INFO] [stdout] | [INFO] [stdout] 206 | struct point {x:T, y:T} [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct is never constructed: `Pointy` [INFO] [stdout] --> src/structures.rs:207:8 [INFO] [stdout] | [INFO] [stdout] 207 | struct Pointy {x:T, y:V} [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct is never constructed: `Liny` [INFO] [stdout] --> src/structures.rs:208:8 [INFO] [stdout] | [INFO] [stdout] 208 | struct Liny {start: point, end:point} [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `generics` [INFO] [stdout] --> src/structures.rs:210:8 [INFO] [stdout] | [INFO] [stdout] 210 | pub fn generics() [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `how_many` [INFO] [stdout] --> src/structures.rs:222:4 [INFO] [stdout] | [INFO] [stdout] 222 | fn how_many(x:i8) -> &'static str [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `pattern_matching` [INFO] [stdout] --> src/structures.rs:236:8 [INFO] [stdout] | [INFO] [stdout] 236 | pub fn pattern_matching() [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `vectors` [INFO] [stdout] --> src/stdcollection.rs:17:8 [INFO] [stdout] | [INFO] [stdout] 17 | pub fn vectors() [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `hashmap` [INFO] [stdout] --> src/stdcollection.rs:63:8 [INFO] [stdout] | [INFO] [stdout] 63 | pub fn hashmap() [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `hashset` [INFO] [stdout] --> src/stdcollection.rs:92:8 [INFO] [stdout] | [INFO] [stdout] 92 | pub fn hashset() [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `iterators` [INFO] [stdout] --> src/stdcollection.rs:148:8 [INFO] [stdout] | [INFO] [stdout] 148 | pub fn iterators() [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `strings` [INFO] [stdout] --> src/string.rs:14:8 [INFO] [stdout] | [INFO] [stdout] 14 | pub fn strings() [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `double` [INFO] [stdout] --> src/function.rs:12:4 [INFO] [stdout] | [INFO] [stdout] 12 | fn double(int: &mut i32) { *int *= 2; println!("{}", int); } [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `product` [INFO] [stdout] --> src/function.rs:15:4 [INFO] [stdout] | [INFO] [stdout] 15 | fn product(x:i32, y:i32) -> i32 { x*y } [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `funk` [INFO] [stdout] --> src/function.rs:19:8 [INFO] [stdout] | [INFO] [stdout] 19 | pub fn funk() [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct is never constructed: `Point` [INFO] [stdout] --> src/function.rs:51:8 [INFO] [stdout] | [INFO] [stdout] 51 | struct Point {x:f32, y:f32} [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct is never constructed: `Line` [INFO] [stdout] --> src/function.rs:52:8 [INFO] [stdout] | [INFO] [stdout] 52 | struct Line {start:Point, end:Point} [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `eval_len` [INFO] [stdout] --> src/function.rs:58:8 [INFO] [stdout] | [INFO] [stdout] 58 | fn eval_len(&self) -> f32 [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `methods` [INFO] [stdout] --> src/function.rs:67:8 [INFO] [stdout] | [INFO] [stdout] 67 | pub fn methods() [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `yoda_greetings` [INFO] [stdout] --> src/function.rs:81:4 [INFO] [stdout] | [INFO] [stdout] 81 | fn yoda_greetings() { println!("Greetings from baby Yoda!")} [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `closures` [INFO] [stdout] --> src/function.rs:82:8 [INFO] [stdout] | [INFO] [stdout] 82 | pub fn closures() [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `is_even` [INFO] [stdout] --> src/function.rs:147:4 [INFO] [stdout] | [INFO] [stdout] 147 | fn is_even(x:i32) -> bool { x % 2 == 0 } [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `high_order_fn` [INFO] [stdout] --> src/function.rs:149:8 [INFO] [stdout] | [INFO] [stdout] 149 | pub fn high_order_fn() [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `RustTrait` [INFO] [stdout] --> src/traits.rs:46:8 [INFO] [stdout] | [INFO] [stdout] 46 | pub fn RustTrait() [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `print_info` [INFO] [stdout] --> src/traits.rs:78:4 [INFO] [stdout] | [INFO] [stdout] 78 | fn print_info(shape: impl Shape) [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `print_info0` [INFO] [stdout] --> src/traits.rs:80:4 [INFO] [stdout] | [INFO] [stdout] 80 | fn print_info0(shape: impl Shape + Debug) [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `print_info3` [INFO] [stdout] --> src/traits.rs:87:4 [INFO] [stdout] | [INFO] [stdout] 87 | fn print_info3(shape: T) [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `TraitParameter` [INFO] [stdout] --> src/traits.rs:92:8 [INFO] [stdout] | [INFO] [stdout] 92 | pub fn TraitParameter() [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct is never constructed: `Person` [INFO] [stdout] --> src/traits.rs:105:8 [INFO] [stdout] | [INFO] [stdout] 105 | struct Person{name:String} [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `new2` [INFO] [stdout] --> src/traits.rs:117:8 [INFO] [stdout] | [INFO] [stdout] 117 | fn new2>(name: S) -> Person // 'S' is the genetic type, and Into is the trait that the generic has to implement [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `new3` [INFO] [stdout] --> src/traits.rs:121:8 [INFO] [stdout] | [INFO] [stdout] 121 | fn new3(name: S) -> Person [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `into` [INFO] [stdout] --> src/traits.rs:128:8 [INFO] [stdout] | [INFO] [stdout] 128 | pub fn into() [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `new` [INFO] [stdout] --> src/traits.rs:144:8 [INFO] [stdout] | [INFO] [stdout] 144 | fn new(name: &str) -> Creature [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `drop` [INFO] [stdout] --> src/traits.rs:159:8 [INFO] [stdout] | [INFO] [stdout] 159 | pub fn drop() [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `new` [INFO] [stdout] --> src/traits.rs:176:8 [INFO] [stdout] | [INFO] [stdout] 176 | fn new(re:T, im:T) -> Complex [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `operatoroverload` [INFO] [stdout] --> src/traits.rs:212:8 [INFO] [stdout] | [INFO] [stdout] 212 | pub fn operatoroverload() [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `summary` [INFO] [stdout] --> src/lessonslearned.rs:37:8 [INFO] [stdout] | [INFO] [stdout] 37 | pub fn summary() [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `OneToTen` should have a snake case name [INFO] [stdout] --> src/stdcollection.rs:118:9 [INFO] [stdout] | [INFO] [stdout] 118 | let OneToTen: HashSet<_> = (1..=10).collect(); [INFO] [stdout] | ^^^^^^^^ help: convert the identifier to snake case: `one_to_ten` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_snake_case)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `OneToFive` should have a snake case name [INFO] [stdout] --> src/stdcollection.rs:119:9 [INFO] [stdout] | [INFO] [stdout] 119 | let OneToFive: HashSet<_> = (1..=5).collect(); [INFO] [stdout] | ^^^^^^^^^ help: convert the identifier to snake case: `one_to_five` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `FourToNine` should have a snake case name [INFO] [stdout] --> src/stdcollection.rs:120:9 [INFO] [stdout] | [INFO] [stdout] 120 | let FourToNine: HashSet<_> = (4..=9).collect(); [INFO] [stdout] | ^^^^^^^^^^ help: convert the identifier to snake case: `four_to_nine` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `str::::replace` that must be used [INFO] [stdout] --> src/string.rs:56:5 [INFO] [stdout] | [INFO] [stdout] 56 | phrase.replace("BB8", "R2"); // replace inside a String [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: this returns the replaced string as a new allocation, without modifying the original [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `RustTrait` should have a snake case name [INFO] [stdout] --> src/traits.rs:46:8 [INFO] [stdout] | [INFO] [stdout] 46 | pub fn RustTrait() [INFO] [stdout] | ^^^^^^^^^ help: convert the identifier to snake case: `rust_trait` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `TraitParameter` should have a snake case name [INFO] [stdout] --> src/traits.rs:92:8 [INFO] [stdout] | [INFO] [stdout] 92 | pub fn TraitParameter() [INFO] [stdout] | ^^^^^^^^^^^^^^ help: convert the identifier to snake case: `trait_parameter` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 99 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 1.38s [INFO] running `Command { std: "docker" "inspect" "95325043921cf96f31a6039a105cb74a7c3a9eb405f1bf395b33c94b2f63d632", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "95325043921cf96f31a6039a105cb74a7c3a9eb405f1bf395b33c94b2f63d632", kill_on_drop: false }` [INFO] [stdout] 95325043921cf96f31a6039a105cb74a7c3a9eb405f1bf395b33c94b2f63d632 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] de04e6eb64275ebb3cbb21a36d2321af50b5624582288a5e71aac4db133c4304 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "de04e6eb64275ebb3cbb21a36d2321af50b5624582288a5e71aac4db133c4304", kill_on_drop: false }` [INFO] [stderr] warning: variant `locked` should have an upper camel case name [INFO] [stderr] --> src/controlflow.rs:114:14 [INFO] [stderr] | [INFO] [stderr] 114 | enum State { locked, failed, unlocked} //enumerate the states the locker can be in as you first interact with it [INFO] [stderr] | ^^^^^^ help: convert the identifier to upper camel case: `Locked` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(non_camel_case_types)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variant `failed` should have an upper camel case name [INFO] [stderr] --> src/controlflow.rs:114:22 [INFO] [stderr] | [INFO] [stderr] 114 | enum State { locked, failed, unlocked} //enumerate the states the locker can be in as you first interact with it [INFO] [stderr] | ^^^^^^ help: convert the identifier to upper camel case (notice the capitalization): `Failed` [INFO] [stderr] [INFO] [stderr] warning: variant `unlocked` should have an upper camel case name [INFO] [stderr] --> src/controlflow.rs:114:30 [INFO] [stderr] | [INFO] [stderr] 114 | enum State { locked, failed, unlocked} //enumerate the states the locker can be in as you first interact with it [INFO] [stderr] | ^^^^^^^^ help: convert the identifier to upper camel case (notice the capitalization): `Unlocked` [INFO] [stderr] [INFO] [stderr] warning: variant `rgbColor` should have an upper camel case name [INFO] [stderr] --> src/structures.rs:33:5 [INFO] [stderr] | [INFO] [stderr] 33 | rgbColor(u8,u8,u8), //tuple [INFO] [stderr] | ^^^^^^^^ help: convert the identifier to upper camel case: `RgbColor` [INFO] [stderr] [INFO] [stderr] warning: variant `cmyk` should have an upper camel case name [INFO] [stderr] --> src/structures.rs:34:5 [INFO] [stderr] | [INFO] [stderr] 34 | cmyk{cyan:u8, magenta:u8, yellow:u8, black:u8} //struct [INFO] [stderr] | ^^^^ help: convert the identifier to upper camel case (notice the capitalization): `Cmyk` [INFO] [stderr] [INFO] [stderr] warning: type `point` should have an upper camel case name [INFO] [stderr] --> src/structures.rs:206:8 [INFO] [stderr] | [INFO] [stderr] 206 | struct point {x:T, y:T} [INFO] [stderr] | ^^^^^ help: convert the identifier to upper camel case: `Point` [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::thread` [INFO] [stderr] --> src/stdcollection.rs:9:5 [INFO] [stderr] | [INFO] [stderr] 9 | use std::thread; [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::time` [INFO] [stderr] --> src/stdcollection.rs:10:5 [INFO] [stderr] | [INFO] [stderr] 10 | use std::time; [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `Neg` [INFO] [stderr] --> src/traits.rs:8:32 [INFO] [stderr] | [INFO] [stderr] 8 | use std::ops::{Add, AddAssign, Neg}; // add 'addition' from the operation module for Rust [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::mem` [INFO] [stderr] --> src/main.rs:15:5 [INFO] [stderr] | [INFO] [stderr] 15 | use std::mem; [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unreachable pattern [INFO] [stderr] --> src/structures.rs:51:9 [INFO] [stderr] | [INFO] [stderr] 51 | _ => () //catch all that does absolutely nothing, but makes the match statement exhaustive [INFO] [stderr] | ^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unreachable_patterns)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `combo` [INFO] [stderr] --> src/controlflow.rs:118:9 [INFO] [stderr] | [INFO] [stderr] 118 | let combo = String::from("1234"); [INFO] [stderr] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_combo` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `state` [INFO] [stderr] --> src/controlflow.rs:119:13 [INFO] [stderr] | [INFO] [stderr] 119 | let mut state = State::locked; [INFO] [stderr] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_state` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `attempt` [INFO] [stderr] --> src/controlflow.rs:120:13 [INFO] [stderr] | [INFO] [stderr] 120 | let mut attempt = String::new(); [INFO] [stderr] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_attempt` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `my_line` [INFO] [stderr] --> src/structures.rs:20:9 [INFO] [stderr] | [INFO] [stderr] 20 | let my_line = Line {start:p1, end:p2}; [INFO] [stderr] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_my_line` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `c` [INFO] [stderr] --> src/structures.rs:193:11 [INFO] [stderr] | [INFO] [stderr] 193 | let ((c,d),(e,f)) = combo_tuple; [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_c` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `d` [INFO] [stderr] --> src/structures.rs:193:13 [INFO] [stderr] | [INFO] [stderr] 193 | let ((c,d),(e,f)) = combo_tuple; [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_d` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `e` [INFO] [stderr] --> src/structures.rs:193:17 [INFO] [stderr] | [INFO] [stderr] 193 | let ((c,d),(e,f)) = combo_tuple; [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_e` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `f` [INFO] [stderr] --> src/structures.rs:193:19 [INFO] [stderr] | [INFO] [stderr] 193 | let ((c,d),(e,f)) = combo_tuple; [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_f` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `myline` [INFO] [stderr] --> src/structures.rs:217:9 [INFO] [stderr] | [INFO] [stderr] 217 | let myline:Liny = Liny{start:b, end:c}; [INFO] [stderr] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_myline` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `z` [INFO] [stderr] --> src/structures.rs:229:9 [INFO] [stderr] | [INFO] [stderr] 229 | z @ 6..=8 => "lots", // z @ gives a name to the range [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_z` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `x` [INFO] [stderr] --> src/structures.rs:247:10 [INFO] [stderr] | [INFO] [stderr] 247 | (x,0) => println!("lies on y-axix"), [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_x` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `y` [INFO] [stderr] --> src/structures.rs:248:12 [INFO] [stderr] | [INFO] [stderr] 248 | (0,y) => println!("lies on x-axis"), [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_y` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `yoda` [INFO] [stderr] --> src/string.rs:17:9 [INFO] [stderr] | [INFO] [stderr] 17 | let yoda = "I am Yoda"; // &str = string slice [INFO] [stderr] | ^^^^ help: if this is intentional, prefix it with an underscore: `_yoda` [INFO] [stderr] [INFO] [stderr] warning: value assigned to `x` is never read [INFO] [stderr] --> src/function.rs:121:32 [INFO] [stderr] | [INFO] [stderr] 121 | let plusone = |mut x: i32| x += 1; [INFO] [stderr] | ^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_assignments)]` on by default [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: unused variable: `x` [INFO] [stderr] --> src/function.rs:121:24 [INFO] [stderr] | [INFO] [stderr] 121 | let plusone = |mut x: i32| x += 1; [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_x` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `man` [INFO] [stderr] --> src/traits.rs:49:9 [INFO] [stderr] | [INFO] [stderr] 49 | let man = Human::create("Leonard Euler"); [INFO] [stderr] | ^^^ help: if this is intentional, prefix it with an underscore: `_man` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `p` [INFO] [stderr] --> src/traits.rs:131:9 [INFO] [stderr] | [INFO] [stderr] 131 | let p = Person::new3(mathematician); [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_p` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `dragon` [INFO] [stderr] --> src/traits.rs:161:13 [INFO] [stderr] | [INFO] [stderr] 161 | let mut dragon = Creature::new("Gigi"); [INFO] [stderr] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_dragon` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `bol` [INFO] [stderr] --> src/lessonslearned.rs:43:9 [INFO] [stderr] | [INFO] [stderr] 43 | let bol:bool = true; [INFO] [stderr] | ^^^ help: if this is intentional, prefix it with an underscore: `_bol` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `e` [INFO] [stderr] --> src/lessonslearned.rs:48:13 [INFO] [stderr] | [INFO] [stderr] 48 | let mut e:u64 = 10000; //A mutable variable can be changed [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_e` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `e` [INFO] [stderr] --> src/lessonslearned.rs:50:9 [INFO] [stderr] | [INFO] [stderr] 50 | let e = true; //Variables can be overwritten by shadowing [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_e` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `remove` [INFO] [stderr] --> src/lessonslearned.rs:92:9 [INFO] [stderr] | [INFO] [stderr] 92 | let remove = set.remove(&3); // remove elements [INFO] [stderr] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_remove` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/controlflow.rs:119:9 [INFO] [stderr] | [INFO] [stderr] 119 | let mut state = State::locked; [INFO] [stderr] | ----^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_mut)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/controlflow.rs:120:9 [INFO] [stderr] | [INFO] [stderr] 120 | let mut attempt = String::new(); [INFO] [stderr] | ----^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/stdcollection.rs:178:9 [INFO] [stderr] | [INFO] [stderr] 178 | let mut vec2 = vec![5,6,7,8]; [INFO] [stderr] | ----^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/string.rs:46:9 [INFO] [stderr] | [INFO] [stderr] 46 | let mut babyyoda = String::from("Baby Yoda"); [INFO] [stderr] | ----^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/string.rs:47:9 [INFO] [stderr] | [INFO] [stderr] 47 | let mut bb8 = "BB8".to_string(); [INFO] [stderr] | ----^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/string.rs:48:9 [INFO] [stderr] | [INFO] [stderr] 48 | let mut friends= String::from("are friends"); [INFO] [stderr] | ----^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/function.rs:108:9 [INFO] [stderr] | [INFO] [stderr] 108 | let mut add:i32 = 5; [INFO] [stderr] | ----^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/function.rs:122:9 [INFO] [stderr] | [INFO] [stderr] 122 | let mut c = 100; [INFO] [stderr] | ----^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/traits.rs:161:9 [INFO] [stderr] | [INFO] [stderr] 161 | let mut dragon = Creature::new("Gigi"); [INFO] [stderr] | ----^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/traits.rs:215:9 [INFO] [stderr] | [INFO] [stderr] 215 | let mut b = Complex::new(4.0,5.0); [INFO] [stderr] | ----^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/lessonslearned.rs:48:9 [INFO] [stderr] | [INFO] [stderr] 48 | let mut e:u64 = 10000; //A mutable variable can be changed [INFO] [stderr] | ----^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/lessonslearned.rs:69:9 [INFO] [stderr] | [INFO] [stderr] 69 | let mut myvec2:Vec = (20..=25).collect(); [INFO] [stderr] | ----^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Point` [INFO] [stderr] --> src/structures.rs:9:8 [INFO] [stderr] | [INFO] [stderr] 9 | struct Point {x:f64, y:f64, z:f64} [INFO] [stderr] | ^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Line` [INFO] [stderr] --> src/structures.rs:12:8 [INFO] [stderr] | [INFO] [stderr] 12 | struct Line{start:Point, end:Point} [INFO] [stderr] | ^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `structures` [INFO] [stderr] --> src/structures.rs:15:8 [INFO] [stderr] | [INFO] [stderr] 15 | pub fn structures() [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: enum is never used: `Color` [INFO] [stderr] --> src/structures.rs:29:6 [INFO] [stderr] | [INFO] [stderr] 29 | enum Color { [INFO] [stderr] | ^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `enums` [INFO] [stderr] --> src/structures.rs:39:8 [INFO] [stderr] | [INFO] [stderr] 39 | pub fn enums() [INFO] [stderr] | ^^^^^ [INFO] [stderr] [INFO] [stderr] warning: union is never used: `IntOrFloat` [INFO] [stderr] --> src/structures.rs:62:7 [INFO] [stderr] | [INFO] [stderr] 62 | union IntOrFloat {i: i32, f: f32} // example of a 32bits union [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `unions` [INFO] [stderr] --> src/structures.rs:64:8 [INFO] [stderr] | [INFO] [stderr] 64 | pub fn unions() [INFO] [stderr] | ^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `options` [INFO] [stderr] --> src/structures.rs:75:8 [INFO] [stderr] | [INFO] [stderr] 75 | pub fn options() [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `array` [INFO] [stderr] --> src/structures.rs:95:8 [INFO] [stderr] | [INFO] [stderr] 95 | pub fn array() [INFO] [stderr] | ^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `use_slice` [INFO] [stderr] --> src/structures.rs:156:8 [INFO] [stderr] | [INFO] [stderr] 156 | pub fn use_slice(slice: &mut[i32]) [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `slices` [INFO] [stderr] --> src/structures.rs:162:8 [INFO] [stderr] | [INFO] [stderr] 162 | pub fn slices() [INFO] [stderr] | ^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `tuples` [INFO] [stderr] --> src/structures.rs:175:8 [INFO] [stderr] | [INFO] [stderr] 175 | pub fn tuples() [INFO] [stderr] | ^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `point` [INFO] [stderr] --> src/structures.rs:206:8 [INFO] [stderr] | [INFO] [stderr] 206 | struct point {x:T, y:T} [INFO] [stderr] | ^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Pointy` [INFO] [stderr] --> src/structures.rs:207:8 [INFO] [stderr] | [INFO] [stderr] 207 | struct Pointy {x:T, y:V} [INFO] [stderr] | ^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Liny` [INFO] [stderr] --> src/structures.rs:208:8 [INFO] [stderr] | [INFO] [stderr] 208 | struct Liny {start: point, end:point} [INFO] [stderr] | ^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `generics` [INFO] [stderr] --> src/structures.rs:210:8 [INFO] [stderr] | [INFO] [stderr] 210 | pub fn generics() [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `how_many` [INFO] [stderr] --> src/structures.rs:222:4 [INFO] [stderr] | [INFO] [stderr] 222 | fn how_many(x:i8) -> &'static str [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `pattern_matching` [INFO] [stderr] --> src/structures.rs:236:8 [INFO] [stderr] | [INFO] [stderr] 236 | pub fn pattern_matching() [INFO] [stderr] | ^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `vectors` [INFO] [stderr] --> src/stdcollection.rs:17:8 [INFO] [stderr] | [INFO] [stderr] 17 | pub fn vectors() [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `hashmap` [INFO] [stderr] --> src/stdcollection.rs:63:8 [INFO] [stderr] | [INFO] [stderr] 63 | pub fn hashmap() [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `hashset` [INFO] [stderr] --> src/stdcollection.rs:92:8 [INFO] [stderr] | [INFO] [stderr] 92 | pub fn hashset() [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `iterators` [INFO] [stderr] --> src/stdcollection.rs:148:8 [INFO] [stderr] | [INFO] [stderr] 148 | pub fn iterators() [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `strings` [INFO] [stderr] --> src/string.rs:14:8 [INFO] [stderr] | [INFO] [stderr] 14 | pub fn strings() [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `double` [INFO] [stderr] --> src/function.rs:12:4 [INFO] [stderr] | [INFO] [stderr] 12 | fn double(int: &mut i32) { *int *= 2; println!("{}", int); } [INFO] [stderr] | ^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `product` [INFO] [stderr] --> src/function.rs:15:4 [INFO] [stderr] | [INFO] [stderr] 15 | fn product(x:i32, y:i32) -> i32 { x*y } [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `funk` [INFO] [stderr] --> src/function.rs:19:8 [INFO] [stderr] | [INFO] [stderr] 19 | pub fn funk() [INFO] [stderr] | ^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Point` [INFO] [stderr] --> src/function.rs:51:8 [INFO] [stderr] | [INFO] [stderr] 51 | struct Point {x:f32, y:f32} [INFO] [stderr] | ^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Line` [INFO] [stderr] --> src/function.rs:52:8 [INFO] [stderr] | [INFO] [stderr] 52 | struct Line {start:Point, end:Point} [INFO] [stderr] | ^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `eval_len` [INFO] [stderr] --> src/function.rs:58:8 [INFO] [stderr] | [INFO] [stderr] 58 | fn eval_len(&self) -> f32 [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `methods` [INFO] [stderr] --> src/function.rs:67:8 [INFO] [stderr] | [INFO] [stderr] 67 | pub fn methods() [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `yoda_greetings` [INFO] [stderr] --> src/function.rs:81:4 [INFO] [stderr] | [INFO] [stderr] 81 | fn yoda_greetings() { println!("Greetings from baby Yoda!")} [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `closures` [INFO] [stderr] --> src/function.rs:82:8 [INFO] [stderr] | [INFO] [stderr] 82 | pub fn closures() [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `is_even` [INFO] [stderr] --> src/function.rs:147:4 [INFO] [stderr] | [INFO] [stderr] 147 | fn is_even(x:i32) -> bool { x % 2 == 0 } [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `high_order_fn` [INFO] [stderr] --> src/function.rs:149:8 [INFO] [stderr] | [INFO] [stderr] 149 | pub fn high_order_fn() [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `RustTrait` [INFO] [stderr] --> src/traits.rs:46:8 [INFO] [stderr] | [INFO] [stderr] 46 | pub fn RustTrait() [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `print_info` [INFO] [stderr] --> src/traits.rs:78:4 [INFO] [stderr] | [INFO] [stderr] 78 | fn print_info(shape: impl Shape) [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `print_info0` [INFO] [stderr] --> src/traits.rs:80:4 [INFO] [stderr] | [INFO] [stderr] 80 | fn print_info0(shape: impl Shape + Debug) [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `print_info3` [INFO] [stderr] --> src/traits.rs:87:4 [INFO] [stderr] | [INFO] [stderr] 87 | fn print_info3(shape: T) [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `TraitParameter` [INFO] [stderr] --> src/traits.rs:92:8 [INFO] [stderr] | [INFO] [stderr] 92 | pub fn TraitParameter() [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Person` [INFO] [stderr] --> src/traits.rs:105:8 [INFO] [stderr] | [INFO] [stderr] 105 | struct Person{name:String} [INFO] [stderr] | ^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `new2` [INFO] [stderr] --> src/traits.rs:117:8 [INFO] [stderr] | [INFO] [stderr] 117 | fn new2>(name: S) -> Person // 'S' is the genetic type, and Into is the trait that the generic has to implement [INFO] [stderr] | ^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `new3` [INFO] [stderr] --> src/traits.rs:121:8 [INFO] [stderr] | [INFO] [stderr] 121 | fn new3(name: S) -> Person [INFO] [stderr] | ^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `into` [INFO] [stderr] --> src/traits.rs:128:8 [INFO] [stderr] | [INFO] [stderr] 128 | pub fn into() [INFO] [stderr] | ^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `new` [INFO] [stderr] --> src/traits.rs:144:8 [INFO] [stderr] | [INFO] [stderr] 144 | fn new(name: &str) -> Creature [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `drop` [INFO] [stderr] --> src/traits.rs:159:8 [INFO] [stderr] | [INFO] [stderr] 159 | pub fn drop() [INFO] [stderr] | ^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `new` [INFO] [stderr] --> src/traits.rs:176:8 [INFO] [stderr] | [INFO] [stderr] 176 | fn new(re:T, im:T) -> Complex [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `operatoroverload` [INFO] [stderr] --> src/traits.rs:212:8 [INFO] [stderr] | [INFO] [stderr] 212 | pub fn operatoroverload() [INFO] [stderr] | ^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `summary` [INFO] [stderr] --> src/lessonslearned.rs:37:8 [INFO] [stderr] | [INFO] [stderr] 37 | pub fn summary() [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variable `OneToTen` should have a snake case name [INFO] [stderr] --> src/stdcollection.rs:118:9 [INFO] [stderr] | [INFO] [stderr] 118 | let OneToTen: HashSet<_> = (1..=10).collect(); [INFO] [stderr] | ^^^^^^^^ help: convert the identifier to snake case: `one_to_ten` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(non_snake_case)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variable `OneToFive` should have a snake case name [INFO] [stderr] --> src/stdcollection.rs:119:9 [INFO] [stderr] | [INFO] [stderr] 119 | let OneToFive: HashSet<_> = (1..=5).collect(); [INFO] [stderr] | ^^^^^^^^^ help: convert the identifier to snake case: `one_to_five` [INFO] [stderr] [INFO] [stderr] warning: variable `FourToNine` should have a snake case name [INFO] [stderr] --> src/stdcollection.rs:120:9 [INFO] [stderr] | [INFO] [stderr] 120 | let FourToNine: HashSet<_> = (4..=9).collect(); [INFO] [stderr] | ^^^^^^^^^^ help: convert the identifier to snake case: `four_to_nine` [INFO] [stderr] [INFO] [stderr] warning: unused return value of `str::::replace` that must be used [INFO] [stderr] --> src/string.rs:56:5 [INFO] [stderr] | [INFO] [stderr] 56 | phrase.replace("BB8", "R2"); // replace inside a String [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_must_use)]` on by default [INFO] [stderr] = note: this returns the replaced string as a new allocation, without modifying the original [INFO] [stderr] [INFO] [stderr] warning: function `RustTrait` should have a snake case name [INFO] [stderr] --> src/traits.rs:46:8 [INFO] [stderr] | [INFO] [stderr] 46 | pub fn RustTrait() [INFO] [stderr] | ^^^^^^^^^ help: convert the identifier to snake case: `rust_trait` [INFO] [stderr] [INFO] [stderr] warning: function `TraitParameter` should have a snake case name [INFO] [stderr] --> src/traits.rs:92:8 [INFO] [stderr] | [INFO] [stderr] 92 | pub fn TraitParameter() [INFO] [stderr] | ^^^^^^^^^^^^^^ help: convert the identifier to snake case: `trait_parameter` [INFO] [stderr] [INFO] [stderr] warning: `variables` (bin "variables" test) generated 99 warnings [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.05s [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/variables-8e9fa4d7a3a185f7) [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "de04e6eb64275ebb3cbb21a36d2321af50b5624582288a5e71aac4db133c4304", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "de04e6eb64275ebb3cbb21a36d2321af50b5624582288a5e71aac4db133c4304", kill_on_drop: false }` [INFO] [stdout] de04e6eb64275ebb3cbb21a36d2321af50b5624582288a5e71aac4db133c4304