[INFO] cloning repository https://github.com/SuanCaiYv/rust-learn-base [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/SuanCaiYv/rust-learn-base" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSuanCaiYv%2Frust-learn-base", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSuanCaiYv%2Frust-learn-base'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 1b1d5d9a7778721f463fa91e515064438849ed12 [INFO] testing SuanCaiYv/rust-learn-base against beta-2022-04-10 for beta-1.61-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSuanCaiYv%2Frust-learn-base" "/workspace/builds/worker-18/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-18/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/SuanCaiYv/rust-learn-base on toolchain beta-2022-04-10 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/SuanCaiYv/rust-learn-base [INFO] finished tweaking git repo https://github.com/SuanCaiYv/rust-learn-base [INFO] tweaked toml for git repo https://github.com/SuanCaiYv/rust-learn-base written to /workspace/builds/worker-18/source/Cargo.toml [INFO] crate git repo https://github.com/SuanCaiYv/rust-learn-base already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] e5a969cfdbbce227ee68c638d040a75e923547462e98eaab443c9150764e7711 [INFO] running `Command { std: "docker" "start" "-a" "e5a969cfdbbce227ee68c638d040a75e923547462e98eaab443c9150764e7711", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "e5a969cfdbbce227ee68c638d040a75e923547462e98eaab443c9150764e7711", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e5a969cfdbbce227ee68c638d040a75e923547462e98eaab443c9150764e7711", kill_on_drop: false }` [INFO] [stdout] e5a969cfdbbce227ee68c638d040a75e923547462e98eaab443c9150764e7711 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] fabcac5c48871e469fc8bf05722dfa2c6fa6854d641dc3120963a82d009f1f21 [INFO] running `Command { std: "docker" "start" "-a" "fabcac5c48871e469fc8bf05722dfa2c6fa6854d641dc3120963a82d009f1f21", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling libc v0.2.100 [INFO] [stderr] Compiling getrandom v0.2.3 [INFO] [stderr] Compiling time v0.1.43 [INFO] [stderr] Compiling rand_core v0.6.3 [INFO] [stderr] Compiling chrono v0.4.19 [INFO] [stderr] Compiling rand_chacha v0.3.1 [INFO] [stderr] Compiling rand v0.8.4 [INFO] [stderr] Compiling rust-base-learn v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `std::thread` [INFO] [stdout] --> src/function.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 2 | 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::borrow::Borrow` [INFO] [stdout] --> src/thread0.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 5 | use std::borrow::Borrow; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::thread::spawn` [INFO] [stdout] --> src/test.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::thread::spawn; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] help: consider adding a `#[cfg(test)]` to the containing module [INFO] [stdout] --> src/main.rs:14:1 [INFO] [stdout] | [INFO] [stdout] 14 | mod test; [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::time::*` [INFO] [stdout] --> src/oop.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::time::*; [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `chrono::Local` [INFO] [stdout] --> src/oop.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 2 | use chrono::Local; [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `Add`, `Deref` [INFO] [stdout] --> src/unsafe0.rs:1:16 [INFO] [stdout] | [INFO] [stdout] 1 | use std::ops::{Add, Deref}; [INFO] [stdout] | ^^^ ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::ptr::drop_in_place` [INFO] [stdout] --> src/unsafe0.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 2 | use std::ptr::drop_in_place; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary trailing semicolon [INFO] [stdout] --> src/unsafe0.rs:115:6 [INFO] [stdout] | [INFO] [stdout] 115 | }; [INFO] [stdout] | ^ help: remove this semicolon [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(redundant_semicolons)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::io` [INFO] [stdout] --> src/main.rs:20:5 [INFO] [stdout] | [INFO] [stdout] 20 | use std::io; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `crate::struct0::*` [INFO] [stdout] --> src/main.rs:26:5 [INFO] [stdout] | [INFO] [stdout] 26 | use crate::struct0::*; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `crate::test::test` [INFO] [stdout] --> src/main.rs:35:5 [INFO] [stdout] | [INFO] [stdout] 35 | use crate::test::test; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `crate::unsafe0::*` [INFO] [stdout] --> src/main.rs:38:5 [INFO] [stdout] | [INFO] [stdout] 38 | use crate::unsafe0::*; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::collections::HashMap` [INFO] [stdout] --> src/main.rs:40:5 [INFO] [stdout] | [INFO] [stdout] 40 | use std::collections::HashMap; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::thread` [INFO] [stdout] --> src/main.rs:41:5 [INFO] [stdout] | [INFO] [stdout] 41 | use std::thread; [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::time::Duration` [INFO] [stdout] --> src/main.rs:42:5 [INFO] [stdout] | [INFO] [stdout] 42 | use std::time::Duration; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `var1` [INFO] [stdout] --> src/base.rs:3:9 [INFO] [stdout] | [INFO] [stdout] 3 | let var1 = 10; [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_var1` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `var2` [INFO] [stdout] --> src/base.rs:5:9 [INFO] [stdout] | [INFO] [stdout] 5 | let var2 :i64 = 20; [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_var2` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `var3` is assigned to, but never used [INFO] [stdout] --> src/base.rs:7:13 [INFO] [stdout] | [INFO] [stdout] 7 | let mut var3 = 15; [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: consider using `_var3` instead [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `var3` is never read [INFO] [stdout] --> src/base.rs:8:5 [INFO] [stdout] | [INFO] [stdout] 8 | var3 = 25; [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: `var1` [INFO] [stdout] --> src/base.rs:10:9 [INFO] [stdout] | [INFO] [stdout] 10 | let var1 = "str1"; [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_var1` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `var4` [INFO] [stdout] --> src/base.rs:13:9 [INFO] [stdout] | [INFO] [stdout] 13 | let var4 = 1.0; [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_var4` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `var5` [INFO] [stdout] --> src/base.rs:14:9 [INFO] [stdout] | [INFO] [stdout] 14 | let var5 = true; [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_var5` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `var6` [INFO] [stdout] --> src/base.rs:16:9 [INFO] [stdout] | [INFO] [stdout] 16 | let var6 = '😊'; [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_var6` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `tup1` [INFO] [stdout] --> src/base.rs:18:9 [INFO] [stdout] | [INFO] [stdout] 18 | let tup1 = (1, 2, 3); [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_tup1` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `tup2` [INFO] [stdout] --> src/base.rs:20:9 [INFO] [stdout] | [INFO] [stdout] 20 | let tup2 = (1, 2.0, false); [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_tup2` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `arr1` [INFO] [stdout] --> src/base.rs:22:9 [INFO] [stdout] | [INFO] [stdout] 22 | let arr1 = [1, 2, 3]; [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_arr1` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `str` [INFO] [stdout] --> src/ownership.rs:2:23 [INFO] [stdout] | [INFO] [stdout] 2 | pub fn move_ownership(str : String) { [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_str` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `str` [INFO] [stdout] --> src/ownership.rs:13:28 [INFO] [stdout] | [INFO] [stdout] 13 | pub fn reference_ownership(str : &String) { [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_str` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `s1` [INFO] [stdout] --> src/string0.rs:5:9 [INFO] [stdout] | [INFO] [stdout] 5 | let s1 = "aaa".to_string(); [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_s1` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `s2` [INFO] [stdout] --> src/string0.rs:6:9 [INFO] [stdout] | [INFO] [stdout] 6 | let s2 = String::from("aaa"); [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_s2` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `all` [INFO] [stdout] --> src/lifetime0.rs:35:9 [INFO] [stdout] | [INFO] [stdout] 35 | let all: &'static str = "static"; [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_all` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `x` [INFO] [stdout] --> src/lifetime0.rs:61:25 [INFO] [stdout] | [INFO] [stdout] 61 | fn rule_one<'a, 'b, 'c>(x: &'a i32, y: &'b String, z: &'c str) { [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/lifetime0.rs:61:37 [INFO] [stdout] | [INFO] [stdout] 61 | fn rule_one<'a, 'b, 'c>(x: &'a i32, y: &'b String, z: &'c str) { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_y` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `z` [INFO] [stdout] --> src/lifetime0.rs:61:52 [INFO] [stdout] | [INFO] [stdout] 61 | fn rule_one<'a, 'b, 'c>(x: &'a i32, y: &'b String, z: &'c str) { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_z` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `tmp2` [INFO] [stdout] --> src/pointer.rs:119:9 [INFO] [stdout] | [INFO] [stdout] 119 | let tmp2 = Tmp2 { [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_tmp2` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `tmp3` [INFO] [stdout] --> src/pointer.rs:122:9 [INFO] [stdout] | [INFO] [stdout] 122 | let tmp3 = Tmp3 { [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_tmp3` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `tmp4` [INFO] [stdout] --> src/pointer.rs:127:9 [INFO] [stdout] | [INFO] [stdout] 127 | let tmp4 = Tmp4 { [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_tmp4` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `tmp5` [INFO] [stdout] --> src/pointer.rs:131:13 [INFO] [stdout] | [INFO] [stdout] 131 | let tmp5 = Tmp5 { [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_tmp5` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `i` [INFO] [stdout] --> src/thread0.rs:50:9 [INFO] [stdout] | [INFO] [stdout] 50 | for i in 0..5 { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `a` [INFO] [stdout] --> src/design_mode.rs:7:9 [INFO] [stdout] | [INFO] [stdout] 7 | let a = Some(12); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_a` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `x` [INFO] [stdout] --> src/design_mode.rs:10:17 [INFO] [stdout] | [INFO] [stdout] 10 | if let Some(x) = b { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_x` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `t` [INFO] [stdout] --> src/unsafe0.rs:89:10 [INFO] [stdout] | [INFO] [stdout] 89 | fn f1(t: T) {} [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_t` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `t` [INFO] [stdout] --> src/unsafe0.rs:92:18 [INFO] [stdout] | [INFO] [stdout] 92 | fn f2(t: &T) {} [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_t` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `i` [INFO] [stdout] --> src/unsafe0.rs:150:17 [INFO] [stdout] | [INFO] [stdout] 150 | for i in 0..10 { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `c` is assigned to, but never used [INFO] [stdout] --> src/unsafe0.rs:176:9 [INFO] [stdout] | [INFO] [stdout] 176 | let c: &Complex; [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] = note: consider using `_c` instead [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `c` is never read [INFO] [stdout] --> src/unsafe0.rs:177:5 [INFO] [stdout] | [INFO] [stdout] 177 | c = &Complex { [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `size` [INFO] [stdout] --> src/lite_web.rs:87:24 [INFO] [stdout] | [INFO] [stdout] 87 | Ok(size) => { [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_size` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `i` [INFO] [stdout] --> src/lite_web.rs:93:29 [INFO] [stdout] | [INFO] [stdout] 93 | for i in 0..len { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `err` [INFO] [stdout] --> src/lite_web.rs:102:25 [INFO] [stdout] | [INFO] [stdout] 102 | Err(err) => { [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_err` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `handle` [INFO] [stdout] --> src/lite_web.rs:122:13 [INFO] [stdout] | [INFO] [stdout] 122 | let handle = spawn(move || { [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_handle` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/vector.rs:2:9 [INFO] [stdout] | [INFO] [stdout] 2 | let mut vec1 = vec![1, 2, 3]; [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/pointer.rs:140:9 [INFO] [stdout] | [INFO] [stdout] 140 | let mut mr1 = MutRef { [INFO] [stdout] | ----^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `chap1_3` [INFO] [stdout] --> src/main.rs:48:4 [INFO] [stdout] | [INFO] [stdout] 48 | fn chap1_3() { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `chap4` [INFO] [stdout] --> src/main.rs:54:4 [INFO] [stdout] | [INFO] [stdout] 54 | fn chap4() { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `chap5` [INFO] [stdout] --> src/main.rs:71:4 [INFO] [stdout] | [INFO] [stdout] 71 | fn chap5() { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `chap6` [INFO] [stdout] --> src/main.rs:80:4 [INFO] [stdout] | [INFO] [stdout] 80 | fn chap6() { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `chap8` [INFO] [stdout] --> src/main.rs:93:4 [INFO] [stdout] | [INFO] [stdout] 93 | fn chap8() { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `chap9` [INFO] [stdout] --> src/main.rs:98:4 [INFO] [stdout] | [INFO] [stdout] 98 | fn chap9() { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `chap13` [INFO] [stdout] --> src/main.rs:104:4 [INFO] [stdout] | [INFO] [stdout] 104 | fn chap13() { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `chap15` [INFO] [stdout] --> src/main.rs:109:4 [INFO] [stdout] | [INFO] [stdout] 109 | fn chap15() { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `chap16` [INFO] [stdout] --> src/main.rs:114:4 [INFO] [stdout] | [INFO] [stdout] 114 | fn chap16() { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `chap17` [INFO] [stdout] --> src/main.rs:118:4 [INFO] [stdout] | [INFO] [stdout] 118 | fn chap17() { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `chap18` [INFO] [stdout] --> src/main.rs:122:4 [INFO] [stdout] | [INFO] [stdout] 122 | fn chap18() { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `var` [INFO] [stdout] --> src/base.rs:1:8 [INFO] [stdout] | [INFO] [stdout] 1 | pub fn var() { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `add` [INFO] [stdout] --> src/base.rs:25:8 [INFO] [stdout] | [INFO] [stdout] 25 | pub fn add(x :i32, y :i32) -> i32 { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `control` [INFO] [stdout] --> src/base.rs:32:8 [INFO] [stdout] | [INFO] [stdout] 32 | pub fn control() { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `move_ownership` [INFO] [stdout] --> src/ownership.rs:2:8 [INFO] [stdout] | [INFO] [stdout] 2 | pub fn move_ownership(str : String) { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `move_ownership_and_giveback` [INFO] [stdout] --> src/ownership.rs:7:8 [INFO] [stdout] | [INFO] [stdout] 7 | pub fn move_ownership_and_giveback(str : String) -> String { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `reference_ownership` [INFO] [stdout] --> src/ownership.rs:13:8 [INFO] [stdout] | [INFO] [stdout] 13 | pub fn reference_ownership(str : &String) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `reference_ownership_mut` [INFO] [stdout] --> src/ownership.rs:18:8 [INFO] [stdout] | [INFO] [stdout] 18 | pub fn reference_ownership_mut(str : &mut String) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `note_chap4` [INFO] [stdout] --> src/ownership.rs:24:8 [INFO] [stdout] | [INFO] [stdout] 24 | pub fn note_chap4() { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `sub_str` [INFO] [stdout] --> src/ownership.rs:30:8 [INFO] [stdout] | [INFO] [stdout] 30 | pub fn sub_str(str : &String, mut from : usize, mut to : usize) -> &str { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct is never constructed: `Phone` [INFO] [stdout] --> src/struct0.rs:1:12 [INFO] [stdout] | [INFO] [stdout] 1 | pub struct Phone { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `display` [INFO] [stdout] --> src/struct0.rs:12:12 [INFO] [stdout] | [INFO] [stdout] 12 | pub fn display(&self) { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `default` [INFO] [stdout] --> src/struct0.rs:17:12 [INFO] [stdout] | [INFO] [stdout] 17 | pub fn default() -> Phone { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct is never constructed: `PhoneTuple` [INFO] [stdout] --> src/struct0.rs:28:12 [INFO] [stdout] | [INFO] [stdout] 28 | pub struct PhoneTuple(pub String, pub String, pub String, pub u64); [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `build_phone` [INFO] [stdout] --> src/struct0.rs:34:8 [INFO] [stdout] | [INFO] [stdout] 34 | pub fn build_phone(factory0: String, series0: String, seq_num0: String, id0: u64) -> Phone { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `build_phone_tuple` [INFO] [stdout] --> src/struct0.rs:44:8 [INFO] [stdout] | [INFO] [stdout] 44 | pub fn build_phone_tuple(factory0: String, series0: String, seq_num0: String, id0: u64) -> PhoneTuple { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum is never used: `Company` [INFO] [stdout] --> src/enum_match.rs:1:10 [INFO] [stdout] | [INFO] [stdout] 1 | pub enum Company { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum is never used: `MsgStatus` [INFO] [stdout] --> src/enum_match.rs:10:10 [INFO] [stdout] | [INFO] [stdout] 10 | pub enum MsgStatus { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `print` [INFO] [stdout] --> src/enum_match.rs:21:12 [INFO] [stdout] | [INFO] [stdout] 21 | pub fn print(&self) { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `value` [INFO] [stdout] --> src/enum_match.rs:26:12 [INFO] [stdout] | [INFO] [stdout] 26 | pub fn value(self) -> String { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `set_phone` [INFO] [stdout] --> src/enum_match.rs:38:8 [INFO] [stdout] | [INFO] [stdout] 38 | pub fn set_phone() { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `increment` [INFO] [stdout] --> src/enum_match.rs:43:8 [INFO] [stdout] | [INFO] [stdout] 43 | pub fn increment(op: Option) -> i32 { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `num_fmt` [INFO] [stdout] --> src/enum_match.rs:51:8 [INFO] [stdout] | [INFO] [stdout] 51 | pub fn num_fmt(val: i32) { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `only_one` [INFO] [stdout] --> src/enum_match.rs:67:8 [INFO] [stdout] | [INFO] [stdout] 67 | pub fn only_one(op: Option) { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `just_display_vec` [INFO] [stdout] --> src/vector.rs:1:8 [INFO] [stdout] | [INFO] [stdout] 1 | pub fn just_display_vec() { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum is never used: `MultiHttpMsg` [INFO] [stdout] --> src/vector.rs:38:6 [INFO] [stdout] | [INFO] [stdout] 38 | enum MultiHttpMsg { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `to_string` [INFO] [stdout] --> src/vector.rs:46:8 [INFO] [stdout] | [INFO] [stdout] 46 | fn to_string(self) -> String { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `test_string` [INFO] [stdout] --> src/string0.rs:3:8 [INFO] [stdout] | [INFO] [stdout] 3 | pub fn test_string() { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `f` [INFO] [stdout] --> src/string0.rs:34:4 [INFO] [stdout] | [INFO] [stdout] 34 | fn f(s: &String) -> &str { [INFO] [stdout] | ^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct is never constructed: `DoubleVal` [INFO] [stdout] --> src/generic.rs:1:12 [INFO] [stdout] | [INFO] [stdout] 1 | pub struct DoubleVal { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `x` [INFO] [stdout] --> src/generic.rs:7:8 [INFO] [stdout] | [INFO] [stdout] 7 | fn x(&self) -> &T { [INFO] [stdout] | ^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `y` [INFO] [stdout] --> src/generic.rs:11:8 [INFO] [stdout] | [INFO] [stdout] 11 | fn y(&self) -> &U { [INFO] [stdout] | ^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `swap` [INFO] [stdout] --> src/generic.rs:16:8 [INFO] [stdout] | [INFO] [stdout] 16 | fn swap(self, val: DoubleVal) -> DoubleVal { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `sum` [INFO] [stdout] --> src/generic.rs:26:8 [INFO] [stdout] | [INFO] [stdout] 26 | fn sum(&self) -> i32 { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `test_double_val` [INFO] [stdout] --> src/generic.rs:31:8 [INFO] [stdout] | [INFO] [stdout] 31 | pub fn test_double_val() { [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `test_trait` [INFO] [stdout] --> src/trait0.rs:41:8 [INFO] [stdout] | [INFO] [stdout] 41 | pub fn test_trait() { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `trait_as_param1` [INFO] [stdout] --> src/trait0.rs:54:4 [INFO] [stdout] | [INFO] [stdout] 54 | fn trait_as_param1(val: &impl Info) { [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `trait_as_param2` [INFO] [stdout] --> src/trait0.rs:58:4 [INFO] [stdout] | [INFO] [stdout] 58 | fn trait_as_param2(val: &T) { [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `trait_as_param3` [INFO] [stdout] --> src/trait0.rs:62:4 [INFO] [stdout] | [INFO] [stdout] 62 | fn trait_as_param3(val: &T) { [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `trait_as_param4` [INFO] [stdout] --> src/trait0.rs:67:4 [INFO] [stdout] | [INFO] [stdout] 67 | fn trait_as_param4(val: &T) [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `note` [INFO] [stdout] --> src/lifetime0.rs:5:4 [INFO] [stdout] | [INFO] [stdout] 5 | fn note() { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct is never constructed: `Tmp` [INFO] [stdout] --> src/lifetime0.rs:8:8 [INFO] [stdout] | [INFO] [stdout] 8 | struct Tmp<'a, T> { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `test_lifetime` [INFO] [stdout] --> src/lifetime0.rs:15:8 [INFO] [stdout] | [INFO] [stdout] 15 | pub fn test_lifetime() { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `choose_longest_str` [INFO] [stdout] --> src/lifetime0.rs:52:4 [INFO] [stdout] | [INFO] [stdout] 52 | fn choose_longest_str<'a>(s1: &'a str, s2: &'a str) -> &'a str { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `rule_one` [INFO] [stdout] --> src/lifetime0.rs:61:4 [INFO] [stdout] | [INFO] [stdout] 61 | fn rule_one<'a, 'b, 'c>(x: &'a i32, y: &'b String, z: &'c str) { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `rule_two` [INFO] [stdout] --> src/lifetime0.rs:65:4 [INFO] [stdout] | [INFO] [stdout] 65 | fn rule_two<'a, T>(x: &'a T) -> &T { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `rule_three` [INFO] [stdout] --> src/lifetime0.rs:71:8 [INFO] [stdout] | [INFO] [stdout] 71 | fn rule_three(&self) -> &T { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `test_closure` [INFO] [stdout] --> src/function.rs:8:8 [INFO] [stdout] | [INFO] [stdout] 8 | pub fn test_closure() { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct is never constructed: `Cache` [INFO] [stdout] --> src/function.rs:69:8 [INFO] [stdout] | [INFO] [stdout] 69 | struct Cache where T: (Fn(i32, i32) -> i32) { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `new` [INFO] [stdout] --> src/function.rs:75:8 [INFO] [stdout] | [INFO] [stdout] 75 | fn new(closure0: T) -> Cache { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `value` [INFO] [stdout] --> src/function.rs:82:8 [INFO] [stdout] | [INFO] [stdout] 82 | fn value(&mut self, x: i32, y: i32) -> &i32 { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `size` [INFO] [stdout] --> src/function.rs:89:8 [INFO] [stdout] | [INFO] [stdout] 89 | fn size(&self) -> usize { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `test_iterator` [INFO] [stdout] --> src/iterator.rs:21:8 [INFO] [stdout] | [INFO] [stdout] 21 | pub fn test_iterator() { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct is never constructed: `Node` [INFO] [stdout] --> src/pointer.rs:5:8 [INFO] [stdout] | [INFO] [stdout] 5 | struct Node { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct is never constructed: `List` [INFO] [stdout] --> src/pointer.rs:10:8 [INFO] [stdout] | [INFO] [stdout] 10 | struct List { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct is never constructed: `Tmp` [INFO] [stdout] --> src/pointer.rs:17:8 [INFO] [stdout] | [INFO] [stdout] 17 | struct Tmp { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `new` [INFO] [stdout] --> src/pointer.rs:27:8 [INFO] [stdout] | [INFO] [stdout] 27 | fn new(v: T) -> MyBox { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `test_box` [INFO] [stdout] --> src/pointer.rs:51:8 [INFO] [stdout] | [INFO] [stdout] 51 | pub fn test_box() { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct is never constructed: `Tmp1` [INFO] [stdout] --> src/pointer.rs:61:8 [INFO] [stdout] | [INFO] [stdout] 61 | struct Tmp1 { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct is never constructed: `Tmp2` [INFO] [stdout] --> src/pointer.rs:65:8 [INFO] [stdout] | [INFO] [stdout] 65 | struct Tmp2 { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct is never constructed: `Tmp3` [INFO] [stdout] --> src/pointer.rs:69:8 [INFO] [stdout] | [INFO] [stdout] 69 | struct Tmp3 { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct is never constructed: `Tmp4` [INFO] [stdout] --> src/pointer.rs:73:8 [INFO] [stdout] | [INFO] [stdout] 73 | struct Tmp4 { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct is never constructed: `Tmp5` [INFO] [stdout] --> src/pointer.rs:77:8 [INFO] [stdout] | [INFO] [stdout] 77 | struct Tmp5 { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct is never constructed: `MutRef` [INFO] [stdout] --> src/pointer.rs:81:8 [INFO] [stdout] | [INFO] [stdout] 81 | struct MutRef { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `add` [INFO] [stdout] --> src/pointer.rs:86:8 [INFO] [stdout] | [INFO] [stdout] 86 | fn add(&self, v: T) { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `test_deref` [INFO] [stdout] --> src/pointer.rs:92:8 [INFO] [stdout] | [INFO] [stdout] 92 | pub fn test_deref() { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `test_thread` [INFO] [stdout] --> src/thread0.rs:13:8 [INFO] [stdout] | [INFO] [stdout] 13 | pub fn test_thread() { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `test` [INFO] [stdout] --> src/test.rs:3:8 [INFO] [stdout] | [INFO] [stdout] 3 | pub fn test() { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `test_oop` [INFO] [stdout] --> src/oop.rs:31:8 [INFO] [stdout] | [INFO] [stdout] 31 | pub fn test_oop() { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `design_mode_note` [INFO] [stdout] --> src/design_mode.rs:6:8 [INFO] [stdout] | [INFO] [stdout] 6 | pub fn design_mode_note() { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `nums` [INFO] [stdout] --> src/unsafe0.rs:15:5 [INFO] [stdout] | [INFO] [stdout] 15 | nums: Vec, [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `increment` [INFO] [stdout] --> src/unsafe0.rs:19:11 [INFO] [stdout] | [INFO] [stdout] 19 | unsafe fn increment(ptr: *mut i32) { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: static is never used: `COUNT` [INFO] [stdout] --> src/unsafe0.rs:23:1 [INFO] [stdout] | [INFO] [stdout] 23 | static mut COUNT: i32 = 0; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `f1` [INFO] [stdout] --> src/unsafe0.rs:89:4 [INFO] [stdout] | [INFO] [stdout] 89 | fn f1(t: T) {} [INFO] [stdout] | ^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `f2` [INFO] [stdout] --> src/unsafe0.rs:92:4 [INFO] [stdout] | [INFO] [stdout] 92 | fn f2(t: &T) {} [INFO] [stdout] | ^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `inc` [INFO] [stdout] --> src/unsafe0.rs:94:4 [INFO] [stdout] | [INFO] [stdout] 94 | fn inc(a: i32, b: i32) -> i32 { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `add_twice` [INFO] [stdout] --> src/unsafe0.rs:100:4 [INFO] [stdout] | [INFO] [stdout] 100 | fn add_twice(func: fn(i32, i32) -> i32, val: i32) -> i32 { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `closure_ret` [INFO] [stdout] --> src/unsafe0.rs:107:4 [INFO] [stdout] | [INFO] [stdout] 107 | fn closure_ret() -> Box i32> { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `func_ret` [INFO] [stdout] --> src/unsafe0.rs:112:4 [INFO] [stdout] | [INFO] [stdout] 112 | fn func_ret() -> fn(i32) -> i32 { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `test_unsafe` [INFO] [stdout] --> src/unsafe0.rs:126:8 [INFO] [stdout] | [INFO] [stdout] 126 | pub fn test_unsafe() { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `thread_num` [INFO] [stdout] --> src/lite_web.rs:10:5 [INFO] [stdout] | [INFO] [stdout] 10 | thread_num: u32, [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `worker_list` [INFO] [stdout] --> src/lite_web.rs:11:5 [INFO] [stdout] | [INFO] [stdout] 11 | worker_list: Vec, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `id` [INFO] [stdout] --> src/lite_web.rs:47:5 [INFO] [stdout] | [INFO] [stdout] 47 | id: String, [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `thread_handle` [INFO] [stdout] --> src/lite_web.rs:48:5 [INFO] [stdout] | [INFO] [stdout] 48 | thread_handle: JoinHandle<()>, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/thread0.rs:17:5 [INFO] [stdout] | [INFO] [stdout] 17 | handle1.join(); [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/thread0.rs:25:5 [INFO] [stdout] | [INFO] [stdout] 25 | handle2.join(); [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/thread0.rs:33:13 [INFO] [stdout] | [INFO] [stdout] 33 | producer.send(str); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/thread0.rs:42:5 [INFO] [stdout] | [INFO] [stdout] 42 | handle3.join(); [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/thread0.rs:60:9 [INFO] [stdout] | [INFO] [stdout] 60 | handle.join(); [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/unsafe0.rs:156:5 [INFO] [stdout] | [INFO] [stdout] 156 | handle1.join(); [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/lite_web.rs:35:9 [INFO] [stdout] | [INFO] [stdout] 35 | self.sender.send(Box::new(job)); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/lite_web.rs:99:25 [INFO] [stdout] | [INFO] [stdout] 99 | socket.write(resp.as_bytes()); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/lite_web.rs:100:25 [INFO] [stdout] | [INFO] [stdout] 100 | socket.flush(); [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/lite_web.rs:137:17 [INFO] [stdout] | [INFO] [stdout] 137 | socket.write(req.as_slice()); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/lite_web.rs:138:17 [INFO] [stdout] | [INFO] [stdout] 138 | socket.flush(); [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 157 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 10.21s [INFO] running `Command { std: "docker" "inspect" "fabcac5c48871e469fc8bf05722dfa2c6fa6854d641dc3120963a82d009f1f21", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "fabcac5c48871e469fc8bf05722dfa2c6fa6854d641dc3120963a82d009f1f21", kill_on_drop: false }` [INFO] [stdout] fabcac5c48871e469fc8bf05722dfa2c6fa6854d641dc3120963a82d009f1f21 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] e048e14b2bb44b602809e758a5ae117f2a20c7105d1172d3f4a5b277ee97b06b [INFO] running `Command { std: "docker" "start" "-a" "e048e14b2bb44b602809e758a5ae117f2a20c7105d1172d3f4a5b277ee97b06b", kill_on_drop: false }` [INFO] [stderr] Compiling rust-base-learn v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `std::thread` [INFO] [stdout] --> src/function.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 2 | 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::borrow::Borrow` [INFO] [stdout] --> src/thread0.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 5 | use std::borrow::Borrow; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::thread::spawn` [INFO] [stdout] --> src/test.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::thread::spawn; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] help: consider adding a `#[cfg(test)]` to the containing module [INFO] [stdout] --> src/main.rs:14:1 [INFO] [stdout] | [INFO] [stdout] 14 | mod test; [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::time::*` [INFO] [stdout] --> src/oop.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::time::*; [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `chrono::Local` [INFO] [stdout] --> src/oop.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 2 | use chrono::Local; [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `Add`, `Deref` [INFO] [stdout] --> src/unsafe0.rs:1:16 [INFO] [stdout] | [INFO] [stdout] 1 | use std::ops::{Add, Deref}; [INFO] [stdout] | ^^^ ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::ptr::drop_in_place` [INFO] [stdout] --> src/unsafe0.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 2 | use std::ptr::drop_in_place; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary trailing semicolon [INFO] [stdout] --> src/unsafe0.rs:115:6 [INFO] [stdout] | [INFO] [stdout] 115 | }; [INFO] [stdout] | ^ help: remove this semicolon [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(redundant_semicolons)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::io` [INFO] [stdout] --> src/main.rs:20:5 [INFO] [stdout] | [INFO] [stdout] 20 | use std::io; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `crate::struct0::*` [INFO] [stdout] --> src/main.rs:26:5 [INFO] [stdout] | [INFO] [stdout] 26 | use crate::struct0::*; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `crate::test::test` [INFO] [stdout] --> src/main.rs:35:5 [INFO] [stdout] | [INFO] [stdout] 35 | use crate::test::test; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `crate::unsafe0::*` [INFO] [stdout] --> src/main.rs:38:5 [INFO] [stdout] | [INFO] [stdout] 38 | use crate::unsafe0::*; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::collections::HashMap` [INFO] [stdout] --> src/main.rs:40:5 [INFO] [stdout] | [INFO] [stdout] 40 | use std::collections::HashMap; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::thread` [INFO] [stdout] --> src/main.rs:41:5 [INFO] [stdout] | [INFO] [stdout] 41 | use std::thread; [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::time::Duration` [INFO] [stdout] --> src/main.rs:42:5 [INFO] [stdout] | [INFO] [stdout] 42 | use std::time::Duration; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `var1` [INFO] [stdout] --> src/base.rs:3:9 [INFO] [stdout] | [INFO] [stdout] 3 | let var1 = 10; [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_var1` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `var2` [INFO] [stdout] --> src/base.rs:5:9 [INFO] [stdout] | [INFO] [stdout] 5 | let var2 :i64 = 20; [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_var2` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `var3` is assigned to, but never used [INFO] [stdout] --> src/base.rs:7:13 [INFO] [stdout] | [INFO] [stdout] 7 | let mut var3 = 15; [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: consider using `_var3` instead [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `var3` is never read [INFO] [stdout] --> src/base.rs:8:5 [INFO] [stdout] | [INFO] [stdout] 8 | var3 = 25; [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: `var1` [INFO] [stdout] --> src/base.rs:10:9 [INFO] [stdout] | [INFO] [stdout] 10 | let var1 = "str1"; [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_var1` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `var4` [INFO] [stdout] --> src/base.rs:13:9 [INFO] [stdout] | [INFO] [stdout] 13 | let var4 = 1.0; [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_var4` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `var5` [INFO] [stdout] --> src/base.rs:14:9 [INFO] [stdout] | [INFO] [stdout] 14 | let var5 = true; [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_var5` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `var6` [INFO] [stdout] --> src/base.rs:16:9 [INFO] [stdout] | [INFO] [stdout] 16 | let var6 = '😊'; [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_var6` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `tup1` [INFO] [stdout] --> src/base.rs:18:9 [INFO] [stdout] | [INFO] [stdout] 18 | let tup1 = (1, 2, 3); [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_tup1` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `tup2` [INFO] [stdout] --> src/base.rs:20:9 [INFO] [stdout] | [INFO] [stdout] 20 | let tup2 = (1, 2.0, false); [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_tup2` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `arr1` [INFO] [stdout] --> src/base.rs:22:9 [INFO] [stdout] | [INFO] [stdout] 22 | let arr1 = [1, 2, 3]; [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_arr1` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `str` [INFO] [stdout] --> src/ownership.rs:2:23 [INFO] [stdout] | [INFO] [stdout] 2 | pub fn move_ownership(str : String) { [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_str` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `str` [INFO] [stdout] --> src/ownership.rs:13:28 [INFO] [stdout] | [INFO] [stdout] 13 | pub fn reference_ownership(str : &String) { [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_str` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `s1` [INFO] [stdout] --> src/string0.rs:5:9 [INFO] [stdout] | [INFO] [stdout] 5 | let s1 = "aaa".to_string(); [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_s1` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `s2` [INFO] [stdout] --> src/string0.rs:6:9 [INFO] [stdout] | [INFO] [stdout] 6 | let s2 = String::from("aaa"); [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_s2` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `all` [INFO] [stdout] --> src/lifetime0.rs:35:9 [INFO] [stdout] | [INFO] [stdout] 35 | let all: &'static str = "static"; [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_all` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `x` [INFO] [stdout] --> src/lifetime0.rs:61:25 [INFO] [stdout] | [INFO] [stdout] 61 | fn rule_one<'a, 'b, 'c>(x: &'a i32, y: &'b String, z: &'c str) { [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/lifetime0.rs:61:37 [INFO] [stdout] | [INFO] [stdout] 61 | fn rule_one<'a, 'b, 'c>(x: &'a i32, y: &'b String, z: &'c str) { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_y` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `z` [INFO] [stdout] --> src/lifetime0.rs:61:52 [INFO] [stdout] | [INFO] [stdout] 61 | fn rule_one<'a, 'b, 'c>(x: &'a i32, y: &'b String, z: &'c str) { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_z` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `tmp2` [INFO] [stdout] --> src/pointer.rs:119:9 [INFO] [stdout] | [INFO] [stdout] 119 | let tmp2 = Tmp2 { [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_tmp2` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `tmp3` [INFO] [stdout] --> src/pointer.rs:122:9 [INFO] [stdout] | [INFO] [stdout] 122 | let tmp3 = Tmp3 { [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_tmp3` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `tmp4` [INFO] [stdout] --> src/pointer.rs:127:9 [INFO] [stdout] | [INFO] [stdout] 127 | let tmp4 = Tmp4 { [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_tmp4` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `tmp5` [INFO] [stdout] --> src/pointer.rs:131:13 [INFO] [stdout] | [INFO] [stdout] 131 | let tmp5 = Tmp5 { [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_tmp5` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `i` [INFO] [stdout] --> src/thread0.rs:50:9 [INFO] [stdout] | [INFO] [stdout] 50 | for i in 0..5 { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `a` [INFO] [stdout] --> src/design_mode.rs:7:9 [INFO] [stdout] | [INFO] [stdout] 7 | let a = Some(12); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_a` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `x` [INFO] [stdout] --> src/design_mode.rs:10:17 [INFO] [stdout] | [INFO] [stdout] 10 | if let Some(x) = b { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_x` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `t` [INFO] [stdout] --> src/unsafe0.rs:89:10 [INFO] [stdout] | [INFO] [stdout] 89 | fn f1(t: T) {} [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_t` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `t` [INFO] [stdout] --> src/unsafe0.rs:92:18 [INFO] [stdout] | [INFO] [stdout] 92 | fn f2(t: &T) {} [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_t` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `i` [INFO] [stdout] --> src/unsafe0.rs:150:17 [INFO] [stdout] | [INFO] [stdout] 150 | for i in 0..10 { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `c` is assigned to, but never used [INFO] [stdout] --> src/unsafe0.rs:176:9 [INFO] [stdout] | [INFO] [stdout] 176 | let c: &Complex; [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] = note: consider using `_c` instead [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `c` is never read [INFO] [stdout] --> src/unsafe0.rs:177:5 [INFO] [stdout] | [INFO] [stdout] 177 | c = &Complex { [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `size` [INFO] [stdout] --> src/lite_web.rs:87:24 [INFO] [stdout] | [INFO] [stdout] 87 | Ok(size) => { [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_size` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `i` [INFO] [stdout] --> src/lite_web.rs:93:29 [INFO] [stdout] | [INFO] [stdout] 93 | for i in 0..len { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `err` [INFO] [stdout] --> src/lite_web.rs:102:25 [INFO] [stdout] | [INFO] [stdout] 102 | Err(err) => { [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_err` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `handle` [INFO] [stdout] --> src/lite_web.rs:122:13 [INFO] [stdout] | [INFO] [stdout] 122 | let handle = spawn(move || { [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_handle` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/vector.rs:2:9 [INFO] [stdout] | [INFO] [stdout] 2 | let mut vec1 = vec![1, 2, 3]; [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/pointer.rs:140:9 [INFO] [stdout] | [INFO] [stdout] 140 | let mut mr1 = MutRef { [INFO] [stdout] | ----^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `chap1_3` [INFO] [stdout] --> src/main.rs:48:4 [INFO] [stdout] | [INFO] [stdout] 48 | fn chap1_3() { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `chap4` [INFO] [stdout] --> src/main.rs:54:4 [INFO] [stdout] | [INFO] [stdout] 54 | fn chap4() { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `chap5` [INFO] [stdout] --> src/main.rs:71:4 [INFO] [stdout] | [INFO] [stdout] 71 | fn chap5() { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `chap6` [INFO] [stdout] --> src/main.rs:80:4 [INFO] [stdout] | [INFO] [stdout] 80 | fn chap6() { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `chap8` [INFO] [stdout] --> src/main.rs:93:4 [INFO] [stdout] | [INFO] [stdout] 93 | fn chap8() { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `chap9` [INFO] [stdout] --> src/main.rs:98:4 [INFO] [stdout] | [INFO] [stdout] 98 | fn chap9() { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `chap13` [INFO] [stdout] --> src/main.rs:104:4 [INFO] [stdout] | [INFO] [stdout] 104 | fn chap13() { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `chap15` [INFO] [stdout] --> src/main.rs:109:4 [INFO] [stdout] | [INFO] [stdout] 109 | fn chap15() { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `chap16` [INFO] [stdout] --> src/main.rs:114:4 [INFO] [stdout] | [INFO] [stdout] 114 | fn chap16() { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `chap17` [INFO] [stdout] --> src/main.rs:118:4 [INFO] [stdout] | [INFO] [stdout] 118 | fn chap17() { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `chap18` [INFO] [stdout] --> src/main.rs:122:4 [INFO] [stdout] | [INFO] [stdout] 122 | fn chap18() { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `var` [INFO] [stdout] --> src/base.rs:1:8 [INFO] [stdout] | [INFO] [stdout] 1 | pub fn var() { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `add` [INFO] [stdout] --> src/base.rs:25:8 [INFO] [stdout] | [INFO] [stdout] 25 | pub fn add(x :i32, y :i32) -> i32 { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `control` [INFO] [stdout] --> src/base.rs:32:8 [INFO] [stdout] | [INFO] [stdout] 32 | pub fn control() { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `move_ownership` [INFO] [stdout] --> src/ownership.rs:2:8 [INFO] [stdout] | [INFO] [stdout] 2 | pub fn move_ownership(str : String) { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `move_ownership_and_giveback` [INFO] [stdout] --> src/ownership.rs:7:8 [INFO] [stdout] | [INFO] [stdout] 7 | pub fn move_ownership_and_giveback(str : String) -> String { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `reference_ownership` [INFO] [stdout] --> src/ownership.rs:13:8 [INFO] [stdout] | [INFO] [stdout] 13 | pub fn reference_ownership(str : &String) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `reference_ownership_mut` [INFO] [stdout] --> src/ownership.rs:18:8 [INFO] [stdout] | [INFO] [stdout] 18 | pub fn reference_ownership_mut(str : &mut String) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `note_chap4` [INFO] [stdout] --> src/ownership.rs:24:8 [INFO] [stdout] | [INFO] [stdout] 24 | pub fn note_chap4() { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `sub_str` [INFO] [stdout] --> src/ownership.rs:30:8 [INFO] [stdout] | [INFO] [stdout] 30 | pub fn sub_str(str : &String, mut from : usize, mut to : usize) -> &str { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct is never constructed: `Phone` [INFO] [stdout] --> src/struct0.rs:1:12 [INFO] [stdout] | [INFO] [stdout] 1 | pub struct Phone { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `display` [INFO] [stdout] --> src/struct0.rs:12:12 [INFO] [stdout] | [INFO] [stdout] 12 | pub fn display(&self) { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `default` [INFO] [stdout] --> src/struct0.rs:17:12 [INFO] [stdout] | [INFO] [stdout] 17 | pub fn default() -> Phone { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct is never constructed: `PhoneTuple` [INFO] [stdout] --> src/struct0.rs:28:12 [INFO] [stdout] | [INFO] [stdout] 28 | pub struct PhoneTuple(pub String, pub String, pub String, pub u64); [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `build_phone` [INFO] [stdout] --> src/struct0.rs:34:8 [INFO] [stdout] | [INFO] [stdout] 34 | pub fn build_phone(factory0: String, series0: String, seq_num0: String, id0: u64) -> Phone { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `build_phone_tuple` [INFO] [stdout] --> src/struct0.rs:44:8 [INFO] [stdout] | [INFO] [stdout] 44 | pub fn build_phone_tuple(factory0: String, series0: String, seq_num0: String, id0: u64) -> PhoneTuple { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum is never used: `Company` [INFO] [stdout] --> src/enum_match.rs:1:10 [INFO] [stdout] | [INFO] [stdout] 1 | pub enum Company { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum is never used: `MsgStatus` [INFO] [stdout] --> src/enum_match.rs:10:10 [INFO] [stdout] | [INFO] [stdout] 10 | pub enum MsgStatus { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `print` [INFO] [stdout] --> src/enum_match.rs:21:12 [INFO] [stdout] | [INFO] [stdout] 21 | pub fn print(&self) { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `value` [INFO] [stdout] --> src/enum_match.rs:26:12 [INFO] [stdout] | [INFO] [stdout] 26 | pub fn value(self) -> String { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `set_phone` [INFO] [stdout] --> src/enum_match.rs:38:8 [INFO] [stdout] | [INFO] [stdout] 38 | pub fn set_phone() { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `increment` [INFO] [stdout] --> src/enum_match.rs:43:8 [INFO] [stdout] | [INFO] [stdout] 43 | pub fn increment(op: Option) -> i32 { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `num_fmt` [INFO] [stdout] --> src/enum_match.rs:51:8 [INFO] [stdout] | [INFO] [stdout] 51 | pub fn num_fmt(val: i32) { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `only_one` [INFO] [stdout] --> src/enum_match.rs:67:8 [INFO] [stdout] | [INFO] [stdout] 67 | pub fn only_one(op: Option) { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `just_display_vec` [INFO] [stdout] --> src/vector.rs:1:8 [INFO] [stdout] | [INFO] [stdout] 1 | pub fn just_display_vec() { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum is never used: `MultiHttpMsg` [INFO] [stdout] --> src/vector.rs:38:6 [INFO] [stdout] | [INFO] [stdout] 38 | enum MultiHttpMsg { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `to_string` [INFO] [stdout] --> src/vector.rs:46:8 [INFO] [stdout] | [INFO] [stdout] 46 | fn to_string(self) -> String { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `test_string` [INFO] [stdout] --> src/string0.rs:3:8 [INFO] [stdout] | [INFO] [stdout] 3 | pub fn test_string() { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `f` [INFO] [stdout] --> src/string0.rs:34:4 [INFO] [stdout] | [INFO] [stdout] 34 | fn f(s: &String) -> &str { [INFO] [stdout] | ^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct is never constructed: `DoubleVal` [INFO] [stdout] --> src/generic.rs:1:12 [INFO] [stdout] | [INFO] [stdout] 1 | pub struct DoubleVal { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `x` [INFO] [stdout] --> src/generic.rs:7:8 [INFO] [stdout] | [INFO] [stdout] 7 | fn x(&self) -> &T { [INFO] [stdout] | ^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `y` [INFO] [stdout] --> src/generic.rs:11:8 [INFO] [stdout] | [INFO] [stdout] 11 | fn y(&self) -> &U { [INFO] [stdout] | ^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `swap` [INFO] [stdout] --> src/generic.rs:16:8 [INFO] [stdout] | [INFO] [stdout] 16 | fn swap(self, val: DoubleVal) -> DoubleVal { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `sum` [INFO] [stdout] --> src/generic.rs:26:8 [INFO] [stdout] | [INFO] [stdout] 26 | fn sum(&self) -> i32 { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `test_double_val` [INFO] [stdout] --> src/generic.rs:31:8 [INFO] [stdout] | [INFO] [stdout] 31 | pub fn test_double_val() { [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `test_trait` [INFO] [stdout] --> src/trait0.rs:41:8 [INFO] [stdout] | [INFO] [stdout] 41 | pub fn test_trait() { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `trait_as_param1` [INFO] [stdout] --> src/trait0.rs:54:4 [INFO] [stdout] | [INFO] [stdout] 54 | fn trait_as_param1(val: &impl Info) { [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `trait_as_param2` [INFO] [stdout] --> src/trait0.rs:58:4 [INFO] [stdout] | [INFO] [stdout] 58 | fn trait_as_param2(val: &T) { [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `trait_as_param3` [INFO] [stdout] --> src/trait0.rs:62:4 [INFO] [stdout] | [INFO] [stdout] 62 | fn trait_as_param3(val: &T) { [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `trait_as_param4` [INFO] [stdout] --> src/trait0.rs:67:4 [INFO] [stdout] | [INFO] [stdout] 67 | fn trait_as_param4(val: &T) [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `note` [INFO] [stdout] --> src/lifetime0.rs:5:4 [INFO] [stdout] | [INFO] [stdout] 5 | fn note() { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct is never constructed: `Tmp` [INFO] [stdout] --> src/lifetime0.rs:8:8 [INFO] [stdout] | [INFO] [stdout] 8 | struct Tmp<'a, T> { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `test_lifetime` [INFO] [stdout] --> src/lifetime0.rs:15:8 [INFO] [stdout] | [INFO] [stdout] 15 | pub fn test_lifetime() { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `choose_longest_str` [INFO] [stdout] --> src/lifetime0.rs:52:4 [INFO] [stdout] | [INFO] [stdout] 52 | fn choose_longest_str<'a>(s1: &'a str, s2: &'a str) -> &'a str { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `rule_one` [INFO] [stdout] --> src/lifetime0.rs:61:4 [INFO] [stdout] | [INFO] [stdout] 61 | fn rule_one<'a, 'b, 'c>(x: &'a i32, y: &'b String, z: &'c str) { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `rule_two` [INFO] [stdout] --> src/lifetime0.rs:65:4 [INFO] [stdout] | [INFO] [stdout] 65 | fn rule_two<'a, T>(x: &'a T) -> &T { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `rule_three` [INFO] [stdout] --> src/lifetime0.rs:71:8 [INFO] [stdout] | [INFO] [stdout] 71 | fn rule_three(&self) -> &T { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `test_closure` [INFO] [stdout] --> src/function.rs:8:8 [INFO] [stdout] | [INFO] [stdout] 8 | pub fn test_closure() { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct is never constructed: `Cache` [INFO] [stdout] --> src/function.rs:69:8 [INFO] [stdout] | [INFO] [stdout] 69 | struct Cache where T: (Fn(i32, i32) -> i32) { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `new` [INFO] [stdout] --> src/function.rs:75:8 [INFO] [stdout] | [INFO] [stdout] 75 | fn new(closure0: T) -> Cache { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `value` [INFO] [stdout] --> src/function.rs:82:8 [INFO] [stdout] | [INFO] [stdout] 82 | fn value(&mut self, x: i32, y: i32) -> &i32 { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `size` [INFO] [stdout] --> src/function.rs:89:8 [INFO] [stdout] | [INFO] [stdout] 89 | fn size(&self) -> usize { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `test_iterator` [INFO] [stdout] --> src/iterator.rs:21:8 [INFO] [stdout] | [INFO] [stdout] 21 | pub fn test_iterator() { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct is never constructed: `Node` [INFO] [stdout] --> src/pointer.rs:5:8 [INFO] [stdout] | [INFO] [stdout] 5 | struct Node { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct is never constructed: `List` [INFO] [stdout] --> src/pointer.rs:10:8 [INFO] [stdout] | [INFO] [stdout] 10 | struct List { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct is never constructed: `Tmp` [INFO] [stdout] --> src/pointer.rs:17:8 [INFO] [stdout] | [INFO] [stdout] 17 | struct Tmp { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `new` [INFO] [stdout] --> src/pointer.rs:27:8 [INFO] [stdout] | [INFO] [stdout] 27 | fn new(v: T) -> MyBox { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `test_box` [INFO] [stdout] --> src/pointer.rs:51:8 [INFO] [stdout] | [INFO] [stdout] 51 | pub fn test_box() { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct is never constructed: `Tmp1` [INFO] [stdout] --> src/pointer.rs:61:8 [INFO] [stdout] | [INFO] [stdout] 61 | struct Tmp1 { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct is never constructed: `Tmp2` [INFO] [stdout] --> src/pointer.rs:65:8 [INFO] [stdout] | [INFO] [stdout] 65 | struct Tmp2 { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct is never constructed: `Tmp3` [INFO] [stdout] --> src/pointer.rs:69:8 [INFO] [stdout] | [INFO] [stdout] 69 | struct Tmp3 { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct is never constructed: `Tmp4` [INFO] [stdout] --> src/pointer.rs:73:8 [INFO] [stdout] | [INFO] [stdout] 73 | struct Tmp4 { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct is never constructed: `Tmp5` [INFO] [stdout] --> src/pointer.rs:77:8 [INFO] [stdout] | [INFO] [stdout] 77 | struct Tmp5 { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct is never constructed: `MutRef` [INFO] [stdout] --> src/pointer.rs:81:8 [INFO] [stdout] | [INFO] [stdout] 81 | struct MutRef { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `add` [INFO] [stdout] --> src/pointer.rs:86:8 [INFO] [stdout] | [INFO] [stdout] 86 | fn add(&self, v: T) { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `test_deref` [INFO] [stdout] --> src/pointer.rs:92:8 [INFO] [stdout] | [INFO] [stdout] 92 | pub fn test_deref() { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `test_thread` [INFO] [stdout] --> src/thread0.rs:13:8 [INFO] [stdout] | [INFO] [stdout] 13 | pub fn test_thread() { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `test` [INFO] [stdout] --> src/test.rs:3:8 [INFO] [stdout] | [INFO] [stdout] 3 | pub fn test() { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `test_oop` [INFO] [stdout] --> src/oop.rs:31:8 [INFO] [stdout] | [INFO] [stdout] 31 | pub fn test_oop() { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `design_mode_note` [INFO] [stdout] --> src/design_mode.rs:6:8 [INFO] [stdout] | [INFO] [stdout] 6 | pub fn design_mode_note() { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `nums` [INFO] [stdout] --> src/unsafe0.rs:15:5 [INFO] [stdout] | [INFO] [stdout] 15 | nums: Vec, [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `increment` [INFO] [stdout] --> src/unsafe0.rs:19:11 [INFO] [stdout] | [INFO] [stdout] 19 | unsafe fn increment(ptr: *mut i32) { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: static is never used: `COUNT` [INFO] [stdout] --> src/unsafe0.rs:23:1 [INFO] [stdout] | [INFO] [stdout] 23 | static mut COUNT: i32 = 0; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `f1` [INFO] [stdout] --> src/unsafe0.rs:89:4 [INFO] [stdout] | [INFO] [stdout] 89 | fn f1(t: T) {} [INFO] [stdout] | ^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `f2` [INFO] [stdout] --> src/unsafe0.rs:92:4 [INFO] [stdout] | [INFO] [stdout] 92 | fn f2(t: &T) {} [INFO] [stdout] | ^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `inc` [INFO] [stdout] --> src/unsafe0.rs:94:4 [INFO] [stdout] | [INFO] [stdout] 94 | fn inc(a: i32, b: i32) -> i32 { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `add_twice` [INFO] [stdout] --> src/unsafe0.rs:100:4 [INFO] [stdout] | [INFO] [stdout] 100 | fn add_twice(func: fn(i32, i32) -> i32, val: i32) -> i32 { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `closure_ret` [INFO] [stdout] --> src/unsafe0.rs:107:4 [INFO] [stdout] | [INFO] [stdout] 107 | fn closure_ret() -> Box i32> { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `func_ret` [INFO] [stdout] --> src/unsafe0.rs:112:4 [INFO] [stdout] | [INFO] [stdout] 112 | fn func_ret() -> fn(i32) -> i32 { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `test_unsafe` [INFO] [stdout] --> src/unsafe0.rs:126:8 [INFO] [stdout] | [INFO] [stdout] 126 | pub fn test_unsafe() { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `thread_num` [INFO] [stdout] --> src/lite_web.rs:10:5 [INFO] [stdout] | [INFO] [stdout] 10 | thread_num: u32, [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `worker_list` [INFO] [stdout] --> src/lite_web.rs:11:5 [INFO] [stdout] | [INFO] [stdout] 11 | worker_list: Vec, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `id` [INFO] [stdout] --> src/lite_web.rs:47:5 [INFO] [stdout] | [INFO] [stdout] 47 | id: String, [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `thread_handle` [INFO] [stdout] --> src/lite_web.rs:48:5 [INFO] [stdout] | [INFO] [stdout] 48 | thread_handle: JoinHandle<()>, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/thread0.rs:17:5 [INFO] [stdout] | [INFO] [stdout] 17 | handle1.join(); [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/thread0.rs:25:5 [INFO] [stdout] | [INFO] [stdout] 25 | handle2.join(); [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/thread0.rs:33:13 [INFO] [stdout] | [INFO] [stdout] 33 | producer.send(str); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/thread0.rs:42:5 [INFO] [stdout] | [INFO] [stdout] 42 | handle3.join(); [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/thread0.rs:60:9 [INFO] [stdout] | [INFO] [stdout] 60 | handle.join(); [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/unsafe0.rs:156:5 [INFO] [stdout] | [INFO] [stdout] 156 | handle1.join(); [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/lite_web.rs:35:9 [INFO] [stdout] | [INFO] [stdout] 35 | self.sender.send(Box::new(job)); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/lite_web.rs:99:25 [INFO] [stdout] | [INFO] [stdout] 99 | socket.write(resp.as_bytes()); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/lite_web.rs:100:25 [INFO] [stdout] | [INFO] [stdout] 100 | socket.flush(); [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/lite_web.rs:137:17 [INFO] [stdout] | [INFO] [stdout] 137 | socket.write(req.as_slice()); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/lite_web.rs:138:17 [INFO] [stdout] | [INFO] [stdout] 138 | socket.flush(); [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 157 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.47s [INFO] [stderr] Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/rust_base_learn-6c1e3e0cb3b8b3ab) [INFO] running `Command { std: "docker" "inspect" "e048e14b2bb44b602809e758a5ae117f2a20c7105d1172d3f4a5b277ee97b06b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e048e14b2bb44b602809e758a5ae117f2a20c7105d1172d3f4a5b277ee97b06b", kill_on_drop: false }` [INFO] [stdout] e048e14b2bb44b602809e758a5ae117f2a20c7105d1172d3f4a5b277ee97b06b [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 73cf60fc6ca13810ae731fb2fc5399f08f0e2b21985a927b1808a236e7b38968 [INFO] running `Command { std: "docker" "start" "-a" "73cf60fc6ca13810ae731fb2fc5399f08f0e2b21985a927b1808a236e7b38968", kill_on_drop: false }` [INFO] [stderr] warning: unused import: `std::thread` [INFO] [stderr] --> src/function.rs:2:5 [INFO] [stderr] | [INFO] [stderr] 2 | use std::thread; [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::borrow::Borrow` [INFO] [stderr] --> src/thread0.rs:5:5 [INFO] [stderr] | [INFO] [stderr] 5 | use std::borrow::Borrow; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::thread::spawn` [INFO] [stderr] --> src/test.rs:1:5 [INFO] [stderr] | [INFO] [stderr] 1 | use std::thread::spawn; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] help: consider adding a `#[cfg(test)]` to the containing module [INFO] [stderr] --> src/main.rs:14:1 [INFO] [stderr] | [INFO] [stderr] 14 | mod test; [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::time::*` [INFO] [stderr] --> src/oop.rs:1:5 [INFO] [stderr] | [INFO] [stderr] 1 | use std::time::*; [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `chrono::Local` [INFO] [stderr] --> src/oop.rs:2:5 [INFO] [stderr] | [INFO] [stderr] 2 | use chrono::Local; [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused imports: `Add`, `Deref` [INFO] [stderr] --> src/unsafe0.rs:1:16 [INFO] [stderr] | [INFO] [stderr] 1 | use std::ops::{Add, Deref}; [INFO] [stderr] | ^^^ ^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::ptr::drop_in_place` [INFO] [stderr] --> src/unsafe0.rs:2:5 [INFO] [stderr] | [INFO] [stderr] 2 | use std::ptr::drop_in_place; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unnecessary trailing semicolon [INFO] [stderr] --> src/unsafe0.rs:115:6 [INFO] [stderr] | [INFO] [stderr] 115 | }; [INFO] [stderr] | ^ help: remove this semicolon [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(redundant_semicolons)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::io` [INFO] [stderr] --> src/main.rs:20:5 [INFO] [stderr] | [INFO] [stderr] 20 | use std::io; [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `crate::struct0::*` [INFO] [stderr] --> src/main.rs:26:5 [INFO] [stderr] | [INFO] [stderr] 26 | use crate::struct0::*; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `crate::test::test` [INFO] [stderr] --> src/main.rs:35:5 [INFO] [stderr] | [INFO] [stderr] 35 | use crate::test::test; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `crate::unsafe0::*` [INFO] [stderr] --> src/main.rs:38:5 [INFO] [stderr] | [INFO] [stderr] 38 | use crate::unsafe0::*; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::collections::HashMap` [INFO] [stderr] --> src/main.rs:40:5 [INFO] [stderr] | [INFO] [stderr] 40 | use std::collections::HashMap; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::thread` [INFO] [stderr] --> src/main.rs:41:5 [INFO] [stderr] | [INFO] [stderr] 41 | use std::thread; [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::time::Duration` [INFO] [stderr] --> src/main.rs:42:5 [INFO] [stderr] | [INFO] [stderr] 42 | use std::time::Duration; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused variable: `var1` [INFO] [stderr] --> src/base.rs:3:9 [INFO] [stderr] | [INFO] [stderr] 3 | let var1 = 10; [INFO] [stderr] | ^^^^ help: if this is intentional, prefix it with an underscore: `_var1` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `var2` [INFO] [stderr] --> src/base.rs:5:9 [INFO] [stderr] | [INFO] [stderr] 5 | let var2 :i64 = 20; [INFO] [stderr] | ^^^^ help: if this is intentional, prefix it with an underscore: `_var2` [INFO] [stderr] [INFO] [stderr] warning: variable `var3` is assigned to, but never used [INFO] [stderr] --> src/base.rs:7:13 [INFO] [stderr] | [INFO] [stderr] 7 | let mut var3 = 15; [INFO] [stderr] | ^^^^ [INFO] [stderr] | [INFO] [stderr] = note: consider using `_var3` instead [INFO] [stderr] [INFO] [stderr] warning: value assigned to `var3` is never read [INFO] [stderr] --> src/base.rs:8:5 [INFO] [stderr] | [INFO] [stderr] 8 | var3 = 25; [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: `var1` [INFO] [stderr] --> src/base.rs:10:9 [INFO] [stderr] | [INFO] [stderr] 10 | let var1 = "str1"; [INFO] [stderr] | ^^^^ help: if this is intentional, prefix it with an underscore: `_var1` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `var4` [INFO] [stderr] --> src/base.rs:13:9 [INFO] [stderr] | [INFO] [stderr] 13 | let var4 = 1.0; [INFO] [stderr] | ^^^^ help: if this is intentional, prefix it with an underscore: `_var4` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `var5` [INFO] [stderr] --> src/base.rs:14:9 [INFO] [stderr] | [INFO] [stderr] 14 | let var5 = true; [INFO] [stderr] | ^^^^ help: if this is intentional, prefix it with an underscore: `_var5` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `var6` [INFO] [stderr] --> src/base.rs:16:9 [INFO] [stderr] | [INFO] [stderr] 16 | let var6 = '😊'; [INFO] [stderr] | ^^^^ help: if this is intentional, prefix it with an underscore: `_var6` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `tup1` [INFO] [stderr] --> src/base.rs:18:9 [INFO] [stderr] | [INFO] [stderr] 18 | let tup1 = (1, 2, 3); [INFO] [stderr] | ^^^^ help: if this is intentional, prefix it with an underscore: `_tup1` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `tup2` [INFO] [stderr] --> src/base.rs:20:9 [INFO] [stderr] | [INFO] [stderr] 20 | let tup2 = (1, 2.0, false); [INFO] [stderr] | ^^^^ help: if this is intentional, prefix it with an underscore: `_tup2` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `arr1` [INFO] [stderr] --> src/base.rs:22:9 [INFO] [stderr] | [INFO] [stderr] 22 | let arr1 = [1, 2, 3]; [INFO] [stderr] | ^^^^ help: if this is intentional, prefix it with an underscore: `_arr1` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `str` [INFO] [stderr] --> src/ownership.rs:2:23 [INFO] [stderr] | [INFO] [stderr] 2 | pub fn move_ownership(str : String) { [INFO] [stderr] | ^^^ help: if this is intentional, prefix it with an underscore: `_str` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `str` [INFO] [stderr] --> src/ownership.rs:13:28 [INFO] [stderr] | [INFO] [stderr] 13 | pub fn reference_ownership(str : &String) { [INFO] [stderr] | ^^^ help: if this is intentional, prefix it with an underscore: `_str` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `s1` [INFO] [stderr] --> src/string0.rs:5:9 [INFO] [stderr] | [INFO] [stderr] 5 | let s1 = "aaa".to_string(); [INFO] [stderr] | ^^ help: if this is intentional, prefix it with an underscore: `_s1` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `s2` [INFO] [stderr] --> src/string0.rs:6:9 [INFO] [stderr] | [INFO] [stderr] 6 | let s2 = String::from("aaa"); [INFO] [stderr] | ^^ help: if this is intentional, prefix it with an underscore: `_s2` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `all` [INFO] [stderr] --> src/lifetime0.rs:35:9 [INFO] [stderr] | [INFO] [stderr] 35 | let all: &'static str = "static"; [INFO] [stderr] | ^^^ help: if this is intentional, prefix it with an underscore: `_all` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `x` [INFO] [stderr] --> src/lifetime0.rs:61:25 [INFO] [stderr] | [INFO] [stderr] 61 | fn rule_one<'a, 'b, 'c>(x: &'a i32, y: &'b String, z: &'c str) { [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_x` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `y` [INFO] [stderr] --> src/lifetime0.rs:61:37 [INFO] [stderr] | [INFO] [stderr] 61 | fn rule_one<'a, 'b, 'c>(x: &'a i32, y: &'b String, z: &'c str) { [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_y` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `z` [INFO] [stderr] --> src/lifetime0.rs:61:52 [INFO] [stderr] | [INFO] [stderr] 61 | fn rule_one<'a, 'b, 'c>(x: &'a i32, y: &'b String, z: &'c str) { [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_z` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `tmp2` [INFO] [stderr] --> src/pointer.rs:119:9 [INFO] [stderr] | [INFO] [stderr] 119 | let tmp2 = Tmp2 { [INFO] [stderr] | ^^^^ help: if this is intentional, prefix it with an underscore: `_tmp2` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `tmp3` [INFO] [stderr] --> src/pointer.rs:122:9 [INFO] [stderr] | [INFO] [stderr] 122 | let tmp3 = Tmp3 { [INFO] [stderr] | ^^^^ help: if this is intentional, prefix it with an underscore: `_tmp3` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `tmp4` [INFO] [stderr] --> src/pointer.rs:127:9 [INFO] [stderr] | [INFO] [stderr] 127 | let tmp4 = Tmp4 { [INFO] [stderr] | ^^^^ help: if this is intentional, prefix it with an underscore: `_tmp4` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `tmp5` [INFO] [stderr] --> src/pointer.rs:131:13 [INFO] [stderr] | [INFO] [stderr] 131 | let tmp5 = Tmp5 { [INFO] [stderr] | ^^^^ help: if this is intentional, prefix it with an underscore: `_tmp5` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `i` [INFO] [stderr] --> src/thread0.rs:50:9 [INFO] [stderr] | [INFO] [stderr] 50 | for i in 0..5 { [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `a` [INFO] [stderr] --> src/design_mode.rs:7:9 [INFO] [stderr] | [INFO] [stderr] 7 | let a = Some(12); [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_a` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `x` [INFO] [stderr] --> src/design_mode.rs:10:17 [INFO] [stderr] | [INFO] [stderr] 10 | if let Some(x) = b { [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_x` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `t` [INFO] [stderr] --> src/unsafe0.rs:89:10 [INFO] [stderr] | [INFO] [stderr] 89 | fn f1(t: T) {} [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_t` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `t` [INFO] [stderr] --> src/unsafe0.rs:92:18 [INFO] [stderr] | [INFO] [stderr] 92 | fn f2(t: &T) {} [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_t` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `i` [INFO] [stderr] --> src/unsafe0.rs:150:17 [INFO] [stderr] | [INFO] [stderr] 150 | for i in 0..10 { [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stderr] [INFO] [stderr] warning: variable `c` is assigned to, but never used [INFO] [stderr] --> src/unsafe0.rs:176:9 [INFO] [stderr] | [INFO] [stderr] 176 | let c: &Complex; [INFO] [stderr] | ^ [INFO] [stderr] | [INFO] [stderr] = note: consider using `_c` instead [INFO] [stderr] [INFO] [stderr] warning: value assigned to `c` is never read [INFO] [stderr] --> src/unsafe0.rs:177:5 [INFO] [stderr] | [INFO] [stderr] 177 | c = &Complex { [INFO] [stderr] | ^ [INFO] [stderr] | [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: unused variable: `size` [INFO] [stderr] --> src/lite_web.rs:87:24 [INFO] [stderr] | [INFO] [stderr] 87 | Ok(size) => { [INFO] [stderr] | ^^^^ help: if this is intentional, prefix it with an underscore: `_size` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `i` [INFO] [stderr] --> src/lite_web.rs:93:29 [INFO] [stderr] | [INFO] [stderr] 93 | for i in 0..len { [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `err` [INFO] [stderr] --> src/lite_web.rs:102:25 [INFO] [stderr] | [INFO] [stderr] 102 | Err(err) => { [INFO] [stderr] | ^^^ help: if this is intentional, prefix it with an underscore: `_err` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `handle` [INFO] [stderr] --> src/lite_web.rs:122:13 [INFO] [stderr] | [INFO] [stderr] 122 | let handle = spawn(move || { [INFO] [stderr] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_handle` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/vector.rs:2:9 [INFO] [stderr] | [INFO] [stderr] 2 | let mut vec1 = vec![1, 2, 3]; [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/pointer.rs:140:9 [INFO] [stderr] | [INFO] [stderr] 140 | let mut mr1 = MutRef { [INFO] [stderr] | ----^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: function is never used: `chap1_3` [INFO] [stderr] --> src/main.rs:48:4 [INFO] [stderr] | [INFO] [stderr] 48 | fn chap1_3() { [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: function is never used: `chap4` [INFO] [stderr] --> src/main.rs:54:4 [INFO] [stderr] | [INFO] [stderr] 54 | fn chap4() { [INFO] [stderr] | ^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `chap5` [INFO] [stderr] --> src/main.rs:71:4 [INFO] [stderr] | [INFO] [stderr] 71 | fn chap5() { [INFO] [stderr] | ^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `chap6` [INFO] [stderr] --> src/main.rs:80:4 [INFO] [stderr] | [INFO] [stderr] 80 | fn chap6() { [INFO] [stderr] | ^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `chap8` [INFO] [stderr] --> src/main.rs:93:4 [INFO] [stderr] | [INFO] [stderr] 93 | fn chap8() { [INFO] [stderr] | ^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `chap9` [INFO] [stderr] --> src/main.rs:98:4 [INFO] [stderr] | [INFO] [stderr] 98 | fn chap9() { [INFO] [stderr] | ^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `chap13` [INFO] [stderr] --> src/main.rs:104:4 [INFO] [stderr] | [INFO] [stderr] 104 | fn chap13() { [INFO] [stderr] | ^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `chap15` [INFO] [stderr] --> src/main.rs:109:4 [INFO] [stderr] | [INFO] [stderr] 109 | fn chap15() { [INFO] [stderr] | ^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `chap16` [INFO] [stderr] --> src/main.rs:114:4 [INFO] [stderr] | [INFO] [stderr] 114 | fn chap16() { [INFO] [stderr] | ^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `chap17` [INFO] [stderr] --> src/main.rs:118:4 [INFO] [stderr] | [INFO] [stderr] 118 | fn chap17() { [INFO] [stderr] | ^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `chap18` [INFO] [stderr] --> src/main.rs:122:4 [INFO] [stderr] | [INFO] [stderr] 122 | fn chap18() { [INFO] [stderr] | ^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `var` [INFO] [stderr] --> src/base.rs:1:8 [INFO] [stderr] | [INFO] [stderr] 1 | pub fn var() { [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `add` [INFO] [stderr] --> src/base.rs:25:8 [INFO] [stderr] | [INFO] [stderr] 25 | pub fn add(x :i32, y :i32) -> i32 { [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `control` [INFO] [stderr] --> src/base.rs:32:8 [INFO] [stderr] | [INFO] [stderr] 32 | pub fn control() { [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `move_ownership` [INFO] [stderr] --> src/ownership.rs:2:8 [INFO] [stderr] | [INFO] [stderr] 2 | pub fn move_ownership(str : String) { [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `move_ownership_and_giveback` [INFO] [stderr] --> src/ownership.rs:7:8 [INFO] [stderr] | [INFO] [stderr] 7 | pub fn move_ownership_and_giveback(str : String) -> String { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `reference_ownership` [INFO] [stderr] --> src/ownership.rs:13:8 [INFO] [stderr] | [INFO] [stderr] 13 | pub fn reference_ownership(str : &String) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `reference_ownership_mut` [INFO] [stderr] --> src/ownership.rs:18:8 [INFO] [stderr] | [INFO] [stderr] 18 | pub fn reference_ownership_mut(str : &mut String) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `note_chap4` [INFO] [stderr] --> src/ownership.rs:24:8 [INFO] [stderr] | [INFO] [stderr] 24 | pub fn note_chap4() { [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `sub_str` [INFO] [stderr] --> src/ownership.rs:30:8 [INFO] [stderr] | [INFO] [stderr] 30 | pub fn sub_str(str : &String, mut from : usize, mut to : usize) -> &str { [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Phone` [INFO] [stderr] --> src/struct0.rs:1:12 [INFO] [stderr] | [INFO] [stderr] 1 | pub struct Phone { [INFO] [stderr] | ^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `display` [INFO] [stderr] --> src/struct0.rs:12:12 [INFO] [stderr] | [INFO] [stderr] 12 | pub fn display(&self) { [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `default` [INFO] [stderr] --> src/struct0.rs:17:12 [INFO] [stderr] | [INFO] [stderr] 17 | pub fn default() -> Phone { [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `PhoneTuple` [INFO] [stderr] --> src/struct0.rs:28:12 [INFO] [stderr] | [INFO] [stderr] 28 | pub struct PhoneTuple(pub String, pub String, pub String, pub u64); [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `build_phone` [INFO] [stderr] --> src/struct0.rs:34:8 [INFO] [stderr] | [INFO] [stderr] 34 | pub fn build_phone(factory0: String, series0: String, seq_num0: String, id0: u64) -> Phone { [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `build_phone_tuple` [INFO] [stderr] --> src/struct0.rs:44:8 [INFO] [stderr] | [INFO] [stderr] 44 | pub fn build_phone_tuple(factory0: String, series0: String, seq_num0: String, id0: u64) -> PhoneTuple { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: enum is never used: `Company` [INFO] [stderr] --> src/enum_match.rs:1:10 [INFO] [stderr] | [INFO] [stderr] 1 | pub enum Company { [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: enum is never used: `MsgStatus` [INFO] [stderr] --> src/enum_match.rs:10:10 [INFO] [stderr] | [INFO] [stderr] 10 | pub enum MsgStatus { [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `print` [INFO] [stderr] --> src/enum_match.rs:21:12 [INFO] [stderr] | [INFO] [stderr] 21 | pub fn print(&self) { [INFO] [stderr] | ^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `value` [INFO] [stderr] --> src/enum_match.rs:26:12 [INFO] [stderr] | [INFO] [stderr] 26 | pub fn value(self) -> String { [INFO] [stderr] | ^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `set_phone` [INFO] [stderr] --> src/enum_match.rs:38:8 [INFO] [stderr] | [INFO] [stderr] 38 | pub fn set_phone() { [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `increment` [INFO] [stderr] --> src/enum_match.rs:43:8 [INFO] [stderr] | [INFO] [stderr] 43 | pub fn increment(op: Option) -> i32 { [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `num_fmt` [INFO] [stderr] --> src/enum_match.rs:51:8 [INFO] [stderr] | [INFO] [stderr] 51 | pub fn num_fmt(val: i32) { [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `only_one` [INFO] [stderr] --> src/enum_match.rs:67:8 [INFO] [stderr] | [INFO] [stderr] 67 | pub fn only_one(op: Option) { [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `just_display_vec` [INFO] [stderr] --> src/vector.rs:1:8 [INFO] [stderr] | [INFO] [stderr] 1 | pub fn just_display_vec() { [INFO] [stderr] | ^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: enum is never used: `MultiHttpMsg` [INFO] [stderr] --> src/vector.rs:38:6 [INFO] [stderr] | [INFO] [stderr] 38 | enum MultiHttpMsg { [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `to_string` [INFO] [stderr] --> src/vector.rs:46:8 [INFO] [stderr] | [INFO] [stderr] 46 | fn to_string(self) -> String { [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `test_string` [INFO] [stderr] --> src/string0.rs:3:8 [INFO] [stderr] | [INFO] [stderr] 3 | pub fn test_string() { [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `f` [INFO] [stderr] --> src/string0.rs:34:4 [INFO] [stderr] | [INFO] [stderr] 34 | fn f(s: &String) -> &str { [INFO] [stderr] | ^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `DoubleVal` [INFO] [stderr] --> src/generic.rs:1:12 [INFO] [stderr] | [INFO] [stderr] 1 | pub struct DoubleVal { [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `x` [INFO] [stderr] --> src/generic.rs:7:8 [INFO] [stderr] | [INFO] [stderr] 7 | fn x(&self) -> &T { [INFO] [stderr] | ^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `y` [INFO] [stderr] --> src/generic.rs:11:8 [INFO] [stderr] | [INFO] [stderr] 11 | fn y(&self) -> &U { [INFO] [stderr] | ^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `swap` [INFO] [stderr] --> src/generic.rs:16:8 [INFO] [stderr] | [INFO] [stderr] 16 | fn swap(self, val: DoubleVal) -> DoubleVal { [INFO] [stderr] | ^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `sum` [INFO] [stderr] --> src/generic.rs:26:8 [INFO] [stderr] | [INFO] [stderr] 26 | fn sum(&self) -> i32 { [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `test_double_val` [INFO] [stderr] --> src/generic.rs:31:8 [INFO] [stderr] | [INFO] [stderr] 31 | pub fn test_double_val() { [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `test_trait` [INFO] [stderr] --> src/trait0.rs:41:8 [INFO] [stderr] | [INFO] [stderr] 41 | pub fn test_trait() { [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `trait_as_param1` [INFO] [stderr] --> src/trait0.rs:54:4 [INFO] [stderr] | [INFO] [stderr] 54 | fn trait_as_param1(val: &impl Info) { [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `trait_as_param2` [INFO] [stderr] --> src/trait0.rs:58:4 [INFO] [stderr] | [INFO] [stderr] 58 | fn trait_as_param2(val: &T) { [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `trait_as_param3` [INFO] [stderr] --> src/trait0.rs:62:4 [INFO] [stderr] | [INFO] [stderr] 62 | fn trait_as_param3(val: &T) { [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `trait_as_param4` [INFO] [stderr] --> src/trait0.rs:67:4 [INFO] [stderr] | [INFO] [stderr] 67 | fn trait_as_param4(val: &T) [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `note` [INFO] [stderr] --> src/lifetime0.rs:5:4 [INFO] [stderr] | [INFO] [stderr] 5 | fn note() { [INFO] [stderr] | ^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Tmp` [INFO] [stderr] --> src/lifetime0.rs:8:8 [INFO] [stderr] | [INFO] [stderr] 8 | struct Tmp<'a, T> { [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `test_lifetime` [INFO] [stderr] --> src/lifetime0.rs:15:8 [INFO] [stderr] | [INFO] [stderr] 15 | pub fn test_lifetime() { [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `choose_longest_str` [INFO] [stderr] --> src/lifetime0.rs:52:4 [INFO] [stderr] | [INFO] [stderr] 52 | fn choose_longest_str<'a>(s1: &'a str, s2: &'a str) -> &'a str { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `rule_one` [INFO] [stderr] --> src/lifetime0.rs:61:4 [INFO] [stderr] | [INFO] [stderr] 61 | fn rule_one<'a, 'b, 'c>(x: &'a i32, y: &'b String, z: &'c str) { [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `rule_two` [INFO] [stderr] --> src/lifetime0.rs:65:4 [INFO] [stderr] | [INFO] [stderr] 65 | fn rule_two<'a, T>(x: &'a T) -> &T { [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `rule_three` [INFO] [stderr] --> src/lifetime0.rs:71:8 [INFO] [stderr] | [INFO] [stderr] 71 | fn rule_three(&self) -> &T { [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `test_closure` [INFO] [stderr] --> src/function.rs:8:8 [INFO] [stderr] | [INFO] [stderr] 8 | pub fn test_closure() { [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Cache` [INFO] [stderr] --> src/function.rs:69:8 [INFO] [stderr] | [INFO] [stderr] 69 | struct Cache where T: (Fn(i32, i32) -> i32) { [INFO] [stderr] | ^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `new` [INFO] [stderr] --> src/function.rs:75:8 [INFO] [stderr] | [INFO] [stderr] 75 | fn new(closure0: T) -> Cache { [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `value` [INFO] [stderr] --> src/function.rs:82:8 [INFO] [stderr] | [INFO] [stderr] 82 | fn value(&mut self, x: i32, y: i32) -> &i32 { [INFO] [stderr] | ^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `size` [INFO] [stderr] --> src/function.rs:89:8 [INFO] [stderr] | [INFO] [stderr] 89 | fn size(&self) -> usize { [INFO] [stderr] | ^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `test_iterator` [INFO] [stderr] --> src/iterator.rs:21:8 [INFO] [stderr] | [INFO] [stderr] 21 | pub fn test_iterator() { [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Node` [INFO] [stderr] --> src/pointer.rs:5:8 [INFO] [stderr] | [INFO] [stderr] 5 | struct Node { [INFO] [stderr] | ^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `List` [INFO] [stderr] --> src/pointer.rs:10:8 [INFO] [stderr] | [INFO] [stderr] 10 | struct List { [INFO] [stderr] | ^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Tmp` [INFO] [stderr] --> src/pointer.rs:17:8 [INFO] [stderr] | [INFO] [stderr] 17 | struct Tmp { [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `new` [INFO] [stderr] --> src/pointer.rs:27:8 [INFO] [stderr] | [INFO] [stderr] 27 | fn new(v: T) -> MyBox { [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `test_box` [INFO] [stderr] --> src/pointer.rs:51:8 [INFO] [stderr] | [INFO] [stderr] 51 | pub fn test_box() { [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Tmp1` [INFO] [stderr] --> src/pointer.rs:61:8 [INFO] [stderr] | [INFO] [stderr] 61 | struct Tmp1 { [INFO] [stderr] | ^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Tmp2` [INFO] [stderr] --> src/pointer.rs:65:8 [INFO] [stderr] | [INFO] [stderr] 65 | struct Tmp2 { [INFO] [stderr] | ^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Tmp3` [INFO] [stderr] --> src/pointer.rs:69:8 [INFO] [stderr] | [INFO] [stderr] 69 | struct Tmp3 { [INFO] [stderr] | ^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Tmp4` [INFO] [stderr] --> src/pointer.rs:73:8 [INFO] [stderr] | [INFO] [stderr] 73 | struct Tmp4 { [INFO] [stderr] | ^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Tmp5` [INFO] [stderr] --> src/pointer.rs:77:8 [INFO] [stderr] | [INFO] [stderr] 77 | struct Tmp5 { [INFO] [stderr] | ^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `MutRef` [INFO] [stderr] --> src/pointer.rs:81:8 [INFO] [stderr] | [INFO] [stderr] 81 | struct MutRef { [INFO] [stderr] | ^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `add` [INFO] [stderr] --> src/pointer.rs:86:8 [INFO] [stderr] | [INFO] [stderr] 86 | fn add(&self, v: T) { [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `test_deref` [INFO] [stderr] --> src/pointer.rs:92:8 [INFO] [stderr] | [INFO] [stderr] 92 | pub fn test_deref() { [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `test_thread` [INFO] [stderr] --> src/thread0.rs:13:8 [INFO] [stderr] | [INFO] [stderr] 13 | pub fn test_thread() { [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `test` [INFO] [stderr] --> src/test.rs:3:8 [INFO] [stderr] | [INFO] [stderr] 3 | pub fn test() { [INFO] [stderr] | ^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `test_oop` [INFO] [stderr] --> src/oop.rs:31:8 [INFO] [stderr] | [INFO] [stderr] 31 | pub fn test_oop() { [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `design_mode_note` [INFO] [stderr] --> src/design_mode.rs:6:8 [INFO] [stderr] | [INFO] [stderr] 6 | pub fn design_mode_note() { [INFO] [stderr] | ^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: field is never read: `nums` [INFO] [stderr] --> src/unsafe0.rs:15:5 [INFO] [stderr] | [INFO] [stderr] 15 | nums: Vec, [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `increment` [INFO] [stderr] --> src/unsafe0.rs:19:11 [INFO] [stderr] | [INFO] [stderr] 19 | unsafe fn increment(ptr: *mut i32) { [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: static is never used: `COUNT` [INFO] [stderr] --> src/unsafe0.rs:23:1 [INFO] [stderr] | [INFO] [stderr] 23 | static mut COUNT: i32 = 0; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `f1` [INFO] [stderr] --> src/unsafe0.rs:89:4 [INFO] [stderr] | [INFO] [stderr] 89 | fn f1(t: T) {} [INFO] [stderr] | ^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `f2` [INFO] [stderr] --> src/unsafe0.rs:92:4 [INFO] [stderr] | [INFO] [stderr] 92 | fn f2(t: &T) {} [INFO] [stderr] | ^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `inc` [INFO] [stderr] --> src/unsafe0.rs:94:4 [INFO] [stderr] | [INFO] [stderr] 94 | fn inc(a: i32, b: i32) -> i32 { [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `add_twice` [INFO] [stderr] --> src/unsafe0.rs:100:4 [INFO] [stderr] | [INFO] [stderr] 100 | fn add_twice(func: fn(i32, i32) -> i32, val: i32) -> i32 { [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `closure_ret` [INFO] [stderr] --> src/unsafe0.rs:107:4 [INFO] [stderr] | [INFO] [stderr] 107 | fn closure_ret() -> Box i32> { [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `func_ret` [INFO] [stderr] --> src/unsafe0.rs:112:4 [INFO] [stderr] | [INFO] [stderr] 112 | fn func_ret() -> fn(i32) -> i32 { [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `test_unsafe` [INFO] [stderr] --> src/unsafe0.rs:126:8 [INFO] [stderr] | [INFO] [stderr] 126 | pub fn test_unsafe() { [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: field is never read: `thread_num` [INFO] [stderr] --> src/lite_web.rs:10:5 [INFO] [stderr] | [INFO] [stderr] 10 | thread_num: u32, [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: field is never read: `worker_list` [INFO] [stderr] --> src/lite_web.rs:11:5 [INFO] [stderr] | [INFO] [stderr] 11 | worker_list: Vec, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: field is never read: `id` [INFO] [stderr] --> src/lite_web.rs:47:5 [INFO] [stderr] | [INFO] [stderr] 47 | id: String, [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: field is never read: `thread_handle` [INFO] [stderr] --> src/lite_web.rs:48:5 [INFO] [stderr] | [INFO] [stderr] 48 | thread_handle: JoinHandle<()>, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused `Result` that must be used [INFO] [stderr] --> src/thread0.rs:17:5 [INFO] [stderr] | [INFO] [stderr] 17 | handle1.join(); [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_must_use)]` on by default [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `Result` that must be used [INFO] [stderr] --> src/thread0.rs:25:5 [INFO] [stderr] | [INFO] [stderr] 25 | handle2.join(); [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `Result` that must be used [INFO] [stderr] --> src/thread0.rs:33:13 [INFO] [stderr] | [INFO] [stderr] 33 | producer.send(str); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `Result` that must be used [INFO] [stderr] --> src/thread0.rs:42:5 [INFO] [stderr] | [INFO] [stderr] 42 | handle3.join(); [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `Result` that must be used [INFO] [stderr] --> src/thread0.rs:60:9 [INFO] [stderr] | [INFO] [stderr] 60 | handle.join(); [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `Result` that must be used [INFO] [stderr] --> src/unsafe0.rs:156:5 [INFO] [stderr] | [INFO] [stderr] 156 | handle1.join(); [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `Result` that must be used [INFO] [stderr] --> src/lite_web.rs:35:9 [INFO] [stderr] | [INFO] [stderr] 35 | self.sender.send(Box::new(job)); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `Result` that must be used [INFO] [stderr] --> src/lite_web.rs:99:25 [INFO] [stderr] | [INFO] [stderr] 99 | socket.write(resp.as_bytes()); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `Result` that must be used [INFO] [stderr] --> src/lite_web.rs:100:25 [INFO] [stderr] | [INFO] [stderr] 100 | socket.flush(); [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `Result` that must be used [INFO] [stderr] --> src/lite_web.rs:137:17 [INFO] [stderr] | [INFO] [stderr] 137 | socket.write(req.as_slice()); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `Result` that must be used [INFO] [stderr] --> src/lite_web.rs:138:17 [INFO] [stderr] | [INFO] [stderr] 138 | socket.flush(); [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: `rust-base-learn` (bin "rust-base-learn" test) generated 157 warnings [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.01s [INFO] [stderr] Running unittests src/main.rs (/opt/rustwide/target/debug/deps/rust_base_learn-6c1e3e0cb3b8b3ab) [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" "73cf60fc6ca13810ae731fb2fc5399f08f0e2b21985a927b1808a236e7b38968", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "73cf60fc6ca13810ae731fb2fc5399f08f0e2b21985a927b1808a236e7b38968", kill_on_drop: false }` [INFO] [stdout] 73cf60fc6ca13810ae731fb2fc5399f08f0e2b21985a927b1808a236e7b38968