[INFO] cloning repository https://github.com/Abhishek8394/rust-tut-basics
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Abhishek8394/rust-tut-basics" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAbhishek8394%2Frust-tut-basics", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAbhishek8394%2Frust-tut-basics'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 62f62d3624994b41db874b52c2e0b11b72057d11
[INFO] checking Abhishek8394/rust-tut-basics against try#09eeb2bacb9b40b2ed1d47f03177442c0632cda1 for pr-157710
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAbhishek8394%2Frust-tut-basics" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Abhishek8394/rust-tut-basics
[INFO] finished tweaking git repo https://github.com/Abhishek8394/rust-tut-basics
[INFO] tweaked toml for git repo https://github.com/Abhishek8394/rust-tut-basics written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Abhishek8394/rust-tut-basics on toolchain 09eeb2bacb9b40b2ed1d47f03177442c0632cda1
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+09eeb2bacb9b40b2ed1d47f03177442c0632cda1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Abhishek8394/rust-tut-basics already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+09eeb2bacb9b40b2ed1d47f03177442c0632cda1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 10 packages to latest compatible versions
[INFO] [stderr]       Adding bitflags v1.3.2
[INFO] [stderr]       Adding cloudabi v0.0.3
[INFO] [stderr]       Adding fuchsia-cprng v0.1.1
[INFO] [stderr]       Adding libc v0.2.186
[INFO] [stderr]       Adding rand v0.5.6 (available: v0.10.1)
[INFO] [stderr]       Adding rand_core v0.3.1
[INFO] [stderr]       Adding rand_core v0.4.2
[INFO] [stderr]       Adding winapi v0.3.9
[INFO] [stderr]       Adding winapi-i686-pc-windows-gnu v0.4.0
[INFO] [stderr]       Adding winapi-x86_64-pc-windows-gnu v0.4.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3a6becf2bc8dde7f3fa57ede90e4f284e72d296796fc446bbb1e2c7cc0530151" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 08d4906f8b83a4474d37117926ad3023007b45faf137eb816a01667f83acf68a
[INFO] running `Command { std: "docker" "start" "08d4906f8b83a4474d37117926ad3023007b45faf137eb816a01667f83acf68a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "08d4906f8b83a4474d37117926ad3023007b45faf137eb816a01667f83acf68a" "/opt/rustwide/cargo-home/bin/cargo" "+09eeb2bacb9b40b2ed1d47f03177442c0632cda1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "08d4906f8b83a4474d37117926ad3023007b45faf137eb816a01667f83acf68a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-w" "/opt/rustwide/workdir" "--user" "0:0" "08d4906f8b83a4474d37117926ad3023007b45faf137eb816a01667f83acf68a" "/opt/rustwide/cargo-home/bin/cargo" "+09eeb2bacb9b40b2ed1d47f03177442c0632cda1" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.186
[INFO] [stderr]     Checking rand v0.5.6
[INFO] [stderr]     Checking variables v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::error::Error`
[INFO] [stdout]  --> src/main.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::error::Error;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::panic_exc::unrecoverable as Unrec`
[INFO] [stdout]    --> src/main.rs:550:7
[INFO] [stdout]     |
[INFO] [stdout] 550 |         use crate::panic_exc::unrecoverable as Unrec;
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/main.rs:680:4
[INFO] [stdout]     |
[INFO] [stdout] 680 |     if(x.len() > y.len()){
[INFO] [stdout]     |       ^                 ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 680 -     if(x.len() > y.len()){
[INFO] [stdout] 680 +     if x.len() > y.len() {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/main.rs:692:4
[INFO] [stdout]     |
[INFO] [stdout] 692 |     if(x.len() > y.len()){
[INFO] [stdout]     |       ^                 ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 692 -     if(x.len() > y.len()){
[INFO] [stdout] 692 +     if x.len() > y.len() {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/main.rs:774:5
[INFO] [stdout]     |
[INFO] [stdout] 774 |         if(self.is_reply){
[INFO] [stdout]     |           ^             ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 774 -         if(self.is_reply){
[INFO] [stdout] 774 +         if self.is_reply {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around `for` iterator expression
[INFO] [stdout]    --> src/main.rs:872:11
[INFO] [stdout]     |
[INFO] [stdout] 872 |     for i in {0..n} {
[INFO] [stdout]     |              ^    ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_braces)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these braces
[INFO] [stdout]     |
[INFO] [stdout] 872 -     for i in {0..n} {
[INFO] [stdout] 872 +     for i in 0..n  {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::error::Error`
[INFO] [stdout]  --> src/main.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::error::Error;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::panic_exc::unrecoverable as Unrec`
[INFO] [stdout]    --> src/main.rs:550:7
[INFO] [stdout]     |
[INFO] [stdout] 550 |         use crate::panic_exc::unrecoverable as Unrec;
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/main.rs:680:4
[INFO] [stdout]     |
[INFO] [stdout] 680 |     if(x.len() > y.len()){
[INFO] [stdout]     |       ^                 ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 680 -     if(x.len() > y.len()){
[INFO] [stdout] 680 +     if x.len() > y.len() {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/main.rs:692:4
[INFO] [stdout]     |
[INFO] [stdout] 692 |     if(x.len() > y.len()){
[INFO] [stdout]     |       ^                 ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 692 -     if(x.len() > y.len()){
[INFO] [stdout] 692 +     if x.len() > y.len() {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/main.rs:774:5
[INFO] [stdout]     |
[INFO] [stdout] 774 |         if(self.is_reply){
[INFO] [stdout]     |           ^             ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 774 -         if(self.is_reply){
[INFO] [stdout] 774 +         if self.is_reply {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around `for` iterator expression
[INFO] [stdout]    --> src/main.rs:872:11
[INFO] [stdout]     |
[INFO] [stdout] 872 |     for i in {0..n} {
[INFO] [stdout]     |              ^    ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_braces)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these braces
[INFO] [stdout]     |
[INFO] [stdout] 872 -     for i in {0..n} {
[INFO] [stdout] 872 +     for i in 0..n  {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f`
[INFO] [stdout]   --> src/panic_exc.rs:22:13
[INFO] [stdout]    |
[INFO] [stdout] 22 |         let f = match f{
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f`
[INFO] [stdout]   --> src/panic_exc.rs:52:13
[INFO] [stdout]    |
[INFO] [stdout] 52 |         let f = File::open("hello.txt").unwrap_or_else(|err| {
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f`
[INFO] [stdout]   --> src/panic_exc.rs:67:13
[INFO] [stdout]    |
[INFO] [stdout] 67 |         let f = File::open("hello.txt").unwrap_or_else(|err| {
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:247:7
[INFO] [stdout]     |
[INFO] [stdout] 247 |         let mut s1 = String::from("quick brown");
[INFO] [stdout]     |             ----^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:526:7
[INFO] [stdout]     |
[INFO] [stdout] 526 |         let mut scores: HashMap<_, _> = teams.iter().zip(points.iter()).collect();
[INFO] [stdout]     |             ----^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `b`
[INFO] [stdout]   --> src/main.rs:51:6
[INFO] [stdout]    |
[INFO] [stdout] 51 |     let b = [3; 4]; // => b = [3, 3, 3, 3]
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sum`
[INFO] [stdout]   --> src/main.rs:52:6
[INFO] [stdout]    |
[INFO] [stdout] 52 |     let sum = for element in a.iter(){
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_sum`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `hello`
[INFO] [stdout]    --> src/main.rs:249:7
[INFO] [stdout]     |
[INFO] [stdout] 249 |         let hello = hello_return(&s1);
[INFO] [stdout]     |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_hello`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s1`
[INFO] [stdout]    --> src/main.rs:259:7
[INFO] [stdout]     |
[INFO] [stdout] 259 |         let s1 = String::from("range string");
[INFO] [stdout]     |             ^^ help: if this is intentional, prefix it with an underscore: `_s1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `home`
[INFO] [stdout]    --> src/main.rs:326:10
[INFO] [stdout]     |
[INFO] [stdout] 326 |         let home = StrictIpAddr::V4(127, 0, 0, 1);
[INFO] [stdout]     |             ^^^^ help: if this is intentional, prefix it with an underscore: `_home`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `homev6`
[INFO] [stdout]    --> src/main.rs:327:10
[INFO] [stdout]     |
[INFO] [stdout] 327 |         let homev6 = StrictIpAddr::V6(String::from("::1"));
[INFO] [stdout]     |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_homev6`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `nonum`
[INFO] [stdout]    --> src/main.rs:348:7
[INFO] [stdout]     |
[INFO] [stdout] 348 |         let nonum: Option<i32> = Option::None; 
[INFO] [stdout]     |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_nonum`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `v`
[INFO] [stdout]    --> src/main.rs:392:7
[INFO] [stdout]     |
[INFO] [stdout] 392 |         let v: Vec<i32> = Vec::new();
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]    --> src/main.rs:468:7
[INFO] [stdout]     |
[INFO] [stdout] 468 |         let s = String::new();
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `z`
[INFO] [stdout]    --> src/main.rs:627:8
[INFO] [stdout]     |
[INFO] [stdout] 627 |             let z = String::from("I am number FIVE!");
[INFO] [stdout]     |                 ^ help: if this is intentional, prefix it with an underscore: `_z`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/main.rs:872:6
[INFO] [stdout]     |
[INFO] [stdout] 872 |     for i in {0..n} {
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]    --> src/main.rs:971:17
[INFO] [stdout]     |
[INFO] [stdout] 971 | fn hello_return(s: &str) -> &str{
[INFO] [stdout]     |                 ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `version` and `announce_no_lifetime` are never used
[INFO] [stdout]    --> src/main.rs:653:5
[INFO] [stdout]     |
[INFO] [stdout] 652 | impl<'a> ImportantExcerpt<'a>{
[INFO] [stdout]     | ----------------------------- methods in this implementation
[INFO] [stdout] 653 |     fn version(&self)->i32{
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 668 |     fn announce_no_lifetime(&self, ann: &str) -> &str{
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `content` is never read
[INFO] [stdout]    --> src/main.rs:755:2
[INFO] [stdout]     |
[INFO] [stdout] 753 | struct NewsArticle{
[INFO] [stdout]     |        ----------- field in this struct
[INFO] [stdout] 754 |     author: String,
[INFO] [stdout] 755 |     content: String,
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `username` is never read
[INFO] [stdout]    --> src/main.rs:761:2
[INFO] [stdout]     |
[INFO] [stdout] 760 | struct Tweet{
[INFO] [stdout]     |        ----- field in this struct
[INFO] [stdout] 761 |     username: String,
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/main.rs:809:6
[INFO] [stdout]     |
[INFO] [stdout] 809 |     Int(i32),
[INFO] [stdout]     |     --- ^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `SpreadsheetCell` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 809 -     Int(i32),
[INFO] [stdout] 809 +     Int(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/main.rs:810:8
[INFO] [stdout]     |
[INFO] [stdout] 810 |     Float(f64),
[INFO] [stdout]     |     ----- ^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `SpreadsheetCell` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 810 -     Float(f64),
[INFO] [stdout] 810 +     Float(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/main.rs:811:7
[INFO] [stdout]     |
[INFO] [stdout] 811 |     Text(String),
[INFO] [stdout]     |     ---- ^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `SpreadsheetCell` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 811 -     Text(String),
[INFO] [stdout] 811 +     Text(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `NewYork` is never constructed
[INFO] [stdout]    --> src/main.rs:846:2
[INFO] [stdout]     |
[INFO] [stdout] 844 | enum USState{
[INFO] [stdout]     |      ------- variant in this enum
[INFO] [stdout] 845 |     California,
[INFO] [stdout] 846 |     NewYork,
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `USState` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Penny`, `Nickel`, and `Dime` are never constructed
[INFO] [stdout]    --> src/main.rs:851:2
[INFO] [stdout]     |
[INFO] [stdout] 850 | enum Coin{
[INFO] [stdout]     |      ---- variants in this enum
[INFO] [stdout] 851 |     Penny,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] 852 |     Nickel,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout] 853 |     Dime,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Coin` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0`, `1`, `2`, and `3` are never read
[INFO] [stdout]    --> src/main.rs:891:5
[INFO] [stdout]     |
[INFO] [stdout] 891 |     V4(u8, u8, u8, u8),
[INFO] [stdout]     |     -- ^^  ^^  ^^  ^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     fields in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `StrictIpAddr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields
[INFO] [stdout]     |
[INFO] [stdout] 891 -     V4(u8, u8, u8, u8),
[INFO] [stdout] 891 +     V4((), (), (), ()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/main.rs:892:5
[INFO] [stdout]     |
[INFO] [stdout] 892 |     V6(String),
[INFO] [stdout]     |     -- ^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `StrictIpAddr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 892 -     V6(String),
[INFO] [stdout] 892 +     V6(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `formatted` is never used
[INFO] [stdout]    --> src/main.rs:896:5
[INFO] [stdout]     |
[INFO] [stdout] 895 | impl StrictIpAddr {
[INFO] [stdout]     | ----------------- method in this implementation
[INFO] [stdout] 896 |     fn formatted(&self){
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `x` and `y` are never read
[INFO] [stdout]    --> src/main.rs:903:8
[INFO] [stdout]     |
[INFO] [stdout] 903 |     Move {x: i32, y: i32},
[INFO] [stdout]     |     ----  ^       ^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     fields in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Message` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/main.rs:904:14
[INFO] [stdout]     |
[INFO] [stdout] 904 |     ChangeColor(RGBtup),
[INFO] [stdout]     |     ----------- ^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Message` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 904 -     ChangeColor(RGBtup),
[INFO] [stdout] 904 +     ChangeColor(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `sign_in_count` and `active` are never read
[INFO] [stdout]    --> src/main.rs:924:2
[INFO] [stdout]     |
[INFO] [stdout] 921 | struct User{
[INFO] [stdout]     |        ---- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 924 |     sign_in_count: u64,
[INFO] [stdout]     |     ^^^^^^^^^^^^^
[INFO] [stdout] 925 |     active: bool,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `User` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `deliberate_panic` is never used
[INFO] [stdout]  --> src/panic_exc.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 |     pub fn deliberate_panic(){
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `accident_panic` is never used
[INFO] [stdout]  --> src/panic_exc.rs:7:12
[INFO] [stdout]   |
[INFO] [stdout] 7 |     pub fn accident_panic(){
[INFO] [stdout]   |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f`
[INFO] [stdout]   --> src/panic_exc.rs:22:13
[INFO] [stdout]    |
[INFO] [stdout] 22 |         let f = match f{
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f`
[INFO] [stdout]   --> src/panic_exc.rs:52:13
[INFO] [stdout]    |
[INFO] [stdout] 52 |         let f = File::open("hello.txt").unwrap_or_else(|err| {
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f`
[INFO] [stdout]   --> src/panic_exc.rs:67:13
[INFO] [stdout]    |
[INFO] [stdout] 67 |         let f = File::open("hello.txt").unwrap_or_else(|err| {
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `idPrint` should have a snake case name
[INFO] [stdout]    --> src/main.rs:930:5
[INFO] [stdout]     |
[INFO] [stdout] 930 |     fn idPrint(&self){
[INFO] [stdout]     |        ^^^^^^^ help: convert the identifier to snake case: `id_print`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `getMaxSigninAttempts` should have a snake case name
[INFO] [stdout]    --> src/main.rs:937:5
[INFO] [stdout]     |
[INFO] [stdout] 937 |     fn getMaxSigninAttempts()->u32{
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `get_max_signin_attempts`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/panic_exc.rs:37:36
[INFO] [stdout]    |
[INFO] [stdout] 37 | ...                   panic!(e2);
[INFO] [stdout]    |                              ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]    = note: `#[warn(non_fmt_panics)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: add a "{}" format string to `Display` the message
[INFO] [stdout]    |
[INFO] [stdout] 37 |                             panic!("{}", e2);
[INFO] [stdout]    |                                    +++++
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]    |
[INFO] [stdout] 37 -                             panic!(e2);
[INFO] [stdout] 37 +                             std::panic::panic_any(e2);
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/panic_exc.rs:43:28
[INFO] [stdout]    |
[INFO] [stdout] 43 |                     panic!(e);
[INFO] [stdout]    |                            ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout] help: add a "{}" format string to `Display` the message
[INFO] [stdout]    |
[INFO] [stdout] 43 |                     panic!("{}", e);
[INFO] [stdout]    |                            +++++
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]    |
[INFO] [stdout] 43 -                     panic!(e);
[INFO] [stdout] 43 +                     std::panic::panic_any(e);
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/panic_exc.rs:57:28
[INFO] [stdout]    |
[INFO] [stdout] 57 |                     panic!(err);
[INFO] [stdout]    |                            ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout] help: add a "{}" format string to `Display` the message
[INFO] [stdout]    |
[INFO] [stdout] 57 |                     panic!("{}", err);
[INFO] [stdout]    |                            +++++
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]    |
[INFO] [stdout] 57 -                     panic!(err);
[INFO] [stdout] 57 +                     std::panic::panic_any(err);
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/panic_exc.rs:61:20
[INFO] [stdout]    |
[INFO] [stdout] 61 |             panic!(err);
[INFO] [stdout]    |                    ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout] help: add a "{}" format string to `Display` the message
[INFO] [stdout]    |
[INFO] [stdout] 61 |             panic!("{}", err);
[INFO] [stdout]    |                    +++++
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]    |
[INFO] [stdout] 61 -             panic!(err);
[INFO] [stdout] 61 +             std::panic::panic_any(err);
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/panic_exc.rs:73:20
[INFO] [stdout]    |
[INFO] [stdout] 73 |             panic!(err);
[INFO] [stdout]    |                    ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout] help: add a "{}" format string to `Display` the message
[INFO] [stdout]    |
[INFO] [stdout] 73 |             panic!("{}", err);
[INFO] [stdout]    |                    +++++
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]    |
[INFO] [stdout] 73 -             panic!(err);
[INFO] [stdout] 73 +             std::panic::panic_any(err);
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/panic_exc.rs:84:30
[INFO] [stdout]    |
[INFO] [stdout] 84 |             Err(e) => panic!(e)
[INFO] [stdout]    |                              ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout] help: add a "{}" format string to `Display` the message
[INFO] [stdout]    |
[INFO] [stdout] 84 |             Err(e) => panic!("{}", e)
[INFO] [stdout]    |                              +++++
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]    |
[INFO] [stdout] 84 -             Err(e) => panic!(e)
[INFO] [stdout] 84 +             Err(e) => std::panic::panic_any(e)
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:247:7
[INFO] [stdout]     |
[INFO] [stdout] 247 |         let mut s1 = String::from("quick brown");
[INFO] [stdout]     |             ----^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:526:7
[INFO] [stdout]     |
[INFO] [stdout] 526 |         let mut scores: HashMap<_, _> = teams.iter().zip(points.iter()).collect();
[INFO] [stdout]     |             ----^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `b`
[INFO] [stdout]   --> src/main.rs:51:6
[INFO] [stdout]    |
[INFO] [stdout] 51 |     let b = [3; 4]; // => b = [3, 3, 3, 3]
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sum`
[INFO] [stdout]   --> src/main.rs:52:6
[INFO] [stdout]    |
[INFO] [stdout] 52 |     let sum = for element in a.iter(){
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_sum`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `hello`
[INFO] [stdout]    --> src/main.rs:249:7
[INFO] [stdout]     |
[INFO] [stdout] 249 |         let hello = hello_return(&s1);
[INFO] [stdout]     |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_hello`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s1`
[INFO] [stdout]    --> src/main.rs:259:7
[INFO] [stdout]     |
[INFO] [stdout] 259 |         let s1 = String::from("range string");
[INFO] [stdout]     |             ^^ help: if this is intentional, prefix it with an underscore: `_s1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `home`
[INFO] [stdout]    --> src/main.rs:326:10
[INFO] [stdout]     |
[INFO] [stdout] 326 |         let home = StrictIpAddr::V4(127, 0, 0, 1);
[INFO] [stdout]     |             ^^^^ help: if this is intentional, prefix it with an underscore: `_home`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `homev6`
[INFO] [stdout]    --> src/main.rs:327:10
[INFO] [stdout]     |
[INFO] [stdout] 327 |         let homev6 = StrictIpAddr::V6(String::from("::1"));
[INFO] [stdout]     |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_homev6`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `nonum`
[INFO] [stdout]    --> src/main.rs:348:7
[INFO] [stdout]     |
[INFO] [stdout] 348 |         let nonum: Option<i32> = Option::None; 
[INFO] [stdout]     |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_nonum`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `v`
[INFO] [stdout]    --> src/main.rs:392:7
[INFO] [stdout]     |
[INFO] [stdout] 392 |         let v: Vec<i32> = Vec::new();
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]    --> src/main.rs:468:7
[INFO] [stdout]     |
[INFO] [stdout] 468 |         let s = String::new();
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `z`
[INFO] [stdout]    --> src/main.rs:627:8
[INFO] [stdout]     |
[INFO] [stdout] 627 |             let z = String::from("I am number FIVE!");
[INFO] [stdout]     |                 ^ help: if this is intentional, prefix it with an underscore: `_z`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/main.rs:872:6
[INFO] [stdout]     |
[INFO] [stdout] 872 |     for i in {0..n} {
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]    --> src/main.rs:971:17
[INFO] [stdout]     |
[INFO] [stdout] 971 | fn hello_return(s: &str) -> &str{
[INFO] [stdout]     |                 ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `version` and `announce_no_lifetime` are never used
[INFO] [stdout]    --> src/main.rs:653:5
[INFO] [stdout]     |
[INFO] [stdout] 652 | impl<'a> ImportantExcerpt<'a>{
[INFO] [stdout]     | ----------------------------- methods in this implementation
[INFO] [stdout] 653 |     fn version(&self)->i32{
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 668 |     fn announce_no_lifetime(&self, ann: &str) -> &str{
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `content` is never read
[INFO] [stdout]    --> src/main.rs:755:2
[INFO] [stdout]     |
[INFO] [stdout] 753 | struct NewsArticle{
[INFO] [stdout]     |        ----------- field in this struct
[INFO] [stdout] 754 |     author: String,
[INFO] [stdout] 755 |     content: String,
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `username` is never read
[INFO] [stdout]    --> src/main.rs:761:2
[INFO] [stdout]     |
[INFO] [stdout] 760 | struct Tweet{
[INFO] [stdout]     |        ----- field in this struct
[INFO] [stdout] 761 |     username: String,
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/main.rs:809:6
[INFO] [stdout]     |
[INFO] [stdout] 809 |     Int(i32),
[INFO] [stdout]     |     --- ^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `SpreadsheetCell` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 809 -     Int(i32),
[INFO] [stdout] 809 +     Int(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/main.rs:810:8
[INFO] [stdout]     |
[INFO] [stdout] 810 |     Float(f64),
[INFO] [stdout]     |     ----- ^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `SpreadsheetCell` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 810 -     Float(f64),
[INFO] [stdout] 810 +     Float(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/main.rs:811:7
[INFO] [stdout]     |
[INFO] [stdout] 811 |     Text(String),
[INFO] [stdout]     |     ---- ^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `SpreadsheetCell` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 811 -     Text(String),
[INFO] [stdout] 811 +     Text(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `NewYork` is never constructed
[INFO] [stdout]    --> src/main.rs:846:2
[INFO] [stdout]     |
[INFO] [stdout] 844 | enum USState{
[INFO] [stdout]     |      ------- variant in this enum
[INFO] [stdout] 845 |     California,
[INFO] [stdout] 846 |     NewYork,
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `USState` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Penny`, `Nickel`, and `Dime` are never constructed
[INFO] [stdout]    --> src/main.rs:851:2
[INFO] [stdout]     |
[INFO] [stdout] 850 | enum Coin{
[INFO] [stdout]     |      ---- variants in this enum
[INFO] [stdout] 851 |     Penny,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] 852 |     Nickel,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout] 853 |     Dime,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Coin` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0`, `1`, `2`, and `3` are never read
[INFO] [stdout]    --> src/main.rs:891:5
[INFO] [stdout]     |
[INFO] [stdout] 891 |     V4(u8, u8, u8, u8),
[INFO] [stdout]     |     -- ^^  ^^  ^^  ^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     fields in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `StrictIpAddr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields
[INFO] [stdout]     |
[INFO] [stdout] 891 -     V4(u8, u8, u8, u8),
[INFO] [stdout] 891 +     V4((), (), (), ()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/main.rs:892:5
[INFO] [stdout]     |
[INFO] [stdout] 892 |     V6(String),
[INFO] [stdout]     |     -- ^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `StrictIpAddr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 892 -     V6(String),
[INFO] [stdout] 892 +     V6(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `formatted` is never used
[INFO] [stdout]    --> src/main.rs:896:5
[INFO] [stdout]     |
[INFO] [stdout] 895 | impl StrictIpAddr {
[INFO] [stdout]     | ----------------- method in this implementation
[INFO] [stdout] 896 |     fn formatted(&self){
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `x` and `y` are never read
[INFO] [stdout]    --> src/main.rs:903:8
[INFO] [stdout]     |
[INFO] [stdout] 903 |     Move {x: i32, y: i32},
[INFO] [stdout]     |     ----  ^       ^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     fields in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Message` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/main.rs:904:14
[INFO] [stdout]     |
[INFO] [stdout] 904 |     ChangeColor(RGBtup),
[INFO] [stdout]     |     ----------- ^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Message` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 904 -     ChangeColor(RGBtup),
[INFO] [stdout] 904 +     ChangeColor(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `sign_in_count` and `active` are never read
[INFO] [stdout]    --> src/main.rs:924:2
[INFO] [stdout]     |
[INFO] [stdout] 921 | struct User{
[INFO] [stdout]     |        ---- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 924 |     sign_in_count: u64,
[INFO] [stdout]     |     ^^^^^^^^^^^^^
[INFO] [stdout] 925 |     active: bool,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `User` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `deliberate_panic` is never used
[INFO] [stdout]  --> src/panic_exc.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 |     pub fn deliberate_panic(){
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `accident_panic` is never used
[INFO] [stdout]  --> src/panic_exc.rs:7:12
[INFO] [stdout]   |
[INFO] [stdout] 7 |     pub fn accident_panic(){
[INFO] [stdout]   |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `idPrint` should have a snake case name
[INFO] [stdout]    --> src/main.rs:930:5
[INFO] [stdout]     |
[INFO] [stdout] 930 |     fn idPrint(&self){
[INFO] [stdout]     |        ^^^^^^^ help: convert the identifier to snake case: `id_print`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `getMaxSigninAttempts` should have a snake case name
[INFO] [stdout]    --> src/main.rs:937:5
[INFO] [stdout]     |
[INFO] [stdout] 937 |     fn getMaxSigninAttempts()->u32{
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `get_max_signin_attempts`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/panic_exc.rs:37:36
[INFO] [stdout]    |
[INFO] [stdout] 37 | ...                   panic!(e2);
[INFO] [stdout]    |                              ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]    = note: `#[warn(non_fmt_panics)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: add a "{}" format string to `Display` the message
[INFO] [stdout]    |
[INFO] [stdout] 37 |                             panic!("{}", e2);
[INFO] [stdout]    |                                    +++++
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]    |
[INFO] [stdout] 37 -                             panic!(e2);
[INFO] [stdout] 37 +                             std::panic::panic_any(e2);
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/panic_exc.rs:43:28
[INFO] [stdout]    |
[INFO] [stdout] 43 |                     panic!(e);
[INFO] [stdout]    |                            ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout] help: add a "{}" format string to `Display` the message
[INFO] [stdout]    |
[INFO] [stdout] 43 |                     panic!("{}", e);
[INFO] [stdout]    |                            +++++
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]    |
[INFO] [stdout] 43 -                     panic!(e);
[INFO] [stdout] 43 +                     std::panic::panic_any(e);
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/panic_exc.rs:57:28
[INFO] [stdout]    |
[INFO] [stdout] 57 |                     panic!(err);
[INFO] [stdout]    |                            ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout] help: add a "{}" format string to `Display` the message
[INFO] [stdout]    |
[INFO] [stdout] 57 |                     panic!("{}", err);
[INFO] [stdout]    |                            +++++
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]    |
[INFO] [stdout] 57 -                     panic!(err);
[INFO] [stdout] 57 +                     std::panic::panic_any(err);
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/panic_exc.rs:61:20
[INFO] [stdout]    |
[INFO] [stdout] 61 |             panic!(err);
[INFO] [stdout]    |                    ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout] help: add a "{}" format string to `Display` the message
[INFO] [stdout]    |
[INFO] [stdout] 61 |             panic!("{}", err);
[INFO] [stdout]    |                    +++++
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]    |
[INFO] [stdout] 61 -             panic!(err);
[INFO] [stdout] 61 +             std::panic::panic_any(err);
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/panic_exc.rs:73:20
[INFO] [stdout]    |
[INFO] [stdout] 73 |             panic!(err);
[INFO] [stdout]    |                    ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout] help: add a "{}" format string to `Display` the message
[INFO] [stdout]    |
[INFO] [stdout] 73 |             panic!("{}", err);
[INFO] [stdout]    |                    +++++
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]    |
[INFO] [stdout] 73 -             panic!(err);
[INFO] [stdout] 73 +             std::panic::panic_any(err);
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/panic_exc.rs:84:30
[INFO] [stdout]    |
[INFO] [stdout] 84 |             Err(e) => panic!(e)
[INFO] [stdout]    |                              ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout] help: add a "{}" format string to `Display` the message
[INFO] [stdout]    |
[INFO] [stdout] 84 |             Err(e) => panic!("{}", e)
[INFO] [stdout]    |                              +++++
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]    |
[INFO] [stdout] 84 -             Err(e) => panic!(e)
[INFO] [stdout] 84 +             Err(e) => std::panic::panic_any(e)
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.91s
[INFO] running `Command { std: "docker" "inspect" "08d4906f8b83a4474d37117926ad3023007b45faf137eb816a01667f83acf68a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "08d4906f8b83a4474d37117926ad3023007b45faf137eb816a01667f83acf68a", kill_on_drop: false }`
[INFO] [stdout] 08d4906f8b83a4474d37117926ad3023007b45faf137eb816a01667f83acf68a
