[INFO] cloning repository https://github.com/eexotm/rust-stuff
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/eexotm/rust-stuff" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Feexotm%2Frust-stuff", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Feexotm%2Frust-stuff'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 525bd6bcd0acf3b93d678971f122835a6cdbd2ad
[INFO] fixing eexotm/rust-stuff against try#622891a4e29178280638a6b63a8908bde2c0c854+cargoflags=-Zfix-edition=start=2015 for pr-157817-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Feexotm%2Frust-stuff" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/eexotm/rust-stuff
[INFO] finished tweaking git repo https://github.com/eexotm/rust-stuff
[INFO] tweaked toml for git repo https://github.com/eexotm/rust-stuff written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/eexotm/rust-stuff on toolchain 622891a4e29178280638a6b63a8908bde2c0c854
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+622891a4e29178280638a6b63a8908bde2c0c854" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/eexotm/rust-stuff 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" "+622891a4e29178280638a6b63a8908bde2c0c854" "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-7-tc1/source:/opt/rustwide/workdir:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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] e422f1101647e6b41a12ce6ed4869d871a91a4ad96b3602f0e1e36807f566bf0
[INFO] running `Command { std: "docker" "start" "e422f1101647e6b41a12ce6ed4869d871a91a4ad96b3602f0e1e36807f566bf0", 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" "e422f1101647e6b41a12ce6ed4869d871a91a4ad96b3602f0e1e36807f566bf0" "/opt/rustwide/cargo-home/bin/cargo" "+622891a4e29178280638a6b63a8908bde2c0c854" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e422f1101647e6b41a12ce6ed4869d871a91a4ad96b3602f0e1e36807f566bf0", 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=" "-e" "RUSTDOCFLAGS=" "-w" "/opt/rustwide/workdir" "--user" "0:0" "e422f1101647e6b41a12ce6ed4869d871a91a4ad96b3602f0e1e36807f566bf0" "/opt/rustwide/cargo-home/bin/cargo" "+622891a4e29178280638a6b63a8908bde2c0c854" "fix" "--allow-no-vcs" "--allow-dirty" "--frozen" "--all" "--all-targets" "--message-format=json" "-Zfix-edition=start=2015", kill_on_drop: false }`
[INFO] [stderr]     Checking eexo v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]  --> src/bin/p1.rs:2:9
[INFO] [stdout]   |
[INFO] [stdout] 2 |     let mut x = 5;
[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: unused variable: `spaces`
[INFO] [stdout]   --> src/bin/p1.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 |     let spaces = spaces.len();
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_spaces`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x1`
[INFO] [stdout]   --> src/bin/p1.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |     let x1:u32 = "42".parse().expect("not a number");
[INFO] [stdout]    |         ^^ help: if this is intentional, prefix it with an underscore: `_x1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `arr`
[INFO] [stdout]   --> src/bin/p1.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 13 |     let arr = [1,2,3,4,5];
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_arr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `z`
[INFO] [stdout]   --> src/bin/p1.rs:16:9
[INFO] [stdout]    |
[INFO] [stdout] 16 |     let z = {
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_z`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `person`
[INFO] [stdout]   --> src/bin/p5.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 13 |     let person = take_order;
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_person`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fmt::Display`
[INFO] [stdout]   --> src/bin/p8.rs:89:5
[INFO] [stdout]    |
[INFO] [stdout] 89 | use std::fmt::Display;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `int` should have an upper camel case name
[INFO] [stdout]  --> src/bin/p6.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     int(i32),
[INFO] [stdout]   |     ^^^ help: convert the identifier to upper camel case (notice the capitalization): `Int`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_camel_case_types)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `string` should have an upper camel case name
[INFO] [stdout]  --> src/bin/p6.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     string(String),
[INFO] [stdout]   |     ^^^^^^ help: convert the identifier to upper camel case (notice the capitalization): `String`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `float` should have an upper camel case name
[INFO] [stdout]  --> src/bin/p6.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     float(f64),
[INFO] [stdout]   |     ^^^^^ help: convert the identifier to upper camel case (notice the capitalization): `Float`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `first`
[INFO] [stdout]   --> src/bin/p6.rs:16:9
[INFO] [stdout]    |
[INFO] [stdout] 16 |     let first = v2[1].clone();
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_first`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `second`
[INFO] [stdout]   --> src/bin/p6.rs:17:9
[INFO] [stdout]    |
[INFO] [stdout] 17 |     let second = v[2];
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_second`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `person`
[INFO] [stdout]   --> src/bin/p5.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 13 |     let person = take_order;
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_person`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `t`
[INFO] [stdout]   --> src/bin/p8.rs:78:22
[INFO] [stdout]    |
[INFO] [stdout] 78 | pub fn general3<T,U>(t: &T, u: &U) where T: Actions, U: Actions, {
[INFO] [stdout]    |                      ^ help: if this is intentional, prefix it with an underscore: `_t`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `u`
[INFO] [stdout]   --> src/bin/p8.rs:78:29
[INFO] [stdout]    |
[INFO] [stdout] 78 | pub fn general3<T,U>(t: &T, u: &U) where T: Actions, U: Actions, {
[INFO] [stdout]    |                             ^ help: if this is intentional, prefix it with an underscore: `_u`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/bin/p8.rs:104:9
[INFO] [stdout]     |
[INFO] [stdout] 104 |     let mut truck = Truck {height: 3, fuel: 50, state: false};
[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: unused variable: `p1`
[INFO] [stdout]   --> src/bin/p8.rs:95:9
[INFO] [stdout]    |
[INFO] [stdout] 95 |     let p1 = Point {x: 10, y: 0.5};
[INFO] [stdout]    |         ^^ help: if this is intentional, prefix it with an underscore: `_p1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `do_something` is never used
[INFO] [stdout]  --> src/bin/p8.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn do_something<T>(value: T) -> T{
[INFO] [stdout]   |    ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `level` is never used
[INFO] [stdout]   --> src/bin/p82.rs:29:8
[INFO] [stdout]    |
[INFO] [stdout] 28 | impl<'a> Important<'a> {
[INFO] [stdout]    | ---------------------- method in this implementation
[INFO] [stdout] 29 |     fn level(&self) -> i32 { 3 }
[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 `height` is never read
[INFO] [stdout]   --> src/bin/p8.rs:48:5
[INFO] [stdout]    |
[INFO] [stdout] 47 | struct Truck {
[INFO] [stdout]    |        ----- field in this struct
[INFO] [stdout] 48 |     height: i8,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Pair` is never constructed
[INFO] [stdout]   --> src/bin/p8.rs:90:8
[INFO] [stdout]    |
[INFO] [stdout] 90 | struct Pair<T> {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `add_to_waitlist` is never used
[INFO] [stdout]  --> src/restaurant/in_line.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn add_to_waitlist() {}
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `int` should have an upper camel case name
[INFO] [stdout]  --> src/bin/p6.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     int(i32),
[INFO] [stdout]   |     ^^^ help: convert the identifier to upper camel case (notice the capitalization): `Int`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_camel_case_types)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `string` should have an upper camel case name
[INFO] [stdout]  --> src/bin/p6.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     string(String),
[INFO] [stdout]   |     ^^^^^^ help: convert the identifier to upper camel case (notice the capitalization): `String`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `float` should have an upper camel case name
[INFO] [stdout]  --> src/bin/p6.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     float(f64),
[INFO] [stdout]   |     ^^^^^ help: convert the identifier to upper camel case (notice the capitalization): `Float`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]   --> src/bin/p4.rs:45:31
[INFO] [stdout]    |
[INFO] [stdout] 45 |     let coins = Coin::Quarter((UsState::Alabama));
[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] 45 -     let coins = Coin::Quarter((UsState::Alabama));
[INFO] [stdout] 45 +     let coins = Coin::Quarter(UsState::Alabama );
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `read_username` is never used
[INFO] [stdout]   --> src/bin/p7.rs:21:4
[INFO] [stdout]    |
[INFO] [stdout] 21 | fn read_username() -> Result<String, io::Error> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]   --> src/bin/p4.rs:45:31
[INFO] [stdout]    |
[INFO] [stdout] 45 |     let coins = Coin::Quarter((UsState::Alabama));
[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] 45 -     let coins = Coin::Quarter((UsState::Alabama));
[INFO] [stdout] 45 +     let coins = Coin::Quarter(UsState::Alabama );
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `mobile`
[INFO] [stdout]   --> src/bin/p4.rs:44:9
[INFO] [stdout]    |
[INFO] [stdout] 44 |     let mobile = IpAddr::V4;
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_mobile`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `V6` is never constructed
[INFO] [stdout]  --> src/bin/p4.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | enum IpAddr {
[INFO] [stdout]   |      ------ variant in this enum
[INFO] [stdout] 2 |     V4,
[INFO] [stdout] 3 |     V6,
[INFO] [stdout]   |     ^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Message` is never used
[INFO] [stdout]  --> src/bin/p4.rs:6:6
[INFO] [stdout]   |
[INFO] [stdout] 6 | enum Message {
[INFO] [stdout]   |      ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Alaska` is never constructed
[INFO] [stdout]   --> src/bin/p4.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | enum UsState {
[INFO] [stdout]    |      ------- variant in this enum
[INFO] [stdout] 14 |     Alabama,
[INFO] [stdout] 15 |     Alaska,
[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/bin/p4.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 18 | enum Coin {
[INFO] [stdout]    |      ---- variants in this enum
[INFO] [stdout] 19 |     Penny,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 20 |     Nickel,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 21 |     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: unused variable: `first`
[INFO] [stdout]   --> src/bin/p6.rs:16:9
[INFO] [stdout]    |
[INFO] [stdout] 16 |     let first = v2[1].clone();
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_first`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `second`
[INFO] [stdout]   --> src/bin/p6.rs:17:9
[INFO] [stdout]    |
[INFO] [stdout] 17 |     let second = v[2];
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_second`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `mobile`
[INFO] [stdout]   --> src/bin/p4.rs:44:9
[INFO] [stdout]    |
[INFO] [stdout] 44 |     let mobile = IpAddr::V4;
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_mobile`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `V6` is never constructed
[INFO] [stdout]  --> src/bin/p4.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | enum IpAddr {
[INFO] [stdout]   |      ------ variant in this enum
[INFO] [stdout] 2 |     V4,
[INFO] [stdout] 3 |     V6,
[INFO] [stdout]   |     ^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Message` is never used
[INFO] [stdout]  --> src/bin/p4.rs:6:6
[INFO] [stdout]   |
[INFO] [stdout] 6 | enum Message {
[INFO] [stdout]   |      ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Alaska` is never constructed
[INFO] [stdout]   --> src/bin/p4.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | enum UsState {
[INFO] [stdout]    |      ------- variant in this enum
[INFO] [stdout] 14 |     Alabama,
[INFO] [stdout] 15 |     Alaska,
[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/bin/p4.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 18 | enum Coin {
[INFO] [stdout]    |      ---- variants in this enum
[INFO] [stdout] 19 |     Penny,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 20 |     Nickel,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 21 |     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: unused import: `std::fmt::Display`
[INFO] [stdout]   --> src/bin/p8.rs:89:5
[INFO] [stdout]    |
[INFO] [stdout] 89 | use std::fmt::Display;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `add_to_waitlist` is never used
[INFO] [stdout]  --> src/restaurant/in_line.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn add_to_waitlist() {}
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `t`
[INFO] [stdout]   --> src/bin/p8.rs:78:22
[INFO] [stdout]    |
[INFO] [stdout] 78 | pub fn general3<T,U>(t: &T, u: &U) where T: Actions, U: Actions, {
[INFO] [stdout]    |                      ^ help: if this is intentional, prefix it with an underscore: `_t`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `u`
[INFO] [stdout]   --> src/bin/p8.rs:78:29
[INFO] [stdout]    |
[INFO] [stdout] 78 | pub fn general3<T,U>(t: &T, u: &U) where T: Actions, U: Actions, {
[INFO] [stdout]    |                             ^ help: if this is intentional, prefix it with an underscore: `_u`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/bin/p8.rs:104:9
[INFO] [stdout]     |
[INFO] [stdout] 104 |     let mut truck = Truck {height: 3, fuel: 50, state: false};
[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: unused variable: `p1`
[INFO] [stdout]   --> src/bin/p8.rs:95:9
[INFO] [stdout]    |
[INFO] [stdout] 95 |     let p1 = Point {x: 10, y: 0.5};
[INFO] [stdout]    |         ^^ help: if this is intentional, prefix it with an underscore: `_p1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `do_something` is never used
[INFO] [stdout]  --> src/bin/p8.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn do_something<T>(value: T) -> T{
[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 `height` is never read
[INFO] [stdout]   --> src/bin/p8.rs:48:5
[INFO] [stdout]    |
[INFO] [stdout] 47 | struct Truck {
[INFO] [stdout]    |        ----- field in this struct
[INFO] [stdout] 48 |     height: i8,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Pair` is never constructed
[INFO] [stdout]   --> src/bin/p8.rs:90:8
[INFO] [stdout]    |
[INFO] [stdout] 90 | struct Pair<T> {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Rectangle` is never constructed
[INFO] [stdout]  --> src/bin/lib.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | struct Rectangle {
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `can_hold` is never used
[INFO] [stdout]  --> src/bin/lib.rs:9:8
[INFO] [stdout]   |
[INFO] [stdout] 8 | impl Rectangle {
[INFO] [stdout]   | -------------- method in this implementation
[INFO] [stdout] 9 |     fn can_hold(&self, other: &Rectangle) -> bool {
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/bin/p2.rs:20:9
[INFO] [stdout]    |
[INFO] [stdout] 20 |     let mut r1 = &s1;
[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: unused variable: `s`
[INFO] [stdout]  --> src/bin/p2.rs:3:7
[INFO] [stdout]   |
[INFO] [stdout] 3 |   let s = String::from("HELLO");  
[INFO] [stdout]   |       ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `r1`
[INFO] [stdout]   --> src/bin/p2.rs:20:9
[INFO] [stdout]    |
[INFO] [stdout] 20 |     let mut r1 = &s1;
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_r1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `create_copy` is never used
[INFO] [stdout]   --> src/bin/p2.rs:34:4
[INFO] [stdout]    |
[INFO] [stdout] 34 | fn create_copy(int: i32) -> i32 {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `first_word` is never used
[INFO] [stdout]   --> src/bin/p2.rs:41:4
[INFO] [stdout]    |
[INFO] [stdout] 41 | fn first_word(s: &String) -> &str {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `len_of_string` is never used
[INFO] [stdout]   --> src/bin/p2.rs:53:4
[INFO] [stdout]    |
[INFO] [stdout] 53 | fn len_of_string(s:&str) -> usize {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]  --> src/bin/p1.rs:2:9
[INFO] [stdout]   |
[INFO] [stdout] 2 |     let mut x = 5;
[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: unused variable: `spaces`
[INFO] [stdout]   --> src/bin/p1.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 |     let spaces = spaces.len();
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_spaces`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0601]: `main` function not found in crate `lifetimeprac`
[INFO] [stdout]   |
[INFO] [stdout]   = note: consider adding a `main` function to `src/bin/lifetimeprac.rs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0601`.
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x1`
[INFO] [stdout]   --> src/bin/p1.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |     let x1:u32 = "42".parse().expect("not a number");
[INFO] [stdout]    |         ^^ help: if this is intentional, prefix it with an underscore: `_x1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `arr`
[INFO] [stdout]   --> src/bin/p1.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 13 |     let arr = [1,2,3,4,5];
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_arr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `z`
[INFO] [stdout]   --> src/bin/p1.rs:16:9
[INFO] [stdout]    |
[INFO] [stdout] 16 |     let z = {
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_z`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `eexo` (bin "lifetimeprac") due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: function `read_username` is never used
[INFO] [stdout]   --> src/bin/p7.rs:21:4
[INFO] [stdout]    |
[INFO] [stdout] 21 | fn read_username() -> Result<String, io::Error> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `level` is never used
[INFO] [stdout]   --> src/bin/p82.rs:29:8
[INFO] [stdout]    |
[INFO] [stdout] 28 | impl<'a> Important<'a> {
[INFO] [stdout]    | ---------------------- method in this implementation
[INFO] [stdout] 29 |     fn level(&self) -> i32 { 3 }
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/bin/p2.rs:20:9
[INFO] [stdout]    |
[INFO] [stdout] 20 |     let mut r1 = &s1;
[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: unused variable: `s`
[INFO] [stdout]  --> src/bin/p2.rs:3:7
[INFO] [stdout]   |
[INFO] [stdout] 3 |   let s = String::from("HELLO");  
[INFO] [stdout]   |       ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `r1`
[INFO] [stdout]   --> src/bin/p2.rs:20:9
[INFO] [stdout]    |
[INFO] [stdout] 20 |     let mut r1 = &s1;
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_r1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `create_copy` is never used
[INFO] [stdout]   --> src/bin/p2.rs:34:4
[INFO] [stdout]    |
[INFO] [stdout] 34 | fn create_copy(int: i32) -> i32 {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `first_word` is never used
[INFO] [stdout]   --> src/bin/p2.rs:41:4
[INFO] [stdout]    |
[INFO] [stdout] 41 | fn first_word(s: &String) -> &str {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `len_of_string` is never used
[INFO] [stdout]   --> src/bin/p2.rs:53:4
[INFO] [stdout]    |
[INFO] [stdout] 53 | fn len_of_string(s:&str) -> usize {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Shoe` is never constructed
[INFO] [stdout]   --> src/bin/p9.rs:31:8
[INFO] [stdout]    |
[INFO] [stdout] 31 | struct Shoe {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `select_by_size` is never used
[INFO] [stdout]   --> src/bin/p9.rs:35:4
[INFO] [stdout]    |
[INFO] [stdout] 35 | fn select_by_size(shoes: Vec<Shoe>, shoe_size: u32) -> Vec<Shoe> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `select_by_brand` is never used
[INFO] [stdout]   --> src/bin/p9.rs:38:4
[INFO] [stdout]    |
[INFO] [stdout] 38 | fn select_by_brand(shoes: Vec<Shoe>, shoe_brand: String) -> Vec<Shoe> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "e422f1101647e6b41a12ce6ed4869d871a91a4ad96b3602f0e1e36807f566bf0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e422f1101647e6b41a12ce6ed4869d871a91a4ad96b3602f0e1e36807f566bf0", kill_on_drop: false }`
[INFO] [stdout] e422f1101647e6b41a12ce6ed4869d871a91a4ad96b3602f0e1e36807f566bf0
