[INFO] cloning repository https://github.com/jfeldman325/Rust-Learning-Examples
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jfeldman325/Rust-Learning-Examples" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjfeldman325%2FRust-Learning-Examples", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjfeldman325%2FRust-Learning-Examples'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b32ce13aa45e32e6b5473a7ae44a9897c30e6af0
[INFO] building jfeldman325/Rust-Learning-Examples against master#ff34b919075f35a1787659e9c448a34b06bab8de for issue-85264
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjfeldman325%2FRust-Learning-Examples" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jfeldman325/Rust-Learning-Examples on toolchain ff34b919075f35a1787659e9c448a34b06bab8de
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ff34b919075f35a1787659e9c448a34b06bab8de" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jfeldman325/Rust-Learning-Examples
[INFO] finished tweaking git repo https://github.com/jfeldman325/Rust-Learning-Examples
[INFO] tweaked toml for git repo https://github.com/jfeldman325/Rust-Learning-Examples written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/jfeldman325/Rust-Learning-Examples already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ff34b919075f35a1787659e9c448a34b06bab8de" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ff34b919075f35a1787659e9c448a34b06bab8de" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6da5306e51dbbd73bbb6969e48359c5eb2ff534743e6c3860bd51b78f577ca98
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "6da5306e51dbbd73bbb6969e48359c5eb2ff534743e6c3860bd51b78f577ca98", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6da5306e51dbbd73bbb6969e48359c5eb2ff534743e6c3860bd51b78f577ca98", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6da5306e51dbbd73bbb6969e48359c5eb2ff534743e6c3860bd51b78f577ca98", kill_on_drop: false }`
[INFO] [stdout] 6da5306e51dbbd73bbb6969e48359c5eb2ff534743e6c3860bd51b78f577ca98
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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=forbid" "-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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ff34b919075f35a1787659e9c448a34b06bab8de" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fc1191e370762994183af7769713e243db3a429afd8e5a298f883e97b7417f12
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "fc1191e370762994183af7769713e243db3a429afd8e5a298f883e97b7417f12", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling syn v1.0.16
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]    Compiling regex-syntax v0.6.17
[INFO] [stderr]    Compiling oorandom v11.1.0
[INFO] [stderr]    Compiling minigrep v0.1.0 (/opt/rustwide/workdir/minigrep)
[INFO] [stderr]    Compiling collections v0.1.0 (/opt/rustwide/workdir/collections)
[INFO] [stderr]    Compiling functions v0.1.0 (/opt/rustwide/workdir/functions)
[INFO] [stderr]    Compiling lifetimes v0.1.0 (/opt/rustwide/workdir/lifetimes)
[INFO] [stderr]    Compiling iterators v0.1.0 (/opt/rustwide/workdir/iterators)
[INFO] [stderr]    Compiling loops v0.1.0 (/opt/rustwide/workdir/loops)
[INFO] [stderr]    Compiling traits v0.1.0 (/opt/rustwide/workdir/traits)
[INFO] [stderr]    Compiling smart_pointers v0.1.0 (/opt/rustwide/workdir/smart_pointers)
[INFO] [stderr]    Compiling resaurant v0.1.0 (/opt/rustwide/workdir/restaurant)
[INFO] [stderr]    Compiling errors v0.1.0 (/opt/rustwide/workdir/errors)
[INFO] [stderr]    Compiling ownership v0.1.0 (/opt/rustwide/workdir/ownership)
[INFO] [stderr]    Compiling Enums v0.1.0 (/opt/rustwide/workdir/enums)
[INFO] [stderr]    Compiling structs v0.1.0 (/opt/rustwide/workdir/structs)
[INFO] [stderr]    Compiling generics v0.1.0 (/opt/rustwide/workdir/generics)
[INFO] [stderr]    Compiling closures v0.1.0 (/opt/rustwide/workdir/closures)
[INFO] [stderr]    Compiling itertools v0.8.2
[INFO] [stderr]    Compiling proc-macro2 v1.0.9
[INFO] [stderr]    Compiling regex-automata v0.1.9
[INFO] [stderr]    Compiling serde_json v1.0.48
[INFO] [stderr]    Compiling rand v0.5.6
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stdout] warning: unused import: `std::convert::TryInto`
[INFO] [stdout]    --> collections/src/main.rs:116:5
[INFO] [stdout]     |
[INFO] [stdout] 116 | use std::convert::TryInto;
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `thread`, `time`
[INFO] [stdout]    --> collections/src/main.rs:117:11
[INFO] [stdout]     |
[INFO] [stdout] 117 | use std::{thread, time};
[INFO] [stdout]     |           ^^^^^^  ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Write`, `self`
[INFO] [stdout]  --> restaurant/src/lib.rs:3:15
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::io::{self, Write};
[INFO] [stdout]   |               ^^^^  ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `seat_at_table`
[INFO] [stdout]  --> restaurant/src/front_of_house.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 |     fn seat_at_table() {}
[INFO] [stdout]   |        ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `take_order`
[INFO] [stdout]  --> restaurant/src/front_of_house.rs:6:8
[INFO] [stdout]   |
[INFO] [stdout] 6 |     fn take_order() {}
[INFO] [stdout]   |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `take_payment`
[INFO] [stdout]  --> restaurant/src/front_of_house.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 8 |     fn take_payment() {}
[INFO] [stdout]   |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `fix_incorrect_order`
[INFO] [stdout]  --> restaurant/src/lib.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 |         fn fix_incorrect_order() {
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `cook_order`
[INFO] [stdout]   --> restaurant/src/lib.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 12 |         fn cook_order() {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `Rc_List` should have an upper camel case name
[INFO] [stdout]   --> smart_pointers/src/main.rs:68:6
[INFO] [stdout]    |
[INFO] [stdout] 68 | enum Rc_List {
[INFO] [stdout]    |      ^^^^^^^ help: convert the identifier to upper camel case: `RcList`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Rc_Cons` should have an upper camel case name
[INFO] [stdout]   --> smart_pointers/src/main.rs:69:5
[INFO] [stdout]    |
[INFO] [stdout] 69 |     Rc_Cons(RefCell<i32>, Rc<Rc_List>),
[INFO] [stdout]    |     ^^^^^^^ help: convert the identifier to upper camel case: `RcCons`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Rc_Nil` should have an upper camel case name
[INFO] [stdout]   --> smart_pointers/src/main.rs:70:5
[INFO] [stdout]    |
[INFO] [stdout] 70 |     Rc_Nil,
[INFO] [stdout]    |     ^^^^^^ help: convert the identifier to upper camel case: `RcNil`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `list`
[INFO] [stdout]   --> smart_pointers/src/main.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout] 12 |     let list = Cons(1, Box::new(Cons(2, Box::new(Cons(3, Box::new(Nil))))));
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_list`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]   --> smart_pointers/src/main.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 14 |     let x = 5;
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `b`
[INFO] [stdout]   --> smart_pointers/src/main.rs:26:9
[INFO] [stdout]    |
[INFO] [stdout] 26 |     let b = Cons(3, Box::new(a));
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `b_rc`
[INFO] [stdout]   --> smart_pointers/src/main.rs:34:9
[INFO] [stdout]    |
[INFO] [stdout] 34 |     let b_rc = Rc_Cons(RefCell::new(3), Rc::clone(&a_rc));
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_b_rc`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `c_rc`
[INFO] [stdout]   --> smart_pointers/src/main.rs:41:13
[INFO] [stdout]    |
[INFO] [stdout] 41 |         let c_rc = Rc_Cons(RefCell::new(4), Rc::clone(&a_rc));
[INFO] [stdout]    |             ^^^^ help: if this is intentional, prefix it with an underscore: `_c_rc`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `list`
[INFO] [stdout]   --> smart_pointers/src/main.rs:55:24
[INFO] [stdout]    |
[INFO] [stdout] 55 |         Rc_Cons(value, list) => *value.borrow_mut() += 10,
[INFO] [stdout]    |                        ^^^^ help: if this is intentional, prefix it with an underscore: `_list`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `tweet`
[INFO] [stdout]   --> traits/src/main.rs:29:9
[INFO] [stdout]    |
[INFO] [stdout] 29 |     let tweet = Tweet {
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_tweet`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `ImportantExcerpt`
[INFO] [stdout]   --> lifetimes/src/main.rs:22:8
[INFO] [stdout]    |
[INFO] [stdout] 22 | struct ImportantExcerpt<'a> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `longest_with_an_announcement`
[INFO] [stdout]   --> lifetimes/src/main.rs:27:8
[INFO] [stdout]    |
[INFO] [stdout] 27 |     fn longest_with_an_announcement<T>(x: &'a str, y: &'a str, ann: T) -> &'a str
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0515]: cannot return value referencing temporary value
[INFO] [stdout]  --> traits/src/main.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 |         &self.summarize()[0..4]
[INFO] [stdout]   |         ^----------------^^^^^^
[INFO] [stdout]   |         ||
[INFO] [stdout]   |         |temporary value created here
[INFO] [stdout]   |         returns a value referencing data owned by the current function
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0515`.
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `traits`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning[E0170]: pattern binding `Slayer` is named the same as one of the variants of the type `GameType`
[INFO] [stdout]   --> collections/src/main.rs:85:13
[INFO] [stdout]    |
[INFO] [stdout] 85 |             Slayer => Lobby {
[INFO] [stdout]    |             ^^^^^^ help: to match on the variant, qualify the path: `GameType::Slayer`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bindings_with_variant_name)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning[E0170]: pattern binding `BigTeamBattles` is named the same as one of the variants of the type `GameType`
[INFO] [stdout]   --> collections/src/main.rs:91:13
[INFO] [stdout]    |
[INFO] [stdout] 91 |             BigTeamBattles => Lobby {
[INFO] [stdout]    |             ^^^^^^^^^^^^^^ help: to match on the variant, qualify the path: `GameType::BigTeamBattles`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning[E0170]: pattern binding `L33t` is named the same as one of the variants of the type `GameType`
[INFO] [stdout]   --> collections/src/main.rs:97:13
[INFO] [stdout]    |
[INFO] [stdout] 97 |             L33t => Lobby {
[INFO] [stdout]    |             ^^^^ help: to match on the variant, qualify the path: `GameType::L33t`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> collections/src/main.rs:91:13
[INFO] [stdout]    |
[INFO] [stdout] 85 |             Slayer => Lobby {
[INFO] [stdout]    |             ------ matches any value
[INFO] [stdout] ...
[INFO] [stdout] 91 |             BigTeamBattles => Lobby {
[INFO] [stdout]    |             ^^^^^^^^^^^^^^ unreachable pattern
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> collections/src/main.rs:97:13
[INFO] [stdout]    |
[INFO] [stdout] 85 |             Slayer => Lobby {
[INFO] [stdout]    |             ------ matches any value
[INFO] [stdout] ...
[INFO] [stdout] 97 |             L33t => Lobby {
[INFO] [stdout]    |             ^^^^ unreachable pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `new_team`
[INFO] [stdout]    --> collections/src/main.rs:132:25
[INFO] [stdout]     |
[INFO] [stdout] 132 |                 let mut new_team = Team::new(&mut new_player);
[INFO] [stdout]     |                         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_new_team`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `final_copy`
[INFO] [stdout]    --> collections/src/main.rs:200:13
[INFO] [stdout]     |
[INFO] [stdout] 200 |     let mut final_copy = &latest[0..=33]; //When the CEO want's something pithier not
[INFO] [stdout]     |             ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_final_copy`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `player`
[INFO] [stdout]   --> collections/src/main.rs:15:30
[INFO] [stdout]    |
[INFO] [stdout] 15 |     fn add_player(&mut self, player: &Player) {
[INFO] [stdout]    |                              ^^^^^^ help: if this is intentional, prefix it with an underscore: `_player`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `Slayer`
[INFO] [stdout]   --> collections/src/main.rs:85:13
[INFO] [stdout]    |
[INFO] [stdout] 85 |             Slayer => Lobby {
[INFO] [stdout]    |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_Slayer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `BigTeamBattles`
[INFO] [stdout]   --> collections/src/main.rs:91:13
[INFO] [stdout]    |
[INFO] [stdout] 91 |             BigTeamBattles => Lobby {
[INFO] [stdout]    |             ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_BigTeamBattles`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `L33t`
[INFO] [stdout]   --> collections/src/main.rs:97:13
[INFO] [stdout]    |
[INFO] [stdout] 97 |             L33t => Lobby {
[INFO] [stdout]    |             ^^^^ help: if this is intentional, prefix it with an underscore: `_L33t`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0507]: cannot move out of a shared reference
[INFO] [stdout]   --> collections/src/main.rs:16:33
[INFO] [stdout]    |
[INFO] [stdout] 16 |         for (index, &player) in self.players.iter().enumerate() {
[INFO] [stdout]    |                      ------     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider borrowing the `Option`'s content: `self.players.iter().enumerate().as_ref()`
[INFO] [stdout]    |                      |
[INFO] [stdout]    |                      data moved here
[INFO] [stdout]    |                      move occurs because `player` has type `Option<&mut Player<'_>>`, which does not implement the `Copy` trait
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `point` should have an upper camel case name
[INFO] [stdout]   --> generics/src/main.rs:24:8
[INFO] [stdout]    |
[INFO] [stdout] 24 | struct point<U, V> {
[INFO] [stdout]    |        ^^^^^ help: convert the identifier to upper camel case: `Point`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0506]: cannot assign to `self.players[_]` because it is borrowed
[INFO] [stdout]   --> collections/src/main.rs:18:25
[INFO] [stdout]    |
[INFO] [stdout] 16 |         for (index, &player) in self.players.iter().enumerate() {
[INFO] [stdout]    |                                 -------------------------------
[INFO] [stdout]    |                                 |
[INFO] [stdout]    |                                 borrow of `self.players[_]` occurs here
[INFO] [stdout]    |                                 borrow later used here
[INFO] [stdout] 17 |             match &player {
[INFO] [stdout] 18 |                 None => self.players[index] = player,
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ assignment to borrowed `self.players[_]` occurs here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f`
[INFO] [stdout]   --> errors/src/main.rs:21:9
[INFO] [stdout]    |
[INFO] [stdout] 21 |     let f = read_file("Hello.txt".to_string());
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `largest_with_copy`
[INFO] [stdout]   --> generics/src/main.rs:62:4
[INFO] [stdout]    |
[INFO] [stdout] 62 | fn largest_with_copy<T>(list: &[T]) -> T
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `simulated_expensive_calculation`
[INFO] [stdout]   --> closures/src/main.rs:72:4
[INFO] [stdout]    |
[INFO] [stdout] 72 | fn simulated_expensive_calculation(intensity: u32) -> u32 {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `four`
[INFO] [stdout]   --> enums/src/main.rs:40:9
[INFO] [stdout]    |
[INFO] [stdout] 40 |     let four = IpaddrKind::V4;
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_four`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `six`
[INFO] [stdout]   --> enums/src/main.rs:41:9
[INFO] [stdout]    |
[INFO] [stdout] 41 |     let six = IpaddrKind::V6;
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_six`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `version`
[INFO] [stdout]  --> enums/src/main.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     version: IpaddrKind,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `address`
[INFO] [stdout]  --> enums/src/main.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     address: String,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new_v6`
[INFO] [stdout]   --> enums/src/main.rs:34:8
[INFO] [stdout]    |
[INFO] [stdout] 34 |     fn new_v6(address: String, mask: Option<String>) -> IpAddr {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: crate `Enums` should have a snake case name
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout]   = help: convert the identifier to snake case: `enums`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `user1`
[INFO] [stdout]   --> structs/src/main.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout] 12 |     let user1 = new_user(
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_user1`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `square`
[INFO] [stdout]   --> structs/src/rectangles.rs:31:8
[INFO] [stdout]    |
[INFO] [stdout] 31 |     fn square(side: i32) -> Rectangle {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `username`
[INFO] [stdout]  --> structs/src/main.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     username: String,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `email`
[INFO] [stdout]  --> structs/src/main.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     email: String,
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `active`
[INFO] [stdout]  --> structs/src/main.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     active: bool,
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `sign_in_count`
[INFO] [stdout]  --> structs/src/main.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     sign_in_count: u32,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `Option<&mut Player<'_>>: Copy` is not satisfied
[INFO] [stdout]   --> collections/src/main.rs:33:27
[INFO] [stdout]    |
[INFO] [stdout] 33 |         let mut players = [None; 32];
[INFO] [stdout]    |                           ^^^^^^^^^^ the trait `Copy` is not implemented for `Option<&mut Player<'_>>`
[INFO] [stdout]    |
[INFO] [stdout]    = help: the following implementations were found:
[INFO] [stdout]              <Option<T> as Copy>
[INFO] [stdout]    = note: the `Copy` trait is required because the repeated element will be copied
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0382]: use of moved value: `game_type`
[INFO] [stdout]   --> collections/src/main.rs:86:17
[INFO] [stdout]    |
[INFO] [stdout] 83 |     fn new(game_type: GameType) -> Lobby<'static> {
[INFO] [stdout]    |            --------- move occurs because `game_type` has type `GameType`, which does not implement the `Copy` trait
[INFO] [stdout] 84 |         match game_type {
[INFO] [stdout] 85 |             Slayer => Lobby {
[INFO] [stdout]    |             ------ value moved here
[INFO] [stdout] 86 |                 game_type,
[INFO] [stdout]    |                 ^^^^^^^^^ value used here after move
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0382]: use of moved value: `game_type`
[INFO] [stdout]   --> collections/src/main.rs:92:17
[INFO] [stdout]    |
[INFO] [stdout] 83 |     fn new(game_type: GameType) -> Lobby<'static> {
[INFO] [stdout]    |            --------- move occurs because `game_type` has type `GameType`, which does not implement the `Copy` trait
[INFO] [stdout] ...
[INFO] [stdout] 91 |             BigTeamBattles => Lobby {
[INFO] [stdout]    |             -------------- value moved here
[INFO] [stdout] 92 |                 game_type,
[INFO] [stdout]    |                 ^^^^^^^^^ value used here after move
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0382]: use of moved value: `game_type`
[INFO] [stdout]   --> collections/src/main.rs:98:17
[INFO] [stdout]    |
[INFO] [stdout] 83 |     fn new(game_type: GameType) -> Lobby<'static> {
[INFO] [stdout]    |            --------- move occurs because `game_type` has type `GameType`, which does not implement the `Copy` trait
[INFO] [stdout] ...
[INFO] [stdout] 97 |             L33t => Lobby {
[INFO] [stdout]    |             ---- value moved here
[INFO] [stdout] 98 |                 game_type,
[INFO] [stdout]    |                 ^^^^^^^^^ value used here after move
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> collections/src/main.rs:132:21
[INFO] [stdout]     |
[INFO] [stdout] 132 |                 let mut new_team = Team::new(&mut new_player);
[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] error[E0596]: cannot borrow `*team` as mutable, as it is behind a `&` reference
[INFO] [stdout]    --> collections/src/main.rs:128:22
[INFO] [stdout]     |
[INFO] [stdout] 128 |                     &team.add_player(&mut new_player);
[INFO] [stdout]     |                      ^^^^ `team` is a `&` reference, so the data it refers to cannot be borrowed as mutable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0499]: cannot borrow `new_player` as mutable more than once at a time
[INFO] [stdout]    --> collections/src/main.rs:128:38
[INFO] [stdout]     |
[INFO] [stdout] 128 |                     &team.add_player(&mut new_player);
[INFO] [stdout]     |                                      ^^^^^^^^^^^^^^^ second mutable borrow occurs here
[INFO] [stdout] ...
[INFO] [stdout] 132 |                 let mut new_team = Team::new(&mut new_player);
[INFO] [stdout]     |                                    --------------------------
[INFO] [stdout]     |                                    |         |
[INFO] [stdout]     |                                    |         first mutable borrow occurs here
[INFO] [stdout]     |                                    argument requires that `new_player` is borrowed for `'static`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0499]: cannot borrow `new_player` as mutable more than once at a time
[INFO] [stdout]    --> collections/src/main.rs:132:46
[INFO] [stdout]     |
[INFO] [stdout] 132 |                 let mut new_team = Team::new(&mut new_player);
[INFO] [stdout]     |                                    ----------^^^^^^^^^^^^^^^-
[INFO] [stdout]     |                                    |         |
[INFO] [stdout]     |                                    |         `new_player` was mutably borrowed here in the previous iteration of the loop
[INFO] [stdout]     |                                    argument requires that `new_player` is borrowed for `'static`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> collections/src/main.rs:200:9
[INFO] [stdout]     |
[INFO] [stdout] 200 |     let mut final_copy = &latest[0..=33]; //When the CEO want's something pithier not
[INFO] [stdout]     |         ----^^^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 9 previous errors; 15 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0170, E0277, E0382, E0499, E0506, E0507, E0596.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0170`.
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `iter_mut` found for struct `Counter` in the current scope
[INFO] [stdout]   --> iterators/src/main.rs:27:32
[INFO] [stdout]    |
[INFO] [stdout] 27 |     let counter_iter = counter.iter_mut();
[INFO] [stdout]    |                                ^^^^^^^^ method not found in `Counter`
[INFO] [stdout] ...
[INFO] [stdout] 30 | struct Counter {
[INFO] [stdout]    | -------------- method `iter_mut` not found for this
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0599`.
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "fc1191e370762994183af7769713e243db3a429afd8e5a298f883e97b7417f12", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fc1191e370762994183af7769713e243db3a429afd8e5a298f883e97b7417f12", kill_on_drop: false }`
[INFO] [stdout] fc1191e370762994183af7769713e243db3a429afd8e5a298f883e97b7417f12
