[INFO] cloning repository https://github.com/Amaan1234567/rust_practise
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Amaan1234567/rust_practise" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAmaan1234567%2Frust_practise", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAmaan1234567%2Frust_practise'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7790d5019e25f0974177b7d472245ba3af0b00b8
[INFO] checking Amaan1234567/rust_practise against master#04ff05c9c0cfbca33115c5f1b8bb20a66a54b799 for pr-147834
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAmaan1234567%2Frust_practise" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Amaan1234567/rust_practise
[INFO] finished tweaking git repo https://github.com/Amaan1234567/rust_practise
[INFO] tweaked toml for git repo https://github.com/Amaan1234567/rust_practise written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Amaan1234567/rust_practise on toolchain 04ff05c9c0cfbca33115c5f1b8bb20a66a54b799
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+04ff05c9c0cfbca33115c5f1b8bb20a66a54b799" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Amaan1234567/rust_practise 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" "+04ff05c9c0cfbca33115c5f1b8bb20a66a54b799" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr] warning: spurious network error (3 tries remaining): [35] SSL connect error (Send failure: Connection reset by peer)
[INFO] [stderr]   Downloaded getopts v0.2.23
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+04ff05c9c0cfbca33115c5f1b8bb20a66a54b799" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9e0357030078465f084351e9ae1324d8d4bf6bbc8820e07f015343c22e94bf3b
[INFO] running `Command { std: "docker" "start" "-a" "9e0357030078465f084351e9ae1324d8d4bf6bbc8820e07f015343c22e94bf3b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9e0357030078465f084351e9ae1324d8d4bf6bbc8820e07f015343c22e94bf3b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9e0357030078465f084351e9ae1324d8d4bf6bbc8820e07f015343c22e94bf3b", kill_on_drop: false }`
[INFO] [stdout] 9e0357030078465f084351e9ae1324d8d4bf6bbc8820e07f015343c22e94bf3b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+04ff05c9c0cfbca33115c5f1b8bb20a66a54b799" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6df094295e2588970bcce682116641c77c60997e920ddfbd2305794115c98a6f
[INFO] running `Command { std: "docker" "start" "-a" "6df094295e2588970bcce682116641c77c60997e920ddfbd2305794115c98a6f", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v2.0.104
[INFO] [stderr]    Compiling libc v0.2.174
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]     Checking smallvec v1.15.1
[INFO] [stderr]    Compiling phf_shared v0.11.3
[INFO] [stderr]    Compiling cc v1.2.29
[INFO] [stderr]     Checking slab v0.4.10
[INFO] [stderr]     Checking memchr v2.7.5
[INFO] [stderr]    Compiling zerocopy v0.8.26
[INFO] [stderr]     Checking bitflags v2.9.1
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling siphasher v0.3.11
[INFO] [stderr]     Checking tracing-core v0.1.34
[INFO] [stderr]    Compiling openssl v0.10.73
[INFO] [stderr]     Checking hashbrown v0.15.4
[INFO] [stderr]     Checking lock_api v0.4.13
[INFO] [stderr]    Compiling phf_shared v0.10.0
[INFO] [stderr]     Checking mac v0.1.1
[INFO] [stderr]     Checking precomputed-hash v0.1.1
[INFO] [stderr]     Checking futf v0.1.5
[INFO] [stderr]     Checking dtoa v1.0.10
[INFO] [stderr]     Checking fxhash v0.2.1
[INFO] [stderr]     Checking servo_arc v0.3.0
[INFO] [stderr]     Checking dtoa-short v0.3.5
[INFO] [stderr]     Checking unicode-ident v1.0.18
[INFO] [stderr]     Checking getopts v0.2.23
[INFO] [stderr]     Checking tendril v0.4.3
[INFO] [stderr]     Checking phf v0.10.1
[INFO] [stderr]     Checking ego-tree v0.6.3
[INFO] [stderr]     Checking hello_macro v0.1.0 (/opt/rustwide/workdir/hello_macro)
[INFO] [stderr]     Checking proc-macro2 v1.0.95
[INFO] [stderr]     Checking minigrep v0.1.0 (/opt/rustwide/workdir/minigrep)
[INFO] [stderr]     Checking smart_pointers v0.1.0 (/opt/rustwide/workdir/smart_pointers)
[INFO] [stderr]     Checking webserver v0.1.0 (/opt/rustwide/workdir/webserver)
[INFO] [stderr]     Checking blog v0.1.0 (/opt/rustwide/workdir/blog)
[INFO] [stdout] warning: unused import: `Receiver`
[INFO] [stdout]  --> webserver/src/lib.rs:1:31
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{sync::{mpsc::{self, Receiver}, Arc, Mutex},thread};
[INFO] [stdout]   |                               ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking tracing v0.1.41
[INFO] [stdout] warning: unused variable: `post`
[INFO] [stdout]   --> blog/src/lib.rs:43:26
[INFO] [stdout]    |
[INFO] [stdout] 43 |     fn content<'a>(&self,post: &'a Post) -> &'a str {
[INFO] [stdout]    |                          ^^^^ help: if this is intentional, prefix it with an underscore: `_post`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Edit` is never used
[INFO] [stdout]   --> blog/src/lib.rs:48:7
[INFO] [stdout]    |
[INFO] [stdout] 48 | trait Edit {
[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 `reject` is never used
[INFO] [stdout]   --> blog/src/lib.rs:71:8
[INFO] [stdout]    |
[INFO] [stdout] 70 | impl PendingReview {
[INFO] [stdout]    | ------------------ method in this implementation
[INFO] [stdout] 71 |     fn reject(self:Box<Self>) -> Box<dyn State> {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking oop v0.1.0 (/opt/rustwide/workdir/oop)
[INFO] [stdout] warning: fields `width`, `height`, and `options` are never read
[INFO] [stdout]   --> oop/src/main.rs:64:5
[INFO] [stdout]    |
[INFO] [stdout] 63 | struct SelectBox {
[INFO] [stdout]    |        --------- fields in this struct
[INFO] [stdout] 64 |     width: u32,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 65 |     height: u32,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 66 |     options: Vec<String>,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking advanced_features v0.1.0 (/opt/rustwide/workdir/advanced_features)
[INFO] [stdout] warning: unused imports: `Ref` and `fs::ReadDir`
[INFO] [stdout]  --> smart_pointers/src/main.rs:2:18
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::{cell::{Ref, RefCell}, fs::ReadDir, ops::Deref, rc::{Rc, Weak}};
[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 variable: `d`
[INFO] [stdout]   --> smart_pointers/src/main.rs:95:9
[INFO] [stdout]    |
[INFO] [stdout] 95 |     let d = CustomSmartPointer {
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_d`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> smart_pointers/src/main.rs:19:10
[INFO] [stdout]    |
[INFO] [stdout] 19 |     Cons(i32,RefCell<Rc<List>>),
[INFO] [stdout]    |     ---- ^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `List` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[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] 19 -     Cons(i32,RefCell<Rc<List>>),
[INFO] [stdout] 19 +     Cons((),RefCell<Rc<List>>),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `value` and `children` are never read
[INFO] [stdout]   --> smart_pointers/src/main.rs:64:5
[INFO] [stdout]    |
[INFO] [stdout] 63 | struct Node {
[INFO] [stdout]    |        ---- fields in this struct
[INFO] [stdout] 64 |     value:i32,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 65 |     children: RefCell<Vec<Rc<Node>>>,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Node` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking add_two v0.1.0 (/opt/rustwide/workdir/add_two)
[INFO] [stderr]     Checking fearless_concurrency v0.1.0 (/opt/rustwide/workdir/fearless_concurrency)
[INFO] [stderr]     Checking patterns_and_matching v0.1.0 (/opt/rustwide/workdir/patterns_and_matching)
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]    --> patterns_and_matching/src/main.rs:141:9
[INFO] [stdout]     |
[INFO] [stdout] 141 |     let y = 10;
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Rgb` is never constructed
[INFO] [stdout]    --> patterns_and_matching/src/main.rs:205:5
[INFO] [stdout]     |
[INFO] [stdout] 204 | enum Color {
[INFO] [stdout]     |      ----- variant in this enum
[INFO] [stdout] 205 |     Rgb(i32,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: variants `Quit`, `Move`, and `Write` are never constructed
[INFO] [stdout]    --> patterns_and_matching/src/main.rs:210:5
[INFO] [stdout]     |
[INFO] [stdout] 209 | enum Message2 {
[INFO] [stdout]     |      -------- variants in this enum
[INFO] [stdout] 210 |     Quit,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] 211 |     Move {x:i32, y: i32},
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] 212 |     Write(String),
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Quit`, `Move`, and `Write` are never constructed
[INFO] [stdout]    --> patterns_and_matching/src/main.rs:217:5
[INFO] [stdout]     |
[INFO] [stdout] 216 | enum Message {
[INFO] [stdout]     |      ------- variants in this enum
[INFO] [stdout] 217 |     Quit,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] 218 |     Move {x:i32, y: i32},
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] 219 |     Write(String),
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `y` and `z` are never read
[INFO] [stdout]    --> patterns_and_matching/src/main.rs:230:5
[INFO] [stdout]     |
[INFO] [stdout] 228 | struct Point2 {
[INFO] [stdout]     |        ------ fields in this struct
[INFO] [stdout] 229 |     x:i32,
[INFO] [stdout] 230 |     y:i32,
[INFO] [stdout]     |     ^
[INFO] [stdout] 231 |     z:i32,
[INFO] [stdout]     |     ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Ref` and `fs::ReadDir`
[INFO] [stdout]  --> smart_pointers/src/main.rs:2:18
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::{cell::{Ref, RefCell}, fs::ReadDir, ops::Deref, rc::{Rc, Weak}};
[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 variable: `r`
[INFO] [stdout]   --> advanced_features/src/main.rs:88:9
[INFO] [stdout]    |
[INFO] [stdout] 88 |     let r = address as *const i32;
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_r`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `split_at_mut` is never used
[INFO] [stdout]  --> advanced_features/src/main.rs:5:4
[INFO] [stdout]   |
[INFO] [stdout] 5 | fn split_at_mut(values: &mut [i32], mid: usize) -> (&mut [i32], &mut [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: struct `Counter` is never constructed
[INFO] [stdout]   --> advanced_features/src/main.rs:19:8
[INFO] [stdout]    |
[INFO] [stdout] 19 | struct Counter;
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `baby_name` is never used
[INFO] [stdout]   --> advanced_features/src/main.rs:62:8
[INFO] [stdout]    |
[INFO] [stdout] 61 | impl Dog {
[INFO] [stdout]    | -------- associated function in this implementation
[INFO] [stdout] 62 |     fn baby_name() -> String {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `width`, `height`, and `options` are never read
[INFO] [stdout]   --> oop/src/main.rs:64:5
[INFO] [stdout]    |
[INFO] [stdout] 63 | struct SelectBox {
[INFO] [stdout]    |        --------- fields in this struct
[INFO] [stdout] 64 |     width: u32,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 65 |     height: u32,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 66 |     options: Vec<String>,
[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 import: `std::rc::Rc`
[INFO] [stdout]  --> fearless_concurrency/src/main.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::rc::Rc;
[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 variable: `r`
[INFO] [stdout]   --> advanced_features/src/main.rs:88:9
[INFO] [stdout]    |
[INFO] [stdout] 88 |     let r = address as *const i32;
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_r`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `split_at_mut` is never used
[INFO] [stdout]  --> advanced_features/src/main.rs:5:4
[INFO] [stdout]   |
[INFO] [stdout] 5 | fn split_at_mut(values: &mut [i32], mid: usize) -> (&mut [i32], &mut [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: struct `Counter` is never constructed
[INFO] [stdout]   --> advanced_features/src/main.rs:19:8
[INFO] [stdout]    |
[INFO] [stdout] 19 | struct Counter;
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `baby_name` is never used
[INFO] [stdout]   --> advanced_features/src/main.rs:62:8
[INFO] [stdout]    |
[INFO] [stdout] 61 | impl Dog {
[INFO] [stdout]    | -------- associated function in this implementation
[INFO] [stdout] 62 |     fn baby_name() -> String {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking indexmap v2.10.0
[INFO] [stdout] warning: unused variable: `d`
[INFO] [stdout]   --> smart_pointers/src/main.rs:95:9
[INFO] [stdout]    |
[INFO] [stdout] 95 |     let d = CustomSmartPointer {
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_d`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> smart_pointers/src/main.rs:19:10
[INFO] [stdout]    |
[INFO] [stdout] 19 |     Cons(i32,RefCell<Rc<List>>),
[INFO] [stdout]    |     ---- ^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `List` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[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] 19 -     Cons(i32,RefCell<Rc<List>>),
[INFO] [stdout] 19 +     Cons((),RefCell<Rc<List>>),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `value` and `children` are never read
[INFO] [stdout]   --> smart_pointers/src/main.rs:64:5
[INFO] [stdout]    |
[INFO] [stdout] 63 | struct Node {
[INFO] [stdout]    |        ---- fields in this struct
[INFO] [stdout] 64 |     value:i32,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 65 |     children: RefCell<Vec<Rc<Node>>>,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Node` 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::rc::Rc`
[INFO] [stdout]  --> fearless_concurrency/src/main.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::rc::Rc;
[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: `Receiver`
[INFO] [stdout]  --> webserver/src/lib.rs:1:31
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{sync::{mpsc::{self, Receiver}, Arc, Mutex},thread};
[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 variable: `y`
[INFO] [stdout]    --> patterns_and_matching/src/main.rs:141:9
[INFO] [stdout]     |
[INFO] [stdout] 141 |     let y = 10;
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Rgb` is never constructed
[INFO] [stdout]    --> patterns_and_matching/src/main.rs:205:5
[INFO] [stdout]     |
[INFO] [stdout] 204 | enum Color {
[INFO] [stdout]     |      ----- variant in this enum
[INFO] [stdout] 205 |     Rgb(i32,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: variants `Quit`, `Move`, and `Write` are never constructed
[INFO] [stdout]    --> patterns_and_matching/src/main.rs:210:5
[INFO] [stdout]     |
[INFO] [stdout] 209 | enum Message2 {
[INFO] [stdout]     |      -------- variants in this enum
[INFO] [stdout] 210 |     Quit,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] 211 |     Move {x:i32, y: i32},
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] 212 |     Write(String),
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Quit`, `Move`, and `Write` are never constructed
[INFO] [stdout]    --> patterns_and_matching/src/main.rs:217:5
[INFO] [stdout]     |
[INFO] [stdout] 216 | enum Message {
[INFO] [stdout]     |      ------- variants in this enum
[INFO] [stdout] 217 |     Quit,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] 218 |     Move {x:i32, y: i32},
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] 219 |     Write(String),
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `y` and `z` are never read
[INFO] [stdout]    --> patterns_and_matching/src/main.rs:230:5
[INFO] [stdout]     |
[INFO] [stdout] 228 | struct Point2 {
[INFO] [stdout]     |        ------ fields in this struct
[INFO] [stdout] 229 |     x:i32,
[INFO] [stdout] 230 |     y:i32,
[INFO] [stdout]     |     ^
[INFO] [stdout] 231 |     z:i32,
[INFO] [stdout]     |     ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `post`
[INFO] [stdout]   --> blog/src/lib.rs:43:26
[INFO] [stdout]    |
[INFO] [stdout] 43 |     fn content<'a>(&self,post: &'a Post) -> &'a str {
[INFO] [stdout]    |                          ^^^^ help: if this is intentional, prefix it with an underscore: `_post`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Edit` is never used
[INFO] [stdout]   --> blog/src/lib.rs:48:7
[INFO] [stdout]    |
[INFO] [stdout] 48 | trait Edit {
[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 `reject` is never used
[INFO] [stdout]   --> blog/src/lib.rs:71:8
[INFO] [stdout]    |
[INFO] [stdout] 70 | impl PendingReview {
[INFO] [stdout]    | ------------------ method in this implementation
[INFO] [stdout] 71 |     fn reject(self:Box<Self>) -> Box<dyn State> {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking quote v1.0.40
[INFO] [stderr]    Compiling getrandom v0.2.16
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]     Checking mio v1.0.4
[INFO] [stderr]     Checking socket2 v0.5.10
[INFO] [stderr]     Checking parking_lot_core v0.9.11
[INFO] [stderr]     Checking getrandom v0.3.3
[INFO] [stderr]    Compiling openssl-sys v0.9.109
[INFO] [stderr]     Checking ahash v0.8.12
[INFO] [stderr]     Checking parking_lot v0.12.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking tokio v1.46.1
[INFO] [stderr]    Compiling native-tls v0.2.14
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]    Compiling ppv-lite86 v0.2.21
[INFO] [stderr]     Checking add_one v0.1.0 (/opt/rustwide/workdir/add_one)
[INFO] [stdout] warning: unused import: `rand`
[INFO] [stdout]  --> add_one/src/lib.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use rand;
[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: `rand`
[INFO] [stdout]  --> add_one/src/lib.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use rand;
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking adder v0.1.0 (/opt/rustwide/workdir/adder)
[INFO] [stderr]     Checking string_cache v0.8.9
[INFO] [stderr]     Checking serde_urlencoded v0.7.1
[INFO] [stderr]    Compiling phf_generator v0.11.3
[INFO] [stderr]    Compiling phf_generator v0.10.0
[INFO] [stderr]    Compiling phf_codegen v0.10.0
[INFO] [stderr]    Compiling string_cache_codegen v0.5.4
[INFO] [stderr]    Compiling phf_codegen v0.11.3
[INFO] [stderr]    Compiling selectors v0.25.0
[INFO] [stderr]    Compiling markup5ever v0.12.1
[INFO] [stderr]    Compiling synstructure v0.13.2
[INFO] [stderr]    Compiling zerofrom-derive v0.1.6
[INFO] [stderr]    Compiling yoke-derive v0.8.0
[INFO] [stderr]    Compiling zerovec-derive v0.11.1
[INFO] [stderr]    Compiling displaydoc v0.2.5
[INFO] [stderr]    Compiling futures-macro v0.3.31
[INFO] [stderr]    Compiling phf_macros v0.11.3
[INFO] [stderr]    Compiling openssl-macros v0.1.1
[INFO] [stderr]    Compiling cssparser-macros v0.6.1
[INFO] [stderr]    Compiling html5ever v0.27.0
[INFO] [stderr]    Compiling derive_more v0.99.20
[INFO] [stderr]    Compiling hello_macro_derive v0.1.0 (/opt/rustwide/workdir/hello_macro_derive)
[INFO] [stderr]     Checking pancakes v0.1.0 (/opt/rustwide/workdir/pancakes)
[INFO] [stderr]     Checking tokio-util v0.7.15
[INFO] [stderr]     Checking tokio-stream v0.1.17
[INFO] [stdout] error[E0423]: expected function, found macro `println`
[INFO] [stdout]  --> pancakes/src/main.rs:4:10
[INFO] [stdout]   |
[INFO] [stdout] 4 | #[derive(HelloMacro)]
[INFO] [stdout]   |          ^^^^^^^^^^ not a function
[INFO] [stdout]   |
[INFO] [stdout]   = note: this error originates in the derive macro `HelloMacro` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0423`.
[INFO] [stdout] 
[INFO] [stdout] error[E0423]: expected function, found macro `println`
[INFO] [stdout]  --> pancakes/src/main.rs:4:10
[INFO] [stdout]   |
[INFO] [stdout] 4 | #[derive(HelloMacro)]
[INFO] [stdout]   |          ^^^^^^^^^^ not a function
[INFO] [stdout]   |
[INFO] [stdout]   = note: this error originates in the derive macro `HelloMacro` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `pancakes` (bin "pancakes" test) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] For more information about this error, try `rustc --explain E0423`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `pancakes` (bin "pancakes") due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "6df094295e2588970bcce682116641c77c60997e920ddfbd2305794115c98a6f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6df094295e2588970bcce682116641c77c60997e920ddfbd2305794115c98a6f", kill_on_drop: false }`
[INFO] [stdout] 6df094295e2588970bcce682116641c77c60997e920ddfbd2305794115c98a6f
