[INFO] cloning repository https://github.com/oscarbrehier/learning-rust [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/oscarbrehier/learning-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Foscarbrehier%2Flearning-rust", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Foscarbrehier%2Flearning-rust'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 7e591dfb22e41798a2b52e0dd73b6870d6512d2a [INFO] testing oscarbrehier/learning-rust against master#f9988fefd3add01f414f52b414308e7872622fee for pr-155114 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Foscarbrehier%2Flearning-rust" "/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/oscarbrehier/learning-rust [INFO] finished tweaking git repo https://github.com/oscarbrehier/learning-rust [INFO] tweaked toml for git repo https://github.com/oscarbrehier/learning-rust written to /workspace/builds/worker-7-tc1/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/oscarbrehier/learning-rust on toolchain f9988fefd3add01f414f52b414308e7872622fee [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f9988fefd3add01f414f52b414308e7872622fee" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/oscarbrehier/learning-rust 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" "+f9988fefd3add01f414f52b414308e7872622fee" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Downloading crates ... 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v1.0.100 [INFO] [stderr] Downloaded html5ever v0.35.0 [INFO] [stderr] Downloaded jiff-static v0.2.18 [INFO] [stderr] Downloaded handlebars v6.4.0 [INFO] [stderr] Downloaded zerocopy-derive v0.8.38 [INFO] [stderr] Downloaded pest v2.8.5 [INFO] [stderr] Downloaded pulldown-cmark v0.10.3 [INFO] [stderr] Downloaded clap_builder v4.5.57 [INFO] [stderr] Downloaded zerocopy v0.8.38 [INFO] [stderr] Downloaded unicode-width v0.2.2 [INFO] [stderr] Downloaded bstr v1.12.1 [INFO] [stderr] Downloaded jiff v0.2.18 [INFO] [stderr] Downloaded mdbook v0.4.52 [INFO] [stderr] Downloaded pulldown-cmark-to-cmark v15.0.1 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+f9988fefd3add01f414f52b414308e7872622fee" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] d249724d736919af486018cfac3a283e8f900a56be172cfc40feb44fd5ec5ccd [INFO] running `Command { std: "docker" "start" "-a" "d249724d736919af486018cfac3a283e8f900a56be172cfc40feb44fd5ec5ccd", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "d249724d736919af486018cfac3a283e8f900a56be172cfc40feb44fd5ec5ccd", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d249724d736919af486018cfac3a283e8f900a56be172cfc40feb44fd5ec5ccd", kill_on_drop: false }` [INFO] [stdout] d249724d736919af486018cfac3a283e8f900a56be172cfc40feb44fd5ec5ccd [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+f9988fefd3add01f414f52b414308e7872622fee" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 547ee9c3c54d768d5217ffad832c5999ea497f2f3f3b7cf7bc0b15d3d046ffa9 [INFO] running `Command { std: "docker" "start" "-a" "547ee9c3c54d768d5217ffad832c5999ea497f2f3f3b7cf7bc0b15d3d046ffa9", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.106 [INFO] [stderr] Compiling quote v1.0.44 [INFO] [stderr] Compiling unicode-ident v1.0.22 [INFO] [stderr] Compiling libc v0.2.180 [INFO] [stderr] Compiling cfg-if v1.0.4 [INFO] [stderr] Compiling log v0.4.29 [INFO] [stderr] Compiling smallvec v1.15.1 [INFO] [stderr] Compiling parking_lot_core v0.9.12 [INFO] [stderr] Compiling scopeguard v1.2.0 [INFO] [stderr] Compiling memchr v2.7.6 [INFO] [stderr] Compiling bytes v1.11.1 [INFO] [stderr] Compiling 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Compiling either v1.15.0 [INFO] [stderr] Compiling packages v0.1.0 (/opt/rustwide/workdir/exercises/05_ticket_v2/10_packages) [INFO] [stderr] Compiling deps v0.1.0 (/opt/rustwide/workdir/exercises/05_ticket_v2/11_dependencies) [INFO] [stdout] warning: unused import: `anyhow::Error` [INFO] [stdout] --> exercises/05_ticket_v2/11_dependencies/src/lib.rs:6:5 [INFO] [stdout] | [INFO] [stdout] 6 | use anyhow::Error; [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling fallibility v0.1.0 (/opt/rustwide/workdir/exercises/05_ticket_v2/06_fallibility) [INFO] [stdout] warning: struct `Ticket` is never constructed [INFO] [stdout] --> exercises/05_ticket_v2/06_fallibility/src/lib.rs:5:8 [INFO] [stdout] | [INFO] [stdout] 5 | struct Ticket { [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 `Status` is never used [INFO] [stdout] --> exercises/05_ticket_v2/06_fallibility/src/lib.rs:12:6 [INFO] [stdout] | [INFO] [stdout] 12 | enum Status { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `new` is never used [INFO] [stdout] --> exercises/05_ticket_v2/06_fallibility/src/lib.rs:19:12 [INFO] [stdout] | [INFO] [stdout] 18 | impl Ticket { [INFO] [stdout] | ----------- associated function in this implementation [INFO] [stdout] 19 | pub fn new(title: String, description: String, status: Status) -> Result { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling getopts v0.2.24 [INFO] [stderr] Compiling variables v0.1.0 (/opt/rustwide/workdir/exercises/02_basic_calculator/02_variables) [INFO] [stderr] Compiling resizing v0.1.0 (/opt/rustwide/workdir/exercises/06_ticket_management/03_resizing) [INFO] [stderr] Compiling unwrap v0.1.0 (/opt/rustwide/workdir/exercises/05_ticket_v2/07_unwrap) [INFO] [stderr] Compiling arrays v0.1.0 (/opt/rustwide/workdir/exercises/06_ticket_management/01_arrays) [INFO] [stderr] Compiling from v0.1.0 (/opt/rustwide/workdir/exercises/04_traits/09_from) [INFO] [stdout] warning: unused variable: `wrapping` [INFO] [stdout] --> exercises/04_traits/09_from/src/lib.rs:14:9 [INFO] [stdout] | [INFO] [stdout] 14 | let wrapping: WrappingU32 = 42.into(); [INFO] [stdout] | ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_wrapping` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `wrapping` [INFO] [stdout] --> exercises/04_traits/09_from/src/lib.rs:15:9 [INFO] [stdout] | [INFO] [stdout] 15 | let wrapping = WrappingU32::from(42); [INFO] [stdout] | ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_wrapping` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `value` is never read [INFO] [stdout] --> exercises/04_traits/09_from/src/lib.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 3 | pub struct WrappingU32 { [INFO] [stdout] | ----------- field in this struct [INFO] [stdout] 4 | value: u32, [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 `example` is never used [INFO] [stdout] --> exercises/04_traits/09_from/src/lib.rs:13:4 [INFO] [stdout] | [INFO] [stdout] 13 | fn example() { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling assoc_vs_generic v0.1.0 (/opt/rustwide/workdir/exercises/04_traits/10_assoc_vs_generic) [INFO] [stderr] Compiling sized v0.1.0 (/opt/rustwide/workdir/exercises/04_traits/08_sized) [INFO] [stderr] Compiling threads v0.1.0 (/opt/rustwide/workdir/exercises/07_threads/01_threads) [INFO] [stdout] warning: function `easy_ticket` is never used [INFO] [stdout] --> exercises/05_ticket_v2/07_unwrap/src/lib.rs:4:4 [INFO] [stdout] | [INFO] [stdout] 4 | fn easy_ticket(title: String, description: String, status: Status) -> Ticket { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling itertools v0.13.0 [INFO] [stdout] warning: struct `Ticket` is never constructed [INFO] [stdout] --> exercises/05_ticket_v2/07_unwrap/src/lib.rs:18:8 [INFO] [stdout] | [INFO] [stdout] 18 | struct Ticket { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `Status` is never used [INFO] [stdout] --> exercises/05_ticket_v2/07_unwrap/src/lib.rs:25:6 [INFO] [stdout] | [INFO] [stdout] 25 | enum Status { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `new` is never used [INFO] [stdout] --> exercises/05_ticket_v2/07_unwrap/src/lib.rs:32:12 [INFO] [stdout] | [INFO] [stdout] 31 | impl Ticket { [INFO] [stdout] | ----------- associated function in this implementation [INFO] [stdout] 32 | pub fn new(title: String, description: String, status: Status) -> Result { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling ownership v0.1.0 (/opt/rustwide/workdir/exercises/03_ticket_v1/06_ownership) [INFO] [stdout] warning: unused import: `std::process::Output` [INFO] [stdout] --> exercises/04_traits/10_assoc_vs_generic/src/lib.rs:16:5 [INFO] [stdout] | [INFO] [stdout] 16 | use std::process::Output; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling intro_03 v0.1.0 (/opt/rustwide/workdir/exercises/04_traits/00_intro) [INFO] [stderr] Compiling intro_08 v0.1.0 (/opt/rustwide/workdir/exercises/08_futures/00_intro) [INFO] [stderr] Compiling overflow v0.1.0 (/opt/rustwide/workdir/exercises/02_basic_calculator/08_overflow) [INFO] [stderr] Compiling panics v0.1.0 (/opt/rustwide/workdir/exercises/02_basic_calculator/04_panics) [INFO] [stdout] warning: function `intro` is never used [INFO] [stdout] --> exercises/08_futures/00_intro/src/lib.rs:1:4 [INFO] [stdout] | [INFO] [stdout] 1 | fn intro() -> &'static str { [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling trait_bounds v0.1.0 (/opt/rustwide/workdir/exercises/04_traits/05_trait_bounds) [INFO] [stdout] warning: function `intro` is never used [INFO] [stdout] --> exercises/04_traits/00_intro/src/lib.rs:1:4 [INFO] [stdout] | [INFO] [stdout] 1 | fn intro() -> &'static str { [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling while_ v0.1.0 (/opt/rustwide/workdir/exercises/02_basic_calculator/06_while) [INFO] [stderr] Compiling if_let v0.1.0 (/opt/rustwide/workdir/exercises/05_ticket_v2/04_if_let) [INFO] [stderr] Compiling interior_mutability v0.1.0 (/opt/rustwide/workdir/exercises/07_threads/06_interior_mutability) [INFO] [stdout] warning: unused import: `std::ops::Add` [INFO] [stdout] --> exercises/07_threads/06_interior_mutability/src/lib.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 5 | use std::ops::Add; [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `value` is never read [INFO] [stdout] --> exercises/07_threads/06_interior_mutability/src/lib.rs:9:5 [INFO] [stdout] | [INFO] [stdout] 8 | pub struct DropTracker { [INFO] [stdout] | ----------- field in this struct [INFO] [stdout] 9 | value: T, [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling if_else v0.1.0 (/opt/rustwide/workdir/exercises/02_basic_calculator/03_if_else) [INFO] [stdout] warning: enum `Shape` is never used [INFO] [stdout] --> exercises/05_ticket_v2/04_if_let/src/lib.rs:1:6 [INFO] [stdout] | [INFO] [stdout] 1 | enum Shape { [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 `radius` is never used [INFO] [stdout] --> exercises/05_ticket_v2/04_if_let/src/lib.rs:10:12 [INFO] [stdout] | [INFO] [stdout] 7 | impl Shape { [INFO] [stdout] | ---------- method in this implementation [INFO] [stdout] ... [INFO] [stdout] 10 | pub fn radius(&self) -> f64 { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling match_ v0.1.0 (/opt/rustwide/workdir/exercises/05_ticket_v2/02_match) [INFO] [stderr] Compiling outro_02 v0.1.0 (/opt/rustwide/workdir/exercises/03_ticket_v1/12_outro) [INFO] [stderr] Compiling saturating v0.1.0 (/opt/rustwide/workdir/exercises/02_basic_calculator/09_saturating) [INFO] [stdout] warning: enum `Shape` is never used [INFO] [stdout] --> exercises/05_ticket_v2/02_match/src/lib.rs:1:6 [INFO] [stdout] | [INFO] [stdout] 1 | enum Shape { [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 `n_sides` is never used [INFO] [stdout] --> exercises/05_ticket_v2/02_match/src/lib.rs:11:12 [INFO] [stdout] | [INFO] [stdout] 9 | impl Shape { [INFO] [stdout] | ---------- method in this implementation [INFO] [stdout] 10 | // TODO: Implement the `n_sides` method using a `match`. [INFO] [stdout] 11 | pub fn n_sides(&self) -> u8 { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling error_trait v0.1.0 (/opt/rustwide/workdir/exercises/05_ticket_v2/09_error_trait) [INFO] [stderr] Compiling enum_ v0.1.0 (/opt/rustwide/workdir/exercises/05_ticket_v2/01_enum) [INFO] [stderr] Compiling derives v0.1.0 (/opt/rustwide/workdir/exercises/04_traits/04_derive) [INFO] [stdout] warning: struct `Ticket` is never constructed [INFO] [stdout] --> exercises/04_traits/04_derive/src/lib.rs:13:8 [INFO] [stdout] | [INFO] [stdout] 13 | struct Ticket { [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 imports: `Formatter` and `clone` [INFO] [stdout] --> exercises/05_ticket_v2/09_error_trait/src/lib.rs:6:11 [INFO] [stdout] | [INFO] [stdout] 6 | use std::{clone, fmt::{Error, Formatter}}; [INFO] [stdout] | ^^^^^ ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling sync v0.1.0 (/opt/rustwide/workdir/exercises/07_threads/14_sync) [INFO] [stderr] Compiling slice v0.1.0 (/opt/rustwide/workdir/exercises/06_ticket_management/10_slices) [INFO] [stdout] warning: enum `TicketNewError` is never used [INFO] [stdout] --> exercises/05_ticket_v2/09_error_trait/src/lib.rs:9:6 [INFO] [stdout] | [INFO] [stdout] 9 | enum TicketNewError { [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 `easy_ticket` is never used [INFO] [stdout] --> exercises/05_ticket_v2/09_error_trait/src/lib.rs:29:4 [INFO] [stdout] | [INFO] [stdout] 29 | fn easy_ticket(title: String, description: String, status: Status) -> Ticket { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Ticket` is never constructed [INFO] [stdout] --> exercises/05_ticket_v2/09_error_trait/src/lib.rs:42:8 [INFO] [stdout] | [INFO] [stdout] 42 | struct Ticket { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `Status` is never used [INFO] [stdout] --> exercises/05_ticket_v2/09_error_trait/src/lib.rs:49:6 [INFO] [stdout] | [INFO] [stdout] 49 | enum Status { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `new` is never used [INFO] [stdout] --> exercises/05_ticket_v2/09_error_trait/src/lib.rs:56:12 [INFO] [stdout] | [INFO] [stdout] 55 | impl Ticket { [INFO] [stdout] | ----------- associated function in this implementation [INFO] [stdout] 56 | pub fn new( [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `sum` is never used [INFO] [stdout] --> exercises/06_ticket_management/10_slices/src/lib.rs:4:4 [INFO] [stdout] | [INFO] [stdout] 4 | fn sum(slice: &[u32]) -> u32 { [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling intro_02 v0.1.0 (/opt/rustwide/workdir/exercises/03_ticket_v1/00_intro) [INFO] [stderr] Compiling static v0.1.0 (/opt/rustwide/workdir/exercises/07_threads/02_static) [INFO] [stdout] warning: struct `Ticket` is never constructed [INFO] [stdout] --> exercises/05_ticket_v2/01_enum/src/lib.rs:7:8 [INFO] [stdout] | [INFO] [stdout] 7 | struct Ticket { [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 `Status` is never used [INFO] [stdout] --> exercises/05_ticket_v2/01_enum/src/lib.rs:14:6 [INFO] [stdout] | [INFO] [stdout] 14 | enum Status { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `new`, `title`, `description`, and `status` are never used [INFO] [stdout] --> exercises/05_ticket_v2/01_enum/src/lib.rs:22:12 [INFO] [stdout] | [INFO] [stdout] 21 | impl Ticket { [INFO] [stdout] | ----------- associated items in this implementation [INFO] [stdout] 22 | pub fn new(title: String, description: String, status: Status) -> Ticket { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 43 | pub fn title(&self) -> &String { [INFO] [stdout] | ^^^^^ [INFO] [stdout] ... [INFO] [stdout] 47 | pub fn description(&self) -> &String { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 51 | pub fn status(&self) -> &Status { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `outro` is never used [INFO] [stdout] --> exercises/07_threads/14_sync/src/lib.rs:2:4 [INFO] [stdout] | [INFO] [stdout] 2 | fn outro() -> &'static str { [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling trait_ v0.1.0 (/opt/rustwide/workdir/exercises/04_traits/01_trait) [INFO] [stderr] Compiling copy v0.1.0 (/opt/rustwide/workdir/exercises/04_traits/12_copy) [INFO] [stderr] Compiling overloading v0.1.0 (/opt/rustwide/workdir/exercises/04_traits/03_operator_overloading) [INFO] [stderr] Compiling references_in_memory v0.1.0 (/opt/rustwide/workdir/exercises/03_ticket_v1/10_references_in_memory) [INFO] [stderr] Compiling outro_03 v0.1.0 (/opt/rustwide/workdir/exercises/04_traits/14_outro) [INFO] [stdout] warning: struct `Ticket` is never constructed [INFO] [stdout] --> exercises/04_traits/03_operator_overloading/src/lib.rs:3:8 [INFO] [stdout] | [INFO] [stdout] 3 | struct Ticket { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `title`, `description`, and `status` are never read [INFO] [stdout] --> exercises/03_ticket_v1/10_references_in_memory/src/lib.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 1 | pub struct Ticket { [INFO] [stdout] | ------ fields in this struct [INFO] [stdout] 2 | title: String, [INFO] [stdout] | ^^^^^ [INFO] [stdout] 3 | description: String, [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] 4 | status: String, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling scoped_threads v0.1.0 (/opt/rustwide/workdir/exercises/07_threads/04_scoped_threads) [INFO] [stderr] Compiling heap v0.1.0 (/opt/rustwide/workdir/exercises/03_ticket_v1/09_heap) [INFO] [stdout] warning: fields `title`, `description`, and `status` are never read [INFO] [stdout] --> exercises/03_ticket_v1/09_heap/src/lib.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 1 | pub struct Ticket { [INFO] [stdout] | ------ fields in this struct [INFO] [stdout] 2 | title: String, [INFO] [stdout] | ^^^^^ [INFO] [stdout] 3 | description: String, [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] 4 | status: String, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling setters v0.1.0 (/opt/rustwide/workdir/exercises/03_ticket_v1/07_setters) [INFO] [stderr] Compiling as_cast v0.1.0 (/opt/rustwide/workdir/exercises/02_basic_calculator/10_as_casting) [INFO] [stderr] Compiling factorial v0.1.0 (/opt/rustwide/workdir/exercises/02_basic_calculator/05_factorial) [INFO] [stderr] Compiling deref v0.1.0 (/opt/rustwide/workdir/exercises/04_traits/07_deref) [INFO] [stdout] warning: field `status` is never read [INFO] [stdout] --> exercises/04_traits/07_deref/src/lib.rs:10:5 [INFO] [stdout] | [INFO] [stdout] 7 | pub struct Ticket { [INFO] [stdout] | ------ field in this struct [INFO] [stdout] ... [INFO] [stdout] 10 | status: String, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling validation v0.1.0 (/opt/rustwide/workdir/exercises/03_ticket_v1/02_validation) [INFO] [stderr] Compiling orphan v0.1.0 (/opt/rustwide/workdir/exercises/04_traits/02_orphan_rule) [INFO] [stderr] Compiling leaking v0.1.0 (/opt/rustwide/workdir/exercises/07_threads/03_leak) [INFO] [stderr] Compiling modules v0.1.0 (/opt/rustwide/workdir/exercises/03_ticket_v1/03_modules) [INFO] [stderr] Compiling stack v0.1.0 (/opt/rustwide/workdir/exercises/03_ticket_v1/08_stack) [INFO] [stderr] Compiling destructor v0.1.0 (/opt/rustwide/workdir/exercises/03_ticket_v1/11_destructor) [INFO] [stderr] Compiling str_slice v0.1.0 (/opt/rustwide/workdir/exercises/04_traits/06_str_slice) [INFO] [stderr] Compiling visibility v0.1.0 (/opt/rustwide/workdir/exercises/03_ticket_v1/04_visibility) [INFO] [stdout] warning: function `outro` is never used [INFO] [stdout] --> exercises/03_ticket_v1/11_destructor/src/lib.rs:4:4 [INFO] [stdout] | [INFO] [stdout] 4 | fn outro() -> &'static str { [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling error_enums v0.1.0 (/opt/rustwide/workdir/exercises/05_ticket_v2/08_error_enums) [INFO] [stdout] warning: struct `Ticket` is never constructed [INFO] [stdout] --> exercises/03_ticket_v1/04_visibility/src/lib.rs:2:16 [INFO] [stdout] | [INFO] [stdout] 2 | pub struct Ticket { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `new` is never used [INFO] [stdout] --> exercises/03_ticket_v1/04_visibility/src/lib.rs:9:16 [INFO] [stdout] | [INFO] [stdout] 8 | impl Ticket { [INFO] [stdout] | ----------- associated function in this implementation [INFO] [stdout] 9 | pub fn new(title: String, description: String, status: String) -> Ticket { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling intro_05 v0.1.0 (/opt/rustwide/workdir/exercises/06_ticket_management/00_intro) [INFO] [stderr] Compiling encapsulation v0.1.0 (/opt/rustwide/workdir/exercises/03_ticket_v1/05_encapsulation) [INFO] [stdout] warning: enum `TicketNewError` is never used [INFO] [stdout] --> exercises/05_ticket_v2/08_error_enums/src/lib.rs:5:6 [INFO] [stdout] | [INFO] [stdout] 5 | enum TicketNewError { [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 `easy_ticket` is never used [INFO] [stdout] --> exercises/05_ticket_v2/08_error_enums/src/lib.rs:14:4 [INFO] [stdout] | [INFO] [stdout] 14 | fn easy_ticket(title: String, description: String, status: Status) -> Ticket { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Ticket` is never constructed [INFO] [stdout] --> exercises/05_ticket_v2/08_error_enums/src/lib.rs:25:8 [INFO] [stdout] | [INFO] [stdout] 25 | struct Ticket { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `Status` is never used [INFO] [stdout] --> exercises/05_ticket_v2/08_error_enums/src/lib.rs:32:6 [INFO] [stdout] | [INFO] [stdout] 32 | enum Status { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `new` is never used [INFO] [stdout] --> exercises/05_ticket_v2/08_error_enums/src/lib.rs:39:12 [INFO] [stdout] | [INFO] [stdout] 38 | impl Ticket { [INFO] [stdout] | ----------- associated function in this implementation [INFO] [stdout] 39 | pub fn new( [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `intro` is never used [INFO] [stdout] --> exercises/06_ticket_management/00_intro/src/lib.rs:1:4 [INFO] [stdout] | [INFO] [stdout] 1 | fn intro() -> &'static str { [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling struct_ v0.1.0 (/opt/rustwide/workdir/exercises/03_ticket_v1/01_struct) [INFO] [stderr] Compiling vec v0.1.0 (/opt/rustwide/workdir/exercises/06_ticket_management/02_vec) [INFO] [stderr] Compiling welcome_00 v0.1.0 (/opt/rustwide/workdir/exercises/01_intro/00_welcome) [INFO] [stderr] Compiling drop v0.1.0 (/opt/rustwide/workdir/exercises/04_traits/13_drop) [INFO] [stderr] Compiling integers v0.1.0 (/opt/rustwide/workdir/exercises/02_basic_calculator/01_integers) [INFO] [stderr] Compiling intro_04 v0.1.0 (/opt/rustwide/workdir/exercises/05_ticket_v2/00_intro) [INFO] [stderr] Compiling intro_07 v0.1.0 (/opt/rustwide/workdir/exercises/07_threads/00_intro) [INFO] [stderr] Compiling for_ v0.1.0 (/opt/rustwide/workdir/exercises/02_basic_calculator/07_for) [INFO] [stderr] Compiling intro_01 v0.1.0 (/opt/rustwide/workdir/exercises/02_basic_calculator/00_intro) [INFO] [stderr] Compiling syntax v0.1.0 (/opt/rustwide/workdir/exercises/01_intro/01_syntax) [INFO] [stderr] Compiling clone v0.1.0 (/opt/rustwide/workdir/exercises/04_traits/11_clone) [INFO] [stdout] warning: function `intro` is never used [INFO] [stdout] --> exercises/07_threads/00_intro/src/lib.rs:1:4 [INFO] [stdout] | [INFO] [stdout] 1 | fn intro() -> &'static str { [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `intro` is never used [INFO] [stdout] --> exercises/05_ticket_v2/00_intro/src/lib.rs:1:4 [INFO] [stdout] | [INFO] [stdout] 1 | fn intro() -> &'static str { [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling mut_slice v0.1.0 (/opt/rustwide/workdir/exercises/06_ticket_management/11_mutable_slices) [INFO] [stderr] Compiling nullability v0.1.0 (/opt/rustwide/workdir/exercises/05_ticket_v2/05_nullability) [INFO] [stderr] Compiling variants_with_data v0.1.0 (/opt/rustwide/workdir/exercises/05_ticket_v2/03_variants_with_data) [INFO] [stdout] warning: struct `Ticket` is never constructed [INFO] [stdout] --> exercises/05_ticket_v2/03_variants_with_data/src/lib.rs:6:8 [INFO] [stdout] | [INFO] [stdout] 6 | struct Ticket { [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 `Status` is never used [INFO] [stdout] --> exercises/05_ticket_v2/03_variants_with_data/src/lib.rs:13:6 [INFO] [stdout] | [INFO] [stdout] 13 | enum Status { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `new` and `assigned_to` are never used [INFO] [stdout] --> exercises/05_ticket_v2/03_variants_with_data/src/lib.rs:20:12 [INFO] [stdout] | [INFO] [stdout] 19 | impl Ticket { [INFO] [stdout] | ----------- associated items in this implementation [INFO] [stdout] 20 | pub fn new(title: String, description: String, status: Status) -> Ticket { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 40 | pub fn assigned_to(&self) -> &str { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `squared` is never used [INFO] [stdout] --> exercises/06_ticket_management/11_mutable_slices/src/lib.rs:4:4 [INFO] [stdout] | [INFO] [stdout] 4 | fn squared(slice: &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 `Ticket` is never constructed [INFO] [stdout] --> exercises/05_ticket_v2/05_nullability/src/lib.rs:4:8 [INFO] [stdout] | [INFO] [stdout] 4 | struct Ticket { [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 `Status` is never used [INFO] [stdout] --> exercises/05_ticket_v2/05_nullability/src/lib.rs:11:6 [INFO] [stdout] | [INFO] [stdout] 11 | enum Status { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `new` and `assigned_to` are never used [INFO] [stdout] --> exercises/05_ticket_v2/05_nullability/src/lib.rs:18:12 [INFO] [stdout] | [INFO] [stdout] 17 | impl Ticket { [INFO] [stdout] | ----------- associated items in this implementation [INFO] [stdout] 18 | pub fn new(title: String, description: String, status: Status) -> Ticket { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 38 | pub fn assigned_to(&self) -> Option<&String> { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling bstr v1.12.1 [INFO] [stderr] Compiling regex v1.12.3 [INFO] [stderr] Compiling env_filter v0.1.4 [INFO] [stderr] Compiling ppv-lite86 v0.2.21 [INFO] [stderr] Compiling globset v0.4.18 [INFO] [stderr] Compiling opener v0.8.4 [INFO] [stderr] Compiling rand_chacha v0.9.0 [INFO] [stderr] Compiling synstructure v0.13.2 [INFO] [stderr] Compiling darling_core v0.20.11 [INFO] [stderr] Compiling pest_generator v2.8.5 [INFO] [stderr] Compiling pulldown-cmark-to-cmark v15.0.1 [INFO] [stderr] Compiling rand v0.9.2 [INFO] [stderr] Compiling ignore v0.4.25 [INFO] [stderr] Compiling tokio-macros v2.6.0 [INFO] [stderr] Compiling thiserror-impl v1.0.69 [INFO] [stderr] Compiling zerofrom-derive v0.1.6 [INFO] [stderr] Compiling serde_derive v1.0.228 [INFO] [stderr] Compiling yoke-derive v0.8.1 [INFO] [stderr] Compiling zerovec-derive v0.11.2 [INFO] [stderr] Compiling displaydoc v0.2.5 [INFO] [stderr] Compiling thiserror-impl v2.0.18 [INFO] [stderr] Compiling futures-macro v0.3.31 [INFO] [stderr] Compiling phf_macros v0.11.3 [INFO] [stderr] Compiling phf v0.11.3 [INFO] [stderr] Compiling match_token v0.35.0 [INFO] [stderr] Compiling clap_derive v4.5.55 [INFO] [stderr] Compiling cssparser-macros v0.6.1 [INFO] [stderr] Compiling tokio v1.49.0 [INFO] [stderr] Compiling cssparser v0.35.0 [INFO] [stderr] Compiling pest_derive v2.8.5 [INFO] [stderr] Compiling futures-util v0.3.31 [INFO] [stderr] Compiling tungstenite v0.28.0 [INFO] [stderr] Compiling tryfrom v0.1.0 (/opt/rustwide/workdir/exercises/05_ticket_v2/13_try_from) [INFO] [stderr] Compiling thiserror_ v0.1.0 (/opt/rustwide/workdir/exercises/05_ticket_v2/12_thiserror) [INFO] [stdout] warning: enum `Status` is never used [INFO] [stdout] --> exercises/05_ticket_v2/13_try_from/src/lib.rs:5:6 [INFO] [stdout] | [INFO] [stdout] 5 | enum Status { [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 `ParseStatusError` is never constructed [INFO] [stdout] --> exercises/05_ticket_v2/13_try_from/src/lib.rs:13:8 [INFO] [stdout] | [INFO] [stdout] 13 | struct ParseStatusError { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling env_logger v0.11.8 [INFO] [stdout] warning: enum `TicketNewError` is never used [INFO] [stdout] --> exercises/05_ticket_v2/12_thiserror/src/lib.rs:7:6 [INFO] [stdout] | [INFO] [stdout] 7 | enum TicketNewError { [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 `Ticket` is never constructed [INFO] [stdout] --> exercises/05_ticket_v2/12_thiserror/src/lib.rs:19:8 [INFO] [stdout] | [INFO] [stdout] 19 | struct Ticket { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `Status` is never used [INFO] [stdout] --> exercises/05_ticket_v2/12_thiserror/src/lib.rs:26:6 [INFO] [stdout] | [INFO] [stdout] 26 | enum Status { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `new` is never used [INFO] [stdout] --> exercises/05_ticket_v2/12_thiserror/src/lib.rs:33:12 [INFO] [stdout] | [INFO] [stdout] 32 | impl Ticket { [INFO] [stdout] | ----------- associated function in this implementation [INFO] [stdout] 33 | pub fn new( [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling outro_04 v0.1.0 (/opt/rustwide/workdir/exercises/05_ticket_v2/15_outro) [INFO] [stdout] warning: unused import: `crate::description` [INFO] [stdout] --> exercises/05_ticket_v2/15_outro/src/description.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 5 | use crate::description; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling zerofrom v0.1.6 [INFO] [stderr] Compiling yoke v0.8.1 [INFO] [stderr] Compiling zerovec v0.11.5 [INFO] [stderr] Compiling zerotrie v0.2.3 [INFO] [stderr] Compiling ticket_fields v0.1.0 (/opt/rustwide/workdir/helpers/ticket_fields) [INFO] [stderr] Compiling source v0.1.0 (/opt/rustwide/workdir/exercises/05_ticket_v2/14_source) [INFO] [stderr] Compiling patch v0.1.0 (/opt/rustwide/workdir/exercises/07_threads/10_patch) [INFO] [stderr] Compiling two_states v0.1.0 (/opt/rustwide/workdir/exercises/06_ticket_management/12_two_states) [INFO] [stdout] warning: type `Command` is more private than the item `server` [INFO] [stdout] --> exercises/07_threads/10_patch/src/lib.rs:72:1 [INFO] [stdout] | [INFO] [stdout] 72 | pub fn server(receiver: Receiver) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ function `server` is reachable at visibility `pub` [INFO] [stdout] | [INFO] [stdout] note: but type `Command` is only usable at visibility `pub(crate)` [INFO] [stdout] --> exercises/07_threads/10_patch/src/lib.rs:57:1 [INFO] [stdout] | [INFO] [stdout] 57 | enum Command { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] = note: `#[warn(private_interfaces)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling client v0.1.0 (/opt/rustwide/workdir/exercises/07_threads/08_client) [INFO] [stderr] Compiling rwlock v0.1.0 (/opt/rustwide/workdir/exercises/07_threads/12_rw_lock) [INFO] [stderr] Compiling tinystr v0.8.2 [INFO] [stderr] Compiling potential_utf v0.1.4 [INFO] [stderr] Compiling btreemap v0.1.0 (/opt/rustwide/workdir/exercises/06_ticket_management/16_btreemap) [INFO] [stdout] warning: unused import: `TrySendError` [INFO] [stdout] --> exercises/07_threads/12_rw_lock/src/lib.rs:3:59 [INFO] [stdout] | [INFO] [stdout] 3 | use std::sync::mpsc::{sync_channel, Receiver, SyncSender, TrySendError}; [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: `Mutex` [INFO] [stdout] --> exercises/07_threads/12_rw_lock/src/lib.rs:4:22 [INFO] [stdout] | [INFO] [stdout] 4 | use std::sync::{Arc, Mutex, RwLock}; [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `Mutex` [INFO] [stdout] --> exercises/07_threads/12_rw_lock/src/store.rs:3:22 [INFO] [stdout] | [INFO] [stdout] 3 | use std::sync::{Arc, Mutex, RwLock}; [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling bounded v0.1.0 (/opt/rustwide/workdir/exercises/07_threads/09_bounded) [INFO] [stdout] warning: unused import: `core::error` [INFO] [stdout] --> exercises/07_threads/09_bounded/src/lib.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | use core::error; [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `Sender` and `TrySendError` [INFO] [stdout] --> exercises/07_threads/09_bounded/src/lib.rs:5:33 [INFO] [stdout] | [INFO] [stdout] 5 | use std::sync::mpsc::{Receiver, Sender, SyncSender, TrySendError}; [INFO] [stdout] | ^^^^^^ ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: type `Command` is more private than the item `server` [INFO] [stdout] --> exercises/07_threads/09_bounded/src/lib.rs:57:1 [INFO] [stdout] | [INFO] [stdout] 57 | pub fn server(receiver: Receiver) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ function `server` is reachable at visibility `pub` [INFO] [stdout] | [INFO] [stdout] note: but type `Command` is only usable at visibility `pub(crate)` [INFO] [stdout] --> exercises/07_threads/09_bounded/src/lib.rs:46:1 [INFO] [stdout] | [INFO] [stdout] 46 | enum Command { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] = note: `#[warn(private_interfaces)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: type `Command` is more private than the item `server` [INFO] [stdout] --> exercises/07_threads/12_rw_lock/src/lib.rs:62:1 [INFO] [stdout] | [INFO] [stdout] 62 | pub fn server(receiver: Receiver) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ function `server` is reachable at visibility `pub` [INFO] [stdout] | [INFO] [stdout] note: but type `Command` is only usable at visibility `pub(crate)` [INFO] [stdout] --> exercises/07_threads/12_rw_lock/src/lib.rs:51:1 [INFO] [stdout] | [INFO] [stdout] 51 | enum Command { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] = note: `#[warn(private_interfaces)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling icu_collections v2.1.1 [INFO] [stderr] Compiling lifetime v0.1.0 (/opt/rustwide/workdir/exercises/06_ticket_management/06_lifetimes) [INFO] [stderr] Compiling locks v0.1.0 (/opt/rustwide/workdir/exercises/07_threads/11_locks) [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> exercises/06_ticket_management/06_lifetimes/src/lib.rs:43:17 [INFO] [stdout] | [INFO] [stdout] 43 | pub fn iter(&self) -> std::slice::Iter { [INFO] [stdout] | ^^^^^ ^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here [INFO] [stdout] | | [INFO] [stdout] | the lifetime is elided here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 43 | pub fn iter(&self) -> std::slice::Iter<'_, Ticket> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `TrySendError` [INFO] [stdout] --> exercises/07_threads/11_locks/src/lib.rs:4:59 [INFO] [stdout] | [INFO] [stdout] 4 | use std::sync::mpsc::{sync_channel, Receiver, SyncSender, TrySendError}; [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling impl_trait v0.1.0 (/opt/rustwide/workdir/exercises/06_ticket_management/08_impl_trait) [INFO] [stderr] Compiling iterators v0.1.0 (/opt/rustwide/workdir/exercises/06_ticket_management/04_iterators) [INFO] [stderr] Compiling without_channels v0.1.0 (/opt/rustwide/workdir/exercises/07_threads/13_without_channels) [INFO] [stdout] warning: type `Command` is more private than the item `server` [INFO] [stdout] --> exercises/07_threads/11_locks/src/lib.rs:63:1 [INFO] [stdout] | [INFO] [stdout] 63 | pub fn server(receiver: Receiver) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ function `server` is reachable at visibility `pub` [INFO] [stdout] | [INFO] [stdout] note: but type `Command` is only usable at visibility `pub(crate)` [INFO] [stdout] --> exercises/07_threads/11_locks/src/lib.rs:52:1 [INFO] [stdout] | [INFO] [stdout] 52 | enum Command { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] = note: `#[warn(private_interfaces)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::collections::binary_heap::Iter` [INFO] [stdout] --> exercises/06_ticket_management/08_impl_trait/src/lib.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::collections::binary_heap::Iter; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling icu_locale_core v2.1.1 [INFO] [stderr] Compiling channels v0.1.0 (/opt/rustwide/workdir/exercises/07_threads/05_channels) [INFO] [stderr] Compiling response v0.1.0 (/opt/rustwide/workdir/exercises/07_threads/07_ack) [INFO] [stderr] Compiling index v0.1.0 (/opt/rustwide/workdir/exercises/06_ticket_management/13_index) [INFO] [stdout] warning: unused imports: `cell::RefCell` and `rc::Rc` [INFO] [stdout] --> exercises/07_threads/07_ack/src/lib.rs:1:11 [INFO] [stdout] | [INFO] [stdout] 1 | use std::{cell::RefCell, rc::Rc, sync::mpsc::{Receiver, Sender}}; [INFO] [stdout] | ^^^^^^^^^^^^^ ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling index_mut v0.1.0 (/opt/rustwide/workdir/exercises/06_ticket_management/14_index_mut) [INFO] [stderr] Compiling combinators v0.1.0 (/opt/rustwide/workdir/exercises/06_ticket_management/07_combinators) [INFO] [stderr] Compiling hashmap v0.1.0 (/opt/rustwide/workdir/exercises/06_ticket_management/15_hashmap) [INFO] [stderr] Compiling impl_trait_2 v0.1.0 (/opt/rustwide/workdir/exercises/06_ticket_management/09_impl_trait_2) [INFO] [stderr] Compiling iter v0.1.0 (/opt/rustwide/workdir/exercises/06_ticket_management/05_iter) [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> exercises/06_ticket_management/05_iter/src/lib.rs:38:17 [INFO] [stdout] | [INFO] [stdout] 38 | pub fn iter(&self) -> std::slice::Iter { [INFO] [stdout] | ^^^^^ ^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here [INFO] [stdout] | | [INFO] [stdout] | the lifetime is elided here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 38 | pub fn iter(&self) -> std::slice::Iter<'_, Ticket> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling clap v4.5.57 [INFO] [stderr] Compiling clap_complete v4.5.65 [INFO] [stderr] Compiling darling_macro v0.20.11 [INFO] [stderr] Compiling icu_provider v2.1.1 [INFO] [stderr] Compiling darling v0.20.11 [INFO] [stderr] Compiling icu_properties v2.1.2 [INFO] [stderr] Compiling icu_normalizer v2.1.1 [INFO] [stderr] Compiling derive_builder_core v0.20.2 [INFO] [stderr] Compiling string_cache v0.8.9 [INFO] [stderr] Compiling serde_urlencoded v0.7.1 [INFO] [stderr] Compiling toml v0.5.11 [INFO] [stderr] Compiling elasticlunr-rs v3.0.2 [INFO] [stderr] Compiling bimap v0.6.3 [INFO] [stderr] Compiling idna_adapter v1.2.1 [INFO] [stderr] Compiling idna v1.1.0 [INFO] [stderr] Compiling derive_builder_macro v0.20.2 [INFO] [stderr] Compiling url v2.5.8 [INFO] [stderr] Compiling derive_builder v0.20.2 [INFO] [stderr] Compiling handlebars v6.4.0 [INFO] [stderr] Compiling markup5ever v0.35.0 [INFO] [stderr] Compiling html5ever v0.35.0 [INFO] [stderr] Compiling ammonia v4.1.2 [INFO] [stderr] Compiling hyper v1.8.1 [INFO] [stderr] Compiling tokio-tungstenite v0.28.0 [INFO] [stderr] Compiling tower v0.5.3 [INFO] [stderr] Compiling tokio-util v0.7.18 [INFO] [stderr] Compiling future v0.1.0 (/opt/rustwide/workdir/exercises/08_futures/04_future) [INFO] [stderr] Compiling blocking v0.1.0 (/opt/rustwide/workdir/exercises/08_futures/05_blocking) [INFO] [stderr] Compiling cancellation v0.1.0 (/opt/rustwide/workdir/exercises/08_futures/07_cancellation) [INFO] [stderr] Compiling async_locks v0.1.0 (/opt/rustwide/workdir/exercises/08_futures/06_async_aware_primitives) [INFO] [stderr] Compiling runtime v0.1.0 (/opt/rustwide/workdir/exercises/08_futures/03_runtime) [INFO] [stderr] Compiling async_fn v0.1.0 (/opt/rustwide/workdir/exercises/08_futures/01_async_fn) [INFO] [stderr] Compiling spawn v0.1.0 (/opt/rustwide/workdir/exercises/08_futures/02_spawn) [INFO] [stdout] warning: unused import: `anyhow::Ok` [INFO] [stdout] --> exercises/08_futures/01_async_fn/src/lib.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use anyhow::Ok; [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 `spawner` is never used [INFO] [stdout] --> exercises/08_futures/04_future/src/lib.rs:8:4 [INFO] [stdout] | [INFO] [stdout] 8 | fn spawner() { [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 `example` is never used [INFO] [stdout] --> exercises/08_futures/04_future/src/lib.rs:12:10 [INFO] [stdout] | [INFO] [stdout] 12 | async fn example() { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` in tuple element 0 that must be used [INFO] [stdout] --> exercises/08_futures/03_runtime/src/lib.rs:17:5 [INFO] [stdout] | [INFO] [stdout] 17 | tokio::join!(t1, t2); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` in tuple element 1 that must be used [INFO] [stdout] --> exercises/08_futures/03_runtime/src/lib.rs:17:5 [INFO] [stdout] | [INFO] [stdout] 17 | tokio::join!(t1, t2); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling tower-http v0.6.8 [INFO] [stderr] Compiling hyper-util v0.1.20 [INFO] [stderr] Compiling axum v0.8.8 [INFO] [stderr] Compiling mdbook v0.4.52 [INFO] [stderr] Compiling outro_08 v0.1.0 (/opt/rustwide/workdir/exercises/08_futures/08_outro) [INFO] [stderr] Compiling mdbook-link-shortener v0.1.0 (/opt/rustwide/workdir/helpers/mdbook-link-shortener) [INFO] [stderr] Compiling mdbook-exercise-linker v0.1.0 (/opt/rustwide/workdir/helpers/mdbook-exercise-linker) [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 31s [INFO] running `Command { std: "docker" "inspect" "547ee9c3c54d768d5217ffad832c5999ea497f2f3f3b7cf7bc0b15d3d046ffa9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "547ee9c3c54d768d5217ffad832c5999ea497f2f3f3b7cf7bc0b15d3d046ffa9", kill_on_drop: false }` [INFO] [stdout] 547ee9c3c54d768d5217ffad832c5999ea497f2f3f3b7cf7bc0b15d3d046ffa9 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+f9988fefd3add01f414f52b414308e7872622fee" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 149ca4e2cf0c4f685ded8e7324eba15ea8a2ec9685ba35e2d4fe813a0f5917a2 [INFO] running `Command { std: "docker" "start" "-a" "149ca4e2cf0c4f685ded8e7324eba15ea8a2ec9685ba35e2d4fe813a0f5917a2", kill_on_drop: false }` [INFO] [stdout] warning: unused import: `core::error` [INFO] [stdout] --> exercises/07_threads/09_bounded/src/lib.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | use core::error; [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `Sender` and `TrySendError` [INFO] [stdout] --> exercises/07_threads/09_bounded/src/lib.rs:5:33 [INFO] [stdout] | [INFO] [stdout] 5 | use std::sync::mpsc::{Receiver, Sender, SyncSender, TrySendError}; [INFO] [stdout] | ^^^^^^ ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: type `Command` is more private than the item `server` [INFO] [stdout] --> exercises/07_threads/09_bounded/src/lib.rs:57:1 [INFO] [stdout] | [INFO] [stdout] 57 | pub fn server(receiver: Receiver) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ function `server` is reachable at visibility `pub` [INFO] [stdout] | [INFO] [stdout] note: but type `Command` is only usable at visibility `pub(crate)` [INFO] [stdout] --> exercises/07_threads/09_bounded/src/lib.rs:46:1 [INFO] [stdout] | [INFO] [stdout] 46 | enum Command { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] = note: `#[warn(private_interfaces)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `TrySendError` [INFO] [stdout] --> exercises/07_threads/11_locks/src/lib.rs:4:59 [INFO] [stdout] | [INFO] [stdout] 4 | use std::sync::mpsc::{sync_channel, Receiver, SyncSender, TrySendError}; [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: type `Command` is more private than the item `server` [INFO] [stdout] --> exercises/07_threads/11_locks/src/lib.rs:63:1 [INFO] [stdout] | [INFO] [stdout] 63 | pub fn server(receiver: Receiver) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ function `server` is reachable at visibility `pub` [INFO] [stdout] | [INFO] [stdout] note: but type `Command` is only usable at visibility `pub(crate)` [INFO] [stdout] --> exercises/07_threads/11_locks/src/lib.rs:52:1 [INFO] [stdout] | [INFO] [stdout] 52 | enum Command { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] = note: `#[warn(private_interfaces)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `cell::RefCell` and `rc::Rc` [INFO] [stdout] --> exercises/07_threads/07_ack/src/lib.rs:1:11 [INFO] [stdout] | [INFO] [stdout] 1 | use std::{cell::RefCell, rc::Rc, sync::mpsc::{Receiver, Sender}}; [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: `TrySendError` [INFO] [stdout] --> exercises/07_threads/12_rw_lock/src/lib.rs:3:59 [INFO] [stdout] | [INFO] [stdout] 3 | use std::sync::mpsc::{sync_channel, Receiver, SyncSender, TrySendError}; [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: `Mutex` [INFO] [stdout] --> exercises/07_threads/12_rw_lock/src/lib.rs:4:22 [INFO] [stdout] | [INFO] [stdout] 4 | use std::sync::{Arc, Mutex, RwLock}; [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `Mutex` [INFO] [stdout] --> exercises/07_threads/12_rw_lock/src/store.rs:3:22 [INFO] [stdout] | [INFO] [stdout] 3 | use std::sync::{Arc, Mutex, RwLock}; [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: type `Command` is more private than the item `server` [INFO] [stdout] --> exercises/07_threads/12_rw_lock/src/lib.rs:62:1 [INFO] [stdout] | [INFO] [stdout] 62 | pub fn server(receiver: Receiver) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ function `server` is reachable at visibility `pub` [INFO] [stdout] | [INFO] [stdout] note: but type `Command` is only usable at visibility `pub(crate)` [INFO] [stdout] --> exercises/07_threads/12_rw_lock/src/lib.rs:51:1 [INFO] [stdout] | [INFO] [stdout] 51 | enum Command { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] = note: `#[warn(private_interfaces)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: type `Command` is more private than the item `server` [INFO] [stdout] --> exercises/07_threads/10_patch/src/lib.rs:72:1 [INFO] [stdout] | [INFO] [stdout] 72 | pub fn server(receiver: Receiver) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ function `server` is reachable at visibility `pub` [INFO] [stdout] | [INFO] [stdout] note: but type `Command` is only usable at visibility `pub(crate)` [INFO] [stdout] --> exercises/07_threads/10_patch/src/lib.rs:57:1 [INFO] [stdout] | [INFO] [stdout] 57 | enum Command { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] = note: `#[warn(private_interfaces)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling static_assertions v1.1.0 [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> exercises/06_ticket_management/05_iter/src/lib.rs:38:17 [INFO] [stdout] | [INFO] [stdout] 38 | pub fn iter(&self) -> std::slice::Iter { [INFO] [stdout] | ^^^^^ ^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here [INFO] [stdout] | | [INFO] [stdout] | the lifetime is elided here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 38 | pub fn iter(&self) -> std::slice::Iter<'_, Ticket> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> exercises/06_ticket_management/06_lifetimes/src/lib.rs:43:17 [INFO] [stdout] | [INFO] [stdout] 43 | pub fn iter(&self) -> std::slice::Iter { [INFO] [stdout] | ^^^^^ ^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here [INFO] [stdout] | | [INFO] [stdout] | the lifetime is elided here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 43 | pub fn iter(&self) -> std::slice::Iter<'_, Ticket> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::collections::binary_heap::Iter` [INFO] [stdout] --> exercises/06_ticket_management/08_impl_trait/src/lib.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::collections::binary_heap::Iter; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `crate::description` [INFO] [stdout] --> exercises/05_ticket_v2/15_outro/src/description.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 5 | use crate::description; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `TicketNewError` is never used [INFO] [stdout] --> exercises/05_ticket_v2/12_thiserror/src/lib.rs:7:6 [INFO] [stdout] | [INFO] [stdout] 7 | enum TicketNewError { [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 `Ticket` is never constructed [INFO] [stdout] --> exercises/05_ticket_v2/12_thiserror/src/lib.rs:19:8 [INFO] [stdout] | [INFO] [stdout] 19 | struct Ticket { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `Status` is never used [INFO] [stdout] --> exercises/05_ticket_v2/12_thiserror/src/lib.rs:26:6 [INFO] [stdout] | [INFO] [stdout] 26 | enum Status { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `new` is never used [INFO] [stdout] --> exercises/05_ticket_v2/12_thiserror/src/lib.rs:33:12 [INFO] [stdout] | [INFO] [stdout] 32 | impl Ticket { [INFO] [stdout] | ----------- associated function in this implementation [INFO] [stdout] 33 | pub fn new( [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` in tuple element 0 that must be used [INFO] [stdout] --> exercises/08_futures/03_runtime/src/lib.rs:17:5 [INFO] [stdout] | [INFO] [stdout] 17 | tokio::join!(t1, t2); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` in tuple element 1 that must be used [INFO] [stdout] --> exercises/08_futures/03_runtime/src/lib.rs:17:5 [INFO] [stdout] | [INFO] [stdout] 17 | tokio::join!(t1, t2); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `Status` is never used [INFO] [stdout] --> exercises/05_ticket_v2/13_try_from/src/lib.rs:5:6 [INFO] [stdout] | [INFO] [stdout] 5 | enum Status { [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 `ParseStatusError` is never constructed [INFO] [stdout] --> exercises/05_ticket_v2/13_try_from/src/lib.rs:13:8 [INFO] [stdout] | [INFO] [stdout] 13 | struct ParseStatusError { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `spawner` is never used [INFO] [stdout] --> exercises/08_futures/04_future/src/lib.rs:8:4 [INFO] [stdout] | [INFO] [stdout] 8 | fn spawner() { [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 `example` is never used [INFO] [stdout] --> exercises/08_futures/04_future/src/lib.rs:12:10 [INFO] [stdout] | [INFO] [stdout] 12 | async fn example() { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `anyhow::Ok` [INFO] [stdout] --> exercises/08_futures/01_async_fn/src/lib.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use anyhow::Ok; [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: `anyhow::Error` [INFO] [stdout] --> exercises/05_ticket_v2/11_dependencies/src/lib.rs:6:5 [INFO] [stdout] | [INFO] [stdout] 6 | use anyhow::Error; [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `wrapping` [INFO] [stdout] --> exercises/04_traits/09_from/src/lib.rs:14:9 [INFO] [stdout] | [INFO] [stdout] 14 | let wrapping: WrappingU32 = 42.into(); [INFO] [stdout] | ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_wrapping` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `wrapping` [INFO] [stdout] --> exercises/04_traits/09_from/src/lib.rs:15:9 [INFO] [stdout] | [INFO] [stdout] 15 | let wrapping = WrappingU32::from(42); [INFO] [stdout] | ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_wrapping` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `value` is never read [INFO] [stdout] --> exercises/04_traits/09_from/src/lib.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 3 | pub struct WrappingU32 { [INFO] [stdout] | ----------- field in this struct [INFO] [stdout] 4 | value: u32, [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 `example` is never used [INFO] [stdout] --> exercises/04_traits/09_from/src/lib.rs:13:4 [INFO] [stdout] | [INFO] [stdout] 13 | fn example() { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `intro` is never used [INFO] [stdout] --> exercises/05_ticket_v2/00_intro/src/lib.rs:1:4 [INFO] [stdout] | [INFO] [stdout] 1 | fn intro() -> &'static str { [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `intro` is never used [INFO] [stdout] --> exercises/07_threads/00_intro/src/lib.rs:1:4 [INFO] [stdout] | [INFO] [stdout] 1 | fn intro() -> &'static str { [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Ticket` is never constructed [INFO] [stdout] --> exercises/05_ticket_v2/03_variants_with_data/src/lib.rs:6:8 [INFO] [stdout] | [INFO] [stdout] 6 | struct Ticket { [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 `Status` is never used [INFO] [stdout] --> exercises/05_ticket_v2/03_variants_with_data/src/lib.rs:13:6 [INFO] [stdout] | [INFO] [stdout] 13 | enum Status { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `new` and `assigned_to` are never used [INFO] [stdout] --> exercises/05_ticket_v2/03_variants_with_data/src/lib.rs:20:12 [INFO] [stdout] | [INFO] [stdout] 19 | impl Ticket { [INFO] [stdout] | ----------- associated items in this implementation [INFO] [stdout] 20 | pub fn new(title: String, description: String, status: Status) -> Ticket { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 40 | pub fn assigned_to(&self) -> &str { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Ticket` is never constructed [INFO] [stdout] --> exercises/04_traits/04_derive/src/lib.rs:13:8 [INFO] [stdout] | [INFO] [stdout] 13 | struct Ticket { [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::ops::Add` [INFO] [stdout] --> exercises/07_threads/06_interior_mutability/src/lib.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 5 | use std::ops::Add; [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `value` is never read [INFO] [stdout] --> exercises/07_threads/06_interior_mutability/src/lib.rs:9:5 [INFO] [stdout] | [INFO] [stdout] 8 | pub struct DropTracker { [INFO] [stdout] | ----------- field in this struct [INFO] [stdout] 9 | value: 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: function `squared` is never used [INFO] [stdout] --> exercises/06_ticket_management/11_mutable_slices/src/lib.rs:4:4 [INFO] [stdout] | [INFO] [stdout] 4 | fn squared(slice: &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: unused imports: `Formatter` and `clone` [INFO] [stdout] --> exercises/05_ticket_v2/09_error_trait/src/lib.rs:6:11 [INFO] [stdout] | [INFO] [stdout] 6 | use std::{clone, fmt::{Error, Formatter}}; [INFO] [stdout] | ^^^^^ ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `TicketNewError` is never used [INFO] [stdout] --> exercises/05_ticket_v2/09_error_trait/src/lib.rs:9:6 [INFO] [stdout] | [INFO] [stdout] 9 | enum TicketNewError { [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 `easy_ticket` is never used [INFO] [stdout] --> exercises/05_ticket_v2/09_error_trait/src/lib.rs:29:4 [INFO] [stdout] | [INFO] [stdout] 29 | fn easy_ticket(title: String, description: String, status: Status) -> Ticket { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Ticket` is never constructed [INFO] [stdout] --> exercises/05_ticket_v2/09_error_trait/src/lib.rs:42:8 [INFO] [stdout] | [INFO] [stdout] 42 | struct Ticket { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `Status` is never used [INFO] [stdout] --> exercises/05_ticket_v2/09_error_trait/src/lib.rs:49:6 [INFO] [stdout] | [INFO] [stdout] 49 | enum Status { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `new` is never used [INFO] [stdout] --> exercises/05_ticket_v2/09_error_trait/src/lib.rs:56:12 [INFO] [stdout] | [INFO] [stdout] 55 | impl Ticket { [INFO] [stdout] | ----------- associated function in this implementation [INFO] [stdout] 56 | pub fn new( [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `easy_ticket` is never used [INFO] [stdout] --> exercises/05_ticket_v2/07_unwrap/src/lib.rs:4:4 [INFO] [stdout] | [INFO] [stdout] 4 | fn easy_ticket(title: String, description: String, status: Status) -> Ticket { [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 `Ticket` is never constructed [INFO] [stdout] --> exercises/05_ticket_v2/07_unwrap/src/lib.rs:18:8 [INFO] [stdout] | [INFO] [stdout] 18 | struct Ticket { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `Status` is never used [INFO] [stdout] --> exercises/05_ticket_v2/07_unwrap/src/lib.rs:25:6 [INFO] [stdout] | [INFO] [stdout] 25 | enum Status { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `new` is never used [INFO] [stdout] --> exercises/05_ticket_v2/07_unwrap/src/lib.rs:32:12 [INFO] [stdout] | [INFO] [stdout] 31 | impl Ticket { [INFO] [stdout] | ----------- associated function in this implementation [INFO] [stdout] 32 | pub fn new(title: String, description: String, status: Status) -> Result { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `Shape` is never used [INFO] [stdout] --> exercises/05_ticket_v2/04_if_let/src/lib.rs:1:6 [INFO] [stdout] | [INFO] [stdout] 1 | enum Shape { [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 `radius` is never used [INFO] [stdout] --> exercises/05_ticket_v2/04_if_let/src/lib.rs:10:12 [INFO] [stdout] | [INFO] [stdout] 7 | impl Shape { [INFO] [stdout] | ---------- method in this implementation [INFO] [stdout] ... [INFO] [stdout] 10 | pub fn radius(&self) -> f64 { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Ticket` is never constructed [INFO] [stdout] --> exercises/05_ticket_v2/01_enum/src/lib.rs:7:8 [INFO] [stdout] | [INFO] [stdout] 7 | struct Ticket { [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 `Status` is never used [INFO] [stdout] --> exercises/05_ticket_v2/01_enum/src/lib.rs:14:6 [INFO] [stdout] | [INFO] [stdout] 14 | enum Status { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `new`, `title`, `description`, and `status` are never used [INFO] [stdout] --> exercises/05_ticket_v2/01_enum/src/lib.rs:22:12 [INFO] [stdout] | [INFO] [stdout] 21 | impl Ticket { [INFO] [stdout] | ----------- associated items in this implementation [INFO] [stdout] 22 | pub fn new(title: String, description: String, status: Status) -> Ticket { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 43 | pub fn title(&self) -> &String { [INFO] [stdout] | ^^^^^ [INFO] [stdout] ... [INFO] [stdout] 47 | pub fn description(&self) -> &String { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 51 | pub fn status(&self) -> &Status { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `intro` is never used [INFO] [stdout] --> exercises/06_ticket_management/00_intro/src/lib.rs:1:4 [INFO] [stdout] | [INFO] [stdout] 1 | fn intro() -> &'static str { [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Ticket` is never constructed [INFO] [stdout] --> exercises/05_ticket_v2/06_fallibility/src/lib.rs:5:8 [INFO] [stdout] | [INFO] [stdout] 5 | struct Ticket { [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 `Status` is never used [INFO] [stdout] --> exercises/05_ticket_v2/06_fallibility/src/lib.rs:12:6 [INFO] [stdout] | [INFO] [stdout] 12 | enum Status { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `new` is never used [INFO] [stdout] --> exercises/05_ticket_v2/06_fallibility/src/lib.rs:19:12 [INFO] [stdout] | [INFO] [stdout] 18 | impl Ticket { [INFO] [stdout] | ----------- associated function in this implementation [INFO] [stdout] 19 | pub fn new(title: String, description: String, status: Status) -> Result { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `title`, `description`, and `status` are never read [INFO] [stdout] --> exercises/03_ticket_v1/10_references_in_memory/src/lib.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 1 | pub struct Ticket { [INFO] [stdout] | ------ fields in this struct [INFO] [stdout] 2 | title: String, [INFO] [stdout] | ^^^^^ [INFO] [stdout] 3 | description: String, [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] 4 | status: 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: struct `Ticket` is never constructed [INFO] [stdout] --> exercises/05_ticket_v2/05_nullability/src/lib.rs:4:8 [INFO] [stdout] | [INFO] [stdout] 4 | struct Ticket { [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 `Status` is never used [INFO] [stdout] --> exercises/05_ticket_v2/05_nullability/src/lib.rs:11:6 [INFO] [stdout] | [INFO] [stdout] 11 | enum Status { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `new` and `assigned_to` are never used [INFO] [stdout] --> exercises/05_ticket_v2/05_nullability/src/lib.rs:18:12 [INFO] [stdout] | [INFO] [stdout] 17 | impl Ticket { [INFO] [stdout] | ----------- associated items in this implementation [INFO] [stdout] 18 | pub fn new(title: String, description: String, status: Status) -> Ticket { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 38 | pub fn assigned_to(&self) -> Option<&String> { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `outro` is never used [INFO] [stdout] --> exercises/07_threads/14_sync/src/lib.rs:2:4 [INFO] [stdout] | [INFO] [stdout] 2 | fn outro() -> &'static str { [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Ticket` is never constructed [INFO] [stdout] --> exercises/04_traits/03_operator_overloading/src/lib.rs:3:8 [INFO] [stdout] | [INFO] [stdout] 3 | struct Ticket { [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 `intro` is never used [INFO] [stdout] --> exercises/04_traits/00_intro/src/lib.rs:1:4 [INFO] [stdout] | [INFO] [stdout] 1 | fn intro() -> &'static str { [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Ticket` is never constructed [INFO] [stdout] --> exercises/03_ticket_v1/04_visibility/src/lib.rs:2:16 [INFO] [stdout] | [INFO] [stdout] 2 | pub struct Ticket { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `new` is never used [INFO] [stdout] --> exercises/03_ticket_v1/04_visibility/src/lib.rs:9:16 [INFO] [stdout] | [INFO] [stdout] 8 | impl Ticket { [INFO] [stdout] | ----------- associated function in this implementation [INFO] [stdout] 9 | pub fn new(title: String, description: String, status: String) -> Ticket { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `status` is never read [INFO] [stdout] --> exercises/04_traits/07_deref/src/lib.rs:10:5 [INFO] [stdout] | [INFO] [stdout] 7 | pub struct Ticket { [INFO] [stdout] | ------ field in this struct [INFO] [stdout] ... [INFO] [stdout] 10 | status: 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: enum `TicketNewError` is never used [INFO] [stdout] --> exercises/05_ticket_v2/08_error_enums/src/lib.rs:5:6 [INFO] [stdout] | [INFO] [stdout] 5 | enum TicketNewError { [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 `easy_ticket` is never used [INFO] [stdout] --> exercises/05_ticket_v2/08_error_enums/src/lib.rs:14:4 [INFO] [stdout] | [INFO] [stdout] 14 | fn easy_ticket(title: String, description: String, status: Status) -> Ticket { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Ticket` is never constructed [INFO] [stdout] --> exercises/05_ticket_v2/08_error_enums/src/lib.rs:25:8 [INFO] [stdout] | [INFO] [stdout] 25 | struct Ticket { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `Status` is never used [INFO] [stdout] --> exercises/05_ticket_v2/08_error_enums/src/lib.rs:32:6 [INFO] [stdout] | [INFO] [stdout] 32 | enum Status { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `new` is never used [INFO] [stdout] --> exercises/05_ticket_v2/08_error_enums/src/lib.rs:39:12 [INFO] [stdout] | [INFO] [stdout] 38 | impl Ticket { [INFO] [stdout] | ----------- associated function in this implementation [INFO] [stdout] 39 | pub fn new( [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `outro` is never used [INFO] [stdout] --> exercises/03_ticket_v1/11_destructor/src/lib.rs:4:4 [INFO] [stdout] | [INFO] [stdout] 4 | fn outro() -> &'static str { [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `sum` is never used [INFO] [stdout] --> exercises/06_ticket_management/10_slices/src/lib.rs:4:4 [INFO] [stdout] | [INFO] [stdout] 4 | fn sum(slice: &[u32]) -> u32 { [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 `intro` is never used [INFO] [stdout] --> exercises/08_futures/00_intro/src/lib.rs:1:4 [INFO] [stdout] | [INFO] [stdout] 1 | fn intro() -> &'static str { [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `title`, `description`, and `status` are never read [INFO] [stdout] --> exercises/03_ticket_v1/09_heap/src/lib.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 1 | pub struct Ticket { [INFO] [stdout] | ------ fields in this struct [INFO] [stdout] 2 | title: String, [INFO] [stdout] | ^^^^^ [INFO] [stdout] 3 | description: String, [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] 4 | status: 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: enum `Shape` is never used [INFO] [stdout] --> exercises/05_ticket_v2/02_match/src/lib.rs:1:6 [INFO] [stdout] | [INFO] [stdout] 1 | enum Shape { [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 `n_sides` is never used [INFO] [stdout] --> exercises/05_ticket_v2/02_match/src/lib.rs:11:12 [INFO] [stdout] | [INFO] [stdout] 9 | impl Shape { [INFO] [stdout] | ---------- method in this implementation [INFO] [stdout] 10 | // TODO: Implement the `n_sides` method using a `match`. [INFO] [stdout] 11 | pub fn n_sides(&self) -> u8 { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::process::Output` [INFO] [stdout] --> exercises/04_traits/10_assoc_vs_generic/src/lib.rs:16:5 [INFO] [stdout] | [INFO] [stdout] 16 | use std::process::Output; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling mdbook-link-shortener v0.1.0 (/opt/rustwide/workdir/helpers/mdbook-link-shortener) [INFO] [stderr] Compiling mdbook-exercise-linker v0.1.0 (/opt/rustwide/workdir/helpers/mdbook-exercise-linker) [INFO] [stderr] Compiling outro_03 v0.1.0 (/opt/rustwide/workdir/exercises/04_traits/14_outro) [INFO] [stderr] Compiling outro_02 v0.1.0 (/opt/rustwide/workdir/exercises/03_ticket_v1/12_outro) [INFO] [stderr] Compiling packages v0.1.0 (/opt/rustwide/workdir/exercises/05_ticket_v2/10_packages) [INFO] [stderr] Compiling without_channels v0.1.0 (/opt/rustwide/workdir/exercises/07_threads/13_without_channels) [INFO] [stderr] Compiling bounded v0.1.0 (/opt/rustwide/workdir/exercises/07_threads/09_bounded) [INFO] [stderr] Compiling channels v0.1.0 (/opt/rustwide/workdir/exercises/07_threads/05_channels) [INFO] [stderr] Compiling outro_08 v0.1.0 (/opt/rustwide/workdir/exercises/08_futures/08_outro) [INFO] [stderr] Compiling patch v0.1.0 (/opt/rustwide/workdir/exercises/07_threads/10_patch) [INFO] [stderr] Compiling rwlock v0.1.0 (/opt/rustwide/workdir/exercises/07_threads/12_rw_lock) [INFO] [stderr] Compiling client v0.1.0 (/opt/rustwide/workdir/exercises/07_threads/08_client) [INFO] [stderr] Compiling response v0.1.0 (/opt/rustwide/workdir/exercises/07_threads/07_ack) [INFO] [stderr] Compiling error_trait v0.1.0 (/opt/rustwide/workdir/exercises/05_ticket_v2/09_error_trait) [INFO] [stdout] warning: unused imports: `Formatter` and `clone` [INFO] [stdout] --> exercises/05_ticket_v2/09_error_trait/src/lib.rs:6:11 [INFO] [stdout] | [INFO] [stdout] 6 | use std::{clone, fmt::{Error, Formatter}}; [INFO] [stdout] | ^^^^^ ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling locks v0.1.0 (/opt/rustwide/workdir/exercises/07_threads/11_locks) [INFO] [stdout] warning: variants `InProgress` and `Done` are never constructed [INFO] [stdout] --> exercises/05_ticket_v2/09_error_trait/src/lib.rs:51:5 [INFO] [stdout] | [INFO] [stdout] 49 | enum Status { [INFO] [stdout] | ------ variants in this enum [INFO] [stdout] 50 | ToDo, [INFO] [stdout] 51 | InProgress { assigned_to: String }, [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] 52 | Done, [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Status` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling iter v0.1.0 (/opt/rustwide/workdir/exercises/06_ticket_management/05_iter) [INFO] [stderr] Compiling index_mut v0.1.0 (/opt/rustwide/workdir/exercises/06_ticket_management/14_index_mut) [INFO] [stderr] Compiling impl_trait v0.1.0 (/opt/rustwide/workdir/exercises/06_ticket_management/08_impl_trait) [INFO] [stderr] Compiling iterators v0.1.0 (/opt/rustwide/workdir/exercises/06_ticket_management/04_iterators) [INFO] [stderr] Compiling lifetime v0.1.0 (/opt/rustwide/workdir/exercises/06_ticket_management/06_lifetimes) [INFO] [stdout] warning: unused import: `TrySendError` [INFO] [stdout] --> exercises/07_threads/12_rw_lock/src/lib.rs:3:59 [INFO] [stdout] | [INFO] [stdout] 3 | use std::sync::mpsc::{sync_channel, Receiver, SyncSender, TrySendError}; [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: `Mutex` [INFO] [stdout] --> exercises/07_threads/12_rw_lock/src/lib.rs:4:22 [INFO] [stdout] | [INFO] [stdout] 4 | use std::sync::{Arc, Mutex, RwLock}; [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `Mutex` [INFO] [stdout] --> exercises/07_threads/12_rw_lock/src/store.rs:3:22 [INFO] [stdout] | [INFO] [stdout] 3 | use std::sync::{Arc, Mutex, RwLock}; [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling hashmap v0.1.0 (/opt/rustwide/workdir/exercises/06_ticket_management/15_hashmap) [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> exercises/06_ticket_management/05_iter/src/lib.rs:38:17 [INFO] [stdout] | [INFO] [stdout] 38 | pub fn iter(&self) -> std::slice::Iter { [INFO] [stdout] | ^^^^^ ^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here [INFO] [stdout] | | [INFO] [stdout] | the lifetime is elided here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 38 | pub fn iter(&self) -> std::slice::Iter<'_, Ticket> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::collections::binary_heap::Iter` [INFO] [stdout] --> exercises/06_ticket_management/08_impl_trait/src/lib.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::collections::binary_heap::Iter; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling index v0.1.0 (/opt/rustwide/workdir/exercises/06_ticket_management/13_index) [INFO] [stdout] warning: type `Command` is more private than the item `server` [INFO] [stdout] --> exercises/07_threads/12_rw_lock/src/lib.rs:62:1 [INFO] [stdout] | [INFO] [stdout] 62 | pub fn server(receiver: Receiver) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ function `server` is reachable at visibility `pub` [INFO] [stdout] | [INFO] [stdout] note: but type `Command` is only usable at visibility `pub(crate)` [INFO] [stdout] --> exercises/07_threads/12_rw_lock/src/lib.rs:51:1 [INFO] [stdout] | [INFO] [stdout] 51 | enum Command { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] = note: `#[warn(private_interfaces)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> exercises/06_ticket_management/06_lifetimes/src/lib.rs:43:17 [INFO] [stdout] | [INFO] [stdout] 43 | pub fn iter(&self) -> std::slice::Iter { [INFO] [stdout] | ^^^^^ ^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here [INFO] [stdout] | | [INFO] [stdout] | the lifetime is elided here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 43 | pub fn iter(&self) -> std::slice::Iter<'_, Ticket> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling combinators v0.1.0 (/opt/rustwide/workdir/exercises/06_ticket_management/07_combinators) [INFO] [stderr] Compiling btreemap v0.1.0 (/opt/rustwide/workdir/exercises/06_ticket_management/16_btreemap) [INFO] [stderr] Compiling two_states v0.1.0 (/opt/rustwide/workdir/exercises/06_ticket_management/12_two_states) [INFO] [stdout] warning: unused imports: `cell::RefCell` and `rc::Rc` [INFO] [stdout] --> exercises/07_threads/07_ack/src/lib.rs:1:11 [INFO] [stdout] | [INFO] [stdout] 1 | use std::{cell::RefCell, rc::Rc, sync::mpsc::{Receiver, Sender}}; [INFO] [stdout] | ^^^^^^^^^^^^^ ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling impl_trait_2 v0.1.0 (/opt/rustwide/workdir/exercises/06_ticket_management/09_impl_trait_2) [INFO] [stdout] warning: unused variable: `ticket2` [INFO] [stdout] --> exercises/06_ticket_management/12_two_states/src/lib.rs:93:13 [INFO] [stdout] | [INFO] [stdout] 93 | let ticket2 = store.get(id2).unwrap(); [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_ticket2` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `i` [INFO] [stdout] --> exercises/06_ticket_management/16_btreemap/src/lib.rs:118:13 [INFO] [stdout] | [INFO] [stdout] 118 | for i in 0..n_tickets { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `ticket2` [INFO] [stdout] --> exercises/06_ticket_management/13_index/src/lib.rs:102:13 [INFO] [stdout] | [INFO] [stdout] 102 | let ticket2 = &store[&id2]; [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_ticket2` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `core::error` [INFO] [stdout] --> exercises/07_threads/09_bounded/src/lib.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | use core::error; [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `Sender` and `TrySendError` [INFO] [stdout] --> exercises/07_threads/09_bounded/src/lib.rs:5:33 [INFO] [stdout] | [INFO] [stdout] 5 | use std::sync::mpsc::{Receiver, Sender, SyncSender, TrySendError}; [INFO] [stdout] | ^^^^^^ ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling async_fn v0.1.0 (/opt/rustwide/workdir/exercises/08_futures/01_async_fn) [INFO] [stdout] warning: type `Command` is more private than the item `server` [INFO] [stdout] --> exercises/07_threads/09_bounded/src/lib.rs:57:1 [INFO] [stdout] | [INFO] [stdout] 57 | pub fn server(receiver: Receiver) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ function `server` is reachable at visibility `pub` [INFO] [stdout] | [INFO] [stdout] note: but type `Command` is only usable at visibility `pub(crate)` [INFO] [stdout] --> exercises/07_threads/09_bounded/src/lib.rs:46:1 [INFO] [stdout] | [INFO] [stdout] 46 | enum Command { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] = note: `#[warn(private_interfaces)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling future v0.1.0 (/opt/rustwide/workdir/exercises/08_futures/04_future) [INFO] [stderr] Compiling spawn v0.1.0 (/opt/rustwide/workdir/exercises/08_futures/02_spawn) [INFO] [stdout] warning: unused import: `TrySendError` [INFO] [stdout] --> exercises/07_threads/11_locks/src/lib.rs:4:59 [INFO] [stdout] | [INFO] [stdout] 4 | use std::sync::mpsc::{sync_channel, Receiver, SyncSender, TrySendError}; [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: `anyhow::Ok` [INFO] [stdout] --> exercises/08_futures/01_async_fn/src/lib.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use anyhow::Ok; [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 `spawner` is never used [INFO] [stdout] --> exercises/08_futures/04_future/src/lib.rs:8:4 [INFO] [stdout] | [INFO] [stdout] 8 | fn spawner() { [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 `example` is never used [INFO] [stdout] --> exercises/08_futures/04_future/src/lib.rs:12:10 [INFO] [stdout] | [INFO] [stdout] 12 | async fn example() { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: type `Command` is more private than the item `server` [INFO] [stdout] --> exercises/07_threads/10_patch/src/lib.rs:72:1 [INFO] [stdout] | [INFO] [stdout] 72 | pub fn server(receiver: Receiver) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ function `server` is reachable at visibility `pub` [INFO] [stdout] | [INFO] [stdout] note: but type `Command` is only usable at visibility `pub(crate)` [INFO] [stdout] --> exercises/07_threads/10_patch/src/lib.rs:57:1 [INFO] [stdout] | [INFO] [stdout] 57 | enum Command { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] = note: `#[warn(private_interfaces)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling cancellation v0.1.0 (/opt/rustwide/workdir/exercises/08_futures/07_cancellation) [INFO] [stderr] Compiling async_locks v0.1.0 (/opt/rustwide/workdir/exercises/08_futures/06_async_aware_primitives) [INFO] [stdout] warning: type `Command` is more private than the item `server` [INFO] [stdout] --> exercises/07_threads/11_locks/src/lib.rs:63:1 [INFO] [stdout] | [INFO] [stdout] 63 | pub fn server(receiver: Receiver) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ function `server` is reachable at visibility `pub` [INFO] [stdout] | [INFO] [stdout] note: but type `Command` is only usable at visibility `pub(crate)` [INFO] [stdout] --> exercises/07_threads/11_locks/src/lib.rs:52:1 [INFO] [stdout] | [INFO] [stdout] 52 | enum Command { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] = note: `#[warn(private_interfaces)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling tryfrom v0.1.0 (/opt/rustwide/workdir/exercises/05_ticket_v2/13_try_from) [INFO] [stderr] Compiling runtime v0.1.0 (/opt/rustwide/workdir/exercises/08_futures/03_runtime) [INFO] [stderr] Compiling ticket_fields v0.1.0 (/opt/rustwide/workdir/helpers/ticket_fields) [INFO] [stderr] Compiling thiserror_ v0.1.0 (/opt/rustwide/workdir/exercises/05_ticket_v2/12_thiserror) [INFO] [stderr] Compiling source v0.1.0 (/opt/rustwide/workdir/exercises/05_ticket_v2/14_source) [INFO] [stderr] Compiling outro_04 v0.1.0 (/opt/rustwide/workdir/exercises/05_ticket_v2/15_outro) [INFO] [stderr] Compiling blocking v0.1.0 (/opt/rustwide/workdir/exercises/08_futures/05_blocking) [INFO] [stderr] Compiling deps v0.1.0 (/opt/rustwide/workdir/exercises/05_ticket_v2/11_dependencies) [INFO] [stdout] warning: unused import: `crate::description` [INFO] [stdout] --> exercises/05_ticket_v2/15_outro/src/description.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 5 | use crate::description; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling enum_ v0.1.0 (/opt/rustwide/workdir/exercises/05_ticket_v2/01_enum) [INFO] [stderr] Compiling variants_with_data v0.1.0 (/opt/rustwide/workdir/exercises/05_ticket_v2/03_variants_with_data) [INFO] [stdout] warning: variants `InProgress` and `Done` are never constructed [INFO] [stdout] --> exercises/05_ticket_v2/12_thiserror/src/lib.rs:28:5 [INFO] [stdout] | [INFO] [stdout] 26 | enum Status { [INFO] [stdout] | ------ variants in this enum [INFO] [stdout] 27 | ToDo, [INFO] [stdout] 28 | InProgress { assigned_to: String }, [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] 29 | Done, [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Status` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling error_enums v0.1.0 (/opt/rustwide/workdir/exercises/05_ticket_v2/08_error_enums) [INFO] [stdout] warning: associated items `new`, `title`, `description`, and `status` are never used [INFO] [stdout] --> exercises/05_ticket_v2/01_enum/src/lib.rs:22:12 [INFO] [stdout] | [INFO] [stdout] 21 | impl Ticket { [INFO] [stdout] | ----------- associated items in this implementation [INFO] [stdout] 22 | pub fn new(title: String, description: String, status: Status) -> Ticket { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 43 | pub fn title(&self) -> &String { [INFO] [stdout] | ^^^^^ [INFO] [stdout] ... [INFO] [stdout] 47 | pub fn description(&self) -> &String { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 51 | pub fn status(&self) -> &Status { [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: `anyhow::Error` [INFO] [stdout] --> exercises/05_ticket_v2/11_dependencies/src/lib.rs:6:5 [INFO] [stdout] | [INFO] [stdout] 6 | use anyhow::Error; [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling fallibility v0.1.0 (/opt/rustwide/workdir/exercises/05_ticket_v2/06_fallibility) [INFO] [stdout] warning: unused `Result` in tuple element 0 that must be used [INFO] [stdout] --> exercises/08_futures/03_runtime/src/lib.rs:17:5 [INFO] [stdout] | [INFO] [stdout] 17 | tokio::join!(t1, t2); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` in tuple element 1 that must be used [INFO] [stdout] --> exercises/08_futures/03_runtime/src/lib.rs:17:5 [INFO] [stdout] | [INFO] [stdout] 17 | tokio::join!(t1, t2); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> exercises/05_ticket_v2/08_error_enums/src/lib.rs:7:22 [INFO] [stdout] | [INFO] [stdout] 7 | DescriptionError(String) [INFO] [stdout] | ---------------- ^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] = note: `TicketNewError` 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] 7 - DescriptionError(String) [INFO] [stdout] 7 + DescriptionError(()) [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variants `InProgress` and `Done` are never constructed [INFO] [stdout] --> exercises/05_ticket_v2/08_error_enums/src/lib.rs:34:5 [INFO] [stdout] | [INFO] [stdout] 32 | enum Status { [INFO] [stdout] | ------ variants in this enum [INFO] [stdout] 33 | ToDo, [INFO] [stdout] 34 | InProgress { assigned_to: String }, [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] 35 | Done, [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Status` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling setters v0.1.0 (/opt/rustwide/workdir/exercises/03_ticket_v1/07_setters) [INFO] [stdout] warning: variants `InProgress` and `Done` are never constructed [INFO] [stdout] --> exercises/05_ticket_v2/06_fallibility/src/lib.rs:14:5 [INFO] [stdout] | [INFO] [stdout] 12 | enum Status { [INFO] [stdout] | ------ variants in this enum [INFO] [stdout] 13 | ToDo, [INFO] [stdout] 14 | InProgress { assigned_to: String }, [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] 15 | Done, [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Status` 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] [INFO] [stdout] [INFO] [stderr] Compiling str_slice v0.1.0 (/opt/rustwide/workdir/exercises/04_traits/06_str_slice) [INFO] [stderr] Compiling nullability v0.1.0 (/opt/rustwide/workdir/exercises/05_ticket_v2/05_nullability) [INFO] [stderr] Compiling validation v0.1.0 (/opt/rustwide/workdir/exercises/03_ticket_v1/02_validation) [INFO] [stderr] Compiling unwrap v0.1.0 (/opt/rustwide/workdir/exercises/05_ticket_v2/07_unwrap) [INFO] [stderr] Compiling modules v0.1.0 (/opt/rustwide/workdir/exercises/03_ticket_v1/03_modules) [INFO] [stderr] Compiling copy v0.1.0 (/opt/rustwide/workdir/exercises/04_traits/12_copy) [INFO] [stderr] Compiling derives v0.1.0 (/opt/rustwide/workdir/exercises/04_traits/04_derive) [INFO] [stderr] Compiling assoc_vs_generic v0.1.0 (/opt/rustwide/workdir/exercises/04_traits/10_assoc_vs_generic) [INFO] [stdout] warning: unused import: `std::process::Output` [INFO] [stdout] --> exercises/04_traits/10_assoc_vs_generic/src/lib.rs:16:5 [INFO] [stdout] | [INFO] [stdout] 16 | use std::process::Output; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variants `InProgress` and `Done` are never constructed [INFO] [stdout] --> exercises/05_ticket_v2/07_unwrap/src/lib.rs:27:5 [INFO] [stdout] | [INFO] [stdout] 25 | enum Status { [INFO] [stdout] | ------ variants in this enum [INFO] [stdout] 26 | ToDo, [INFO] [stdout] 27 | InProgress { assigned_to: String }, [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] 28 | Done, [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Status` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling syntax v0.1.0 (/opt/rustwide/workdir/exercises/01_intro/01_syntax) [INFO] [stderr] Compiling mut_slice v0.1.0 (/opt/rustwide/workdir/exercises/06_ticket_management/11_mutable_slices) [INFO] [stderr] Compiling while_ v0.1.0 (/opt/rustwide/workdir/exercises/02_basic_calculator/06_while) [INFO] [stderr] Compiling threads v0.1.0 (/opt/rustwide/workdir/exercises/07_threads/01_threads) [INFO] [stderr] Compiling references_in_memory v0.1.0 (/opt/rustwide/workdir/exercises/03_ticket_v1/10_references_in_memory) [INFO] [stderr] Compiling interior_mutability v0.1.0 (/opt/rustwide/workdir/exercises/07_threads/06_interior_mutability) [INFO] [stderr] Compiling integers v0.1.0 (/opt/rustwide/workdir/exercises/02_basic_calculator/01_integers) [INFO] [stderr] Compiling overflow v0.1.0 (/opt/rustwide/workdir/exercises/02_basic_calculator/08_overflow) [INFO] [stderr] Compiling for_ v0.1.0 (/opt/rustwide/workdir/exercises/02_basic_calculator/07_for) [INFO] [stderr] Compiling saturating v0.1.0 (/opt/rustwide/workdir/exercises/02_basic_calculator/09_saturating) [INFO] [stderr] Compiling drop v0.1.0 (/opt/rustwide/workdir/exercises/04_traits/13_drop) [INFO] [stderr] Compiling vec v0.1.0 (/opt/rustwide/workdir/exercises/06_ticket_management/02_vec) [INFO] [stderr] Compiling arrays v0.1.0 (/opt/rustwide/workdir/exercises/06_ticket_management/01_arrays) [INFO] [stdout] warning: fields `title`, `description`, and `status` are never read [INFO] [stdout] --> exercises/03_ticket_v1/10_references_in_memory/src/lib.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 1 | pub struct Ticket { [INFO] [stdout] | ------ fields in this struct [INFO] [stdout] 2 | title: String, [INFO] [stdout] | ^^^^^ [INFO] [stdout] 3 | description: String, [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] 4 | status: 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::ops::Add` [INFO] [stdout] --> exercises/07_threads/06_interior_mutability/src/lib.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 5 | use std::ops::Add; [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: `bomb` [INFO] [stdout] --> exercises/04_traits/13_drop/src/lib.rs:33:13 [INFO] [stdout] | [INFO] [stdout] 33 | let bomb = DropBomb::new(); [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_bomb` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `a` [INFO] [stdout] --> exercises/07_threads/06_interior_mutability/src/lib.rs:41:17 [INFO] [stdout] | [INFO] [stdout] 41 | let a = DropTracker::new(5, Rc::clone(&counter)); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_a` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `b` [INFO] [stdout] --> exercises/07_threads/06_interior_mutability/src/lib.rs:42:17 [INFO] [stdout] | [INFO] [stdout] 42 | let b = DropTracker::new(6, Rc::clone(&counter)); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_b` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `value` is never read [INFO] [stdout] --> exercises/07_threads/06_interior_mutability/src/lib.rs:9:5 [INFO] [stdout] | [INFO] [stdout] 8 | pub struct DropTracker { [INFO] [stdout] | ----------- field in this struct [INFO] [stdout] 9 | value: T, [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling encapsulation v0.1.0 (/opt/rustwide/workdir/exercises/03_ticket_v1/05_encapsulation) [INFO] [stderr] Compiling stack v0.1.0 (/opt/rustwide/workdir/exercises/03_ticket_v1/08_stack) [INFO] [stderr] Compiling leaking v0.1.0 (/opt/rustwide/workdir/exercises/07_threads/03_leak) [INFO] [stderr] Compiling intro_07 v0.1.0 (/opt/rustwide/workdir/exercises/07_threads/00_intro) [INFO] [stderr] Compiling as_cast v0.1.0 (/opt/rustwide/workdir/exercises/02_basic_calculator/10_as_casting) [INFO] [stderr] Compiling heap v0.1.0 (/opt/rustwide/workdir/exercises/03_ticket_v1/09_heap) [INFO] [stderr] Compiling intro_03 v0.1.0 (/opt/rustwide/workdir/exercises/04_traits/00_intro) [INFO] [stderr] Compiling if_let v0.1.0 (/opt/rustwide/workdir/exercises/05_ticket_v2/04_if_let) [INFO] [stderr] Compiling variables v0.1.0 (/opt/rustwide/workdir/exercises/02_basic_calculator/02_variables) [INFO] [stderr] Compiling welcome_00 v0.1.0 (/opt/rustwide/workdir/exercises/01_intro/00_welcome) [INFO] [stderr] Compiling from v0.1.0 (/opt/rustwide/workdir/exercises/04_traits/09_from) [INFO] [stderr] Compiling if_else v0.1.0 (/opt/rustwide/workdir/exercises/02_basic_calculator/03_if_else) [INFO] [stdout] warning: fields `title`, `description`, and `status` are never read [INFO] [stdout] --> exercises/03_ticket_v1/09_heap/src/lib.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 1 | pub struct Ticket { [INFO] [stdout] | ------ fields in this struct [INFO] [stdout] 2 | title: String, [INFO] [stdout] | ^^^^^ [INFO] [stdout] 3 | description: String, [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] 4 | status: 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: field `border` is never read [INFO] [stdout] --> exercises/05_ticket_v2/04_if_let/src/lib.rs:3:14 [INFO] [stdout] | [INFO] [stdout] 3 | Square { border: f64 }, [INFO] [stdout] | ------ ^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `width` and `height` are never read [INFO] [stdout] --> exercises/05_ticket_v2/04_if_let/src/lib.rs:4:17 [INFO] [stdout] | [INFO] [stdout] 4 | Rectangle { width: f64, height: f64 }, [INFO] [stdout] | --------- ^^^^^ ^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | fields in this variant [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling trait_ v0.1.0 (/opt/rustwide/workdir/exercises/04_traits/01_trait) [INFO] [stdout] warning: unused variable: `wrapping` [INFO] [stdout] --> exercises/04_traits/09_from/src/lib.rs:14:9 [INFO] [stdout] | [INFO] [stdout] 14 | let wrapping: WrappingU32 = 42.into(); [INFO] [stdout] | ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_wrapping` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `wrapping` [INFO] [stdout] --> exercises/04_traits/09_from/src/lib.rs:15:9 [INFO] [stdout] | [INFO] [stdout] 15 | let wrapping = WrappingU32::from(42); [INFO] [stdout] | ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_wrapping` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `value` is never read [INFO] [stdout] --> exercises/04_traits/09_from/src/lib.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 3 | pub struct WrappingU32 { [INFO] [stdout] | ----------- field in this struct [INFO] [stdout] 4 | value: u32, [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 `example` is never used [INFO] [stdout] --> exercises/04_traits/09_from/src/lib.rs:13:4 [INFO] [stdout] | [INFO] [stdout] 13 | fn example() { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling resizing v0.1.0 (/opt/rustwide/workdir/exercises/06_ticket_management/03_resizing) [INFO] [stderr] Compiling deref v0.1.0 (/opt/rustwide/workdir/exercises/04_traits/07_deref) [INFO] [stderr] Compiling orphan v0.1.0 (/opt/rustwide/workdir/exercises/04_traits/02_orphan_rule) [INFO] [stderr] Compiling common v0.1.0 (/opt/rustwide/workdir/helpers/common) [INFO] [stdout] warning: field `status` is never read [INFO] [stdout] --> exercises/04_traits/07_deref/src/lib.rs:10:5 [INFO] [stdout] | [INFO] [stdout] 7 | pub struct Ticket { [INFO] [stdout] | ------ field in this struct [INFO] [stdout] ... [INFO] [stdout] 10 | status: String, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling intro_02 v0.1.0 (/opt/rustwide/workdir/exercises/03_ticket_v1/00_intro) [INFO] [stderr] Compiling static v0.1.0 (/opt/rustwide/workdir/exercises/07_threads/02_static) [INFO] [stderr] Compiling destructor v0.1.0 (/opt/rustwide/workdir/exercises/03_ticket_v1/11_destructor) [INFO] [stderr] Compiling intro_04 v0.1.0 (/opt/rustwide/workdir/exercises/05_ticket_v2/00_intro) [INFO] [stderr] Compiling struct_ v0.1.0 (/opt/rustwide/workdir/exercises/03_ticket_v1/01_struct) [INFO] [stderr] Compiling overloading v0.1.0 (/opt/rustwide/workdir/exercises/04_traits/03_operator_overloading) [INFO] [stderr] Compiling ownership v0.1.0 (/opt/rustwide/workdir/exercises/03_ticket_v1/06_ownership) [INFO] [stderr] Compiling clone v0.1.0 (/opt/rustwide/workdir/exercises/04_traits/11_clone) [INFO] [stderr] Compiling scoped_threads v0.1.0 (/opt/rustwide/workdir/exercises/07_threads/04_scoped_threads) [INFO] [stderr] Compiling intro_08 v0.1.0 (/opt/rustwide/workdir/exercises/08_futures/00_intro) [INFO] [stderr] Compiling visibility v0.1.0 (/opt/rustwide/workdir/exercises/03_ticket_v1/04_visibility) [INFO] [stderr] Compiling factorial v0.1.0 (/opt/rustwide/workdir/exercises/02_basic_calculator/05_factorial) [INFO] [stderr] Compiling intro_01 v0.1.0 (/opt/rustwide/workdir/exercises/02_basic_calculator/00_intro) [INFO] [stderr] Compiling trait_bounds v0.1.0 (/opt/rustwide/workdir/exercises/04_traits/05_trait_bounds) [INFO] [stderr] Compiling sized v0.1.0 (/opt/rustwide/workdir/exercises/04_traits/08_sized) [INFO] [stdout] warning: unused variable: `ticket` [INFO] [stdout] --> exercises/03_ticket_v1/04_visibility/src/lib.rs:71:13 [INFO] [stdout] | [INFO] [stdout] 71 | let ticket = Ticket { [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_ticket` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Ticket` is never constructed [INFO] [stdout] --> exercises/03_ticket_v1/04_visibility/src/lib.rs:2:16 [INFO] [stdout] | [INFO] [stdout] 2 | pub struct Ticket { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `new` is never used [INFO] [stdout] --> exercises/03_ticket_v1/04_visibility/src/lib.rs:9:16 [INFO] [stdout] | [INFO] [stdout] 8 | impl Ticket { [INFO] [stdout] | ----------- associated function in this implementation [INFO] [stdout] 9 | pub fn new(title: String, description: String, status: String) -> Ticket { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `should_not_be_possible` is never used [INFO] [stdout] --> exercises/03_ticket_v1/04_visibility/src/lib.rs:46:8 [INFO] [stdout] | [INFO] [stdout] 46 | fn should_not_be_possible() { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `encapsulation_cannot_be_violated` is never used [INFO] [stdout] --> exercises/03_ticket_v1/04_visibility/src/lib.rs:61:8 [INFO] [stdout] | [INFO] [stdout] 61 | fn encapsulation_cannot_be_violated() { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling slice v0.1.0 (/opt/rustwide/workdir/exercises/06_ticket_management/10_slices) [INFO] [stderr] Compiling intro_05 v0.1.0 (/opt/rustwide/workdir/exercises/06_ticket_management/00_intro) [INFO] [stderr] Compiling match_ v0.1.0 (/opt/rustwide/workdir/exercises/05_ticket_v2/02_match) [INFO] [stderr] Compiling panics v0.1.0 (/opt/rustwide/workdir/exercises/02_basic_calculator/04_panics) [INFO] [stderr] Compiling sync v0.1.0 (/opt/rustwide/workdir/exercises/07_threads/14_sync) [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 7.01s [INFO] running `Command { std: "docker" "inspect" "149ca4e2cf0c4f685ded8e7324eba15ea8a2ec9685ba35e2d4fe813a0f5917a2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "149ca4e2cf0c4f685ded8e7324eba15ea8a2ec9685ba35e2d4fe813a0f5917a2", kill_on_drop: false }` [INFO] [stdout] 149ca4e2cf0c4f685ded8e7324eba15ea8a2ec9685ba35e2d4fe813a0f5917a2 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+f9988fefd3add01f414f52b414308e7872622fee" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 476a760da72b3a5540419be20ebde155bf6ec6d0b306633560097aa6b5aa8fc2 [INFO] running `Command { std: "docker" "start" "-a" "476a760da72b3a5540419be20ebde155bf6ec6d0b306633560097aa6b5aa8fc2", kill_on_drop: false }` [INFO] [stderr] warning: unused import: `TrySendError` [INFO] [stderr] --> exercises/07_threads/11_locks/src/lib.rs:4:59 [INFO] [stderr] | [INFO] [stderr] 4 | use std::sync::mpsc::{sync_channel, Receiver, SyncSender, TrySendError}; [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] [INFO] [stderr] warning: type `Command` is more private than the item `server` [INFO] [stderr] --> exercises/07_threads/11_locks/src/lib.rs:63:1 [INFO] [stderr] | [INFO] [stderr] 63 | pub fn server(receiver: Receiver) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ function `server` is reachable at visibility `pub` [INFO] [stderr] | [INFO] [stderr] note: but type `Command` is only usable at visibility `pub(crate)` [INFO] [stderr] --> exercises/07_threads/11_locks/src/lib.rs:52:1 [INFO] [stderr] | [INFO] [stderr] 52 | enum Command { [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] = note: `#[warn(private_interfaces)]` on by default [INFO] [stderr] [INFO] [stderr] warning: type `Command` is more private than the item `server` [INFO] [stderr] --> exercises/07_threads/10_patch/src/lib.rs:72:1 [INFO] [stderr] | [INFO] [stderr] 72 | pub fn server(receiver: Receiver) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ function `server` is reachable at visibility `pub` [INFO] [stderr] | [INFO] [stderr] note: but type `Command` is only usable at visibility `pub(crate)` [INFO] [stderr] --> exercises/07_threads/10_patch/src/lib.rs:57:1 [INFO] [stderr] | [INFO] [stderr] 57 | enum Command { [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] = note: `#[warn(private_interfaces)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `TrySendError` [INFO] [stderr] --> exercises/07_threads/12_rw_lock/src/lib.rs:3:59 [INFO] [stderr] | [INFO] [stderr] 3 | use std::sync::mpsc::{sync_channel, Receiver, SyncSender, TrySendError}; [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `Mutex` [INFO] [stderr] --> exercises/07_threads/12_rw_lock/src/lib.rs:4:22 [INFO] [stderr] | [INFO] [stderr] 4 | use std::sync::{Arc, Mutex, RwLock}; [INFO] [stderr] | ^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `Mutex` [INFO] [stderr] --> exercises/07_threads/12_rw_lock/src/store.rs:3:22 [INFO] [stderr] | [INFO] [stderr] 3 | use std::sync::{Arc, Mutex, RwLock}; [INFO] [stderr] | ^^^^^ [INFO] [stderr] [INFO] [stderr] warning: type `Command` is more private than the item `server` [INFO] [stderr] --> exercises/07_threads/12_rw_lock/src/lib.rs:62:1 [INFO] [stderr] | [INFO] [stderr] 62 | pub fn server(receiver: Receiver) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ function `server` is reachable at visibility `pub` [INFO] [stderr] | [INFO] [stderr] note: but type `Command` is only usable at visibility `pub(crate)` [INFO] [stderr] --> exercises/07_threads/12_rw_lock/src/lib.rs:51:1 [INFO] [stderr] | [INFO] [stderr] 51 | enum Command { [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] = note: `#[warn(private_interfaces)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused imports: `cell::RefCell` and `rc::Rc` [INFO] [stderr] --> exercises/07_threads/07_ack/src/lib.rs:1:11 [INFO] [stderr] | [INFO] [stderr] 1 | use std::{cell::RefCell, rc::Rc, sync::mpsc::{Receiver, Sender}}; [INFO] [stderr] | ^^^^^^^^^^^^^ ^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `core::error` [INFO] [stderr] --> exercises/07_threads/09_bounded/src/lib.rs:4:5 [INFO] [stderr] | [INFO] [stderr] 4 | use core::error; [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] [INFO] [stderr] warning: unused imports: `Sender` and `TrySendError` [INFO] [stderr] --> exercises/07_threads/09_bounded/src/lib.rs:5:33 [INFO] [stderr] | [INFO] [stderr] 5 | use std::sync::mpsc::{Receiver, Sender, SyncSender, TrySendError}; [INFO] [stderr] | ^^^^^^ ^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: type `Command` is more private than the item `server` [INFO] [stderr] --> exercises/07_threads/09_bounded/src/lib.rs:57:1 [INFO] [stderr] | [INFO] [stderr] 57 | pub fn server(receiver: Receiver) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ function `server` is reachable at visibility `pub` [INFO] [stderr] | [INFO] [stderr] note: but type `Command` is only usable at visibility `pub(crate)` [INFO] [stderr] --> exercises/07_threads/09_bounded/src/lib.rs:46:1 [INFO] [stderr] | [INFO] [stderr] 46 | enum Command { [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] = note: `#[warn(private_interfaces)]` on by default [INFO] [stderr] [INFO] [stderr] warning: `locks` (lib) generated 2 warnings (run `cargo fix --lib -p locks` to apply 1 suggestion) [INFO] [stderr] warning: `patch` (lib) generated 1 warning [INFO] [stderr] warning: `rwlock` (lib) generated 4 warnings (run `cargo fix --lib -p rwlock` to apply 3 suggestions) [INFO] [stderr] warning: `response` (lib) generated 1 warning (run `cargo fix --lib -p response` to apply 1 suggestion) [INFO] [stderr] warning: `bounded` (lib) generated 3 warnings (run `cargo fix --lib -p bounded` to apply 2 suggestions) [INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stderr] --> exercises/06_ticket_management/06_lifetimes/src/lib.rs:43:17 [INFO] [stderr] | [INFO] [stderr] 43 | pub fn iter(&self) -> std::slice::Iter { [INFO] [stderr] | ^^^^^ ^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here [INFO] [stderr] | | [INFO] [stderr] | the lifetime is elided here [INFO] [stderr] | [INFO] [stderr] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stderr] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stderr] help: use `'_` for type paths [INFO] [stderr] | [INFO] [stderr] 43 | pub fn iter(&self) -> std::slice::Iter<'_, Ticket> { [INFO] [stderr] | +++ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::collections::binary_heap::Iter` [INFO] [stderr] --> exercises/06_ticket_management/08_impl_trait/src/lib.rs:1:5 [INFO] [stderr] | [INFO] [stderr] 1 | use std::collections::binary_heap::Iter; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] [INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stderr] --> exercises/06_ticket_management/05_iter/src/lib.rs:38:17 [INFO] [stderr] | [INFO] [stderr] 38 | pub fn iter(&self) -> std::slice::Iter { [INFO] [stderr] | ^^^^^ ^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here [INFO] [stderr] | | [INFO] [stderr] | the lifetime is elided here [INFO] [stderr] | [INFO] [stderr] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stderr] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stderr] help: use `'_` for type paths [INFO] [stderr] | [INFO] [stderr] 38 | pub fn iter(&self) -> std::slice::Iter<'_, Ticket> { [INFO] [stderr] | +++ [INFO] [stderr] [INFO] [stderr] warning: function `spawner` is never used [INFO] [stderr] --> exercises/08_futures/04_future/src/lib.rs:8:4 [INFO] [stderr] | [INFO] [stderr] 8 | fn spawner() { [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] [INFO] [stderr] warning: function `example` is never used [INFO] [stderr] --> exercises/08_futures/04_future/src/lib.rs:12:10 [INFO] [stderr] | [INFO] [stderr] 12 | async fn example() { [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: `lifetime` (lib) generated 1 warning (run `cargo fix --lib -p lifetime` to apply 1 suggestion) [INFO] [stderr] warning: `impl_trait` (lib) generated 1 warning (run `cargo fix --lib -p impl_trait` to apply 1 suggestion) [INFO] [stderr] warning: `iter` (lib) generated 1 warning (run `cargo fix --lib -p iter` to apply 1 suggestion) [INFO] [stderr] warning: `future` (lib) generated 2 warnings [INFO] [stderr] warning: unused `Result` in tuple element 0 that must be used [INFO] [stderr] --> exercises/08_futures/03_runtime/src/lib.rs:17:5 [INFO] [stderr] | [INFO] [stderr] 17 | tokio::join!(t1, t2); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] [INFO] [stderr] warning: unused `Result` in tuple element 1 that must be used [INFO] [stderr] --> exercises/08_futures/03_runtime/src/lib.rs:17:5 [INFO] [stderr] | [INFO] [stderr] 17 | tokio::join!(t1, t2); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused import: `anyhow::Ok` [INFO] [stderr] --> exercises/08_futures/01_async_fn/src/lib.rs:1:5 [INFO] [stderr] | [INFO] [stderr] 1 | use anyhow::Ok; [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `crate::description` [INFO] [stderr] --> exercises/05_ticket_v2/15_outro/src/description.rs:5:5 [INFO] [stderr] | [INFO] [stderr] 5 | use crate::description; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] [INFO] [stderr] warning: enum `Status` is never used [INFO] [stderr] --> exercises/05_ticket_v2/13_try_from/src/lib.rs:5:6 [INFO] [stderr] | [INFO] [stderr] 5 | enum Status { [INFO] [stderr] | ^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] [INFO] [stderr] warning: struct `ParseStatusError` is never constructed [INFO] [stderr] --> exercises/05_ticket_v2/13_try_from/src/lib.rs:13:8 [INFO] [stderr] | [INFO] [stderr] 13 | struct ParseStatusError { [INFO] [stderr] | ^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: enum `TicketNewError` is never used [INFO] [stderr] --> exercises/05_ticket_v2/12_thiserror/src/lib.rs:7:6 [INFO] [stderr] | [INFO] [stderr] 7 | enum TicketNewError { [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] [INFO] [stderr] warning: struct `Ticket` is never constructed [INFO] [stderr] --> exercises/05_ticket_v2/12_thiserror/src/lib.rs:19:8 [INFO] [stderr] | [INFO] [stderr] 19 | struct Ticket { [INFO] [stderr] | ^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: enum `Status` is never used [INFO] [stderr] --> exercises/05_ticket_v2/12_thiserror/src/lib.rs:26:6 [INFO] [stderr] | [INFO] [stderr] 26 | enum Status { [INFO] [stderr] | ^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function `new` is never used [INFO] [stderr] --> exercises/05_ticket_v2/12_thiserror/src/lib.rs:33:12 [INFO] [stderr] | [INFO] [stderr] 32 | impl Ticket { [INFO] [stderr] | ----------- associated function in this implementation [INFO] [stderr] 33 | pub fn new( [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `anyhow::Error` [INFO] [stderr] --> exercises/05_ticket_v2/11_dependencies/src/lib.rs:6:5 [INFO] [stderr] | [INFO] [stderr] 6 | use anyhow::Error; [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::ops::Add` [INFO] [stderr] --> exercises/07_threads/06_interior_mutability/src/lib.rs:5:5 [INFO] [stderr] | [INFO] [stderr] 5 | use std::ops::Add; [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] [INFO] [stderr] warning: field `value` is never read [INFO] [stderr] --> exercises/07_threads/06_interior_mutability/src/lib.rs:9:5 [INFO] [stderr] | [INFO] [stderr] 8 | pub struct DropTracker { [INFO] [stderr] | ----------- field in this struct [INFO] [stderr] 9 | value: T, [INFO] [stderr] | ^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] [INFO] [stderr] warning: fields `title`, `description`, and `status` are never read [INFO] [stderr] --> exercises/03_ticket_v1/09_heap/src/lib.rs:2:5 [INFO] [stderr] | [INFO] [stderr] 1 | pub struct Ticket { [INFO] [stderr] | ------ fields in this struct [INFO] [stderr] 2 | title: String, [INFO] [stderr] | ^^^^^ [INFO] [stderr] 3 | description: String, [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] 4 | status: String, [INFO] [stderr] | ^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] [INFO] [stderr] warning: `runtime` (lib) generated 2 warnings [INFO] [stderr] warning: `async_fn` (lib) generated 1 warning (run `cargo fix --lib -p async_fn` to apply 1 suggestion) [INFO] [stderr] warning: `outro_04` (lib) generated 1 warning (run `cargo fix --lib -p outro_04` to apply 1 suggestion) [INFO] [stderr] warning: `tryfrom` (lib) generated 2 warnings [INFO] [stderr] warning: `thiserror_` (lib) generated 4 warnings [INFO] [stderr] warning: `deps` (lib) generated 1 warning (run `cargo fix --lib -p deps` to apply 1 suggestion) [INFO] [stderr] warning: `interior_mutability` (lib) generated 2 warnings (run `cargo fix --lib -p interior_mutability` to apply 1 suggestion) [INFO] [stderr] warning: `heap` (lib) generated 1 warning [INFO] [stderr] warning: function `easy_ticket` is never used [INFO] [stderr] --> exercises/05_ticket_v2/07_unwrap/src/lib.rs:4:4 [INFO] [stderr] | [INFO] [stderr] 4 | fn easy_ticket(title: String, description: String, status: Status) -> Ticket { [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] [INFO] [stderr] warning: struct `Ticket` is never constructed [INFO] [stderr] --> exercises/05_ticket_v2/07_unwrap/src/lib.rs:18:8 [INFO] [stderr] | [INFO] [stderr] 18 | struct Ticket { [INFO] [stderr] | ^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: enum `Status` is never used [INFO] [stderr] --> exercises/05_ticket_v2/07_unwrap/src/lib.rs:25:6 [INFO] [stderr] | [INFO] [stderr] 25 | enum Status { [INFO] [stderr] | ^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function `new` is never used [INFO] [stderr] --> exercises/05_ticket_v2/07_unwrap/src/lib.rs:32:12 [INFO] [stderr] | [INFO] [stderr] 31 | impl Ticket { [INFO] [stderr] | ----------- associated function in this implementation [INFO] [stderr] 32 | pub fn new(title: String, description: String, status: Status) -> Result { [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: struct `Ticket` is never constructed [INFO] [stderr] --> exercises/05_ticket_v2/05_nullability/src/lib.rs:4:8 [INFO] [stderr] | [INFO] [stderr] 4 | struct Ticket { [INFO] [stderr] | ^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] [INFO] [stderr] warning: enum `Status` is never used [INFO] [stderr] --> exercises/05_ticket_v2/05_nullability/src/lib.rs:11:6 [INFO] [stderr] | [INFO] [stderr] 11 | enum Status { [INFO] [stderr] | ^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated items `new` and `assigned_to` are never used [INFO] [stderr] --> exercises/05_ticket_v2/05_nullability/src/lib.rs:18:12 [INFO] [stderr] | [INFO] [stderr] 17 | impl Ticket { [INFO] [stderr] | ----------- associated items in this implementation [INFO] [stderr] 18 | pub fn new(title: String, description: String, status: Status) -> Ticket { [INFO] [stderr] | ^^^ [INFO] [stderr] ... [INFO] [stderr] 38 | pub fn assigned_to(&self) -> Option<&String> { [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct `Ticket` is never constructed [INFO] [stderr] --> exercises/05_ticket_v2/03_variants_with_data/src/lib.rs:6:8 [INFO] [stderr] | [INFO] [stderr] 6 | struct Ticket { [INFO] [stderr] | ^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] [INFO] [stderr] warning: enum `Status` is never used [INFO] [stderr] --> exercises/05_ticket_v2/03_variants_with_data/src/lib.rs:13:6 [INFO] [stderr] | [INFO] [stderr] 13 | enum Status { [INFO] [stderr] | ^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated items `new` and `assigned_to` are never used [INFO] [stderr] --> exercises/05_ticket_v2/03_variants_with_data/src/lib.rs:20:12 [INFO] [stderr] | [INFO] [stderr] 19 | impl Ticket { [INFO] [stderr] | ----------- associated items in this implementation [INFO] [stderr] 20 | pub fn new(title: String, description: String, status: Status) -> Ticket { [INFO] [stderr] | ^^^ [INFO] [stderr] ... [INFO] [stderr] 40 | pub fn assigned_to(&self) -> &str { [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function `sum` is never used [INFO] [stderr] --> exercises/06_ticket_management/10_slices/src/lib.rs:4:4 [INFO] [stderr] | [INFO] [stderr] 4 | fn sum(slice: &[u32]) -> u32 { [INFO] [stderr] | ^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] [INFO] [stderr] warning: `unwrap` (lib) generated 4 warnings [INFO] [stderr] warning: `nullability` (lib) generated 3 warnings [INFO] [stderr] warning: `variants_with_data` (lib) generated 3 warnings [INFO] [stderr] warning: `slice` (lib) generated 1 warning [INFO] [stderr] warning: function `intro` is never used [INFO] [stderr] --> exercises/05_ticket_v2/00_intro/src/lib.rs:1:4 [INFO] [stderr] | [INFO] [stderr] 1 | fn intro() -> &'static str { [INFO] [stderr] | ^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] [INFO] [stderr] warning: function `outro` is never used [INFO] [stderr] --> exercises/07_threads/14_sync/src/lib.rs:2:4 [INFO] [stderr] | [INFO] [stderr] 2 | fn outro() -> &'static str { [INFO] [stderr] | ^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] [INFO] [stderr] warning: unused imports: `Formatter` and `clone` [INFO] [stderr] --> exercises/05_ticket_v2/09_error_trait/src/lib.rs:6:11 [INFO] [stderr] | [INFO] [stderr] 6 | use std::{clone, fmt::{Error, Formatter}}; [INFO] [stderr] | ^^^^^ ^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] [INFO] [stderr] warning: enum `TicketNewError` is never used [INFO] [stderr] --> exercises/05_ticket_v2/09_error_trait/src/lib.rs:9:6 [INFO] [stderr] | [INFO] [stderr] 9 | enum TicketNewError { [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] [INFO] [stderr] warning: function `easy_ticket` is never used [INFO] [stderr] --> exercises/05_ticket_v2/09_error_trait/src/lib.rs:29:4 [INFO] [stderr] | [INFO] [stderr] 29 | fn easy_ticket(title: String, description: String, status: Status) -> Ticket { [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct `Ticket` is never constructed [INFO] [stderr] --> exercises/05_ticket_v2/09_error_trait/src/lib.rs:42:8 [INFO] [stderr] | [INFO] [stderr] 42 | struct Ticket { [INFO] [stderr] | ^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: enum `Status` is never used [INFO] [stderr] --> exercises/05_ticket_v2/09_error_trait/src/lib.rs:49:6 [INFO] [stderr] | [INFO] [stderr] 49 | enum Status { [INFO] [stderr] | ^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function `new` is never used [INFO] [stderr] --> exercises/05_ticket_v2/09_error_trait/src/lib.rs:56:12 [INFO] [stderr] | [INFO] [stderr] 55 | impl Ticket { [INFO] [stderr] | ----------- associated function in this implementation [INFO] [stderr] 56 | pub fn new( [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: function `intro` is never used [INFO] [stderr] --> exercises/04_traits/00_intro/src/lib.rs:1:4 [INFO] [stderr] | [INFO] [stderr] 1 | fn intro() -> &'static str { [INFO] [stderr] | ^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] [INFO] [stderr] warning: struct `Ticket` is never constructed [INFO] [stderr] --> exercises/05_ticket_v2/06_fallibility/src/lib.rs:5:8 [INFO] [stderr] | [INFO] [stderr] 5 | struct Ticket { [INFO] [stderr] | ^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] [INFO] [stderr] warning: enum `Status` is never used [INFO] [stderr] --> exercises/05_ticket_v2/06_fallibility/src/lib.rs:12:6 [INFO] [stderr] | [INFO] [stderr] 12 | enum Status { [INFO] [stderr] | ^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function `new` is never used [INFO] [stderr] --> exercises/05_ticket_v2/06_fallibility/src/lib.rs:19:12 [INFO] [stderr] | [INFO] [stderr] 18 | impl Ticket { [INFO] [stderr] | ----------- associated function in this implementation [INFO] [stderr] 19 | pub fn new(title: String, description: String, status: Status) -> Result { [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: struct `Ticket` is never constructed [INFO] [stderr] --> exercises/04_traits/03_operator_overloading/src/lib.rs:3:8 [INFO] [stderr] | [INFO] [stderr] 3 | struct Ticket { [INFO] [stderr] | ^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] [INFO] [stderr] warning: function `outro` is never used [INFO] [stderr] --> exercises/03_ticket_v1/11_destructor/src/lib.rs:4:4 [INFO] [stderr] | [INFO] [stderr] 4 | fn outro() -> &'static str { [INFO] [stderr] | ^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] [INFO] [stderr] warning: function `intro` is never used [INFO] [stderr] --> exercises/07_threads/00_intro/src/lib.rs:1:4 [INFO] [stderr] | [INFO] [stderr] 1 | fn intro() -> &'static str { [INFO] [stderr] | ^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] [INFO] [stderr] warning: enum `TicketNewError` is never used [INFO] [stderr] --> exercises/05_ticket_v2/08_error_enums/src/lib.rs:5:6 [INFO] [stderr] | [INFO] [stderr] 5 | enum TicketNewError { [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] [INFO] [stderr] warning: function `easy_ticket` is never used [INFO] [stderr] --> exercises/05_ticket_v2/08_error_enums/src/lib.rs:14:4 [INFO] [stderr] | [INFO] [stderr] 14 | fn easy_ticket(title: String, description: String, status: Status) -> Ticket { [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct `Ticket` is never constructed [INFO] [stderr] --> exercises/05_ticket_v2/08_error_enums/src/lib.rs:25:8 [INFO] [stderr] | [INFO] [stderr] 25 | struct Ticket { [INFO] [stderr] | ^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: enum `Status` is never used [INFO] [stderr] --> exercises/05_ticket_v2/08_error_enums/src/lib.rs:32:6 [INFO] [stderr] | [INFO] [stderr] 32 | enum Status { [INFO] [stderr] | ^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function `new` is never used [INFO] [stderr] --> exercises/05_ticket_v2/08_error_enums/src/lib.rs:39:12 [INFO] [stderr] | [INFO] [stderr] 38 | impl Ticket { [INFO] [stderr] | ----------- associated function in this implementation [INFO] [stderr] 39 | pub fn new( [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: `intro_04` (lib) generated 1 warning [INFO] [stderr] warning: `sync` (lib) generated 1 warning [INFO] [stderr] warning: `error_trait` (lib) generated 6 warnings (run `cargo fix --lib -p error_trait` to apply 1 suggestion) [INFO] [stderr] warning: `intro_03` (lib) generated 1 warning [INFO] [stderr] warning: `fallibility` (lib) generated 3 warnings [INFO] [stderr] warning: `overloading` (lib) generated 1 warning [INFO] [stderr] warning: `destructor` (lib) generated 1 warning [INFO] [stderr] warning: `intro_07` (lib) generated 1 warning [INFO] [stderr] warning: `error_enums` (lib) generated 5 warnings [INFO] [stderr] warning: function `intro` is never used [INFO] [stderr] --> exercises/08_futures/00_intro/src/lib.rs:1:4 [INFO] [stderr] | [INFO] [stderr] 1 | fn intro() -> &'static str { [INFO] [stderr] | ^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] [INFO] [stderr] warning: fields `title`, `description`, and `status` are never read [INFO] [stderr] --> exercises/03_ticket_v1/10_references_in_memory/src/lib.rs:2:5 [INFO] [stderr] | [INFO] [stderr] 1 | pub struct Ticket { [INFO] [stderr] | ------ fields in this struct [INFO] [stderr] 2 | title: String, [INFO] [stderr] | ^^^^^ [INFO] [stderr] 3 | description: String, [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] 4 | status: String, [INFO] [stderr] | ^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::process::Output` [INFO] [stderr] --> exercises/04_traits/10_assoc_vs_generic/src/lib.rs:16:5 [INFO] [stderr] | [INFO] [stderr] 16 | use std::process::Output; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] [INFO] [stderr] warning: struct `Ticket` is never constructed [INFO] [stderr] --> exercises/03_ticket_v1/04_visibility/src/lib.rs:2:16 [INFO] [stderr] | [INFO] [stderr] 2 | pub struct Ticket { [INFO] [stderr] | ^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] [INFO] [stderr] warning: associated function `new` is never used [INFO] [stderr] --> exercises/03_ticket_v1/04_visibility/src/lib.rs:9:16 [INFO] [stderr] | [INFO] [stderr] 8 | impl Ticket { [INFO] [stderr] | ----------- associated function in this implementation [INFO] [stderr] 9 | pub fn new(title: String, description: String, status: String) -> Ticket { [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: function `squared` is never used [INFO] [stderr] --> exercises/06_ticket_management/11_mutable_slices/src/lib.rs:4:4 [INFO] [stderr] | [INFO] [stderr] 4 | fn squared(slice: &mut [i32]) { [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] [INFO] [stderr] warning: function `intro` is never used [INFO] [stderr] --> exercises/06_ticket_management/00_intro/src/lib.rs:1:4 [INFO] [stderr] | [INFO] [stderr] 1 | fn intro() -> &'static str { [INFO] [stderr] | ^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] [INFO] [stderr] warning: struct `Ticket` is never constructed [INFO] [stderr] --> exercises/04_traits/04_derive/src/lib.rs:13:8 [INFO] [stderr] | [INFO] [stderr] 13 | struct Ticket { [INFO] [stderr] | ^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] [INFO] [stderr] warning: enum `Shape` is never used [INFO] [stderr] --> exercises/05_ticket_v2/04_if_let/src/lib.rs:1:6 [INFO] [stderr] | [INFO] [stderr] 1 | enum Shape { [INFO] [stderr] | ^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] [INFO] [stderr] warning: method `radius` is never used [INFO] [stderr] --> exercises/05_ticket_v2/04_if_let/src/lib.rs:10:12 [INFO] [stderr] | [INFO] [stderr] 7 | impl Shape { [INFO] [stderr] | ---------- method in this implementation [INFO] [stderr] ... [INFO] [stderr] 10 | pub fn radius(&self) -> f64 { [INFO] [stderr] | ^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused variable: `wrapping` [INFO] [stderr] --> exercises/04_traits/09_from/src/lib.rs:14:9 [INFO] [stderr] | [INFO] [stderr] 14 | let wrapping: WrappingU32 = 42.into(); [INFO] [stderr] | ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_wrapping` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `wrapping` [INFO] [stderr] --> exercises/04_traits/09_from/src/lib.rs:15:9 [INFO] [stderr] | [INFO] [stderr] 15 | let wrapping = WrappingU32::from(42); [INFO] [stderr] | ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_wrapping` [INFO] [stderr] [INFO] [stderr] warning: field `value` is never read [INFO] [stderr] --> exercises/04_traits/09_from/src/lib.rs:4:5 [INFO] [stderr] | [INFO] [stderr] 3 | pub struct WrappingU32 { [INFO] [stderr] | ----------- field in this struct [INFO] [stderr] 4 | value: u32, [INFO] [stderr] | ^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] [INFO] [stderr] warning: function `example` is never used [INFO] [stderr] --> exercises/04_traits/09_from/src/lib.rs:13:4 [INFO] [stderr] | [INFO] [stderr] 13 | fn example() { [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: `intro_08` (lib) generated 1 warning [INFO] [stderr] warning: `references_in_memory` (lib) generated 1 warning [INFO] [stderr] warning: `assoc_vs_generic` (lib) generated 1 warning (run `cargo fix --lib -p assoc_vs_generic` to apply 1 suggestion) [INFO] [stderr] warning: `visibility` (lib) generated 2 warnings [INFO] [stderr] warning: `mut_slice` (lib) generated 1 warning [INFO] [stderr] warning: `intro_05` (lib) generated 1 warning [INFO] [stderr] warning: `derives` (lib) generated 1 warning [INFO] [stderr] warning: `if_let` (lib) generated 2 warnings [INFO] [stderr] warning: `from` (lib) generated 4 warnings (run `cargo fix --lib -p from` to apply 2 suggestions) [INFO] [stderr] warning: enum `Shape` is never used [INFO] [stderr] --> exercises/05_ticket_v2/02_match/src/lib.rs:1:6 [INFO] [stderr] | [INFO] [stderr] 1 | enum Shape { [INFO] [stderr] | ^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] [INFO] [stderr] warning: method `n_sides` is never used [INFO] [stderr] --> exercises/05_ticket_v2/02_match/src/lib.rs:11:12 [INFO] [stderr] | [INFO] [stderr] 9 | impl Shape { [INFO] [stderr] | ---------- method in this implementation [INFO] [stderr] 10 | // TODO: Implement the `n_sides` method using a `match`. [INFO] [stderr] 11 | pub fn n_sides(&self) -> u8 { [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct `Ticket` is never constructed [INFO] [stderr] --> exercises/05_ticket_v2/01_enum/src/lib.rs:7:8 [INFO] [stderr] | [INFO] [stderr] 7 | struct Ticket { [INFO] [stderr] | ^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] [INFO] [stderr] warning: enum `Status` is never used [INFO] [stderr] --> exercises/05_ticket_v2/01_enum/src/lib.rs:14:6 [INFO] [stderr] | [INFO] [stderr] 14 | enum Status { [INFO] [stderr] | ^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated items `new`, `title`, `description`, and `status` are never used [INFO] [stderr] --> exercises/05_ticket_v2/01_enum/src/lib.rs:22:12 [INFO] [stderr] | [INFO] [stderr] 21 | impl Ticket { [INFO] [stderr] | ----------- associated items in this implementation [INFO] [stderr] 22 | pub fn new(title: String, description: String, status: Status) -> Ticket { [INFO] [stderr] | ^^^ [INFO] [stderr] ... [INFO] [stderr] 43 | pub fn title(&self) -> &String { [INFO] [stderr] | ^^^^^ [INFO] [stderr] ... [INFO] [stderr] 47 | pub fn description(&self) -> &String { [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] ... [INFO] [stderr] 51 | pub fn status(&self) -> &Status { [INFO] [stderr] | ^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: field `status` is never read [INFO] [stderr] --> exercises/04_traits/07_deref/src/lib.rs:10:5 [INFO] [stderr] | [INFO] [stderr] 7 | pub struct Ticket { [INFO] [stderr] | ------ field in this struct [INFO] [stderr] ... [INFO] [stderr] 10 | status: String, [INFO] [stderr] | ^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] [INFO] [stderr] warning: `match_` (lib) generated 2 warnings [INFO] [stderr] warning: `enum_` (lib) generated 3 warnings [INFO] [stderr] warning: `deref` (lib) generated 1 warning [INFO] [stderr] warning: variants `InProgress` and `Done` are never constructed [INFO] [stderr] --> exercises/05_ticket_v2/09_error_trait/src/lib.rs:51:5 [INFO] [stderr] | [INFO] [stderr] 49 | enum Status { [INFO] [stderr] | ------ variants in this enum [INFO] [stderr] 50 | ToDo, [INFO] [stderr] 51 | InProgress { assigned_to: String }, [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] 52 | Done, [INFO] [stderr] | ^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `Status` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis [INFO] [stderr] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] [INFO] [stderr] warning: `error_trait` (lib test) generated 2 warnings (1 duplicate) [INFO] [stderr] warning: unused variable: `ticket2` [INFO] [stderr] --> exercises/06_ticket_management/12_two_states/src/lib.rs:93:13 [INFO] [stderr] | [INFO] [stderr] 93 | let ticket2 = store.get(id2).unwrap(); [INFO] [stderr] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_ticket2` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `ticket2` [INFO] [stderr] --> exercises/06_ticket_management/13_index/src/lib.rs:102:13 [INFO] [stderr] | [INFO] [stderr] 102 | let ticket2 = &store[&id2]; [INFO] [stderr] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_ticket2` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] [INFO] [stderr] warning: `rwlock` (lib test) generated 4 warnings (4 duplicates) [INFO] [stderr] warning: `impl_trait` (lib test) generated 1 warning (1 duplicate) [INFO] [stderr] warning: `lifetime` (lib test) generated 1 warning (1 duplicate) [INFO] [stderr] warning: `patch` (lib test) generated 1 warning (1 duplicate) [INFO] [stderr] warning: `locks` (lib test) generated 2 warnings (2 duplicates) [INFO] [stderr] warning: `two_states` (lib test) generated 1 warning (run `cargo fix --lib -p two_states --tests` to apply 1 suggestion) [INFO] [stderr] warning: `index` (lib test) generated 1 warning (run `cargo fix --lib -p index --tests` to apply 1 suggestion) [INFO] [stderr] warning: `iter` (lib test) generated 1 warning (1 duplicate) [INFO] [stderr] warning: `response` (lib test) generated 1 warning (1 duplicate) [INFO] [stderr] warning: unused variable: `i` [INFO] [stderr] --> exercises/06_ticket_management/16_btreemap/src/lib.rs:118:13 [INFO] [stderr] | [INFO] [stderr] 118 | for i in 0..n_tickets { [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] [INFO] [stderr] warning: variants `InProgress` and `Done` are never constructed [INFO] [stderr] --> exercises/05_ticket_v2/12_thiserror/src/lib.rs:28:5 [INFO] [stderr] | [INFO] [stderr] 26 | enum Status { [INFO] [stderr] | ------ variants in this enum [INFO] [stderr] 27 | ToDo, [INFO] [stderr] 28 | InProgress { assigned_to: String }, [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] 29 | Done, [INFO] [stderr] | ^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `Status` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis [INFO] [stderr] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] [INFO] [stderr] warning: `btreemap` (lib test) generated 1 warning (run `cargo fix --lib -p btreemap --tests` to apply 1 suggestion) [INFO] [stderr] warning: `bounded` (lib test) generated 3 warnings (3 duplicates) [INFO] [stderr] warning: `thiserror_` (lib test) generated 1 warning [INFO] [stderr] warning: `runtime` (lib test) generated 2 warnings (2 duplicates) [INFO] [stderr] warning: `outro_04` (lib test) generated 1 warning (1 duplicate) [INFO] [stderr] warning: `async_fn` (lib test) generated 1 warning (1 duplicate) [INFO] [stderr] warning: `future` (lib test) generated 2 warnings (2 duplicates) [INFO] [stderr] warning: field `0` is never read [INFO] [stderr] --> exercises/05_ticket_v2/08_error_enums/src/lib.rs:7:22 [INFO] [stderr] | [INFO] [stderr] 7 | DescriptionError(String) [INFO] [stderr] | ---------------- ^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | field in this variant [INFO] [stderr] | [INFO] [stderr] = note: `TicketNewError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stderr] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stderr] | [INFO] [stderr] 7 - DescriptionError(String) [INFO] [stderr] 7 + DescriptionError(()) [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: variants `InProgress` and `Done` are never constructed [INFO] [stderr] --> exercises/05_ticket_v2/08_error_enums/src/lib.rs:34:5 [INFO] [stderr] | [INFO] [stderr] 32 | enum Status { [INFO] [stderr] | ------ variants in this enum [INFO] [stderr] 33 | ToDo, [INFO] [stderr] 34 | InProgress { assigned_to: String }, [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] 35 | Done, [INFO] [stderr] | ^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `Status` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis [INFO] [stderr] [INFO] [stderr] warning: variants `InProgress` and `Done` are never constructed [INFO] [stderr] --> exercises/05_ticket_v2/06_fallibility/src/lib.rs:14:5 [INFO] [stderr] | [INFO] [stderr] 12 | enum Status { [INFO] [stderr] | ------ variants in this enum [INFO] [stderr] 13 | ToDo, [INFO] [stderr] 14 | InProgress { assigned_to: String }, [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] 15 | Done, [INFO] [stderr] | ^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `Status` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stderr] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] [INFO] [stderr] warning: variants `InProgress` and `Done` are never constructed [INFO] [stderr] --> exercises/05_ticket_v2/07_unwrap/src/lib.rs:27:5 [INFO] [stderr] | [INFO] [stderr] 25 | enum Status { [INFO] [stderr] | ------ variants in this enum [INFO] [stderr] 26 | ToDo, [INFO] [stderr] 27 | InProgress { assigned_to: String }, [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] 28 | Done, [INFO] [stderr] | ^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `Status` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis [INFO] [stderr] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] [INFO] [stderr] warning: associated items `new`, `title`, `description`, and `status` are never used [INFO] [stderr] --> exercises/05_ticket_v2/01_enum/src/lib.rs:22:12 [INFO] [stderr] | [INFO] [stderr] 21 | impl Ticket { [INFO] [stderr] | ----------- associated items in this implementation [INFO] [stderr] 22 | pub fn new(title: String, description: String, status: Status) -> Ticket { [INFO] [stderr] | ^^^ [INFO] [stderr] ... [INFO] [stderr] 43 | pub fn title(&self) -> &String { [INFO] [stderr] | ^^^^^ [INFO] [stderr] ... [INFO] [stderr] 47 | pub fn description(&self) -> &String { [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] ... [INFO] [stderr] 51 | pub fn status(&self) -> &Status { [INFO] [stderr] | ^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] [INFO] [stderr] warning: `deps` (lib test) generated 1 warning (1 duplicate) [INFO] [stderr] warning: `error_enums` (lib test) generated 2 warnings [INFO] [stderr] warning: `fallibility` (lib test) generated 1 warning [INFO] [stderr] warning: `unwrap` (lib test) generated 1 warning [INFO] [stderr] warning: `enum_` (lib test) generated 1 warning [INFO] [stderr] warning: `assoc_vs_generic` (lib test) generated 1 warning (1 duplicate) [INFO] [stderr] warning: `references_in_memory` (lib test) generated 1 warning (1 duplicate) [INFO] [stderr] warning: `from` (lib test) generated 4 warnings (4 duplicates) [INFO] [stderr] warning: unused variable: `ticket` [INFO] [stderr] --> exercises/03_ticket_v1/04_visibility/src/lib.rs:71:13 [INFO] [stderr] | [INFO] [stderr] 71 | let ticket = Ticket { [INFO] [stderr] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_ticket` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] [INFO] [stderr] warning: function `should_not_be_possible` is never used [INFO] [stderr] --> exercises/03_ticket_v1/04_visibility/src/lib.rs:46:8 [INFO] [stderr] | [INFO] [stderr] 46 | fn should_not_be_possible() { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function `encapsulation_cannot_be_violated` is never used [INFO] [stderr] --> exercises/03_ticket_v1/04_visibility/src/lib.rs:61:8 [INFO] [stderr] | [INFO] [stderr] 61 | fn encapsulation_cannot_be_violated() { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused variable: `a` [INFO] [stderr] --> exercises/07_threads/06_interior_mutability/src/lib.rs:41:17 [INFO] [stderr] | [INFO] [stderr] 41 | let a = DropTracker::new(5, Rc::clone(&counter)); [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_a` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `b` [INFO] [stderr] --> exercises/07_threads/06_interior_mutability/src/lib.rs:42:17 [INFO] [stderr] | [INFO] [stderr] 42 | let b = DropTracker::new(6, Rc::clone(&counter)); [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_b` [INFO] [stderr] [INFO] [stderr] warning: `visibility` (lib test) generated 5 warnings (2 duplicates) (run `cargo fix --lib -p visibility --tests` to apply 1 suggestion) [INFO] [stderr] warning: `deref` (lib test) generated 1 warning (1 duplicate) [INFO] [stderr] warning: `interior_mutability` (lib test) generated 4 warnings (2 duplicates) (run `cargo fix --lib -p interior_mutability --tests` to apply 2 suggestions) [INFO] [stderr] warning: field `border` is never read [INFO] [stderr] --> exercises/05_ticket_v2/04_if_let/src/lib.rs:3:14 [INFO] [stderr] | [INFO] [stderr] 3 | Square { border: f64 }, [INFO] [stderr] | ------ ^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | field in this variant [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] [INFO] [stderr] warning: fields `width` and `height` are never read [INFO] [stderr] --> exercises/05_ticket_v2/04_if_let/src/lib.rs:4:17 [INFO] [stderr] | [INFO] [stderr] 4 | Rectangle { width: f64, height: f64 }, [INFO] [stderr] | --------- ^^^^^ ^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | fields in this variant [INFO] [stderr] [INFO] [stderr] warning: unused variable: `bomb` [INFO] [stderr] --> exercises/04_traits/13_drop/src/lib.rs:33:13 [INFO] [stderr] | [INFO] [stderr] 33 | let bomb = DropBomb::new(); [INFO] [stderr] | ^^^^ help: if this is intentional, prefix it with an underscore: `_bomb` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] [INFO] [stderr] warning: `if_let` (lib test) generated 2 warnings [INFO] [stderr] warning: `drop` (lib test) generated 1 warning (run `cargo fix --lib -p drop --tests` to apply 1 suggestion) [INFO] [stderr] warning: `heap` (lib test) generated 1 warning (1 duplicate) [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.56s [INFO] [stderr] Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/arrays-d702e2cd3641ad32) [INFO] [stdout] [INFO] [stdout] running 1 test [INFO] [stdout] test tests::test_get_temperature ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stderr] Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/as_cast-0d97e0057c3a4b3d) [INFO] [stdout] [INFO] [stdout] running 3 tests [INFO] [stdout] test tests::bool_to_u8 ... ok [INFO] [stdout] test tests::u8_to_i8 ... ok [INFO] [stdout] test tests::u16_to_u32 ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stderr] Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/assoc_vs_generic-f92755edd88c5969) [INFO] [stdout] [INFO] [stdout] running 3 tests [INFO] [stdout] test tests::test_power_u32 ... ok [INFO] [stdout] test tests::test_power_ref_u32 ... ok [INFO] [stderr] Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/async_fn-33d171d5b6cc3593) [INFO] [stdout] test tests::test_power_u16 ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] running 1 test [INFO] [stdout] test tests::test_echo ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stderr] Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/async_locks-11f20e4ba7c2d9f1) [INFO] [stdout] [INFO] [stdout] running 1 test [INFO] [stdout] test tests::ping has been running for over 60 seconds [ERROR] error running command: no output for 300 seconds [INFO] running `Command { std: "docker" "inspect" "476a760da72b3a5540419be20ebde155bf6ec6d0b306633560097aa6b5aa8fc2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "476a760da72b3a5540419be20ebde155bf6ec6d0b306633560097aa6b5aa8fc2", kill_on_drop: false }` [INFO] [stdout] 476a760da72b3a5540419be20ebde155bf6ec6d0b306633560097aa6b5aa8fc2