[INFO] cloning repository https://github.com/Antonybyrt/exercises-rust [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Antonybyrt/exercises-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAntonybyrt%2Fexercises-rust", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAntonybyrt%2Fexercises-rust'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] e3322dc95c1e7f52de06badd6ea67a76fb94a909 [INFO] testing Antonybyrt/exercises-rust against try#8de4c7234dd9b97c9d76b58671343fdbbc9a433e+target=x86_64-unknown-linux-musl for musl_upgrade_1_2_5_with_libc_patch_0 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAntonybyrt%2Fexercises-rust" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/Antonybyrt/exercises-rust [INFO] finished tweaking git repo https://github.com/Antonybyrt/exercises-rust [INFO] tweaked toml for git repo https://github.com/Antonybyrt/exercises-rust written to /workspace/builds/worker-1-tc1/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/Antonybyrt/exercises-rust on toolchain 8de4c7234dd9b97c9d76b58671343fdbbc9a433e [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/Antonybyrt/exercises-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" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded pulldown-cmark-to-cmark v15.0.1 [INFO] [stderr] Downloaded pulldown-cmark-escape v0.11.0 [INFO] [stderr] Downloaded pulldown-cmark-escape v0.10.1 [INFO] [stderr] Downloaded topological-sort v0.2.2 [INFO] [stderr] Downloaded opener v0.7.1 [INFO] [stderr] Downloaded mac v0.1.1 [INFO] [stderr] Downloaded tempfile v3.11.0 [INFO] [stderr] Downloaded string_cache_codegen v0.5.2 [INFO] [stderr] Downloaded futf v0.1.5 [INFO] [stderr] Downloaded markup5ever v0.12.1 [INFO] [stderr] Downloaded clap_complete v4.5.12 [INFO] [stderr] Downloaded html5ever v0.27.0 [INFO] [stderr] Downloaded handlebars v5.1.2 [INFO] [stderr] Downloaded elasticlunr-rs v3.0.2 [INFO] [stderr] Downloaded pulldown-cmark v0.11.0 [INFO] [stderr] Downloaded dbus v0.9.7 [INFO] [stderr] Downloaded pulldown-cmark v0.10.3 [INFO] [stderr] Downloaded clap_builder v4.5.13 [INFO] [stderr] Downloaded clap v4.5.13 [INFO] [stderr] Downloaded ignore v0.4.22 [INFO] [stderr] Downloaded normpath v1.3.0 [INFO] 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"ghcr.io/rust-lang/crates-build-env/linux@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 197ce4ba93b3b196722ed7d035ca0529beb1c0234af7bad5bc0e0c29eede9375 [INFO] running `Command { std: "docker" "start" "-a" "197ce4ba93b3b196722ed7d035ca0529beb1c0234af7bad5bc0e0c29eede9375", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "197ce4ba93b3b196722ed7d035ca0529beb1c0234af7bad5bc0e0c29eede9375", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "197ce4ba93b3b196722ed7d035ca0529beb1c0234af7bad5bc0e0c29eede9375", kill_on_drop: false }` [INFO] [stdout] 197ce4ba93b3b196722ed7d035ca0529beb1c0234af7bad5bc0e0c29eede9375 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "build" "--frozen" "--message-format=json" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }` [INFO] [stdout] 53b58197830fd9f13012b7d10b5f0ec67b8a204d32b389373ca537231580098c [INFO] running `Command { std: "docker" "start" "-a" "53b58197830fd9f13012b7d10b5f0ec67b8a204d32b389373ca537231580098c", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.86 [INFO] [stderr] Compiling unicode-ident v1.0.12 [INFO] [stderr] Compiling libc v0.2.155 [INFO] [stderr] Compiling thiserror v1.0.63 [INFO] [stderr] Compiling cfg-if v1.0.0 [INFO] [stderr] Compiling autocfg v1.3.0 [INFO] [stderr] Compiling version_check v0.9.5 [INFO] [stderr] Compiling bytes v1.7.1 [INFO] [stderr] Compiling parking_lot_core v0.9.10 [INFO] [stderr] Compiling smallvec v1.13.2 [INFO] [stderr] Compiling scopeguard v1.2.0 [INFO] [stderr] Compiling log v0.4.22 [INFO] [stderr] Compiling pin-project-lite v0.2.14 [INFO] [stderr] Compiling memchr v2.7.4 [INFO] [stderr] Compiling itoa v1.0.11 [INFO] [stderr] Compiling common v0.1.0 (/opt/rustwide/workdir/helpers/common) [INFO] [stderr] Compiling serde v1.0.204 [INFO] [stderr] 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v0.9.6 [INFO] [stderr] Compiling crossbeam-channel v0.5.13 [INFO] [stderr] Compiling headers v0.3.9 [INFO] [stderr] Compiling crossbeam-epoch v0.9.18 [INFO] [stderr] Compiling filetime v0.2.23 [INFO] [stderr] Compiling mio v0.8.11 [INFO] [stderr] Compiling pulldown-cmark v0.10.3 [INFO] [stderr] Compiling scoped-tls v1.0.1 [INFO] [stderr] Compiling crossbeam-deque v0.8.5 [INFO] [stderr] Compiling fastrand v2.1.0 [INFO] [stderr] Compiling semver v1.0.23 [INFO] [stderr] Compiling humantime v2.1.0 [INFO] [stderr] Compiling iana-time-zone v0.1.60 [INFO] [stderr] Compiling maplit v1.0.2 [INFO] [stderr] Compiling pulldown-cmark-escape v0.10.1 [INFO] [stderr] Compiling notify v6.1.1 [INFO] [stderr] Compiling shlex v1.3.0 [INFO] [stderr] Compiling terminal_size v0.3.0 [INFO] [stderr] Compiling tempfile v3.11.0 [INFO] [stderr] Compiling unicode-width v0.1.13 [INFO] [stderr] Compiling pathdiff v0.2.1 [INFO] [stderr] Compiling topological-sort v0.2.2 [INFO] [stderr] Compiling pulldown-cmark v0.11.0 [INFO] [stderr] Compiling getopts v0.2.21 [INFO] [stderr] Compiling pulldown-cmark-escape v0.11.0 [INFO] [stderr] Compiling either v1.13.0 [INFO] [stderr] Compiling uuid v1.11.0 [INFO] [stderr] Compiling clap_builder v4.5.13 [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] [stderr] Compiling itertools v0.13.0 [INFO] [stderr] Compiling static v0.1.0 (/opt/rustwide/workdir/exercises/07_threads/02_static) [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)]` on by default [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: `std::fmt` [INFO] [stdout] --> exercises/05_ticket_v2/15_outro/src/description.rs:6:5 [INFO] [stdout] | [INFO] [stdout] 6 | use std::fmt; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::fmt` [INFO] [stdout] --> exercises/05_ticket_v2/15_outro/src/status.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | use std::fmt; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::fmt` [INFO] [stdout] --> exercises/05_ticket_v2/15_outro/src/title.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 5 | use std::fmt; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling chrono v0.4.38 [INFO] [stderr] Compiling regex v1.10.6 [INFO] [stderr] Compiling bstr v1.10.0 [INFO] [stderr] Compiling notify-debouncer-mini v0.4.1 [INFO] [stderr] Compiling trait_ v0.1.0 (/opt/rustwide/workdir/exercises/04_traits/01_trait) [INFO] [stdout] warning: trait `IsEven` is never used [INFO] [stdout] --> exercises/04_traits/01_trait/src/lib.rs:5:7 [INFO] [stdout] | [INFO] [stdout] 5 | trait IsEven { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling vec v0.1.0 (/opt/rustwide/workdir/exercises/06_ticket_management/02_vec) [INFO] [stderr] Compiling enum_ v0.1.0 (/opt/rustwide/workdir/exercises/05_ticket_v2/01_enum) [INFO] [stderr] Compiling heap v0.1.0 (/opt/rustwide/workdir/exercises/03_ticket_v1/09_heap) [INFO] [stdout] warning: enum `Status` is never used [INFO] [stdout] --> exercises/05_ticket_v2/01_enum/src/lib.rs:2:6 [INFO] [stdout] | [INFO] [stdout] 2 | enum Status { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Status` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling intro_04 v0.1.0 (/opt/rustwide/workdir/exercises/05_ticket_v2/00_intro) [INFO] [stdout] warning: struct `Ticket` is never constructed [INFO] [stdout] --> exercises/05_ticket_v2/01_enum/src/lib.rs:9:8 [INFO] [stdout] | [INFO] [stdout] 9 | struct Ticket { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Ticket` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [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:16:12 [INFO] [stdout] | [INFO] [stdout] 15 | impl Ticket { [INFO] [stdout] | ----------- associated items in this implementation [INFO] [stdout] 16 | pub fn new(title: String, description: String, status: Status) -> Ticket { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 37 | pub fn title(&self) -> &String { [INFO] [stdout] | ^^^^^ [INFO] [stdout] ... [INFO] [stdout] 41 | pub fn description(&self) -> &String { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 45 | pub fn status(&self) -> &Status { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling for_ v0.1.0 (/opt/rustwide/workdir/exercises/02_basic_calculator/07_for) [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)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling struct_ v0.1.0 (/opt/rustwide/workdir/exercises/03_ticket_v1/01_struct) [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)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling resizing v0.1.0 (/opt/rustwide/workdir/exercises/06_ticket_management/03_resizing) [INFO] [stderr] Compiling slice v0.1.0 (/opt/rustwide/workdir/exercises/06_ticket_management/10_slices) [INFO] [stderr] Compiling mut_slice v0.1.0 (/opt/rustwide/workdir/exercises/06_ticket_management/11_mutable_slices) [INFO] [stdout] warning: function `sum` is never used [INFO] [stdout] --> exercises/06_ticket_management/10_slices/src/lib.rs:3:4 [INFO] [stdout] | [INFO] [stdout] 3 | fn sum(slice: &[u32]) -> u32 { [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` 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] [stdout] warning: function `squared` is never used [INFO] [stdout] --> exercises/06_ticket_management/11_mutable_slices/src/lib.rs:3:4 [INFO] [stdout] | [INFO] [stdout] 3 | fn squared(slice: &mut [i32]) { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling intro_07 v0.1.0 (/opt/rustwide/workdir/exercises/07_threads/00_intro) [INFO] [stderr] Compiling env_filter v0.1.2 [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)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling orphan v0.1.0 (/opt/rustwide/workdir/exercises/04_traits/02_orphan_rule) [INFO] [stderr] Compiling clone v0.1.0 (/opt/rustwide/workdir/exercises/04_traits/11_clone) [INFO] [stderr] Compiling copy v0.1.0 (/opt/rustwide/workdir/exercises/04_traits/12_copy) [INFO] [stderr] Compiling welcome_00 v0.1.0 (/opt/rustwide/workdir/exercises/01_intro/00_welcome) [INFO] [stderr] Compiling factorial v0.1.0 (/opt/rustwide/workdir/exercises/02_basic_calculator/05_factorial) [INFO] [stderr] Compiling destructor v0.1.0 (/opt/rustwide/workdir/exercises/03_ticket_v1/11_destructor) [INFO] [stderr] Compiling from v0.1.0 (/opt/rustwide/workdir/exercises/04_traits/09_from) [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)]` 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)]` 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)]` 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 match_ v0.1.0 (/opt/rustwide/workdir/exercises/05_ticket_v2/02_match) [INFO] [stderr] Compiling integers v0.1.0 (/opt/rustwide/workdir/exercises/02_basic_calculator/01_integers) [INFO] [stderr] Compiling sync v0.1.0 (/opt/rustwide/workdir/exercises/07_threads/14_sync) [INFO] [stderr] Compiling str_slice v0.1.0 (/opt/rustwide/workdir/exercises/04_traits/06_str_slice) [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)]` 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:10:12 [INFO] [stdout] | [INFO] [stdout] 9 | impl Shape { [INFO] [stdout] | ---------- method in this implementation [INFO] [stdout] 10 | pub fn n_sides(&self) -> u8 { [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)]` 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 tryfrom v0.1.0 (/opt/rustwide/workdir/exercises/05_ticket_v2/13_try_from) [INFO] [stderr] Compiling visibility v0.1.0 (/opt/rustwide/workdir/exercises/03_ticket_v1/04_visibility) [INFO] [stderr] Compiling derives v0.1.0 (/opt/rustwide/workdir/exercises/04_traits/04_derive) [INFO] [stderr] Compiling validation v0.1.0 (/opt/rustwide/workdir/exercises/03_ticket_v1/02_validation) [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)]` 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 env_logger v0.11.5 [INFO] [stdout] warning: struct `Ticket` is never constructed [INFO] [stdout] --> exercises/04_traits/04_derive/src/lib.rs:12:8 [INFO] [stdout] | [INFO] [stdout] 12 | struct Ticket { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Ticket` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling references_in_memory v0.1.0 (/opt/rustwide/workdir/exercises/03_ticket_v1/10_references_in_memory) [INFO] [stderr] Compiling sized v0.1.0 (/opt/rustwide/workdir/exercises/04_traits/08_sized) [INFO] [stderr] Compiling intro_03 v0.1.0 (/opt/rustwide/workdir/exercises/04_traits/00_intro) [INFO] [stderr] Compiling assoc_vs_generic v0.1.0 (/opt/rustwide/workdir/exercises/04_traits/10_assoc_vs_generic) [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)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling variables v0.1.0 (/opt/rustwide/workdir/exercises/02_basic_calculator/02_variables) [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)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling outro_03 v0.1.0 (/opt/rustwide/workdir/exercises/04_traits/14_outro) [INFO] [stderr] Compiling saturating v0.1.0 (/opt/rustwide/workdir/exercises/02_basic_calculator/09_saturating) [INFO] [stderr] Compiling intro_05 v0.1.0 (/opt/rustwide/workdir/exercises/06_ticket_management/00_intro) [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)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling pulldown-cmark-to-cmark v15.0.1 [INFO] [stderr] Compiling fallibility v0.1.0 (/opt/rustwide/workdir/exercises/05_ticket_v2/06_fallibility) [INFO] [stderr] Compiling interior_mutability v0.1.0 (/opt/rustwide/workdir/exercises/07_threads/06_interior_mutability) [INFO] [stderr] Compiling if_let v0.1.0 (/opt/rustwide/workdir/exercises/05_ticket_v2/04_if_let) [INFO] [stderr] Compiling outro_02 v0.1.0 (/opt/rustwide/workdir/exercises/03_ticket_v1/12_outro) [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: `Ticket` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` 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] = note: `Status` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [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: field `value` is never read [INFO] [stdout] --> exercises/07_threads/06_interior_mutability/src/lib.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 6 | pub struct DropTracker { [INFO] [stdout] | ----------- field in this struct [INFO] [stdout] 7 | value: T, [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling globset v0.4.14 [INFO] [stderr] Compiling opener v0.7.1 [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)]` 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 error_trait v0.1.0 (/opt/rustwide/workdir/exercises/05_ticket_v2/09_error_trait) [INFO] [stderr] Compiling unwrap v0.1.0 (/opt/rustwide/workdir/exercises/05_ticket_v2/07_unwrap) [INFO] [stderr] Compiling panics v0.1.0 (/opt/rustwide/workdir/exercises/02_basic_calculator/04_panics) [INFO] [stdout] warning: enum `TicketNewError` is never used [INFO] [stdout] --> exercises/05_ticket_v2/09_error_trait/src/lib.rs:5:6 [INFO] [stdout] | [INFO] [stdout] 5 | enum TicketNewError { [INFO] [stdout] | ^^^^^^^^^^^^^^ [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)]` 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:28:4 [INFO] [stdout] | [INFO] [stdout] 28 | 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:41:8 [INFO] [stdout] | [INFO] [stdout] 41 | struct Ticket { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Ticket` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `Status` is never used [INFO] [stdout] --> exercises/05_ticket_v2/09_error_trait/src/lib.rs:48:6 [INFO] [stdout] | [INFO] [stdout] 48 | enum Status { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Status` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis [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:55:12 [INFO] [stdout] | [INFO] [stdout] 54 | impl Ticket { [INFO] [stdout] | ----------- associated function in this implementation [INFO] [stdout] 55 | pub fn new( [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling encapsulation v0.1.0 (/opt/rustwide/workdir/exercises/03_ticket_v1/05_encapsulation) [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)]` 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:27:8 [INFO] [stdout] | [INFO] [stdout] 27 | struct Ticket { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Ticket` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `Status` is never used [INFO] [stdout] --> exercises/05_ticket_v2/07_unwrap/src/lib.rs:34:6 [INFO] [stdout] | [INFO] [stdout] 34 | enum Status { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Status` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `new` is never used [INFO] [stdout] --> exercises/05_ticket_v2/07_unwrap/src/lib.rs:41:12 [INFO] [stdout] | [INFO] [stdout] 40 | impl Ticket { [INFO] [stdout] | ----------- associated function in this implementation [INFO] [stdout] 41 | pub fn new(title: String, description: String, status: Status) -> Result { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling while_ v0.1.0 (/opt/rustwide/workdir/exercises/02_basic_calculator/06_while) [INFO] [stderr] Compiling if_else v0.1.0 (/opt/rustwide/workdir/exercises/02_basic_calculator/03_if_else) [INFO] [stderr] Compiling leaking v0.1.0 (/opt/rustwide/workdir/exercises/07_threads/03_leak) [INFO] [stderr] Compiling threads v0.1.0 (/opt/rustwide/workdir/exercises/07_threads/01_threads) [INFO] [stderr] Compiling overflow v0.1.0 (/opt/rustwide/workdir/exercises/02_basic_calculator/08_overflow) [INFO] [stderr] Compiling nullability v0.1.0 (/opt/rustwide/workdir/exercises/05_ticket_v2/05_nullability) [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: `Ticket` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` 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] = note: `Status` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [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 ignore v0.4.22 [INFO] [stderr] Compiling error_enums v0.1.0 (/opt/rustwide/workdir/exercises/05_ticket_v2/08_error_enums) [INFO] [stderr] Compiling arrays v0.1.0 (/opt/rustwide/workdir/exercises/06_ticket_management/01_arrays) [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: `TicketNewError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` 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:15:4 [INFO] [stdout] | [INFO] [stdout] 15 | 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:28:8 [INFO] [stdout] | [INFO] [stdout] 28 | struct Ticket { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Ticket` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `Status` is never used [INFO] [stdout] --> exercises/05_ticket_v2/08_error_enums/src/lib.rs:35:6 [INFO] [stdout] | [INFO] [stdout] 35 | enum Status { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Status` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis [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:42:12 [INFO] [stdout] | [INFO] [stdout] 41 | impl Ticket { [INFO] [stdout] | ----------- associated function in this implementation [INFO] [stdout] 42 | pub fn new( [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling drop v0.1.0 (/opt/rustwide/workdir/exercises/04_traits/13_drop) [INFO] [stderr] Compiling intro_01 v0.1.0 (/opt/rustwide/workdir/exercises/02_basic_calculator/00_intro) [INFO] [stderr] Compiling as_cast v0.1.0 (/opt/rustwide/workdir/exercises/02_basic_calculator/10_as_casting) [INFO] [stderr] Compiling deref v0.1.0 (/opt/rustwide/workdir/exercises/04_traits/07_deref) [INFO] [stderr] Compiling setters v0.1.0 (/opt/rustwide/workdir/exercises/03_ticket_v1/07_setters) [INFO] [stdout] warning: struct `DropBomb` is never constructed [INFO] [stdout] --> exercises/04_traits/13_drop/src/lib.rs:4:8 [INFO] [stdout] | [INFO] [stdout] 4 | struct DropBomb { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `new` and `defuse` are never used [INFO] [stdout] --> exercises/04_traits/13_drop/src/lib.rs:9:12 [INFO] [stdout] | [INFO] [stdout] 8 | impl DropBomb { [INFO] [stdout] | ------------- associated items in this implementation [INFO] [stdout] 9 | pub fn new() -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 13 | pub fn defuse(&mut self) { [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)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling modules v0.1.0 (/opt/rustwide/workdir/exercises/03_ticket_v1/03_modules) [INFO] [stderr] Compiling overloading v0.1.0 (/opt/rustwide/workdir/exercises/04_traits/03_operator_overloading) [INFO] [stderr] Compiling stack v0.1.0 (/opt/rustwide/workdir/exercises/03_ticket_v1/08_stack) [INFO] [stderr] Compiling trait_bounds v0.1.0 (/opt/rustwide/workdir/exercises/04_traits/05_trait_bounds) [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/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)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling ownership v0.1.0 (/opt/rustwide/workdir/exercises/03_ticket_v1/06_ownership) [INFO] [stderr] Compiling intro_08 v0.1.0 (/opt/rustwide/workdir/exercises/08_futures/00_intro) [INFO] [stderr] Compiling syntax v0.1.0 (/opt/rustwide/workdir/exercises/01_intro/01_syntax) [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)]` 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: `Ticket` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` 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] = note: `Status` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [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] [stderr] Compiling thiserror-impl v1.0.63 [INFO] [stderr] Compiling zerocopy-derive v0.7.35 [INFO] [stderr] Compiling tokio-macros v2.4.0 [INFO] [stderr] Compiling serde_derive v1.0.204 [INFO] [stderr] Compiling futures-macro v0.3.30 [INFO] [stderr] Compiling pin-project-internal v1.1.5 [INFO] [stderr] Compiling html5ever v0.27.0 [INFO] [stderr] Compiling clap_derive v4.5.13 [INFO] [stderr] Compiling tokio v1.39.2 [INFO] [stderr] Compiling futures-util v0.3.30 [INFO] [stderr] Compiling pin-project v1.1.5 [INFO] [stderr] Compiling zerocopy v0.7.35 [INFO] [stderr] Compiling pest v2.7.11 [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 thiserror_ v0.1.0 (/opt/rustwide/workdir/exercises/05_ticket_v2/12_thiserror) [INFO] [stderr] Compiling iter v0.1.0 (/opt/rustwide/workdir/exercises/06_ticket_management/05_iter) [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] [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] = note: `Ticket` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [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] = note: `Status` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis [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 impl_trait_2 v0.1.0 (/opt/rustwide/workdir/exercises/06_ticket_management/09_impl_trait_2) [INFO] [stderr] Compiling client v0.1.0 (/opt/rustwide/workdir/exercises/07_threads/08_client) [INFO] [stderr] Compiling channels v0.1.0 (/opt/rustwide/workdir/exercises/07_threads/05_channels) [INFO] [stderr] Compiling without_channels v0.1.0 (/opt/rustwide/workdir/exercises/07_threads/13_without_channels) [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be 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 lifetime gets resolved as `'_` [INFO] [stdout] | | [INFO] [stdout] | this lifetime flows to the output [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stdout] | [INFO] [stdout] 38 | pub fn iter(&self) -> std::slice::Iter<'_, Ticket> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling btreemap v0.1.0 (/opt/rustwide/workdir/exercises/06_ticket_management/16_btreemap) [INFO] [stderr] Compiling patch v0.1.0 (/opt/rustwide/workdir/exercises/07_threads/10_patch) [INFO] [stderr] Compiling lifetime v0.1.0 (/opt/rustwide/workdir/exercises/06_ticket_management/06_lifetimes) [INFO] [stderr] Compiling rwlock v0.1.0 (/opt/rustwide/workdir/exercises/07_threads/12_rw_lock) [INFO] [stderr] Compiling hashmap v0.1.0 (/opt/rustwide/workdir/exercises/06_ticket_management/15_hashmap) [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)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> exercises/06_ticket_management/06_lifetimes/src/lib.rs:33:17 [INFO] [stdout] | [INFO] [stdout] 33 | pub fn iter(&self) -> std::slice::Iter { [INFO] [stdout] | ^^^^^ ------------------------ the lifetime gets resolved as `'_` [INFO] [stdout] | | [INFO] [stdout] | this lifetime flows to the output [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stdout] | [INFO] [stdout] 33 | pub fn iter(&self) -> std::slice::Iter<'_, Ticket> { [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:76:1 [INFO] [stdout] | [INFO] [stdout] 76 | 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:61:1 [INFO] [stdout] | [INFO] [stdout] 61 | enum Command { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] = note: `#[warn(private_interfaces)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling response v0.1.0 (/opt/rustwide/workdir/exercises/07_threads/07_ack) [INFO] [stderr] Compiling locks v0.1.0 (/opt/rustwide/workdir/exercises/07_threads/11_locks) [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)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling combinators v0.1.0 (/opt/rustwide/workdir/exercises/06_ticket_management/07_combinators) [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 index_mut v0.1.0 (/opt/rustwide/workdir/exercises/06_ticket_management/14_index_mut) [INFO] [stderr] Compiling ppv-lite86 v0.2.20 [INFO] [stderr] Compiling clap v4.5.13 [INFO] [stderr] Compiling clap_complete v4.5.12 [INFO] [stderr] Compiling index v0.1.0 (/opt/rustwide/workdir/exercises/06_ticket_management/13_index) [INFO] [stderr] Compiling two_states v0.1.0 (/opt/rustwide/workdir/exercises/06_ticket_management/12_two_states) [INFO] [stderr] Compiling bounded v0.1.0 (/opt/rustwide/workdir/exercises/07_threads/09_bounded) [INFO] [stdout] warning: unused variable: `capacity` [INFO] [stdout] --> exercises/07_threads/09_bounded/src/lib.rs:35:15 [INFO] [stdout] | [INFO] [stdout] 35 | pub fn launch(capacity: usize) -> TicketStoreClient { [INFO] [stdout] | ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_capacity` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [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:52:1 [INFO] [stdout] | [INFO] [stdout] 52 | 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:41:1 [INFO] [stdout] | [INFO] [stdout] 41 | enum Command { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] = note: `#[warn(private_interfaces)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling rand_chacha v0.3.1 [INFO] [stderr] Compiling pest_meta v2.7.11 [INFO] [stderr] Compiling rand v0.8.5 [INFO] [stderr] Compiling pest_generator v2.7.11 [INFO] [stderr] Compiling tungstenite v0.21.0 [INFO] [stderr] Compiling phf_generator v0.11.2 [INFO] [stderr] Compiling phf_generator v0.10.0 [INFO] [stderr] Compiling phf_codegen v0.11.2 [INFO] [stderr] Compiling string_cache_codegen v0.5.2 [INFO] [stderr] Compiling pest_derive v2.7.11 [INFO] [stderr] Compiling markup5ever v0.12.1 [INFO] [stderr] Compiling tokio-util v0.7.11 [INFO] [stderr] Compiling tokio-tungstenite v0.21.0 [INFO] [stderr] Compiling tokio-util v0.6.10 [INFO] [stderr] Compiling async_fn v0.1.0 (/opt/rustwide/workdir/exercises/08_futures/01_async_fn) [INFO] [stderr] Compiling runtime v0.1.0 (/opt/rustwide/workdir/exercises/08_futures/03_runtime) [INFO] [stderr] Compiling async_locks v0.1.0 (/opt/rustwide/workdir/exercises/08_futures/06_async_aware_primitives) [INFO] [stderr] Compiling future v0.1.0 (/opt/rustwide/workdir/exercises/08_futures/04_future) [INFO] [stderr] Compiling cancellation v0.1.0 (/opt/rustwide/workdir/exercises/08_futures/07_cancellation) [INFO] [stderr] Compiling blocking v0.1.0 (/opt/rustwide/workdir/exercises/08_futures/05_blocking) [INFO] [stderr] Compiling spawn v0.1.0 (/opt/rustwide/workdir/exercises/08_futures/02_spawn) [INFO] [stdout] warning: unused imports: `AsyncReadExt` and `AsyncWriteExt` [INFO] [stdout] --> exercises/08_futures/01_async_fn/src/lib.rs:11:17 [INFO] [stdout] | [INFO] [stdout] 11 | use tokio::io::{AsyncReadExt, AsyncWriteExt}; [INFO] [stdout] | ^^^^^^^^^^^^ ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `AsyncReadExt` and `AsyncWriteExt` [INFO] [stdout] --> exercises/08_futures/02_spawn/src/lib.rs:5:17 [INFO] [stdout] | [INFO] [stdout] 5 | use tokio::io::{AsyncReadExt, AsyncWriteExt}; [INFO] [stdout] | ^^^^^^^^^^^^ ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` 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:4:4 [INFO] [stdout] | [INFO] [stdout] 4 | fn spawner() { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` 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:8:10 [INFO] [stdout] | [INFO] [stdout] 8 | async fn example() { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> exercises/08_futures/06_async_aware_primitives/src/lib.rs:14:26 [INFO] [stdout] | [INFO] [stdout] 14 | let (sender, mut new_receiver) = mpsc::channel(1); [INFO] [stdout] | ----^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> exercises/08_futures/02_spawn/src/lib.rs:9:9 [INFO] [stdout] | [INFO] [stdout] 9 | let mut listener1 = tokio::spawn(accept_connections(first)); [INFO] [stdout] | ----^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> exercises/08_futures/02_spawn/src/lib.rs:10:9 [INFO] [stdout] | [INFO] [stdout] 10 | let mut listener2 = tokio::spawn(accept_connections(second)); [INFO] [stdout] | ----^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling h2 v0.3.26 [INFO] [stderr] Compiling string_cache v0.8.7 [INFO] [stderr] Compiling serde_urlencoded v0.7.1 [INFO] [stderr] Compiling toml v0.5.11 [INFO] [stderr] Compiling bimap v0.6.3 [INFO] [stderr] Compiling handlebars v5.1.2 [INFO] [stderr] Compiling elasticlunr-rs v3.0.2 [INFO] [stderr] Compiling ammonia v4.0.0 [INFO] [stderr] Compiling hyper v0.14.30 [INFO] [stderr] Compiling warp v0.3.7 [INFO] [stderr] Compiling mdbook v0.4.40 [INFO] [stderr] Compiling outro_08 v0.1.0 (/opt/rustwide/workdir/exercises/08_futures/08_outro) [INFO] [stdout] warning: type alias `TicketStore` is never used [INFO] [stdout] --> exercises/08_futures/08_outro/src/lib.rs:15:6 [INFO] [stdout] | [INFO] [stdout] 15 | type TicketStore = Arc>>; [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `main` is never used [INFO] [stdout] --> exercises/08_futures/08_outro/src/lib.rs:18:10 [INFO] [stdout] | [INFO] [stdout] 18 | async fn main() { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `with_ticket_store` is never used [INFO] [stdout] --> exercises/08_futures/08_outro/src/lib.rs:45:4 [INFO] [stdout] | [INFO] [stdout] 45 | fn with_ticket_store(ticket_store: TicketStore) -> impl Filter + Clone { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `create_ticket` is never used [INFO] [stdout] --> exercises/08_futures/08_outro/src/lib.rs:49:10 [INFO] [stdout] | [INFO] [stdout] 49 | async fn create_ticket(ticket: Ticket, store: TicketStore) -> Result { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `get_ticket` is never used [INFO] [stdout] --> exercises/08_futures/08_outro/src/lib.rs:64:10 [INFO] [stdout] | [INFO] [stdout] 64 | async fn get_ticket(id: String, store: TicketStore) -> Result { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `patch_ticket` is never used [INFO] [stdout] --> exercises/08_futures/08_outro/src/lib.rs:73:10 [INFO] [stdout] | [INFO] [stdout] 73 | async fn patch_ticket(id: String, patch: Ticket, store: TicketStore) -> Result { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling mdbook-exercise-linker v0.1.0 (/opt/rustwide/workdir/helpers/mdbook-exercise-linker) [INFO] [stderr] Compiling mdbook-link-shortener v0.1.0 (/opt/rustwide/workdir/helpers/mdbook-link-shortener) [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 55.55s [INFO] running `Command { std: "docker" "inspect" "53b58197830fd9f13012b7d10b5f0ec67b8a204d32b389373ca537231580098c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "53b58197830fd9f13012b7d10b5f0ec67b8a204d32b389373ca537231580098c", kill_on_drop: false }` [INFO] [stdout] 53b58197830fd9f13012b7d10b5f0ec67b8a204d32b389373ca537231580098c [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "test" "--frozen" "--no-run" "--message-format=json" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }` [INFO] [stdout] 7cde3d35d0f6286985e557f87d391e6e509597d66d5cf9d0728fa0d4c9e13ab6 [INFO] running `Command { std: "docker" "start" "-a" "7cde3d35d0f6286985e557f87d391e6e509597d66d5cf9d0728fa0d4c9e13ab6", kill_on_drop: false }` [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)]` 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] [stdout] warning: unused variable: `capacity` [INFO] [stdout] --> exercises/07_threads/09_bounded/src/lib.rs:35:15 [INFO] [stdout] | [INFO] [stdout] 35 | pub fn launch(capacity: usize) -> TicketStoreClient { [INFO] [stdout] | ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_capacity` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [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:52:1 [INFO] [stdout] | [INFO] [stdout] 52 | 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:41:1 [INFO] [stdout] | [INFO] [stdout] 41 | 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:76:1 [INFO] [stdout] | [INFO] [stdout] 76 | 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:61:1 [INFO] [stdout] | [INFO] [stdout] 61 | 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: 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)]` 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: type alias `TicketStore` is never used [INFO] [stdout] --> exercises/08_futures/08_outro/src/lib.rs:15:6 [INFO] [stdout] | [INFO] [stdout] 15 | type TicketStore = Arc>>; [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `main` is never used [INFO] [stdout] --> exercises/08_futures/08_outro/src/lib.rs:18:10 [INFO] [stdout] | [INFO] [stdout] 18 | async fn main() { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `with_ticket_store` is never used [INFO] [stdout] --> exercises/08_futures/08_outro/src/lib.rs:45:4 [INFO] [stdout] | [INFO] [stdout] 45 | fn with_ticket_store(ticket_store: TicketStore) -> impl Filter + Clone { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `create_ticket` is never used [INFO] [stdout] --> exercises/08_futures/08_outro/src/lib.rs:49:10 [INFO] [stdout] | [INFO] [stdout] 49 | async fn create_ticket(ticket: Ticket, store: TicketStore) -> Result { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `get_ticket` is never used [INFO] [stdout] --> exercises/08_futures/08_outro/src/lib.rs:64:10 [INFO] [stdout] | [INFO] [stdout] 64 | async fn get_ticket(id: String, store: TicketStore) -> Result { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `patch_ticket` is never used [INFO] [stdout] --> exercises/08_futures/08_outro/src/lib.rs:73:10 [INFO] [stdout] | [INFO] [stdout] 73 | async fn patch_ticket(id: String, patch: Ticket, store: TicketStore) -> Result { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be 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 lifetime gets resolved as `'_` [INFO] [stdout] | | [INFO] [stdout] | this lifetime flows to the output [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stdout] | [INFO] [stdout] 38 | pub fn iter(&self) -> std::slice::Iter<'_, Ticket> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> exercises/06_ticket_management/06_lifetimes/src/lib.rs:33:17 [INFO] [stdout] | [INFO] [stdout] 33 | pub fn iter(&self) -> std::slice::Iter { [INFO] [stdout] | ^^^^^ ------------------------ the lifetime gets resolved as `'_` [INFO] [stdout] | | [INFO] [stdout] | this lifetime flows to the output [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stdout] | [INFO] [stdout] 33 | pub fn iter(&self) -> std::slice::Iter<'_, Ticket> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `AsyncReadExt` and `AsyncWriteExt` [INFO] [stdout] --> exercises/08_futures/01_async_fn/src/lib.rs:11:17 [INFO] [stdout] | [INFO] [stdout] 11 | use tokio::io::{AsyncReadExt, AsyncWriteExt}; [INFO] [stdout] | ^^^^^^^^^^^^ ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `AsyncReadExt` and `AsyncWriteExt` [INFO] [stdout] --> exercises/08_futures/02_spawn/src/lib.rs:5:17 [INFO] [stdout] | [INFO] [stdout] 5 | use tokio::io::{AsyncReadExt, AsyncWriteExt}; [INFO] [stdout] | ^^^^^^^^^^^^ ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> exercises/08_futures/02_spawn/src/lib.rs:9:9 [INFO] [stdout] | [INFO] [stdout] 9 | let mut listener1 = tokio::spawn(accept_connections(first)); [INFO] [stdout] | ----^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> exercises/08_futures/02_spawn/src/lib.rs:10:9 [INFO] [stdout] | [INFO] [stdout] 10 | let mut listener2 = tokio::spawn(accept_connections(second)); [INFO] [stdout] | ----^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [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] = note: `Ticket` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [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] = note: `Status` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis [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: variable does not need to be mutable [INFO] [stdout] --> exercises/08_futures/06_async_aware_primitives/src/lib.rs:14:26 [INFO] [stdout] | [INFO] [stdout] 14 | let (sender, mut new_receiver) = mpsc::channel(1); [INFO] [stdout] | ----^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `spawner` is never used [INFO] [stdout] --> exercises/08_futures/04_future/src/lib.rs:4:4 [INFO] [stdout] | [INFO] [stdout] 4 | fn spawner() { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` 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:8:10 [INFO] [stdout] | [INFO] [stdout] 8 | async fn example() { [INFO] [stdout] | ^^^^^^^ [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)]` 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)]` on by default [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)]` 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)]` on by default [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)]` 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: `Ticket` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` 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] = note: `Status` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [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: 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: `TicketNewError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` 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:15:4 [INFO] [stdout] | [INFO] [stdout] 15 | 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:28:8 [INFO] [stdout] | [INFO] [stdout] 28 | struct Ticket { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Ticket` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `Status` is never used [INFO] [stdout] --> exercises/05_ticket_v2/08_error_enums/src/lib.rs:35:6 [INFO] [stdout] | [INFO] [stdout] 35 | enum Status { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Status` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis [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:42:12 [INFO] [stdout] | [INFO] [stdout] 41 | impl Ticket { [INFO] [stdout] | ----------- associated function in this implementation [INFO] [stdout] 42 | pub fn new( [INFO] [stdout] | ^^^ [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)]` 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 `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)]` 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:3:4 [INFO] [stdout] | [INFO] [stdout] 3 | fn squared(slice: &mut [i32]) { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::fmt` [INFO] [stdout] --> exercises/05_ticket_v2/15_outro/src/description.rs:6:5 [INFO] [stdout] | [INFO] [stdout] 6 | use std::fmt; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::fmt` [INFO] [stdout] --> exercises/05_ticket_v2/15_outro/src/status.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | use std::fmt; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::fmt` [INFO] [stdout] --> exercises/05_ticket_v2/15_outro/src/title.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 5 | use std::fmt; [INFO] [stdout] | ^^^^^^^^ [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)]` on by default [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)]` 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: 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)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait `IsEven` is never used [INFO] [stdout] --> exercises/04_traits/01_trait/src/lib.rs:5:7 [INFO] [stdout] | [INFO] [stdout] 5 | trait IsEven { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` 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:3:4 [INFO] [stdout] | [INFO] [stdout] 3 | fn sum(slice: &[u32]) -> u32 { [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Ticket` is never constructed [INFO] [stdout] --> exercises/04_traits/04_derive/src/lib.rs:12:8 [INFO] [stdout] | [INFO] [stdout] 12 | struct Ticket { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Ticket` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` 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:2:6 [INFO] [stdout] | [INFO] [stdout] 2 | enum Status { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Status` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Ticket` is never constructed [INFO] [stdout] --> exercises/05_ticket_v2/01_enum/src/lib.rs:9:8 [INFO] [stdout] | [INFO] [stdout] 9 | struct Ticket { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Ticket` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [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:16:12 [INFO] [stdout] | [INFO] [stdout] 15 | impl Ticket { [INFO] [stdout] | ----------- associated items in this implementation [INFO] [stdout] 16 | pub fn new(title: String, description: String, status: Status) -> Ticket { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 37 | pub fn title(&self) -> &String { [INFO] [stdout] | ^^^^^ [INFO] [stdout] ... [INFO] [stdout] 41 | pub fn description(&self) -> &String { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 45 | pub fn status(&self) -> &Status { [INFO] [stdout] | ^^^^^^ [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: `Ticket` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` 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] = note: `Status` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [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 `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)]` 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:27:8 [INFO] [stdout] | [INFO] [stdout] 27 | struct Ticket { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Ticket` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `Status` is never used [INFO] [stdout] --> exercises/05_ticket_v2/07_unwrap/src/lib.rs:34:6 [INFO] [stdout] | [INFO] [stdout] 34 | enum Status { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Status` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `new` is never used [INFO] [stdout] --> exercises/05_ticket_v2/07_unwrap/src/lib.rs:41:12 [INFO] [stdout] | [INFO] [stdout] 40 | impl Ticket { [INFO] [stdout] | ----------- associated function in this implementation [INFO] [stdout] 41 | pub fn new(title: String, description: String, status: Status) -> Result { [INFO] [stdout] | ^^^ [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)]` on by default [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)]` 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)]` 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)]` 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)]` 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: field `value` is never read [INFO] [stdout] --> exercises/07_threads/06_interior_mutability/src/lib.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 6 | pub struct DropTracker { [INFO] [stdout] | ----------- field in this struct [INFO] [stdout] 7 | value: T, [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` 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: `Ticket` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` 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] = note: `Status` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [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: 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)]` 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:10:12 [INFO] [stdout] | [INFO] [stdout] 9 | impl Shape { [INFO] [stdout] | ---------- method in this implementation [INFO] [stdout] 10 | pub fn n_sides(&self) -> u8 { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `DropBomb` is never constructed [INFO] [stdout] --> exercises/04_traits/13_drop/src/lib.rs:4:8 [INFO] [stdout] | [INFO] [stdout] 4 | struct DropBomb { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `new` and `defuse` are never used [INFO] [stdout] --> exercises/04_traits/13_drop/src/lib.rs:9:12 [INFO] [stdout] | [INFO] [stdout] 8 | impl DropBomb { [INFO] [stdout] | ------------- associated items in this implementation [INFO] [stdout] 9 | pub fn new() -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 13 | pub fn defuse(&mut self) { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `TicketNewError` is never used [INFO] [stdout] --> exercises/05_ticket_v2/09_error_trait/src/lib.rs:5:6 [INFO] [stdout] | [INFO] [stdout] 5 | enum TicketNewError { [INFO] [stdout] | ^^^^^^^^^^^^^^ [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)]` 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:28:4 [INFO] [stdout] | [INFO] [stdout] 28 | 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:41:8 [INFO] [stdout] | [INFO] [stdout] 41 | struct Ticket { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Ticket` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `Status` is never used [INFO] [stdout] --> exercises/05_ticket_v2/09_error_trait/src/lib.rs:48:6 [INFO] [stdout] | [INFO] [stdout] 48 | enum Status { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Status` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling mdbook-link-shortener v0.1.0 (/opt/rustwide/workdir/helpers/mdbook-link-shortener) [INFO] [stdout] warning: associated function `new` is never used [INFO] [stdout] --> exercises/05_ticket_v2/09_error_trait/src/lib.rs:55:12 [INFO] [stdout] | [INFO] [stdout] 54 | impl Ticket { [INFO] [stdout] | ----------- associated function in this implementation [INFO] [stdout] 55 | pub fn new( [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [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] [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)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling patch v0.1.0 (/opt/rustwide/workdir/exercises/07_threads/10_patch) [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 locks v0.1.0 (/opt/rustwide/workdir/exercises/07_threads/11_locks) [INFO] [stderr] Compiling error_trait v0.1.0 (/opt/rustwide/workdir/exercises/05_ticket_v2/09_error_trait) [INFO] [stderr] Compiling outro_02 v0.1.0 (/opt/rustwide/workdir/exercises/03_ticket_v1/12_outro) [INFO] [stderr] Compiling channels v0.1.0 (/opt/rustwide/workdir/exercises/07_threads/05_channels) [INFO] [stderr] Compiling bounded v0.1.0 (/opt/rustwide/workdir/exercises/07_threads/09_bounded) [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 outro_08 v0.1.0 (/opt/rustwide/workdir/exercises/08_futures/08_outro) [INFO] [stdout] warning: variants `InProgress` and `Done` are never constructed [INFO] [stdout] --> exercises/05_ticket_v2/09_error_trait/src/lib.rs:50:5 [INFO] [stdout] | [INFO] [stdout] 48 | enum Status { [INFO] [stdout] | ------ variants in this enum [INFO] [stdout] 49 | ToDo, [INFO] [stdout] 50 | InProgress { assigned_to: String }, [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] 51 | Done, [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Status` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling response v0.1.0 (/opt/rustwide/workdir/exercises/07_threads/07_ack) [INFO] [stderr] Compiling two_states v0.1.0 (/opt/rustwide/workdir/exercises/06_ticket_management/12_two_states) [INFO] [stdout] warning: unused variable: `ticket2` [INFO] [stdout] --> exercises/06_ticket_management/12_two_states/src/lib.rs:90:13 [INFO] [stdout] | [INFO] [stdout] 90 | 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)]` 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: type `Command` is more private than the item `server` [INFO] [stdout] --> exercises/07_threads/10_patch/src/lib.rs:76:1 [INFO] [stdout] | [INFO] [stdout] 76 | 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:61:1 [INFO] [stdout] | [INFO] [stdout] 61 | 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)]` 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] [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 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 index v0.1.0 (/opt/rustwide/workdir/exercises/06_ticket_management/13_index) [INFO] [stderr] Compiling hashmap v0.1.0 (/opt/rustwide/workdir/exercises/06_ticket_management/15_hashmap) [INFO] [stderr] Compiling index_mut v0.1.0 (/opt/rustwide/workdir/exercises/06_ticket_management/14_index_mut) [INFO] [stdout] warning: unused variable: `i` [INFO] [stdout] --> exercises/06_ticket_management/16_btreemap/src/lib.rs:114:13 [INFO] [stdout] | [INFO] [stdout] 114 | 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)]` 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)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling lifetime v0.1.0 (/opt/rustwide/workdir/exercises/06_ticket_management/06_lifetimes) [INFO] [stderr] Compiling iterators v0.1.0 (/opt/rustwide/workdir/exercises/06_ticket_management/04_iterators) [INFO] [stderr] Compiling iter v0.1.0 (/opt/rustwide/workdir/exercises/06_ticket_management/05_iter) [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> exercises/06_ticket_management/06_lifetimes/src/lib.rs:33:17 [INFO] [stdout] | [INFO] [stdout] 33 | pub fn iter(&self) -> std::slice::Iter { [INFO] [stdout] | ^^^^^ ------------------------ the lifetime gets resolved as `'_` [INFO] [stdout] | | [INFO] [stdout] | this lifetime flows to the output [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stdout] | [INFO] [stdout] 33 | pub fn iter(&self) -> std::slice::Iter<'_, Ticket> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be 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 lifetime gets resolved as `'_` [INFO] [stdout] | | [INFO] [stdout] | this lifetime flows to the output [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stdout] | [INFO] [stdout] 38 | pub fn iter(&self) -> std::slice::Iter<'_, Ticket> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling future v0.1.0 (/opt/rustwide/workdir/exercises/08_futures/04_future) [INFO] [stderr] Compiling cancellation v0.1.0 (/opt/rustwide/workdir/exercises/08_futures/07_cancellation) [INFO] [stderr] Compiling spawn v0.1.0 (/opt/rustwide/workdir/exercises/08_futures/02_spawn) [INFO] [stdout] warning: function `spawner` is never used [INFO] [stdout] --> exercises/08_futures/04_future/src/lib.rs:4:4 [INFO] [stdout] | [INFO] [stdout] 4 | fn spawner() { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` 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:8:10 [INFO] [stdout] | [INFO] [stdout] 8 | async fn example() { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `capacity` [INFO] [stdout] --> exercises/07_threads/09_bounded/src/lib.rs:35:15 [INFO] [stdout] | [INFO] [stdout] 35 | pub fn launch(capacity: usize) -> TicketStoreClient { [INFO] [stdout] | ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_capacity` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [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:52:1 [INFO] [stdout] | [INFO] [stdout] 52 | 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:41:1 [INFO] [stdout] | [INFO] [stdout] 41 | enum Command { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] = note: `#[warn(private_interfaces)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling async_fn v0.1.0 (/opt/rustwide/workdir/exercises/08_futures/01_async_fn) [INFO] [stderr] Compiling async_locks v0.1.0 (/opt/rustwide/workdir/exercises/08_futures/06_async_aware_primitives) [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)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `AsyncReadExt` and `AsyncWriteExt` [INFO] [stdout] --> exercises/08_futures/02_spawn/src/lib.rs:5:17 [INFO] [stdout] | [INFO] [stdout] 5 | use tokio::io::{AsyncReadExt, AsyncWriteExt}; [INFO] [stdout] | ^^^^^^^^^^^^ ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling runtime v0.1.0 (/opt/rustwide/workdir/exercises/08_futures/03_runtime) [INFO] [stdout] warning: unused imports: `AsyncReadExt` and `AsyncWriteExt` [INFO] [stdout] --> exercises/08_futures/01_async_fn/src/lib.rs:11:17 [INFO] [stdout] | [INFO] [stdout] 11 | use tokio::io::{AsyncReadExt, AsyncWriteExt}; [INFO] [stdout] | ^^^^^^^^^^^^ ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> exercises/08_futures/02_spawn/src/lib.rs:9:9 [INFO] [stdout] | [INFO] [stdout] 9 | let mut listener1 = tokio::spawn(accept_connections(first)); [INFO] [stdout] | ----^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> exercises/08_futures/02_spawn/src/lib.rs:10:9 [INFO] [stdout] | [INFO] [stdout] 10 | let mut listener2 = tokio::spawn(accept_connections(second)); [INFO] [stdout] | ----^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling blocking v0.1.0 (/opt/rustwide/workdir/exercises/08_futures/05_blocking) [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 thiserror_ v0.1.0 (/opt/rustwide/workdir/exercises/05_ticket_v2/12_thiserror) [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> exercises/08_futures/06_async_aware_primitives/src/lib.rs:14:26 [INFO] [stdout] | [INFO] [stdout] 14 | let (sender, mut new_receiver) = mpsc::channel(1); [INFO] [stdout] | ----^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `buffered` [INFO] [stdout] --> exercises/08_futures/07_cancellation/src/lib.rs:46:13 [INFO] [stdout] | [INFO] [stdout] 46 | let buffered = std::str::from_utf8(&buffered).unwrap(); [INFO] [stdout] | ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_buffered` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> exercises/08_futures/06_async_aware_primitives/src/lib.rs:34:22 [INFO] [stdout] | [INFO] [stdout] 34 | let (sender, mut receiver) = mpsc::channel(1); [INFO] [stdout] | ----^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> exercises/08_futures/06_async_aware_primitives/src/lib.rs:35:14 [INFO] [stdout] | [INFO] [stdout] 35 | let (mut response_sender, mut response_receiver) = mpsc::channel(1); [INFO] [stdout] | ----^^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling source v0.1.0 (/opt/rustwide/workdir/exercises/05_ticket_v2/14_source) [INFO] [stderr] Compiling ticket_fields v0.1.0 (/opt/rustwide/workdir/helpers/ticket_fields) [INFO] [stderr] Compiling deps v0.1.0 (/opt/rustwide/workdir/exercises/05_ticket_v2/11_dependencies) [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 `Debug` and `Clone`, but these are intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling validation v0.1.0 (/opt/rustwide/workdir/exercises/03_ticket_v1/02_validation) [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)]` 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 setters v0.1.0 (/opt/rustwide/workdir/exercises/03_ticket_v1/07_setters) [INFO] [stderr] Compiling variants_with_data v0.1.0 (/opt/rustwide/workdir/exercises/05_ticket_v2/03_variants_with_data) [INFO] [stdout] warning: associated items `new`, `title`, `description`, and `status` are never used [INFO] [stdout] --> exercises/05_ticket_v2/01_enum/src/lib.rs:16:12 [INFO] [stdout] | [INFO] [stdout] 15 | impl Ticket { [INFO] [stdout] | ----------- associated items in this implementation [INFO] [stdout] 16 | pub fn new(title: String, description: String, status: Status) -> Ticket { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 37 | pub fn title(&self) -> &String { [INFO] [stdout] | ^^^^^ [INFO] [stdout] ... [INFO] [stdout] 41 | pub fn description(&self) -> &String { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 45 | pub fn status(&self) -> &Status { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` 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 unwrap v0.1.0 (/opt/rustwide/workdir/exercises/05_ticket_v2/07_unwrap) [INFO] [stdout] warning: variants `InProgress` and `Done` are never constructed [INFO] [stdout] --> exercises/05_ticket_v2/07_unwrap/src/lib.rs:36:5 [INFO] [stdout] | [INFO] [stdout] 34 | enum Status { [INFO] [stdout] | ------ variants in this enum [INFO] [stdout] 35 | ToDo, [INFO] [stdout] 36 | InProgress { assigned_to: String }, [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] 37 | Done, [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Status` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `new` is never used [INFO] [stdout] --> exercises/05_ticket_v2/07_unwrap/src/lib.rs:41:12 [INFO] [stdout] | [INFO] [stdout] 40 | impl Ticket { [INFO] [stdout] | ----------- associated function in this implementation [INFO] [stdout] 41 | pub fn new(title: String, description: String, status: Status) -> Result { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling nullability v0.1.0 (/opt/rustwide/workdir/exercises/05_ticket_v2/05_nullability) [INFO] [stderr] Compiling fallibility v0.1.0 (/opt/rustwide/workdir/exercises/05_ticket_v2/06_fallibility) [INFO] [stderr] Compiling error_enums v0.1.0 (/opt/rustwide/workdir/exercises/05_ticket_v2/08_error_enums) [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)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling copy v0.1.0 (/opt/rustwide/workdir/exercises/04_traits/12_copy) [INFO] [stderr] Compiling from v0.1.0 (/opt/rustwide/workdir/exercises/04_traits/09_from) [INFO] [stdout] warning: variants `InProgress` and `Done` are never constructed [INFO] [stdout] --> exercises/05_ticket_v2/08_error_enums/src/lib.rs:37:5 [INFO] [stdout] | [INFO] [stdout] 35 | enum Status { [INFO] [stdout] | ------ variants in this enum [INFO] [stdout] 36 | ToDo, [INFO] [stdout] 37 | InProgress { assigned_to: String }, [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] 38 | Done, [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Status` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling overflow v0.1.0 (/opt/rustwide/workdir/exercises/02_basic_calculator/08_overflow) [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)]` 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)]` 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 intro_01 v0.1.0 (/opt/rustwide/workdir/exercises/02_basic_calculator/00_intro) [INFO] [stderr] Compiling resizing v0.1.0 (/opt/rustwide/workdir/exercises/06_ticket_management/03_resizing) [INFO] [stderr] Compiling intro_04 v0.1.0 (/opt/rustwide/workdir/exercises/05_ticket_v2/00_intro) [INFO] [stderr] Compiling vec v0.1.0 (/opt/rustwide/workdir/exercises/06_ticket_management/02_vec) [INFO] [stderr] Compiling leaking v0.1.0 (/opt/rustwide/workdir/exercises/07_threads/03_leak) [INFO] [stderr] Compiling static v0.1.0 (/opt/rustwide/workdir/exercises/07_threads/02_static) [INFO] [stderr] Compiling intro_07 v0.1.0 (/opt/rustwide/workdir/exercises/07_threads/00_intro) [INFO] [stderr] Compiling intro_05 v0.1.0 (/opt/rustwide/workdir/exercises/06_ticket_management/00_intro) [INFO] [stderr] Compiling common v0.1.0 (/opt/rustwide/workdir/helpers/common) [INFO] [stderr] Compiling factorial v0.1.0 (/opt/rustwide/workdir/exercises/02_basic_calculator/05_factorial) [INFO] [stderr] Compiling integers v0.1.0 (/opt/rustwide/workdir/exercises/02_basic_calculator/01_integers) [INFO] [stderr] Compiling saturating v0.1.0 (/opt/rustwide/workdir/exercises/02_basic_calculator/09_saturating) [INFO] [stderr] Compiling if_else v0.1.0 (/opt/rustwide/workdir/exercises/02_basic_calculator/03_if_else) [INFO] [stderr] error: could not compile `spawn` (lib test); 3 warnings emitted [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/8de4c7234dd9b97c9d76b58671343fdbbc9a433e/bin/rustc --crate-name spawn --edition=2021 exercises/08_futures/02_spawn/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --emit=dep-info,link -C embed-bitcode=no -C debuginfo=2 -C overflow-checks=off --test --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values())' -C metadata=8d6488a9d5483bee -C extra-filename=-70c1e2232b594e9a --out-dir /opt/rustwide/target/x86_64-unknown-linux-musl/debug/deps --target x86_64-unknown-linux-musl -L dependency=/opt/rustwide/target/x86_64-unknown-linux-musl/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern anyhow=/opt/rustwide/target/x86_64-unknown-linux-musl/debug/deps/libanyhow-cfed0a8393696c6d.rlib --extern tokio=/opt/rustwide/target/x86_64-unknown-linux-musl/debug/deps/libtokio-86b996411a36f80d.rlib --cap-lints=forbid` (signal: 9, SIGKILL: kill) [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] running `Command { std: "docker" "inspect" "7cde3d35d0f6286985e557f87d391e6e509597d66d5cf9d0728fa0d4c9e13ab6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7cde3d35d0f6286985e557f87d391e6e509597d66d5cf9d0728fa0d4c9e13ab6", kill_on_drop: false }` [INFO] [stdout] 7cde3d35d0f6286985e557f87d391e6e509597d66d5cf9d0728fa0d4c9e13ab6