[INFO] cloning repository https://github.com/GeoffreyWN/mainmatter-100-rust-exercises [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/GeoffreyWN/mainmatter-100-rust-exercises" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGeoffreyWN%2Fmainmatter-100-rust-exercises", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGeoffreyWN%2Fmainmatter-100-rust-exercises'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] f002bb5513a506ec823bc3f587b8e5255df3dd7d [INFO] checking GeoffreyWN/mainmatter-100-rust-exercises against try#93086cfebfccb79083c59d0d3b2052944bba643c for pr-146440-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGeoffreyWN%2Fmainmatter-100-rust-exercises" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/GeoffreyWN/mainmatter-100-rust-exercises [INFO] finished tweaking git repo https://github.com/GeoffreyWN/mainmatter-100-rust-exercises [INFO] tweaked toml for git repo https://github.com/GeoffreyWN/mainmatter-100-rust-exercises written to /workspace/builds/worker-5-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/GeoffreyWN/mainmatter-100-rust-exercises on toolchain 93086cfebfccb79083c59d0d3b2052944bba643c [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+93086cfebfccb79083c59d0d3b2052944bba643c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/GeoffreyWN/mainmatter-100-rust-exercises 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" "+93086cfebfccb79083c59d0d3b2052944bba643c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+93086cfebfccb79083c59d0d3b2052944bba643c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] ebb86f543596bf5a9d7654f52879f90f0a192e8d9d00364452087312a83108ff [INFO] running `Command { std: "docker" "start" "-a" "ebb86f543596bf5a9d7654f52879f90f0a192e8d9d00364452087312a83108ff", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "ebb86f543596bf5a9d7654f52879f90f0a192e8d9d00364452087312a83108ff", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ebb86f543596bf5a9d7654f52879f90f0a192e8d9d00364452087312a83108ff", kill_on_drop: false }` [INFO] [stdout] ebb86f543596bf5a9d7654f52879f90f0a192e8d9d00364452087312a83108ff [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+93086cfebfccb79083c59d0d3b2052944bba643c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] b7425f4666067b2d0d56996030ca0885a9c6b42c3386a7ed4e872948cf0288b7 [INFO] running `Command { std: "docker" "start" "-a" "b7425f4666067b2d0d56996030ca0885a9c6b42c3386a7ed4e872948cf0288b7", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.103 [INFO] [stderr] Compiling unicode-ident v1.0.20 [INFO] [stderr] Compiling quote v1.0.41 [INFO] [stderr] Checking common v0.1.0 (/opt/rustwide/workdir/helpers/common) [INFO] [stderr] Compiling libc v0.2.177 [INFO] [stderr] Compiling thiserror v1.0.69 [INFO] [stderr] Checking cfg-if v1.0.4 [INFO] [stderr] Checking log v0.4.28 [INFO] [stderr] Checking smallvec v1.15.1 [INFO] [stderr] Compiling parking_lot_core v0.9.12 [INFO] [stderr] Checking scopeguard v1.2.0 [INFO] [stderr] Checking bytes v1.10.1 [INFO] [stderr] Checking lock_api v0.4.14 [INFO] [stderr] Checking pin-project-lite v0.2.16 [INFO] [stderr] Compiling serde_core v1.0.228 [INFO] [stderr] Checking itoa v1.0.15 [INFO] [stderr] Checking memchr v2.7.6 [INFO] [stderr] Compiling thiserror v2.0.18 [INFO] [stderr] Compiling serde v1.0.228 [INFO] [stderr] Checking stable_deref_trait v1.2.1 [INFO] [stderr] Compiling siphasher v1.0.1 [INFO] [stderr] Compiling rand_core v0.6.4 [INFO] [stderr] Checking bitflags v2.10.0 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[INFO] [stderr] Checking base64 v0.22.1 [INFO] [stderr] Checking http-range-header v0.4.2 [INFO] [stderr] Compiling thiserror-impl v1.0.69 [INFO] [stderr] Compiling tokio-macros v2.6.0 [INFO] [stderr] Compiling zerofrom-derive v0.1.6 [INFO] [stderr] Compiling yoke-derive v0.8.0 [INFO] [stderr] Compiling thiserror-impl v2.0.18 [INFO] [stderr] Compiling serde_derive v1.0.228 [INFO] [stderr] Checking tokio v1.48.0 [INFO] [stderr] Compiling zerovec-derive v0.11.1 [INFO] [stderr] Compiling displaydoc v0.2.5 [INFO] [stderr] Checking zerofrom v0.1.6 [INFO] [stderr] Checking yoke v0.8.0 [INFO] [stderr] Checking ticket_fields v0.1.0 (/opt/rustwide/workdir/helpers/ticket_fields) [INFO] [stderr] Compiling phf_macros v0.11.3 [INFO] [stderr] Compiling darling_macro v0.20.11 [INFO] [stderr] Compiling futures-macro v0.3.31 [INFO] [stderr] Checking tungstenite v0.28.0 [INFO] [stderr] Checking zerotrie v0.2.2 [INFO] [stderr] Compiling darling v0.20.11 [INFO] [stderr] Compiling derive_builder_core v0.20.2 [INFO] [stderr] Checking phf v0.11.3 [INFO] [stderr] Compiling clap_derive v4.5.49 [INFO] [stderr] Compiling match_token v0.35.0 [INFO] [stderr] Compiling cssparser-macros v0.6.1 [INFO] [stderr] Checking futures-util v0.3.31 [INFO] [stderr] Checking zerovec v0.11.4 [INFO] [stderr] Compiling pest_derive v2.8.3 [INFO] [stderr] Checking cssparser v0.35.0 [INFO] [stderr] Checking matchit v0.8.4 [INFO] [stderr] Checking maplit v1.0.2 [INFO] [stderr] Checking jiff v0.2.15 [INFO] [stderr] Compiling derive_builder_macro v0.20.2 [INFO] [stderr] Checking derive_builder v0.20.2 [INFO] [stderr] Checking chrono v0.4.42 [INFO] [stderr] Checking tinystr v0.8.1 [INFO] [stderr] Checking icu_locale_core v2.0.0 [INFO] [stderr] Checking potential_utf v0.1.3 [INFO] [stderr] Checking icu_provider v2.0.0 [INFO] [stderr] Checking icu_collections v2.0.0 [INFO] [stderr] Checking clap v4.5.50 [INFO] [stderr] Checking clap_complete v4.5.59 [INFO] [stderr] Checking ignore v0.4.24 [INFO] [stderr] Checking icu_properties v2.0.1 [INFO] [stderr] Checking icu_normalizer v2.0.0 [INFO] [stderr] Checking notify-debouncer-mini v0.6.0 [INFO] [stderr] Checking opener v0.8.3 [INFO] [stderr] Checking sha2 v0.10.9 [INFO] [stderr] Checking shlex v1.3.0 [INFO] [stderr] Checking topological-sort v0.2.2 [INFO] [stderr] Checking pathdiff v0.2.3 [INFO] [stderr] Checking string_cache v0.8.9 [INFO] [stderr] Checking serde_urlencoded v0.7.1 [INFO] [stderr] Checking toml v0.5.11 [INFO] [stderr] Checking handlebars v6.3.2 [INFO] [stderr] Checking elasticlunr-rs v3.0.2 [INFO] [stderr] Checking hex v0.4.3 [INFO] [stderr] Checking semver v1.0.27 [INFO] [stderr] Compiling pulldown-cmark v0.11.3 [INFO] [stderr] Checking hyper v1.7.0 [INFO] [stderr] Checking tower v0.5.2 [INFO] [stderr] Checking tokio-util v0.7.16 [INFO] [stderr] Checking idna_adapter v1.2.1 [INFO] [stderr] Checking idna v1.1.0 [INFO] [stderr] Checking tokio-tungstenite v0.28.0 [INFO] [stderr] Checking markup5ever v0.35.0 [INFO] [stderr] Checking unicode-width v0.2.2 [INFO] [stderr] Checking url v2.5.7 [INFO] [stderr] Checking pulldown-cmark-escape v0.11.0 [INFO] [stderr] Checking getopts v0.2.24 [INFO] [stderr] Checking either v1.15.0 [INFO] [stderr] Checking tower-http v0.6.6 [INFO] [stderr] Checking html5ever v0.35.0 [INFO] [stderr] Checking bimap v0.6.3 [INFO] [stderr] Checking itertools v0.13.0 [INFO] [stderr] Checking packages v0.1.0 (/opt/rustwide/workdir/exercises/05_ticket_v2/10_packages) [INFO] [stderr] Checking bounded v0.1.0 (/opt/rustwide/workdir/exercises/07_threads/09_bounded) [INFO] [stdout] warning: type `Command` is more private than the item `server` [INFO] [stdout] --> exercises/07_threads/09_bounded/src/lib.rs:64:1 [INFO] [stdout] | [INFO] [stdout] 64 | 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:49:1 [INFO] [stdout] | [INFO] [stdout] 49 | enum Command { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] = note: `#[warn(private_interfaces)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking client v0.1.0 (/opt/rustwide/workdir/exercises/07_threads/08_client) [INFO] [stderr] Checking response v0.1.0 (/opt/rustwide/workdir/exercises/07_threads/07_ack) [INFO] [stderr] Checking hyper-util v0.1.17 [INFO] [stderr] Checking patch v0.1.0 (/opt/rustwide/workdir/exercises/07_threads/10_patch) [INFO] [stderr] Checking locks v0.1.0 (/opt/rustwide/workdir/exercises/07_threads/11_locks) [INFO] [stderr] Checking rwlock v0.1.0 (/opt/rustwide/workdir/exercises/07_threads/12_rw_lock) [INFO] [stdout] warning: unused import: `TrySendError` [INFO] [stdout] --> exercises/07_threads/11_locks/src/lib.rs:4:59 [INFO] [stdout] | [INFO] [stdout] 4 | use std::sync::mpsc::{sync_channel, Receiver, SyncSender, TrySendError}; [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: type `Command` is more private than the item `server` [INFO] [stdout] --> exercises/07_threads/11_locks/src/lib.rs:63:1 [INFO] [stdout] | [INFO] [stdout] 63 | pub fn server(receiver: Receiver) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ function `server` is reachable at visibility `pub` [INFO] [stdout] | [INFO] [stdout] note: but type `Command` is only usable at visibility `pub(crate)` [INFO] [stdout] --> exercises/07_threads/11_locks/src/lib.rs:52:1 [INFO] [stdout] | [INFO] [stdout] 52 | enum Command { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] = note: `#[warn(private_interfaces)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking without_channels v0.1.0 (/opt/rustwide/workdir/exercises/07_threads/13_without_channels) [INFO] [stderr] Checking env_logger v0.11.8 [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] Checking channels v0.1.0 (/opt/rustwide/workdir/exercises/07_threads/05_channels) [INFO] [stdout] warning: type `Command` is more private than the item `server` [INFO] [stdout] --> exercises/07_threads/10_patch/src/lib.rs:77:1 [INFO] [stdout] | [INFO] [stdout] 77 | 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:62:1 [INFO] [stdout] | [INFO] [stdout] 62 | enum Command { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] = note: `#[warn(private_interfaces)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking outro_03 v0.1.0 (/opt/rustwide/workdir/exercises/04_traits/14_outro) [INFO] [stderr] Checking static_assertions v1.1.0 [INFO] [stderr] Checking outro_02 v0.1.0 (/opt/rustwide/workdir/exercises/03_ticket_v1/12_outro) [INFO] [stderr] Checking error_trait v0.1.0 (/opt/rustwide/workdir/exercises/05_ticket_v2/09_error_trait) [INFO] [stderr] Checking axum v0.8.6 [INFO] [stdout] warning: variants `InProgress` and `Done` are never constructed [INFO] [stdout] --> exercises/05_ticket_v2/09_error_trait/src/lib.rs:55:5 [INFO] [stdout] | [INFO] [stdout] 53 | enum Status { [INFO] [stdout] | ------ variants in this enum [INFO] [stdout] 54 | ToDo, [INFO] [stdout] 55 | InProgress { assigned_to: String }, [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] 56 | Done, [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Status` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking cancellation v0.1.0 (/opt/rustwide/workdir/exercises/08_futures/07_cancellation) [INFO] [stderr] Checking spawn v0.1.0 (/opt/rustwide/workdir/exercises/08_futures/02_spawn) [INFO] [stderr] Checking runtime v0.1.0 (/opt/rustwide/workdir/exercises/08_futures/03_runtime) [INFO] [stderr] Checking async_locks v0.1.0 (/opt/rustwide/workdir/exercises/08_futures/06_async_aware_primitives) [INFO] [stderr] Checking pulldown-cmark-to-cmark v15.0.1 [INFO] [stderr] Checking ammonia v4.1.2 [INFO] [stderr] Checking blocking v0.1.0 (/opt/rustwide/workdir/exercises/08_futures/05_blocking) [INFO] [stderr] Checking future v0.1.0 (/opt/rustwide/workdir/exercises/08_futures/04_future) [INFO] [stdout] warning: function `spawner` is never used [INFO] [stdout] --> exercises/08_futures/04_future/src/lib.rs:8:4 [INFO] [stdout] | [INFO] [stdout] 8 | fn spawner() { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `example` is never used [INFO] [stdout] --> exercises/08_futures/04_future/src/lib.rs:12:10 [INFO] [stdout] | [INFO] [stdout] 12 | async fn example() { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` in tuple element 0 that must be used [INFO] [stdout] --> exercises/08_futures/03_runtime/src/lib.rs:18:5 [INFO] [stdout] | [INFO] [stdout] 18 | tokio::join!(handle1, handle2); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` in tuple element 1 that must be used [INFO] [stdout] --> exercises/08_futures/03_runtime/src/lib.rs:18:5 [INFO] [stdout] | [INFO] [stdout] 18 | tokio::join!(handle1, handle2); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking async_fn v0.1.0 (/opt/rustwide/workdir/exercises/08_futures/01_async_fn) [INFO] [stdout] warning: function `spawner` is never used [INFO] [stdout] --> exercises/08_futures/04_future/src/lib.rs:8:4 [INFO] [stdout] | [INFO] [stdout] 8 | fn spawner() { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `example` is never used [INFO] [stdout] --> exercises/08_futures/04_future/src/lib.rs:12:10 [INFO] [stdout] | [INFO] [stdout] 12 | async fn example() { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` in tuple element 0 that must be used [INFO] [stdout] --> exercises/08_futures/03_runtime/src/lib.rs:18:5 [INFO] [stdout] | [INFO] [stdout] 18 | tokio::join!(handle1, handle2); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` in tuple element 1 that must be used [INFO] [stdout] --> exercises/08_futures/03_runtime/src/lib.rs:18:5 [INFO] [stdout] | [INFO] [stdout] 18 | tokio::join!(handle1, handle2); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking outro_08 v0.1.0 (/opt/rustwide/workdir/exercises/08_futures/08_outro) [INFO] [stderr] Checking thiserror_ v0.1.0 (/opt/rustwide/workdir/exercises/05_ticket_v2/12_thiserror) [INFO] [stdout] warning: type `Command` is more private than the item `server` [INFO] [stdout] --> exercises/07_threads/09_bounded/src/lib.rs:64:1 [INFO] [stdout] | [INFO] [stdout] 64 | 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:49:1 [INFO] [stdout] | [INFO] [stdout] 49 | enum Command { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] = note: `#[warn(private_interfaces)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking outro_04 v0.1.0 (/opt/rustwide/workdir/exercises/05_ticket_v2/15_outro) [INFO] [stderr] Checking tryfrom v0.1.0 (/opt/rustwide/workdir/exercises/05_ticket_v2/13_try_from) [INFO] [stdout] warning: enum `TicketNewError` is never used [INFO] [stdout] --> exercises/05_ticket_v2/12_thiserror/src/lib.rs:7:6 [INFO] [stdout] | [INFO] [stdout] 7 | enum TicketNewError { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Ticket` is never constructed [INFO] [stdout] --> exercises/05_ticket_v2/12_thiserror/src/lib.rs:19:8 [INFO] [stdout] | [INFO] [stdout] 19 | struct Ticket { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `Status` is never used [INFO] [stdout] --> exercises/05_ticket_v2/12_thiserror/src/lib.rs:26:6 [INFO] [stdout] | [INFO] [stdout] 26 | enum Status { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `new` is never used [INFO] [stdout] --> exercises/05_ticket_v2/12_thiserror/src/lib.rs:33:12 [INFO] [stdout] | [INFO] [stdout] 32 | impl Ticket { [INFO] [stdout] | ----------- associated function in this implementation [INFO] [stdout] 33 | pub fn new( [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `Status` is never used [INFO] [stdout] --> exercises/05_ticket_v2/13_try_from/src/lib.rs:5:6 [INFO] [stdout] | [INFO] [stdout] 5 | enum Status { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `ParseStatusError` is never constructed [INFO] [stdout] --> exercises/05_ticket_v2/13_try_from/src/lib.rs:13:8 [INFO] [stdout] | [INFO] [stdout] 13 | struct ParseStatusError { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking impl_trait_2 v0.1.0 (/opt/rustwide/workdir/exercises/06_ticket_management/09_impl_trait_2) [INFO] [stdout] warning: variants `InProgress` and `Done` are never constructed [INFO] [stdout] --> exercises/05_ticket_v2/12_thiserror/src/lib.rs:28:5 [INFO] [stdout] | [INFO] [stdout] 26 | enum Status { [INFO] [stdout] | ------ variants in this enum [INFO] [stdout] 27 | ToDo, [INFO] [stdout] 28 | InProgress { assigned_to: String }, [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] 29 | Done, [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Status` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking hashmap v0.1.0 (/opt/rustwide/workdir/exercises/06_ticket_management/15_hashmap) [INFO] [stderr] Checking impl_trait v0.1.0 (/opt/rustwide/workdir/exercises/06_ticket_management/08_impl_trait) [INFO] [stderr] Checking btreemap v0.1.0 (/opt/rustwide/workdir/exercises/06_ticket_management/16_btreemap) [INFO] [stderr] Checking iterators v0.1.0 (/opt/rustwide/workdir/exercises/06_ticket_management/04_iterators) [INFO] [stderr] Checking 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:93:13 [INFO] [stdout] | [INFO] [stdout] 93 | let ticket2 = store.get(id2).unwrap(); [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_ticket2` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking index v0.1.0 (/opt/rustwide/workdir/exercises/06_ticket_management/13_index) [INFO] [stderr] Checking iter v0.1.0 (/opt/rustwide/workdir/exercises/06_ticket_management/05_iter) [INFO] [stdout] warning: unused import: `TrySendError` [INFO] [stdout] --> exercises/07_threads/11_locks/src/lib.rs:4:59 [INFO] [stdout] | [INFO] [stdout] 4 | use std::sync::mpsc::{sync_channel, Receiver, SyncSender, TrySendError}; [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: type `Command` is more private than the item `server` [INFO] [stdout] --> exercises/07_threads/11_locks/src/lib.rs:63:1 [INFO] [stdout] | [INFO] [stdout] 63 | pub fn server(receiver: Receiver) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ function `server` is reachable at visibility `pub` [INFO] [stdout] | [INFO] [stdout] note: but type `Command` is only usable at visibility `pub(crate)` [INFO] [stdout] --> exercises/07_threads/11_locks/src/lib.rs:52:1 [INFO] [stdout] | [INFO] [stdout] 52 | enum Command { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] = note: `#[warn(private_interfaces)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `i` [INFO] [stdout] --> exercises/06_ticket_management/16_btreemap/src/lib.rs:118:13 [INFO] [stdout] | [INFO] [stdout] 118 | for i in 0..n_tickets { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `ticket2` [INFO] [stdout] --> exercises/06_ticket_management/13_index/src/lib.rs:101:13 [INFO] [stdout] | [INFO] [stdout] 101 | let ticket2 = &store[&id2]; [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_ticket2` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> exercises/06_ticket_management/05_iter/src/lib.rs:38:17 [INFO] [stdout] | [INFO] [stdout] 38 | pub fn iter(&self) -> std::slice::Iter { [INFO] [stdout] | ^^^^^ ^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here [INFO] [stdout] | | [INFO] [stdout] | the lifetime is elided here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 38 | pub fn iter(&self) -> std::slice::Iter<'_, Ticket> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking index_mut v0.1.0 (/opt/rustwide/workdir/exercises/06_ticket_management/14_index_mut) [INFO] [stdout] warning: type `Command` is more private than the item `server` [INFO] [stdout] --> exercises/07_threads/10_patch/src/lib.rs:77:1 [INFO] [stdout] | [INFO] [stdout] 77 | 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:62:1 [INFO] [stdout] | [INFO] [stdout] 62 | enum Command { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] = note: `#[warn(private_interfaces)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: type `Command` is more private than the item `server` [INFO] [stdout] --> exercises/07_threads/12_rw_lock/src/lib.rs:62:1 [INFO] [stdout] | [INFO] [stdout] 62 | pub fn server(receiver: Receiver) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ function `server` is reachable at visibility `pub` [INFO] [stdout] | [INFO] [stdout] note: but type `Command` is only usable at visibility `pub(crate)` [INFO] [stdout] --> exercises/07_threads/12_rw_lock/src/lib.rs:51:1 [INFO] [stdout] | [INFO] [stdout] 51 | enum Command { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] = note: `#[warn(private_interfaces)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking lifetime v0.1.0 (/opt/rustwide/workdir/exercises/06_ticket_management/06_lifetimes) [INFO] [stderr] Checking combinators v0.1.0 (/opt/rustwide/workdir/exercises/06_ticket_management/07_combinators) [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> exercises/06_ticket_management/06_lifetimes/src/lib.rs:34:17 [INFO] [stdout] | [INFO] [stdout] 34 | pub fn iter(&self) -> std::slice::Iter { [INFO] [stdout] | ^^^^^ ^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here [INFO] [stdout] | | [INFO] [stdout] | the lifetime is elided here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 34 | pub fn iter(&self) -> std::slice::Iter<'_, Ticket> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> exercises/06_ticket_management/06_lifetimes/src/lib.rs:34:17 [INFO] [stdout] | [INFO] [stdout] 34 | pub fn iter(&self) -> std::slice::Iter { [INFO] [stdout] | ^^^^^ ^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here [INFO] [stdout] | | [INFO] [stdout] | the lifetime is elided here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 34 | pub fn iter(&self) -> std::slice::Iter<'_, Ticket> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking source v0.1.0 (/opt/rustwide/workdir/exercises/05_ticket_v2/14_source) [INFO] [stderr] Checking deps v0.1.0 (/opt/rustwide/workdir/exercises/05_ticket_v2/11_dependencies) [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> exercises/06_ticket_management/05_iter/src/lib.rs:38:17 [INFO] [stdout] | [INFO] [stdout] 38 | pub fn iter(&self) -> std::slice::Iter { [INFO] [stdout] | ^^^^^ ^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here [INFO] [stdout] | | [INFO] [stdout] | the lifetime is elided here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 38 | pub fn iter(&self) -> std::slice::Iter<'_, Ticket> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking error_enums v0.1.0 (/opt/rustwide/workdir/exercises/05_ticket_v2/08_error_enums) [INFO] [stdout] warning: unused import: `anyhow::Error` [INFO] [stdout] --> exercises/05_ticket_v2/11_dependencies/src/lib.rs:6:5 [INFO] [stdout] | [INFO] [stdout] 6 | use anyhow::Error; [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `anyhow::Error` [INFO] [stdout] --> exercises/05_ticket_v2/11_dependencies/src/lib.rs:6:5 [INFO] [stdout] | [INFO] [stdout] 6 | use anyhow::Error; [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking validation v0.1.0 (/opt/rustwide/workdir/exercises/03_ticket_v1/02_validation) [INFO] [stderr] Checking setters v0.1.0 (/opt/rustwide/workdir/exercises/03_ticket_v1/07_setters) [INFO] [stderr] Checking nullability v0.1.0 (/opt/rustwide/workdir/exercises/05_ticket_v2/05_nullability) [INFO] [stderr] Checking unwrap v0.1.0 (/opt/rustwide/workdir/exercises/05_ticket_v2/07_unwrap) [INFO] [stderr] Checking enum_ v0.1.0 (/opt/rustwide/workdir/exercises/05_ticket_v2/01_enum) [INFO] [stderr] Checking str_slice v0.1.0 (/opt/rustwide/workdir/exercises/04_traits/06_str_slice) [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> exercises/05_ticket_v2/08_error_enums/src/lib.rs:7:22 [INFO] [stdout] | [INFO] [stdout] 7 | DescriptionError(String), [INFO] [stdout] | ---------------- ^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] = note: `TicketNewError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 7 - DescriptionError(String), [INFO] [stdout] 7 + DescriptionError(()), [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variants `InProgress` and `Done` are never constructed [INFO] [stdout] --> exercises/05_ticket_v2/08_error_enums/src/lib.rs:34:5 [INFO] [stdout] | [INFO] [stdout] 32 | enum Status { [INFO] [stdout] | ------ variants in this enum [INFO] [stdout] 33 | ToDo, [INFO] [stdout] 34 | InProgress { assigned_to: String }, [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] 35 | Done, [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Status` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking fallibility v0.1.0 (/opt/rustwide/workdir/exercises/05_ticket_v2/06_fallibility) [INFO] [stdout] warning: variants `InProgress` and `Done` are never constructed [INFO] [stdout] --> exercises/05_ticket_v2/07_unwrap/src/lib.rs:27:5 [INFO] [stdout] | [INFO] [stdout] 25 | enum Status { [INFO] [stdout] | ------ variants in this enum [INFO] [stdout] 26 | ToDo, [INFO] [stdout] 27 | InProgress { assigned_to: String }, [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] 28 | Done, [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Status` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking variants_with_data v0.1.0 (/opt/rustwide/workdir/exercises/05_ticket_v2/03_variants_with_data) [INFO] [stderr] Checking overloading v0.1.0 (/opt/rustwide/workdir/exercises/04_traits/03_operator_overloading) [INFO] [stdout] warning: associated items `new`, `title`, `description`, and `status` are never used [INFO] [stdout] --> exercises/05_ticket_v2/01_enum/src/lib.rs:21:12 [INFO] [stdout] | [INFO] [stdout] 20 | impl Ticket { [INFO] [stdout] | ----------- associated items in this implementation [INFO] [stdout] 21 | pub fn new(title: String, description: String, status: Status) -> Ticket { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 45 | pub fn title(&self) -> &String { [INFO] [stdout] | ^^^^^ [INFO] [stdout] ... [INFO] [stdout] 49 | pub fn description(&self) -> &String { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 53 | pub fn status(&self) -> &Status { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking heap v0.1.0 (/opt/rustwide/workdir/exercises/03_ticket_v1/09_heap) [INFO] [stderr] Checking if_let v0.1.0 (/opt/rustwide/workdir/exercises/05_ticket_v2/04_if_let) [INFO] [stdout] warning: variants `InProgress` and `Done` are never constructed [INFO] [stdout] --> exercises/05_ticket_v2/06_fallibility/src/lib.rs:14:5 [INFO] [stdout] | [INFO] [stdout] 12 | enum Status { [INFO] [stdout] | ------ variants in this enum [INFO] [stdout] 13 | ToDo, [INFO] [stdout] 14 | InProgress { assigned_to: String }, [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] 15 | Done, [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Status` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `border` is never read [INFO] [stdout] --> exercises/05_ticket_v2/04_if_let/src/lib.rs:3:14 [INFO] [stdout] | [INFO] [stdout] 3 | Square { border: f64 }, [INFO] [stdout] | ------ ^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `width` and `height` are never read [INFO] [stdout] --> exercises/05_ticket_v2/04_if_let/src/lib.rs:4:17 [INFO] [stdout] | [INFO] [stdout] 4 | Rectangle { width: f64, height: f64 }, [INFO] [stdout] | --------- ^^^^^ ^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | fields in this variant [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking interior_mutability v0.1.0 (/opt/rustwide/workdir/exercises/07_threads/06_interior_mutability) [INFO] [stderr] Checking sized v0.1.0 (/opt/rustwide/workdir/exercises/04_traits/08_sized) [INFO] [stderr] Checking destructor v0.1.0 (/opt/rustwide/workdir/exercises/03_ticket_v1/11_destructor) [INFO] [stderr] Checking overflow v0.1.0 (/opt/rustwide/workdir/exercises/02_basic_calculator/08_overflow) [INFO] [stdout] error: struct `Ticket` is never constructed [INFO] [stdout] --> exercises/03_ticket_v1/09_heap/src/lib.rs:1:12 [INFO] [stdout] | [INFO] [stdout] 1 | pub struct Ticket { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `pub` struct has private fields, no public constructor, and is not otherwise reachable through the external API, so consider providing a public constructor or removing it [INFO] [stdout] = note: `#[deny(unused_unconstructable_pub_structs)]` (part of `#[deny(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `title`, `description`, and `status` are never read [INFO] [stdout] --> exercises/03_ticket_v1/09_heap/src/lib.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 1 | pub struct Ticket { [INFO] [stdout] | ------ fields in this struct [INFO] [stdout] 2 | title: String, [INFO] [stdout] | ^^^^^ [INFO] [stdout] 3 | description: String, [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] 4 | status: String, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `heap` (lib) due to 1 previous error; 1 warning emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] warning: struct `Ticket` is never constructed [INFO] [stdout] --> exercises/05_ticket_v2/06_fallibility/src/lib.rs:5:8 [INFO] [stdout] | [INFO] [stdout] 5 | struct Ticket { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `Status` is never used [INFO] [stdout] --> exercises/05_ticket_v2/06_fallibility/src/lib.rs:12:6 [INFO] [stdout] | [INFO] [stdout] 12 | enum Status { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `new` is never used [INFO] [stdout] --> exercises/05_ticket_v2/06_fallibility/src/lib.rs:19:12 [INFO] [stdout] | [INFO] [stdout] 18 | impl Ticket { [INFO] [stdout] | ----------- associated function in this implementation [INFO] [stdout] 19 | pub fn new(title: String, description: String, status: Status) -> Result { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `value` is never read [INFO] [stdout] --> exercises/07_threads/06_interior_mutability/src/lib.rs:8:5 [INFO] [stdout] | [INFO] [stdout] 7 | pub struct DropTracker { [INFO] [stdout] | ----------- field in this struct [INFO] [stdout] 8 | value: T, [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "b7425f4666067b2d0d56996030ca0885a9c6b42c3386a7ed4e872948cf0288b7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b7425f4666067b2d0d56996030ca0885a9c6b42c3386a7ed4e872948cf0288b7", kill_on_drop: false }` [INFO] [stdout] b7425f4666067b2d0d56996030ca0885a9c6b42c3386a7ed4e872948cf0288b7