[INFO] cloning repository https://github.com/JackPeterFletch/100-exercises-to-learn-rust [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/JackPeterFletch/100-exercises-to-learn-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJackPeterFletch%2F100-exercises-to-learn-rust", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJackPeterFletch%2F100-exercises-to-learn-rust'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 5fab3f9d086a4ab1833e8381b0dc965826f35dd8 [INFO] checking JackPeterFletch/100-exercises-to-learn-rust/5fab3f9d086a4ab1833e8381b0dc965826f35dd8 against try#4d98531622e1718ae0bc3c7a1ab9cd8938428452+rustflags=-Dtail_expr_drop_order for pr-129604 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJackPeterFletch%2F100-exercises-to-learn-rust" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/JackPeterFletch/100-exercises-to-learn-rust on toolchain 4d98531622e1718ae0bc3c7a1ab9cd8938428452 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4d98531622e1718ae0bc3c7a1ab9cd8938428452" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/JackPeterFletch/100-exercises-to-learn-rust [INFO] finished tweaking git repo https://github.com/JackPeterFletch/100-exercises-to-learn-rust [INFO] tweaked toml for git repo https://github.com/JackPeterFletch/100-exercises-to-learn-rust written to /workspace/builds/worker-6-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/JackPeterFletch/100-exercises-to-learn-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" "+4d98531622e1718ae0bc3c7a1ab9cd8938428452" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+4d98531622e1718ae0bc3c7a1ab9cd8938428452" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] bfdb02fc729533f08002decac60fadb3edc8e1c6881292245be29b3650f95a93 [INFO] running `Command { std: "docker" "start" "-a" "bfdb02fc729533f08002decac60fadb3edc8e1c6881292245be29b3650f95a93", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "bfdb02fc729533f08002decac60fadb3edc8e1c6881292245be29b3650f95a93", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "bfdb02fc729533f08002decac60fadb3edc8e1c6881292245be29b3650f95a93", kill_on_drop: false }` [INFO] [stdout] bfdb02fc729533f08002decac60fadb3edc8e1c6881292245be29b3650f95a93 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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 -Dtail_expr_drop_order" "-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+4d98531622e1718ae0bc3c7a1ab9cd8938428452" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 4b5b7c002527999a64240c53d3612d6c4410f739c4130d4d9a157e9b8db8a2d0 [INFO] running `Command { std: "docker" "start" "-a" "4b5b7c002527999a64240c53d3612d6c4410f739c4130d4d9a157e9b8db8a2d0", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.82 [INFO] [stderr] Compiling unicode-ident v1.0.12 [INFO] [stderr] Checking common v0.1.0 (/opt/rustwide/workdir/helpers/common) [INFO] [stderr] Compiling thiserror v1.0.61 [INFO] [stderr] Compiling libc v0.2.154 [INFO] [stderr] Compiling autocfg v1.3.0 [INFO] [stderr] Compiling parking_lot_core v0.9.10 [INFO] [stderr] Checking smallvec v1.13.2 [INFO] [stderr] Checking scopeguard v1.2.0 [INFO] [stderr] Checking cfg-if v1.0.0 [INFO] [stderr] Checking bytes v1.6.0 [INFO] [stderr] Checking pin-project-lite v0.2.14 [INFO] [stderr] Compiling anyhow v1.0.86 [INFO] [stderr] Checking packages v0.1.0 (/opt/rustwide/workdir/exercises/05_ticket_v2/10_packages) [INFO] [stderr] Checking outro_02 v0.1.0 (/opt/rustwide/workdir/exercises/03_ticket_v1/12_outro) [INFO] [stderr] Checking outro_03 v0.1.0 (/opt/rustwide/workdir/exercises/04_traits/13_outro) [INFO] [stderr] Checking static_assertions v1.1.0 [INFO] [stderr] Checking setters v0.1.0 (/opt/rustwide/workdir/exercises/03_ticket_v1/07_setters) [INFO] [stderr] Checking error_trait v0.1.0 (/opt/rustwide/workdir/exercises/05_ticket_v2/09_error_trait) [INFO] [stderr] Checking enum_ v0.1.0 (/opt/rustwide/workdir/exercises/05_ticket_v2/01_enum) [INFO] [stderr] Checking error_enums v0.1.0 (/opt/rustwide/workdir/exercises/05_ticket_v2/08_error_enums) [INFO] [stderr] Checking validation v0.1.0 (/opt/rustwide/workdir/exercises/03_ticket_v1/02_validation) [INFO] [stderr] Checking nullability v0.1.0 (/opt/rustwide/workdir/exercises/05_ticket_v2/05_nullability) [INFO] [stderr] Checking variants_with_data v0.1.0 (/opt/rustwide/workdir/exercises/05_ticket_v2/03_variants_with_data) [INFO] [stderr] Checking fallibility v0.1.0 (/opt/rustwide/workdir/exercises/05_ticket_v2/06_fallibility) [INFO] [stdout] warning: unnecessary parentheses around `if` condition [INFO] [stdout] --> exercises/03_ticket_v1/02_validation/src/lib.rs:21:11 [INFO] [stdout] | [INFO] [stdout] 21 | if(title.len() == 0 ){ [INFO] [stdout] | ^ ^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 21 - if(title.len() == 0 ){ [INFO] [stdout] 21 + if title.len() == 0 { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `message` [INFO] [stdout] --> exercises/05_ticket_v2/08_error_enums/src/lib.rs:35:32 [INFO] [stdout] | [INFO] [stdout] 35 | DescriptionError { message } => { [INFO] [stdout] | ^^^^^^^ help: try ignoring the field: `message: _` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [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: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)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around `if` condition [INFO] [stdout] --> exercises/03_ticket_v1/02_validation/src/lib.rs:25:11 [INFO] [stdout] | [INFO] [stdout] 25 | if(title.len() > 50) { [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 25 - if(title.len() > 50) { [INFO] [stdout] 25 + if title.len() > 50 { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around `if` condition [INFO] [stdout] --> exercises/03_ticket_v1/02_validation/src/lib.rs:29:11 [INFO] [stdout] | [INFO] [stdout] 29 | if(description.len() == 0 ){ [INFO] [stdout] | ^ ^^ [INFO] [stdout] | [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 29 - if(description.len() == 0 ){ [INFO] [stdout] 29 + if description.len() == 0 { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around `if` condition [INFO] [stdout] --> exercises/03_ticket_v1/02_validation/src/lib.rs:33:11 [INFO] [stdout] | [INFO] [stdout] 33 | if(description.len() > 500) { [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 33 - if(description.len() > 500) { [INFO] [stdout] 33 + if description.len() > 500 { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking 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_v2/09_error_trait/src/lib.rs:61:5 [INFO] [stdout] | [INFO] [stdout] 59 | enum Status { [INFO] [stdout] | ------ variants in this enum [INFO] [stdout] 60 | ToDo, [INFO] [stdout] 61 | InProgress { assigned_to: String }, [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] 62 | 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)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `title`, `description`, and `status` are never read [INFO] [stdout] --> exercises/03_ticket_v1/02_validation/src/lib.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 1 | 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: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking str_slice v0.1.0 (/opt/rustwide/workdir/exercises/04_traits/05_str_slice) [INFO] [stdout] warning: 5 warnings emitted [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:23:12 [INFO] [stdout] | [INFO] [stdout] 22 | impl Ticket { [INFO] [stdout] | ----------- associated items in this implementation [INFO] [stdout] 23 | pub fn new(title: String, description: String, status: Status) -> Ticket { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 47 | pub fn title(&self) -> &String { [INFO] [stdout] | ^^^^^ [INFO] [stdout] ... [INFO] [stdout] 51 | pub fn description(&self) -> &String { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 55 | pub fn status(&self) -> &Status { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking heap v0.1.0 (/opt/rustwide/workdir/exercises/03_ticket_v1/09_heap) [INFO] [stderr] Checking ownership v0.1.0 (/opt/rustwide/workdir/exercises/03_ticket_v1/06_ownership) [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] Checking slice v0.1.0 (/opt/rustwide/workdir/exercises/06_ticket_management/10_slices) [INFO] [stderr] Checking welcome_00 v0.1.0 (/opt/rustwide/workdir/exercises/01_intro/00_welcome) [INFO] [stderr] Checking overflow v0.1.0 (/opt/rustwide/workdir/exercises/02_basic_calculator/08_overflow) [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking visibility v0.1.0 (/opt/rustwide/workdir/exercises/03_ticket_v1/04_visibility) [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] Checking intro_07 v0.1.0 (/opt/rustwide/workdir/exercises/07_threads/00_intro) [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)]` 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: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking struct_ v0.1.0 (/opt/rustwide/workdir/exercises/03_ticket_v1/01_struct) [INFO] [stdout] warning: variants `InProgress` and `Done` are never constructed [INFO] [stdout] --> exercises/05_ticket_v2/07_unwrap/src/lib.rs:45:5 [INFO] [stdout] | [INFO] [stdout] 43 | enum Status { [INFO] [stdout] | ------ variants in this enum [INFO] [stdout] 44 | ToDo, [INFO] [stdout] 45 | InProgress { assigned_to: String }, [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] 46 | 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)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking deref v0.1.0 (/opt/rustwide/workdir/exercises/04_traits/06_deref) [INFO] [stderr] Checking copy v0.1.0 (/opt/rustwide/workdir/exercises/04_traits/11_copy) [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking while_ v0.1.0 (/opt/rustwide/workdir/exercises/02_basic_calculator/06_while) [INFO] [stdout] warning: struct `Order` is never constructed [INFO] [stdout] --> exercises/03_ticket_v1/01_struct/src/lib.rs:8:8 [INFO] [stdout] | [INFO] [stdout] 8 | struct Order { [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `is_available` is never used [INFO] [stdout] --> exercises/03_ticket_v1/01_struct/src/lib.rs:14:8 [INFO] [stdout] | [INFO] [stdout] 13 | impl Order { [INFO] [stdout] | ---------- method in this implementation [INFO] [stdout] 14 | fn is_available(self) -> bool { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `ticket` [INFO] [stdout] --> exercises/03_ticket_v1/04_visibility/src/lib.rs:71:13 [INFO] [stdout] | [INFO] [stdout] 71 | let ticket = Ticket { [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_ticket` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Ticket` is never constructed [INFO] [stdout] --> exercises/03_ticket_v1/04_visibility/src/lib.rs:2:16 [INFO] [stdout] | [INFO] [stdout] 2 | pub struct Ticket { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `new` is never used [INFO] [stdout] --> exercises/03_ticket_v1/04_visibility/src/lib.rs:9:16 [INFO] [stdout] | [INFO] [stdout] 8 | impl Ticket { [INFO] [stdout] | ----------- associated function in this implementation [INFO] [stdout] 9 | pub fn new(title: String, description: String, status: String) -> Ticket { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `should_not_be_possible` is never used [INFO] [stdout] --> exercises/03_ticket_v1/04_visibility/src/lib.rs:46:8 [INFO] [stdout] | [INFO] [stdout] 46 | fn should_not_be_possible() { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `encapsulation_cannot_be_violated` is never used [INFO] [stdout] --> exercises/03_ticket_v1/04_visibility/src/lib.rs:61:8 [INFO] [stdout] | [INFO] [stdout] 61 | fn encapsulation_cannot_be_violated() { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [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] Checking intro_08 v0.1.0 (/opt/rustwide/workdir/exercises/08_futures/00_intro) [INFO] [stdout] warning: 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `status` is never read [INFO] [stdout] --> exercises/04_traits/06_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] Checking scoped_threads v0.1.0 (/opt/rustwide/workdir/exercises/07_threads/04_scoped_threads) [INFO] [stderr] Checking mut_slice v0.1.0 (/opt/rustwide/workdir/exercises/06_ticket_management/11_mutable_slices) [INFO] [stderr] Checking syntax v0.1.0 (/opt/rustwide/workdir/exercises/01_intro/01_syntax) [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking static v0.1.0 (/opt/rustwide/workdir/exercises/07_threads/02_static) [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around `while` condition [INFO] [stdout] --> exercises/02_basic_calculator/06_while/src/lib.rs:10:11 [INFO] [stdout] | [INFO] [stdout] 10 | while (current < n) { [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 10 - while (current < n) { [INFO] [stdout] 10 + while current < n { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking 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: `#[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:16:6 [INFO] [stdout] | [INFO] [stdout] 16 | enum Status { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `new`, `title`, `description`, and `status` are never used [INFO] [stdout] --> exercises/05_ticket_v2/01_enum/src/lib.rs:23:12 [INFO] [stdout] | [INFO] [stdout] 22 | impl Ticket { [INFO] [stdout] | ----------- associated items in this implementation [INFO] [stdout] 23 | pub fn new(title: String, description: String, status: Status) -> Ticket { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 47 | pub fn title(&self) -> &String { [INFO] [stdout] | ^^^^^ [INFO] [stdout] ... [INFO] [stdout] 51 | pub fn description(&self) -> &String { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 55 | pub fn status(&self) -> &Status { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking integers v0.1.0 (/opt/rustwide/workdir/exercises/02_basic_calculator/01_integers) [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `TicketNewError` is never used [INFO] [stdout] --> exercises/05_ticket_v2/09_error_trait/src/lib.rs:11:6 [INFO] [stdout] | [INFO] [stdout] 11 | enum TicketNewError { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [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:36:4 [INFO] [stdout] | [INFO] [stdout] 36 | 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:52:8 [INFO] [stdout] | [INFO] [stdout] 52 | struct Ticket { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `Status` is never used [INFO] [stdout] --> exercises/05_ticket_v2/09_error_trait/src/lib.rs:59:6 [INFO] [stdout] | [INFO] [stdout] 59 | enum Status { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `new` is never used [INFO] [stdout] --> exercises/05_ticket_v2/09_error_trait/src/lib.rs:66:12 [INFO] [stdout] | [INFO] [stdout] 65 | impl Ticket { [INFO] [stdout] | ----------- associated function in this implementation [INFO] [stdout] 66 | pub fn new( [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking panics v0.1.0 (/opt/rustwide/workdir/exercises/02_basic_calculator/04_panics) [INFO] [stderr] Checking arrays v0.1.0 (/opt/rustwide/workdir/exercises/06_ticket_management/01_arrays) [INFO] [stderr] Checking variables v0.1.0 (/opt/rustwide/workdir/exercises/02_basic_calculator/02_variables) [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: function `compute` is never used [INFO] [stdout] --> exercises/01_intro/01_syntax/src/lib.rs:6:4 [INFO] [stdout] | [INFO] [stdout] 6 | fn compute(a: u32, b: u32) -> u32 { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `compute` is never used [INFO] [stdout] --> exercises/02_basic_calculator/01_integers/src/lib.rs:1:4 [INFO] [stdout] | [INFO] [stdout] 1 | fn compute(a: u32, b: u32) -> u32 { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking intro_02 v0.1.0 (/opt/rustwide/workdir/exercises/03_ticket_v1/00_intro) [INFO] [stdout] warning: unnecessary parentheses around `if` condition [INFO] [stdout] --> exercises/03_ticket_v1/02_validation/src/lib.rs:21:11 [INFO] [stdout] | [INFO] [stdout] 21 | if(title.len() == 0 ){ [INFO] [stdout] | ^ ^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 21 - if(title.len() == 0 ){ [INFO] [stdout] 21 + if title.len() == 0 { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around `if` condition [INFO] [stdout] --> exercises/03_ticket_v1/02_validation/src/lib.rs:25:11 [INFO] [stdout] | [INFO] [stdout] 25 | if(title.len() > 50) { [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 25 - if(title.len() > 50) { [INFO] [stdout] 25 + if title.len() > 50 { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around `if` condition [INFO] [stdout] --> exercises/03_ticket_v1/02_validation/src/lib.rs:29:11 [INFO] [stdout] | [INFO] [stdout] 29 | if(description.len() == 0 ){ [INFO] [stdout] | ^ ^^ [INFO] [stdout] | [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 29 - if(description.len() == 0 ){ [INFO] [stdout] 29 + if description.len() == 0 { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around `if` condition [INFO] [stdout] --> exercises/03_ticket_v1/02_validation/src/lib.rs:33:11 [INFO] [stdout] | [INFO] [stdout] 33 | if(description.len() > 500) { [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 33 - if(description.len() > 500) { [INFO] [stdout] 33 + if description.len() > 500 { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Ticket` is never constructed [INFO] [stdout] --> exercises/03_ticket_v1/02_validation/src/lib.rs:1:8 [INFO] [stdout] | [INFO] [stdout] 1 | 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_v1/02_validation/src/lib.rs:19:8 [INFO] [stdout] | [INFO] [stdout] 7 | impl Ticket { [INFO] [stdout] | ----------- associated function in this implementation [INFO] [stdout] ... [INFO] [stdout] 19 | fn new(title: String, description: String, status: String) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 6 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling lock_api v0.4.12 [INFO] [stderr] Checking intro_05 v0.1.0 (/opt/rustwide/workdir/exercises/06_ticket_management/00_intro) [INFO] [stdout] warning: unnecessary parentheses around `if` condition [INFO] [stdout] --> exercises/02_basic_calculator/04_panics/src/lib.rs:5:8 [INFO] [stdout] | [INFO] [stdout] 5 | if (time_elapsed == 0) { [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 5 - if (time_elapsed == 0) { [INFO] [stdout] 5 + if time_elapsed == 0 { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `intro` is never used [INFO] [stdout] --> exercises/03_ticket_v1/00_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 `greeting` is never used [INFO] [stdout] --> exercises/01_intro/00_welcome/src/lib.rs:18:4 [INFO] [stdout] | [INFO] [stdout] 18 | fn greeting() -> &'static str { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking derives v0.1.0 (/opt/rustwide/workdir/exercises/04_traits/04_derive) [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking as_cast v0.1.0 (/opt/rustwide/workdir/exercises/02_basic_calculator/10_as_casting) [INFO] [stderr] Checking modules v0.1.0 (/opt/rustwide/workdir/exercises/03_ticket_v1/03_modules) [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] [stderr] Checking leaking v0.1.0 (/opt/rustwide/workdir/exercises/07_threads/03_leak) [INFO] [stdout] warning: unnecessary parentheses around `while` condition [INFO] [stdout] --> exercises/02_basic_calculator/06_while/src/lib.rs:10:11 [INFO] [stdout] | [INFO] [stdout] 10 | while (current < n) { [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 10 - while (current < n) { [INFO] [stdout] 10 + while current < n { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking tryfrom v0.1.0 (/opt/rustwide/workdir/exercises/05_ticket_v2/13_try_from) [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: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking if_else v0.1.0 (/opt/rustwide/workdir/exercises/02_basic_calculator/03_if_else) [INFO] [stderr] Checking resizing v0.1.0 (/opt/rustwide/workdir/exercises/06_ticket_management/03_resizing) [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking references_in_memory v0.1.0 (/opt/rustwide/workdir/exercises/03_ticket_v1/10_references_in_memory) [INFO] [stdout] warning: struct `Ticket` is never constructed [INFO] [stdout] --> exercises/04_traits/04_derive/src/lib.rs:13:8 [INFO] [stdout] | [INFO] [stdout] 13 | struct Ticket { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking interior_mutability v0.1.0 (/opt/rustwide/workdir/exercises/07_threads/06_interior_mutability) [INFO] [stdout] warning: unnecessary parentheses around `if` condition [INFO] [stdout] --> exercises/02_basic_calculator/04_panics/src/lib.rs:5:8 [INFO] [stdout] | [INFO] [stdout] 5 | if (time_elapsed == 0) { [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 5 - if (time_elapsed == 0) { [INFO] [stdout] 5 + if time_elapsed == 0 { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `speed` is never used [INFO] [stdout] --> exercises/02_basic_calculator/04_panics/src/lib.rs:3:4 [INFO] [stdout] | [INFO] [stdout] 3 | fn speed(start: u32, end: u32, time_elapsed: 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/03_ticket_v1/03_modules/src/lib.rs:12:8 [INFO] [stdout] | [INFO] [stdout] 12 | 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_v1/03_modules/src/lib.rs:19:8 [INFO] [stdout] | [INFO] [stdout] 18 | impl Ticket { [INFO] [stdout] | ----------- associated function in this implementation [INFO] [stdout] 19 | fn new(title: String, description: String, status: String) -> Ticket { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `create_todo_ticket` is never used [INFO] [stdout] --> exercises/03_ticket_v1/03_modules/src/lib.rs:7:8 [INFO] [stdout] | [INFO] [stdout] 7 | fn create_todo_ticket(title: String, description: String) -> Ticket { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking intro_03 v0.1.0 (/opt/rustwide/workdir/exercises/04_traits/00_intro) [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `title`, `description`, and `status` are never read [INFO] [stdout] --> exercises/03_ticket_v1/10_references_in_memory/src/lib.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 1 | pub struct Ticket { [INFO] [stdout] | ------ fields in this struct [INFO] [stdout] 2 | title: String, [INFO] [stdout] | ^^^^^ [INFO] [stdout] 3 | description: String, [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] 4 | status: String, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking for_ v0.1.0 (/opt/rustwide/workdir/exercises/02_basic_calculator/07_for) [INFO] [stderr] Checking assoc_vs_generic v0.1.0 (/opt/rustwide/workdir/exercises/04_traits/09_assoc_vs_generic) [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `RefMut` [INFO] [stdout] --> exercises/07_threads/06_interior_mutability/src/lib.rs:4:26 [INFO] [stdout] | [INFO] [stdout] 4 | use std::cell::{RefCell, RefMut}; [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Ticket` is never constructed [INFO] [stdout] --> exercises/03_ticket_v1/04_visibility/src/lib.rs:2:16 [INFO] [stdout] | [INFO] [stdout] 2 | pub struct Ticket { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `a` [INFO] [stdout] --> exercises/07_threads/06_interior_mutability/src/lib.rs:41:17 [INFO] [stdout] | [INFO] [stdout] 41 | let a = DropTracker::new(5, Rc::clone(&counter)); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_a` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `b` [INFO] [stdout] --> exercises/07_threads/06_interior_mutability/src/lib.rs:42:17 [INFO] [stdout] | [INFO] [stdout] 42 | let b = DropTracker::new(6, Rc::clone(&counter)); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_b` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `value` is never read [INFO] [stdout] --> exercises/07_threads/06_interior_mutability/src/lib.rs:9:5 [INFO] [stdout] | [INFO] [stdout] 8 | pub struct DropTracker { [INFO] [stdout] | ----------- field in this struct [INFO] [stdout] 9 | value: T, [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` 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: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `title`, `description`, and `status` are never read [INFO] [stdout] --> exercises/03_ticket_v1/10_references_in_memory/src/lib.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 1 | pub struct Ticket { [INFO] [stdout] | ------ fields in this struct [INFO] [stdout] 2 | title: String, [INFO] [stdout] | ^^^^^ [INFO] [stdout] 3 | description: String, [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] 4 | status: String, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking destructor v0.1.0 (/opt/rustwide/workdir/exercises/03_ticket_v1/11_destructor) [INFO] [stderr] Checking deps v0.1.0 (/opt/rustwide/workdir/exercises/05_ticket_v2/11_dependencies) [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking sized v0.1.0 (/opt/rustwide/workdir/exercises/04_traits/07_sized) [INFO] [stderr] Checking orphan v0.1.0 (/opt/rustwide/workdir/exercises/04_traits/02_orphan_rule) [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 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] Checking from v0.1.0 (/opt/rustwide/workdir/exercises/04_traits/08_from) [INFO] [stdout] warning: trait `Power` is never used [INFO] [stdout] --> exercises/04_traits/09_assoc_vs_generic/src/lib.rs:47:7 [INFO] [stdout] | [INFO] [stdout] 47 | trait Power { [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait `PowerAsso` is never used [INFO] [stdout] --> exercises/04_traits/09_assoc_vs_generic/src/lib.rs:74:7 [INFO] [stdout] | [INFO] [stdout] 74 | trait PowerAsso { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking saturating v0.1.0 (/opt/rustwide/workdir/exercises/02_basic_calculator/09_saturating) [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking trait_ v0.1.0 (/opt/rustwide/workdir/exercises/04_traits/01_trait) [INFO] [stderr] Checking outro_04 v0.1.0 (/opt/rustwide/workdir/exercises/05_ticket_v2/15_outro) [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking match_ v0.1.0 (/opt/rustwide/workdir/exercises/05_ticket_v2/02_match) [INFO] [stderr] Checking threads v0.1.0 (/opt/rustwide/workdir/exercises/07_threads/01_threads) [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: unused variable: `wrapping` [INFO] [stdout] --> exercises/04_traits/08_from/src/lib.rs:16:9 [INFO] [stdout] | [INFO] [stdout] 16 | 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/08_from/src/lib.rs:17:9 [INFO] [stdout] | [INFO] [stdout] 17 | 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/08_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/08_from/src/lib.rs:15:4 [INFO] [stdout] | [INFO] [stdout] 15 | fn example() { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking if_let v0.1.0 (/opt/rustwide/workdir/exercises/05_ticket_v2/04_if_let) [INFO] [stderr] Checking stack v0.1.0 (/opt/rustwide/workdir/exercises/03_ticket_v1/08_stack) [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking vec v0.1.0 (/opt/rustwide/workdir/exercises/06_ticket_management/02_vec) [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:11:12 [INFO] [stdout] | [INFO] [stdout] 9 | impl Shape { [INFO] [stdout] | ---------- method in this implementation [INFO] [stdout] 10 | // TODO: Implement the `n_sides` method using a `match`. [INFO] [stdout] 11 | pub fn n_sides(&self) -> u8 { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking clone v0.1.0 (/opt/rustwide/workdir/exercises/04_traits/10_clone) [INFO] [stderr] Checking sync v0.1.0 (/opt/rustwide/workdir/exercises/07_threads/14_sync) [INFO] [stderr] Checking factorial v0.1.0 (/opt/rustwide/workdir/exercises/02_basic_calculator/05_factorial) [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: 1 warning emitted [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)]` 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] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking overloading v0.1.0 (/opt/rustwide/workdir/exercises/04_traits/03_operator_overloading) [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: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait `IsEven` is never used [INFO] [stdout] --> exercises/04_traits/01_trait/src/lib.rs:38:7 [INFO] [stdout] | [INFO] [stdout] 38 | trait IsEven { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [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: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking encapsulation v0.1.0 (/opt/rustwide/workdir/exercises/03_ticket_v1/05_encapsulation) [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: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Ticket` is never constructed [INFO] [stdout] --> exercises/03_ticket_v1/03_modules/src/lib.rs:12:8 [INFO] [stdout] | [INFO] [stdout] 12 | 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_v1/03_modules/src/lib.rs:19:8 [INFO] [stdout] | [INFO] [stdout] 18 | impl Ticket { [INFO] [stdout] | ----------- associated function in this implementation [INFO] [stdout] 19 | fn new(title: String, description: String, status: String) -> Ticket { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `create_todo_ticket` is never used [INFO] [stdout] --> exercises/03_ticket_v1/03_modules/src/lib.rs:7:8 [INFO] [stdout] | [INFO] [stdout] 7 | fn create_todo_ticket(title: String, description: String) -> Ticket { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `is_even` is never used [INFO] [stdout] --> exercises/02_basic_calculator/03_if_else/src/lib.rs:2:4 [INFO] [stdout] | [INFO] [stdout] 2 | fn is_even(n: u32) -> bool { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `wrapping` [INFO] [stdout] --> exercises/04_traits/08_from/src/lib.rs:16:9 [INFO] [stdout] | [INFO] [stdout] 16 | 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/08_from/src/lib.rs:17:9 [INFO] [stdout] | [INFO] [stdout] 17 | 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/08_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/08_from/src/lib.rs:15:4 [INFO] [stdout] | [INFO] [stdout] 15 | fn example() { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking drop v0.1.0 (/opt/rustwide/workdir/exercises/04_traits/12_drop) [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking intro_01 v0.1.0 (/opt/rustwide/workdir/exercises/02_basic_calculator/00_intro) [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: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `bomb` [INFO] [stdout] --> exercises/04_traits/12_drop/src/lib.rs:39:13 [INFO] [stdout] | [INFO] [stdout] 39 | let bomb = DropBomb::new(); [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_bomb` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `RefMut` [INFO] [stdout] --> exercises/07_threads/06_interior_mutability/src/lib.rs:4:26 [INFO] [stdout] | [INFO] [stdout] 4 | use std::cell::{RefCell, RefMut}; [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `value` is never read [INFO] [stdout] --> exercises/07_threads/06_interior_mutability/src/lib.rs:9:5 [INFO] [stdout] | [INFO] [stdout] 8 | pub struct DropTracker { [INFO] [stdout] | ----------- field in this struct [INFO] [stdout] 9 | value: T, [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `factorial` is never used [INFO] [stdout] --> exercises/02_basic_calculator/05_factorial/src/lib.rs:13:4 [INFO] [stdout] | [INFO] [stdout] 13 | fn factorial(n: u32) -> u32 { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `intro` is never used [INFO] [stdout] --> exercises/02_basic_calculator/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: `#[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] [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: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `message` [INFO] [stdout] --> exercises/05_ticket_v2/08_error_enums/src/lib.rs:35:32 [INFO] [stdout] | [INFO] [stdout] 35 | DescriptionError { message } => { [INFO] [stdout] | ^^^^^^^ help: try ignoring the field: `message: _` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `price` is never read [INFO] [stdout] --> exercises/03_ticket_v1/01_struct/src/lib.rs:9:5 [INFO] [stdout] | [INFO] [stdout] 8 | struct Order { [INFO] [stdout] | ----- field in this struct [INFO] [stdout] 9 | price: u32, [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `TicketNewError` is never used [INFO] [stdout] --> exercises/05_ticket_v2/08_error_enums/src/lib.rs:6:6 [INFO] [stdout] | [INFO] [stdout] 6 | enum TicketNewError { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [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:46:8 [INFO] [stdout] | [INFO] [stdout] 46 | struct Ticket { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `Status` is never used [INFO] [stdout] --> exercises/05_ticket_v2/08_error_enums/src/lib.rs:53:6 [INFO] [stdout] | [INFO] [stdout] 53 | enum Status { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `new` is never used [INFO] [stdout] --> exercises/05_ticket_v2/08_error_enums/src/lib.rs:60:12 [INFO] [stdout] | [INFO] [stdout] 59 | impl Ticket { [INFO] [stdout] | ----------- associated function in this implementation [INFO] [stdout] 60 | pub fn new( [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `easy_ticket` is never used [INFO] [stdout] --> exercises/05_ticket_v2/07_unwrap/src/lib.rs:4:4 [INFO] [stdout] | [INFO] [stdout] 4 | fn easy_ticket(title: String, description: String, status: Status) -> Ticket { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 6 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Ticket` is never constructed [INFO] [stdout] --> exercises/05_ticket_v2/07_unwrap/src/lib.rs:36:8 [INFO] [stdout] | [INFO] [stdout] 36 | struct Ticket { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `Status` is never used [INFO] [stdout] --> exercises/05_ticket_v2/07_unwrap/src/lib.rs:43:6 [INFO] [stdout] | [INFO] [stdout] 43 | enum Status { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `new` is never used [INFO] [stdout] --> exercises/05_ticket_v2/07_unwrap/src/lib.rs:50:12 [INFO] [stdout] | [INFO] [stdout] 49 | impl Ticket { [INFO] [stdout] | ----------- associated function in this implementation [INFO] [stdout] 50 | pub fn new(title: String, description: String, status: Status) -> Result { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `status` is never read [INFO] [stdout] --> exercises/04_traits/06_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: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Ticket` is never constructed [INFO] [stdout] --> exercises/05_ticket_v2/05_nullability/src/lib.rs:4:8 [INFO] [stdout] | [INFO] [stdout] 4 | struct Ticket { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `Status` is never used [INFO] [stdout] --> exercises/05_ticket_v2/05_nullability/src/lib.rs:11:6 [INFO] [stdout] | [INFO] [stdout] 11 | enum Status { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `new` and `assigned_to` are never used [INFO] [stdout] --> exercises/05_ticket_v2/05_nullability/src/lib.rs:18:12 [INFO] [stdout] | [INFO] [stdout] 17 | impl Ticket { [INFO] [stdout] | ----------- associated items in this implementation [INFO] [stdout] 18 | pub fn new(title: String, description: String, status: Status) -> Ticket { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 38 | pub fn assigned_to(&self) -> Option<&String> { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `defuse` is never used [INFO] [stdout] --> exercises/04_traits/12_drop/src/lib.rs:18:8 [INFO] [stdout] | [INFO] [stdout] 10 | impl DropBomb { [INFO] [stdout] | ------------- method in this implementation [INFO] [stdout] ... [INFO] [stdout] 18 | fn defuse(&mut self) { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling quote v1.0.36 [INFO] [stderr] Compiling syn v2.0.63 [INFO] [stderr] Checking num_cpus v1.16.0 [INFO] [stderr] Checking socket2 v0.5.7 [INFO] [stderr] Checking mio v0.8.11 [INFO] [stderr] Checking signal-hook-registry v1.4.2 [INFO] [stderr] Checking parking_lot v0.12.2 [INFO] [stderr] Compiling thiserror-impl v1.0.61 [INFO] [stderr] Compiling tokio-macros v2.2.0 [INFO] [stderr] Checking tokio v1.37.0 [INFO] [stderr] Checking ticket_fields v0.1.0 (/opt/rustwide/workdir/helpers/ticket_fields) [INFO] [stderr] Checking thiserror_ v0.1.0 (/opt/rustwide/workdir/exercises/05_ticket_v2/12_thiserror) [INFO] [stderr] Checking source v0.1.0 (/opt/rustwide/workdir/exercises/05_ticket_v2/14_source) [INFO] [stderr] Checking patch v0.1.0 (/opt/rustwide/workdir/exercises/07_threads/10_patch) [INFO] [stderr] Checking rwlock v0.1.0 (/opt/rustwide/workdir/exercises/07_threads/12_rw_lock) [INFO] [stderr] Checking client v0.1.0 (/opt/rustwide/workdir/exercises/07_threads/08_client) [INFO] [stderr] Checking without_channels v0.1.0 (/opt/rustwide/workdir/exercises/07_threads/13_without_channels) [INFO] [stderr] Checking response v0.1.0 (/opt/rustwide/workdir/exercises/07_threads/07_ack) [INFO] [stderr] Checking bounded v0.1.0 (/opt/rustwide/workdir/exercises/07_threads/09_bounded) [INFO] [stderr] Checking channels v0.1.0 (/opt/rustwide/workdir/exercises/07_threads/05_channels) [INFO] [stderr] Checking locks v0.1.0 (/opt/rustwide/workdir/exercises/07_threads/11_locks) [INFO] [stderr] Checking impl_trait v0.1.0 (/opt/rustwide/workdir/exercises/06_ticket_management/08_impl_trait) [INFO] [stderr] Checking iterators v0.1.0 (/opt/rustwide/workdir/exercises/06_ticket_management/04_iterators) [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)]` 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: 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)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `TrySendError` [INFO] [stdout] --> exercises/07_threads/12_rw_lock/src/lib.rs:3:59 [INFO] [stdout] | [INFO] [stdout] 3 | use std::sync::mpsc::{sync_channel, Receiver, SyncSender, TrySendError}; [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `Mutex` [INFO] [stdout] --> exercises/07_threads/12_rw_lock/src/lib.rs:4:22 [INFO] [stdout] | [INFO] [stdout] 4 | use std::sync::{Arc, Mutex, RwLock}; [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `Mutex` [INFO] [stdout] --> exercises/07_threads/12_rw_lock/src/store.rs:3:22 [INFO] [stdout] | [INFO] [stdout] 3 | use std::sync::{Arc, Mutex, RwLock}; [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::cell::RefCell` [INFO] [stdout] --> exercises/07_threads/07_ack/src/lib.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::cell::RefCell; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [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: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [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 `TicketStoreClient::new` [INFO] [stdout] --> exercises/07_threads/08_client/src/lib.rs:16:5 [INFO] [stdout] | [INFO] [stdout] 16 | pub fn new(server_sender: Sender) -> TicketStoreClient { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ associated function `TicketStoreClient::new` 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/08_client/src/lib.rs:57:1 [INFO] [stdout] | [INFO] [stdout] 57 | enum Command { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] = note: `#[warn(private_interfaces)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `rwlock` (lib) due to 2 previous errors; 4 warnings emitted [INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> exercises/07_threads/12_rw_lock/src/lib.rs:37:12 [INFO] [stdout] | [INFO] [stdout] 30 | let (response_sender, response_receiver) = sync_channel(1); [INFO] [stdout] | --------------- ----------------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] | | [INFO] [stdout] | these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 37 | Ok(response_receiver.recv().unwrap()) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this changes meaning in Rust 2024 [INFO] [stdout] = note: for more information, see issue #123739 [INFO] [stdout] = note: requested on the command line with `-D tail-expr-drop-order` [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] error: aborting due to 1 previous error; 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: type `Command` is more private than the item `server` [INFO] [stdout] --> exercises/07_threads/08_client/src/lib.rs:68:1 [INFO] [stdout] | [INFO] [stdout] 68 | 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/08_client/src/lib.rs:57:1 [INFO] [stdout] | [INFO] [stdout] 57 | enum Command { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::cell::RefCell` [INFO] [stdout] --> exercises/07_threads/07_ack/src/lib.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::cell::RefCell; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::iter::Filter` [INFO] [stdout] --> exercises/06_ticket_management/08_impl_trait/src/lib.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::iter::Filter; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::slice::Iter` [INFO] [stdout] --> exercises/06_ticket_management/08_impl_trait/src/lib.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 2 | use std::slice::Iter; [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `TrySendError` [INFO] [stdout] --> exercises/07_threads/11_locks/src/lib.rs:4:59 [INFO] [stdout] | [INFO] [stdout] 4 | use std::sync::mpsc::{sync_channel, Receiver, SyncSender, TrySendError}; [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` 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] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [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: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/09_bounded/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 `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] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> exercises/07_threads/11_locks/src/lib.rs:38:12 [INFO] [stdout] | [INFO] [stdout] 31 | let (response_sender, response_receiver) = sync_channel(1); [INFO] [stdout] | --------------- ----------------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] | | [INFO] [stdout] | these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 38 | Ok(response_receiver.recv().unwrap()) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this changes meaning in Rust 2024 [INFO] [stdout] = note: for more information, see issue #123739 [INFO] [stdout] = note: requested on the command line with `-D tail-expr-drop-order` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 1 previous error; 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `locks` (lib) due to 2 previous errors; 2 warnings emitted [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 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: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "4b5b7c002527999a64240c53d3612d6c4410f739c4130d4d9a157e9b8db8a2d0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4b5b7c002527999a64240c53d3612d6c4410f739c4130d4d9a157e9b8db8a2d0", kill_on_drop: false }` [INFO] [stdout] 4b5b7c002527999a64240c53d3612d6c4410f739c4130d4d9a157e9b8db8a2d0