[INFO] cloning repository https://github.com/senmeannrealwat/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/senmeannrealwat/100-exercises-to-learn-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsenmeannrealwat%2F100-exercises-to-learn-rust", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsenmeannrealwat%2F100-exercises-to-learn-rust'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 51929b122d3c5b5297d68febe18b2d4e739b27fb [INFO] checking senmeannrealwat/100-exercises-to-learn-rust against try#93086cfebfccb79083c59d0d3b2052944bba643c for pr-146440-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsenmeannrealwat%2F100-exercises-to-learn-rust" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/senmeannrealwat/100-exercises-to-learn-rust [INFO] finished tweaking git repo https://github.com/senmeannrealwat/100-exercises-to-learn-rust [INFO] tweaked toml for git repo https://github.com/senmeannrealwat/100-exercises-to-learn-rust written to /workspace/builds/worker-7-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/senmeannrealwat/100-exercises-to-learn-rust 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/senmeannrealwat/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" "+93086cfebfccb79083c59d0d3b2052944bba643c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] f1cde6ab92ca6bfbe7120ee426e10f819094f434a4213be6fba0e9e8d0e36a5a [INFO] running `Command { std: "docker" "start" "-a" "f1cde6ab92ca6bfbe7120ee426e10f819094f434a4213be6fba0e9e8d0e36a5a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "f1cde6ab92ca6bfbe7120ee426e10f819094f434a4213be6fba0e9e8d0e36a5a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f1cde6ab92ca6bfbe7120ee426e10f819094f434a4213be6fba0e9e8d0e36a5a", kill_on_drop: false }` [INFO] [stdout] f1cde6ab92ca6bfbe7120ee426e10f819094f434a4213be6fba0e9e8d0e36a5a [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] f3c4cfa197ed0645840148c62ef1e838698902e3b0bb933ff05f19636aa2b764 [INFO] running `Command { std: "docker" "start" "-a" "f3c4cfa197ed0645840148c62ef1e838698902e3b0bb933ff05f19636aa2b764", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.86 [INFO] [stderr] Compiling thiserror v1.0.64 [INFO] [stderr] Checking common v0.1.0 (/opt/rustwide/workdir/helpers/common) [INFO] [stderr] Compiling libc v0.2.155 [INFO] [stderr] Checking bytes v1.7.1 [INFO] [stderr] Checking itoa v1.0.11 [INFO] [stderr] Compiling serde v1.0.204 [INFO] [stderr] Compiling byteorder v1.5.0 [INFO] [stderr] Compiling cfg-if v1.0.0 [INFO] [stderr] Compiling anyhow v1.0.89 [INFO] [stderr] Compiling siphasher v0.3.11 [INFO] [stderr] Compiling generic-array v0.14.7 [INFO] [stderr] Compiling unicase v2.7.0 [INFO] [stderr] Checking typenum v1.17.0 [INFO] [stderr] Checking aho-corasick v1.1.3 [INFO] [stderr] Checking bitflags v2.6.0 [INFO] [stderr] Checking regex-syntax v0.8.4 [INFO] [stderr] Compiling crossbeam-utils v0.8.20 [INFO] [stderr] Checking tinyvec v1.8.0 [INFO] [stderr] Checking percent-encoding v2.3.1 [INFO] [stderr] 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[INFO] [stderr] Compiling ucd-trie v0.1.6 [INFO] [stderr] Checking rand_core v0.6.4 [INFO] [stderr] Checking anstyle-query v1.1.1 [INFO] [stderr] Checking futf v0.1.5 [INFO] [stderr] Compiling quote v1.0.36 [INFO] [stderr] Checking anstream v0.6.15 [INFO] [stderr] Checking unicode-normalization v0.1.23 [INFO] [stderr] Compiling syn v2.0.72 [INFO] [stderr] Checking same-file v1.0.6 [INFO] [stderr] Checking precomputed-hash v0.1.1 [INFO] [stderr] Checking indexmap v2.3.0 [INFO] [stderr] Checking tracing v0.1.40 [INFO] [stderr] Checking phf v0.11.2 [INFO] [stderr] Checking walkdir v2.5.0 [INFO] [stderr] Checking tendril v0.4.3 [INFO] [stderr] Checking http v1.1.0 [INFO] [stderr] Checking inotify-sys v0.1.5 [INFO] [stderr] Compiling num-traits v0.2.19 [INFO] [stderr] Checking data-encoding v2.6.0 [INFO] [stderr] Checking clap_lex v0.7.2 [INFO] [stderr] Compiling mime_guess v2.0.5 [INFO] [stderr] Checking headers-core v0.2.0 [INFO] [stderr] Checking http-body v0.4.6 [INFO] [stderr] Checking inotify v0.9.6 [INFO] [stderr] Checking crossbeam-epoch v0.9.18 [INFO] [stderr] Checking crossbeam-channel v0.5.13 [INFO] [stderr] Checking idna v0.5.0 [INFO] [stderr] Checking crypto-common v0.1.6 [INFO] [stderr] Checking block-buffer v0.10.4 [INFO] [stderr] Checking mio v0.8.11 [INFO] [stderr] Checking filetime v0.2.23 [INFO] [stderr] Checking futures-channel v0.3.30 [INFO] [stderr] Compiling pulldown-cmark v0.10.3 [INFO] [stderr] Checking crossbeam-deque v0.8.5 [INFO] [stderr] Checking digest v0.10.7 [INFO] [stderr] Checking scoped-tls v1.0.1 [INFO] [stderr] Checking iana-time-zone v0.1.60 [INFO] [stderr] Checking maplit v1.0.2 [INFO] [stderr] Compiling semver v1.0.23 [INFO] [stderr] Checking fastrand v2.1.0 [INFO] [stderr] Checking regex-automata v0.4.7 [INFO] [stderr] Checking pulldown-cmark-escape v0.10.1 [INFO] [stderr] Checking humantime v2.1.0 [INFO] [stderr] Checking shlex v1.3.0 [INFO] [stderr] Checking notify v6.1.1 [INFO] [stderr] Checking topological-sort v0.2.2 [INFO] [stderr] Checking pathdiff v0.2.1 [INFO] [stderr] Compiling pulldown-cmark v0.11.0 [INFO] [stderr] Checking unicode-width v0.1.13 [INFO] [stderr] Checking pulldown-cmark-escape v0.11.0 [INFO] [stderr] Checking url v2.5.2 [INFO] [stderr] Checking sha1 v0.10.6 [INFO] [stderr] Checking either v1.13.0 [INFO] [stderr] Checking packages v0.1.0 (/opt/rustwide/workdir/exercises/05_ticket_v2/10_packages) [INFO] [stderr] Checking outro_03 v0.1.0 (/opt/rustwide/workdir/exercises/04_traits/14_outro) [INFO] [stderr] Checking getopts v0.2.21 [INFO] [stderr] Checking notify-debouncer-mini v0.4.1 [INFO] [stderr] Checking headers v0.3.9 [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] [stdout] warning: variants `InProgress` and `Done` are never constructed [INFO] [stdout] --> exercises/05_ticket_v2/09_error_trait/src/lib.rs:53:5 [INFO] [stdout] | [INFO] [stdout] 51 | enum Status { [INFO] [stdout] | ------ variants in this enum [INFO] [stdout] 52 | ToDo, [INFO] [stdout] 53 | InProgress { assigned_to: String }, [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] 54 | 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 deps v0.1.0 (/opt/rustwide/workdir/exercises/05_ticket_v2/11_dependencies) [INFO] [stderr] Checking itertools v0.13.0 [INFO] [stderr] Checking variants_with_data v0.1.0 (/opt/rustwide/workdir/exercises/05_ticket_v2/03_variants_with_data) [INFO] [stderr] Checking enum_ v0.1.0 (/opt/rustwide/workdir/exercises/05_ticket_v2/01_enum) [INFO] [stderr] Checking setters v0.1.0 (/opt/rustwide/workdir/exercises/03_ticket_v1/07_setters) [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 fallibility v0.1.0 (/opt/rustwide/workdir/exercises/05_ticket_v2/06_fallibility) [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 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 str_slice v0.1.0 (/opt/rustwide/workdir/exercises/04_traits/06_str_slice) [INFO] [stderr] Checking validation v0.1.0 (/opt/rustwide/workdir/exercises/03_ticket_v1/02_validation) [INFO] [stderr] Checking error_enums v0.1.0 (/opt/rustwide/workdir/exercises/05_ticket_v2/08_error_enums) [INFO] [stdout] warning: variants `InProgress` and `Done` are never constructed [INFO] [stdout] --> exercises/05_ticket_v2/06_fallibility/src/lib.rs:14:5 [INFO] [stdout] | [INFO] [stdout] 12 | enum Status { [INFO] [stdout] | ------ variants in this enum [INFO] [stdout] 13 | ToDo, [INFO] [stdout] 14 | InProgress { assigned_to: String }, [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] 15 | Done, [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Status` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [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_v2/07_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] [stdout] warning: fields `title`, `description`, and `status` are never read [INFO] [stdout] --> exercises/03_ticket_v1/02_validation/src/lib.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 3 | struct Ticket { [INFO] [stdout] | ------ fields in this struct [INFO] [stdout] 4 | title: String, [INFO] [stdout] | ^^^^^ [INFO] [stdout] 5 | description: String, [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] 6 | 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] Checking resizing v0.1.0 (/opt/rustwide/workdir/exercises/06_ticket_management/03_resizing) [INFO] [stderr] Checking vec v0.1.0 (/opt/rustwide/workdir/exercises/06_ticket_management/02_vec) [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:36:5 [INFO] [stdout] | [INFO] [stdout] 34 | enum Status { [INFO] [stdout] | ------ variants in this enum [INFO] [stdout] 35 | ToDo, [INFO] [stdout] 36 | InProgress { assigned_to: String }, [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] 37 | Done, [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Status` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `new`, `title`, `description`, and `status` are never used [INFO] [stdout] --> exercises/05_ticket_v2/01_enum/src/lib.rs: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] 42 | pub fn title(&self) -> &String { [INFO] [stdout] | ^^^^^ [INFO] [stdout] ... [INFO] [stdout] 46 | pub fn description(&self) -> &String { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 50 | 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 static v0.1.0 (/opt/rustwide/workdir/exercises/07_threads/02_static) [INFO] [stderr] Checking overflow v0.1.0 (/opt/rustwide/workdir/exercises/02_basic_calculator/08_overflow) [INFO] [stderr] Checking derives v0.1.0 (/opt/rustwide/workdir/exercises/04_traits/04_derive) [INFO] [stdout] warning: function `easy_ticket` is never used [INFO] [stdout] --> exercises/05_ticket_v2/07_unwrap/src/lib.rs:4:4 [INFO] [stdout] | [INFO] [stdout] 4 | fn easy_ticket(title: String, description: String, status: Status) -> Ticket { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking chrono v0.4.38 [INFO] [stdout] warning: struct `Ticket` is never constructed [INFO] [stdout] --> exercises/05_ticket_v2/07_unwrap/src/lib.rs:18:8 [INFO] [stdout] | [INFO] [stdout] 18 | struct Ticket { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `Status` is never used [INFO] [stdout] --> exercises/05_ticket_v2/07_unwrap/src/lib.rs:25:6 [INFO] [stdout] | [INFO] [stdout] 25 | enum Status { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Ticket` is never constructed [INFO] [stdout] --> exercises/05_ticket_v2/01_enum/src/lib.rs:7:8 [INFO] [stdout] | [INFO] [stdout] 7 | struct Ticket { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `Status` is never used [INFO] [stdout] --> exercises/05_ticket_v2/01_enum/src/lib.rs:14:6 [INFO] [stdout] | [INFO] [stdout] 14 | enum Status { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `new` is never used [INFO] [stdout] --> exercises/05_ticket_v2/07_unwrap/src/lib.rs:32:12 [INFO] [stdout] | [INFO] [stdout] 31 | impl Ticket { [INFO] [stdout] | ----------- associated function in this implementation [INFO] [stdout] 32 | pub fn new(title: String, description: String, status: Status) -> Result { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 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] 42 | pub fn title(&self) -> &String { [INFO] [stdout] | ^^^^^ [INFO] [stdout] ... [INFO] [stdout] 46 | pub fn description(&self) -> &String { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 50 | pub fn status(&self) -> &Status { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking trait_bounds v0.1.0 (/opt/rustwide/workdir/exercises/04_traits/05_trait_bounds) [INFO] [stderr] Checking deref v0.1.0 (/opt/rustwide/workdir/exercises/04_traits/07_deref) [INFO] [stderr] Checking threads v0.1.0 (/opt/rustwide/workdir/exercises/07_threads/01_threads) [INFO] [stdout] error: struct `Ticket` is never constructed [INFO] [stdout] --> exercises/04_traits/07_deref/src/lib.rs:7:12 [INFO] [stdout] | [INFO] [stdout] 7 | 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: field `status` is never read [INFO] [stdout] --> exercises/04_traits/07_deref/src/lib.rs:10:5 [INFO] [stdout] | [INFO] [stdout] 7 | pub struct Ticket { [INFO] [stdout] | ------ field in this struct [INFO] [stdout] ... [INFO] [stdout] 10 | status: String, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `deref` (lib) due to 1 previous error; 1 warning emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] warning: field `status` is never read [INFO] [stdout] --> exercises/04_traits/07_deref/src/lib.rs:10:5 [INFO] [stdout] | [INFO] [stdout] 7 | pub struct Ticket { [INFO] [stdout] | ------ field in this struct [INFO] [stdout] ... [INFO] [stdout] 10 | status: String, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "f3c4cfa197ed0645840148c62ef1e838698902e3b0bb933ff05f19636aa2b764", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f3c4cfa197ed0645840148c62ef1e838698902e3b0bb933ff05f19636aa2b764", kill_on_drop: false }` [INFO] [stdout] f3c4cfa197ed0645840148c62ef1e838698902e3b0bb933ff05f19636aa2b764