[INFO] cloning repository https://github.com/rakshithvk19/rust-exercises [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rakshithvk19/rust-exercises" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frakshithvk19%2Frust-exercises", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frakshithvk19%2Frust-exercises'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 8004b3757eda593121d1d55432ab6f026c7e5366 [INFO] testing rakshithvk19/rust-exercises/8004b3757eda593121d1d55432ab6f026c7e5366 against 1.86.0 for beta-1.87-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frakshithvk19%2Frust-exercises" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/rakshithvk19/rust-exercises on toolchain 1.86.0 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.86.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/rakshithvk19/rust-exercises [INFO] finished tweaking git repo https://github.com/rakshithvk19/rust-exercises [INFO] tweaked toml for git repo https://github.com/rakshithvk19/rust-exercises written to /workspace/builds/worker-6-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/rakshithvk19/rust-exercises already has a lockfile, it will not be regenerated [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.86.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Updating crates.io index [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded pulldown-cmark-to-cmark v15.0.1 [INFO] [stderr] Downloaded opener v0.7.1 [INFO] [stderr] Downloaded clap_complete v4.5.12 [INFO] [stderr] Downloaded pulldown-cmark-escape v0.10.1 [INFO] [stderr] Downloaded pulldown-cmark v0.10.3 [INFO] [stderr] Downloaded pulldown-cmark v0.11.0 [INFO] [stderr] Downloaded elasticlunr-rs v3.0.2 [INFO] [stderr] Downloaded mdbook v0.4.40 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" 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acbe67fb6e9bf518077a82c0d735b07ffceb37841ecbc800a09b13f8f4dbd1a1 [INFO] running `Command { std: "docker" "start" "-a" "acbe67fb6e9bf518077a82c0d735b07ffceb37841ecbc800a09b13f8f4dbd1a1", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.93 [INFO] [stderr] Compiling unicode-ident v1.0.12 [INFO] [stderr] Compiling cfg-if v1.0.0 [INFO] [stderr] Compiling libc v0.2.155 [INFO] [stderr] Compiling autocfg v1.3.0 [INFO] [stderr] Compiling thiserror v1.0.63 [INFO] [stderr] Compiling parking_lot_core v0.9.10 [INFO] [stderr] Compiling smallvec v1.13.2 [INFO] [stderr] Compiling bytes v1.7.1 [INFO] [stderr] Compiling scopeguard v1.2.0 [INFO] [stderr] Compiling memchr v2.7.4 [INFO] [stderr] Compiling version_check v0.9.5 [INFO] [stderr] Compiling pin-project-lite v0.2.14 [INFO] [stderr] Compiling log v0.4.22 [INFO] [stderr] Compiling common v0.1.0 (/opt/rustwide/workdir/helpers/common) [INFO] [stderr] Compiling itoa v1.0.11 [INFO] [stderr] Compiling once_cell v1.19.0 [INFO] [stderr] 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base64 v0.21.7 [INFO] [stderr] Compiling pulldown-cmark v0.10.3 [INFO] [stderr] Compiling tower-service v0.3.2 [INFO] [stderr] Compiling crossbeam-deque v0.8.5 [INFO] [stderr] Compiling scoped-tls v1.0.1 [INFO] [stderr] Compiling maplit v1.0.2 [INFO] [stderr] Compiling fastrand v2.1.0 [INFO] [stderr] Compiling semver v1.0.23 [INFO] [stderr] Compiling humantime v2.1.0 [INFO] [stderr] Compiling notify v6.1.1 [INFO] [stderr] Compiling headers v0.3.9 [INFO] [stderr] Compiling iana-time-zone v0.1.60 [INFO] [stderr] Compiling pulldown-cmark-escape v0.10.1 [INFO] [stderr] Compiling topological-sort v0.2.2 [INFO] [stderr] Compiling notify-debouncer-mini v0.4.1 [INFO] [stderr] Compiling pulldown-cmark v0.11.0 [INFO] [stderr] Compiling unicode-width v0.1.13 [INFO] [stderr] Compiling pathdiff v0.2.1 [INFO] [stderr] Compiling shlex v1.3.0 [INFO] [stderr] Compiling thiserror v2.0.11 [INFO] [stderr] Compiling pulldown-cmark-escape v0.11.0 [INFO] [stderr] Compiling getopts v0.2.21 [INFO] [stderr] Compiling terminal_size v0.3.0 [INFO] [stderr] Compiling chrono v0.4.38 [INFO] [stderr] Compiling tempfile v3.11.0 [INFO] [stderr] Compiling clap_builder v4.5.13 [INFO] [stderr] Compiling either v1.13.0 [INFO] [stderr] Compiling packages v0.1.0 (/opt/rustwide/workdir/exercises/05_ticket_v2/10_packages) [INFO] [stderr] Compiling deps v0.1.0 (/opt/rustwide/workdir/exercises/05_ticket_v2/11_dependencies) [INFO] [stdout] warning: unused import: `anyhow::Error` [INFO] [stdout] --> exercises/05_ticket_v2/11_dependencies/src/lib.rs:6:5 [INFO] [stdout] | [INFO] [stdout] 6 | use anyhow::Error; [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling stack v0.1.0 (/opt/rustwide/workdir/exercises/03_ticket_v1/08_stack) [INFO] [stderr] Compiling heap v0.1.0 (/opt/rustwide/workdir/exercises/03_ticket_v1/09_heap) [INFO] [stderr] Compiling validation v0.1.0 (/opt/rustwide/workdir/exercises/03_ticket_v1/02_validation) [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: 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:20:8 [INFO] [stdout] | [INFO] [stdout] 7 | impl Ticket { [INFO] [stdout] | ----------- associated function in this implementation [INFO] [stdout] ... [INFO] [stdout] 20 | fn new(title: String, description: String, status: String) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling overflow v0.1.0 (/opt/rustwide/workdir/exercises/02_basic_calculator/08_overflow) [INFO] [stderr] Compiling variables v0.1.0 (/opt/rustwide/workdir/exercises/02_basic_calculator/02_variables) [INFO] [stderr] Compiling from v0.1.0 (/opt/rustwide/workdir/exercises/04_traits/09_from) [INFO] [stderr] Compiling error_trait v0.1.0 (/opt/rustwide/workdir/exercises/05_ticket_v2/09_error_trait) [INFO] [stderr] Compiling itertools v0.13.0 [INFO] [stdout] warning: unused variable: `wrapping` [INFO] [stdout] --> exercises/04_traits/09_from/src/lib.rs:12:9 [INFO] [stdout] | [INFO] [stdout] 12 | let wrapping: WrappingU32 = 42.into(); [INFO] [stdout] | ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_wrapping` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `wrapping` [INFO] [stdout] --> exercises/04_traits/09_from/src/lib.rs:13:9 [INFO] [stdout] | [INFO] [stdout] 13 | let wrapping = WrappingU32::from(42); [INFO] [stdout] | ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_wrapping` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `value` is never read [INFO] [stdout] --> exercises/04_traits/09_from/src/lib.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 3 | pub struct WrappingU32 { [INFO] [stdout] | ----------- field in this struct [INFO] [stdout] 4 | value: u32, [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `example` is never used [INFO] [stdout] --> exercises/04_traits/09_from/src/lib.rs:11:4 [INFO] [stdout] | [INFO] [stdout] 11 | fn example() { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling drop v0.1.0 (/opt/rustwide/workdir/exercises/04_traits/13_drop) [INFO] [stderr] Compiling intro_01 v0.1.0 (/opt/rustwide/workdir/exercises/02_basic_calculator/00_intro) [INFO] [stdout] warning: unused variable: `msg` [INFO] [stdout] --> exercises/05_ticket_v2/09_error_trait/src/lib.rs:31:46 [INFO] [stdout] | [INFO] [stdout] 31 | Err(TicketNewError::DescriptionError(msg)) => Ticket { [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_msg` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `TicketNewError` is never used [INFO] [stdout] --> exercises/05_ticket_v2/09_error_trait/src/lib.rs:8:6 [INFO] [stdout] | [INFO] [stdout] 8 | 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:28:4 [INFO] [stdout] | [INFO] [stdout] 28 | fn easy_ticket(title: String, description: String, status: Status) -> Ticket { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Ticket` is never constructed [INFO] [stdout] --> exercises/05_ticket_v2/09_error_trait/src/lib.rs:41:8 [INFO] [stdout] | [INFO] [stdout] 41 | struct Ticket { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `Status` is never used [INFO] [stdout] --> exercises/05_ticket_v2/09_error_trait/src/lib.rs:48:6 [INFO] [stdout] | [INFO] [stdout] 48 | enum Status { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `new` is never used [INFO] [stdout] --> exercises/05_ticket_v2/09_error_trait/src/lib.rs:55:12 [INFO] [stdout] | [INFO] [stdout] 54 | impl Ticket { [INFO] [stdout] | ----------- associated function in this implementation [INFO] [stdout] 55 | pub fn new( [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [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] [stderr] Compiling saturating v0.1.0 (/opt/rustwide/workdir/exercises/02_basic_calculator/09_saturating) [INFO] [stderr] Compiling syntax v0.1.0 (/opt/rustwide/workdir/exercises/01_intro/01_syntax) [INFO] [stderr] Compiling references_in_memory v0.1.0 (/opt/rustwide/workdir/exercises/03_ticket_v1/10_references_in_memory) [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] [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] [stderr] Compiling panics v0.1.0 (/opt/rustwide/workdir/exercises/02_basic_calculator/04_panics) [INFO] [stderr] Compiling ownership v0.1.0 (/opt/rustwide/workdir/exercises/03_ticket_v1/06_ownership) [INFO] [stderr] Compiling enum_ v0.1.0 (/opt/rustwide/workdir/exercises/05_ticket_v2/01_enum) [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] error[E0119]: conflicting implementations of trait `Debug` for type `Status` [INFO] [stdout] --> exercises/05_ticket_v2/01_enum/src/lib.rs:7:10 [INFO] [stdout] | [INFO] [stdout] 4 | #[derive(Debug, PartialEq)] [INFO] [stdout] | ----- first implementation here [INFO] [stdout] ... [INFO] [stdout] 7 | #[derive(Debug, PartialEq, Copy, Clone)] [INFO] [stdout] | ^^^^^ conflicting implementation for `Status` [INFO] [stdout] | [INFO] [stdout] = note: this error originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0119]: conflicting implementations of trait `StructuralPartialEq` for type `Status` [INFO] [stdout] --> exercises/05_ticket_v2/01_enum/src/lib.rs:7:17 [INFO] [stdout] | [INFO] [stdout] 4 | #[derive(Debug, PartialEq)] [INFO] [stdout] | --------- first implementation here [INFO] [stdout] ... [INFO] [stdout] 7 | #[derive(Debug, PartialEq, Copy, Clone)] [INFO] [stdout] | ^^^^^^^^^ conflicting implementation for `Status` [INFO] [stdout] | [INFO] [stdout] = note: this error originates in the derive macro `PartialEq` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0119]: conflicting implementations of trait `PartialEq` for type `Status` [INFO] [stdout] --> exercises/05_ticket_v2/01_enum/src/lib.rs:7:17 [INFO] [stdout] | [INFO] [stdout] 4 | #[derive(Debug, PartialEq)] [INFO] [stdout] | --------- first implementation here [INFO] [stdout] ... [INFO] [stdout] 7 | #[derive(Debug, PartialEq, Copy, Clone)] [INFO] [stdout] | ^^^^^^^^^ conflicting implementation for `Status` [INFO] [stdout] | [INFO] [stdout] = note: this error originates in the derive macro `PartialEq` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling integers v0.1.0 (/opt/rustwide/workdir/exercises/02_basic_calculator/01_integers) [INFO] [stderr] Compiling tryfrom v0.1.0 (/opt/rustwide/workdir/exercises/05_ticket_v2/13_try_from) [INFO] [stdout] For more information about this error, try `rustc --explain E0119`. [INFO] [stdout] [INFO] [stderr] Compiling mut_slice v0.1.0 (/opt/rustwide/workdir/exercises/06_ticket_management/11_mutable_slices) [INFO] [stderr] error: could not compile `enum_` (lib) due to 3 previous errors [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] warning: function `squared` is never used [INFO] [stdout] --> exercises/06_ticket_management/11_mutable_slices/src/lib.rs:4:4 [INFO] [stdout] | [INFO] [stdout] 4 | fn squared(slice: &mut [i32]) { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [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] running `Command { std: "docker" "inspect" "acbe67fb6e9bf518077a82c0d735b07ffceb37841ecbc800a09b13f8f4dbd1a1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "acbe67fb6e9bf518077a82c0d735b07ffceb37841ecbc800a09b13f8f4dbd1a1", kill_on_drop: false }` [INFO] [stdout] acbe67fb6e9bf518077a82c0d735b07ffceb37841ecbc800a09b13f8f4dbd1a1