[INFO] cloning repository https://github.com/michavardy/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/michavardy/100-exercises-to-learn-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmichavardy%2F100-exercises-to-learn-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmichavardy%2F100-exercises-to-learn-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2f8ab2f03d3dd16fc0410169ff252a014c6d2b90
[INFO] testing michavardy/100-exercises-to-learn-rust against beta-2025-09-21 for beta-1.91-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmichavardy%2F100-exercises-to-learn-rust" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/michavardy/100-exercises-to-learn-rust
[INFO] finished tweaking git repo https://github.com/michavardy/100-exercises-to-learn-rust
[INFO] tweaked toml for git repo https://github.com/michavardy/100-exercises-to-learn-rust written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/michavardy/100-exercises-to-learn-rust on toolchain beta-2025-09-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/michavardy/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" "+beta-2025-09-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2c13667b348bc7c5cbc9b5f2258fcceb6e20413e624ea2bde29453a577a5cd29
[INFO] running `Command { std: "docker" "start" "-a" "2c13667b348bc7c5cbc9b5f2258fcceb6e20413e624ea2bde29453a577a5cd29", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2c13667b348bc7c5cbc9b5f2258fcceb6e20413e624ea2bde29453a577a5cd29", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2c13667b348bc7c5cbc9b5f2258fcceb6e20413e624ea2bde29453a577a5cd29", kill_on_drop: false }`
[INFO] [stdout] 2c13667b348bc7c5cbc9b5f2258fcceb6e20413e624ea2bde29453a577a5cd29
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fb8dae36b809722aae701ca2baaac5e9e3b692d3cda93d66420ef2ae88431c71
[INFO] running `Command { std: "docker" "start" "-a" "fb8dae36b809722aae701ca2baaac5e9e3b692d3cda93d66420ef2ae88431c71", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.82
[INFO] [stderr]    Compiling thiserror v1.0.60
[INFO] [stderr]    Compiling common v0.1.0 (/opt/rustwide/workdir/helpers/common)
[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]    Compiling smallvec v1.13.2
[INFO] [stderr]    Compiling pin-project-lite v0.2.14
[INFO] [stderr]    Compiling bytes v1.6.0
[INFO] [stderr]    Compiling anyhow v1.0.83
[INFO] [stderr]    Compiling 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_v1/05_encapsulation/src/lib.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 2 |     pub struct Ticket {
[INFO] [stdout]   |                ------ fields in this struct
[INFO] [stdout] 3 |         title: String,
[INFO] [stdout]   |         ^^^^^
[INFO] [stdout] 4 |         description: String,
[INFO] [stdout]   |         ^^^^^^^^^^^
[INFO] [stdout] 5 |         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]    Compiling error_enums v0.1.0 (/opt/rustwide/workdir/exercises/05_ticket_v2/08_error_enums)
[INFO] [stderr]    Compiling factorial v0.1.0 (/opt/rustwide/workdir/exercises/02_basic_calculator/05_factorial)
[INFO] [stdout] warning: function `factorial` is never used
[INFO] [stdout]   --> exercises/02_basic_calculator/05_factorial/src/lib.rs:12:4
[INFO] [stdout]    |
[INFO] [stdout] 12 | fn factorial(n: u32) -> u32{
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> exercises/05_ticket_v2/08_error_enums/src/lib.rs:35:24
[INFO] [stdout]    |
[INFO] [stdout] 35 |             return Err("Title cannot be empty".to_string());
[INFO] [stdout]    |                    --- ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected `TicketNewError`, found `String`
[INFO] [stdout]    |                    |
[INFO] [stdout]    |                    arguments to this enum variant are incorrect
[INFO] [stdout]    |
[INFO] [stdout] help: the type constructed contains `String` due to the type of the argument passed
[INFO] [stdout]   --> exercises/05_ticket_v2/08_error_enums/src/lib.rs:35:20
[INFO] [stdout]    |
[INFO] [stdout] 35 |             return Err("Title cannot be empty".to_string());
[INFO] [stdout]    |                    ^^^^-----------------------------------^
[INFO] [stdout]    |                        |
[INFO] [stdout]    |                        this argument influences the type of `Err`
[INFO] [stdout] note: tuple variant defined here
[INFO] [stdout]   --> /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/core/src/result.rs:559:5
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> exercises/05_ticket_v2/08_error_enums/src/lib.rs:38:24
[INFO] [stdout]    |
[INFO] [stdout] 38 |             return Err("Title cannot be longer than 50 characters".to_string());
[INFO] [stdout]    |                    --- ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected `TicketNewError`, found `String`
[INFO] [stdout]    |                    |
[INFO] [stdout]    |                    arguments to this enum variant are incorrect
[INFO] [stdout]    |
[INFO] [stdout] help: the type constructed contains `String` due to the type of the argument passed
[INFO] [stdout]   --> exercises/05_ticket_v2/08_error_enums/src/lib.rs:38:20
[INFO] [stdout]    |
[INFO] [stdout] 38 |             return Err("Title cannot be longer than 50 characters".to_string());
[INFO] [stdout]    |                    ^^^^-------------------------------------------------------^
[INFO] [stdout]    |                        |
[INFO] [stdout]    |                        this argument influences the type of `Err`
[INFO] [stdout] note: tuple variant defined here
[INFO] [stdout]   --> /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/core/src/result.rs:559:5
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> exercises/05_ticket_v2/08_error_enums/src/lib.rs:41:24
[INFO] [stdout]    |
[INFO] [stdout] 41 |             return Err("Description cannot be empty".to_string());
[INFO] [stdout]    |                    --- ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected `TicketNewError`, found `String`
[INFO] [stdout]    |                    |
[INFO] [stdout]    |                    arguments to this enum variant are incorrect
[INFO] [stdout]    |
[INFO] [stdout] help: the type constructed contains `String` due to the type of the argument passed
[INFO] [stdout]   --> exercises/05_ticket_v2/08_error_enums/src/lib.rs:41:20
[INFO] [stdout]    |
[INFO] [stdout] 41 |             return Err("Description cannot be empty".to_string());
[INFO] [stdout]    |                    ^^^^-----------------------------------------^
[INFO] [stdout]    |                        |
[INFO] [stdout]    |                        this argument influences the type of `Err`
[INFO] [stdout] note: tuple variant defined here
[INFO] [stdout]   --> /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/core/src/result.rs:559:5
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> exercises/05_ticket_v2/08_error_enums/src/lib.rs:44:24
[INFO] [stdout]    |
[INFO] [stdout] 44 |             return Err("Description cannot be longer than 500 characters".to_string());
[INFO] [stdout]    |                    --- ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected `TicketNewError`, found `String`
[INFO] [stdout]    |                    |
[INFO] [stdout]    |                    arguments to this enum variant are incorrect
[INFO] [stdout]    |
[INFO] [stdout] help: the type constructed contains `String` due to the type of the argument passed
[INFO] [stdout]   --> exercises/05_ticket_v2/08_error_enums/src/lib.rs:44:20
[INFO] [stdout]    |
[INFO] [stdout] 44 |             return Err("Description cannot be longer than 500 characters".to_string());
[INFO] [stdout]    |                    ^^^^--------------------------------------------------------------^
[INFO] [stdout]    |                        |
[INFO] [stdout]    |                        this argument influences the type of `Err`
[INFO] [stdout] note: tuple variant defined here
[INFO] [stdout]   --> /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/core/src/result.rs:559:5
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `title`
[INFO] [stdout]   --> exercises/05_ticket_v2/08_error_enums/src/lib.rs:10:16
[INFO] [stdout]    |
[INFO] [stdout] 10 | fn easy_ticket(title: String, description: String, status: Status) -> Ticket {
[INFO] [stdout]    |                ^^^^^ help: if this is intentional, prefix it with an underscore: `_title`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `description`
[INFO] [stdout]   --> exercises/05_ticket_v2/08_error_enums/src/lib.rs:10:31
[INFO] [stdout]    |
[INFO] [stdout] 10 | fn easy_ticket(title: String, description: String, status: Status) -> Ticket {
[INFO] [stdout]    |                               ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_description`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `status`
[INFO] [stdout]   --> exercises/05_ticket_v2/08_error_enums/src/lib.rs:10:52
[INFO] [stdout]    |
[INFO] [stdout] 10 | fn easy_ticket(title: String, description: String, status: Status) -> Ticket {
[INFO] [stdout]    |                                                    ^^^^^^ help: if this is intentional, prefix it with an underscore: `_status`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr]    Compiling modules v0.1.0 (/opt/rustwide/workdir/exercises/03_ticket_v1/03_modules)
[INFO] [stderr] error: could not compile `error_enums` (lib) due to 4 previous errors; 3 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0412]: cannot find type `Ticket` in this scope
[INFO] [stdout]  --> exercises/03_ticket_v1/03_modules/src/lib.rs:5:66
[INFO] [stdout]   |
[INFO] [stdout] 5 |     fn create_todo_ticket(title: String, description: String) -> Ticket {
[INFO] [stdout]   |                                                                  ^^^^^^ not found in this scope
[INFO] [stdout]   |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]   |
[INFO] [stdout] 5 +     use crate::Ticket;
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Ticket`
[INFO] [stdout]  --> exercises/03_ticket_v1/03_modules/src/lib.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 6 |         Ticket::new(title, description, "To-Do".into())
[INFO] [stdout]   |         ^^^^^^ use of undeclared type `Ticket`
[INFO] [stdout]   |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]   |
[INFO] [stdout] 5 +     use crate::Ticket;
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `modules` (lib) due to 2 previous errors
[INFO] [stdout] Some errors have detailed explanations: E0412, E0433.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0412`.
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "fb8dae36b809722aae701ca2baaac5e9e3b692d3cda93d66420ef2ae88431c71", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fb8dae36b809722aae701ca2baaac5e9e3b692d3cda93d66420ef2ae88431c71", kill_on_drop: false }`
[INFO] [stdout] fb8dae36b809722aae701ca2baaac5e9e3b692d3cda93d66420ef2ae88431c71
