[INFO] cloning repository https://github.com/passy/ordered-jobs-kata-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/passy/ordered-jobs-kata-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpassy%2Fordered-jobs-kata-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpassy%2Fordered-jobs-kata-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d5afa602a59069ad31e5c12218ce76b87ba6d338
[INFO] testing passy/ordered-jobs-kata-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%2Fpassy%2Fordered-jobs-kata-rust" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/passy/ordered-jobs-kata-rust
[INFO] finished tweaking git repo https://github.com/passy/ordered-jobs-kata-rust
[INFO] tweaked toml for git repo https://github.com/passy/ordered-jobs-kata-rust written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/passy/ordered-jobs-kata-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/passy/ordered-jobs-kata-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] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 48b8ebd44402367e1d86547ce666e1d4128d490d41a7307636e6fad3a286c32f
[INFO] running `Command { std: "docker" "start" "-a" "48b8ebd44402367e1d86547ce666e1d4128d490d41a7307636e6fad3a286c32f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "48b8ebd44402367e1d86547ce666e1d4128d490d41a7307636e6fad3a286c32f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "48b8ebd44402367e1d86547ce666e1d4128d490d41a7307636e6fad3a286c32f", kill_on_drop: false }`
[INFO] [stdout] 48b8ebd44402367e1d86547ce666e1d4128d490d41a7307636e6fad3a286c32f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=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] 2f079788b61f485c1a9680ab261bb9a5dab03c3e3b7d9077a94669c8fb70e643
[INFO] running `Command { std: "docker" "start" "-a" "2f079788b61f485c1a9680ab261bb9a5dab03c3e3b7d9077a94669c8fb70e643", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr]    Compiling ordered-jobs-kata v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(str_char)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/main.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(collections)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0601]: `main` function not found in crate `ordered_jobs_kata`
[INFO] [stdout]    --> src/main.rs:171:2
[INFO] [stdout]     |
[INFO] [stdout] 171 | }
[INFO] [stdout]     |  ^ consider adding a `main` function to `src/main.rs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0635]: unknown feature `str_char`
[INFO] [stdout]  --> src/main.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(str_char)]
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0635]: unknown feature `collections`
[INFO] [stdout]  --> src/main.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(collections)]
[INFO] [stdout]   |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `char_at` found for reference `&str` in the current scope
[INFO] [stdout]   --> src/main.rs:34:24
[INFO] [stdout]    |
[INFO] [stdout] 34 |             .map(|s| s.char_at(0))  // Generally unsafe but logically guarded by above stmt
[INFO] [stdout]    |                        ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: there is a method `chars` with a similar name, but with different arguments
[INFO] [stdout]   --> /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/core/src/str/mod.rs:1050:5
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `position_elem` found for struct `Vec<Job>` in the current scope
[INFO] [stdout]   --> src/main.rs:56:27
[INFO] [stdout]    |
[INFO] [stdout] 56 |     if let Some(i) = jobs.position_elem(other_job) {
[INFO] [stdout]    |                           ^^^^^^^^^^^^^ method not found in `Vec<Job>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0554, E0599, E0601, E0635.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ordered-jobs-kata` (bin "ordered-jobs-kata") due to 7 previous errors
[INFO] running `Command { std: "docker" "inspect" "2f079788b61f485c1a9680ab261bb9a5dab03c3e3b7d9077a94669c8fb70e643", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2f079788b61f485c1a9680ab261bb9a5dab03c3e3b7d9077a94669c8fb70e643", kill_on_drop: false }`
[INFO] [stdout] 2f079788b61f485c1a9680ab261bb9a5dab03c3e3b7d9077a94669c8fb70e643