[INFO] fetching crate type-freak 0.2.0...
[INFO] testing type-freak-0.2.0 against beta-2025-10-28 for beta-1.92-2
[INFO] extracting crate type-freak 0.2.0 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate type-freak 0.2.0
[INFO] finished tweaking crates.io crate type-freak 0.2.0
[INFO] tweaked toml for crates.io crate type-freak 0.2.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate type-freak 0.2.0 on toolchain beta-2025-10-28
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-10-28" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-10-28" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 1 package to latest compatible version
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-10-28" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0e3e00a133f91a497080317ce7a0018f1373795c57138e897a8062e128f5c628
[INFO] running `Command { std: "docker" "start" "-a" "0e3e00a133f91a497080317ce7a0018f1373795c57138e897a8062e128f5c628", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0e3e00a133f91a497080317ce7a0018f1373795c57138e897a8062e128f5c628", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0e3e00a133f91a497080317ce7a0018f1373795c57138e897a8062e128f5c628", kill_on_drop: false }`
[INFO] [stdout] 0e3e00a133f91a497080317ce7a0018f1373795c57138e897a8062e128f5c628
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c588d96375f797546fababafc385542acaa78cd3d0792f54198e9ae0cb58fd36
[INFO] running `Command { std: "docker" "start" "-a" "c588d96375f797546fababafc385542acaa78cd3d0792f54198e9ae0cb58fd36", kill_on_drop: false }`
[INFO] [stderr]    Compiling type-freak v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]    --> src/lib.rs:215:1
[INFO] [stdout]     |
[INFO] [stdout] 215 | #![feature(vec_remove_item)]
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `macros::*`
[INFO] [stdout]    --> src/list/mod.rs:100:9
[INFO] [stdout]     |
[INFO] [stdout] 100 | pub use macros::*;
[INFO] [stdout]     |         ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0635]: unknown feature `vec_remove_item`
[INFO] [stdout]    --> src/lib.rs:215:12
[INFO] [stdout]     |
[INFO] [stdout] 215 | #![feature(vec_remove_item)]
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0554, E0635.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `type-freak` (lib) due to 2 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "c588d96375f797546fababafc385542acaa78cd3d0792f54198e9ae0cb58fd36", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c588d96375f797546fababafc385542acaa78cd3d0792f54198e9ae0cb58fd36", kill_on_drop: false }`
[INFO] [stdout] c588d96375f797546fababafc385542acaa78cd3d0792f54198e9ae0cb58fd36
