[INFO] fetching crate fat_type 0.3.0... [INFO] testing fat_type-0.3.0 against beta-2025-09-21 for beta-1.91-3 [INFO] extracting crate fat_type 0.3.0 into /workspace/builds/worker-2-tc2/source [INFO] started tweaking crates.io crate fat_type 0.3.0 [INFO] finished tweaking crates.io crate fat_type 0.3.0 [INFO] tweaked toml for crates.io crate fat_type 0.3.0 written to /workspace/builds/worker-2-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate fat_type 0.3.0 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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] d4e5d6dc231355a5ce688ac9f81f9dc257f37966295ec43d2809ed00dfba6924 [INFO] running `Command { std: "docker" "start" "-a" "d4e5d6dc231355a5ce688ac9f81f9dc257f37966295ec43d2809ed00dfba6924", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "d4e5d6dc231355a5ce688ac9f81f9dc257f37966295ec43d2809ed00dfba6924", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d4e5d6dc231355a5ce688ac9f81f9dc257f37966295ec43d2809ed00dfba6924", kill_on_drop: false }` [INFO] [stdout] d4e5d6dc231355a5ce688ac9f81f9dc257f37966295ec43d2809ed00dfba6924 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 8aa2c7945418ac073f92c035d6bba33d5a02b82cbe27f7bcc58724012946bc06 [INFO] running `Command { std: "docker" "start" "-a" "8aa2c7945418ac073f92c035d6bba33d5a02b82cbe27f7bcc58724012946bc06", kill_on_drop: false }` [INFO] [stderr] Compiling fat_type v0.3.0 (/opt/rustwide/workdir) [INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel [INFO] [stdout] --> src/lib.rs:9:1 [INFO] [stdout] | [INFO] [stdout] 9 | #![feature(extern_types)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel [INFO] [stdout] --> src/lib.rs:10:1 [INFO] [stdout] | [INFO] [stdout] 10 | #![feature(layout_for_ptr)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel [INFO] [stdout] --> src/lib.rs:11:1 [INFO] [stdout] | [INFO] [stdout] 11 | #![feature(ptr_metadata)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel [INFO] [stdout] --> src/lib.rs:12:1 [INFO] [stdout] | [INFO] [stdout] 12 | #![feature(unsize)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0283]: type annotations needed [INFO] [stdout] --> src/lib.rs:385:51 [INFO] [stdout] | [INFO] [stdout] 385 | let layout_ptr = ptr::from_raw_parts::(ptr::null(), *metadata); [INFO] [stdout] | ------------------------ ^^^^^^^^^ cannot infer type of the type parameter `T` declared on the function `null` [INFO] [stdout] | | [INFO] [stdout] | required by a bound introduced by this call [INFO] [stdout] | [INFO] [stdout] = note: cannot satisfy `_: Thin` [INFO] [stdout] note: required by a bound in `core::ptr::from_raw_parts` [INFO] [stdout] --> /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/core/src/ptr/metadata.rs:115:1 [INFO] [stdout] help: consider specifying the generic argument [INFO] [stdout] | [INFO] [stdout] 385 | let layout_ptr = ptr::from_raw_parts::(ptr::null::(), *metadata); [INFO] [stdout] | +++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] Some errors have detailed explanations: E0283, E0554. [INFO] [stdout] [INFO] [stdout] For more information about an error, try `rustc --explain E0283`. [INFO] [stdout] [INFO] [stderr] error: could not compile `fat_type` (lib) due to 5 previous errors [INFO] running `Command { std: "docker" "inspect" "8aa2c7945418ac073f92c035d6bba33d5a02b82cbe27f7bcc58724012946bc06", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8aa2c7945418ac073f92c035d6bba33d5a02b82cbe27f7bcc58724012946bc06", kill_on_drop: false }` [INFO] [stdout] 8aa2c7945418ac073f92c035d6bba33d5a02b82cbe27f7bcc58724012946bc06