[INFO] fetching crate dynode 0.0.0... [INFO] testing dynode-0.0.0 against beta-2025-09-21 for beta-1.91-3 [INFO] extracting crate dynode 0.0.0 into /workspace/builds/worker-4-tc2/source [INFO] started tweaking crates.io crate dynode 0.0.0 [INFO] removed 0 missing examples [INFO] finished tweaking crates.io crate dynode 0.0.0 [INFO] tweaked toml for crates.io crate dynode 0.0.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate dynode 0.0.0 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] crate crates.io crate dynode 0.0.0 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] Blocking waiting for file lock on package cache [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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 56863e74cf00d957054aab90f26ef14f5f25594a9f859cd7eb96d41bf740cbfc [INFO] running `Command { std: "docker" "start" "-a" "56863e74cf00d957054aab90f26ef14f5f25594a9f859cd7eb96d41bf740cbfc", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "56863e74cf00d957054aab90f26ef14f5f25594a9f859cd7eb96d41bf740cbfc", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "56863e74cf00d957054aab90f26ef14f5f25594a9f859cd7eb96d41bf740cbfc", kill_on_drop: false }` [INFO] [stdout] 56863e74cf00d957054aab90f26ef14f5f25594a9f859cd7eb96d41bf740cbfc [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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 685efdb99f6b4b0f2f69638529e24c11248ee0d2f23c9ad46001fe792a28eb0f [INFO] running `Command { std: "docker" "start" "-a" "685efdb99f6b4b0f2f69638529e24c11248ee0d2f23c9ad46001fe792a28eb0f", kill_on_drop: false }` [INFO] [stderr] Compiling dynode v0.0.0 (/opt/rustwide/workdir) [INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel [INFO] [stdout] --> src/lib.rs:1:1 [INFO] [stdout] | [INFO] [stdout] 1 | / #![feature( [INFO] [stdout] 2 | | ptr_metadata, [INFO] [stdout] 3 | | layout_for_ptr, [INFO] [stdout] 4 | | allocator_api, [INFO] [stdout] ... | [INFO] [stdout] 8 | | maybe_uninit_write_slice [INFO] [stdout] 9 | | )] [INFO] [stdout] | |__^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the feature `non_null_from_ref` has been stable since 1.89.0 and no longer requires an attribute to enable [INFO] [stdout] --> src/lib.rs:6:5 [INFO] [stdout] | [INFO] [stdout] 6 | non_null_from_ref, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(stable_features)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks [INFO] [stdout] --> src/maybe_uninit.rs:519:5 [INFO] [stdout] | [INFO] [stdout] 519 | #[must_use] [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! [INFO] [stdout] = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits [INFO] [stdout] = note: `#[warn(unused_attributes)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks [INFO] [stdout] --> src/maybe_uninit.rs:532:5 [INFO] [stdout] | [INFO] [stdout] 532 | #[must_use] [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! [INFO] [stdout] = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks [INFO] [stdout] --> src/maybe_uninit.rs:546:5 [INFO] [stdout] | [INFO] [stdout] 546 | #[must_use] [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! [INFO] [stdout] = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks [INFO] [stdout] --> src/maybe_uninit.rs:559:5 [INFO] [stdout] | [INFO] [stdout] 559 | #[must_use] [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! [INFO] [stdout] = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0599]: no function or associated item named `copy_from_slice` found for union `MaybeUninit` in the current scope [INFO] [stdout] --> src/maybe_uninit.rs:406:22 [INFO] [stdout] | [INFO] [stdout] 406 | MaybeUninit::copy_from_slice(&mut dest[..len], &src[..len]); [INFO] [stdout] | ^^^^^^^^^^^^^^^ function or associated item not found in `MaybeUninit<_>` [INFO] [stdout] | [INFO] [stdout] note: if you're trying to build a new `MaybeUninit<_>` consider using one of the following associated functions: [INFO] [stdout] MaybeUninit::::new [INFO] [stdout] MaybeUninit::::uninit [INFO] [stdout] MaybeUninit::::zeroed [INFO] [stdout] --> /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/core/src/mem/maybe_uninit.rs:307:5 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0599]: no function or associated item named `copy_from_slice` found for union `MaybeUninit` in the current scope [INFO] [stdout] --> src/maybe_uninit.rs:486:22 [INFO] [stdout] | [INFO] [stdout] 486 | MaybeUninit::copy_from_slice(&mut self.as_bytes_mut()[..len], &src.as_bytes()[..len]); [INFO] [stdout] | ^^^^^^^^^^^^^^^ function or associated item not found in `MaybeUninit<_>` [INFO] [stdout] | [INFO] [stdout] note: if you're trying to build a new `MaybeUninit<_>` consider using one of the following associated functions: [INFO] [stdout] MaybeUninit::::new [INFO] [stdout] MaybeUninit::::uninit [INFO] [stdout] MaybeUninit::::zeroed [INFO] [stdout] --> /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/core/src/mem/maybe_uninit.rs:307:5 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] Some errors have detailed explanations: E0554, E0599. [INFO] [stdout] [INFO] [stdout] For more information about an error, try `rustc --explain E0554`. [INFO] [stdout] [INFO] [stderr] error: could not compile `dynode` (lib) due to 3 previous errors; 5 warnings emitted [INFO] running `Command { std: "docker" "inspect" "685efdb99f6b4b0f2f69638529e24c11248ee0d2f23c9ad46001fe792a28eb0f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "685efdb99f6b4b0f2f69638529e24c11248ee0d2f23c9ad46001fe792a28eb0f", kill_on_drop: false }` [INFO] [stdout] 685efdb99f6b4b0f2f69638529e24c11248ee0d2f23c9ad46001fe792a28eb0f