[INFO] fetching crate ipcbus 0.1.0... [INFO] testing ipcbus-0.1.0 against beta-2025-09-21 for beta-1.91-3 [INFO] extracting crate ipcbus 0.1.0 into /workspace/builds/worker-2-tc2/source [INFO] started tweaking crates.io crate ipcbus 0.1.0 [INFO] finished tweaking crates.io crate ipcbus 0.1.0 [INFO] tweaked toml for crates.io crate ipcbus 0.1.0 written to /workspace/builds/worker-2-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate ipcbus 0.1.0 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] [stderr] Updating crates.io index [INFO] [stderr] Locking 33 packages to latest compatible versions [INFO] [stderr] Adding event-listener v2.5.3 (available: v5.4.1) [INFO] [stderr] Adding nix v0.24.3 (available: v0.30.1) [INFO] [stderr] Adding socket2 v0.4.10 (available: v0.6.0) [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] 42bb9bc242e819bb2c27459be516249d862b3f4792fd38766f6c5ddf3514208b [INFO] running `Command { std: "docker" "start" "-a" "42bb9bc242e819bb2c27459be516249d862b3f4792fd38766f6c5ddf3514208b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "42bb9bc242e819bb2c27459be516249d862b3f4792fd38766f6c5ddf3514208b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "42bb9bc242e819bb2c27459be516249d862b3f4792fd38766f6c5ddf3514208b", kill_on_drop: false }` [INFO] [stdout] 42bb9bc242e819bb2c27459be516249d862b3f4792fd38766f6c5ddf3514208b [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] d68b2b39b302fbc4eff4493be46aa9285238b7169a414af97d631b8a6cce3d09 [INFO] running `Command { std: "docker" "start" "-a" "d68b2b39b302fbc4eff4493be46aa9285238b7169a414af97d631b8a6cce3d09", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.176 [INFO] [stderr] Compiling event-listener v2.5.3 [INFO] [stderr] Compiling memoffset v0.6.5 [INFO] [stderr] Compiling tracing-core v0.1.34 [INFO] [stderr] Compiling syn v2.0.106 [INFO] [stderr] Compiling socket2 v0.4.10 [INFO] [stderr] Compiling nix v0.24.3 [INFO] [stderr] Compiling fslock v0.2.1 [INFO] [stderr] Compiling tracing-attributes v0.1.30 [INFO] [stderr] Compiling tracing v0.1.41 [INFO] [stderr] Compiling ipcbus v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel [INFO] [stdout] --> src/lib.rs:6:1 [INFO] [stdout] | [INFO] [stdout] 6 | #![feature(maybe_uninit_slice)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0599]: no function or associated item named `slice_assume_init_ref` found for union `MaybeUninit` in the current scope [INFO] [stdout] --> src/udp_multicast.rs:58:43 [INFO] [stdout] | [INFO] [stdout] 58 | let bytes = unsafe { MaybeUninit::slice_assume_init_ref(&buf[0..l]) }; [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] help: there is a method `assume_init_ref` with a similar name, but with different arguments [INFO] [stdout] --> /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/core/src/mem/maybe_uninit.rs:782:5 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/procbus.rs:72:13 [INFO] [stdout] | [INFO] [stdout] 72 | let mut this = Arc::get_mut(self).expect("You must init_udp before cloning a env"); [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default [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 `ipcbus` (lib) due to 2 previous errors; 1 warning emitted [INFO] running `Command { std: "docker" "inspect" "d68b2b39b302fbc4eff4493be46aa9285238b7169a414af97d631b8a6cce3d09", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d68b2b39b302fbc4eff4493be46aa9285238b7169a414af97d631b8a6cce3d09", kill_on_drop: false }` [INFO] [stdout] d68b2b39b302fbc4eff4493be46aa9285238b7169a414af97d631b8a6cce3d09