[INFO] fetching crate ilgda-ipc 0.2.1...
[INFO] checking ilgda-ipc-0.2.1 against 67a539cbdf2a0107837ce64f9069509a44da67b7 for pr-164053
[INFO] extracting crate ilgda-ipc 0.2.1 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate ilgda-ipc 0.2.1
[INFO] finished tweaking crates.io crate ilgda-ipc 0.2.1
[INFO] tweaked toml for crates.io crate ilgda-ipc 0.2.1 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate ilgda-ipc 0.2.1 on toolchain 67a539cbdf2a0107837ce64f9069509a44da67b7
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+67a539cbdf2a0107837ce64f9069509a44da67b7" "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" "+67a539cbdf2a0107837ce64f9069509a44da67b7" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 75 packages to highest compatible versions
[INFO] [stderr]       Adding bincode v1.3.3 (available: v3.0.0)
[INFO] [stderr]       Adding ipc-channel v0.18.3 (available: v0.23.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+67a539cbdf2a0107837ce64f9069509a44da67b7" "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/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 8d06a8bfbb95805b5ad7e410969379cd50544e656f4daafc92663e792fe72240
[INFO] running `Command { std: "docker" "start" "8d06a8bfbb95805b5ad7e410969379cd50544e656f4daafc92663e792fe72240", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8d06a8bfbb95805b5ad7e410969379cd50544e656f4daafc92663e792fe72240", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "8d06a8bfbb95805b5ad7e410969379cd50544e656f4daafc92663e792fe72240" "/opt/rustwide/cargo-home/bin/cargo" "+67a539cbdf2a0107837ce64f9069509a44da67b7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8d06a8bfbb95805b5ad7e410969379cd50544e656f4daafc92663e792fe72240", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-w" "/opt/rustwide/workdir" "--user" "0:0" "8d06a8bfbb95805b5ad7e410969379cd50544e656f4daafc92663e792fe72240" "/opt/rustwide/cargo-home/bin/cargo" "+67a539cbdf2a0107837ce64f9069509a44da67b7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling crossbeam-utils v0.8.23
[INFO] [stderr]     Checking cfg-if v1.0.5
[INFO] [stderr]    Compiling zerocopy v0.8.63
[INFO] [stderr]    Compiling serde v1.0.229
[INFO] [stderr]    Compiling rustix v1.1.5
[INFO] [stderr]     Checking bitflags v2.13.2
[INFO] [stderr]    Compiling crossbeam-deque v0.8.8
[INFO] [stderr]     Checking once_cell v1.21.4
[INFO] [stderr]     Checking fastrand v2.5.0
[INFO] [stderr]     Checking log v0.4.34
[INFO] [stderr]    Compiling likely_stable v0.1.3
[INFO] [stderr]     Checking tokio v1.54.0
[INFO] [stderr]     Checking getrandom v0.2.17
[INFO] [stderr]     Checking getrandom v0.4.3
[INFO] [stderr]     Checking mio v1.2.4
[INFO] [stderr]     Checking uuid v1.28.0
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking crossbeam-epoch v0.9.21
[INFO] [stderr]     Checking crossbeam-channel v0.5.17
[INFO] [stderr]     Checking crossbeam-queue v0.3.14
[INFO] [stderr]     Checking crossbeam v0.8.5
[INFO] [stderr]     Checking bincode v1.3.3
[INFO] [stderr]     Checking heap-array v0.1.9
[INFO] [stdout] error[E0658]: use of unstable library feature `liballoc_internals`
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/heap-array-0.1.9/src/lib.rs:1006:13
[INFO] [stdout]      |
[INFO] [stdout] 1006 |             vec::from_elem(element, len).into()
[INFO] [stdout]      |             ^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: add `#![feature(liballoc_internals)]` to the crate attributes to enable
[INFO] [stdout]      = note: this compiler was built on 2026-10-09; consider upgrading it if it is out of date
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0658`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `heap-array` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "8d06a8bfbb95805b5ad7e410969379cd50544e656f4daafc92663e792fe72240", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8d06a8bfbb95805b5ad7e410969379cd50544e656f4daafc92663e792fe72240", kill_on_drop: false }`
[INFO] [stdout] 8d06a8bfbb95805b5ad7e410969379cd50544e656f4daafc92663e792fe72240
