[INFO] fetching crate axcpu 0.3.1...
[INFO] checking axcpu-0.3.1 against 1.95.0 for pr-155915
[INFO] extracting crate axcpu 0.3.1 into /workspace/builds/worker-0-tc1/source
[INFO] started tweaking crates.io crate axcpu 0.3.1
[INFO] finished tweaking crates.io crate axcpu 0.3.1
[INFO] tweaked toml for crates.io crate axcpu 0.3.1 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate axcpu 0.3.1 on toolchain 1.95.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate axcpu 0.3.1 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" "+1.95.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded percpu v0.4.0
[INFO] [stderr]   Downloaded lazyinit v0.2.2
[INFO] [stderr]   Downloaded percpu_macros v0.4.0
[INFO] [stderr]   Downloaded linkme v0.3.35
[INFO] [stderr]   Downloaded loongArch64 v0.2.5
[INFO] [stderr]   Downloaded bitbybit v1.4.0
[INFO] [stderr]   Downloaded arm-targets v0.4.1
[INFO] [stderr]   Downloaded linkme-impl v0.3.35
[INFO] [stderr]   Downloaded memory_addr v0.4.1
[INFO] [stderr]   Downloaded page_table_multiarch v0.6.1
[INFO] [stderr]   Downloaded page_table_entry v0.6.1
[INFO] [stderr]   Downloaded arbitrary-int v2.1.1
[INFO] [stderr]   Downloaded aarch32-cpu v0.2.0
[INFO] [stderr]   Downloaded arbitrary-int v1.3.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5b6d7b93a4331d601199b24d81f1d722eb6d3ff8243e49f978940bb5a71beac7
[INFO] running `Command { std: "docker" "start" "-a" "5b6d7b93a4331d601199b24d81f1d722eb6d3ff8243e49f978940bb5a71beac7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5b6d7b93a4331d601199b24d81f1d722eb6d3ff8243e49f978940bb5a71beac7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5b6d7b93a4331d601199b24d81f1d722eb6d3ff8243e49f978940bb5a71beac7", kill_on_drop: false }`
[INFO] [stdout] 5b6d7b93a4331d601199b24d81f1d722eb6d3ff8243e49f978940bb5a71beac7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 20a6e13c38c06485b9fca22e0b5175cc416ec257598d831b45ab2b5f396d1fe5
[INFO] running `Command { std: "docker" "start" "-a" "20a6e13c38c06485b9fca22e0b5175cc416ec257598d831b45ab2b5f396d1fe5", kill_on_drop: false }`
[INFO] [stderr]     Checking bit_field v0.10.3
[INFO] [stderr]    Compiling const_fn v0.4.12
[INFO] [stderr]    Compiling x86 v0.52.0
[INFO] [stderr]    Compiling linkme-impl v0.3.35
[INFO] [stderr]    Compiling percpu v0.4.0
[INFO] [stderr]    Compiling linkme v0.3.35
[INFO] [stderr]     Checking volatile v0.4.6
[INFO] [stderr]     Checking bitflags v2.11.0
[INFO] [stderr]     Checking memory_addr v0.4.1
[INFO] [stderr]     Checking raw-cpuid v10.7.0
[INFO] [stderr]     Checking lazyinit v0.2.2
[INFO] [stderr]    Compiling syn v2.0.117
[INFO] [stderr]     Checking x86_64 v0.15.4
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/x86_64-0.15.4/src/lib.rs:5:44
[INFO] [stdout]   |
[INFO] [stdout] 5 | #![cfg_attr(feature = "abi_x86_interrupt", feature(abi_x86_interrupt))]
[INFO] [stdout]   |                                            ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `x86_64` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "20a6e13c38c06485b9fca22e0b5175cc416ec257598d831b45ab2b5f396d1fe5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "20a6e13c38c06485b9fca22e0b5175cc416ec257598d831b45ab2b5f396d1fe5", kill_on_drop: false }`
[INFO] [stdout] 20a6e13c38c06485b9fca22e0b5175cc416ec257598d831b45ab2b5f396d1fe5