[INFO] fetching crate vsched_base_task 0.1.0...
[INFO] checking vsched_base_task-0.1.0 against 1.95.0 for pr-155915
[INFO] extracting crate vsched_base_task 0.1.0 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate vsched_base_task 0.1.0
[INFO] finished tweaking crates.io crate vsched_base_task 0.1.0
[INFO] tweaked toml for crates.io crate vsched_base_task 0.1.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate vsched_base_task 0.1.0 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 vsched_base_task 0.1.0 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" "+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 vsched_scheduler v0.2.1
[INFO] [stderr]   Downloaded vsched_config v0.1.0
[INFO] [stderr]   Downloaded volatile v0.4.6
[INFO] [stderr]   Downloaded cpumask v0.1.0
[INFO] [stderr]   Downloaded vsched_hal v0.1.0
[INFO] [stderr]   Downloaded vsched_utils v0.1.0
[INFO] [stderr]   Downloaded linkme-impl v0.3.35
[INFO] [stderr]   Downloaded kspin v0.1.1
[INFO] [stderr]   Downloaded page_table_entry v0.5.7
[INFO] [stderr]   Downloaded crate_interface v0.1.4
[INFO] [stderr]   Downloaded memory_addr v0.4.0
[INFO] [stderr]   Downloaded riscv-pac v0.2.0
[INFO] [stderr]   Downloaded kernel_guard v0.1.2
[INFO] [stderr]   Downloaded riscv-macros v0.2.0
[INFO] [stderr]   Downloaded linkme v0.3.35
[INFO] [stderr]   Downloaded aarch64-cpu v10.0.0
[INFO] [stderr]   Downloaded riscv v0.14.0
[INFO] [stderr]   Downloaded raw-cpuid v10.7.0
[INFO] [stderr]   Downloaded x86_64 v0.15.2
[INFO] [stderr]   Downloaded tock-registers v0.9.0
[INFO] [stderr]   Downloaded x86 v0.52.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 4b2d7f13627a49a66f06e091d4f3657213e8f9e5a8aa14d4f1c77ad5f75bf91a
[INFO] running `Command { std: "docker" "start" "-a" "4b2d7f13627a49a66f06e091d4f3657213e8f9e5a8aa14d4f1c77ad5f75bf91a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4b2d7f13627a49a66f06e091d4f3657213e8f9e5a8aa14d4f1c77ad5f75bf91a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4b2d7f13627a49a66f06e091d4f3657213e8f9e5a8aa14d4f1c77ad5f75bf91a", kill_on_drop: false }`
[INFO] [stdout] 4b2d7f13627a49a66f06e091d4f3657213e8f9e5a8aa14d4f1c77ad5f75bf91a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] bf8619c709f98ab2e35c0a2e22f000e884f8c4e2c0161b12b5dc05c8473a8f69
[INFO] running `Command { std: "docker" "start" "-a" "bf8619c709f98ab2e35c0a2e22f000e884f8c4e2c0161b12b5dc05c8473a8f69", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.101
[INFO] [stderr]    Compiling unicode-ident v1.0.19
[INFO] [stderr]    Compiling quote v1.0.41
[INFO] [stderr]    Compiling linkme-impl v0.3.35
[INFO] [stderr]    Compiling crossbeam-utils v0.8.21
[INFO] [stderr]    Compiling x86 v0.52.0
[INFO] [stderr]    Compiling linkme v0.3.35
[INFO] [stderr]    Compiling heapless v0.8.0
[INFO] [stderr]     Checking volatile v0.4.6
[INFO] [stderr]     Checking bitmaps v3.2.1
[INFO] [stderr]    Compiling regex-automata v0.4.13
[INFO] [stderr]     Checking bitflags v2.9.4
[INFO] [stderr]     Checking raw-cpuid v10.7.0
[INFO] [stderr]     Checking memory_addr v0.4.0
[INFO] [stderr]     Checking cfg-if v1.0.3
[INFO] [stderr]     Checking vsched_utils v0.1.0
[INFO] [stderr]     Checking x86_64 v0.15.2
[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_64-0.15.2/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] [stderr]     Checking crossbeam v0.8.4
[INFO] [stderr]     Checking cpumask v0.1.0
[INFO] [stderr]    Compiling syn v2.0.106
[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" "bf8619c709f98ab2e35c0a2e22f000e884f8c4e2c0161b12b5dc05c8473a8f69", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bf8619c709f98ab2e35c0a2e22f000e884f8c4e2c0161b12b5dc05c8473a8f69", kill_on_drop: false }`
[INFO] [stdout] bf8619c709f98ab2e35c0a2e22f000e884f8c4e2c0161b12b5dc05c8473a8f69
