[INFO] fetching crate x86_vlapic 0.1.0...
[INFO] testing x86_vlapic-0.1.0 against 1.90.0 for beta-1.91-3
[INFO] extracting crate x86_vlapic 0.1.0 into /workspace/builds/worker-0-tc1/source
[INFO] started tweaking crates.io crate x86_vlapic 0.1.0
[INFO] finished tweaking crates.io crate x86_vlapic 0.1.0
[INFO] tweaked toml for crates.io crate x86_vlapic 0.1.0 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate x86_vlapic 0.1.0 on toolchain 1.90.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate x86_vlapic 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" "+1.90.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded crate_interface v0.1.4
[INFO] [stderr]   Downloaded axvisor_api_proc v0.1.0
[INFO] [stderr]   Downloaded bit v0.1.1
[INFO] [stderr]   Downloaded page_table_multiarch v0.5.5
[INFO] [stderr]   Downloaded memory_addr v0.4.0
[INFO] [stderr]   Downloaded axaddrspace v0.1.0
[INFO] [stderr]   Downloaded tock-registers v0.10.0
[INFO] [stderr]   Downloaded axvisor_api v0.1.0
[INFO] [stderr]   Downloaded lazyinit v0.2.1
[INFO] [stderr]   Downloaded page_table_entry v0.5.5
[INFO] [stderr]   Downloaded memory_set v0.4.0
[INFO] [stderr]   Downloaded enumerable_derive v1.2.0
[INFO] [stderr]   Downloaded enumerable v1.2.0
[INFO] [stderr]   Downloaded toml_parser v1.0.2
[INFO] [stderr]   Downloaded aarch64-cpu v10.0.0
[INFO] [stderr]   Downloaded toml v0.9.5
[INFO] [stderr]   Downloaded axvmconfig v0.1.0
[INFO] [stderr]   Downloaded x86_64 v0.15.2
[INFO] [stderr]   Downloaded axdevice_base v0.1.0
[INFO] [stderr]   Downloaded riscv v0.14.0
[INFO] [stderr]   Downloaded serde_repr v0.1.20
[INFO] [stderr]   Downloaded toml_datetime v0.7.0
[INFO] [stderr]   Downloaded tock-registers v0.9.0
[INFO] [stderr]   Downloaded volatile v0.4.6
[INFO] [stderr]   Downloaded serde_spanned v1.0.0
[INFO] [stderr]   Downloaded toml_writer v1.0.2
[INFO] [stderr]   Downloaded axerrno v0.1.0
[INFO] [stderr]   Downloaded numeric-enum-macro v0.2.0
[INFO] [stderr]   Downloaded riscv-pac v0.2.0
[INFO] [stderr]   Downloaded x86 v0.52.0
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5930c1ce82c8a891112a289684a2438460b54fd628afe0ec615520b5c4480b49
[INFO] running `Command { std: "docker" "start" "-a" "5930c1ce82c8a891112a289684a2438460b54fd628afe0ec615520b5c4480b49", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5930c1ce82c8a891112a289684a2438460b54fd628afe0ec615520b5c4480b49", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5930c1ce82c8a891112a289684a2438460b54fd628afe0ec615520b5c4480b49", kill_on_drop: false }`
[INFO] [stdout] 5930c1ce82c8a891112a289684a2438460b54fd628afe0ec615520b5c4480b49
[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=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" "+1.90.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f08c446cd38dab90c8a6f0d54b2537296a753e514395b29fe3d312b27c084d2b
[INFO] running `Command { std: "docker" "start" "-a" "f08c446cd38dab90c8a6f0d54b2537296a753e514395b29fe3d312b27c084d2b", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.93
[INFO] [stderr]    Compiling unicode-ident v1.0.17
[INFO] [stderr]    Compiling hashbrown v0.15.4
[INFO] [stderr]    Compiling equivalent v1.0.2
[INFO] [stderr]    Compiling rustversion v1.0.19
[INFO] [stderr]    Compiling toml_datetime v0.6.11
[INFO] [stderr]    Compiling winnow v0.7.12
[INFO] [stderr]    Compiling bit_field v0.10.2
[INFO] [stderr]    Compiling serde v1.0.218
[INFO] [stderr]    Compiling log v0.4.26
[INFO] [stderr]    Compiling bitflags v2.9.0
[INFO] [stderr]    Compiling axerrno v0.1.0
[INFO] [stderr]    Compiling x86 v0.52.0
[INFO] [stderr]    Compiling memory_addr v0.4.0
[INFO] [stderr]    Compiling volatile v0.4.6
[INFO] [stderr]    Compiling toml_writer v1.0.2
[INFO] [stderr]    Compiling lazyinit v0.2.1
[INFO] [stderr]    Compiling numeric-enum-macro v0.2.0
[INFO] [stderr]    Compiling bit v0.1.1
[INFO] [stderr]    Compiling tock-registers v0.10.0
[INFO] [stderr]    Compiling memory_set v0.4.0
[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/axerrno-0.1.0/src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(variant_count)]
[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 `axerrno` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "f08c446cd38dab90c8a6f0d54b2537296a753e514395b29fe3d312b27c084d2b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f08c446cd38dab90c8a6f0d54b2537296a753e514395b29fe3d312b27c084d2b", kill_on_drop: false }`
[INFO] [stdout] f08c446cd38dab90c8a6f0d54b2537296a753e514395b29fe3d312b27c084d2b