[INFO] fetching crate trident3-base 3.0.1...
[INFO] testing trident3-base-3.0.1 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate trident3-base 3.0.1 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate trident3-base 3.0.1
[INFO] finished tweaking crates.io crate trident3-base 3.0.1
[INFO] tweaked toml for crates.io crate trident3-base 3.0.1 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate trident3-base 3.0.1 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 30 packages to latest compatible versions
[INFO] [stderr]       Adding noto-sans-mono-bitmap v0.2.0 (available: v0.3.1)
[INFO] [stderr]       Adding pc-keyboard v0.7.0 (available: v0.8.0)
[INFO] [stderr]       Adding spin v0.9.8 (available: v0.10.0)
[INFO] [stderr]       Adding x86_64 v0.14.13 (available: v0.15.2)
[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-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] cdc1c6a1c2f634a909e131afed8841a9bd93afca6a7199d4f1f6c8816a157139
[INFO] running `Command { std: "docker" "start" "-a" "cdc1c6a1c2f634a909e131afed8841a9bd93afca6a7199d4f1f6c8816a157139", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cdc1c6a1c2f634a909e131afed8841a9bd93afca6a7199d4f1f6c8816a157139", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cdc1c6a1c2f634a909e131afed8841a9bd93afca6a7199d4f1f6c8816a157139", kill_on_drop: false }`
[INFO] [stdout] cdc1c6a1c2f634a909e131afed8841a9bd93afca6a7199d4f1f6c8816a157139
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] e56946a48f308c6b011ee8cbac1f8179c22a29ba85a295f9e517daf02824a7ed
[INFO] running `Command { std: "docker" "start" "-a" "e56946a48f308c6b011ee8cbac1f8179c22a29ba85a295f9e517daf02824a7ed", kill_on_drop: false }`
[INFO] [stderr]    Compiling lock_api v0.4.13
[INFO] [stderr]    Compiling crossbeam-utils v0.8.21
[INFO] [stderr]    Compiling rustversion v1.0.22
[INFO] [stderr]    Compiling x86 v0.52.0
[INFO] [stderr]    Compiling bit_field v0.10.3
[INFO] [stderr]    Compiling springboard-api v3.0.1
[INFO] [stderr]    Compiling raw-cpuid v10.7.0
[INFO] [stderr]    Compiling futures-task v0.3.31
[INFO] [stderr]    Compiling conquer-util v0.3.0
[INFO] [stderr]    Compiling volatile v0.4.6
[INFO] [stderr]    Compiling futures-core v0.3.31
[INFO] [stderr]    Compiling bitflags v2.9.4
[INFO] [stderr]    Compiling trident3-base v3.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling pc-keyboard v0.7.0
[INFO] [stderr]    Compiling noto-sans-mono-bitmap v0.2.0
[INFO] [stderr]    Compiling conquer-once v0.4.0
[INFO] [stderr]    Compiling futures-util v0.3.31
[INFO] [stderr]    Compiling spin v0.9.8
[INFO] [stderr]    Compiling spinning_top v0.3.0
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/springboard-api-3.0.1/src/lib.rs:7:1
[INFO] [stdout]   |
[INFO] [stdout] 7 | #![feature(decl_macro)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling lazy_static v1.5.0
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `springboard-api` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "e56946a48f308c6b011ee8cbac1f8179c22a29ba85a295f9e517daf02824a7ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e56946a48f308c6b011ee8cbac1f8179c22a29ba85a295f9e517daf02824a7ed", kill_on_drop: false }`
[INFO] [stdout] e56946a48f308c6b011ee8cbac1f8179c22a29ba85a295f9e517daf02824a7ed