[INFO] fetching crate syntex_bitflags 0.1.0...
[INFO] testing syntex_bitflags-0.1.0 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate syntex_bitflags 0.1.0 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate syntex_bitflags 0.1.0
[INFO] finished tweaking crates.io crate syntex_bitflags 0.1.0
[INFO] tweaked toml for crates.io crate syntex_bitflags 0.1.0 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate syntex_bitflags 0.1.0 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] 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] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 0bee9f07ec139ceff3a738c8bfdeeb54dc9a1c5028bdd0ff0e881b66f4028d37
[INFO] running `Command { std: "docker" "start" "-a" "0bee9f07ec139ceff3a738c8bfdeeb54dc9a1c5028bdd0ff0e881b66f4028d37", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0bee9f07ec139ceff3a738c8bfdeeb54dc9a1c5028bdd0ff0e881b66f4028d37", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0bee9f07ec139ceff3a738c8bfdeeb54dc9a1c5028bdd0ff0e881b66f4028d37", kill_on_drop: false }`
[INFO] [stdout] 0bee9f07ec139ceff3a738c8bfdeeb54dc9a1c5028bdd0ff0e881b66f4028d37
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 528ca2b1be4e9a340ebc3ddccb0a3e42adeb082cabdaa2e70709d3274e73feee
[INFO] running `Command { std: "docker" "start" "-a" "528ca2b1be4e9a340ebc3ddccb0a3e42adeb082cabdaa2e70709d3274e73feee", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr]    Compiling syntex_bitflags v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: cannot find attribute `staged_api` in this scope
[INFO] [stdout]   --> src/lib.rs:12:4
[INFO] [stdout]    |
[INFO] [stdout] 12 | #![staged_api]
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0734]: stability attributes may not be used outside of the standard library
[INFO] [stdout]   --> src/lib.rs:11:1
[INFO] [stdout]    |
[INFO] [stdout] 11 | #![unstable]
[INFO] [stdout]    | ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0734`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `syntex_bitflags` (lib) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "528ca2b1be4e9a340ebc3ddccb0a3e42adeb082cabdaa2e70709d3274e73feee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "528ca2b1be4e9a340ebc3ddccb0a3e42adeb082cabdaa2e70709d3274e73feee", kill_on_drop: false }`
[INFO] [stdout] 528ca2b1be4e9a340ebc3ddccb0a3e42adeb082cabdaa2e70709d3274e73feee