[INFO] fetching crate rmin 0.4.3...
[INFO] testing rmin-0.4.3 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate rmin 0.4.3 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate rmin 0.4.3
[INFO] finished tweaking crates.io crate rmin 0.4.3
[INFO] tweaked toml for crates.io crate rmin 0.4.3 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate rmin 0.4.3 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 3 packages to latest compatible versions
[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-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 02b74bad316208e15ef9540ce8ef72ec86a6180242c1c8e1abf48fd876e29401
[INFO] running `Command { std: "docker" "start" "-a" "02b74bad316208e15ef9540ce8ef72ec86a6180242c1c8e1abf48fd876e29401", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "02b74bad316208e15ef9540ce8ef72ec86a6180242c1c8e1abf48fd876e29401", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "02b74bad316208e15ef9540ce8ef72ec86a6180242c1c8e1abf48fd876e29401", kill_on_drop: false }`
[INFO] [stdout] 02b74bad316208e15ef9540ce8ef72ec86a6180242c1c8e1abf48fd876e29401
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] c7545fc87f10ff9c8eba42316042cd26b98314caefbc022a72571980871364e2
[INFO] running `Command { std: "docker" "start" "-a" "c7545fc87f10ff9c8eba42316042cd26b98314caefbc022a72571980871364e2", kill_on_drop: false }`
[INFO] [stderr]    Compiling rmin v0.4.3 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling rmin-eh v0.0.1
[INFO] [stderr]    Compiling rmin-macros v0.0.7
[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/rmin-eh-0.0.1/src/mod.rs:14:1
[INFO] [stdout]    |
[INFO] [stdout] 14 | #![feature(lang_items, panic_unwind, std_internals, strict_provenance, exposed_provenance)]
[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 `rmin-eh` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "c7545fc87f10ff9c8eba42316042cd26b98314caefbc022a72571980871364e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c7545fc87f10ff9c8eba42316042cd26b98314caefbc022a72571980871364e2", kill_on_drop: false }`
[INFO] [stdout] c7545fc87f10ff9c8eba42316042cd26b98314caefbc022a72571980871364e2
