[INFO] fetching crate rv-rt 0.0.0...
[INFO] testing rv-rt-0.0.0 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate rv-rt 0.0.0 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate rv-rt 0.0.0
[INFO] finished tweaking crates.io crate rv-rt 0.0.0
[INFO] tweaked toml for crates.io crate rv-rt 0.0.0 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate rv-rt 0.0.0 on toolchain beta-2026-04-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "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-2026-04-21" "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-2026-04-21" "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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b7e1dd33e17306d4d4a7a12b98f7dc847527c5f8d7b04741a0e51cdabeaa69c7
[INFO] running `Command { std: "docker" "start" "-a" "b7e1dd33e17306d4d4a7a12b98f7dc847527c5f8d7b04741a0e51cdabeaa69c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b7e1dd33e17306d4d4a7a12b98f7dc847527c5f8d7b04741a0e51cdabeaa69c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b7e1dd33e17306d4d4a7a12b98f7dc847527c5f8d7b04741a0e51cdabeaa69c7", kill_on_drop: false }`
[INFO] [stdout] b7e1dd33e17306d4d4a7a12b98f7dc847527c5f8d7b04741a0e51cdabeaa69c7
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 29a78db45c14c047b27daba1231cf01ff6ec5659628261ab5b2488039c2e0403
[INFO] running `Command { std: "docker" "start" "-a" "29a78db45c14c047b27daba1231cf01ff6ec5659628261ab5b2488039c2e0403", kill_on_drop: false }`
[INFO] [stderr]    Compiling rv-rt v0.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(abi_riscv_interrupt)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0570]: "riscv-interrupt-m" is not a supported ABI for the current target
[INFO] [stdout]   --> src/lib.rs:69:15
[INFO] [stdout]    |
[INFO] [stdout] 69 | unsafe extern "riscv-interrupt-m" fn _start_trap_rust() {
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0554, E0570.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rv-rt` (lib) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "29a78db45c14c047b27daba1231cf01ff6ec5659628261ab5b2488039c2e0403", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "29a78db45c14c047b27daba1231cf01ff6ec5659628261ab5b2488039c2e0403", kill_on_drop: false }`
[INFO] [stdout] 29a78db45c14c047b27daba1231cf01ff6ec5659628261ab5b2488039c2e0403
