[INFO] fetching crate rusk-vm 0.12.0-rc.0...
[INFO] testing rusk-vm-0.12.0-rc.0 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate rusk-vm 0.12.0-rc.0 into /workspace/builds/worker-1-tc2/source
[INFO] removed /workspace/builds/worker-1-tc2/source/.cargo/config
[INFO] removed /workspace/builds/worker-1-tc2/source/rust-toolchain
[INFO] started tweaking crates.io crate rusk-vm 0.12.0-rc.0
[INFO] finished tweaking crates.io crate rusk-vm 0.12.0-rc.0
[INFO] tweaked toml for crates.io crate rusk-vm 0.12.0-rc.0 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate rusk-vm 0.12.0-rc.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] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 300 packages to latest compatible versions
[INFO] [stderr]       Adding cached v0.26.2 (available: v0.59.0)
[INFO] [stderr]       Adding criterion v0.3.6 (available: v0.8.2)
[INFO] [stderr]       Adding dusk-bls12_381 v0.9.0 (available: v0.14.2)
[INFO] [stderr]       Adding loupe v0.1.3 (available: v0.2.0)
[INFO] [stderr]       Adding microkelvin v0.15.0-rc.1 (available: v0.17.0)
[INFO] [stderr]       Adding thiserror v1.0.69 (available: v2.0.18)
[INFO] [stderr]       Adding wasmer v2.3.0 (available: v7.1.0)
[INFO] [stderr]       Adding wasmer-compiler-cranelift v2.3.0 (available: v7.1.0)
[INFO] [stderr]       Adding wasmer-compiler-singlepass v2.3.0 (available: v7.1.0)
[INFO] [stderr]       Adding wasmer-middlewares v2.3.0 (available: v7.1.0)
[INFO] [stderr]       Adding wasmer-vm v2.3.0 (available: v7.1.0)
[INFO] [stderr]       Adding wasmparser v0.81.0 (available: v0.247.0)
[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-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 8a7e7d490ea7b5a81d11a30104d448baa5e251d106f439e2d77e0f721fc639c9
[INFO] running `Command { std: "docker" "start" "-a" "8a7e7d490ea7b5a81d11a30104d448baa5e251d106f439e2d77e0f721fc639c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8a7e7d490ea7b5a81d11a30104d448baa5e251d106f439e2d77e0f721fc639c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8a7e7d490ea7b5a81d11a30104d448baa5e251d106f439e2d77e0f721fc639c9", kill_on_drop: false }`
[INFO] [stdout] 8a7e7d490ea7b5a81d11a30104d448baa5e251d106f439e2d77e0f721fc639c9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 532745fece113a204980b779ede3b2b9a1f846e5ddc8b61bc2d289764e36e92e
[INFO] running `Command { std: "docker" "start" "-a" "532745fece113a204980b779ede3b2b9a1f846e5ddc8b61bc2d289764e36e92e", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.186
[INFO] [stderr]    Compiling serde_core v1.0.228
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]    Compiling target-lexicon v0.12.16
[INFO] [stderr]    Compiling rustc-demangle v0.1.27
[INFO] [stderr]    Compiling object v0.37.3
[INFO] [stderr]    Compiling ptr_meta_derive v0.1.4
[INFO] [stderr]    Compiling addr2line v0.25.1
[INFO] [stderr]    Compiling miniz_oxide v0.8.9
[INFO] [stderr]    Compiling scopeguard v1.2.0
[INFO] [stderr]    Compiling enum-iterator-derive v0.7.0
[INFO] [stderr]    Compiling loupe-derive v0.1.3
[INFO] [stderr]    Compiling rkyv_derive v0.7.46
[INFO] [stderr]    Compiling darling_core v0.21.3
[INFO] [stderr]    Compiling more-asserts v0.2.2
[INFO] [stderr]    Compiling wasmparser v0.83.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling arrayvec v0.4.12
[INFO] [stderr]    Compiling ptr_meta v0.1.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling corosensei v0.1.4
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling cranelift-codegen-shared v0.82.3
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling enum-iterator v0.7.0
[INFO] [stderr]    Compiling lock_api v0.4.14
[INFO] [stderr]    Compiling either v1.15.0
[INFO] [stderr]    Compiling crc32fast v1.5.0
[INFO] [stderr]    Compiling cranelift-codegen-meta v0.82.3
[INFO] [stderr]    Compiling parking_lot_core v0.4.0
[INFO] [stderr]    Compiling derive_arbitrary v1.4.2
[INFO] [stderr]    Compiling cranelift-entity v0.82.3
[INFO] [stderr]    Compiling rustc-hash v1.1.0
[INFO] [stderr]    Compiling constant_time_eq v0.1.5
[INFO] [stderr]    Compiling arrayref v0.3.9
[INFO] [stderr]    Compiling rustix v0.38.44
[INFO] [stderr]    Compiling blake2b_simd v0.3.1
[INFO] [stderr]    Compiling smallvec v0.6.14
[INFO] [stderr]    Compiling owning_ref v0.4.1
[INFO] [stderr]    Compiling regalloc v0.0.34
[INFO] [stderr]    Compiling tracing-attributes v0.1.31
[INFO] [stderr]    Compiling leb128fmt v0.1.0
[INFO] [stderr]    Compiling linux-raw-sys v0.4.15
[INFO] [stderr]    Compiling cranelift-bforest v0.82.3
[INFO] [stderr]    Compiling futures-sink v0.3.32
[INFO] [stderr]    Compiling array-init v2.1.0
[INFO] [stderr]    Compiling dusk-varint v0.1.0
[INFO] [stderr]    Compiling scopeguard v0.3.3
[INFO] [stderr]    Compiling thiserror v1.0.69
[INFO] [stderr]    Compiling lock_api v0.1.5
[INFO] [stderr]    Compiling futures-channel v0.3.32
[INFO] [stderr]    Compiling wasm-encoder v0.247.0
[INFO] [stderr]    Compiling darling_core v0.13.4
[INFO] [stderr]    Compiling rayon v1.12.0
[INFO] [stderr]    Compiling arbitrary v1.4.2
[INFO] [stderr]    Compiling futures-macro v0.3.32
[INFO] [stderr]    Compiling leb128 v0.2.6
[INFO] [stderr]    Compiling bumpalo v3.20.2
[INFO] [stderr]    Compiling wasmer-compiler-cranelift v2.3.0
[INFO] [stderr]    Compiling getrandom v0.2.17
[INFO] [stderr]    Compiling memmap2 v0.5.10
[INFO] [stderr]    Compiling getrandom v0.4.2
[INFO] [stderr]    Compiling ahash v0.7.8
[INFO] [stderr]    Compiling parking_lot_core v0.9.12
[INFO] [stderr]    Compiling region v3.0.2
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling tempfile v3.27.0
[INFO] [stderr]    Compiling hashbrown v0.12.3
[INFO] [stderr]    Compiling hashbrown v0.11.2
[INFO] [stderr]    Compiling serde_bytes v0.11.19
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling parking_lot v0.12.5
[INFO] [stderr]    Compiling tracing v0.1.44
[INFO] [stderr]    Compiling wast v247.0.0
[INFO] [stderr]    Compiling which v4.4.2
[INFO] [stderr]    Compiling futures-util v0.3.32
[INFO] [stderr]    Compiling memmap v0.7.0
[INFO] [stderr]    Compiling darling_macro v0.21.3
[INFO] [stderr]    Compiling rkyv v0.7.46
[INFO] [stderr]    Compiling canonical v0.7.1
[INFO] [stderr]    Compiling backtrace v0.3.76
[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/canonical-0.7.1/src/lib.rs:16:1
[INFO] [stdout]    |
[INFO] [stdout] 16 | #![feature(never_type)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling loupe v0.1.3
[INFO] [stderr]    Compiling gimli v0.26.2
[INFO] [stderr]    Compiling darling v0.21.3
[INFO] [stderr]    Compiling cranelift-codegen v0.82.3
[INFO] [stderr]    Compiling enumset_derive v0.14.0
[INFO] [stderr]    Compiling object v0.28.4
[INFO] [stderr]    Compiling darling_macro v0.13.4
[INFO] [stderr]    Compiling parking_lot v0.7.1
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `canonical` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "532745fece113a204980b779ede3b2b9a1f846e5ddc8b61bc2d289764e36e92e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "532745fece113a204980b779ede3b2b9a1f846e5ddc8b61bc2d289764e36e92e", kill_on_drop: false }`
[INFO] [stdout] 532745fece113a204980b779ede3b2b9a1f846e5ddc8b61bc2d289764e36e92e
