[INFO] fetching crate piecrust 0.29.0-rc.2...
[INFO] testing piecrust-0.29.0-rc.2 against beta-2025-10-28 for beta-1.92-2
[INFO] extracting crate piecrust 0.29.0-rc.2 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate piecrust 0.29.0-rc.2
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate piecrust 0.29.0-rc.2
[INFO] tweaked toml for crates.io crate piecrust 0.29.0-rc.2 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate piecrust 0.29.0-rc.2 on toolchain beta-2025-10-28
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-10-28" "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-2025-10-28" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 214 packages to latest compatible versions
[INFO] [stderr]       Adding bytecheck v0.6.12 (available: v0.8.2)
[INFO] [stderr]       Adding const-decoder v0.3.0 (available: v0.4.0)
[INFO] [stderr]       Adding criterion v0.4.0 (available: v0.7.0)
[INFO] [stderr]       Adding dusk-plonk v0.14.1 (available: v0.21.0)
[INFO] [stderr]       Adding half v2.4.1 (available: v2.7.1)
[INFO] [stderr]       Adding memmap2 v0.7.1 (available: v0.9.9)
[INFO] [stderr]       Adding rand v0.8.5 (available: v0.9.2)
[INFO] [stderr]       Adding rkyv v0.7.45 (available: v0.8.12)
[INFO] [stderr]       Adding thiserror v1.0.69 (available: v2.0.17)
[INFO] [stderr]       Adding wasmtime-asm-macros v20.0.0 (available: v20.0.2)
[INFO] [stderr]       Adding wasmtime-jit-icache-coherence v20.0.0 (available: v20.0.2)
[INFO] [stderr]       Adding wasmtime-slab v20.0.0 (available: v20.0.2)
[INFO] [stderr]       Adding wasmtime-versioned-export-macros v20.0.0 (available: v20.0.2)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-10-28" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f7c41807ad417c7d976b449d7d144b8bdb15b6716a34097472143be28144405d
[INFO] running `Command { std: "docker" "start" "-a" "f7c41807ad417c7d976b449d7d144b8bdb15b6716a34097472143be28144405d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f7c41807ad417c7d976b449d7d144b8bdb15b6716a34097472143be28144405d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f7c41807ad417c7d976b449d7d144b8bdb15b6716a34097472143be28144405d", kill_on_drop: false }`
[INFO] [stdout] f7c41807ad417c7d976b449d7d144b8bdb15b6716a34097472143be28144405d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 637c1248cf70ceb89d4acbc4e4e59c322720cf163f0125fc4f25ec2b7dabd346
[INFO] running `Command { std: "docker" "start" "-a" "637c1248cf70ceb89d4acbc4e4e59c322720cf163f0125fc4f25ec2b7dabd346", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-ident v1.0.22
[INFO] [stderr]    Compiling cfg-if v1.0.4
[INFO] [stderr]    Compiling once_cell v1.21.3
[INFO] [stderr]    Compiling zerocopy v0.8.27
[INFO] [stderr]    Compiling ahash v0.8.12
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling indexmap v2.12.0
[INFO] [stderr]    Compiling bitflags v2.10.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.103
[INFO] [stderr]    Compiling target-lexicon v0.12.16
[INFO] [stderr]    Compiling cranelift-isle v0.107.2
[INFO] [stderr]    Compiling log v0.4.28
[INFO] [stderr]    Compiling cranelift-codegen-shared v0.107.2
[INFO] [stderr]    Compiling getrandom v0.2.16
[INFO] [stderr]    Compiling find-msvc-tools v0.1.4
[INFO] [stderr]    Compiling cranelift-codegen-meta v0.107.2
[INFO] [stderr]    Compiling gimli v0.28.1
[INFO] [stderr]    Compiling thiserror v1.0.69
[INFO] [stderr]    Compiling cc v1.2.44
[INFO] [stderr]    Compiling quote v1.0.41
[INFO] [stderr]    Compiling syn v2.0.108
[INFO] [stderr]    Compiling rustc-hash v1.1.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.21
[INFO] [stderr]    Compiling crc32fast v1.5.0
[INFO] [stderr]    Compiling arbitrary v1.4.2
[INFO] [stderr]    Compiling slice-group-by v0.3.1
[INFO] [stderr]    Compiling hashbrown v0.14.5
[INFO] [stderr]    Compiling hashbrown v0.13.2
[INFO] [stderr]    Compiling semver v1.0.27
[INFO] [stderr]    Compiling smallvec v1.15.1
[INFO] [stderr]    Compiling wasmparser v0.202.0
[INFO] [stderr]    Compiling cranelift-control v0.107.2
[INFO] [stderr]    Compiling ahash v0.7.8
[INFO] [stderr]    Compiling bytecheck v0.6.12
[INFO] [stderr]    Compiling bumpalo v3.19.0
[INFO] [stderr]    Compiling memchr v2.7.6
[INFO] [stderr]    Compiling regalloc2 v0.9.3
[INFO] [stderr]    Compiling rustix v1.1.2
[INFO] [stderr]    Compiling cranelift-codegen v0.107.2
[INFO] [stderr]    Compiling rend v0.4.2
[INFO] [stderr]    Compiling simdutf8 v0.1.5
[INFO] [stderr]    Compiling linux-raw-sys v0.11.0
[INFO] [stderr]    Compiling memoffset v0.9.1
[INFO] [stderr]    Compiling object v0.33.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.18
[INFO] [stderr]    Compiling rayon-core v1.13.0
[INFO] [stderr]    Compiling rkyv v0.7.45
[INFO] [stderr]    Compiling rustix v0.38.44
[INFO] [stderr]    Compiling hashbrown v0.12.3
[INFO] [stderr]    Compiling crossbeam-deque v0.8.6
[INFO] [stderr]    Compiling ptr_meta_derive v0.1.4
[INFO] [stderr]    Compiling bytecheck_derive v0.6.12
[INFO] [stderr]    Compiling ptr_meta v0.1.4
[INFO] [stderr]    Compiling rkyv_derive v0.7.45
[INFO] [stderr]    Compiling itertools v0.12.1
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]    Compiling wasmtime-versioned-export-macros v20.0.0
[INFO] [stderr]    Compiling dusk-wasmtime-runtime v21.0.0-alpha
[INFO] [stderr]    Compiling seahash v4.1.0
[INFO] [stderr]    Compiling linux-raw-sys v0.4.15
[INFO] [stderr]    Compiling serde_json v1.0.145
[INFO] [stderr]    Compiling getrandom v0.3.4
[INFO] [stderr]    Compiling memfd v0.6.5
[INFO] [stderr]    Compiling derive-hex v0.1.2
[INFO] [stderr]    Compiling blake3 v1.8.2
[INFO] [stderr]    Compiling ppv-lite86 v0.2.21
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling wasmtime-asm-macros v20.0.0
[INFO] [stderr]    Compiling wasmtime-slab v20.0.0
[INFO] [stderr]    Compiling sptr v0.3.2
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rayon v1.11.0
[INFO] [stderr]    Compiling dusk-bytes v0.1.7
[INFO] [stderr]    Compiling cranelift-entity v0.107.2
[INFO] [stderr]    Compiling tracing-attributes v0.1.30
[INFO] [stderr]    Compiling tracing-core v0.1.34
[INFO] [stderr]    Compiling cranelift-bforest v0.107.2
[INFO] [stderr]    Compiling wasmtime-types v20.0.2
[INFO] [stderr]    Compiling wasmtime-jit-icache-coherence v20.0.0
[INFO] [stderr]    Compiling rangemap v1.6.0
[INFO] [stderr]    Compiling hex v0.4.3
[INFO] [stderr]    Compiling fastrand v2.3.0
[INFO] [stderr]    Compiling arrayvec v0.7.6
[INFO] [stderr]    Compiling arrayref v0.3.9
[INFO] [stderr]    Compiling tempfile v3.23.0
[INFO] [stderr]    Compiling tracing v0.1.41
[INFO] [stderr]    Compiling dusk-wasmtime-environ v21.0.0-alpha
[INFO] [stderr]    Compiling crumbles v0.3.0
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling memmap2 v0.7.1
[INFO] [stderr]    Compiling const-decoder v0.3.0
[INFO] [stderr]    Compiling dusk-merkle v0.5.3
[INFO] [stderr]    Compiling piecrust-uplink v0.19.0-rc.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/piecrust-uplink-0.19.0-rc.0/src/lib.rs:63:1
[INFO] [stdout]    |
[INFO] [stdout] 63 | #![feature(lang_items)]
[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 `piecrust-uplink` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "637c1248cf70ceb89d4acbc4e4e59c322720cf163f0125fc4f25ec2b7dabd346", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "637c1248cf70ceb89d4acbc4e4e59c322720cf163f0125fc4f25ec2b7dabd346", kill_on_drop: false }`
[INFO] [stdout] 637c1248cf70ceb89d4acbc4e4e59c322720cf163f0125fc4f25ec2b7dabd346
