[INFO] fetching crate dusk-forge 0.1.0...
[INFO] testing dusk-forge-0.1.0 against 1.90.0 for beta-1.91-3
[INFO] extracting crate dusk-forge 0.1.0 into /workspace/builds/worker-2-tc1/source
[INFO] removed /workspace/builds/worker-2-tc1/source/rust-toolchain.toml
[INFO] started tweaking crates.io crate dusk-forge 0.1.0
[INFO] finished tweaking crates.io crate dusk-forge 0.1.0
[INFO] tweaked toml for crates.io crate dusk-forge 0.1.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate dusk-forge 0.1.0 on toolchain 1.90.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate dusk-forge 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ptr_meta_derive v0.1.4
[INFO] [stderr]   Downloaded bytecheck_derive v0.6.12
[INFO] [stderr]   Downloaded rkyv_derive v0.7.39
[INFO] [stderr]   Downloaded seahash v4.1.0
[INFO] [stderr]   Downloaded bytecheck v0.6.12
[INFO] [stderr]   Downloaded ptr_meta v0.1.4
[INFO] [stderr]   Downloaded derive-hex v0.1.2
[INFO] [stderr]   Downloaded phoenix-circuits v0.5.0
[INFO] [stderr]   Downloaded jubjub-elgamal v0.1.0
[INFO] [stderr]   Downloaded dusk-jubjub v0.14.1
[INFO] [stderr]   Downloaded dusk-poseidon v0.40.0
[INFO] [stderr]   Downloaded jubjub-schnorr v0.5.0
[INFO] [stderr]   Downloaded rkyv v0.7.39
[INFO] [stderr]   Downloaded piecrust-uplink v0.17.3
[INFO] [stderr]   Downloaded aes-gcm v0.10.3
[INFO] [stderr]   Downloaded blake2b_simd v1.0.2
[INFO] [stderr]   Downloaded dusk-bytes v0.1.7
[INFO] [stderr]   Downloaded dusk-safe v0.2.1
[INFO] [stderr]   Downloaded poseidon-merkle v0.7.0
[INFO] [stderr]   Downloaded inout v0.1.3
[INFO] [stderr]   Downloaded dusk-bls12_381 v0.13.0
[INFO] [stderr]   Downloaded ghash v0.5.1
[INFO] [stderr]   Downloaded bls12_381-bls v0.4.0
[INFO] [stderr]   Downloaded cpufeatures v0.2.16
[INFO] [stderr]   Downloaded phoenix-core v0.33.1
[INFO] [stderr]   Downloaded dusk-merkle v0.5.3
[INFO] [stderr]   Downloaded rend v0.3.6
[INFO] [stderr]   Downloaded dusk-core v0.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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" "+1.90.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c69e79c350c888f8e0d72eadfe87d56bcc985febbe85b0837d33abb6adcf5eb4
[INFO] running `Command { std: "docker" "start" "-a" "c69e79c350c888f8e0d72eadfe87d56bcc985febbe85b0837d33abb6adcf5eb4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c69e79c350c888f8e0d72eadfe87d56bcc985febbe85b0837d33abb6adcf5eb4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c69e79c350c888f8e0d72eadfe87d56bcc985febbe85b0837d33abb6adcf5eb4", kill_on_drop: false }`
[INFO] [stdout] c69e79c350c888f8e0d72eadfe87d56bcc985febbe85b0837d33abb6adcf5eb4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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" "+1.90.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a32a0863ba8edac4d360f77bfd447e61909607cbf0733473ed2976ef57232a81
[INFO] running `Command { std: "docker" "start" "-a" "a32a0863ba8edac4d360f77bfd447e61909607cbf0733473ed2976ef57232a81", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.93
[INFO] [stderr]    Compiling unicode-ident v1.0.14
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling subtle v2.6.1
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling libc v0.2.169
[INFO] [stderr]    Compiling ahash v0.7.8
[INFO] [stderr]    Compiling bytecheck v0.6.12
[INFO] [stderr]    Compiling rend v0.3.6
[INFO] [stderr]    Compiling once_cell v1.20.2
[INFO] [stderr]    Compiling rkyv v0.7.39
[INFO] [stderr]    Compiling seahash v4.1.0
[INFO] [stderr]    Compiling constant_time_eq v0.3.1
[INFO] [stderr]    Compiling typenum v1.17.0
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]    Compiling arrayref v0.3.9
[INFO] [stderr]    Compiling radium v0.7.0
[INFO] [stderr]    Compiling arrayvec v0.7.6
[INFO] [stderr]    Compiling tap v1.0.1
[INFO] [stderr]    Compiling funty v2.0.0
[INFO] [stderr]    Compiling ff v0.13.0
[INFO] [stderr]    Compiling cpufeatures v0.2.16
[INFO] [stderr]    Compiling opaque-debug v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling wyz v0.5.1
[INFO] [stderr]    Compiling blake2b_simd v1.0.2
[INFO] [stderr]    Compiling group v0.13.0
[INFO] [stderr]    Compiling pairing v0.23.0
[INFO] [stderr]    Compiling quote v1.0.38
[INFO] [stderr]    Compiling bitvec v1.0.1
[INFO] [stderr]    Compiling syn v2.0.96
[INFO] [stderr]    Compiling crypto-common v0.1.6
[INFO] [stderr]    Compiling block-buffer v0.10.4
[INFO] [stderr]    Compiling inout v0.1.3
[INFO] [stderr]    Compiling universal-hash v0.5.1
[INFO] [stderr]    Compiling aead v0.5.2
[INFO] [stderr]    Compiling polyval v0.6.2
[INFO] [stderr]    Compiling digest v0.10.7
[INFO] [stderr]    Compiling ghash v0.5.1
[INFO] [stderr]    Compiling cipher v0.4.4
[INFO] [stderr]    Compiling getrandom v0.2.15
[INFO] [stderr]    Compiling hmac v0.12.1
[INFO] [stderr]    Compiling sha2 v0.10.8
[INFO] [stderr]    Compiling hkdf v0.12.4
[INFO] [stderr]    Compiling ctr v0.9.2
[INFO] [stderr]    Compiling aes v0.8.4
[INFO] [stderr]    Compiling hashbrown v0.12.3
[INFO] [stderr]    Compiling aes-gcm v0.10.3
[INFO] [stderr]    Compiling ptr_meta_derive v0.1.4
[INFO] [stderr]    Compiling bytecheck_derive v0.6.12
[INFO] [stderr]    Compiling rkyv_derive v0.7.39
[INFO] [stderr]    Compiling derive-hex v0.1.2
[INFO] [stderr]    Compiling ptr_meta v0.1.4
[INFO] [stderr]    Compiling dusk-bytes v0.1.7
[INFO] [stderr]    Compiling zeroize_derive v1.4.2
[INFO] [stderr]    Compiling zeroize v1.8.1
[INFO] [stderr]    Compiling dusk-safe v0.2.1
[INFO] [stderr]    Compiling dusk-bls12_381 v0.13.0
[INFO] [stderr]    Compiling dusk-merkle v0.5.3
[INFO] [stderr]    Compiling piecrust-uplink v0.17.3
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/piecrust-uplink-0.17.3/src/lib.rs:63:1
[INFO] [stdout]    |
[INFO] [stdout] 63 | #![feature(lang_items, panic_info_message)]
[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" "a32a0863ba8edac4d360f77bfd447e61909607cbf0733473ed2976ef57232a81", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a32a0863ba8edac4d360f77bfd447e61909607cbf0733473ed2976ef57232a81", kill_on_drop: false }`
[INFO] [stdout] a32a0863ba8edac4d360f77bfd447e61909607cbf0733473ed2976ef57232a81