[INFO] fetching crate code-hasher 0.1.0...
[INFO] checking code-hasher-0.1.0 against 1.55.0 for beta-1.56-3
[INFO] extracting crate code-hasher 0.1.0 into /workspace/builds/worker-31/source
[INFO] validating manifest of crates.io crate code-hasher 0.1.0 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate code-hasher 0.1.0
[INFO] finished tweaking crates.io crate code-hasher 0.1.0
[INFO] tweaked toml for crates.io crate code-hasher 0.1.0 written to /workspace/builds/worker-31/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "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 merlin v3.0.0
[INFO] [stderr]   Downloaded blake3 v0.3.8
[INFO] [stderr]   Downloaded derive-hex v0.1.2
[INFO] [stderr]   Downloaded dusk-bytes v0.1.5
[INFO] [stderr]   Downloaded dusk-jubjub v0.10.1
[INFO] [stderr]   Downloaded dusk-bls12_381 v0.8.0
[INFO] [stderr]   Downloaded dusk-plonk v0.8.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-31/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-31/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 724518a8451ceae8617baaf6702877d0e189a7558ddc1946d9e592f87801cec1
[INFO] running `Command { std: "docker" "start" "-a" "724518a8451ceae8617baaf6702877d0e189a7558ddc1946d9e592f87801cec1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "724518a8451ceae8617baaf6702877d0e189a7558ddc1946d9e592f87801cec1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "724518a8451ceae8617baaf6702877d0e189a7558ddc1946d9e592f87801cec1", kill_on_drop: false }`
[INFO] [stdout] 724518a8451ceae8617baaf6702877d0e189a7558ddc1946d9e592f87801cec1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-31/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-31/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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fdc637704f09b440bd2237a3a880149282286cb28e4ca16a63f141eff0ea998b
[INFO] running `Command { std: "docker" "start" "-a" "fdc637704f09b440bd2237a3a880149282286cb28e4ca16a63f141eff0ea998b", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.80
[INFO] [stderr]     Checking subtle v2.4.1
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking arrayref v0.3.6
[INFO] [stderr]     Checking keccak v0.1.0
[INFO] [stderr]     Checking ahash v0.4.7
[INFO] [stderr]     Checking constant_time_eq v0.1.5
[INFO] [stderr]    Compiling arrayvec v0.5.2
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]    Compiling blake3 v0.3.8
[INFO] [stderr]    Compiling typenum v1.14.0
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking hashbrown v0.9.1
[INFO] [stderr]     Checking crypto-mac v0.8.0
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]     Checking code-hasher v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling synstructure v0.12.6
[INFO] [stderr]    Compiling derive-hex v0.1.2
[INFO] [stderr]    Compiling zeroize_derive v1.2.0
[INFO] [stderr]     Checking dusk-bytes v0.1.5
[INFO] [stderr]     Checking zeroize v1.4.2
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/dusk-bytes-0.1.5/src/lib.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | #![feature(const_panic)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `dusk-bytes` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "fdc637704f09b440bd2237a3a880149282286cb28e4ca16a63f141eff0ea998b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fdc637704f09b440bd2237a3a880149282286cb28e4ca16a63f141eff0ea998b", kill_on_drop: false }`
[INFO] [stdout] fdc637704f09b440bd2237a3a880149282286cb28e4ca16a63f141eff0ea998b
