[INFO] fetching crate fullcodec-jubjub 0.2.0...
[INFO] testing fullcodec-jubjub-0.2.0 against 1.59.0 for beta-1.60-1
[INFO] extracting crate fullcodec-jubjub 0.2.0 into /workspace/builds/worker-91/source
[INFO] validating manifest of crates.io crate fullcodec-jubjub 0.2.0 on toolchain 1.59.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-91/source/rust-toolchain
[INFO] started tweaking crates.io crate fullcodec-jubjub 0.2.0
[INFO] finished tweaking crates.io crate fullcodec-jubjub 0.2.0
[INFO] tweaked toml for crates.io crate fullcodec-jubjub 0.2.0 written to /workspace/builds/worker-91/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-91/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-91/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ee6979f797a3e50cb6962391cefefe5535d3974666c6ce4dac01016cebd68faa
[INFO] running `Command { std: "docker" "start" "-a" "ee6979f797a3e50cb6962391cefefe5535d3974666c6ce4dac01016cebd68faa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ee6979f797a3e50cb6962391cefefe5535d3974666c6ce4dac01016cebd68faa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ee6979f797a3e50cb6962391cefefe5535d3974666c6ce4dac01016cebd68faa", kill_on_drop: false }`
[INFO] [stdout] ee6979f797a3e50cb6962391cefefe5535d3974666c6ce4dac01016cebd68faa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-91/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-91/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 48327514e6b65c2e3aa77fc3961804315323705e77904d28d4f437bbced15cb2
[INFO] running `Command { std: "docker" "start" "-a" "48327514e6b65c2e3aa77fc3961804315323705e77904d28d4f437bbced15cb2", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling syn v1.0.86
[INFO] [stderr]    Compiling serde_derive v1.0.136
[INFO] [stderr]    Compiling serde v1.0.136
[INFO] [stderr]    Compiling arrayvec v0.7.2
[INFO] [stderr]    Compiling byte-slice-cast v1.2.1
[INFO] [stderr]    Compiling byteorder v1.4.3
[INFO] [stderr]    Compiling sp-std v3.0.0
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling thiserror-impl v1.0.30
[INFO] [stderr]    Compiling impl-trait-for-tuples v0.2.2
[INFO] [stderr]    Compiling derive-hex v0.1.2
[INFO] [stderr]    Compiling dusk-bytes v0.1.5
[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]    | ^^^^^^^^^^^^^^^^^^^^^^^^ help: remove the attribute
[INFO] [stdout]    |
[INFO] [stdout]    = help: the feature `const_panic` has been stable since 1.57.0 and no longer requires an attribute to enable
[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" "48327514e6b65c2e3aa77fc3961804315323705e77904d28d4f437bbced15cb2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "48327514e6b65c2e3aa77fc3961804315323705e77904d28d4f437bbced15cb2", kill_on_drop: false }`
[INFO] [stdout] 48327514e6b65c2e3aa77fc3961804315323705e77904d28d4f437bbced15cb2