[INFO] fetching crate casper-engine-grpc-server 0.6.3...
[INFO] testing casper-engine-grpc-server-0.6.3 against beta-2022-02-22 for beta-1.60-1
[INFO] extracting crate casper-engine-grpc-server 0.6.3 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate casper-engine-grpc-server 0.6.3 on toolchain beta-2022-02-22
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate casper-engine-grpc-server 0.6.3
[INFO] finished tweaking crates.io crate casper-engine-grpc-server 0.6.3
[INFO] tweaked toml for crates.io crate casper-engine-grpc-server 0.6.3 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate crates.io crate casper-engine-grpc-server 0.6.3 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded zeroize v1.2.0
[INFO] [stderr]   Downloaded zeroize_derive v1.0.1
[INFO] [stderr]   Downloaded parity-wasm v0.42.1
[INFO] [stderr]   Downloaded sha2 v0.9.2
[INFO] [stderr]   Downloaded serde v1.0.119
[INFO] [stderr]   Downloaded curve25519-dalek v3.0.2
[INFO] [stderr]   Downloaded thiserror-impl v1.0.23
[INFO] [stderr]   Downloaded tracing-attributes v0.1.11
[INFO] [stderr]   Downloaded bincode v1.3.1
[INFO] [stderr]   Downloaded schemars v0.8.0
[INFO] [stderr]   Downloaded tracing-core v0.1.17
[INFO] [stderr]   Downloaded pin-project-lite v0.2.4
[INFO] [stderr]   Downloaded byteorder v1.4.2
[INFO] [stderr]   Downloaded tracing v0.1.22
[INFO] [stderr]   Downloaded rand v0.8.2
[INFO] [stderr]   Downloaded futures v0.1.30
[INFO] [stderr]   Downloaded regex-syntax v0.6.22
[INFO] [stderr]   Downloaded anyhow v1.0.38
[INFO] [stderr]   Downloaded bstr v0.2.14
[INFO] [stderr]   Downloaded getrandom v0.2.1
[INFO] [stderr]   Downloaded ctrlc v3.1.7
[INFO] [stderr]   Downloaded syn v1.0.58
[INFO] [stderr]   Downloaded thiserror v1.0.23
[INFO] [stderr]   Downloaded ed25519 v1.0.3
[INFO] [stderr]   Downloaded ecdsa v0.7.2
[INFO] [stderr]   Downloaded elliptic-curve v0.5.0
[INFO] [stderr]   Downloaded k256 v0.4.2
[INFO] [stderr]   Downloaded schemars_derive v0.8.0
[INFO] [stderr]   Downloaded blake2 v0.9.1
[INFO] [stderr]   Downloaded serde_derive v1.0.119
[INFO] [stderr]   Downloaded csv v1.1.5
[INFO] [stderr]   Downloaded datasize v0.2.3
[INFO] [stderr]   Downloaded rand_core v0.6.1
[INFO] [stderr]   Downloaded datasize_derive v0.2.3
[INFO] [stderr]   Downloaded casper-execution-engine v0.6.3
[INFO] [stderr]   Downloaded casper-types v0.6.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+beta-2022-02-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3ec5e0096ad34f91df68fef8458a74f55988763303957fcc2ee8dbe3fb02779f
[INFO] running `Command { std: "docker" "start" "-a" "3ec5e0096ad34f91df68fef8458a74f55988763303957fcc2ee8dbe3fb02779f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3ec5e0096ad34f91df68fef8458a74f55988763303957fcc2ee8dbe3fb02779f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3ec5e0096ad34f91df68fef8458a74f55988763303957fcc2ee8dbe3fb02779f", kill_on_drop: false }`
[INFO] [stdout] 3ec5e0096ad34f91df68fef8458a74f55988763303957fcc2ee8dbe3fb02779f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+beta-2022-02-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1336d3fbd0c432b5dac6315564fd58b9931f832eb33a63c6b4ac566e5da1adbd
[INFO] running `Command { std: "docker" "start" "-a" "1336d3fbd0c432b5dac6315564fd58b9931f832eb33a63c6b4ac566e5da1adbd", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.82
[INFO] [stderr]    Compiling syn v1.0.58
[INFO] [stderr]    Compiling serde_derive v1.0.119
[INFO] [stderr]    Compiling serde v1.0.119
[INFO] [stderr]    Compiling byteorder v1.4.2
[INFO] [stderr]    Compiling log v0.4.13
[INFO] [stderr]    Compiling futures v0.1.30
[INFO] [stderr]    Compiling getrandom v0.2.1
[INFO] [stderr]    Compiling slab v0.4.2
[INFO] [stderr]    Compiling subtle v2.4.0
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling cc v1.0.66
[INFO] [stderr]    Compiling crunchy v0.2.2
[INFO] [stderr]    Compiling itoa v0.4.7
[INFO] [stderr]    Compiling serde_json v1.0.61
[INFO] [stderr]    Compiling hashbrown v0.9.1
[INFO] [stderr]    Compiling schemars v0.8.0
[INFO] [stderr]    Compiling anyhow v1.0.38
[INFO] [stderr]    Compiling rustc-hex v2.1.0
[INFO] [stderr]    Compiling regex-syntax v0.6.22
[INFO] [stderr]    Compiling hex v0.4.2
[INFO] [stderr]    Compiling once_cell v1.5.2
[INFO] [stderr]    Compiling pin-project-lite v0.2.4
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling memoffset v0.5.6
[INFO] [stderr]    Compiling num-bigint v0.3.1
[INFO] [stderr]    Compiling indexmap v1.6.1
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]    Compiling num-rational v0.3.2
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling tracing-core v0.1.17
[INFO] [stderr]    Compiling itertools v0.9.0
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[INFO] [stderr]    Compiling sha2 v0.9.2
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[INFO] [stderr]    Compiling base64 v0.9.3
[INFO] [stderr]    Compiling blake2 v0.9.1
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[INFO] [stderr]    Compiling lmdb-sys v0.8.0
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[INFO] [stderr]    Compiling dirs-sys v0.3.5
[INFO] [stderr]    Compiling rand_core v0.6.1
[INFO] [stderr]    Compiling futures-cpupool v0.1.8
[INFO] [stderr]    Compiling bytes v0.4.12
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling parking_lot v0.9.0
[INFO] [stderr]    Compiling dirs v3.0.1
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.3.0
[INFO] [stderr]    Compiling chrono v0.4.19
[INFO] [stderr]    Compiling signature v1.2.2
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand_pcg v0.2.1
[INFO] [stderr]    Compiling rand_xorshift v0.2.0
[INFO] [stderr]    Compiling protobuf v2.8.2
[INFO] [stderr]    Compiling tempdir v0.3.7
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling rand v0.8.2
[INFO] [stderr]    Compiling lmdb v0.8.0
[INFO] [stderr]    Compiling wasmi v0.6.2
[INFO] [stderr]    Compiling tempfile v3.2.0
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling serde_derive_internals v0.25.0
[INFO] [stderr]    Compiling rusty-fork v0.3.0
[INFO] [stderr]    Compiling proptest v0.10.1
[INFO] [stderr]    Compiling ctrlc v3.1.7
[INFO] [stderr]    Compiling zeroize_derive v1.0.1
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling datasize_derive v0.2.3
[INFO] [stderr]    Compiling schemars_derive v0.8.0
[INFO] [stderr]    Compiling tracing-attributes v0.1.11
[INFO] [stderr]    Compiling thiserror-impl v1.0.23
[INFO] [stderr]    Compiling num-derive v0.3.3
[INFO] [stderr]    Compiling protobuf-codegen v2.8.2
[INFO] [stderr]    Compiling failure v0.1.8
[INFO] [stderr]    Compiling grpc-compiler v0.6.2
[INFO] [stderr]    Compiling datasize v0.2.3
[INFO] [stderr]    Compiling zeroize v1.2.0
[INFO] [stderr]    Compiling elliptic-curve v0.5.0
[INFO] [stderr]    Compiling curve25519-dalek v3.0.2
[INFO] [stderr]    Compiling thiserror v1.0.23
[INFO] [stderr]    Compiling tracing v0.1.22
[INFO] [stderr]    Compiling ecdsa v0.7.2
[INFO] [stderr]    Compiling k256 v0.4.2
[INFO] [stderr]    Compiling serde_bytes v0.11.5
[INFO] [stderr]    Compiling ed25519 v1.0.3
[INFO] [stderr]    Compiling bstr v0.2.14
[INFO] [stderr]    Compiling hex-buffer-serde v0.2.2
[INFO] [stderr]    Compiling uuid v0.8.2
[INFO] [stderr]    Compiling bincode v1.3.1
[INFO] [stderr]    Compiling ed25519-dalek v1.0.1
[INFO] [stderr]    Compiling tokio-io v0.1.13
[INFO] [stderr]    Compiling mio v0.6.23
[INFO] [stderr]    Compiling tokio-threadpool v0.1.18
[INFO] [stderr]    Compiling tls-api v0.1.22
[INFO] [stderr]    Compiling protoc v2.8.2
[INFO] [stderr]    Compiling log v0.3.9
[INFO] [stderr]    Compiling pwasm-utils v0.12.0
[INFO] [stderr]    Compiling tls-api-stub v0.1.22
[INFO] [stderr]    Compiling num v0.3.1
[INFO] [stderr]    Compiling protoc-rust v2.8.2
[INFO] [stderr]    Compiling csv v1.1.5
[INFO] [stderr]    Compiling protoc-rust-grpc v0.6.2
[INFO] [stderr]    Compiling tokio-codec v0.1.2
[INFO] [stderr]    Compiling tokio-tls-api v0.1.22
[INFO] [stderr]    Compiling tokio-fs v0.1.7
[INFO] [stderr]    Compiling tokio-reactor v0.1.12
[INFO] [stderr]    Compiling mio-uds v0.6.8
[INFO] [stderr]    Compiling casper-engine-grpc-server v0.6.3 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling tokio-udp v0.1.6
[INFO] [stderr]    Compiling tokio-uds v0.2.7
[INFO] [stderr]    Compiling tokio-tcp v0.1.4
[INFO] [stderr]    Compiling tokio v0.1.22
[INFO] [stderr]    Compiling casper-types v0.6.3
[INFO] [stderr]    Compiling tokio-core v0.1.18
[INFO] [stderr]    Compiling tokio-uds v0.1.7
[INFO] [stderr]    Compiling httpbis v0.7.0
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/casper-types-0.6.3/src/lib.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     feature(min_specialization, try_reserve)
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling grpc v0.6.2
[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 `casper-types` 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" "1336d3fbd0c432b5dac6315564fd58b9931f832eb33a63c6b4ac566e5da1adbd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1336d3fbd0c432b5dac6315564fd58b9931f832eb33a63c6b4ac566e5da1adbd", kill_on_drop: false }`
[INFO] [stdout] 1336d3fbd0c432b5dac6315564fd58b9931f832eb33a63c6b4ac566e5da1adbd