[INFO] fetching crate casperlabs-engine-shared 0.7.1...
[INFO] testing casperlabs-engine-shared-0.7.1 against 1.59.0 for beta-1.60-1
[INFO] extracting crate casperlabs-engine-shared 0.7.1 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate casperlabs-engine-shared 0.7.1 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] started tweaking crates.io crate casperlabs-engine-shared 0.7.1
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate casperlabs-engine-shared 0.7.1
[INFO] tweaked toml for crates.io crate casperlabs-engine-shared 0.7.1 written to /workspace/builds/worker-5/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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] c1e3ddde50e07491494a7386223a51cfafcc26ce8f1b1c05ea837554b3017ebc
[INFO] running `Command { std: "docker" "start" "-a" "c1e3ddde50e07491494a7386223a51cfafcc26ce8f1b1c05ea837554b3017ebc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c1e3ddde50e07491494a7386223a51cfafcc26ce8f1b1c05ea837554b3017ebc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c1e3ddde50e07491494a7386223a51cfafcc26ce8f1b1c05ea837554b3017ebc", kill_on_drop: false }`
[INFO] [stdout] c1e3ddde50e07491494a7386223a51cfafcc26ce8f1b1c05ea837554b3017ebc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] d9bd9b7f49ac783dc80aa3c84599e566af3497e99e841d9edf22adbcee33d2a9
[INFO] running `Command { std: "docker" "start" "-a" "d9bd9b7f49ac783dc80aa3c84599e566af3497e99e841d9edf22adbcee33d2a9", kill_on_drop: false }`
[INFO] [stderr]    Compiling crunchy v0.2.2
[INFO] [stderr]    Compiling fastrand v1.7.0
[INFO] [stderr]    Compiling byteorder v1.4.3
[INFO] [stderr]    Compiling remove_dir_all v0.5.3
[INFO] [stderr]    Compiling subtle v1.0.0
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling rustc-hex v2.1.0
[INFO] [stderr]    Compiling parity-wasm v0.41.0
[INFO] [stderr]    Compiling base16 v0.2.1
[INFO] [stderr]    Compiling match_cfg v0.1.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling value-bag v1.0.0-alpha.8
[INFO] [stderr]    Compiling cmake v0.1.48
[INFO] [stderr]    Compiling wait-timeout v0.2.0
[INFO] [stderr]    Compiling getrandom v0.2.5
[INFO] [stderr]    Compiling ctor v0.1.21
[INFO] [stderr]    Compiling num-derive v0.3.3
[INFO] [stderr]    Compiling serde v1.0.136
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling hostname v0.3.1
[INFO] [stderr]    Compiling crypto-mac v0.7.0
[INFO] [stderr]    Compiling tempfile v3.3.0
[INFO] [stderr]    Compiling uint v0.8.5
[INFO] [stderr]    Compiling blake2 v0.8.1
[INFO] [stderr]    Compiling rusty-fork v0.2.2
[INFO] [stderr]    Compiling wabt-sys v0.8.0
[INFO] [stderr]    Compiling failure v0.1.8
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling proptest v0.9.6
[INFO] [stderr]    Compiling chrono v0.4.19
[INFO] [stderr]    Compiling num v0.2.1
[INFO] [stderr]    Compiling serde_json v1.0.79
[INFO] [stderr]    Compiling uuid v0.8.2
[INFO] [stderr]    Compiling pwasm-utils v0.12.0
[INFO] [stderr]    Compiling casperlabs-types v0.6.1
[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/casperlabs-types-0.6.1/src/lib.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     feature(min_specialization, try_reserve)
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `casperlabs-types` due to previous error
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name casperlabs_types --edition=2018 /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/casperlabs-types-0.6.1/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debuginfo=2 --cfg 'feature="default"' --cfg 'feature="gens"' --cfg 'feature="proptest"' --cfg 'feature="std"' -C metadata=ea56286daaa96fbc -C extra-filename=-ea56286daaa96fbc --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern base16=/opt/rustwide/target/debug/deps/libbase16-6b5c34fff7513909.rmeta --extern bitflags=/opt/rustwide/target/debug/deps/libbitflags-1693f043aa7c36ab.rmeta --extern blake2=/opt/rustwide/target/debug/deps/libblake2-3f3bbd890a35bb4f.rmeta --extern failure=/opt/rustwide/target/debug/deps/libfailure-ceeb2202a9dab210.rmeta --extern hex_fmt=/opt/rustwide/target/debug/deps/libhex_fmt-4063664d054f8ede.rmeta --extern num_derive=/opt/rustwide/target/debug/deps/libnum_derive-bc832217ccb78dc0.so --extern num_integer=/opt/rustwide/target/debug/deps/libnum_integer-953d15970e3f2fa3.rmeta --extern num_traits=/opt/rustwide/target/debug/deps/libnum_traits-4e2e571f195011c7.rmeta --extern proptest=/opt/rustwide/target/debug/deps/libproptest-4726548c3b4272ef.rmeta --extern uint=/opt/rustwide/target/debug/deps/libuint-d1462bf00d93fd5f.rmeta --cap-lints allow --cap-lints=warn` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "d9bd9b7f49ac783dc80aa3c84599e566af3497e99e841d9edf22adbcee33d2a9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d9bd9b7f49ac783dc80aa3c84599e566af3497e99e841d9edf22adbcee33d2a9", kill_on_drop: false }`
[INFO] [stdout] d9bd9b7f49ac783dc80aa3c84599e566af3497e99e841d9edf22adbcee33d2a9