[INFO] fetching crate sim1h 0.0.34-alpha1...
[INFO] checking sim1h-0.0.34-alpha1 against beta-2019-10-27 for pr-65897
[INFO] extracting crate sim1h 0.0.34-alpha1 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate sim1h 0.0.34-alpha1 on toolchain beta-2019-10-27
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2019-10-27" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate sim1h 0.0.34-alpha1
[INFO] finished tweaking crates.io crate sim1h 0.0.34-alpha1
[INFO] tweaked toml for crates.io crate sim1h 0.0.34-alpha1 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2019-10-27" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2019-10-27" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=allow" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2019-10-27" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] d1cf48bd8990bad3fd399135fe57ff0f5482a875929b5a88cfd7258f816f16de
[INFO] running `"docker" "start" "-a" "d1cf48bd8990bad3fd399135fe57ff0f5482a875929b5a88cfd7258f816f16de"`
[INFO] [stderr]    Compiling syn v0.15.31
[INFO] [stderr]    Compiling regex v1.1.2
[INFO] [stderr]     Checking futures-core-preview v0.3.0-alpha.17
[INFO] [stderr]     Checking futures-io-preview v0.3.0-alpha.17
[INFO] [stderr]     Checking sha1 v0.5.0
[INFO] [stderr]    Compiling holochain_json_api v0.0.17
[INFO] [stderr]    Compiling holochain_persistence_api v0.0.10
[INFO] [stderr]    Compiling holochain_core_types v0.0.34
[INFO] [stderr]     Checking memory_units v0.3.0
[INFO] [stderr]     Checking detach v0.0.19
[INFO] [stderr]    Compiling backtrace v0.3.27
[INFO] [stderr]     Checking colored v1.7.0
[INFO] [stderr]     Checking futures-timer v0.1.1
[INFO] [stderr]     Checking hcid v0.0.6
[INFO] [stderr]    Compiling proc-macro-hack v0.4.2
[INFO] [stderr]     Checking futures-sink-preview v0.3.0-alpha.17
[INFO] [stderr]     Checking crossbeam-channel v0.3.8
[INFO] [stderr]    Compiling ryu v0.2.8
[INFO] [stderr]    Compiling quote v0.6.11
[INFO] [stderr]    Compiling mashup-impl v0.1.9
[INFO] [stderr]     Checking parity-wasm v0.31.3
[INFO] [stderr]    Compiling syn v0.12.15
[INFO] [stderr]     Checking uuid v0.7.1
[INFO] [stderr]     Checking futures-channel-preview v0.3.0-alpha.17
[INFO] [stderr]     Checking futures-backoff v0.1.0
[INFO] [stderr]     Checking openssl v0.10.25
[INFO] [stderr]     Checking uuid v0.4.0
[INFO] [stderr]    Compiling dynomite-derive v0.5.2
[INFO] [stderr]     Checking futures-util-preview v0.3.0-alpha.17
[INFO] [stderr]     Checking multihash v0.8.0
[INFO] [stderr]     Checking mashup v0.1.9
[INFO] [stderr]     Checking failure v0.1.6
[INFO] [stderr]     Checking rust-base58 v0.0.4
[INFO] [stderr]     Checking wasmi v0.4.4
[INFO] [stderr]     Checking futures-executor-preview v0.3.0-alpha.17
[INFO] [stderr]    Compiling synstructure v0.10.2
[INFO] [stderr]     Checking futures-preview v0.3.0-alpha.17
[INFO] [stderr]    Compiling shrinkwraprs v0.2.1
[INFO] [stderr]    Compiling serde_derive v1.0.89
[INFO] [stderr]    Compiling trackable_derive v0.1.2
[INFO] [stderr]    Compiling zeroize_derive v0.9.3
[INFO] [stderr]     Checking trackable v0.2.23
[INFO] [stderr]     Checking zeroize v0.9.2
[INFO] [stderr]     Checking thrift_codec v0.1.1
[INFO] [stderr]     Checking rustracing v0.2.0
[INFO] [stderr]     Checking rustracing_jaeger v0.2.1
[INFO] [stderr]     Checking holochain_tracing v0.0.1
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/holochain_tracing-0.0.1/src/lib.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(rustc_private)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0554`.
[INFO] [stderr] error: could not compile `holochain_tracing`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "d1cf48bd8990bad3fd399135fe57ff0f5482a875929b5a88cfd7258f816f16de"`
[INFO] running `"docker" "rm" "-f" "d1cf48bd8990bad3fd399135fe57ff0f5482a875929b5a88cfd7258f816f16de"`
[INFO] [stdout] d1cf48bd8990bad3fd399135fe57ff0f5482a875929b5a88cfd7258f816f16de