[INFO] cloning repository https://github.com/rajasekarv/native_spark
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rajasekarv/native_spark" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frajasekarv%2Fnative_spark", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frajasekarv%2Fnative_spark'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8533d4b10868dd1a715d1a580f210aaf6b4d6fcd
[INFO] documenting rajasekarv/native_spark against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frajasekarv%2Fnative_spark" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rajasekarv/native_spark on toolchain beta-2020-08-29
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/rajasekarv/native_spark
[INFO] finished tweaking git repo https://github.com/rajasekarv/native_spark
[INFO] tweaked toml for git repo https://github.com/rajasekarv/native_spark written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "fetch" "--locked" "--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 procinfo v0.4.2
[INFO] [stderr]   Downloaded zstd v0.4.28+zstd.1.4.3
[INFO] [stderr]   Downloaded heapless v0.5.5
[INFO] [stderr]   Downloaded metatype v0.2.0
[INFO] [stderr]   Downloaded relative v0.2.2
[INFO] [stderr]   Downloaded serde_traitobject v0.2.7
[INFO] [stderr]   Downloaded dyn-clone v1.0.2
[INFO] [stderr]   Downloaded fasthash v0.4.0
[INFO] [stderr]   Downloaded capnp-futures v0.12.0
[INFO] [stderr]   Downloaded capnp v0.12.3
[INFO] [stderr]   Downloaded parquet-format v2.5.0
[INFO] [stderr]   Downloaded snap v0.2.5
[INFO] [stderr]   Downloaded alloc-no-stdlib v1.3.0
[INFO] [stderr]   Downloaded build_id v0.2.1
[INFO] [stderr]   Downloaded envy v0.4.1
[INFO] [stderr]   Downloaded zstd-safe v1.4.13+zstd.1.4.3
[INFO] [stderr]   Downloaded erased-serde v0.3.12
[INFO] [stderr]   Downloaded palaver v0.2.8
[INFO] [stderr]   Downloaded seahash v3.0.7
[INFO] [stderr]   Downloaded capnpc v0.12.4
[INFO] [stderr]   Downloaded brotli-decompressor v1.3.1
[INFO] [stderr]   Downloaded zstd-sys v1.4.13+zstd.1.4.3
[INFO] [stderr]   Downloaded integer-encoding v1.1.5
[INFO] [stderr]   Downloaded brotli v2.5.1
[INFO] [stderr]   Downloaded parquet v0.15.1
[INFO] [stderr]   Downloaded arrow v0.15.1
[INFO] [stderr]   Downloaded serde_closure v0.2.14
[INFO] [stderr]   Downloaded uriparse v0.6.1
[INFO] [stderr]   Downloaded serde_closure_derive v0.2.14
[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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-08-29" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d586a685040eaaa79d810592e5903941dc3cb8095c45ee5ec3e030845837d160
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "d586a685040eaaa79d810592e5903941dc3cb8095c45ee5ec3e030845837d160", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d586a685040eaaa79d810592e5903941dc3cb8095c45ee5ec3e030845837d160", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d586a685040eaaa79d810592e5903941dc3cb8095c45ee5ec3e030845837d160", kill_on_drop: false }`
[INFO] [stdout] d586a685040eaaa79d810592e5903941dc3cb8095c45ee5ec3e030845837d160
[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" "RUSTDOCFLAGS=--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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-08-29" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ae065740d60e969d98d47d0a2530d151d318d3cd576faea7a5971d09b308ca6c
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "ae065740d60e969d98d47d0a2530d151d318d3cd576faea7a5971d09b308ca6c", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.76
[INFO] [stderr]    Compiling proc-macro2 v1.0.20
[INFO] [stderr]    Compiling syn v1.0.39
[INFO] [stderr]    Compiling serde v1.0.115
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]     Checking once_cell v1.4.1
[INFO] [stderr]    Compiling pin-project-internal v0.4.23
[INFO] [stderr]     Checking futures-io v0.3.5
[INFO] [stderr]    Compiling nix v0.15.0
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]     Checking smallvec v1.4.2
[INFO] [stderr]    Compiling heapless v0.5.5
[INFO] [stderr]    Compiling build_id v0.2.1
[INFO] [stderr]     Checking nom v2.2.1
[INFO] [stderr]    Compiling gcc v0.3.55
[INFO] [stderr]    Compiling relative v0.2.2
[INFO] [stderr]    Compiling capnp v0.12.3
[INFO] [stderr]     Checking try-lock v0.2.3
[INFO] [stderr]     Checking either v1.6.0
[INFO] [stderr]     Checking seahash v3.0.7
[INFO] [stderr]     Checking metatype v0.2.0
[INFO] [stderr]     Checking downcast-rs v1.2.0
[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/metatype-0.2.0/src/lib.rs:34:1
[INFO] [stdout]    |
[INFO] [stdout] 34 | #![feature(arbitrary_self_types)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[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/metatype-0.2.0/src/lib.rs:35:1
[INFO] [stdout]    |
[INFO] [stdout] 35 | #![feature(raw)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[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/metatype-0.2.0/src/lib.rs:36:1
[INFO] [stdout]    |
[INFO] [stdout] 36 | #![feature(slice_from_raw_parts)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[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/metatype-0.2.0/src/lib.rs:37:1
[INFO] [stdout]    |
[INFO] [stdout] 37 | #![feature(specialization)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `metatype`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "ae065740d60e969d98d47d0a2530d151d318d3cd576faea7a5971d09b308ca6c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ae065740d60e969d98d47d0a2530d151d318d3cd576faea7a5971d09b308ca6c", kill_on_drop: false }`
[INFO] [stdout] ae065740d60e969d98d47d0a2530d151d318d3cd576faea7a5971d09b308ca6c