[INFO] fetching crate flv-client 3.1.0...
[INFO] testing flv-client-3.1.0 against beta-2020-10-09 for beta-1.48-1
[INFO] extracting crate flv-client 3.1.0 into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate flv-client 3.1.0 on toolchain beta-2020-10-09
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate flv-client 3.1.0
[INFO] finished tweaking crates.io crate flv-client 3.1.0
[INFO] tweaked toml for crates.io crate flv-client 3.1.0 written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded flv-metadata v1.0.0
[INFO] [stderr]   Downloaded flv-types v0.2.2
[INFO] [stderr]   Downloaded flv-api-spu v1.1.0
[INFO] [stderr]   Downloaded flv-api-sc v1.2.0
[INFO] [stderr]   Downloaded kf-socket v2.0.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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-2020-10-09" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 52242d1d770da7dfcf9415c8ecf7695ae93b20b623e5281c6bbe9792e20f7d63
[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" "52242d1d770da7dfcf9415c8ecf7695ae93b20b623e5281c6bbe9792e20f7d63", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "52242d1d770da7dfcf9415c8ecf7695ae93b20b623e5281c6bbe9792e20f7d63", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "52242d1d770da7dfcf9415c8ecf7695ae93b20b623e5281c6bbe9792e20f7d63", kill_on_drop: false }`
[INFO] [stdout] 52242d1d770da7dfcf9415c8ecf7695ae93b20b623e5281c6bbe9792e20f7d63
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a69d750b1a248f5b0a38fcf09aef2d29ea3349058702347378532765dc48cb8d
[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" "a69d750b1a248f5b0a38fcf09aef2d29ea3349058702347378532765dc48cb8d", kill_on_drop: false }`
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling cache-padded v1.1.1
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling event-listener v2.5.1
[INFO] [stderr]    Compiling async-task v4.0.2
[INFO] [stderr]    Compiling vec-arena v1.0.0
[INFO] [stderr]    Compiling crc32c v0.4.0
[INFO] [stderr]    Compiling atomic-waker v1.0.0
[INFO] [stderr]    Compiling futures-timer v2.0.2
[INFO] [stderr]    Compiling tokio v0.2.22
[INFO] [stderr]    Compiling owning_ref v0.3.3
[INFO] [stderr]    Compiling futures-lite v1.11.1
[INFO] [stderr]    Compiling content_inspector v0.2.4
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling nb-connect v1.0.2
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]    Compiling dirs v1.0.5
[INFO] [stderr]    Compiling regex-automata v0.1.9
[INFO] [stderr]    Compiling ring v0.16.15
[INFO] [stderr]    Compiling bytes v0.4.12
[INFO] [stderr]    Compiling concurrent-queue v1.2.2
[INFO] [stderr]    Compiling async-mutex v1.4.0
[INFO] [stderr]    Compiling chrono v0.4.19
[INFO] [stderr]    Compiling error-chain v0.12.4
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling futures-util v0.3.6
[INFO] [stderr]    Compiling async-channel v1.5.1
[INFO] [stderr]    Compiling serde_qs v0.4.6
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling http v0.1.21
[INFO] [stderr]    Compiling parking_lot_core v0.2.14
[INFO] [stderr]    Compiling polling v2.0.1
[INFO] [stderr]    Compiling tracing-log v0.1.1
[INFO] [stderr]    Compiling kv-log-macro v1.0.7
[INFO] [stderr]    Compiling env_logger v0.6.2
[INFO] [stderr]    Compiling env_logger v0.7.1
[INFO] [stderr]    Compiling flv-types v0.1.0
[INFO] [stderr]    Compiling flv-types v0.2.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling k8-obj-metadata v1.0.0
[INFO] [stderr]    Compiling async-executor v1.3.0
[INFO] [stderr]    Compiling blocking v1.0.2
[INFO] [stderr]    Compiling async-io v1.1.10
[INFO] [stderr]    Compiling parking_lot v0.4.8
[INFO] [stderr]    Compiling matchers v0.0.1
[INFO] [stderr]    Compiling flv-util v0.1.1
[INFO] [stderr]    Compiling flv-util v0.2.1
[INFO] [stderr]    Compiling tokio-util v0.3.1
[INFO] [stderr]    Compiling webpki v0.21.3
[INFO] [stderr]    Compiling sct v0.6.0
[INFO] [stderr]    Compiling tracing-subscriber v0.2.13
[INFO] [stderr]    Compiling async-global-executor v1.3.0
[INFO] [stderr]    Compiling chashmap v2.2.2
[INFO] [stderr]    Compiling async-std v1.6.5
[INFO] [stderr]    Compiling rustls v0.17.0
[INFO] [stderr]    Compiling webpki-roots v0.19.0
[INFO] [stderr]    Compiling flv-k8-topic v1.0.0
[INFO] [stderr]    Compiling flv-k8-partition v1.0.0
[INFO] [stderr]    Compiling k8-obj-core v1.1.0
[INFO] [stderr]    Compiling flv-util v0.4.0
[INFO] [stderr]    Compiling num-derive v0.2.5
[INFO] [stderr]    Compiling kf-protocol-derive v0.1.1
[INFO] [stderr]    Compiling flv-k8-spu v1.0.0
[INFO] [stderr]    Compiling k8-obj-app v1.1.1
[INFO] [stderr]    Compiling futures-executor v0.3.6
[INFO] [stderr]    Compiling flv-k8-spg v1.0.0
[INFO] [stderr]    Compiling futures v0.3.6
[INFO] [stderr]    Compiling async-tls v0.7.0
[INFO] [stderr]    Compiling k8-flv-metadata v1.0.0
[INFO] [stderr]    Compiling kf-protocol-core v0.1.2
[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/kf-protocol-core-0.1.2/src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(specialization)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `kf-protocol-core`
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[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" "a69d750b1a248f5b0a38fcf09aef2d29ea3349058702347378532765dc48cb8d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a69d750b1a248f5b0a38fcf09aef2d29ea3349058702347378532765dc48cb8d", kill_on_drop: false }`
[INFO] [stdout] a69d750b1a248f5b0a38fcf09aef2d29ea3349058702347378532765dc48cb8d
