[INFO] fetching crate sonos 0.1.4...
[INFO] documenting sonos-0.1.4 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate sonos 0.1.4 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate sonos 0.1.4 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 crates.io crate sonos 0.1.4
[INFO] finished tweaking crates.io crate sonos 0.1.4
[INFO] tweaked toml for crates.io crate sonos 0.1.4 written to /workspace/builds/worker-3/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 xmltree v0.10.1
[INFO] [stderr]   Downloaded ssdp v0.7.0
[INFO] running `Command { std: "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" "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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 5d73699384dad8a6c930301674d3fa384e52b78dbfc6401bd4213fd078db409c
[INFO] running `Command { std: "docker" "start" "-a" "5d73699384dad8a6c930301674d3fa384e52b78dbfc6401bd4213fd078db409c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5d73699384dad8a6c930301674d3fa384e52b78dbfc6401bd4213fd078db409c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5d73699384dad8a6c930301674d3fa384e52b78dbfc6401bd4213fd078db409c", kill_on_drop: false }`
[INFO] [stdout] 5d73699384dad8a6c930301674d3fa384e52b78dbfc6401bd4213fd078db409c
[INFO] running `Command { std: "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" "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] be733eaa94231283beaba4d22f53bb92f2692e3d7b283cca194ceaf0f6812530
[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" "be733eaa94231283beaba4d22f53bb92f2692e3d7b283cca194ceaf0f6812530", kill_on_drop: false }`
[INFO] [stderr]     Checking c_linked_list v1.1.1
[INFO] [stderr]     Checking xml-rs v0.8.3
[INFO] [stderr]    Compiling error-chain v0.12.4
[INFO] [stderr]     Checking tracing v0.1.19
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]     Checking mio v0.6.22
[INFO] [stderr]     Checking error-chain v0.10.0
[INFO] [stderr]     Checking serde_urlencoded v0.6.1
[INFO] [stderr]     Checking native-tls v0.2.4
[INFO] [stderr]     Checking futures-util v0.3.5
[INFO] [stderr]     Checking get_if_addrs v0.5.3
[INFO] [stderr]     Checking ssdp 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/ssdp-0.7.0/src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(ip)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[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 `ssdp`.
[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" "be733eaa94231283beaba4d22f53bb92f2692e3d7b283cca194ceaf0f6812530", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "be733eaa94231283beaba4d22f53bb92f2692e3d7b283cca194ceaf0f6812530", kill_on_drop: false }`
[INFO] [stdout] be733eaa94231283beaba4d22f53bb92f2692e3d7b283cca194ceaf0f6812530