[INFO] fetching crate hue_persistence 0.2.5...
[INFO] documenting hue_persistence-0.2.5 against 1.61.0 for beta-1.62-rustdoc-1
[INFO] extracting crate hue_persistence 0.2.5 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate hue_persistence 0.2.5 on toolchain 1.61.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate hue_persistence 0.2.5
[INFO] finished tweaking crates.io crate hue_persistence 0.2.5
[INFO] tweaked toml for crates.io crate hue_persistence 0.2.5 written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ssdp v0.5.0
[INFO] [stderr]   Downloaded error-chain v0.7.2
[INFO] [stderr]   Downloaded philipshue v0.2.4
[INFO] [stderr]   Downloaded ifaces v0.0.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+1.61.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1858c8fe36ce84383fbca881c4e46649f0f7e115ff0e89b8c7072043570d3ab3
[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" "1858c8fe36ce84383fbca881c4e46649f0f7e115ff0e89b8c7072043570d3ab3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1858c8fe36ce84383fbca881c4e46649f0f7e115ff0e89b8c7072043570d3ab3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1858c8fe36ce84383fbca881c4e46649f0f7e115ff0e89b8c7072043570d3ab3", kill_on_drop: false }`
[INFO] [stdout] 1858c8fe36ce84383fbca881c4e46649f0f7e115ff0e89b8c7072043570d3ab3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+1.61.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6be2842b279198c36f7fe640bb1a8153e1c570af78c57a418d795ff056212c39
[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" "6be2842b279198c36f7fe640bb1a8153e1c570af78c57a418d795ff056212c39", kill_on_drop: false }`
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking tinyvec_macros v0.1.0
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling winapi-build v0.1.1
[INFO] [stderr]     Checking matches v0.1.9
[INFO] [stderr]     Checking unicode-bidi v0.3.8
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking percent-encoding v1.0.1
[INFO] [stderr]    Compiling httparse v1.7.1
[INFO] [stderr]     Checking winapi v0.2.8
[INFO] [stderr]     Checking bitflags v0.4.0
[INFO] [stderr]     Checking rustc-serialize v0.3.24
[INFO] [stderr]     Checking traitobject v0.0.1
[INFO] [stderr]     Checking serde v0.7.15
[INFO] [stderr]     Checking language-tags v0.2.2
[INFO] [stderr]     Checking regex-syntax v0.3.9
[INFO] [stderr]     Checking dtoa v0.2.2
[INFO] [stderr]     Checking unicode-width v0.1.9
[INFO] [stderr]    Compiling philipshue v0.2.4
[INFO] [stderr]     Checking utf8-ranges v0.1.3
[INFO] [stderr]     Checking itoa v0.1.1
[INFO] [stderr]    Compiling unicase v1.4.2
[INFO] [stderr]    Compiling backtrace v0.3.65
[INFO] [stderr]    Compiling syn v0.10.8
[INFO] [stderr]     Checking tinyvec v1.6.0
[INFO] [stderr]     Checking log v0.4.17
[INFO] [stderr]    Compiling kernel32-sys v0.2.2
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking num_cpus v1.13.1
[INFO] [stderr]     Checking memchr v0.1.11
[INFO] [stderr]     Checking nix v0.5.1
[INFO] [stderr]     Checking net2 v0.2.37
[INFO] [stderr]     Checking unix_socket v0.5.0
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking aho-corasick v0.5.3
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]     Checking serde_json v0.8.6
[INFO] [stderr]     Checking hpack v0.2.0
[INFO] [stderr]     Checking mime v0.2.6
[INFO] [stderr]     Checking syslog v3.3.0
[INFO] [stderr]     Checking thread-id v2.0.0
[INFO] [stderr]     Checking thread_local v0.2.7
[INFO] [stderr]     Checking object v0.28.4
[INFO] [stderr]     Checking regex v0.1.80
[INFO] [stderr]     Checking solicit v0.4.4
[INFO] [stderr]     Checking unicode-normalization v0.1.19
[INFO] [stderr]    Compiling serde_codegen_internals v0.11.3
[INFO] [stderr]     Checking ifaces v0.0.3
[INFO] [stderr]    Compiling serde_codegen v0.8.23
[INFO] [stderr]     Checking idna v0.1.5
[INFO] [stderr]     Checking env_logger v0.3.5
[INFO] [stderr]     Checking url v1.7.2
[INFO] [stderr]    Compiling serde_derive v0.8.23
[INFO] [stderr]     Checking cookie v0.2.5
[INFO] [stderr]     Checking hyper v0.9.18
[INFO] [stderr]     Checking error-chain v0.7.2
[INFO] [stderr]     Checking ssdp v0.5.0
[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/ssdp-0.5.0/src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(lookup_host, ip)]
[INFO] [stdout]   |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[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/ssdp-0.5.0/src/lib.rs:2:25
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(lookup_host, ip)]
[INFO] [stdout]   |                         ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0635]: unknown feature `lookup_host`
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/ssdp-0.5.0/src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(lookup_host, ip)]
[INFO] [stdout]   |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0554, E0635.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ssdp` due to 4 previous errors
[INFO] running `Command { std: "docker" "inspect" "6be2842b279198c36f7fe640bb1a8153e1c570af78c57a418d795ff056212c39", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6be2842b279198c36f7fe640bb1a8153e1c570af78c57a418d795ff056212c39", kill_on_drop: false }`
[INFO] [stdout] 6be2842b279198c36f7fe640bb1a8153e1c570af78c57a418d795ff056212c39