[INFO] cloning repository https://github.com/moxaj/friendly-octopus
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/moxaj/friendly-octopus" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmoxaj%2Ffriendly-octopus", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmoxaj%2Ffriendly-octopus'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6dd5d55b22861f5426e4ada604b95cb4efea1829
[INFO] documenting moxaj/friendly-octopus against 1.54.0 for beta-1.55-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmoxaj%2Ffriendly-octopus" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/moxaj/friendly-octopus on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/moxaj/friendly-octopus
[INFO] finished tweaking git repo https://github.com/moxaj/friendly-octopus
[INFO] tweaked toml for git repo https://github.com/moxaj/friendly-octopus written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/moxaj/friendly-octopus already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 72b6524118faa31e7d21f5c8e69c3c39b79221a4a0777e35e2c21adaca0fbb12
[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" "72b6524118faa31e7d21f5c8e69c3c39b79221a4a0777e35e2c21adaca0fbb12", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "72b6524118faa31e7d21f5c8e69c3c39b79221a4a0777e35e2c21adaca0fbb12", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "72b6524118faa31e7d21f5c8e69c3c39b79221a4a0777e35e2c21adaca0fbb12", kill_on_drop: false }`
[INFO] [stdout] 72b6524118faa31e7d21f5c8e69c3c39b79221a4a0777e35e2c21adaca0fbb12
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6461f9489c57c71a27f63ab42c056dd922b71de41ef01ce087aaa9b85c79d07e
[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" "6461f9489c57c71a27f63ab42c056dd922b71de41ef01ce087aaa9b85c79d07e", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.2
[INFO] [stderr]    Compiling syn v1.0.5
[INFO] [stderr]     Checking futures-core-preview v0.3.0-alpha.18
[INFO] [stderr]     Checking spin v0.5.1
[INFO] [stderr]     Checking futures-io-preview v0.3.0-alpha.18
[INFO] [stderr]    Compiling pin-project-internal v0.4.0-alpha.11
[INFO] [stderr]    Compiling autocfg v0.1.6
[INFO] [stderr]     Checking common v0.1.0 (/opt/rustwide/workdir/common)
[INFO] [stderr]     Checking net-client v0.1.0 (/opt/rustwide/workdir/net-client)
[INFO] [stderr]     Checking desktop-client v0.1.0 (/opt/rustwide/workdir/desktop-client)
[INFO] [stderr]     Checking web-client v0.1.0 (/opt/rustwide/workdir/web-client)
[INFO] [stderr]     Checking game-manager v0.1.0 (/opt/rustwide/workdir/game-manager)
[INFO] [stderr]     Checking web-server v0.1.0 (/opt/rustwide/workdir/web-server)
[INFO] [stderr]  Documenting common v0.1.0 (/opt/rustwide/workdir/common)
[INFO] [stderr]  Documenting desktop-client v0.1.0 (/opt/rustwide/workdir/desktop-client)
[INFO] [stderr]  Documenting web-server v0.1.0 (/opt/rustwide/workdir/web-server)
[INFO] [stderr]  Documenting web-client v0.1.0 (/opt/rustwide/workdir/web-client)
[INFO] [stderr]  Documenting net-client v0.1.0 (/opt/rustwide/workdir/net-client)
[INFO] [stderr]  Documenting game-manager v0.1.0 (/opt/rustwide/workdir/game-manager)
[INFO] [stderr]     Checking generational-arena v0.2.2
[INFO] [stderr]  Documenting web-client-package v0.1.0 (/opt/rustwide/workdir/web-client-package)
[INFO] [stderr]  Documenting web-server-package v0.1.0 (/opt/rustwide/workdir/web-server-package)
[INFO] [stderr]  Documenting desktop-client-package v0.1.0 (/opt/rustwide/workdir/desktop-client-package)
[INFO] [stderr]     Checking lazy_static v1.3.0
[INFO] [stderr]     Checking futures-sink-preview v0.3.0-alpha.18
[INFO] [stderr]     Checking mio v0.6.19
[INFO] [stderr]     Checking futures-channel-preview v0.3.0-alpha.18
[INFO] [stderr]     Checking crossbeam-utils v0.6.6
[INFO] [stderr]     Checking tracing-core v0.1.5
[INFO] [stderr]     Checking futures-util-preview v0.3.0-alpha.18
[INFO] [stderr]    Compiling bincode v1.1.4
[INFO] [stderr]     Checking crossbeam-epoch v0.7.2
[INFO] [stderr]     Checking crossbeam-queue v0.1.2
[INFO] [stderr]     Checking crossbeam-channel v0.3.9
[INFO] [stderr]     Checking mio-uds v0.6.7
[INFO] [stderr]     Checking crossbeam-deque v0.7.1
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]     Checking tokio-sync v0.2.0-alpha.5
[INFO] [stderr]     Checking futures-executor-preview v0.3.0-alpha.18
[INFO] [stderr]     Checking futures-preview v0.3.0-alpha.18
[INFO] [stderr]    Compiling tracing-attributes v0.1.2
[INFO] [stderr]    Compiling serde_derive v1.0.99
[INFO] [stderr]    Compiling tokio-macros v0.2.0-alpha.5
[INFO] [stderr]    Compiling async-trait v0.1.11
[INFO] [stderr]     Checking tracing v0.1.7
[INFO] [stderr]     Checking pin-project v0.4.0-alpha.11
[INFO] [stderr]     Checking tokio-io v0.2.0-alpha.5
[INFO] [stderr]     Checking tokio-executor v0.2.0-alpha.5
[INFO] [stderr]     Checking tokio-codec v0.2.0-alpha.5
[INFO] [stderr]     Checking tokio-timer v0.3.0-alpha.5
[INFO] [stderr]     Checking tokio-net v0.2.0-alpha.5
[INFO] [stderr]     Checking tokio-fs v0.2.0-alpha.5
[INFO] [stderr]     Checking tokio v0.2.0-alpha.5
[INFO] [stderr]     Checking serde v1.0.99
[INFO] [stderr]     Checking net v0.1.0 (/opt/rustwide/workdir/net)
[INFO] [stderr]  Documenting net v0.1.0 (/opt/rustwide/workdir/net)
[INFO] [stderr]     Checking net-server v0.1.0 (/opt/rustwide/workdir/net-server)
[INFO] [stderr]  Documenting net-server v0.1.0 (/opt/rustwide/workdir/net-server)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> net-server/src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(async_closure)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> net-server/src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(async_closure)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 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 document `net-server`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name net_server net-server/src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern async_trait=/opt/rustwide/target/debug/deps/libasync_trait-ae35b55fb0122db7.so --extern bytes=/opt/rustwide/target/debug/deps/libbytes-dc549feff340e1d2.rmeta --extern common=/opt/rustwide/target/debug/deps/libcommon-b4520f80e37860f1.rmeta --extern futures=/opt/rustwide/target/debug/deps/libfutures-970109174cebfa5f.rmeta --extern generational_arena=/opt/rustwide/target/debug/deps/libgenerational_arena-c7a53fd23b4e6182.rmeta --extern net=/opt/rustwide/target/debug/deps/libnet-c324b0f58b769f06.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-8eaeade156282fc5.rmeta --extern tokio=/opt/rustwide/target/debug/deps/libtokio-97d04227eeae59fa.rmeta --extern tokio_io=/opt/rustwide/target/debug/deps/libtokio_io-6495f6cb50a5f759.rmeta --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[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: build failed
[INFO] running `Command { std: "docker" "inspect" "6461f9489c57c71a27f63ab42c056dd922b71de41ef01ce087aaa9b85c79d07e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6461f9489c57c71a27f63ab42c056dd922b71de41ef01ce087aaa9b85c79d07e", kill_on_drop: false }`
[INFO] [stdout] 6461f9489c57c71a27f63ab42c056dd922b71de41ef01ce087aaa9b85c79d07e
