[INFO] fetching crate netapp 0.1.2...
[INFO] documenting netapp-0.1.2 against beta-2021-08-01 for beta-1.55-rustdoc-1
[INFO] extracting crate netapp 0.1.2 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate netapp 0.1.2 on toolchain beta-2021-08-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate netapp 0.1.2
[INFO] finished tweaking crates.io crate netapp 0.1.2
[INFO] tweaked toml for crates.io crate netapp 0.1.2 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate crates.io crate netapp 0.1.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded vec-arena v1.0.0
[INFO] [stderr]   Downloaded nb-connect v1.0.3
[INFO] [stderr]   Downloaded ctor v0.1.19
[INFO] [stderr]   Downloaded arc-swap v1.2.0
[INFO] [stderr]   Downloaded rmp-serde v0.14.4
[INFO] [stderr]   Downloaded polling v2.0.2
[INFO] [stderr]   Downloaded libsodium-sys v0.2.6
[INFO] [stderr]   Downloaded kuska-handshake v0.1.2
[INFO] [stderr]   Downloaded kuska-sodiumoxide v0.2.5-0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+beta-2021-08-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0d4cb507db11043f4a30300f2c5c60d398272fef287343ff9f0f832c497d7276
[INFO] running `Command { std: "docker" "start" "-a" "0d4cb507db11043f4a30300f2c5c60d398272fef287343ff9f0f832c497d7276", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0d4cb507db11043f4a30300f2c5c60d398272fef287343ff9f0f832c497d7276", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0d4cb507db11043f4a30300f2c5c60d398272fef287343ff9f0f832c497d7276", kill_on_drop: false }`
[INFO] [stdout] 0d4cb507db11043f4a30300f2c5c60d398272fef287343ff9f0f832c497d7276
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+beta-2021-08-01" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9ba3d6e0c27ad6efa8a2995e86eccf97949f111b22649722d199c9b094f8e2db
[INFO] running `Command { std: "docker" "start" "-a" "9ba3d6e0c27ad6efa8a2995e86eccf97949f111b22649722d199c9b094f8e2db", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.63
[INFO] [stderr]    Compiling libc v0.2.88
[INFO] [stderr]    Compiling value-bag v1.0.0-alpha.6
[INFO] [stderr]     Checking futures-core v0.3.13
[INFO] [stderr]     Checking futures-io v0.3.13
[INFO] [stderr]     Checking fastrand v1.4.0
[INFO] [stderr]     Checking vec-arena v1.0.0
[INFO] [stderr]    Compiling rustversion v1.0.4
[INFO] [stderr]    Compiling signal-hook v0.3.7
[INFO] [stderr]     Checking futures-sink v0.3.13
[INFO] [stderr]     Checking futures-task v0.3.13
[INFO] [stderr]    Compiling async-trait v0.1.48
[INFO] [stderr]     Checking regex-syntax v0.6.22
[INFO] [stderr]     Checking bytes v0.6.0
[INFO] [stderr]     Checking arc-swap v1.2.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.3
[INFO] [stderr]    Compiling libsodium-sys v0.2.6
[INFO] [stderr]     Checking thread_local v1.1.3
[INFO] [stderr]     Checking async-lock v2.3.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking async-channel v1.6.1
[INFO] [stderr]     Checking futures-channel v0.3.13
[INFO] [stderr]     Checking futures-lite v1.11.3
[INFO] [stderr]     Checking regex v1.4.3
[INFO] [stderr]     Checking socket2 v0.3.19
[INFO] [stderr]     Checking net2 v0.2.37
[INFO] [stderr]     Checking signal-hook-registry v1.3.0
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking blocking v1.0.2
[INFO] [stderr]     Checking async-executor v1.4.0
[INFO] [stderr]    Compiling err-derive v0.2.4
[INFO] [stderr]     Checking nb-connect v1.0.3
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling ctor v0.1.19
[INFO] [stderr]    Compiling serde_derive v1.0.124
[INFO] [stderr]    Compiling futures-macro v0.3.13
[INFO] [stderr]    Compiling async-attributes v1.1.2
[INFO] [stderr]    Compiling thiserror-impl v1.0.24
[INFO] [stderr]    Compiling tokio-macros v0.2.6
[INFO] [stderr]    Compiling structopt-derive v0.4.14
[INFO] [stderr]     Checking log v0.4.14
[INFO] [stderr]     Checking futures-util v0.3.13
[INFO] [stderr]     Checking polling v2.0.2
[INFO] [stderr]     Checking mio v0.6.23
[INFO] [stderr]     Checking kv-log-macro v1.0.7
[INFO] [stderr]     Checking env_logger v0.8.3
[INFO] [stderr]     Checking async-io v1.3.1
[INFO] [stderr]     Checking structopt v0.3.21
[INFO] [stderr]     Checking thiserror v1.0.24
[INFO] [stderr]     Checking async-process v1.0.2
[INFO] [stderr]     Checking async-global-executor v2.0.2
[INFO] [stderr]     Checking mio-uds v0.6.8
[INFO] [stderr]     Checking tokio v0.2.25
[INFO] [stderr]     Checking async-std v1.9.0
[INFO] [stderr]     Checking futures-executor v0.3.13
[INFO] [stderr]     Checking futures v0.3.13
[INFO] [stderr]     Checking serde v1.0.124
[INFO] [stderr]     Checking rmp-serde v0.14.4
[INFO] [stderr]     Checking kuska-sodiumoxide v0.2.5-0
[INFO] [stderr]     Checking kuska-handshake v0.1.2
[INFO] [stderr]  Documenting netapp v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]   --> src/lib.rs:16:1
[INFO] [stdout]    |
[INFO] [stdout] 16 | #![feature(map_first_last)]
[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 `netapp`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name netapp src/lib.rs -o /opt/rustwide/target/doc --cfg 'feature="default"' --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern arc_swap=/opt/rustwide/target/debug/deps/libarc_swap-b94a9c1460e1d1c9.rmeta --extern async_std=/opt/rustwide/target/debug/deps/libasync_std-755311464efb7ee8.rmeta --extern async_trait=/opt/rustwide/target/debug/deps/libasync_trait-d9421d5b5d3a6e0b.so --extern base64=/opt/rustwide/target/debug/deps/libbase64-ea7559d52c89b04b.rmeta --extern bytes=/opt/rustwide/target/debug/deps/libbytes-9e499be2089a76ea.rmeta --extern chrono=/opt/rustwide/target/debug/deps/libchrono-2fcf0eda9b40a66c.rmeta --extern env_logger=/opt/rustwide/target/debug/deps/libenv_logger-c0b410337f76b103.rmeta --extern err_derive=/opt/rustwide/target/debug/deps/liberr_derive-049cc6f50834986d.so --extern hex=/opt/rustwide/target/debug/deps/libhex-3303e62dbe377562.rmeta --extern kuska_handshake=/opt/rustwide/target/debug/deps/libkuska_handshake-294b09b5391b2213.rmeta --extern sodiumoxide=/opt/rustwide/target/debug/deps/libkuska_sodiumoxide-e9935f66b0c79158.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-8aeff2fab407cfb8.rmeta --extern rmp_serde=/opt/rustwide/target/debug/deps/librmp_serde-0b064dbc171311c1.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-0953c0449e02e61f.rmeta --extern structopt=/opt/rustwide/target/debug/deps/libstructopt-cb7f78309f9954bf.rmeta --extern tokio=/opt/rustwide/target/debug/deps/libtokio-f3549674c7193e45.rmeta --cap-lints=warn --crate-version 0.1.2` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "9ba3d6e0c27ad6efa8a2995e86eccf97949f111b22649722d199c9b094f8e2db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9ba3d6e0c27ad6efa8a2995e86eccf97949f111b22649722d199c9b094f8e2db", kill_on_drop: false }`
[INFO] [stdout] 9ba3d6e0c27ad6efa8a2995e86eccf97949f111b22649722d199c9b094f8e2db
