[INFO] fetching crate zenoh 0.5.0-beta.8...
[INFO] documenting zenoh-0.5.0-beta.8 against 1.54.0 for beta-1.55-rustdoc-1
[INFO] extracting crate zenoh 0.5.0-beta.8 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate zenoh 0.5.0-beta.8 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 crates.io crate zenoh 0.5.0-beta.8
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate zenoh 0.5.0-beta.8
[INFO] tweaked toml for crates.io crate zenoh 0.5.0-beta.8 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate crates.io crate zenoh 0.5.0-beta.8 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 1686c11e72e75ab87e6f805ce41f870f14ef9fc029a2b919ab6941d4574d1e5a
[INFO] running `Command { std: "docker" "start" "-a" "1686c11e72e75ab87e6f805ce41f870f14ef9fc029a2b919ab6941d4574d1e5a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1686c11e72e75ab87e6f805ce41f870f14ef9fc029a2b919ab6941d4574d1e5a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1686c11e72e75ab87e6f805ce41f870f14ef9fc029a2b919ab6941d4574d1e5a", kill_on_drop: false }`
[INFO] [stdout] 1686c11e72e75ab87e6f805ce41f870f14ef9fc029a2b919ab6941d4574d1e5a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] 21045643e33bb4512eb5f58dd0d8b3c8752711854aec703d628e856ff8192389
[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" "21045643e33bb4512eb5f58dd0d8b3c8752711854aec703d628e856ff8192389", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.67
[INFO] [stderr]    Compiling unicode-xid v0.0.3
[INFO] [stderr]     Checking subtle v2.4.0
[INFO] [stderr]    Compiling bitflags v0.5.0
[INFO] [stderr]    Compiling regex-syntax v0.6.23
[INFO] [stderr]     Checking vec-arena v1.1.0
[INFO] [stderr]    Compiling signal-hook v0.3.7
[INFO] [stderr]     Checking pnet_base v0.27.2
[INFO] [stderr]    Compiling const_fn v0.4.6
[INFO] [stderr]    Compiling pnet v0.27.2
[INFO] [stderr]    Compiling http-types v2.10.0
[INFO] [stderr]     Checking infer v0.2.3
[INFO] [stderr]    Compiling time v0.2.26
[INFO] [stderr]    Compiling cookie v0.14.4
[INFO] [stderr]    Compiling syntex_pos v0.42.0
[INFO] [stderr]     Checking futures-channel v0.3.13
[INFO] [stderr]    Compiling libc v0.2.92
[INFO] [stderr]    Compiling semver-parser v0.10.2
[INFO] [stderr]     Checking socket2 v0.4.0
[INFO] [stderr]     Checking signal-hook-registry v1.3.0
[INFO] [stderr]     Checking pnet_sys v0.27.2
[INFO] [stderr]     Checking getrandom v0.1.16
[INFO] [stderr]     Checking dirs-sys-next v0.1.2
[INFO] [stderr]     Checking ring v0.16.20
[INFO] [stderr]     Checking nix v0.20.0
[INFO] [stderr]     Checking uuid v0.8.2
[INFO] [stderr]     Checking pnet_macros_support v0.27.2
[INFO] [stderr]     Checking async-executor v1.4.0
[INFO] [stderr]     Checking crypto-mac v0.10.0
[INFO] [stderr]     Checking universal-hash v0.4.0
[INFO] [stderr]     Checking petgraph v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.3.0
[INFO] [stderr]     Checking dirs-next v2.0.0
[INFO] [stderr]     Checking sha2 v0.9.3
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking hmac v0.10.1
[INFO] [stderr]     Checking polyval v0.4.5
[INFO] [stderr]     Checking nb-connect v1.1.0
[INFO] [stderr]     Checking shellexpand v2.1.0
[INFO] [stderr]     Checking rand v0.8.3
[INFO] [stderr]    Compiling semver v0.11.0
[INFO] [stderr]     Checking ghash v0.3.1
[INFO] [stderr]     Checking hkdf v0.10.0
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking aes-gcm v0.8.0
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]    Compiling rustc_version v0.3.3
[INFO] [stderr]    Compiling zenoh v0.5.0-beta.8 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking webpki v0.21.4
[INFO] [stderr]     Checking sct v0.6.0
[INFO] [stderr]    Compiling regex v1.4.5
[INFO] [stderr]     Checking shared_memory v0.11.4
[INFO] [stderr]    Compiling ctor v0.1.20
[INFO] [stderr]    Compiling serde_derive v1.0.125
[INFO] [stderr]    Compiling time-macros-impl v0.1.1
[INFO] [stderr]    Compiling async-attributes v1.1.2
[INFO] [stderr]    Compiling futures-macro v0.3.13
[INFO] [stderr]    Compiling thiserror-impl v1.0.24
[INFO] [stderr]    Compiling async-trait v0.1.48
[INFO] [stderr]    Compiling git-version-macro v0.3.4
[INFO] [stderr]     Checking git-version v0.3.4
[INFO] [stderr]     Checking value-bag v1.0.0-alpha.6
[INFO] [stderr]     Checking time-macros v0.1.1
[INFO] [stderr]     Checking futures-util v0.3.13
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking thiserror v1.0.24
[INFO] [stderr]    Compiling log v0.3.9
[INFO] [stderr]     Checking polling v2.0.3
[INFO] [stderr]     Checking kv-log-macro v1.0.7
[INFO] [stderr]     Checking rustls v0.19.0
[INFO] [stderr]     Checking env_logger v0.8.3
[INFO] [stderr]     Checking async-io v1.3.1
[INFO] [stderr]    Compiling syntex_errors v0.42.0
[INFO] [stderr]     Checking async-global-executor v2.0.2
[INFO] [stderr]     Checking async-process v1.0.2
[INFO] [stderr]    Compiling syntex_syntax v0.42.0
[INFO] [stderr]     Checking async-std v1.9.0
[INFO] [stderr]     Checking async-rustls v0.2.0
[INFO] [stderr]     Checking futures-executor v0.3.13
[INFO] [stderr]     Checking futures v0.3.13
[INFO] [stderr]     Checking serde v1.0.125
[INFO] [stderr]     Checking uhlc v0.2.1
[INFO] [stderr]     Checking ipnetwork v0.17.0
[INFO] [stderr]     Checking url v2.2.1
[INFO] [stderr]     Checking serde_urlencoded v0.7.0
[INFO] [stderr]     Checking serde_json v1.0.64
[INFO] [stderr]     Checking serde_qs v0.7.2
[INFO] [stderr]     Checking bincode v1.3.2
[INFO] [stderr]     Checking pnet_datalink v0.27.2
[INFO] [stderr]    Compiling syntex v0.42.2
[INFO] [stderr]    Compiling pnet_macros v0.27.2
[INFO] [stderr]    Compiling pnet_packet v0.27.2
[INFO] [stderr]     Checking pnet_transport v0.27.2
[INFO] [stderr]     Checking zenoh-util v0.5.0-beta.8
[INFO] [stderr]  Documenting zenoh v0.5.0-beta.8 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> src/lib.rs:84:1
[INFO] [stdout]    |
[INFO] [stdout] 84 | #![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]   --> src/lib.rs:85:1
[INFO] [stdout]    |
[INFO] [stdout] 85 | #![feature(get_mut_unchecked)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> src/lib.rs:86:1
[INFO] [stdout]    |
[INFO] [stdout] 86 | #![feature(map_into_keys_values)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> src/lib.rs:87:1
[INFO] [stdout]    |
[INFO] [stdout] 87 | #![feature(can_vector)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 5 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 `zenoh`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name zenoh src/lib.rs -o /opt/rustwide/target/doc --cfg 'feature="async-rustls"' --cfg 'feature="default"' --cfg 'feature="nix"' --cfg 'feature="transport_tcp"' --cfg 'feature="transport_tls"' --cfg 'feature="transport_udp"' --cfg 'feature="transport_unixsock-stream"' --cfg 'feature="zero-copy"' --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern async_rustls=/opt/rustwide/target/debug/deps/libasync_rustls-03a76ecc5e6e3e3b.rmeta --extern async_std=/opt/rustwide/target/debug/deps/libasync_std-406534ae2b14776c.rmeta --extern async_trait=/opt/rustwide/target/debug/deps/libasync_trait-8e2c167d182b71fb.so --extern base64=/opt/rustwide/target/debug/deps/libbase64-06135271d248c171.rmeta --extern bincode=/opt/rustwide/target/debug/deps/libbincode-96d4db70f28ce65e.rmeta --extern clap=/opt/rustwide/target/debug/deps/libclap-2e7da21e39f8f29d.rmeta --extern env_logger=/opt/rustwide/target/debug/deps/libenv_logger-a0f1b1995eedb4ac.rmeta --extern futures=/opt/rustwide/target/debug/deps/libfutures-18bf0172f310f02b.rmeta --extern git_version=/opt/rustwide/target/debug/deps/libgit_version-ad3d5b8d69a5b222.rmeta --extern hex=/opt/rustwide/target/debug/deps/libhex-4e132399b961d086.rmeta --extern http_types=/opt/rustwide/target/debug/deps/libhttp_types-e20777da91ce4f9c.rmeta --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-acd7d23482fe8b54.rmeta --extern libloading=/opt/rustwide/target/debug/deps/liblibloading-8bdd049c282f2060.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-df3e228459d412b9.rmeta --extern nix=/opt/rustwide/target/debug/deps/libnix-9472518d662ba992.rmeta --extern petgraph=/opt/rustwide/target/debug/deps/libpetgraph-28355f3edc7ea5f2.rmeta --extern pin_project_lite=/opt/rustwide/target/debug/deps/libpin_project_lite-1144b04bfa3514dc.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-3398348dda5388b2.rmeta --extern regex=/opt/rustwide/target/debug/deps/libregex-6792f3d5f7a30912.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-484db6f152b70556.rmeta --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-3ee62c7291e1217c.rmeta --extern shared_memory=/opt/rustwide/target/debug/deps/libshared_memory-189f02e0e1a49223.rmeta --extern socket2=/opt/rustwide/target/debug/deps/libsocket2-302f1c910f22a883.rmeta --extern uhlc=/opt/rustwide/target/debug/deps/libuhlc-b92bb79f9646a0b1.rmeta --extern uuid=/opt/rustwide/target/debug/deps/libuuid-bfa1026ebeb8735c.rmeta --extern vec_map=/opt/rustwide/target/debug/deps/libvec_map-036eecef551b0592.rmeta --extern zenoh_util=/opt/rustwide/target/debug/deps/libzenoh_util-545211af7eaacd76.rmeta --cap-lints=warn --crate-version 0.5.0-beta.8` (exit status: 1)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> src/lib.rs:84:1
[INFO] [stdout]    |
[INFO] [stdout] 84 | #![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]   --> src/lib.rs:85:1
[INFO] [stdout]    |
[INFO] [stdout] 85 | #![feature(get_mut_unchecked)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> src/lib.rs:86:1
[INFO] [stdout]    |
[INFO] [stdout] 86 | #![feature(map_into_keys_values)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> src/lib.rs:87:1
[INFO] [stdout]    |
[INFO] [stdout] 87 | #![feature(can_vector)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors
[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" "21045643e33bb4512eb5f58dd0d8b3c8752711854aec703d628e856ff8192389", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "21045643e33bb4512eb5f58dd0d8b3c8752711854aec703d628e856ff8192389", kill_on_drop: false }`
[INFO] [stdout] 21045643e33bb4512eb5f58dd0d8b3c8752711854aec703d628e856ff8192389
