[INFO] cloning repository https://github.com/sgeisler/btcbc-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sgeisler/btcbc-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsgeisler%2Fbtcbc-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsgeisler%2Fbtcbc-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b1ca5e2074915447d877ae8c6d827a2bf8c5e67d
[INFO] documenting sgeisler/btcbc-rs against beta-2021-08-01 for beta-1.55-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsgeisler%2Fbtcbc-rs" "/workspace/builds/worker-11/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-11/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/sgeisler/btcbc-rs 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 git repo https://github.com/sgeisler/btcbc-rs
[INFO] finished tweaking git repo https://github.com/sgeisler/btcbc-rs
[INFO] tweaked toml for git repo https://github.com/sgeisler/btcbc-rs written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate git repo https://github.com/sgeisler/btcbc-rs 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]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded sha-1 v0.9.3
[INFO] [stderr]   Downloaded tokio-util v0.6.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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] 2bdabd4852070d2d618d36229bf4f2a66de96da220f44a1d180a40006be12005
[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" "2bdabd4852070d2d618d36229bf4f2a66de96da220f44a1d180a40006be12005", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2bdabd4852070d2d618d36229bf4f2a66de96da220f44a1d180a40006be12005", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2bdabd4852070d2d618d36229bf4f2a66de96da220f44a1d180a40006be12005", kill_on_drop: false }`
[INFO] [stdout] 2bdabd4852070d2d618d36229bf4f2a66de96da220f44a1d180a40006be12005
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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] 95c60c728e47216ae11c040210dbc98626e9dde7fb49bc35a63f088b520f6ecc
[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" "95c60c728e47216ae11c040210dbc98626e9dde7fb49bc35a63f088b520f6ecc", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.72
[INFO] [stderr]     Checking subtle v2.4.0
[INFO] [stderr]     Checking keystream v1.0.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling blake3 v0.3.7
[INFO] [stderr]    Compiling tokio v1.2.0
[INFO] [stderr]    Compiling ring v0.16.20
[INFO] [stderr]     Checking tokio v0.2.25
[INFO] [stderr]     Checking version-checker v0.1.0 (https://github.com/nymtech/nym?tag=v0.9.2#c2a1ed85)
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[INFO] [stderr]     Checking block-buffer v0.7.3
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[INFO] [stderr]     Checking chacha v0.3.0
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[INFO] [stderr]     Checking crypto-mac v0.8.0
[INFO] [stderr]     Checking ctr v0.3.2
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[INFO] [stderr]     Checking rand v0.8.3
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[INFO] [stderr]     Checking webpki-roots v0.21.0
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling syn-mid v0.5.0
[INFO] [stderr]    Compiling serde_derive v1.0.123
[INFO] [stderr]    Compiling zeroize_derive v1.0.1
[INFO] [stderr]    Compiling tokio-macros v1.1.0
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[INFO] [stderr]    Compiling tracing-attributes v0.1.12
[INFO] [stderr]    Compiling pin-project-internal v0.4.22
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[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.3
[INFO] [stderr]    Compiling proc-macro-error v1.0.3
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[INFO] [stderr]     Checking curve25519-dalek v3.0.2
[INFO] [stderr]    Compiling structopt-derive v0.4.14
[INFO] [stderr]     Checking futures-util v0.3.12
[INFO] [stderr]     Checking sphinx v0.1.0 (https://github.com/nymtech/sphinx?rev=283dcc77dec8ee9ed3bed58c2b878e9c18320723#283dcc77)
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[INFO] [stderr]     Checking tracing-futures v0.2.4
[INFO] [stderr]     Checking nymsphinx-types v0.1.0 (https://github.com/nymtech/nym?tag=v0.9.2#c2a1ed85)
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[INFO] [stderr]     Checking bincode v1.3.1
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[INFO] [stderr]     Checking crypto v0.1.0 (https://github.com/nymtech/nym?tag=v0.9.2#c2a1ed85)
[INFO] [stderr]     Checking nymsphinx-addressing v0.1.0 (https://github.com/nymtech/nym?tag=v0.9.2#c2a1ed85)
[INFO] [stderr]     Checking nymsphinx-params v0.1.0 (https://github.com/nymtech/nym?tag=v0.9.2#c2a1ed85)
[INFO] [stderr]     Checking nymsphinx-framing v0.1.0 (https://github.com/nymtech/nym?tag=v0.9.2#c2a1ed85)
[INFO] [stderr]     Checking topology v0.1.0 (https://github.com/nymtech/nym?tag=v0.9.2#c2a1ed85)
[INFO] [stderr]     Checking nymsphinx-forwarding v0.1.0 (https://github.com/nymtech/nym?tag=v0.9.2#c2a1ed85)
[INFO] [stderr]     Checking nymsphinx-chunking v0.1.0 (https://github.com/nymtech/nym?tag=v0.9.2#c2a1ed85)
[INFO] [stderr]     Checking nymsphinx-acknowledgements v0.1.0 (https://github.com/nymtech/nym?tag=v0.9.2#c2a1ed85)
[INFO] [stderr]     Checking nymsphinx-anonymous-replies v0.1.0 (https://github.com/nymtech/nym?tag=v0.9.2#c2a1ed85)
[INFO] [stderr]     Checking tracing-subscriber v0.2.15
[INFO] [stderr]     Checking nymsphinx-cover v0.1.0 (https://github.com/nymtech/nym?tag=v0.9.2#c2a1ed85)
[INFO] [stderr]     Checking nymsphinx v0.1.0 (https://github.com/nymtech/nym?tag=v0.9.2#c2a1ed85)
[INFO] [stderr]     Checking hyper-rustls v0.22.1
[INFO] [stderr]     Checking websocket-requests v0.1.0 (https://github.com/nymtech/nym?tag=v0.9.2#c2a1ed85)
[INFO] [stderr]     Checking reqwest v0.11.0
[INFO] [stderr]     Checking btcbc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]  Documenting btcbc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/bin/server.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 `btcbc`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name server src/bin/server.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern bincode=/opt/rustwide/target/debug/deps/libbincode-9725a63d581b2b40.rmeta --extern btcbc=/opt/rustwide/target/debug/deps/libbtcbc-b51a897c01050c0f.rmeta --extern futures=/opt/rustwide/target/debug/deps/libfutures-9f5da9e9130eaf03.rmeta --extern hex=/opt/rustwide/target/debug/deps/libhex-701ef8df1d18df88.rmeta --extern nym_addressing=/opt/rustwide/target/debug/deps/libnymsphinx_addressing-ee258f43bc3094d4.rmeta --extern reqwest=/opt/rustwide/target/debug/deps/libreqwest-00f49b9af6918b73.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-22980cad494a1d85.rmeta --extern structopt=/opt/rustwide/target/debug/deps/libstructopt-01b22d07147f4eaa.rmeta --extern tokio=/opt/rustwide/target/debug/deps/libtokio-1fc6f1854c396576.rmeta --extern tokio_tungstenite=/opt/rustwide/target/debug/deps/libtokio_tungstenite-57869f271fea9ebb.rmeta --extern tracing=/opt/rustwide/target/debug/deps/libtracing-21b892c3c925e91a.rmeta --extern tracing_subscriber=/opt/rustwide/target/debug/deps/libtracing_subscriber-f85f48018db11899.rmeta --extern nym_websocket=/opt/rustwide/target/debug/deps/libwebsocket_requests-7099490115db19b6.rmeta --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "95c60c728e47216ae11c040210dbc98626e9dde7fb49bc35a63f088b520f6ecc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "95c60c728e47216ae11c040210dbc98626e9dde7fb49bc35a63f088b520f6ecc", kill_on_drop: false }`
[INFO] [stdout] 95c60c728e47216ae11c040210dbc98626e9dde7fb49bc35a63f088b520f6ecc
