[INFO] cloning repository https://github.com/leo60228/mastocrom
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/leo60228/mastocrom" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fleo60228%2Fmastocrom", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fleo60228%2Fmastocrom'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9ae1825f26bd8868471ecf5c4a95bd8b44c6d000
[INFO] documenting leo60228/mastocrom 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%2Fleo60228%2Fmastocrom" "/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/leo60228/mastocrom 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/leo60228/mastocrom
[INFO] finished tweaking git repo https://github.com/leo60228/mastocrom
[INFO] tweaked toml for git repo https://github.com/leo60228/mastocrom written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate git repo https://github.com/leo60228/mastocrom 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-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" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3ec68e309e5830c6541238d4ca8312884e1735243791ab04cfcd8d6b2fa46bba
[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" "3ec68e309e5830c6541238d4ca8312884e1735243791ab04cfcd8d6b2fa46bba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3ec68e309e5830c6541238d4ca8312884e1735243791ab04cfcd8d6b2fa46bba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3ec68e309e5830c6541238d4ca8312884e1735243791ab04cfcd8d6b2fa46bba", kill_on_drop: false }`
[INFO] [stdout] 3ec68e309e5830c6541238d4ca8312884e1735243791ab04cfcd8d6b2fa46bba
[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" "+1.54.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e330f46331df8f6364aa74078bce99e0177ba2135a2bf5d9220965776aedd063
[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" "e330f46331df8f6364aa74078bce99e0177ba2135a2bf5d9220965776aedd063", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.38
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[INFO] [stderr]    Compiling phf_generator v0.7.24
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[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.67
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[INFO] [stderr]    Compiling serde_derive v1.0.114
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[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.2
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[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.67
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[INFO] [stderr]     Checking sluice v0.5.2
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[INFO] [stderr]     Checking futures v0.3.5
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[INFO] [stderr]     Checking serde_urlencoded v0.5.5
[INFO] [stderr]     Checking serde_qs v0.4.6
[INFO] [stderr]     Checking toml v0.5.6
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling graphql-introspection-query v0.1.0
[INFO] [stderr]     Checking gloo-timers v0.2.1
[INFO] [stderr]     Checking futures-timer v3.0.2
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling native-tls v0.2.4
[INFO] [stderr]     Checking serde_urlencoded v0.6.1
[INFO] [stderr]     Checking publicsuffix v1.5.4
[INFO] [stderr]     Checking async-std v1.6.2
[INFO] [stderr]     Checking flexi_logger v0.15.2
[INFO] [stderr]    Compiling parking_lot_core v0.6.2
[INFO] [stderr]    Compiling parking_lot v0.9.0
[INFO] [stderr]    Compiling hyper v0.12.35
[INFO] [stderr]     Checking cookie_store v0.7.0
[INFO] [stderr]    Compiling cargo_metadata v0.6.4
[INFO] [stderr]    Compiling graphql_client_codegen v0.9.0
[INFO] [stderr]    Compiling markup5ever v0.10.0
[INFO] [stderr]     Checking tokio-reactor v0.1.12
[INFO] [stderr]    Compiling skeptic v0.13.4
[INFO] [stderr]     Checking tokio-tcp v0.1.4
[INFO] [stderr]     Checking tokio v0.1.22
[INFO] [stderr]    Compiling elefren v0.22.0
[INFO] [stderr]     Checking tungstenite v0.10.1
[INFO] [stderr]     Checking attohttpc v0.13.0
[INFO] [stderr]    Compiling graphql_query_derive v0.9.0
[INFO] [stderr]     Checking hyper-tls v0.3.2
[INFO] [stderr]     Checking reqwest v0.9.24
[INFO] [stderr]     Checking http-types v2.4.0
[INFO] [stderr]     Checking async-native-tls v0.3.3
[INFO] [stderr]     Checking async-h1 v2.1.2
[INFO] [stderr]     Checking graphql_client v0.9.0
[INFO] [stderr]     Checking http-client v3.0.0
[INFO] [stderr]     Checking surf v2.0.0-alpha.4
[INFO] [stderr]     Checking crom v0.2.0
[INFO] [stderr]  Documenting mastocrom v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(never_type)]
[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 `mastocrom`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name mastocrom 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 anyhow=/opt/rustwide/target/debug/deps/libanyhow-7085a7b722fc1f60.rmeta --extern async_std=/opt/rustwide/target/debug/deps/libasync_std-2cd6fb11aab20ed5.rmeta --extern attohttpc=/opt/rustwide/target/debug/deps/libattohttpc-85f223faa8d7d6b4.rmeta --extern crom=/opt/rustwide/target/debug/deps/libcrom-d8f3a07c33ecffd7.rmeta --extern elefren=/opt/rustwide/target/debug/deps/libelefren-e4339b3eb79ab401.rmeta --extern flexi_logger=/opt/rustwide/target/debug/deps/libflexi_logger-22e33f6a8800eddd.rmeta --extern graphql_client=/opt/rustwide/target/debug/deps/libgraphql_client-a94637e3214b9d9d.rmeta --extern html5ever=/opt/rustwide/target/debug/deps/libhtml5ever-698dbbbef1ee2578.rmeta --extern http_client=/opt/rustwide/target/debug/deps/libhttp_client-63484511e59a6e7f.rmeta --extern itertools=/opt/rustwide/target/debug/deps/libitertools-c4c64193375fa54a.rmeta --extern lazy_format=/opt/rustwide/target/debug/deps/liblazy_format-e9f0c2b5582790db.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-b09ad02db399754e.rmeta --extern openssl=/opt/rustwide/target/debug/deps/libopenssl-1c7918e2678d5ab7.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-89acde0dcd506ea1.rmeta --extern shlex=/opt/rustwide/target/debug/deps/libshlex-feffae57b27d8637.rmeta --extern structopt=/opt/rustwide/target/debug/deps/libstructopt-18947a083214615b.rmeta --extern url=/opt/rustwide/target/debug/deps/liburl-535ef408ebb37641.rmeta --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "e330f46331df8f6364aa74078bce99e0177ba2135a2bf5d9220965776aedd063", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e330f46331df8f6364aa74078bce99e0177ba2135a2bf5d9220965776aedd063", kill_on_drop: false }`
[INFO] [stdout] e330f46331df8f6364aa74078bce99e0177ba2135a2bf5d9220965776aedd063
