[INFO] fetching crate async-rust 0.1.1...
[INFO] documenting async-rust-0.1.1 against try#6ee483316d2e4581572121d60a955affb2032eb3+cargoflags=-Zrustdoc-scrape-examples for scrape-examples
[INFO] extracting crate async-rust 0.1.1 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate async-rust 0.1.1 on toolchain 6ee483316d2e4581572121d60a955affb2032eb3
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6ee483316d2e4581572121d60a955affb2032eb3" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate async-rust 0.1.1
[INFO] finished tweaking crates.io crate async-rust 0.1.1
[INFO] tweaked toml for crates.io crate async-rust 0.1.1 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate async-rust 0.1.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6ee483316d2e4581572121d60a955affb2032eb3" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:bb5b0feb4f87116a4ea905b7ff5bf5b85913db05e9f0fbc1abdd3168928d9075" "/opt/rustwide/cargo-home/bin/cargo" "+6ee483316d2e4581572121d60a955affb2032eb3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 525e1350a6ee2b480f011236b77c3e0eedf7b8e57159e2a26119998ec0e7f660
[INFO] running `Command { std: "docker" "start" "-a" "525e1350a6ee2b480f011236b77c3e0eedf7b8e57159e2a26119998ec0e7f660", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "525e1350a6ee2b480f011236b77c3e0eedf7b8e57159e2a26119998ec0e7f660", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "525e1350a6ee2b480f011236b77c3e0eedf7b8e57159e2a26119998ec0e7f660", kill_on_drop: false }`
[INFO] [stdout] 525e1350a6ee2b480f011236b77c3e0eedf7b8e57159e2a26119998ec0e7f660
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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:bb5b0feb4f87116a4ea905b7ff5bf5b85913db05e9f0fbc1abdd3168928d9075" "/opt/rustwide/cargo-home/bin/cargo" "+6ee483316d2e4581572121d60a955affb2032eb3" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json" "-Zrustdoc-scrape-examples", kill_on_drop: false }`
[INFO] [stdout] 41173b4e23420b00006d10e83b9ae3a447f9d7c040eeee4bbcd897eec419daa4
[INFO] running `Command { std: "docker" "start" "-a" "41173b4e23420b00006d10e83b9ae3a447f9d7c040eeee4bbcd897eec419daa4", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.121
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling log v0.4.16
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.89
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking pin-project-lite v0.2.8
[INFO] [stderr]    Compiling futures-core v0.3.21
[INFO] [stderr]     Checking once_cell v1.10.0
[INFO] [stderr]     Checking bytes v1.1.0
[INFO] [stderr]     Checking smallvec v1.8.0
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling typenum v1.15.0
[INFO] [stderr]    Compiling parking_lot_core v0.9.1
[INFO] [stderr]     Checking slab v0.4.5
[INFO] [stderr]     Checking futures-sink v0.3.21
[INFO] [stderr]     Checking lock_api v0.4.6
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking fnv v1.0.7
[INFO] [stderr]     Checking itoa v1.0.1
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[INFO] [stderr]    Compiling futures-task v0.3.21
[INFO] [stderr]    Compiling futures-channel v0.3.21
[INFO] [stderr]    Compiling futures-util v0.3.21
[INFO] [stderr]     Checking matches v0.1.9
[INFO] [stderr]     Checking tinyvec_macros v0.1.0
[INFO] [stderr]    Compiling quote v1.0.16
[INFO] [stderr]     Checking futures-io v0.3.21
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling generic-array v0.14.5
[INFO] [stderr]     Checking tinyvec v1.5.1
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling autocfg v0.1.8
[INFO] [stderr]     Checking rand_core v0.4.2
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling httparse v1.6.0
[INFO] [stderr]     Checking unicode-bidi v0.3.7
[INFO] [stderr]    Compiling cc v1.0.73
[INFO] [stderr]    Compiling pkg-config v0.3.24
[INFO] [stderr]     Checking http v0.2.6
[INFO] [stderr]     Checking num_cpus v1.13.1
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[INFO] [stderr]     Checking parking_lot v0.12.0
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[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking getrandom v0.2.5
[INFO] [stderr]     Checking futures v0.1.31
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling serde_derive v1.0.136
[INFO] [stderr]     Checking percent-encoding v2.1.0
[INFO] [stderr]     Checking crypto-common v0.1.3
[INFO] [stderr]     Checking block-buffer v0.10.2
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]    Compiling parking_lot_core v0.6.2
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling indexmap v1.8.0
[INFO] [stderr]     Checking tracing-core v0.1.23
[INFO] [stderr]    Compiling serde v1.0.136
[INFO] [stderr]     Checking ppv-lite86 v0.2.16
[INFO] [stderr]     Checking tokio-io v0.1.13
[INFO] [stderr]    Compiling openssl-sys v0.9.72
[INFO] [stderr]     Checking tracing v0.1.32
[INFO] [stderr]     Checking digest v0.10.3
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking form_urlencoded v1.0.1
[INFO] [stderr]     Checking smallvec v0.6.14
[INFO] [stderr]    Compiling parking_lot v0.9.0
[INFO] [stderr]     Checking hashbrown v0.11.2
[INFO] [stderr]     Checking cpufeatures v0.2.2
[INFO] [stderr]     Checking foreign-types-shared v0.1.1
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[INFO] [stderr]    Compiling openssl v0.10.38
[INFO] [stderr]     Checking foreign-types v0.3.2
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]     Checking sha-1 v0.10.0
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking idna v0.2.3
[INFO] [stderr]     Checking generic-array v0.12.4
[INFO] [stderr]     Checking net2 v0.2.37
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling ahash v0.7.6
[INFO] [stderr]     Checking lock_api v0.3.4
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[INFO] [stderr]    Compiling paste v1.0.6
[INFO] [stderr]     Checking byte-tools v0.3.1
[INFO] [stderr]    Compiling crossbeam-utils v0.8.8
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling native-tls v0.2.8
[INFO] [stderr]    Compiling encoding_rs v0.8.30
[INFO] [stderr]    Compiling io-lifetimes v0.6.1
[INFO] [stderr]    Compiling unicase v1.4.2
[INFO] [stderr]     Checking block-padding v0.1.5
[INFO] [stderr]     Checking mio v0.6.23
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[INFO] [stderr]    Compiling bytestring v1.0.0
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[INFO] [stderr]    Compiling rand v0.6.5
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[INFO] [stderr]    Compiling time-macros v0.2.4
[INFO] [stderr]     Checking ryu v1.0.9
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[INFO] [stderr]    Compiling regex v1.5.5
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[INFO] [stderr]    Compiling serde_json v1.0.79
[INFO] [stderr]    Compiling protobuf v2.27.1
[INFO] [stderr]     Checking openssl-probe v0.1.5
[INFO] [stderr]    Compiling rustix v0.34.0
[INFO] [stderr]    Compiling firestorm v0.5.0
[INFO] [stderr]     Checking num_threads v0.1.5
[INFO] [stderr]     Checking time v0.3.9
[INFO] [stderr]     Checking tokio-reactor v0.1.12
[INFO] [stderr]     Checking block-buffer v0.7.3
[INFO] [stderr]     Checking digest v0.8.1
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]     Checking rand_xorshift v0.1.1
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[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking rand_jitter v0.1.4
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]     Checking fake-simd v0.1.2
[INFO] [stderr]     Checking linux-raw-sys v0.0.42
[INFO] [stderr]    Compiling actix-router v0.5.0
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]     Checking safemem v0.3.3
[INFO] [stderr]     Checking opaque-debug v0.2.3
[INFO] [stderr]    Compiling tokio-macros v1.7.0
[INFO] [stderr]    Compiling futures-macro v0.3.21
[INFO] [stderr]    Compiling actix-macros v0.2.3
[INFO] [stderr]    Compiling thiserror-impl v1.0.30
[INFO] [stderr]    Compiling derive_more v0.99.17
[INFO] [stderr]     Checking mime v0.3.16
[INFO] [stderr]     Checking percent-encoding v1.0.1
[INFO] [stderr]     Checking language-tags v0.3.2
[INFO] [stderr]    Compiling actix-web-codegen v4.0.0
[INFO] [stderr]     Checking url v1.7.2
[INFO] [stderr]     Checking tokio v1.17.0
[INFO] [stderr]     Checking sha-1 v0.8.2
[INFO] [stderr]     Checking base64 v0.9.3
[INFO] [stderr]    Compiling actix_derive v0.6.0
[INFO] [stderr]     Checking thiserror v1.0.30
[INFO] [stderr]     Checking which v4.2.5
[INFO] [stderr]     Checking mime v0.2.6
[INFO] [stderr]     Checking crossbeam-channel v0.5.4
[INFO] [stderr]     Checking tokio-tcp v0.1.4
[INFO] [stderr]     Checking tokio-tls v0.2.1
[INFO] [stderr]     Checking tokio-codec v0.1.2
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking dirs-sys-next v0.1.2
[INFO] [stderr]     Checking base64 v0.10.1
[INFO] [stderr]     Checking nibble_vec v0.1.0
[INFO] [stderr]     Checking endian-type v0.1.2
[INFO] [stderr]     Checking utf-8 v0.7.6
[INFO] [stderr]     Checking traitobject v0.1.0
[INFO] [stderr]     Checking fastrand v1.7.0
[INFO] [stderr]     Checking language-tags v0.2.2
[INFO] [stderr]     Checking try-lock v0.2.3
[INFO] [stderr]     Checking typeable v0.1.2
[INFO] [stderr]     Checking remove_dir_all v0.5.3
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]     Checking hyper v0.10.16
[INFO] [stderr]     Checking tempfile v3.3.0
[INFO] [stderr]     Checking websocket-base v0.26.2
[INFO] [stderr]     Checking tungstenite v0.17.2
[INFO] [stderr]     Checking radix_trie v0.2.1
[INFO] [stderr]     Checking dirs-next v2.0.0
[INFO] [stderr]     Checking colored v2.0.0
[INFO] [stderr]     Checking nix v0.23.1
[INFO] [stderr]     Checking protoc v2.27.1
[INFO] [stderr]     Checking fd-lock v3.0.5
[INFO] [stderr]     Checking tokio-util v0.6.9
[INFO] [stderr]     Checking actix-rt v2.7.0
[INFO] [stderr]     Checking tokio-util v0.7.0
[INFO] [stderr]     Checking http-body v0.4.4
[INFO] [stderr]     Checking utf8parse v0.2.0
[INFO] [stderr]     Checking unicode-segmentation v1.9.0
[INFO] [stderr]     Checking tower-service v0.3.1
[INFO] [stderr]     Checking unicode-width v0.1.9
[INFO] [stderr]     Checking tokio-stream v0.1.8
[INFO] [stderr]     Checking actix-codec v0.5.0
[INFO] [stderr]     Checking h2 v0.3.12
[INFO] [stderr]     Checking local-channel v0.1.2
[INFO] [stderr]     Checking actix-server v2.1.1
[INFO] [stderr]     Checking futures-executor v0.3.21
[INFO] [stderr]     Checking actix v0.13.0
[INFO] [stderr]     Checking futures v0.3.21
[INFO] [stderr]     Checking protobuf-codegen v2.27.1
[INFO] [stderr]     Checking tokio-tungstenite v0.17.1
[INFO] [stderr]     Checking simple_logger v2.1.0
[INFO] [stderr]     Checking websocket v0.26.3
[INFO] [stderr]     Checking protoc-rust v2.27.1
[INFO] [stderr]     Checking rustyline v9.1.2
[INFO] [stderr]     Checking serde_urlencoded v0.7.1
[INFO] [stderr]     Checking actix-http v3.0.4
[INFO] [stderr]     Checking hyper v0.14.18
[INFO] [stderr]     Checking actix-web v4.0.1
[INFO] [stderr]     Checking actix-web-actors v4.1.0
[INFO] [stderr]     Scraping async-rust v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr] warning: failed to scan bin "enum" in package `async-rust` for example code usage
[INFO] [stderr]     Try running with `--verbose` to see the error message.
[INFO] [stderr]     If an example or library should not be scanned, then consider adding `doc-scrape-examples = false` to its `[[example]]` or `[lib]` definition in Cargo.toml
[INFO] [stderr] warning: `async-rust` (bin "enum") generated 1 warning
[INFO] [stderr]  Documenting async-rust v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr] error: could not document `async-rust`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2021 --crate-type bin --crate-name global global.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items '-Arustdoc::private-intra-doc-links' -C metadata=50aaf43d506a7c51 -Zunstable-options -L dependency=/opt/rustwide/target/debug/deps --extern actix=/opt/rustwide/target/debug/deps/libactix-310c0f28a40b2303.rmeta --extern actix_http=/opt/rustwide/target/debug/deps/libactix_http-42f99d38fc105bb4.rmeta --extern actix_rt=/opt/rustwide/target/debug/deps/libactix_rt-b7c0c187c0cb7cd7.rmeta --extern actix_web=/opt/rustwide/target/debug/deps/libactix_web-33bd52762717e3e0.rmeta --extern actix_web_actors=/opt/rustwide/target/debug/deps/libactix_web_actors-467ae2f764a32de7.rmeta --extern crossbeam_channel=/opt/rustwide/target/debug/deps/libcrossbeam_channel-953c0c9c26457b2e.rmeta --extern futures=/opt/rustwide/target/debug/deps/libfutures-af8f47706b285c99.rmeta --extern hyper=/opt/rustwide/target/debug/deps/libhyper-f9966ef9a89077bc.rmeta --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-3ab14ef94a1f89cf.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-45a822f298a42bfe.rmeta --extern protoc_rust=/opt/rustwide/target/debug/deps/libprotoc_rust-49df9ffacc6520d8.rmeta --extern rustyline=/opt/rustwide/target/debug/deps/librustyline-a6df59c0e21b946e.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-fca5f19bbaa57159.rmeta --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-934b2a84ee4de554.rmeta --extern simple_logger=/opt/rustwide/target/debug/deps/libsimple_logger-f6822ad7c6bc3849.rmeta --extern tokio=/opt/rustwide/target/debug/deps/libtokio-320e21cff5761928.rmeta --extern tokio_stream=/opt/rustwide/target/debug/deps/libtokio_stream-722a1574da1fd8b9.rmeta --extern tokio_tungstenite=/opt/rustwide/target/debug/deps/libtokio_tungstenite-03f72f48c3886ffd.rmeta --extern tungstenite=/opt/rustwide/target/debug/deps/libtungstenite-8c78aa67af656d8e.rmeta --extern websocket=/opt/rustwide/target/debug/deps/libwebsocket-670ae6a5a9e1fa7a.rmeta --cap-lints=forbid --crate-version 0.1.1 --with-examples /opt/rustwide/target/debug/deps/async-rust-3dcf9ba4b63ae610.examples --with-examples /opt/rustwide/target/debug/deps/async-rust-6c0dbcce87f8a976.examples --with-examples /opt/rustwide/target/debug/deps/async-rust-2015b3f00e9c663f.examples --with-examples /opt/rustwide/target/debug/deps/async-rust-ff15fab81989435f.examples --with-examples /opt/rustwide/target/debug/deps/async-rust-61e1f2b8f7cd6701.examples --with-examples /opt/rustwide/target/debug/deps/async-rust-2fa33e54f481b119.examples --with-examples /opt/rustwide/target/debug/deps/async-rust-87f5118be5d56154.examples --with-examples /opt/rustwide/target/debug/deps/async-rust-37f75dacb026d10e.examples --with-examples /opt/rustwide/target/debug/deps/async-rust-f01b2144da2d0644.examples --with-examples /opt/rustwide/target/debug/deps/async-rust-bdcfdaeb97330078.examples --with-examples /opt/rustwide/target/debug/deps/async-rust-5382c2465f8709f4.examples --with-examples /opt/rustwide/target/debug/deps/async-rust-511070d6bc4e9011.examples` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "41173b4e23420b00006d10e83b9ae3a447f9d7c040eeee4bbcd897eec419daa4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "41173b4e23420b00006d10e83b9ae3a447f9d7c040eeee4bbcd897eec419daa4", kill_on_drop: false }`
[INFO] [stdout] 41173b4e23420b00006d10e83b9ae3a447f9d7c040eeee4bbcd897eec419daa4