[INFO] cloning repository https://github.com/ratnadeepb/Rust_async_demos
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ratnadeepb/Rust_async_demos" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fratnadeepb%2FRust_async_demos", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fratnadeepb%2FRust_async_demos'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c898ae6b6f0ac04d77990c142ce7fcd16f339d85
[INFO] documenting ratnadeepb/Rust_async_demos against beta-2022-05-20 for beta-1.62-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fratnadeepb%2FRust_async_demos" "/workspace/builds/worker-25/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-25/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ratnadeepb/Rust_async_demos on toolchain beta-2022-05-20
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ratnadeepb/Rust_async_demos
[INFO] finished tweaking git repo https://github.com/ratnadeepb/Rust_async_demos
[INFO] tweaked toml for git repo https://github.com/ratnadeepb/Rust_async_demos written to /workspace/builds/worker-25/source/Cargo.toml
[INFO] crate git repo https://github.com/ratnadeepb/Rust_async_demos already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: /workspace/builds/worker-25/source/tokio-oneshot-joinhandle/Cargo.toml: unused manifest key: dependencies.tokio.feature
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-25/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-25/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-05-20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 280741d835538dbcde96c30c9f91250e5def6e71376e8b6a49fce273d62c8d1d
[INFO] running `Command { std: "docker" "start" "-a" "280741d835538dbcde96c30c9f91250e5def6e71376e8b6a49fce273d62c8d1d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "280741d835538dbcde96c30c9f91250e5def6e71376e8b6a49fce273d62c8d1d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "280741d835538dbcde96c30c9f91250e5def6e71376e8b6a49fce273d62c8d1d", kill_on_drop: false }`
[INFO] [stdout] 280741d835538dbcde96c30c9f91250e5def6e71376e8b6a49fce273d62c8d1d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-25/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-25/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-05-20" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bc37e40ed341c8183776c1a8d08dfd62bef1e1ced26776f08d49baf69f448521
[INFO] running `Command { std: "docker" "start" "-a" "bc37e40ed341c8183776c1a8d08dfd62bef1e1ced26776f08d49baf69f448521", kill_on_drop: false }`
[INFO] [stderr] warning: /opt/rustwide/workdir/tokio-oneshot-joinhandle/Cargo.toml: unused manifest key: dependencies.tokio.feature
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.67
[INFO] [stderr]    Compiling const_fn v0.4.2
[INFO] [stderr]     Checking futures-io v0.3.21
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]     Checking pin-project-lite v0.2.9
[INFO] [stderr]     Checking once_cell v1.12.0
[INFO] [stderr]     Checking cache-padded v1.1.1
[INFO] [stderr]    Compiling rayon-core v1.9.0
[INFO] [stderr]    Compiling futures-channel v0.3.21
[INFO] [stderr]     Checking fastrand v1.4.0
[INFO] [stderr]     Checking parking v2.0.0
[INFO] [stderr]    Compiling futures-util v0.3.21
[INFO] [stderr]     Checking pin-project-lite v0.1.10
[INFO] [stderr]     Checking futures-sink v0.3.21
[INFO] [stderr]     Checking waker-fn v1.1.0
[INFO] [stderr]     Checking smallvec v1.4.2
[INFO] [stderr]    Compiling typenum v1.12.0
[INFO] [stderr]     Checking adler32 v1.2.0
[INFO] [stderr]     Checking arc-swap v0.4.7
[INFO] [stderr]     Checking bytes v0.6.0
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[INFO] [stderr]     Checking event-listener v2.5.1
[INFO] [stderr]     Checking async-task v4.0.2
[INFO] [stderr]    Compiling crc32fast v1.2.1
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]     Checking gimli v0.22.0
[INFO] [stderr]     Checking adler v0.2.3
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[INFO] [stderr]     Checking atomic-waker v1.0.0
[INFO] [stderr]     Checking weezl v0.1.1
[INFO] [stderr]     Checking rustc-demangle v0.1.18
[INFO] [stderr]     Checking color_quant v1.1.0
[INFO] [stderr]     Checking object v0.21.1
[INFO] [stderr]     Checking termcolor v1.1.0
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[INFO] [stderr]     Checking cpuid-bool v0.1.2
[INFO] [stderr]     Checking parser-combinators v0.1.0 (https://github.com/sergey-melnychuk/rust-parser-combinators?tag=0.1.3#9f87600d)
[INFO] [stderr]  Documenting timer v0.1.0 (/opt/rustwide/workdir/timer)
[INFO] [stderr]  Documenting thread-demo v0.1.0 (/opt/rustwide/workdir/thread-demo)
[INFO] [stderr]  Documenting parser-combinator v0.1.0 (/opt/rustwide/workdir/parser-combinator)
[INFO] [stderr]    Compiling crossbeam-utils v0.8.0
[INFO] [stderr]    Compiling memoffset v0.5.6
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling num-bigint v0.3.0
[INFO] [stderr]    Compiling tokio v0.3.7
[INFO] [stderr]    Compiling rayon v1.5.0
[INFO] [stderr]    Compiling num-iter v0.1.41
[INFO] [stderr]    Compiling num-rational v0.3.0
[INFO] [stderr]    Compiling miniz_oxide v0.4.3
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]     Checking instant v0.1.7
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking byteorder v1.3.4
[INFO] [stderr]     Checking concurrent-queue v1.2.2
[INFO] [stderr]     Checking lock_api v0.4.1
[INFO] [stderr]     Checking miniz_oxide v0.3.7
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]    Compiling error-chain v0.12.4
[INFO] [stderr]     Checking async-channel v1.5.1
[INFO] [stderr]     Checking async-mutex v1.4.0
[INFO] [stderr]     Checking gif v0.11.1
[INFO] [stderr]     Checking deflate v0.8.6
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking futures-lite v1.11.1
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[INFO] [stderr]     Checking tiff v0.5.0
[INFO] [stderr]     Checking kv-log-macro v1.0.7
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[INFO] [stderr]     Checking png v0.16.7
[INFO] [stderr]     Checking crossbeam-epoch v0.9.0
[INFO] [stderr]     Checking crossbeam-channel v0.5.0
[INFO] [stderr]     Checking crossbeam-queue v0.3.0
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking mio v0.7.14
[INFO] [stderr]     Checking parking_lot_core v0.8.0
[INFO] [stderr]     Checking signal-hook-registry v1.2.1
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[INFO] [stderr]     Checking polling v2.0.1
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking backtrace v0.3.53
[INFO] [stderr]     Checking async-executor v1.3.0
[INFO] [stderr]     Checking blocking v1.0.2
[INFO] [stderr]     Checking regex v1.4.1
[INFO] [stderr]     Checking async-io v1.1.10
[INFO] [stderr]     Checking parking_lot v0.11.0
[INFO] [stderr]     Checking crossbeam-deque v0.8.0
[INFO] [stderr]  Documenting testing-mio v0.1.0 (/opt/rustwide/workdir/testing-mio)
[INFO] [stderr]  Documenting mio-http v0.1.0 (/opt/rustwide/workdir/mio-http)
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]     Checking block-buffer v0.9.0
[INFO] [stderr]     Checking crossbeam v0.8.0
[INFO] [stderr]     Checking async-global-executor v1.3.0
[INFO] [stderr]     Checking env_logger v0.8.1
[INFO] [stderr]     Checking sha-1 v0.9.1
[INFO] [stderr]    Compiling futures-macro v0.3.21
[INFO] [stderr]    Compiling tokio-macros v0.3.0
[INFO] [stderr]     Checking num v0.3.0
[INFO] [stderr]  Documenting crossbeam-parallel-pipeline v0.1.0 (/opt/rustwide/workdir/crossbeam-parallel-pipeline)
[INFO] [stderr]     Checking async-std v1.6.5
[INFO] [stderr]  Documenting multi-threaded-http v0.1.0 (/opt/rustwide/workdir/multi-threaded-http)
[INFO] [stderr]     Checking jpeg-decoder v0.1.20
[INFO] [stderr]  Documenting rayon-crossbeam-demo v0.1.0 (/opt/rustwide/workdir/rayon-crossbeam-demo)
[INFO] [stderr]     Checking image v0.23.10
[INFO] [stderr]     Checking futures-executor v0.3.21
[INFO] [stderr]     Checking futures v0.3.21
[INFO] [stderr]  Documenting hello-futures v0.1.0 (/opt/rustwide/workdir/hello-futures)
[INFO] [stderr]  Documenting a-chat v0.1.0 (/opt/rustwide/workdir/a-chat)
[INFO] [stderr]  Documenting hello-async v0.1.0 (/opt/rustwide/workdir/hello-async)
[INFO] [stderr]  Documenting tokio-tcpserver v0.1.0 (/opt/rustwide/workdir/tokio-tcpserver)
[INFO] [stderr]  Documenting hello-tokio v0.1.0 (/opt/rustwide/workdir/hello-tokio)
[INFO] [stderr]  Documenting tokio-oneshot-joinhandle v0.1.0 (/opt/rustwide/workdir/tokio-oneshot-joinhandle)
[INFO] [stderr]  Documenting tokio-basic v0.1.0 (/opt/rustwide/workdir/tokio-basic)
[INFO] [stderr]  Documenting threadpool-demo v0.1.0 (/opt/rustwide/workdir/threadpool-demo)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 10s
[INFO] running `Command { std: "docker" "inspect" "bc37e40ed341c8183776c1a8d08dfd62bef1e1ced26776f08d49baf69f448521", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bc37e40ed341c8183776c1a8d08dfd62bef1e1ced26776f08d49baf69f448521", kill_on_drop: false }`
[INFO] [stdout] bc37e40ed341c8183776c1a8d08dfd62bef1e1ced26776f08d49baf69f448521
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-25/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-25/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=warn" "-e" "DOCS_RS=1" "-e" "RUSTC_BOOTSTRAP=1" "-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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-05-20" "rustdoc" "--lib" "-Zrustdoc-map" "--frozen" "--message-format=json" "--" "-Z" "unstable-options" "--document-private-items", kill_on_drop: false }`
[INFO] [stdout] f95534252c90eb3f8a29eb845a3962a6e7bab42e311ae8a9a83c2adf27ec7a13
[INFO] running `Command { std: "docker" "start" "-a" "f95534252c90eb3f8a29eb845a3962a6e7bab42e311ae8a9a83c2adf27ec7a13", kill_on_drop: false }`
[INFO] [stderr] warning: /opt/rustwide/workdir/tokio-oneshot-joinhandle/Cargo.toml: unused manifest key: dependencies.tokio.feature
[INFO] [stderr] error: manifest path `/opt/rustwide/workdir/Cargo.toml` is a virtual manifest, but this command requires running against an actual package in this workspace
[INFO] running `Command { std: "docker" "inspect" "f95534252c90eb3f8a29eb845a3962a6e7bab42e311ae8a9a83c2adf27ec7a13", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f95534252c90eb3f8a29eb845a3962a6e7bab42e311ae8a9a83c2adf27ec7a13", kill_on_drop: false }`
[INFO] [stdout] f95534252c90eb3f8a29eb845a3962a6e7bab42e311ae8a9a83c2adf27ec7a13