[INFO] cloning repository https://github.com/hawkw/cargo-loom
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/hawkw/cargo-loom" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhawkw%2Fcargo-loom", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhawkw%2Fcargo-loom'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 26b1ce09f4ae1e75f6ddc70adc29fdecafe5ba46
[INFO] documenting hawkw/cargo-loom 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%2Fhawkw%2Fcargo-loom" "/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/hawkw/cargo-loom 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] removed /workspace/builds/worker-25/source/.cargo/config.toml
[INFO] started tweaking git repo https://github.com/hawkw/cargo-loom
[INFO] finished tweaking git repo https://github.com/hawkw/cargo-loom
[INFO] tweaked toml for git repo https://github.com/hawkw/cargo-loom written to /workspace/builds/worker-25/source/Cargo.toml
[INFO] crate git repo https://github.com/hawkw/cargo-loom 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] 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] c96a57d2a564fdd80334523df10ea519957dc953118d39273c237c39d87611cc
[INFO] running `Command { std: "docker" "start" "-a" "c96a57d2a564fdd80334523df10ea519957dc953118d39273c237c39d87611cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c96a57d2a564fdd80334523df10ea519957dc953118d39273c237c39d87611cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c96a57d2a564fdd80334523df10ea519957dc953118d39273c237c39d87611cc", kill_on_drop: false }`
[INFO] [stdout] c96a57d2a564fdd80334523df10ea519957dc953118d39273c237c39d87611cc
[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] bfc2c366e73d9b88f6fd8c6baf3abf9324269b40531cbb480b161b1e2963d0c0
[INFO] running `Command { std: "docker" "start" "-a" "bfc2c366e73d9b88f6fd8c6baf3abf9324269b40531cbb480b161b1e2963d0c0", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.38
[INFO] [stderr]    Compiling unicode-xid v0.2.3
[INFO] [stderr]    Compiling syn v1.0.92
[INFO] [stderr]    Compiling libc v0.2.125
[INFO] [stderr]    Compiling serde_derive v1.0.137
[INFO] [stderr]    Compiling serde v1.0.137
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling serde_json v1.0.81
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]     Checking pin-project-lite v0.2.9
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling camino v1.0.7
[INFO] [stderr]    Compiling parking_lot_core v0.9.3
[INFO] [stderr]    Compiling semver v1.0.9
[INFO] [stderr]     Checking is_ci v1.1.1
[INFO] [stderr]     Checking ansi_term v0.12.1
[INFO] [stderr]    Compiling eyre v0.6.8
[INFO] [stderr]    Compiling doc-comment v0.3.3
[INFO] [stderr]     Checking os_str_bytes v6.0.0
[INFO] [stderr]     Checking gimli v0.26.1
[INFO] [stderr]     Checking unicode-bidi v0.3.8
[INFO] [stderr]     Checking indenter v0.3.3
[INFO] [stderr]     Checking strsim v0.10.0
[INFO] [stderr]     Checking rustc-demangle v0.1.21
[INFO] [stderr]     Checking textwrap v0.15.0
[INFO] [stderr]    Compiling escargot v0.5.7
[INFO] [stderr]     Checking unicode-segmentation v1.9.0
[INFO] [stderr]     Checking tracing-core v0.1.26
[INFO] [stderr]     Checking tinyvec v1.6.0
[INFO] [stderr]     Checking thread_local v1.1.4
[INFO] [stderr]     Checking sharded-slab v0.1.4
[INFO] [stderr]    Compiling backtrace v0.3.65
[INFO] [stderr]     Checking miniz_oxide v0.5.1
[INFO] [stderr]     Checking clap_lex v0.2.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking tracing-log v0.1.3
[INFO] [stderr]     Checking heck v0.3.3
[INFO] [stderr]     Checking object v0.28.4
[INFO] [stderr]     Checking unicode-normalization v0.1.19
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking num_cpus v1.13.1
[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stderr]     Checking mio v0.8.3
[INFO] [stderr]     Checking socket2 v0.4.4
[INFO] [stderr]     Checking supports-color v1.3.0
[INFO] [stderr]     Checking parking_lot v0.12.0
[INFO] [stderr]     Checking owo-colors v3.4.0
[INFO] [stderr]     Checking idna v0.2.3
[INFO] [stderr]     Checking regex-automata v0.1.10
[INFO] [stderr]     Checking regex v1.5.5
[INFO] [stderr]     Checking url v2.2.2
[INFO] [stderr]     Checking addr2line v0.17.0
[INFO] [stderr]     Checking matchers v0.1.0
[INFO] [stderr]    Compiling tracing-attributes v0.1.21
[INFO] [stderr]    Compiling clap_derive v3.1.7
[INFO] [stderr]    Compiling tokio-macros v1.7.0
[INFO] [stderr]     Checking tokio v1.18.2
[INFO] [stderr]     Checking tracing v0.1.34
[INFO] [stderr]     Checking clap v3.1.17
[INFO] [stderr]     Checking tracing-serde v0.1.3
[INFO] [stderr]     Checking cargo-platform v0.1.2
[INFO] [stderr]     Checking tracing-subscriber v0.3.11
[INFO] [stderr]     Checking cargo_metadata v0.14.2
[INFO] [stderr]     Checking clap-cargo v0.8.0
[INFO] [stderr]     Checking tracing-error v0.2.0
[INFO] [stderr]     Checking color-spantrace v0.2.0
[INFO] [stderr]     Checking color-eyre v0.6.1
[INFO] [stderr]  Documenting cargo-loom v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: cargo-loom must be installed with: `RUSTFLAGS="--cfg tokio_unstable" cargo install cargo-loom`
[INFO] [stdout]  --> src/lib.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | / compile_error!(
[INFO] [stdout] 5 | |     "cargo-loom must be installed with: \
[INFO] [stdout] 6 | |     `RUSTFLAGS=\"--cfg tokio_unstable\" cargo install cargo-loom`"
[INFO] [stdout] 7 | | );
[INFO] [stdout]   | |_^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `tokio::task::JoinSet`
[INFO] [stdout]   --> src/lib.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 25 | use tokio::task::JoinSet;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^ no `JoinSet` in `task`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `cargo-loom`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2021 --crate-type lib --crate-name cargo_loom src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=8ca43b567e9bd4f8 -L dependency=/opt/rustwide/target/debug/deps --extern atty=/opt/rustwide/target/debug/deps/libatty-bd8d9140b805259e.rmeta --extern camino=/opt/rustwide/target/debug/deps/libcamino-1d20fc0b7af24a1f.rmeta --extern cargo_metadata=/opt/rustwide/target/debug/deps/libcargo_metadata-af453f70689eff2a.rmeta --extern clap=/opt/rustwide/target/debug/deps/libclap-15c743aee36419ab.rmeta --extern clap_cargo=/opt/rustwide/target/debug/deps/libclap_cargo-126168d7aaefbd8e.rmeta --extern color_eyre=/opt/rustwide/target/debug/deps/libcolor_eyre-7e525ebb99829c96.rmeta --extern escargot=/opt/rustwide/target/debug/deps/libescargot-2667c0d27fee2858.rmeta --extern heck=/opt/rustwide/target/debug/deps/libheck-0d9e993a31b4b522.rmeta --extern owo_colors=/opt/rustwide/target/debug/deps/libowo_colors-e7bb4f6861174588.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-955e0861c8250ba1.rmeta --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-d52ca2e48b8e43a0.rmeta --extern tokio=/opt/rustwide/target/debug/deps/libtokio-c265ef4c8b807c2e.rmeta --extern tracing=/opt/rustwide/target/debug/deps/libtracing-9c0dc2315905c789.rmeta --extern tracing_subscriber=/opt/rustwide/target/debug/deps/libtracing_subscriber-8b72422bb306d4b1.rmeta --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "bfc2c366e73d9b88f6fd8c6baf3abf9324269b40531cbb480b161b1e2963d0c0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bfc2c366e73d9b88f6fd8c6baf3abf9324269b40531cbb480b161b1e2963d0c0", kill_on_drop: false }`
[INFO] [stdout] bfc2c366e73d9b88f6fd8c6baf3abf9324269b40531cbb480b161b1e2963d0c0