[INFO] fetching crate snapbox 0.2.10...
[INFO] documenting snapbox-0.2.10 against beta-2022-05-20 for beta-1.62-rustdoc-1
[INFO] extracting crate snapbox 0.2.10 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate snapbox 0.2.10 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 crates.io crate snapbox 0.2.10
[INFO] finished tweaking crates.io crate snapbox 0.2.10
[INFO] tweaked toml for crates.io crate snapbox 0.2.10 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate snapbox 0.2.10 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]     Blocking waiting for file lock on package cache
[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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-05-20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f3d4a61777184d2bef285e9ed9eeb78ee2023a627cc2a6c60d7999062a9ea8c1
[INFO] running `Command { std: "docker" "start" "-a" "f3d4a61777184d2bef285e9ed9eeb78ee2023a627cc2a6c60d7999062a9ea8c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f3d4a61777184d2bef285e9ed9eeb78ee2023a627cc2a6c60d7999062a9ea8c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f3d4a61777184d2bef285e9ed9eeb78ee2023a627cc2a6c60d7999062a9ea8c1", kill_on_drop: false }`
[INFO] [stdout] f3d4a61777184d2bef285e9ed9eeb78ee2023a627cc2a6c60d7999062a9ea8c1
[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" "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] d1178a369bc0b2b5c8d39448d88248417180fafeacb731329aa7c149cb186f9c
[INFO] running `Command { std: "docker" "start" "-a" "d1178a369bc0b2b5c8d39448d88248417180fafeacb731329aa7c149cb186f9c", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.125
[INFO] [stderr]     Checking concolor-query v0.0.5
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]     Checking yansi v0.5.1
[INFO] [stderr]     Checking similar v2.1.0
[INFO] [stderr]     Checking normalize-line-endings v0.3.0
[INFO] [stderr]     Checking snapbox-macros v0.2.1
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking concolor v0.0.8
[INFO] [stderr]     Checking snapbox v0.2.10 (/opt/rustwide/workdir)
[INFO] [stderr]  Documenting snapbox v0.2.10 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unresolved link to `harness::Harness`
[INFO] [stdout]   --> src/lib.rs:1:1
[INFO] [stdout]    |
[INFO] [stdout] 1  | / //! # Snapshot testing toolbox
[INFO] [stdout] 2  | | //!
[INFO] [stdout] 3  | | //! > When you have to treat your tests like pets, instead of [cattle][trycmd]
[INFO] [stdout] 4  | | //!
[INFO] [stdout] ...  |
[INFO] [stdout] 93 | | //!
[INFO] [stdout] 94 | | //! [trycmd]: https://docs.rs/trycmd
[INFO] [stdout]    | |____________________________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(rustdoc::broken_intra_doc_links)]` on by default
[INFO] [stdout]    = note: the link appears in this line:
[INFO] [stdout]            
[INFO] [stdout]            - [`harness::Harness`] for discovering test inputs and asserting against snapshot files:
[INFO] [stdout]               ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    = note: no item named `harness` in scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.38s
[INFO] running `Command { std: "docker" "inspect" "d1178a369bc0b2b5c8d39448d88248417180fafeacb731329aa7c149cb186f9c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d1178a369bc0b2b5c8d39448d88248417180fafeacb731329aa7c149cb186f9c", kill_on_drop: false }`
[INFO] [stdout] d1178a369bc0b2b5c8d39448d88248417180fafeacb731329aa7c149cb186f9c
[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=warn" "-e" "RUSTC_BOOTSTRAP=1" "-e" "DOCS_RS=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" "--all-features" "--frozen" "--message-format=json" "--" "--cfg" "docsrs" "-Z" "unstable-options" "--document-private-items", kill_on_drop: false }`
[INFO] [stdout] 1de9e4a63040ee3d9369d4d3bb2f39da2ba18587f3990e8794fa1032860a03cc
[INFO] running `Command { std: "docker" "start" "-a" "1de9e4a63040ee3d9369d4d3bb2f39da2ba18587f3990e8794fa1032860a03cc", kill_on_drop: false }`
[ERROR] error running command: no output for 300 seconds
[INFO] running `Command { std: "docker" "inspect" "1de9e4a63040ee3d9369d4d3bb2f39da2ba18587f3990e8794fa1032860a03cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1de9e4a63040ee3d9369d4d3bb2f39da2ba18587f3990e8794fa1032860a03cc", kill_on_drop: false }`
[INFO] [stdout] 1de9e4a63040ee3d9369d4d3bb2f39da2ba18587f3990e8794fa1032860a03cc