[INFO] fetching crate join 0.3.0...
[INFO] documenting join-0.3.0 against 1.54.0 for beta-1.55-rustdoc-1
[INFO] extracting crate join 0.3.0 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate join 0.3.0 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 crates.io crate join 0.3.0
[INFO] finished tweaking crates.io crate join 0.3.0
[INFO] tweaked toml for crates.io crate join 0.3.0 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded futures-timer v0.4.0
[INFO] [stderr]   Downloaded join_impl v0.3.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] f8e3749a928294b269bf89889bb9872a0fafb7a07b5656581ad21d8c388897f3
[INFO] running `Command { std: "docker" "start" "-a" "f8e3749a928294b269bf89889bb9872a0fafb7a07b5656581ad21d8c388897f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f8e3749a928294b269bf89889bb9872a0fafb7a07b5656581ad21d8c388897f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f8e3749a928294b269bf89889bb9872a0fafb7a07b5656581ad21d8c388897f3", kill_on_drop: false }`
[INFO] [stdout] f8e3749a928294b269bf89889bb9872a0fafb7a07b5656581ad21d8c388897f3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] d8d1c2f4448e7feb82a3b856ddf411bc70c5b34cf2672fdb24ba6ad57e0df307
[INFO] running `Command { std: "docker" "start" "-a" "d8d1c2f4448e7feb82a3b856ddf411bc70c5b34cf2672fdb24ba6ad57e0df307", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.28
[INFO] [stderr]     Checking unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.74
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking quote v1.0.9
[INFO] [stderr]     Checking join_impl v0.3.0
[INFO] [stderr]  Documenting join v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unresolved link to `LICENSE`
[INFO] [stdout]   --> src/lib.rs:18:16
[INFO] [stdout]    |
[INFO] [stdout] 18 | //! [mit-url]: LICENSE
[INFO] [stdout]    |                ^^^^^^^ no item named `LICENSE` in scope
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(rustdoc::broken_intra_doc_links)]` on by default
[INFO] [stdout]    = help: to escape `[` and `]` characters, add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.82s
[INFO] running `Command { std: "docker" "inspect" "d8d1c2f4448e7feb82a3b856ddf411bc70c5b34cf2672fdb24ba6ad57e0df307", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d8d1c2f4448e7feb82a3b856ddf411bc70c5b34cf2672fdb24ba6ad57e0df307", kill_on_drop: false }`
[INFO] [stdout] d8d1c2f4448e7feb82a3b856ddf411bc70c5b34cf2672fdb24ba6ad57e0df307
