[INFO] crate syn-impersonated 0.1.18 is already in cache
[INFO] documenting syn-impersonated-0.1.18 against try#66dfc4e010913fbed0c4ea91fc2c010004b0f441 for pr-73566
[INFO] extracting crate syn-impersonated 0.1.18 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate syn-impersonated 0.1.18 on toolchain 66dfc4e010913fbed0c4ea91fc2c010004b0f441
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate syn-impersonated 0.1.18
[INFO] finished tweaking crates.io crate syn-impersonated 0.1.18
[INFO] tweaked toml for crates.io crate syn-impersonated 0.1.18 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "fetch" "--locked" "--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-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ff3d6e83f6dcb4e0cd6319450e65f0d20478f6eb059464a663a4c3174085e072
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "ff3d6e83f6dcb4e0cd6319450e65f0d20478f6eb059464a663a4c3174085e072", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ff3d6e83f6dcb4e0cd6319450e65f0d20478f6eb059464a663a4c3174085e072", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ff3d6e83f6dcb4e0cd6319450e65f0d20478f6eb059464a663a4c3174085e072", kill_on_drop: false }`
[INFO] [stdout] ff3d6e83f6dcb4e0cd6319450e65f0d20478f6eb059464a663a4c3174085e072
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-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" "--network" "none" "rustops/crates-build-env@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 000fa753815fff0fc169591b89fd8f1fd78de205bec1cbf7de87bb917b6b3fbe
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "000fa753815fff0fc169591b89fd8f1fd78de205bec1cbf7de87bb917b6b3fbe", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn-impersonated v0.1.18 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking proc-macro2-impersonated v0.1.1
[INFO] [stderr]     Checking quote-impersonated v0.1.0
[INFO] [stderr]  Documenting syn-impersonated v0.1.18 (/opt/rustwide/workdir)
[INFO] [stdout] warning: `[Block::parse_within]` cannot be resolved, ignoring it.
[INFO] [stdout]   --> src/parse_quote.rs:62:20
[INFO] [stdout]    |
[INFO] [stdout] 62 | /// [`Vec<Stmt>`]: Block::parse_within
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^^^^^^ cannot be resolved, ignoring
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(intra_doc_link_resolution_failure)]` on by default
[INFO] [stdout]    = help: to escape `[` and `]` characters, just 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 4.98s
[INFO] running `Command { std: "docker" "inspect" "000fa753815fff0fc169591b89fd8f1fd78de205bec1cbf7de87bb917b6b3fbe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "000fa753815fff0fc169591b89fd8f1fd78de205bec1cbf7de87bb917b6b3fbe", kill_on_drop: false }`
[INFO] [stdout] 000fa753815fff0fc169591b89fd8f1fd78de205bec1cbf7de87bb917b6b3fbe