[INFO] crate incrust 0.2.15 is already in cache
[INFO] documenting incrust-0.2.15 against try#66dfc4e010913fbed0c4ea91fc2c010004b0f441 for pr-73566
[INFO] extracting crate incrust 0.2.15 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate incrust 0.2.15 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 incrust 0.2.15
[INFO] finished tweaking crates.io crate incrust 0.2.15
[INFO] tweaked toml for crates.io crate incrust 0.2.15 written to /workspace/builds/worker-7/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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] 8b5eea754007945a02e3159031e5500ebdef03841d8b9a7ef5271e14676f592b
[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" "8b5eea754007945a02e3159031e5500ebdef03841d8b9a7ef5271e14676f592b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8b5eea754007945a02e3159031e5500ebdef03841d8b9a7ef5271e14676f592b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8b5eea754007945a02e3159031e5500ebdef03841d8b9a7ef5271e14676f592b", kill_on_drop: false }`
[INFO] [stdout] 8b5eea754007945a02e3159031e5500ebdef03841d8b9a7ef5271e14676f592b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] cd931322f66c3be4ac628eaa6528c57635b320ff9ee3a88d7dbfdd5fc2d215c7
[INFO] running `Command { std: "docker" "start" "-a" "cd931322f66c3be4ac628eaa6528c57635b320ff9ee3a88d7dbfdd5fc2d215c7", kill_on_drop: false }`
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]     Checking nom v2.2.1
[INFO] [stderr]     Checking marksman_escape v0.1.2
[INFO] [stderr]     Checking maplit v0.1.6
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]  Documenting incrust v0.2.15 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the feature `specialization` is incomplete and may not be safe to use and/or cause compiler crashes
[INFO] [stdout]   --> src/lib.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | #![feature(specialization)]
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(incomplete_features)]` on by default
[INFO] [stdout]    = note: see issue #31844 <https://github.com/rust-lang/rust/issues/31844> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/parser/statements.rs:57:89
[INFO] [stdout]    |
[INFO] [stdout] 57 |     fn finish(begin: ExprStatement, inner: ParsedNodes, end: SimpleStatement) -> Option<(ParsedForStatement)> {
[INFO] [stdout]    |                                                                                         ^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.71s
[INFO] running `Command { std: "docker" "inspect" "cd931322f66c3be4ac628eaa6528c57635b320ff9ee3a88d7dbfdd5fc2d215c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cd931322f66c3be4ac628eaa6528c57635b320ff9ee3a88d7dbfdd5fc2d215c7", kill_on_drop: false }`
[INFO] [stdout] cd931322f66c3be4ac628eaa6528c57635b320ff9ee3a88d7dbfdd5fc2d215c7