[INFO] crate mockiato 0.9.5 is already in cache
[INFO] documenting mockiato-0.9.5 against master#394e1b40d264aa6928811919c1124fa248e7d802 for pr-73566
[INFO] extracting crate mockiato 0.9.5 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate mockiato 0.9.5 on toolchain 394e1b40d264aa6928811919c1124fa248e7d802
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mockiato 0.9.5
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate mockiato 0.9.5
[INFO] tweaked toml for crates.io crate mockiato 0.9.5 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate crates.io crate mockiato 0.9.5 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "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" "+394e1b40d264aa6928811919c1124fa248e7d802" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5287e1b5e4d2ce266e8bb8cf8c7395fdf18596df8b9559246f06f2b30b6182ad
[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" "5287e1b5e4d2ce266e8bb8cf8c7395fdf18596df8b9559246f06f2b30b6182ad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5287e1b5e4d2ce266e8bb8cf8c7395fdf18596df8b9559246f06f2b30b6182ad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5287e1b5e4d2ce266e8bb8cf8c7395fdf18596df8b9559246f06f2b30b6182ad", kill_on_drop: false }`
[INFO] [stdout] 5287e1b5e4d2ce266e8bb8cf8c7395fdf18596df8b9559246f06f2b30b6182ad
[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" "+394e1b40d264aa6928811919c1124fa248e7d802" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 347137361f7e5b87fcba398dcc5894e77465333eb5a6f14a18a29ac08936beda
[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" "347137361f7e5b87fcba398dcc5894e77465333eb5a6f14a18a29ac08936beda", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.4
[INFO] [stderr]    Compiling syn v1.0.5
[INFO] [stderr]     Checking nearly_eq v0.2.4
[INFO] [stderr]     Checking nameof v1.1.0
[INFO] [stderr]    Compiling mockiato-codegen v0.9.5
[INFO] [stderr]    Compiling mockiato v0.9.5 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]  Documenting mockiato v0.9.5 (/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:110:62
[INFO] [stdout]     |
[INFO] [stdout] 110 | #![cfg_attr(rustc_is_nightly, feature(doc_cfg, external_doc, 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: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 29.69s
[INFO] running `Command { std: "docker" "inspect" "347137361f7e5b87fcba398dcc5894e77465333eb5a6f14a18a29ac08936beda", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "347137361f7e5b87fcba398dcc5894e77465333eb5a6f14a18a29ac08936beda", kill_on_drop: false }`
[INFO] [stdout] 347137361f7e5b87fcba398dcc5894e77465333eb5a6f14a18a29ac08936beda