[INFO] fetching crate build_metadata 0.1.0...
[INFO] documenting build_metadata-0.1.0 against master#394e1b40d264aa6928811919c1124fa248e7d802 for pr-73566
[INFO] extracting crate build_metadata 0.1.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate build_metadata 0.1.0 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 build_metadata 0.1.0
[INFO] finished tweaking crates.io crate build_metadata 0.1.0
[INFO] tweaked toml for crates.io crate build_metadata 0.1.0 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[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-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] 1d9f2c0abf5baff9d1e2faae34fb383fafe8cdc42e726045bc6b88ba5d67ab8f
[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" "1d9f2c0abf5baff9d1e2faae34fb383fafe8cdc42e726045bc6b88ba5d67ab8f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1d9f2c0abf5baff9d1e2faae34fb383fafe8cdc42e726045bc6b88ba5d67ab8f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1d9f2c0abf5baff9d1e2faae34fb383fafe8cdc42e726045bc6b88ba5d67ab8f", kill_on_drop: false }`
[INFO] [stdout] 1d9f2c0abf5baff9d1e2faae34fb383fafe8cdc42e726045bc6b88ba5d67ab8f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] ce556eb70287affef63aae6b1d941940acc13c9081105171896d27e82a9325ac
[INFO] running `Command { std: "docker" "start" "-a" "ce556eb70287affef63aae6b1d941940acc13c9081105171896d27e82a9325ac", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.56
[INFO] [stderr]    Compiling libc v0.2.71
[INFO] [stderr]    Compiling gcc v0.3.55
[INFO] [stderr]     Checking bitflags v0.1.1
[INFO] [stderr]    Compiling openssl-sys v0.7.17
[INFO] [stderr]     Checking url v1.7.2
[INFO] [stderr]    Compiling cmake v0.1.44
[INFO] [stderr]    Compiling libz-sys v1.0.25
[INFO] [stderr]    Compiling libgit2-sys v0.4.6
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking git2 v0.4.4
[INFO] [stderr]  Documenting build_metadata v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0462]: found staticlib `rustc` instead of rlib or dylib
[INFO] [stdout]   --> src/lib.rs:27:1
[INFO] [stdout]    |
[INFO] [stdout] 27 | extern crate rustc;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: please recompile that crate using --crate-type lib
[INFO] [stdout]    = note: the following crate versions were found:
[INFO] [stdout]            crate `rustc`: /opt/rustwide/rustup-home/toolchains/394e1b40d264aa6928811919c1124fa248e7d802/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc-nightly_rt.asan.a
[INFO] [stdout]            crate `rustc`: /opt/rustwide/rustup-home/toolchains/394e1b40d264aa6928811919c1124fa248e7d802/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc-nightly_rt.tsan.a
[INFO] [stdout]            crate `rustc`: /opt/rustwide/rustup-home/toolchains/394e1b40d264aa6928811919c1124fa248e7d802/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc-nightly_rt.msan.a
[INFO] [stdout]            crate `rustc`: /opt/rustwide/rustup-home/toolchains/394e1b40d264aa6928811919c1124fa248e7d802/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc-nightly_rt.lsan.a
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: Could not document `build_metadata`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type dylib --crate-name build_metadata src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern git2=/opt/rustwide/target/debug/deps/libgit2-d524ef2c85302843.rmeta --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-9404408917408c19.rmeta --extern time=/opt/rustwide/target/debug/deps/libtime-e7be7863b5f9349e.rmeta --cap-lints=forbid` (exit code: 1)
[INFO] running `Command { std: "docker" "inspect" "ce556eb70287affef63aae6b1d941940acc13c9081105171896d27e82a9325ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ce556eb70287affef63aae6b1d941940acc13c9081105171896d27e82a9325ac", kill_on_drop: false }`
[INFO] [stdout] ce556eb70287affef63aae6b1d941940acc13c9081105171896d27e82a9325ac