[INFO] fetching crate lv2-core 2.0.0...
[INFO] documenting lv2-core-2.0.0 against master#394e1b40d264aa6928811919c1124fa248e7d802 for pr-73566
[INFO] extracting crate lv2-core 2.0.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate lv2-core 2.0.0 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 lv2-core 2.0.0
[INFO] finished tweaking crates.io crate lv2-core 2.0.0
[INFO] tweaked toml for crates.io crate lv2-core 2.0.0 written to /workspace/builds/worker-2/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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] 625bb20385a0f80ab457ce779937b9c6511fdf6a8d0de42c2efbb50c3d1079a3
[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" "625bb20385a0f80ab457ce779937b9c6511fdf6a8d0de42c2efbb50c3d1079a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "625bb20385a0f80ab457ce779937b9c6511fdf6a8d0de42c2efbb50c3d1079a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "625bb20385a0f80ab457ce779937b9c6511fdf6a8d0de42c2efbb50c3d1079a3", kill_on_drop: false }`
[INFO] [stdout] 625bb20385a0f80ab457ce779937b9c6511fdf6a8d0de42c2efbb50c3d1079a3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] b3e5e4442bd5cb9341d0f7de9276af1b86e3dd10e22d88fd8bbc2731a25ff5ca
[INFO] running `Command { std: "docker" "start" "-a" "b3e5e4442bd5cb9341d0f7de9276af1b86e3dd10e22d88fd8bbc2731a25ff5ca", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling proc-macro2 v1.0.18
[INFO] [stderr]    Compiling libc v0.2.71
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling cc v1.0.56
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]    Compiling regex-syntax v0.6.18
[INFO] [stderr]    Compiling glob v0.3.0
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling unicode-width v0.1.8
[INFO] [stderr]    Compiling quick-error v1.2.3
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling bindgen v0.53.3
[INFO] [stderr]    Compiling termcolor v1.1.0
[INFO] [stderr]    Compiling ansi_term v0.11.0
[INFO] [stderr]    Compiling syn v1.0.33
[INFO] [stderr]    Compiling vec_map v0.8.2
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling shlex v0.1.1
[INFO] [stderr]    Compiling rustc-hash v1.1.0
[INFO] [stderr]    Compiling peeking_take_while v0.1.2
[INFO] [stderr]    Compiling lazycell v1.2.1
[INFO] [stderr]    Compiling thread_local v1.0.1
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling humantime v1.3.0
[INFO] [stderr]    Compiling nom v5.1.2
[INFO] [stderr]    Compiling aho-corasick v0.7.13
[INFO] [stderr]    Compiling clang-sys v0.29.3
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling which v3.1.1
[INFO] [stderr]    Compiling clap v2.33.1
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling libloading v0.5.2
[INFO] [stderr]    Compiling regex v1.3.9
[INFO] [stderr]    Compiling cexpr v0.4.0
[INFO] [stderr]    Compiling env_logger v0.7.1
[INFO] [stderr]    Compiling urid-derive v0.1.0
[INFO] [stderr]    Compiling lv2-core-derive v2.0.0
[INFO] [stderr]     Checking urid v0.1.0
[INFO] [stderr]    Compiling lv2-sys v1.1.0
[INFO] [stderr]  Documenting lv2-core v2.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 09s
[INFO] running `Command { std: "docker" "inspect" "b3e5e4442bd5cb9341d0f7de9276af1b86e3dd10e22d88fd8bbc2731a25ff5ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b3e5e4442bd5cb9341d0f7de9276af1b86e3dd10e22d88fd8bbc2731a25ff5ca", kill_on_drop: false }`
[INFO] [stdout] b3e5e4442bd5cb9341d0f7de9276af1b86e3dd10e22d88fd8bbc2731a25ff5ca