[INFO] fetching crate up-rs 0.4.0...
[INFO] documenting up-rs-0.4.0 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate up-rs 0.4.0 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate up-rs 0.4.0 on toolchain beta-2020-08-29
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate up-rs 0.4.0
[INFO] finished tweaking crates.io crate up-rs 0.4.0
[INFO] tweaked toml for crates.io crate up-rs 0.4.0 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate crates.io crate up-rs 0.4.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "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" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-08-29" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 86cdbb20bf8f355dedde29d08fd1070737c6d1bd1530ef83f3cffa79805e186f
[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" "86cdbb20bf8f355dedde29d08fd1070737c6d1bd1530ef83f3cffa79805e186f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "86cdbb20bf8f355dedde29d08fd1070737c6d1bd1530ef83f3cffa79805e186f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "86cdbb20bf8f355dedde29d08fd1070737c6d1bd1530ef83f3cffa79805e186f", kill_on_drop: false }`
[INFO] [stdout] 86cdbb20bf8f355dedde29d08fd1070737c6d1bd1530ef83f3cffa79805e186f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-08-29" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 40a1f0d57ece861e886e62e12c900db3e326860ed2ca369cd41a4f83e83ad2bf
[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" "40a1f0d57ece861e886e62e12c900db3e326860ed2ca369cd41a4f83e83ad2bf", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.18
[INFO] [stderr]    Compiling jobserver v0.1.21
[INFO] [stderr]    Compiling quote v1.0.4
[INFO] [stderr]     Checking dirs-sys v0.3.4
[INFO] [stderr]     Checking slog-scope v4.3.0
[INFO] [stderr]     Checking serde_yaml v0.8.11
[INFO] [stderr]     Checking envy v0.4.1
[INFO] [stderr]     Checking serde_json v1.0.52
[INFO] [stderr]     Checking slog-async v2.5.0
[INFO] [stderr]     Checking crossbeam v0.7.3
[INFO] [stderr]     Checking slog-stdlog v4.0.0
[INFO] [stderr]     Checking dirs v2.0.2
[INFO] [stderr]     Checking term v0.6.1
[INFO] [stderr]     Checking shellexpand v2.0.0
[INFO] [stderr]    Compiling cc v1.0.52
[INFO] [stderr]     Checking slog-term v2.5.0
[INFO] [stderr]    Compiling openssl-src v111.9.0+1.1.1g
[INFO] [stderr]    Compiling libz-sys v1.0.25
[INFO] [stderr]    Compiling openssl-sys v0.9.55
[INFO] [stderr]    Compiling libssh2-sys v0.2.17
[INFO] [stderr]    Compiling libgit2-sys v0.12.5+1.0.0
[INFO] [stderr]    Compiling syn-mid v0.5.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.2
[INFO] [stderr]    Compiling thiserror-impl v1.0.16
[INFO] [stderr]    Compiling displaydoc v0.1.5
[INFO] [stderr]    Compiling serde_derive v1.0.106
[INFO] [stderr]    Compiling proc-macro-error v1.0.2
[INFO] [stderr]    Compiling structopt-derive v0.4.7
[INFO] [stderr]     Checking thiserror v1.0.16
[INFO] [stderr]     Checking structopt v0.3.14
[INFO] [stderr]     Checking git2 v0.13.5
[INFO] [stderr]     Checking up-rs v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]  Documenting up-rs v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 50s
[INFO] running `Command { std: "docker" "inspect" "40a1f0d57ece861e886e62e12c900db3e326860ed2ca369cd41a4f83e83ad2bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "40a1f0d57ece861e886e62e12c900db3e326860ed2ca369cd41a4f83e83ad2bf", kill_on_drop: false }`
[INFO] [stdout] 40a1f0d57ece861e886e62e12c900db3e326860ed2ca369cd41a4f83e83ad2bf