[INFO] fetching crate stare 0.2.0...
[INFO] documenting stare-0.2.0 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate stare 0.2.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate stare 0.2.0 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 stare 0.2.0
[INFO] finished tweaking crates.io crate stare 0.2.0
[INFO] tweaked toml for crates.io crate stare 0.2.0 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate crates.io crate stare 0.2.0 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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded sysinfo v0.14.5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] 01968e383ce301a38b92ac1fd39061541497544031f581fa066c7c334a68c527
[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" "01968e383ce301a38b92ac1fd39061541497544031f581fa066c7c334a68c527", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "01968e383ce301a38b92ac1fd39061541497544031f581fa066c7c334a68c527", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "01968e383ce301a38b92ac1fd39061541497544031f581fa066c7c334a68c527", kill_on_drop: false }`
[INFO] [stdout] 01968e383ce301a38b92ac1fd39061541497544031f581fa066c7c334a68c527
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] 279fd5d7c398ad64d07ea0d914bbb69b6b7d2f03a40efd32b6f12c11a67993b1
[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" "279fd5d7c398ad64d07ea0d914bbb69b6b7d2f03a40efd32b6f12c11a67993b1", kill_on_drop: false }`
[INFO] [stderr]    Compiling sysinfo v0.14.5
[INFO] [stderr]     Checking rayon-core v1.7.1
[INFO] [stderr]     Checking rayon v1.3.1
[INFO] [stderr]  Documenting stare v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.40s
[INFO] running `Command { std: "docker" "inspect" "279fd5d7c398ad64d07ea0d914bbb69b6b7d2f03a40efd32b6f12c11a67993b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "279fd5d7c398ad64d07ea0d914bbb69b6b7d2f03a40efd32b6f12c11a67993b1", kill_on_drop: false }`
[INFO] [stdout] 279fd5d7c398ad64d07ea0d914bbb69b6b7d2f03a40efd32b6f12c11a67993b1