[INFO] crate scope 0.0.2 is already in cache
[INFO] documenting scope-0.0.2 against master#394e1b40d264aa6928811919c1124fa248e7d802 for pr-73566
[INFO] extracting crate scope 0.0.2 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate scope 0.0.2 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 scope 0.0.2
[INFO] finished tweaking crates.io crate scope 0.0.2
[INFO] tweaked toml for crates.io crate scope 0.0.2 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate crates.io crate scope 0.0.2 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] 23fd08ac72d8ce589925aecfc6b9c3260546b6d88935fefbabaf4ba42010ecfb
[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" "23fd08ac72d8ce589925aecfc6b9c3260546b6d88935fefbabaf4ba42010ecfb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "23fd08ac72d8ce589925aecfc6b9c3260546b6d88935fefbabaf4ba42010ecfb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "23fd08ac72d8ce589925aecfc6b9c3260546b6d88935fefbabaf4ba42010ecfb", kill_on_drop: false }`
[INFO] [stdout] 23fd08ac72d8ce589925aecfc6b9c3260546b6d88935fefbabaf4ba42010ecfb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] 53df6fc5e8328bc8ecefe0325de7415e6f7c41fe9db03d94046f5d8a495a9de3
[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" "53df6fc5e8328bc8ecefe0325de7415e6f7c41fe9db03d94046f5d8a495a9de3", kill_on_drop: false }`
[INFO] [stderr]  Documenting scope v0.0.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.97s
[INFO] running `Command { std: "docker" "inspect" "53df6fc5e8328bc8ecefe0325de7415e6f7c41fe9db03d94046f5d8a495a9de3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "53df6fc5e8328bc8ecefe0325de7415e6f7c41fe9db03d94046f5d8a495a9de3", kill_on_drop: false }`
[INFO] [stdout] 53df6fc5e8328bc8ecefe0325de7415e6f7c41fe9db03d94046f5d8a495a9de3