[INFO] fetching crate pkg6repo 0.0.1-placeholder...
[INFO] documenting pkg6repo-0.0.1-placeholder against try#66dfc4e010913fbed0c4ea91fc2c010004b0f441 for pr-73566
[INFO] extracting crate pkg6repo 0.0.1-placeholder into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate pkg6repo 0.0.1-placeholder on toolchain 66dfc4e010913fbed0c4ea91fc2c010004b0f441
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate pkg6repo 0.0.1-placeholder
[INFO] finished tweaking crates.io crate pkg6repo 0.0.1-placeholder
[INFO] tweaked toml for crates.io crate pkg6repo 0.0.1-placeholder written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate crates.io crate pkg6repo 0.0.1-placeholder already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "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" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "metadata" "--no-deps" "--format-version=1", 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] 8d903b3453da679463ca4c419af70ef8e4d4ca89fa5620d8f799643559359121
[INFO] running `Command { std: "docker" "start" "-a" "8d903b3453da679463ca4c419af70ef8e4d4ca89fa5620d8f799643559359121", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8d903b3453da679463ca4c419af70ef8e4d4ca89fa5620d8f799643559359121", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8d903b3453da679463ca4c419af70ef8e4d4ca89fa5620d8f799643559359121", kill_on_drop: false }`
[INFO] [stdout] 8d903b3453da679463ca4c419af70ef8e4d4ca89fa5620d8f799643559359121
[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" "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" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a469790d87ebd8e687d2f1a62e0b9e83004005cee836c47dcd6aa57811992804
[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" "a469790d87ebd8e687d2f1a62e0b9e83004005cee836c47dcd6aa57811992804", kill_on_drop: false }`
[INFO] [stderr]  Documenting pkg6repo v0.0.1-placeholder (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.45s
[INFO] running `Command { std: "docker" "inspect" "a469790d87ebd8e687d2f1a62e0b9e83004005cee836c47dcd6aa57811992804", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a469790d87ebd8e687d2f1a62e0b9e83004005cee836c47dcd6aa57811992804", kill_on_drop: false }`
[INFO] [stdout] a469790d87ebd8e687d2f1a62e0b9e83004005cee836c47dcd6aa57811992804