[INFO] fetching crate failure_derive 0.1.8...
[INFO] documenting failure_derive-0.1.8 against try#66dfc4e010913fbed0c4ea91fc2c010004b0f441 for pr-73566
[INFO] extracting crate failure_derive 0.1.8 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate failure_derive 0.1.8 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 failure_derive 0.1.8
[INFO] finished tweaking crates.io crate failure_derive 0.1.8
[INFO] tweaked toml for crates.io crate failure_derive 0.1.8 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[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-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] [stdout] 6bcd0c70db8515826e12b25e3b673077882ad0817c44e99bd6858f8d47bde879
[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" "6bcd0c70db8515826e12b25e3b673077882ad0817c44e99bd6858f8d47bde879", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6bcd0c70db8515826e12b25e3b673077882ad0817c44e99bd6858f8d47bde879", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6bcd0c70db8515826e12b25e3b673077882ad0817c44e99bd6858f8d47bde879", kill_on_drop: false }`
[INFO] [stdout] 6bcd0c70db8515826e12b25e3b673077882ad0817c44e99bd6858f8d47bde879
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] 06751ab0eb50cd44e1853d03cfa6def5ae4c161ea3fe446e62fec6e0052bff7b
[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" "06751ab0eb50cd44e1853d03cfa6def5ae4c161ea3fe446e62fec6e0052bff7b", kill_on_drop: false }`
[INFO] [stderr]    Compiling failure_derive v0.1.8 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking syn v1.0.33
[INFO] [stderr]     Checking synstructure v0.12.4
[INFO] [stderr]  Documenting failure_derive v0.1.8 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.57s
[INFO] running `Command { std: "docker" "inspect" "06751ab0eb50cd44e1853d03cfa6def5ae4c161ea3fe446e62fec6e0052bff7b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "06751ab0eb50cd44e1853d03cfa6def5ae4c161ea3fe446e62fec6e0052bff7b", kill_on_drop: false }`
[INFO] [stdout] 06751ab0eb50cd44e1853d03cfa6def5ae4c161ea3fe446e62fec6e0052bff7b