[INFO] fetching crate partial 0.4.0...
[INFO] building partial-0.4.0 against master#d5c88c22807925c189328ef9d923c5d2b11a95b8 for pr-87066-3
[INFO] extracting crate partial 0.4.0 into /workspace/builds/worker-30/source
[INFO] validating manifest of crates.io crate partial 0.4.0 on toolchain d5c88c22807925c189328ef9d923c5d2b11a95b8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d5c88c22807925c189328ef9d923c5d2b11a95b8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate partial 0.4.0
[INFO] finished tweaking crates.io crate partial 0.4.0
[INFO] tweaked toml for crates.io crate partial 0.4.0 written to /workspace/builds/worker-30/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d5c88c22807925c189328ef9d923c5d2b11a95b8" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d5c88c22807925c189328ef9d923c5d2b11a95b8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-30/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-30/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+d5c88c22807925c189328ef9d923c5d2b11a95b8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5100f96f5f37c1ebc01d64f7186d519dcdc43c74680ff40ddea7fc017b09666b
[INFO] running `Command { std: "docker" "start" "-a" "5100f96f5f37c1ebc01d64f7186d519dcdc43c74680ff40ddea7fc017b09666b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5100f96f5f37c1ebc01d64f7186d519dcdc43c74680ff40ddea7fc017b09666b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5100f96f5f37c1ebc01d64f7186d519dcdc43c74680ff40ddea7fc017b09666b", kill_on_drop: false }`
[INFO] [stdout] 5100f96f5f37c1ebc01d64f7186d519dcdc43c74680ff40ddea7fc017b09666b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-30/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-30/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" "RUSTFLAGS=--cap-lints=forbid" "-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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+d5c88c22807925c189328ef9d923c5d2b11a95b8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c3cc242d6ff0153bfe7ddd54fc8aad42c2559d90ccddd71697696d7afc00cb30
[INFO] running `Command { std: "docker" "start" "-a" "c3cc242d6ff0153bfe7ddd54fc8aad42c2559d90ccddd71697696d7afc00cb30", kill_on_drop: false }`
[INFO] [stderr] error: failed to create jobserver
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to increase jobserver pipe capacity from 4096 to 8192; jobserver otherwise might deadlock
[INFO] running `Command { std: "docker" "inspect" "c3cc242d6ff0153bfe7ddd54fc8aad42c2559d90ccddd71697696d7afc00cb30", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c3cc242d6ff0153bfe7ddd54fc8aad42c2559d90ccddd71697696d7afc00cb30", kill_on_drop: false }`
[INFO] [stdout] c3cc242d6ff0153bfe7ddd54fc8aad42c2559d90ccddd71697696d7afc00cb30