[INFO] fetching crate libreda-db 0.0.4...
[INFO] checking libreda-db-0.0.4 against master#8007b506ac5da629f223b755f5a5391edd5f6d01 for pr-88041
[INFO] extracting crate libreda-db 0.0.4 into /workspace/builds/worker-105/source
[INFO] validating manifest of crates.io crate libreda-db 0.0.4 on toolchain 8007b506ac5da629f223b755f5a5391edd5f6d01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate libreda-db 0.0.4
[INFO] finished tweaking crates.io crate libreda-db 0.0.4
[INFO] tweaked toml for crates.io crate libreda-db 0.0.4 written to /workspace/builds/worker-105/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-105/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-105/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" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9cceb5ace205cd0d35b99da080c6ac9bafc04e7e9d37e4a02761f0580036759e
[INFO] running `Command { std: "docker" "start" "-a" "9cceb5ace205cd0d35b99da080c6ac9bafc04e7e9d37e4a02761f0580036759e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9cceb5ace205cd0d35b99da080c6ac9bafc04e7e9d37e4a02761f0580036759e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9cceb5ace205cd0d35b99da080c6ac9bafc04e7e9d37e4a02761f0580036759e", kill_on_drop: false }`
[INFO] [stdout] 9cceb5ace205cd0d35b99da080c6ac9bafc04e7e9d37e4a02761f0580036759e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-105/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-105/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" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0848fef6571b50f768cd633be0df7a2a12255ef9c7efd9463340baf119f70890
[INFO] running `Command { std: "docker" "start" "-a" "0848fef6571b50f768cd633be0df7a2a12255ef9c7efd9463340baf119f70890", 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" "0848fef6571b50f768cd633be0df7a2a12255ef9c7efd9463340baf119f70890", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0848fef6571b50f768cd633be0df7a2a12255ef9c7efd9463340baf119f70890", kill_on_drop: false }`
[INFO] [stdout] 0848fef6571b50f768cd633be0df7a2a12255ef9c7efd9463340baf119f70890