[INFO] fetching crate gecs 0.3.0...
[INFO] building gecs-0.3.0 against master#d59f06fc64844ec2073e5e888f7470989ef25ff9 for pr-119440
[INFO] extracting crate gecs 0.3.0 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate gecs 0.3.0 on toolchain d59f06fc64844ec2073e5e888f7470989ef25ff9
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d59f06fc64844ec2073e5e888f7470989ef25ff9" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate gecs 0.3.0
[INFO] finished tweaking crates.io crate gecs 0.3.0
[INFO] tweaked toml for crates.io crate gecs 0.3.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d59f06fc64844ec2073e5e888f7470989ef25ff9" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d59f06fc64844ec2073e5e888f7470989ef25ff9" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded speedy v0.8.6
[INFO] [stderr]   Downloaded gecs_macros v0.3.0
[INFO] [stderr]   Downloaded speedy-derive v0.8.6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+d59f06fc64844ec2073e5e888f7470989ef25ff9" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 862ab0df5455f4f39bce4a3729f34799f5c82576a4cbb67d25408f8427e54b1a
[INFO] running `Command { std: "docker" "start" "-a" "862ab0df5455f4f39bce4a3729f34799f5c82576a4cbb67d25408f8427e54b1a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "862ab0df5455f4f39bce4a3729f34799f5c82576a4cbb67d25408f8427e54b1a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "862ab0df5455f4f39bce4a3729f34799f5c82576a4cbb67d25408f8427e54b1a", kill_on_drop: false }`
[INFO] [stdout] 862ab0df5455f4f39bce4a3729f34799f5c82576a4cbb67d25408f8427e54b1a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+d59f06fc64844ec2073e5e888f7470989ef25ff9" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a772cbd300da2d74c55ecad9545d122a43231f38569b55c2989747ee560b759c
[INFO] running `Command { std: "docker" "start" "-a" "a772cbd300da2d74c55ecad9545d122a43231f38569b55c2989747ee560b759c", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-segmentation v1.10.1
[INFO] [stderr]    Compiling base64 v0.21.5
[INFO] [stderr]    Compiling xxhash-rust v0.8.8
[INFO] [stderr]    Compiling seq-macro v0.3.5
[INFO] [stderr]    Compiling memoffset v0.8.0
[INFO] [stderr]    Compiling syn v2.0.43
[INFO] [stderr]    Compiling convert_case v0.6.0
[INFO] [stderr]    Compiling speedy-derive v0.8.6
[INFO] [stderr]    Compiling speedy v0.8.6
[INFO] [stderr]    Compiling gecs_macros v0.3.0
[INFO] [stderr]    Compiling gecs v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.71s
[INFO] running `Command { std: "docker" "inspect" "a772cbd300da2d74c55ecad9545d122a43231f38569b55c2989747ee560b759c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a772cbd300da2d74c55ecad9545d122a43231f38569b55c2989747ee560b759c", kill_on_drop: false }`
[INFO] [stdout] a772cbd300da2d74c55ecad9545d122a43231f38569b55c2989747ee560b759c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+d59f06fc64844ec2073e5e888f7470989ef25ff9" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6809a6bac25ad698df199eab8a6ccc4065d53fec8e98e20210710abea929b963
[INFO] running `Command { std: "docker" "start" "-a" "6809a6bac25ad698df199eab8a6ccc4065d53fec8e98e20210710abea929b963", kill_on_drop: false }`
[INFO] [stderr]    Compiling gecs v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 8.78s
[INFO] running `Command { std: "docker" "inspect" "6809a6bac25ad698df199eab8a6ccc4065d53fec8e98e20210710abea929b963", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6809a6bac25ad698df199eab8a6ccc4065d53fec8e98e20210710abea929b963", kill_on_drop: false }`
[INFO] [stdout] 6809a6bac25ad698df199eab8a6ccc4065d53fec8e98e20210710abea929b963
[ERROR] this task or one of its parent failed!
[ERROR] error sending request for url (https://crater.rust-lang.org/agent-api/record-progress): connection closed before message completed
[ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace.