[INFO] fetching crate proc-macro2-next 1.0.0-rc4...
[INFO] building proc-macro2-next-1.0.0-rc4 against master#d5c88c22807925c189328ef9d923c5d2b11a95b8 for pr-87066-3
[INFO] extracting crate proc-macro2-next 1.0.0-rc4 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate proc-macro2-next 1.0.0-rc4 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 proc-macro2-next 1.0.0-rc4
[INFO] finished tweaking crates.io crate proc-macro2-next 1.0.0-rc4
[INFO] tweaked toml for crates.io crate proc-macro2-next 1.0.0-rc4 written to /workspace/builds/worker-10/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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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] 68854e561c62e9c18c1d6197c445a53e32c88be4c7a8185a8bbb3920e5f4c11f
[INFO] running `Command { std: "docker" "start" "-a" "68854e561c62e9c18c1d6197c445a53e32c88be4c7a8185a8bbb3920e5f4c11f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "68854e561c62e9c18c1d6197c445a53e32c88be4c7a8185a8bbb3920e5f4c11f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "68854e561c62e9c18c1d6197c445a53e32c88be4c7a8185a8bbb3920e5f4c11f", kill_on_drop: false }`
[INFO] [stdout] 68854e561c62e9c18c1d6197c445a53e32c88be4c7a8185a8bbb3920e5f4c11f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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] f44063681d3ce9540aba7924c4e456ea7620f290ef494616ec29b8937b30b198
[INFO] running `Command { std: "docker" "start" "-a" "f44063681d3ce9540aba7924c4e456ea7620f290ef494616ec29b8937b30b198", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2-next v1.0.0-rc4 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.89s
[INFO] running `Command { std: "docker" "inspect" "f44063681d3ce9540aba7924c4e456ea7620f290ef494616ec29b8937b30b198", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f44063681d3ce9540aba7924c4e456ea7620f290ef494616ec29b8937b30b198", kill_on_drop: false }`
[INFO] [stdout] f44063681d3ce9540aba7924c4e456ea7620f290ef494616ec29b8937b30b198
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1800cdc7efc4ee4fc6ada7ded4240b9de869c7cf8f57b70cdf3cd41df63bc01d
[INFO] running `Command { std: "docker" "start" "-a" "1800cdc7efc4ee4fc6ada7ded4240b9de869c7cf8f57b70cdf3cd41df63bc01d", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2-next v1.0.0-rc4
[INFO] [stderr]    Compiling quote-next v1.0.0-rc3
[INFO] [stderr]    Compiling proc-macro2-next v1.0.0-rc4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 3.81s
[INFO] running `Command { std: "docker" "inspect" "1800cdc7efc4ee4fc6ada7ded4240b9de869c7cf8f57b70cdf3cd41df63bc01d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1800cdc7efc4ee4fc6ada7ded4240b9de869c7cf8f57b70cdf3cd41df63bc01d", kill_on_drop: false }`
[INFO] [stdout] 1800cdc7efc4ee4fc6ada7ded4240b9de869c7cf8f57b70cdf3cd41df63bc01d