[INFO] fetching crate cxx-demo 0.0.4...
[INFO] checking cxx-demo-0.0.4 against try#6f12b8fe67b4eed2e838dab803ed9493b9d62c0f for pr-79073
[INFO] extracting crate cxx-demo 0.0.4 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate cxx-demo 0.0.4 on toolchain 6f12b8fe67b4eed2e838dab803ed9493b9d62c0f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f12b8fe67b4eed2e838dab803ed9493b9d62c0f" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cxx-demo 0.0.4
[INFO] finished tweaking crates.io crate cxx-demo 0.0.4
[INFO] tweaked toml for crates.io crate cxx-demo 0.0.4 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f12b8fe67b4eed2e838dab803ed9493b9d62c0f" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f12b8fe67b4eed2e838dab803ed9493b9d62c0f" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded link-cplusplus v1.0.4
[INFO] [stderr]   Downloaded cxx-build v0.4.7
[INFO] [stderr]   Downloaded cxxbridge-flags v0.4.7
[INFO] [stderr]   Downloaded cxxbridge-macro v0.4.7
[INFO] [stderr]   Downloaded cxx v0.4.7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+6f12b8fe67b4eed2e838dab803ed9493b9d62c0f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 3ecfc5cf813cb2ab41ff7b823e1888fd8d46f92972b670170bf28bb92f528fb3
[INFO] running `Command { std: "docker" "start" "-a" "3ecfc5cf813cb2ab41ff7b823e1888fd8d46f92972b670170bf28bb92f528fb3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3ecfc5cf813cb2ab41ff7b823e1888fd8d46f92972b670170bf28bb92f528fb3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3ecfc5cf813cb2ab41ff7b823e1888fd8d46f92972b670170bf28bb92f528fb3", kill_on_drop: false }`
[INFO] [stdout] 3ecfc5cf813cb2ab41ff7b823e1888fd8d46f92972b670170bf28bb92f528fb3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+6f12b8fe67b4eed2e838dab803ed9493b9d62c0f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c1023ade23934eea8c66e85910f151263041f20be037a6b9fd65b4856a33f944
[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" "c1023ade23934eea8c66e85910f151263041f20be037a6b9fd65b4856a33f944", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling cc v1.0.65
[INFO] [stderr]    Compiling syn v1.0.50
[INFO] [stderr]    Compiling termcolor v1.1.2
[INFO] [stderr]    Compiling cxxbridge-flags v0.4.7
[INFO] [stderr]    Compiling codespan-reporting v0.9.5
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling link-cplusplus v1.0.4
[INFO] [stderr]    Compiling cxx v0.4.7
[INFO] [stderr]    Compiling cxx-build v0.4.7
[INFO] [stderr]    Compiling cxxbridge-macro v0.4.7
[INFO] [stderr]    Compiling cxx-demo v0.0.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 29.15s
[INFO] running `Command { std: "docker" "inspect" "c1023ade23934eea8c66e85910f151263041f20be037a6b9fd65b4856a33f944", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c1023ade23934eea8c66e85910f151263041f20be037a6b9fd65b4856a33f944", kill_on_drop: false }`
[INFO] [stdout] c1023ade23934eea8c66e85910f151263041f20be037a6b9fd65b4856a33f944