[INFO] fetching crate hole-punch-connect 0.1.0...
[INFO] checking hole-punch-connect-0.1.0 against try#6024cfef3a82f9a7688f07054f1650081bad3af5 for pr-74130
[INFO] extracting crate hole-punch-connect 0.1.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate hole-punch-connect 0.1.0 on toolchain 6024cfef3a82f9a7688f07054f1650081bad3af5
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6024cfef3a82f9a7688f07054f1650081bad3af5" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate hole-punch-connect 0.1.0
[INFO] finished tweaking crates.io crate hole-punch-connect 0.1.0
[INFO] tweaked toml for crates.io crate hole-punch-connect 0.1.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate crates.io crate hole-punch-connect 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6024cfef3a82f9a7688f07054f1650081bad3af5" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+6024cfef3a82f9a7688f07054f1650081bad3af5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e958658dd6267645e791ad7b56fba7173aa06a15ee1b06db2969b40f673fc38c
[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" "e958658dd6267645e791ad7b56fba7173aa06a15ee1b06db2969b40f673fc38c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e958658dd6267645e791ad7b56fba7173aa06a15ee1b06db2969b40f673fc38c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e958658dd6267645e791ad7b56fba7173aa06a15ee1b06db2969b40f673fc38c", kill_on_drop: false }`
[INFO] [stdout] e958658dd6267645e791ad7b56fba7173aa06a15ee1b06db2969b40f673fc38c
[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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+6024cfef3a82f9a7688f07054f1650081bad3af5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 556f2ddbe23d5731cae50d787ab4c423c75392fc268b922cd346c216db19465c
[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" "556f2ddbe23d5731cae50d787ab4c423c75392fc268b922cd346c216db19465c", kill_on_drop: false }`
[INFO] [stderr]     Checking hole-punch-connect v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.53s
[INFO] running `Command { std: "docker" "inspect" "556f2ddbe23d5731cae50d787ab4c423c75392fc268b922cd346c216db19465c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "556f2ddbe23d5731cae50d787ab4c423c75392fc268b922cd346c216db19465c", kill_on_drop: false }`
[INFO] [stdout] 556f2ddbe23d5731cae50d787ab4c423c75392fc268b922cd346c216db19465c