[INFO] updating cached repository https://github.com/linyinfeng/syn-flood
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] [stderr] From https://github.com/linyinfeng/syn-flood
[INFO] [stderr]  - [deleted]             (none)     -> dependabot/cargo/pnet-0.25.0
[INFO] [stderr]    9644768a1..851527ba7  gh-pages   -> gh-pages
[INFO] [stderr]    6ed1617e3..3d7fe0f4c  master     -> master
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 3d7fe0f4c026bfb1362d4b34e6099a7573162d46
[INFO] checking linyinfeng/syn-flood against try#d27c6c6a469a28343396a8f3ac1c9d403aabda69 for pr-66037
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flinyinfeng%2Fsyn-flood" "/workspace/builds/worker-5/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/linyinfeng/syn-flood on toolchain d27c6c6a469a28343396a8f3ac1c9d403aabda69
[INFO] running `"/workspace/cargo-home/bin/cargo" "+d27c6c6a469a28343396a8f3ac1c9d403aabda69" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/linyinfeng/syn-flood
[INFO] finished tweaking git repo https://github.com/linyinfeng/syn-flood
[INFO] tweaked toml for git repo https://github.com/linyinfeng/syn-flood written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/linyinfeng/syn-flood already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+d27c6c6a469a28343396a8f3ac1c9d403aabda69" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "/opt/rustwide/cargo-home/bin/cargo" "+d27c6c6a469a28343396a8f3ac1c9d403aabda69" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 9b3066b18850b6c00d4fde0cf0c9f2639ef8cf1a1da8312dd9c35a9cdefacb2a
[INFO] running `"docker" "start" "-a" "9b3066b18850b6c00d4fde0cf0c9f2639ef8cf1a1da8312dd9c35a9cdefacb2a"`
[INFO] [stderr]    Compiling pnet v0.25.0
[INFO] [stderr]    Compiling log v0.4.10
[INFO] [stderr]     Checking pnet_sys v0.25.0
[INFO] [stderr]    Compiling syn v1.0.5
[INFO] [stderr]     Checking ipnetwork v0.15.0
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]    Compiling log v0.3.9
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking pnet_datalink v0.25.0
[INFO] [stderr]    Compiling syntex_errors v0.42.0
[INFO] [stderr]    Compiling syntex_syntax v0.42.0
[INFO] [stderr]    Compiling syn-mid v0.4.0
[INFO] [stderr]    Compiling rustversion v1.0.0
[INFO] [stderr]    Compiling proc-macro-error v0.4.4
[INFO] [stderr]    Compiling proc-macro-error-attr v0.4.3
[INFO] [stderr]    Compiling structopt-derive v0.4.0
[INFO] [stderr]    Compiling syntex v0.42.2
[INFO] [stderr]    Compiling pnet_macros v0.21.0
[INFO] [stderr]     Checking structopt v0.3.7
[INFO] [stderr]    Compiling pnet_packet v0.25.0
[INFO] [stderr]     Checking pnet_transport v0.25.0
[INFO] [stderr]     Checking syn-flood v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 45s
[INFO] running `"docker" "inspect" "9b3066b18850b6c00d4fde0cf0c9f2639ef8cf1a1da8312dd9c35a9cdefacb2a"`
[INFO] running `"docker" "rm" "-f" "9b3066b18850b6c00d4fde0cf0c9f2639ef8cf1a1da8312dd9c35a9cdefacb2a"`
[INFO] [stdout] 9b3066b18850b6c00d4fde0cf0c9f2639ef8cf1a1da8312dd9c35a9cdefacb2a