[INFO] cloning repository https://github.com/linyinfeng/syn-flood
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/linyinfeng/syn-flood" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flinyinfeng%2Fsyn-flood", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flinyinfeng%2Fsyn-flood'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 82cb22672db1a70c9508eeab881f03ca9704ec7f
[INFO] testing linyinfeng/syn-flood against try#ce59db7a1b1b012fb2793c4641c1bdecad7a128b for pr-85530
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flinyinfeng%2Fsyn-flood" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/linyinfeng/syn-flood on toolchain ce59db7a1b1b012fb2793c4641c1bdecad7a128b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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-6/source/Cargo.toml
[INFO] crate git repo https://github.com/linyinfeng/syn-flood already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ipnetwork v0.18.0
[INFO] [stderr]   Downloaded pnet_macros v0.28.0
[INFO] [stderr]   Downloaded pnet_macros_support v0.28.0
[INFO] [stderr]   Downloaded pnet_base v0.28.0
[INFO] [stderr]   Downloaded pnet_packet v0.28.0
[INFO] [stderr]   Downloaded pnet_datalink v0.28.0
[INFO] [stderr]   Downloaded pnet_sys v0.28.0
[INFO] [stderr]   Downloaded pnet_transport v0.28.0
[INFO] [stderr]   Downloaded pnet v0.28.0
[INFO] [stderr]   Downloaded quick-error v2.0.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 12c012fee40f41e921bc149bc381aaf510c6e01ebb6f1835733f66913f18627a
[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" "12c012fee40f41e921bc149bc381aaf510c6e01ebb6f1835733f66913f18627a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "12c012fee40f41e921bc149bc381aaf510c6e01ebb6f1835733f66913f18627a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "12c012fee40f41e921bc149bc381aaf510c6e01ebb6f1835733f66913f18627a", kill_on_drop: false }`
[INFO] [stdout] 12c012fee40f41e921bc149bc381aaf510c6e01ebb6f1835733f66913f18627a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 20cf27d637b6de9f740965b8ec6e629d50acca635e1ce5a011cd5a0f9281e10f
[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" "20cf27d637b6de9f740965b8ec6e629d50acca635e1ce5a011cd5a0f9281e10f", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.94
[INFO] [stderr]    Compiling proc-macro2 v1.0.26
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling getrandom v0.2.2
[INFO] [stderr]    Compiling pnet_base v0.28.0
[INFO] [stderr]    Compiling ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling pnet v0.28.0
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling ipnetwork v0.18.0
[INFO] [stderr]    Compiling pnet_macros_support v0.28.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling pnet_sys v0.28.0
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]    Compiling rand_core v0.6.2
[INFO] [stderr]    Compiling pnet_datalink v0.28.0
[INFO] [stderr]    Compiling rand_chacha v0.3.0
[INFO] [stderr]    Compiling env_logger v0.8.3
[INFO] [stderr]    Compiling rand v0.8.3
[INFO] [stderr]    Compiling pnet_macros v0.28.0
[INFO] [stderr]    Compiling structopt-derive v0.4.14
[INFO] [stderr]    Compiling structopt v0.3.21
[INFO] [stderr]    Compiling pnet_packet v0.28.0
[INFO] [stderr]    Compiling pnet_transport v0.28.0
[INFO] [stderr]    Compiling syn-flood v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 39.81s
[INFO] running `Command { std: "docker" "inspect" "20cf27d637b6de9f740965b8ec6e629d50acca635e1ce5a011cd5a0f9281e10f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "20cf27d637b6de9f740965b8ec6e629d50acca635e1ce5a011cd5a0f9281e10f", kill_on_drop: false }`
[INFO] [stdout] 20cf27d637b6de9f740965b8ec6e629d50acca635e1ce5a011cd5a0f9281e10f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "test" "--frozen" "--no-run" "--message-format=json", 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] a65829ee3fef2c5a4be1542b4bb181a3f6ef830488566ae564cc80694aad85a2
[INFO] running `Command { std: "docker" "start" "-a" "a65829ee3fef2c5a4be1542b4bb181a3f6ef830488566ae564cc80694aad85a2", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn-flood v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.60s
[INFO] running `Command { std: "docker" "inspect" "a65829ee3fef2c5a4be1542b4bb181a3f6ef830488566ae564cc80694aad85a2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a65829ee3fef2c5a4be1542b4bb181a3f6ef830488566ae564cc80694aad85a2", kill_on_drop: false }`
[INFO] [stdout] a65829ee3fef2c5a4be1542b4bb181a3f6ef830488566ae564cc80694aad85a2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] dd6872583fb753ad3833e65ed5bcc91f1064007132b4823055164cc5f82bea9e
[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" "dd6872583fb753ad3833e65ed5bcc91f1064007132b4823055164cc5f82bea9e", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/syn_flood-8ac170f6c7678189)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "dd6872583fb753ad3833e65ed5bcc91f1064007132b4823055164cc5f82bea9e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dd6872583fb753ad3833e65ed5bcc91f1064007132b4823055164cc5f82bea9e", kill_on_drop: false }`
[INFO] [stdout] dd6872583fb753ad3833e65ed5bcc91f1064007132b4823055164cc5f82bea9e