[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] c86c3de9cc781b5b1453598ca0704d0a171ff993
[INFO] checking linyinfeng/syn-flood against try#f47dd4da3ae8c32c9e65d307bfe640b143e674df for pr-77526
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flinyinfeng%2Fsyn-flood" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/linyinfeng/syn-flood on toolchain f47dd4da3ae8c32c9e65d307bfe640b143e674df
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "read-manifest" "--manifest-path" "Cargo.toml", 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-9/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" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded pnet_transport v0.26.0
[INFO] [stderr]   Downloaded quick-error v2.0.0
[INFO] [stderr]   Downloaded pnet v0.26.0
[INFO] [stderr]   Downloaded ipnetwork v0.16.0
[INFO] [stderr]   Downloaded pnet_datalink v0.26.0
[INFO] [stderr]   Downloaded structopt-derive v0.4.12
[INFO] [stderr]   Downloaded pnet_sys v0.26.0
[INFO] [stderr]   Downloaded proc-macro-error-attr v1.0.4
[INFO] [stderr]   Downloaded proc-macro-error v1.0.4
[INFO] [stderr]   Downloaded structopt v0.3.19
[INFO] [stderr]   Downloaded pnet_packet v0.26.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "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] 991b42d8a5cc9e5e009d94645da709dbbde068985b5b7be6fe419f04d4d4a729
[INFO] running `Command { std: "docker" "start" "-a" "991b42d8a5cc9e5e009d94645da709dbbde068985b5b7be6fe419f04d4d4a729", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "991b42d8a5cc9e5e009d94645da709dbbde068985b5b7be6fe419f04d4d4a729", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "991b42d8a5cc9e5e009d94645da709dbbde068985b5b7be6fe419f04d4d4a729", kill_on_drop: false }`
[INFO] [stdout] 991b42d8a5cc9e5e009d94645da709dbbde068985b5b7be6fe419f04d4d4a729
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "check" "--frozen" "--all" "--all-targets" "--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] c5b47c0a049c16c98441f2d6b20e0e69c96d7db5f5c01bc9f0f25952f7233cc8
[INFO] running `Command { std: "docker" "start" "-a" "c5b47c0a049c16c98441f2d6b20e0e69c96d7db5f5c01bc9f0f25952f7233cc8", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling unicode-xid v0.0.3
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling bitflags v0.5.0
[INFO] [stderr]    Compiling regex-syntax v0.6.18
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling serde v1.0.116
[INFO] [stderr]    Compiling syn v1.0.42
[INFO] [stderr]    Compiling glob v0.2.11
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]    Compiling unicode-segmentation v1.6.0
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]    Compiling pnet v0.26.0
[INFO] [stderr]     Checking termcolor v1.1.0
[INFO] [stderr]     Checking quick-error v2.0.0
[INFO] [stderr]    Compiling syntex_pos v0.42.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling thread_local v1.0.1
[INFO] [stderr]    Compiling libc v0.2.79
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking pnet_sys v0.26.0
[INFO] [stderr]     Checking getrandom v0.1.15
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking regex v1.3.9
[INFO] [stderr]    Compiling log v0.3.9
[INFO] [stderr]    Compiling aho-corasick v0.7.13
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]    Compiling syntex_errors v0.42.0
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]    Compiling syntex_syntax v0.42.0
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking ipnetwork v0.16.0
[INFO] [stderr]     Checking pnet_datalink v0.26.0
[INFO] [stderr]    Compiling structopt-derive v0.4.12
[INFO] [stderr]     Checking structopt v0.3.19
[INFO] [stderr]    Compiling syntex v0.42.2
[INFO] [stderr]    Compiling pnet_macros v0.26.0
[INFO] [stderr]    Compiling pnet_packet v0.26.0
[INFO] [stderr]     Checking pnet_transport v0.26.0
[INFO] [stderr]     Checking syn-flood v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 43s
[INFO] running `Command { std: "docker" "inspect" "c5b47c0a049c16c98441f2d6b20e0e69c96d7db5f5c01bc9f0f25952f7233cc8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c5b47c0a049c16c98441f2d6b20e0e69c96d7db5f5c01bc9f0f25952f7233cc8", kill_on_drop: false }`
[INFO] [stdout] c5b47c0a049c16c98441f2d6b20e0e69c96d7db5f5c01bc9f0f25952f7233cc8