[INFO] cloning repository https://github.com/jkilpatr/pinger-descriptor-exhaustion
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jkilpatr/pinger-descriptor-exhaustion" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjkilpatr%2Fpinger-descriptor-exhaustion", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjkilpatr%2Fpinger-descriptor-exhaustion'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2471896b75e218dda8b1628ab0d53000ceb3d03b
[INFO] checking jkilpatr/pinger-descriptor-exhaustion against try#6f8a6450478f69b8510c8976ab6c2a70b3b0e47c for pr-84920
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjkilpatr%2Fpinger-descriptor-exhaustion" "/workspace/builds/worker-12/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jkilpatr/pinger-descriptor-exhaustion on toolchain 6f8a6450478f69b8510c8976ab6c2a70b3b0e47c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jkilpatr/pinger-descriptor-exhaustion
[INFO] finished tweaking git repo https://github.com/jkilpatr/pinger-descriptor-exhaustion
[INFO] tweaked toml for git repo https://github.com/jkilpatr/pinger-descriptor-exhaustion written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/jkilpatr/pinger-descriptor-exhaustion already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded pnet_sys v0.25.0
[INFO] [stderr]   Downloaded pnet_sys v0.23.1
[INFO] [stderr]   Downloaded pnet v0.23.1
[INFO] [stderr]   Downloaded pnet_packet v0.23.1
[INFO] [stderr]   Downloaded pnet_datalink v0.23.1
[INFO] [stderr]   Downloaded pnet_macros v0.25.0
[INFO] [stderr]   Downloaded pnet_transport v0.23.1
[INFO] [stderr]   Downloaded pnet_macros_support v0.23.1
[INFO] [stderr]   Downloaded fastping-rs v0.1.5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a89e86054a720abf74e9e06cd4c35bf1e914e1180eeac0cf1c9c8e62693c965b
[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" "a89e86054a720abf74e9e06cd4c35bf1e914e1180eeac0cf1c9c8e62693c965b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a89e86054a720abf74e9e06cd4c35bf1e914e1180eeac0cf1c9c8e62693c965b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a89e86054a720abf74e9e06cd4c35bf1e914e1180eeac0cf1c9c8e62693c965b", kill_on_drop: false }`
[INFO] [stdout] a89e86054a720abf74e9e06cd4c35bf1e914e1180eeac0cf1c9c8e62693c965b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "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] 14e38fb4abd2016de77c5ffb781ac223f8d036dc69d4429b6624ec44d2688dc4
[INFO] running `Command { std: "docker" "start" "-a" "14e38fb4abd2016de77c5ffb781ac223f8d036dc69d4429b6624ec44d2688dc4", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling regex v1.0.6
[INFO] [stderr]    Compiling bitflags v0.5.0
[INFO] [stderr]    Compiling utf8-ranges v1.0.4
[INFO] [stderr]    Compiling regex-syntax v0.6.17
[INFO] [stderr]     Checking pnet_base v0.22.0
[INFO] [stderr]    Compiling serde v1.0.106
[INFO] [stderr]    Compiling glob v0.2.11
[INFO] [stderr]    Compiling pnet v0.23.1
[INFO] [stderr]    Compiling syntex_pos v0.42.0
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]     Checking getrandom v0.1.14
[INFO] [stderr]     Checking pnet_sys v0.25.0
[INFO] [stderr]     Checking pnet_sys v0.23.1
[INFO] [stderr]    Compiling log v0.3.9
[INFO] [stderr]     Checking pnet_macros_support v0.23.1
[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 aho-corasick v0.6.10
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]    Compiling syntex_syntax v0.42.0
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking ipnetwork v0.15.1
[INFO] [stderr]     Checking pnet_datalink v0.23.1
[INFO] [stderr]    Compiling syntex v0.42.2
[INFO] [stderr]    Compiling pnet_macros v0.25.0
[INFO] [stderr]    Compiling pnet_packet v0.23.1
[INFO] [stderr]     Checking pnet_transport v0.23.1
[INFO] [stderr]     Checking fastping-rs v0.1.5
[INFO] [stderr]     Checking pinger-descriptor-exhaustion v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 19s
[INFO] running `Command { std: "docker" "inspect" "14e38fb4abd2016de77c5ffb781ac223f8d036dc69d4429b6624ec44d2688dc4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "14e38fb4abd2016de77c5ffb781ac223f8d036dc69d4429b6624ec44d2688dc4", kill_on_drop: false }`
[INFO] [stdout] 14e38fb4abd2016de77c5ffb781ac223f8d036dc69d4429b6624ec44d2688dc4