[INFO] cloning repository https://github.com/vi/stunserv
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/vi/stunserv" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvi%2Fstunserv", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvi%2Fstunserv'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2da0387213e3176fa769f50f3d4b31bf5f0f3a11
[INFO] checking vi/stunserv against try#b0d0ea232bdae12fa8da8491a91ae1db029990ef for pr-84037
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvi%2Fstunserv" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/vi/stunserv on toolchain b0d0ea232bdae12fa8da8491a91ae1db029990ef
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b0d0ea232bdae12fa8da8491a91ae1db029990ef" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/vi/stunserv
[INFO] finished tweaking git repo https://github.com/vi/stunserv
[INFO] tweaked toml for git repo https://github.com/vi/stunserv written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/vi/stunserv already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b0d0ea232bdae12fa8da8491a91ae1db029990ef" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded stun_codec v0.1.12
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+b0d0ea232bdae12fa8da8491a91ae1db029990ef" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e7ca6ff087ce6b1fa7f5d8fdde1a0e90cb21fd96f1a0b7f9fe09279bdf70e69b
[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" "e7ca6ff087ce6b1fa7f5d8fdde1a0e90cb21fd96f1a0b7f9fe09279bdf70e69b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e7ca6ff087ce6b1fa7f5d8fdde1a0e90cb21fd96f1a0b7f9fe09279bdf70e69b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e7ca6ff087ce6b1fa7f5d8fdde1a0e90cb21fd96f1a0b7f9fe09279bdf70e69b", kill_on_drop: false }`
[INFO] [stdout] e7ca6ff087ce6b1fa7f5d8fdde1a0e90cb21fd96f1a0b7f9fe09279bdf70e69b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+b0d0ea232bdae12fa8da8491a91ae1db029990ef" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d13b61909c380f03d90f347b927c26c31a499e83884bef37e19b572ba535ce9f
[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" "d13b61909c380f03d90f347b927c26c31a499e83884bef37e19b572ba535ce9f", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v0.15.30
[INFO] [stderr]    Compiling cc v1.0.34
[INFO] [stderr]     Checking sha1 v0.2.0
[INFO] [stderr]     Checking md5 v0.6.1
[INFO] [stderr]    Compiling backtrace v0.3.15
[INFO] [stderr]     Checking hmac-sha1 v0.1.3
[INFO] [stderr]    Compiling backtrace-sys v0.1.28
[INFO] [stderr]    Compiling synstructure v0.10.1
[INFO] [stderr]    Compiling trackable_derive v0.1.2
[INFO] [stderr]    Compiling structopt-derive v0.2.15
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]     Checking trackable v0.2.21
[INFO] [stderr]     Checking failure v0.1.5
[INFO] [stderr]     Checking bytecodec v0.4.11
[INFO] [stderr]     Checking structopt v0.2.15
[INFO] [stderr]     Checking stun_codec v0.1.12
[INFO] [stderr]     Checking stunserv v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 14.76s
[INFO] running `Command { std: "docker" "inspect" "d13b61909c380f03d90f347b927c26c31a499e83884bef37e19b572ba535ce9f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d13b61909c380f03d90f347b927c26c31a499e83884bef37e19b572ba535ce9f", kill_on_drop: false }`
[INFO] [stdout] d13b61909c380f03d90f347b927c26c31a499e83884bef37e19b572ba535ce9f