[INFO] updating cached repository https://github.com/mciantyre/ser2tcp
[INFO] running `Command { std: "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", kill_on_drop: false }`
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e270ee663087bef483a9c455aef3b0827038271a
[INFO] checking mciantyre/ser2tcp against try#22dd2dd1dc07f63ae9394352d412f020d2985684 for pr-74627
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmciantyre%2Fser2tcp" "/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/mciantyre/ser2tcp on toolchain 22dd2dd1dc07f63ae9394352d412f020d2985684
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+22dd2dd1dc07f63ae9394352d412f020d2985684" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mciantyre/ser2tcp
[INFO] finished tweaking git repo https://github.com/mciantyre/ser2tcp
[INFO] tweaked toml for git repo https://github.com/mciantyre/ser2tcp written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/mciantyre/ser2tcp already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+22dd2dd1dc07f63ae9394352d412f020d2985684" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+22dd2dd1dc07f63ae9394352d412f020d2985684" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bf35940f2b434550e5a8e82f0f4bf887b10e0284941d282be70c6303c813b981
[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" "bf35940f2b434550e5a8e82f0f4bf887b10e0284941d282be70c6303c813b981", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bf35940f2b434550e5a8e82f0f4bf887b10e0284941d282be70c6303c813b981", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bf35940f2b434550e5a8e82f0f4bf887b10e0284941d282be70c6303c813b981", kill_on_drop: false }`
[INFO] [stdout] bf35940f2b434550e5a8e82f0f4bf887b10e0284941d282be70c6303c813b981
[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" "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@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+22dd2dd1dc07f63ae9394352d412f020d2985684" "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] 342c671a4d7f0561d088d1f364d313bf419714d0c40dc7b39daf37b5d9adee9c
[INFO] running `Command { std: "docker" "start" "-a" "342c671a4d7f0561d088d1f364d313bf419714d0c40dc7b39daf37b5d9adee9c", kill_on_drop: false }`
[INFO] [stderr]     Checking nodrop v0.1.12
[INFO] [stderr]     Checking scopeguard v0.3.3
[INFO] [stderr]     Checking memoffset v0.2.1
[INFO] [stderr]    Compiling nix v0.10.0
[INFO] [stderr]     Checking quick-error v1.2.2
[INFO] [stderr]    Compiling libudev-sys v0.1.4
[INFO] [stderr]     Checking unreachable v1.0.0
[INFO] [stderr]     Checking textwrap v0.9.0
[INFO] [stderr]     Checking arrayvec v0.4.7
[INFO] [stderr]     Checking thread_local v0.3.5
[INFO] [stderr]     Checking humantime v1.1.1
[INFO] [stderr]     Checking clap v2.31.2
[INFO] [stderr]     Checking regex v1.0.0
[INFO] [stderr]     Checking crossbeam-epoch v0.4.3
[INFO] [stderr]     Checking crossbeam-deque v0.3.1
[INFO] [stderr]     Checking libudev v0.2.0
[INFO] [stderr]     Checking tokio-threadpool v0.1.4
[INFO] [stderr]     Checking tokio-fs v0.1.1
[INFO] [stderr]     Checking env_logger v0.5.10
[INFO] [stderr]     Checking tokio v0.1.7
[INFO] [stderr]     Checking serialport v2.3.0
[INFO] [stderr]     Checking mio-serial v0.8.0
[INFO] [stderr]     Checking tokio-serial v0.8.0
[INFO] [stderr]     Checking ser2tcp v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated item 'tokio_io::AsyncRead::framed': Use tokio_codec::Decoder::framed instead
[INFO] [stdout]    --> src/main.rs:182:28
[INFO] [stdout]     |
[INFO] [stdout] 182 |     let (_, reader) = port.framed(LinesCodec::new()).split();
[INFO] [stdout]     |                            ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'tokio_io::AsyncRead::framed': Use tokio_codec::Decoder::framed instead
[INFO] [stdout]    --> src/main.rs:182:28
[INFO] [stdout]     |
[INFO] [stdout] 182 |     let (_, reader) = port.framed(LinesCodec::new()).split();
[INFO] [stdout]     |                            ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 16.64s
[INFO] running `Command { std: "docker" "inspect" "342c671a4d7f0561d088d1f364d313bf419714d0c40dc7b39daf37b5d9adee9c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "342c671a4d7f0561d088d1f364d313bf419714d0c40dc7b39daf37b5d9adee9c", kill_on_drop: false }`
[INFO] [stdout] 342c671a4d7f0561d088d1f364d313bf419714d0c40dc7b39daf37b5d9adee9c