[INFO] cloning repository https://github.com/mycognosist/mbus_write
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mycognosist/mbus_write" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmycognosist%2Fmbus_write"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmycognosist%2Fmbus_write'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 92f02d493ec15f7fa51cc921feba6d59bfc3545b
[INFO] testing mycognosist/mbus_write against beta-2020-06-03 for beta-1.45-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmycognosist%2Fmbus_write" "/workspace/builds/worker-4/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mycognosist/mbus_write on toolchain beta-2020-06-03
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/mycognosist/mbus_write
[INFO] finished tweaking git repo https://github.com/mycognosist/mbus_write
[INFO] tweaked toml for git repo https://github.com/mycognosist/mbus_write written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/mycognosist/mbus_write already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tokio-serial v0.6.0
[INFO] [stderr]   Downloaded mio-serial v0.6.0
[INFO] [stderr]   Downloaded tokio-modbus v0.2.1
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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=warn" "-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" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-06-03" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 1c13d6f3cb60991306bb92f05d70911d6e1768fce361b2a5d68c42b0f6a2c990
[INFO] running `"docker" "start" "-a" "1c13d6f3cb60991306bb92f05d70911d6e1768fce361b2a5d68c42b0f6a2c990"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling libc v0.2.42
[INFO] [stderr]    Compiling cfg-if v0.1.4
[INFO] [stderr]    Compiling byteorder v1.2.3
[INFO] [stderr]    Compiling futures v0.1.21
[INFO] [stderr]    Compiling slab v0.4.0
[INFO] [stderr]    Compiling lazycell v0.6.0
[INFO] [stderr]    Compiling pkg-config v0.3.11
[INFO] [stderr]    Compiling nodrop v0.1.12
[INFO] [stderr]    Compiling memoffset v0.2.1
[INFO] [stderr]    Compiling lazy_static v1.0.1
[INFO] [stderr]    Compiling scopeguard v0.3.3
[INFO] [stderr]    Compiling nix v0.10.0
[INFO] [stderr]    Compiling bitflags v1.0.3
[INFO] [stderr]    Compiling scoped-tls v0.1.2
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling bitflags v0.9.1
[INFO] [stderr]    Compiling smallvec v0.2.1
[INFO] [stderr]    Compiling slab v0.3.0
[INFO] [stderr]    Compiling take v0.1.0
[INFO] [stderr]    Compiling strsim v0.7.0
[INFO] [stderr]    Compiling vec_map v0.8.1
[INFO] [stderr]    Compiling ansi_term v0.11.0
[INFO] [stderr]    Compiling log v0.4.2
[INFO] [stderr]    Compiling crossbeam-utils v0.3.2
[INFO] [stderr]    Compiling arrayvec v0.4.7
[INFO] [stderr]    Compiling textwrap v0.10.0
[INFO] [stderr]    Compiling log v0.3.9
[INFO] [stderr]    Compiling crossbeam-epoch v0.4.3
[INFO] [stderr]    Compiling libudev-sys v0.1.4
[INFO] [stderr]    Compiling iovec v0.1.2
[INFO] [stderr]    Compiling net2 v0.2.33
[INFO] [stderr]    Compiling rand v0.4.2
[INFO] [stderr]    Compiling num_cpus v1.8.0
[INFO] [stderr]    Compiling ioctl-rs v0.1.6
[INFO] [stderr]    Compiling termios v0.2.2
[INFO] [stderr]    Compiling atty v0.2.10
[INFO] [stderr]    Compiling crossbeam-deque v0.3.1
[INFO] [stderr]    Compiling clap v2.32.0
[INFO] [stderr]    Compiling bytes v0.4.8
[INFO] [stderr]    Compiling libudev v0.2.0
[INFO] [stderr]    Compiling mio v0.6.14
[INFO] [stderr]    Compiling serialport v1.0.1
[INFO] [stderr]    Compiling rand v0.3.22
[INFO] [stderr]    Compiling mio-serial v0.6.0
[INFO] [stderr]    Compiling tokio-executor v0.1.2
[INFO] [stderr]    Compiling tokio-io v0.1.7
[INFO] [stderr]    Compiling tokio-service v0.1.0
[INFO] [stderr]    Compiling tokio-threadpool v0.1.4
[INFO] [stderr]    Compiling tokio-timer v0.2.4
[INFO] [stderr]    Compiling tokio-reactor v0.1.2
[INFO] [stderr]    Compiling tokio-codec v0.1.0
[INFO] [stderr]    Compiling tokio-fs v0.1.1
[INFO] [stderr]    Compiling tokio-tcp v0.1.0
[INFO] [stderr]    Compiling tokio-udp v0.1.1
[INFO] [stderr]    Compiling tokio v0.1.7
[INFO] [stderr]    Compiling tokio-core v0.1.17
[INFO] [stderr]    Compiling tokio-serial v0.6.0
[INFO] [stderr]    Compiling tokio-proto v0.1.1
[INFO] [stderr]    Compiling serialport v2.3.0
[INFO] [stderr]    Compiling mio-serial v0.8.0
[INFO] [stderr]    Compiling tokio-serial v0.8.0
[INFO] [stderr]    Compiling tokio-modbus v0.2.1
[INFO] [stderr]    Compiling mbus_write v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]   --> src/main.rs:76:36
[INFO] [stderr]    |
[INFO] [stderr] 76 |     let task = Client::connect_rtu(port, modbus_addr, &handle).and_then(|client| {
[INFO] [stderr]    |                                    ^^^^ expected struct `tokio_serial::unix::Serial`, found struct `tokio_serial::Serial`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0308`.
[INFO] [stderr] error: could not compile `mbus_write`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "1c13d6f3cb60991306bb92f05d70911d6e1768fce361b2a5d68c42b0f6a2c990"`
[INFO] running `"docker" "rm" "-f" "1c13d6f3cb60991306bb92f05d70911d6e1768fce361b2a5d68c42b0f6a2c990"`
[INFO] [stdout] 1c13d6f3cb60991306bb92f05d70911d6e1768fce361b2a5d68c42b0f6a2c990