[INFO] updating cached repository mycognosist/mbus_write
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/mycognosist/mbus_write
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/mycognosist/mbus_write" "work/ex/beta-1.38-1/sources/1.37.0/gh/mycognosist/mbus_write"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/mycognosist/mbus_write'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/mycognosist/mbus_write" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/mycognosist/mbus_write"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/mycognosist/mbus_write'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 92f02d493ec15f7fa51cc921feba6d59bfc3545b
[INFO] sha for GitHub repo mycognosist/mbus_write: 92f02d493ec15f7fa51cc921feba6d59bfc3545b
[INFO] validating manifest of mycognosist/mbus_write on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of mycognosist/mbus_write on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing mycognosist/mbus_write
[INFO] finished frobbing mycognosist/mbus_write
[INFO] frobbed toml for mycognosist/mbus_write written to work/ex/beta-1.38-1/sources/1.37.0/gh/mycognosist/mbus_write/Cargo.toml
[INFO] started frobbing mycognosist/mbus_write
[INFO] finished frobbing mycognosist/mbus_write
[INFO] frobbed toml for mycognosist/mbus_write written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/mycognosist/mbus_write/Cargo.toml
[INFO] crate mycognosist/mbus_write already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] testing mycognosist/mbus_write against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/mycognosist/mbus_write:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] 86d54e2c92182b408301cf03fe14adfb19ce4ac3d4736ecedff156e19c9ce56b
[INFO] running `"docker" "start" "-a" "86d54e2c92182b408301cf03fe14adfb19ce4ac3d4736ecedff156e19c9ce56b"`
[INFO] [stderr]    Compiling ioctl-rs v0.1.6
[INFO] [stderr]    Compiling termios v0.2.2
[INFO] [stderr]    Compiling log v0.4.2
[INFO] [stderr]    Compiling libudev-sys v0.1.4
[INFO] [stderr]    Compiling bytes v0.4.8
[INFO] [stderr]    Compiling crossbeam-epoch v0.4.3
[INFO] [stderr]    Compiling tokio-timer v0.2.4
[INFO] [stderr]    Compiling mio v0.6.14
[INFO] [stderr]    Compiling log v0.3.9
[INFO] [stderr]    Compiling crossbeam-deque v0.3.1
[INFO] [stderr]    Compiling libudev v0.2.0
[INFO] [stderr]    Compiling tokio-io v0.1.7
[INFO] [stderr]    Compiling nix v0.10.0
[INFO] [stderr]    Compiling tokio-threadpool v0.1.4
[INFO] [stderr]    Compiling serialport v1.0.1
[INFO] [stderr]    Compiling mio-serial v0.6.0
[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-proto v0.1.1
[INFO] [stderr]    Compiling tokio-serial v0.6.0
[INFO] [stderr]    Compiling serialport v2.3.0
[INFO] [stderr]    Compiling mio-serial v0.8.0
[INFO] [stderr]    Compiling tokio-modbus v0.2.1
[INFO] [stderr]    Compiling tokio-serial v0.8.0
[INFO] [stderr]    Compiling mbus_write v0.1.0 (/opt/crater/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]    = note: expected type `tokio_serial::unix::Serial`
[INFO] [stderr]               found type `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" "86d54e2c92182b408301cf03fe14adfb19ce4ac3d4736ecedff156e19c9ce56b"`
[INFO] running `"docker" "rm" "-f" "86d54e2c92182b408301cf03fe14adfb19ce4ac3d4736ecedff156e19c9ce56b"`
[INFO] [stdout] 86d54e2c92182b408301cf03fe14adfb19ce4ac3d4736ecedff156e19c9ce56b