[INFO] updating cached repository lambdabear/mqtt-demo2
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/lambdabear/mqtt-demo2
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/lambdabear/mqtt-demo2" "work/ex/beta-1.37-6/sources/1.36.0/gh/lambdabear/mqtt-demo2"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/lambdabear/mqtt-demo2'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/lambdabear/mqtt-demo2" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/lambdabear/mqtt-demo2"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/lambdabear/mqtt-demo2'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 967a9e48ae8b52eea2faca64d598beef4bb0f010
[INFO] sha for GitHub repo lambdabear/mqtt-demo2: 967a9e48ae8b52eea2faca64d598beef4bb0f010
[INFO] validating manifest of lambdabear/mqtt-demo2 on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of lambdabear/mqtt-demo2 on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing lambdabear/mqtt-demo2
[INFO] finished frobbing lambdabear/mqtt-demo2
[INFO] frobbed toml for lambdabear/mqtt-demo2 written to work/ex/beta-1.37-6/sources/1.36.0/gh/lambdabear/mqtt-demo2/Cargo.toml
[INFO] started frobbing lambdabear/mqtt-demo2
[INFO] finished frobbing lambdabear/mqtt-demo2
[INFO] frobbed toml for lambdabear/mqtt-demo2 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/lambdabear/mqtt-demo2/Cargo.toml
[INFO] crate lambdabear/mqtt-demo2 already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing lambdabear/mqtt-demo2 against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-7/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/lambdabear/mqtt-demo2:/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-2019-07-23" "build" "--frozen"`
[INFO] [stdout] 5827b4736ffc424c1b88fc3836195b3795288fcada60dd625d43f89be481ae49
[INFO] running `"docker" "start" "-a" "5827b4736ffc424c1b88fc3836195b3795288fcada60dd625d43f89be481ae49"`
[INFO] [stderr]    Compiling syn v0.15.29
[INFO] [stderr]    Compiling ring v0.13.5
[INFO] [stderr]    Compiling backtrace-sys v0.1.28
[INFO] [stderr]    Compiling mio v0.6.16
[INFO] [stderr]    Compiling tokio-io v0.1.12
[INFO] [stderr]    Compiling uuid v0.7.2
[INFO] [stderr]    Compiling tokio-threadpool v0.1.12
[INFO] [stderr]    Compiling env_logger v0.5.13
[INFO] [stderr]    Compiling tokio-codec v0.1.1
[INFO] [stderr]    Compiling backtrace v0.3.14
[INFO] [stderr]    Compiling pretty_env_logger v0.2.5
[INFO] [stderr]    Compiling tokio-fs v0.1.6
[INFO] [stderr]    Compiling mio-uds v0.6.7
[INFO] [stderr]    Compiling tokio-reactor v0.1.9
[INFO] [stderr]    Compiling tokio-udp v0.1.3
[INFO] [stderr]    Compiling tokio-uds v0.2.5
[INFO] [stderr]    Compiling tokio-tcp v0.1.3
[INFO] [stderr]    Compiling tokio v0.1.17
[INFO] [stderr]    Compiling webpki v0.18.1
[INFO] [stderr]    Compiling sct v0.4.0
[INFO] [stderr]    Compiling synstructure v0.10.1
[INFO] [stderr]    Compiling serde_derive v1.0.89
[INFO] [stderr]    Compiling derive_more v0.13.0
[INFO] [stderr]    Compiling rustls v0.14.0
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]    Compiling failure v0.1.5
[INFO] [stderr]    Compiling mqtt311 v0.2.0
[INFO] [stderr]    Compiling tokio-rustls v0.8.1
[INFO] [stderr]    Compiling jsonwebtoken v5.0.1
[INFO] [stderr]    Compiling rumqtt v0.30.1
[INFO] [stderr]    Compiling mqtt-demo v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused imports: `io::Write`, `io`
[INFO] [stderr]  --> src/main.rs:3:11
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::{io, io::Write, thread, time::Duration};
[INFO] [stderr]   |           ^^  ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `handler`
[INFO] [stderr]   --> src/main.rs:46:9
[INFO] [stderr]    |
[INFO] [stderr] 46 |     let handler = thread::spawn(move || loop {
[INFO] [stderr]    |         ^^^^^^^ help: consider prefixing with an underscore: `_handler`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 20s
[INFO] running `"docker" "inspect" "5827b4736ffc424c1b88fc3836195b3795288fcada60dd625d43f89be481ae49"`
[INFO] running `"docker" "rm" "-f" "5827b4736ffc424c1b88fc3836195b3795288fcada60dd625d43f89be481ae49"`
[INFO] [stdout] 5827b4736ffc424c1b88fc3836195b3795288fcada60dd625d43f89be481ae49
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-7/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/lambdabear/mqtt-demo2:/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-2019-07-23" "test" "--frozen" "--no-run"`
[INFO] [stdout] 609e020e8b61489fce9e379582343859d35bf5f449e9bb0fe1030fe0beac9b2f
[INFO] running `"docker" "start" "-a" "609e020e8b61489fce9e379582343859d35bf5f449e9bb0fe1030fe0beac9b2f"`
[INFO] [stderr]    Compiling mqtt-demo v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused imports: `io::Write`, `io`
[INFO] [stderr]  --> src/main.rs:3:11
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::{io, io::Write, thread, time::Duration};
[INFO] [stderr]   |           ^^  ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `handler`
[INFO] [stderr]   --> src/main.rs:46:9
[INFO] [stderr]    |
[INFO] [stderr] 46 |     let handler = thread::spawn(move || loop {
[INFO] [stderr]    |         ^^^^^^^ help: consider prefixing with an underscore: `_handler`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.92s
[INFO] running `"docker" "inspect" "609e020e8b61489fce9e379582343859d35bf5f449e9bb0fe1030fe0beac9b2f"`
[INFO] running `"docker" "rm" "-f" "609e020e8b61489fce9e379582343859d35bf5f449e9bb0fe1030fe0beac9b2f"`
[INFO] [stdout] 609e020e8b61489fce9e379582343859d35bf5f449e9bb0fe1030fe0beac9b2f
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-7/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/lambdabear/mqtt-demo2:/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-2019-07-23" "test" "--frozen"`
[INFO] [stdout] 3ece6208d68170ae61d0bd985641a8e2e46eb4e768b0780c44b455557a3eb1b4
[INFO] running `"docker" "start" "-a" "3ece6208d68170ae61d0bd985641a8e2e46eb4e768b0780c44b455557a3eb1b4"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/mqtt_demo-93e8479287a1a985
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "3ece6208d68170ae61d0bd985641a8e2e46eb4e768b0780c44b455557a3eb1b4"`
[INFO] running `"docker" "rm" "-f" "3ece6208d68170ae61d0bd985641a8e2e46eb4e768b0780c44b455557a3eb1b4"`
[INFO] [stdout] 3ece6208d68170ae61d0bd985641a8e2e46eb4e768b0780c44b455557a3eb1b4