[INFO] crate rumqtt 0.30.1 is already in cache
[INFO] extracting crate rumqtt 0.30.1 into work/ex/beta-1.37-6/sources/1.36.0/reg/rumqtt/0.30.1
[INFO] extracting crate rumqtt 0.30.1 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/rumqtt/0.30.1
[INFO] validating manifest of rumqtt-0.30.1 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 rumqtt-0.30.1 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 rumqtt-0.30.1
[INFO] finished frobbing rumqtt-0.30.1
[INFO] frobbed toml for rumqtt-0.30.1 written to work/ex/beta-1.37-6/sources/1.36.0/reg/rumqtt/0.30.1/Cargo.toml
[INFO] started frobbing rumqtt-0.30.1
[INFO] finished frobbing rumqtt-0.30.1
[INFO] frobbed toml for rumqtt-0.30.1 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/rumqtt/0.30.1/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[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 rumqtt-0.30.1 against 1.36.0 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/rumqtt/0.30.1:/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" "+1.36.0" "build" "--frozen"`
[INFO] [stdout] cf4773815dfbbf051f4e95012e601e7f10cb1c2754cb9bbe255a61a7358739ba
[INFO] running `"docker" "start" "-a" "cf4773815dfbbf051f4e95012e601e7f10cb1c2754cb9bbe255a61a7358739ba"`
[INFO] [stderr]    Compiling derive_more v0.13.0
[INFO] [stderr]    Compiling rustls v0.14.0
[INFO] [stderr]    Compiling jsonwebtoken v5.0.1
[INFO] [stderr]    Compiling mqtt311 v0.2.0
[INFO] [stderr]    Compiling tokio-rustls v0.8.1
[INFO] [stderr]    Compiling rumqtt v0.30.1 (/opt/crater/workdir)
[INFO] [stderr] warning: the item `chrono` is imported redundantly
[INFO] [stderr]    --> src/client/mqttstate.rs:368:18
[INFO] [stderr]     |
[INFO] [stderr] 368 |     use chrono::{self, Utc};
[INFO] [stderr]     |                  ^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'tokio_io::async_read::AsyncRead::framed': Use tokio_codec::Decoder::framed instead
[INFO] [stderr]    --> src/client/network.rs:148:38
[INFO] [stderr]     |
[INFO] [stderr] 148 |                     let framed = tcp.framed(codec);
[INFO] [stderr]     |                                      ^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(deprecated)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 15.96s
[INFO] running `"docker" "inspect" "cf4773815dfbbf051f4e95012e601e7f10cb1c2754cb9bbe255a61a7358739ba"`
[INFO] running `"docker" "rm" "-f" "cf4773815dfbbf051f4e95012e601e7f10cb1c2754cb9bbe255a61a7358739ba"`
[INFO] [stdout] cf4773815dfbbf051f4e95012e601e7f10cb1c2754cb9bbe255a61a7358739ba
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/rumqtt/0.30.1:/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" "+1.36.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 1c29e76f61d477bf4fed7ffd89ec8f537ce4262223e7b741b8695eed8ccb2258
[INFO] running `"docker" "start" "-a" "1c29e76f61d477bf4fed7ffd89ec8f537ce4262223e7b741b8695eed8ccb2258"`
[INFO] [stderr]    Compiling envy v0.3.3
[INFO] [stderr]    Compiling rumqtt v0.30.1 (/opt/crater/workdir)
[INFO] [stderr] warning: the item `chrono` is imported redundantly
[INFO] [stderr]    --> src/client/mqttstate.rs:368:18
[INFO] [stderr]     |
[INFO] [stderr] 368 |     use chrono::{self, Utc};
[INFO] [stderr]     |                  ^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'tokio_io::async_read::AsyncRead::framed': Use tokio_codec::Decoder::framed instead
[INFO] [stderr]    --> src/client/network.rs:148:38
[INFO] [stderr]     |
[INFO] [stderr] 148 |                     let framed = tcp.framed(codec);
[INFO] [stderr]     |                                      ^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(deprecated)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `MqttClient`, `MqttOptions`
[INFO] [stderr]  --> examples/reconnection.rs:3:14
[INFO] [stderr]   |
[INFO] [stderr] 3 | use rumqtt::{MqttClient, MqttOptions};
[INFO] [stderr]   |              ^^^^^^^^^^  ^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::thread`
[INFO] [stderr]  --> examples/reconnection.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::thread;
[INFO] [stderr]   |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: couldn't read examples/../../certs/rsa_private.der: No such file or directory (os error 2)
[INFO] [stderr]   --> examples/gcloud.rs:27:71
[INFO] [stderr]    |
[INFO] [stderr] 27 |     let security_options = SecurityOptions::GcloudIot(config.project, include_bytes!("../../certs/rsa_private.der").to_vec(), 60);
[INFO] [stderr]    |                                                                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: couldn't read examples/../../certs/roots.pem: No such file or directory (os error 2)
[INFO] [stderr]   --> examples/gcloud.rs:29:14
[INFO] [stderr]    |
[INFO] [stderr] 29 |     let ca = include_bytes!("../../certs/roots.pem").to_vec();
[INFO] [stderr]    |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `rumqtt`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error[E0599]: no method named `disconnect` found for type `rumqtt::client::MqttClient` in the current scope
[INFO] [stderr]   --> examples/disconnection.rs:19:21
[INFO] [stderr]    |
[INFO] [stderr] 19 |         mqtt_client.disconnect().unwrap();
[INFO] [stderr]    |                     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0599`.
[INFO] [stderr] error: Could not compile `rumqtt`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "1c29e76f61d477bf4fed7ffd89ec8f537ce4262223e7b741b8695eed8ccb2258"`
[INFO] running `"docker" "rm" "-f" "1c29e76f61d477bf4fed7ffd89ec8f537ce4262223e7b741b8695eed8ccb2258"`
[INFO] [stdout] 1c29e76f61d477bf4fed7ffd89ec8f537ce4262223e7b741b8695eed8ccb2258