[INFO] updating cached repository simmons/tokio-dtls-example
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/simmons/tokio-dtls-example
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/simmons/tokio-dtls-example" "work/ex/pr-60174/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/simmons/tokio-dtls-example"`
[INFO] [stderr] Cloning into 'work/ex/pr-60174/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/simmons/tokio-dtls-example'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/simmons/tokio-dtls-example" "work/ex/pr-60174/sources/try#74092351c05ae61047b2be02024415546595e974/gh/simmons/tokio-dtls-example"`
[INFO] [stderr] Cloning into 'work/ex/pr-60174/sources/try#74092351c05ae61047b2be02024415546595e974/gh/simmons/tokio-dtls-example'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 93c37e6a923857032523f00bad2a0192baa2e483
[INFO] sha for GitHub repo simmons/tokio-dtls-example: 93c37e6a923857032523f00bad2a0192baa2e483
[INFO] validating manifest of simmons/tokio-dtls-example on toolchain master#e305df1846a6d985315917ae0c81b74af8b4e641
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+e305df1846a6d985315917ae0c81b74af8b4e641-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of simmons/tokio-dtls-example on toolchain try#74092351c05ae61047b2be02024415546595e974
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+74092351c05ae61047b2be02024415546595e974-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing simmons/tokio-dtls-example
[INFO] finished frobbing simmons/tokio-dtls-example
[INFO] frobbed toml for simmons/tokio-dtls-example written to work/ex/pr-60174/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/simmons/tokio-dtls-example/Cargo.toml
[INFO] started frobbing simmons/tokio-dtls-example
[INFO] finished frobbing simmons/tokio-dtls-example
[INFO] frobbed toml for simmons/tokio-dtls-example written to work/ex/pr-60174/sources/try#74092351c05ae61047b2be02024415546595e974/gh/simmons/tokio-dtls-example/Cargo.toml
[INFO] crate simmons/tokio-dtls-example already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+e305df1846a6d985315917ae0c81b74af8b4e641-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on the registry index
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+74092351c05ae61047b2be02024415546595e974-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking simmons/tokio-dtls-example against master#e305df1846a6d985315917ae0c81b74af8b4e641 for pr-60174
[INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-60174/worker-2/master#e305df1846a6d985315917ae0c81b74af8b4e641:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-60174/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/simmons/tokio-dtls-example:/opt/crater/workdir:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/crater-raid/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=forbid" "-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" "+e305df1846a6d985315917ae0c81b74af8b4e641-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] be323ea3c43e20f9eae193f89d55fbeb8cdba05e97b12f8d552a1b9ae6e3c3d2
[INFO] running `"docker" "start" "-a" "be323ea3c43e20f9eae193f89d55fbeb8cdba05e97b12f8d552a1b9ae6e3c3d2"`
[INFO] [stderr]    Compiling cc v1.0.22
[INFO] [stderr]    Compiling regex v1.0.3
[INFO] [stderr]     Checking tokio-executor v0.1.4
[INFO] [stderr]     Checking lock_api v0.1.3
[INFO] [stderr]     Checking parking_lot_core v0.2.14
[INFO] [stderr]     Checking tokio-io v0.1.8
[INFO] [stderr]     Checking mio-uds v0.6.6
[INFO] [stderr]     Checking crossbeam-epoch v0.5.2
[INFO] [stderr]     Checking tokio-timer v0.2.6
[INFO] [stderr]     Checking tokio-current-thread v0.1.1
[INFO] [stderr]     Checking parking_lot v0.6.3
[INFO] [stderr]     Checking crossbeam-deque v0.6.1
[INFO] [stderr]     Checking tokio-reactor v0.1.4
[INFO] [stderr]     Checking tokio-codec v0.1.0
[INFO] [stderr]     Checking tokio-threadpool v0.1.6
[INFO] [stderr]     Checking tokio-tcp v0.1.1
[INFO] [stderr]     Checking tokio-uds v0.2.1
[INFO] [stderr]     Checking tokio-udp v0.1.2
[INFO] [stderr]    Compiling openssl-sys v0.9.35
[INFO] [stderr]     Checking tokio-fs v0.1.3
[INFO] [stderr]     Checking env_logger v0.5.12
[INFO] [stderr]    Compiling openssl v0.10.11
[INFO] [stderr]    Compiling native-tls v0.2.1
[INFO] [stderr]     Checking tokio v0.1.8
[INFO] [stderr]     Checking tokio-openssl v0.2.1
[INFO] [stderr]     Checking tokio-tls v0.2.0
[INFO] [stderr]     Checking tokio-dtls-example v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/udp.rs:60:22
[INFO] [stderr]    |
[INFO] [stderr] 60 |                 let (mut incoming_tx, incoming_rx) = mpsc::channel(UDP_STREAM_BUFFER_DATAGRAMS);
[INFO] [stderr]    |                      ----^^^^^^^^^^^
[INFO] [stderr]    |                      |
[INFO] [stderr]    |                      help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/udp.rs:60:22
[INFO] [stderr]    |
[INFO] [stderr] 60 |                 let (mut incoming_tx, incoming_rx) = mpsc::channel(UDP_STREAM_BUFFER_DATAGRAMS);
[INFO] [stderr]    |                      ----^^^^^^^^^^^
[INFO] [stderr]    |                      |
[INFO] [stderr]    |                      help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 15.51s
[INFO] running `"docker" "inspect" "be323ea3c43e20f9eae193f89d55fbeb8cdba05e97b12f8d552a1b9ae6e3c3d2"`
[INFO] running `"docker" "rm" "-f" "be323ea3c43e20f9eae193f89d55fbeb8cdba05e97b12f8d552a1b9ae6e3c3d2"`
[INFO] [stdout] be323ea3c43e20f9eae193f89d55fbeb8cdba05e97b12f8d552a1b9ae6e3c3d2