[INFO] updating cached repository Technius/tokio-chatserver-example
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/Technius/tokio-chatserver-example
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/Technius/tokio-chatserver-example" "work/ex/beta-1.38-1/sources/1.37.0/gh/Technius/tokio-chatserver-example"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/Technius/tokio-chatserver-example'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Technius/tokio-chatserver-example" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Technius/tokio-chatserver-example"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Technius/tokio-chatserver-example'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 3af98e84698fe09821b421e898b89180dc60b608
[INFO] sha for GitHub repo Technius/tokio-chatserver-example: 3af98e84698fe09821b421e898b89180dc60b608
[INFO] validating manifest of Technius/tokio-chatserver-example 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 Technius/tokio-chatserver-example 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 Technius/tokio-chatserver-example
[INFO] finished frobbing Technius/tokio-chatserver-example
[INFO] frobbed toml for Technius/tokio-chatserver-example written to work/ex/beta-1.38-1/sources/1.37.0/gh/Technius/tokio-chatserver-example/Cargo.toml
[INFO] started frobbing Technius/tokio-chatserver-example
[INFO] finished frobbing Technius/tokio-chatserver-example
[INFO] frobbed toml for Technius/tokio-chatserver-example written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Technius/tokio-chatserver-example/Cargo.toml
[INFO] crate Technius/tokio-chatserver-example 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] testing Technius/tokio-chatserver-example against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/Technius/tokio-chatserver-example:/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] 4003e40903d178d4e8bfbf1fd55199d411efe67fec8daf7b338ec88b402f4f02
[INFO] running `"docker" "start" "-a" "4003e40903d178d4e8bfbf1fd55199d411efe67fec8daf7b338ec88b402f4f02"`
[INFO] [stderr]    Compiling iovec v0.1.2
[INFO] [stderr]    Compiling net2 v0.2.33
[INFO] [stderr]    Compiling tokio-threadpool v0.1.14
[INFO] [stderr]    Compiling bytes v0.4.12
[INFO] [stderr]    Compiling mio v0.6.16
[INFO] [stderr]    Compiling tokio-io v0.1.12
[INFO] [stderr]    Compiling mio-uds v0.6.7
[INFO] [stderr]    Compiling tokio-reactor v0.1.9
[INFO] [stderr]    Compiling tokio-codec v0.1.1
[INFO] [stderr]    Compiling tokio-fs v0.1.6
[INFO] [stderr]    Compiling tokio-tcp v0.1.3
[INFO] [stderr]    Compiling tokio-udp v0.1.3
[INFO] [stderr]    Compiling tokio-uds v0.2.5
[INFO] [stderr]    Compiling tokio v0.1.19
[INFO] [stderr]    Compiling tokio-chatserver-example v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `recipient`
[INFO] [stderr]   --> src/main.rs:98:38
[INFO] [stderr]    |
[INFO] [stderr] 98 |                         if let Some((recipient, recip_sender)) = sender_opt {
[INFO] [stderr]    |                                      ^^^^^^^^^ help: consider prefixing with an underscore: `_recipient`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 17.77s
[INFO] running `"docker" "inspect" "4003e40903d178d4e8bfbf1fd55199d411efe67fec8daf7b338ec88b402f4f02"`
[INFO] running `"docker" "rm" "-f" "4003e40903d178d4e8bfbf1fd55199d411efe67fec8daf7b338ec88b402f4f02"`
[INFO] [stdout] 4003e40903d178d4e8bfbf1fd55199d411efe67fec8daf7b338ec88b402f4f02
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/Technius/tokio-chatserver-example:/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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 0764d67ef968fa27940b334dba3ff0099863a77d462d8c63bca425924db392a3
[INFO] running `"docker" "start" "-a" "0764d67ef968fa27940b334dba3ff0099863a77d462d8c63bca425924db392a3"`
[INFO] [stderr]    Compiling tokio-chatserver-example v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `recipient`
[INFO] [stderr]   --> src/main.rs:98:38
[INFO] [stderr]    |
[INFO] [stderr] 98 |                         if let Some((recipient, recip_sender)) = sender_opt {
[INFO] [stderr]    |                                      ^^^^^^^^^ help: consider prefixing with an underscore: `_recipient`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.80s
[INFO] running `"docker" "inspect" "0764d67ef968fa27940b334dba3ff0099863a77d462d8c63bca425924db392a3"`
[INFO] running `"docker" "rm" "-f" "0764d67ef968fa27940b334dba3ff0099863a77d462d8c63bca425924db392a3"`
[INFO] [stdout] 0764d67ef968fa27940b334dba3ff0099863a77d462d8c63bca425924db392a3
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/Technius/tokio-chatserver-example:/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" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] bae74e0e961531d87b1c4db9c128d60a26f167c4a37b0b9d5f714cf0742d0ee2
[INFO] running `"docker" "start" "-a" "bae74e0e961531d87b1c4db9c128d60a26f167c4a37b0b9d5f714cf0742d0ee2"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.22s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/tokio_chatserver_example-3db5f4491ad80f16
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test commands_parse ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "bae74e0e961531d87b1c4db9c128d60a26f167c4a37b0b9d5f714cf0742d0ee2"`
[INFO] running `"docker" "rm" "-f" "bae74e0e961531d87b1c4db9c128d60a26f167c4a37b0b9d5f714cf0742d0ee2"`
[INFO] [stdout] bae74e0e961531d87b1c4db9c128d60a26f167c4a37b0b9d5f714cf0742d0ee2