[INFO] updating cached repository markfknight/websocket-chat-server
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/markfknight/websocket-chat-server
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/markfknight/websocket-chat-server" "work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/markfknight/websocket-chat-server"`
[INFO] [stderr] Cloning into 'work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/markfknight/websocket-chat-server'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/markfknight/websocket-chat-server" "work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/markfknight/websocket-chat-server"`
[INFO] [stderr] Cloning into 'work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/markfknight/websocket-chat-server'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 8d1c374f61bf05d22d33811d2d5d1844e03f52d0
[INFO] sha for GitHub repo markfknight/websocket-chat-server: 8d1c374f61bf05d22d33811d2d5d1844e03f52d0
[INFO] validating manifest of markfknight/websocket-chat-server on toolchain master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of markfknight/websocket-chat-server on toolchain try#7fea0229842e79db1159ea58ad9a653b288efee9
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing markfknight/websocket-chat-server
[INFO] finished frobbing markfknight/websocket-chat-server
[INFO] frobbed toml for markfknight/websocket-chat-server written to work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/markfknight/websocket-chat-server/Cargo.toml
[INFO] started frobbing markfknight/websocket-chat-server
[INFO] finished frobbing markfknight/websocket-chat-server
[INFO] frobbed toml for markfknight/websocket-chat-server written to work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/markfknight/websocket-chat-server/Cargo.toml
[INFO] crate markfknight/websocket-chat-server has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing markfknight/websocket-chat-server against try#7fea0229842e79db1159ea58ad9a653b288efee9 for pr-57967
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-0/try#7fea0229842e79db1159ea58ad9a653b288efee9:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/markfknight/websocket-chat-server:/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=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" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "build" "--frozen"`
[INFO] [stdout] cf22af7afaff6bbbd46ac6e6f73e680c4a8cc31fcd7be5026c8062986761850d
[INFO] running `"docker" "start" "-a" "cf22af7afaff6bbbd46ac6e6f73e680c4a8cc31fcd7be5026c8062986761850d"`
[INFO] [stderr]    Compiling iovec v0.1.0
[INFO] [stderr]    Compiling net2 v0.2.27
[INFO] [stderr]    Compiling mio v0.6.6
[INFO] [stderr]    Compiling websocket-chat-server v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `event`
[INFO] [stderr]   --> src/main.rs:26:13
[INFO] [stderr]    |
[INFO] [stderr] 26 |         for event in events.iter() {
[INFO] [stderr]    |             ^^^^^ help: consider prefixing with an underscore: `_event`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.33s
[INFO] running `"docker" "inspect" "cf22af7afaff6bbbd46ac6e6f73e680c4a8cc31fcd7be5026c8062986761850d"`
[INFO] running `"docker" "rm" "-f" "cf22af7afaff6bbbd46ac6e6f73e680c4a8cc31fcd7be5026c8062986761850d"`
[INFO] [stdout] cf22af7afaff6bbbd46ac6e6f73e680c4a8cc31fcd7be5026c8062986761850d
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-0/try#7fea0229842e79db1159ea58ad9a653b288efee9:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/markfknight/websocket-chat-server:/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=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" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "test" "--frozen" "--no-run"`
[INFO] [stdout] d809e15c8d6cad0b6c0defb0e5f60792204d3f4739391bbb6118504fe4e4e49f
[INFO] running `"docker" "start" "-a" "d809e15c8d6cad0b6c0defb0e5f60792204d3f4739391bbb6118504fe4e4e49f"`
[INFO] [stderr]    Compiling websocket-chat-server v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `event`
[INFO] [stderr]   --> src/main.rs:26:13
[INFO] [stderr]    |
[INFO] [stderr] 26 |         for event in events.iter() {
[INFO] [stderr]    |             ^^^^^ help: consider prefixing with an underscore: `_event`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.41s
[INFO] running `"docker" "inspect" "d809e15c8d6cad0b6c0defb0e5f60792204d3f4739391bbb6118504fe4e4e49f"`
[INFO] running `"docker" "rm" "-f" "d809e15c8d6cad0b6c0defb0e5f60792204d3f4739391bbb6118504fe4e4e49f"`
[INFO] [stdout] d809e15c8d6cad0b6c0defb0e5f60792204d3f4739391bbb6118504fe4e4e49f
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-0/try#7fea0229842e79db1159ea58ad9a653b288efee9:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/markfknight/websocket-chat-server:/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=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" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "test" "--frozen"`
[INFO] [stdout] cce3152739b685caca75651fb93a570b781ba04acb1f142388a54f847f79bdae
[INFO] running `"docker" "start" "-a" "cce3152739b685caca75651fb93a570b781ba04acb1f142388a54f847f79bdae"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/websocket_chat_server-ec95e1da9da19c5b
[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" "cce3152739b685caca75651fb93a570b781ba04acb1f142388a54f847f79bdae"`
[INFO] running `"docker" "rm" "-f" "cce3152739b685caca75651fb93a570b781ba04acb1f142388a54f847f79bdae"`
[INFO] [stdout] cce3152739b685caca75651fb93a570b781ba04acb1f142388a54f847f79bdae