[INFO] updating cached repository AlexeyErzyamkin/game-servers
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/AlexeyErzyamkin/game-servers
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/AlexeyErzyamkin/game-servers" "work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/gh/AlexeyErzyamkin/game-servers"`
[INFO] [stderr] Cloning into 'work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/gh/AlexeyErzyamkin/game-servers'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/AlexeyErzyamkin/game-servers" "work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/gh/AlexeyErzyamkin/game-servers"`
[INFO] [stderr] Cloning into 'work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/gh/AlexeyErzyamkin/game-servers'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 6b4329394bbcd460e4c4ddbc806fddbee11fac9b
[INFO] sha for GitHub repo AlexeyErzyamkin/game-servers: 6b4329394bbcd460e4c4ddbc806fddbee11fac9b
[INFO] validating manifest of AlexeyErzyamkin/game-servers on toolchain master#452087b4bf18cece2d52d7cd8c9147195e5404bf
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+452087b4bf18cece2d52d7cd8c9147195e5404bf-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of AlexeyErzyamkin/game-servers on toolchain try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+757dacae0a9f1b46b3ab58a1f1232332e8fc7dab-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing AlexeyErzyamkin/game-servers
[INFO] finished frobbing AlexeyErzyamkin/game-servers
[INFO] frobbed toml for AlexeyErzyamkin/game-servers written to work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/gh/AlexeyErzyamkin/game-servers/Cargo.toml
[INFO] started frobbing AlexeyErzyamkin/game-servers
[INFO] finished frobbing AlexeyErzyamkin/game-servers
[INFO] frobbed toml for AlexeyErzyamkin/game-servers written to work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/gh/AlexeyErzyamkin/game-servers/Cargo.toml
[INFO] crate AlexeyErzyamkin/game-servers already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+452087b4bf18cece2d52d7cd8c9147195e5404bf-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+757dacae0a9f1b46b3ab58a1f1232332e8fc7dab-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking AlexeyErzyamkin/game-servers against try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab for pr-63247
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63247/worker-2/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/gh/AlexeyErzyamkin/game-servers:/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" "+757dacae0a9f1b46b3ab58a1f1232332e8fc7dab-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] dc459f6c4d572b3df1fad333036eb29fb7f57b503d8d1ef047b77f8a36b97628
[INFO] running `"docker" "start" "-a" "dc459f6c4d572b3df1fad333036eb29fb7f57b503d8d1ef047b77f8a36b97628"`
[INFO] [stderr]     Checking game-servers v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std::option::Option`
[INFO] [stderr]  --> src/echo/connection.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::option::Option;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `ErrorKind`, `Error`
[INFO] [stderr]  --> src/echo/connection.rs:3:28
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::io::{Read, Write, Error, ErrorKind};
[INFO] [stderr]   |                            ^^^^^  ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.46s
[INFO] running `"docker" "inspect" "dc459f6c4d572b3df1fad333036eb29fb7f57b503d8d1ef047b77f8a36b97628"`
[INFO] running `"docker" "rm" "-f" "dc459f6c4d572b3df1fad333036eb29fb7f57b503d8d1ef047b77f8a36b97628"`
[INFO] [stdout] dc459f6c4d572b3df1fad333036eb29fb7f57b503d8d1ef047b77f8a36b97628