[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-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/gh/AlexeyErzyamkin/game-servers"`
[INFO] [stderr] Cloning into 'work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/gh/AlexeyErzyamkin/game-servers'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/AlexeyErzyamkin/game-servers" "work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/AlexeyErzyamkin/game-servers"`
[INFO] [stderr] Cloning into 'work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/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#0f88167f89fffe321590c5148f21b7d51d44388d
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0f88167f89fffe321590c5148f21b7d51d44388d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of AlexeyErzyamkin/game-servers on toolchain try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-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-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/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-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/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" "+0f88167f89fffe321590c5148f21b7d51d44388d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking AlexeyErzyamkin/game-servers against try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b for pr-58948
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-58948/worker-7/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/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" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 4b9fcfabe864510c9586a2d6074c97635125fcdd067b4f0af836e34d39f9c0bf
[INFO] running `"docker" "start" "-a" "4b9fcfabe864510c9586a2d6074c97635125fcdd067b4f0af836e34d39f9c0bf"`
[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 0.80s
[INFO] running `"docker" "inspect" "4b9fcfabe864510c9586a2d6074c97635125fcdd067b4f0af836e34d39f9c0bf"`
[INFO] running `"docker" "rm" "-f" "4b9fcfabe864510c9586a2d6074c97635125fcdd067b4f0af836e34d39f9c0bf"`
[INFO] [stdout] 4b9fcfabe864510c9586a2d6074c97635125fcdd067b4f0af836e34d39f9c0bf