[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/beta-1.38-1/sources/1.37.0/gh/AlexeyErzyamkin/game-servers"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/AlexeyErzyamkin/game-servers'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/AlexeyErzyamkin/game-servers" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/AlexeyErzyamkin/game-servers"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/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 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 AlexeyErzyamkin/game-servers 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 AlexeyErzyamkin/game-servers
[INFO] finished frobbing AlexeyErzyamkin/game-servers
[INFO] frobbed toml for AlexeyErzyamkin/game-servers written to work/ex/beta-1.38-1/sources/1.37.0/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/beta-1.38-1/sources/beta-2019-08-13/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" "+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 AlexeyErzyamkin/game-servers 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-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/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=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] 61ae80a1548600c33785bd8ea118e0e33d2fd19fb3784a9bb661bc14ef3558d2
[INFO] running `"docker" "start" "-a" "61ae80a1548600c33785bd8ea118e0e33d2fd19fb3784a9bb661bc14ef3558d2"`
[INFO] [stderr]    Compiling 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 0.98s
[INFO] running `"docker" "inspect" "61ae80a1548600c33785bd8ea118e0e33d2fd19fb3784a9bb661bc14ef3558d2"`
[INFO] running `"docker" "rm" "-f" "61ae80a1548600c33785bd8ea118e0e33d2fd19fb3784a9bb661bc14ef3558d2"`
[INFO] [stdout] 61ae80a1548600c33785bd8ea118e0e33d2fd19fb3784a9bb661bc14ef3558d2
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/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=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] 554d153dfdc8e4c5f173c98784e819f35c142781970dc41cb0f6d4aec0bb0c21
[INFO] running `"docker" "start" "-a" "554d153dfdc8e4c5f173c98784e819f35c142781970dc41cb0f6d4aec0bb0c21"`
[INFO] [stderr]    Compiling game-servers v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.92s
[INFO] running `"docker" "inspect" "554d153dfdc8e4c5f173c98784e819f35c142781970dc41cb0f6d4aec0bb0c21"`
[INFO] running `"docker" "rm" "-f" "554d153dfdc8e4c5f173c98784e819f35c142781970dc41cb0f6d4aec0bb0c21"`
[INFO] [stdout] 554d153dfdc8e4c5f173c98784e819f35c142781970dc41cb0f6d4aec0bb0c21
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/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=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] 45ad84971d1beece6b74b6bef4833d2ad6754127a9e8d165c72d40ac1adee7ee
[INFO] running `"docker" "start" "-a" "45ad84971d1beece6b74b6bef4833d2ad6754127a9e8d165c72d40ac1adee7ee"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/game_servers-dffd0b43c02d9b02
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test echo::connection::tests::connection_state_handshake_to_connected_transition ... ok
[INFO] [stdout] test echo::connection::tests::new_connection_has_handshake_state ... ok
[INFO] [stdout] test echo::connection::tests::connection_responds_the_same_as_read ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "45ad84971d1beece6b74b6bef4833d2ad6754127a9e8d165c72d40ac1adee7ee"`
[INFO] running `"docker" "rm" "-f" "45ad84971d1beece6b74b6bef4833d2ad6754127a9e8d165c72d40ac1adee7ee"`
[INFO] [stdout] 45ad84971d1beece6b74b6bef4833d2ad6754127a9e8d165c72d40ac1adee7ee