[INFO] updating cached repository 27factorial/chat_server
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/27factorial/chat_server
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/27factorial/chat_server" "work/ex/beta-1.38-1/sources/1.37.0/gh/27factorial/chat_server"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/27factorial/chat_server'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/27factorial/chat_server" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/27factorial/chat_server"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/27factorial/chat_server'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] fff030bf436d347576f2bb90f5a07c9dd9594c97
[INFO] sha for GitHub repo 27factorial/chat_server: fff030bf436d347576f2bb90f5a07c9dd9594c97
[INFO] validating manifest of 27factorial/chat_server 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 27factorial/chat_server 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 27factorial/chat_server
[INFO] finished frobbing 27factorial/chat_server
[INFO] frobbed toml for 27factorial/chat_server written to work/ex/beta-1.38-1/sources/1.37.0/gh/27factorial/chat_server/Cargo.toml
[INFO] started frobbing 27factorial/chat_server
[INFO] finished frobbing 27factorial/chat_server
[INFO] frobbed toml for 27factorial/chat_server written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/27factorial/chat_server/Cargo.toml
[INFO] crate 27factorial/chat_server 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 27factorial/chat_server against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/27factorial/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=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" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] b5c6351326ee96d5476f9888f5ed13b145b9a9fbc6709997c5929730b8de9295
[INFO] running `"docker" "start" "-a" "b5c6351326ee96d5476f9888f5ed13b145b9a9fbc6709997c5929730b8de9295"`
[INFO] [stderr]    Compiling chat_server v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variant is never constructed: `Terminated`
[INFO] [stderr]   --> src/server.rs:45:5
[INFO] [stderr]    |
[INFO] [stderr] 45 |     Terminated,
[INFO] [stderr]    |     ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.65s
[INFO] running `"docker" "inspect" "b5c6351326ee96d5476f9888f5ed13b145b9a9fbc6709997c5929730b8de9295"`
[INFO] running `"docker" "rm" "-f" "b5c6351326ee96d5476f9888f5ed13b145b9a9fbc6709997c5929730b8de9295"`
[INFO] [stdout] b5c6351326ee96d5476f9888f5ed13b145b9a9fbc6709997c5929730b8de9295
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/27factorial/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=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" "+beta-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] bd769aa0ca8788ebaafbdf8c32076a13d1fe33e06679772d7e39ec863fdd012a
[INFO] running `"docker" "start" "-a" "bd769aa0ca8788ebaafbdf8c32076a13d1fe33e06679772d7e39ec863fdd012a"`
[INFO] [stderr]    Compiling chat_server v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variant is never constructed: `Terminated`
[INFO] [stderr]   --> src/server.rs:45:5
[INFO] [stderr]    |
[INFO] [stderr] 45 |     Terminated,
[INFO] [stderr]    |     ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.91s
[INFO] running `"docker" "inspect" "bd769aa0ca8788ebaafbdf8c32076a13d1fe33e06679772d7e39ec863fdd012a"`
[INFO] running `"docker" "rm" "-f" "bd769aa0ca8788ebaafbdf8c32076a13d1fe33e06679772d7e39ec863fdd012a"`
[INFO] [stdout] bd769aa0ca8788ebaafbdf8c32076a13d1fe33e06679772d7e39ec863fdd012a
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/27factorial/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=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" "+beta-2019-08-13" "test" "--frozen"`
[INFO] [stdout] e6ad054b6c453adad530c668900a24183ec7a86ffedab83370a50bb76e19e54c
[INFO] running `"docker" "start" "-a" "e6ad054b6c453adad530c668900a24183ec7a86ffedab83370a50bb76e19e54c"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/chat_server-6b9e0c290a9b5dee
[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" "e6ad054b6c453adad530c668900a24183ec7a86ffedab83370a50bb76e19e54c"`
[INFO] running `"docker" "rm" "-f" "e6ad054b6c453adad530c668900a24183ec7a86ffedab83370a50bb76e19e54c"`
[INFO] [stdout] e6ad054b6c453adad530c668900a24183ec7a86ffedab83370a50bb76e19e54c