[INFO] updating cached repository kogai/tetris
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/kogai/tetris
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/kogai/tetris" "work/ex/beta-1.37-6/sources/1.36.0/gh/kogai/tetris"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/kogai/tetris'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/kogai/tetris" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/kogai/tetris"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/kogai/tetris'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] bc9559b92ff95da9e8a4d603b6e481171f7d1d2c
[INFO] sha for GitHub repo kogai/tetris: bc9559b92ff95da9e8a4d603b6e481171f7d1d2c
[INFO] validating manifest of kogai/tetris on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of kogai/tetris on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing kogai/tetris
[INFO] finished frobbing kogai/tetris
[INFO] frobbed toml for kogai/tetris written to work/ex/beta-1.37-6/sources/1.36.0/gh/kogai/tetris/Cargo.toml
[INFO] started frobbing kogai/tetris
[INFO] finished frobbing kogai/tetris
[INFO] frobbed toml for kogai/tetris written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/kogai/tetris/Cargo.toml
[INFO] crate kogai/tetris already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing kogai/tetris against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-6/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/kogai/tetris:/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-2019-07-23" "build" "--frozen"`
[INFO] [stdout] c23d62e96c1fee031b15d8648ae6a38ac7626d938369720e1492ea9cf4355ba3
[INFO] running `"docker" "start" "-a" "c23d62e96c1fee031b15d8648ae6a38ac7626d938369720e1492ea9cf4355ba3"`
[INFO] [stderr]    Compiling tetris v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: method is never used: `send`
[INFO] [stderr]   --> src/command.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 |     pub fn send(&self, command: Command) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Left`
[INFO] [stderr]   --> src/command.rs:34:5
[INFO] [stderr]    |
[INFO] [stderr] 34 |     Left,
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Right`
[INFO] [stderr]   --> src/command.rs:35:5
[INFO] [stderr]    |
[INFO] [stderr] 35 |     Right,
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.65s
[INFO] running `"docker" "inspect" "c23d62e96c1fee031b15d8648ae6a38ac7626d938369720e1492ea9cf4355ba3"`
[INFO] running `"docker" "rm" "-f" "c23d62e96c1fee031b15d8648ae6a38ac7626d938369720e1492ea9cf4355ba3"`
[INFO] [stdout] c23d62e96c1fee031b15d8648ae6a38ac7626d938369720e1492ea9cf4355ba3
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-6/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/kogai/tetris:/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-2019-07-23" "test" "--frozen" "--no-run"`
[INFO] [stdout] 1e99a70762e9fbcf37ae133143d6f2802fe83fe5595b64f6d33054ce9fecdc02
[INFO] running `"docker" "start" "-a" "1e99a70762e9fbcf37ae133143d6f2802fe83fe5595b64f6d33054ce9fecdc02"`
[INFO] [stderr]    Compiling tetris v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: method is never used: `send`
[INFO] [stderr]   --> src/command.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 |     pub fn send(&self, command: Command) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Left`
[INFO] [stderr]   --> src/command.rs:34:5
[INFO] [stderr]    |
[INFO] [stderr] 34 |     Left,
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Right`
[INFO] [stderr]   --> src/command.rs:35:5
[INFO] [stderr]    |
[INFO] [stderr] 35 |     Right,
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.90s
[INFO] running `"docker" "inspect" "1e99a70762e9fbcf37ae133143d6f2802fe83fe5595b64f6d33054ce9fecdc02"`
[INFO] running `"docker" "rm" "-f" "1e99a70762e9fbcf37ae133143d6f2802fe83fe5595b64f6d33054ce9fecdc02"`
[INFO] [stdout] 1e99a70762e9fbcf37ae133143d6f2802fe83fe5595b64f6d33054ce9fecdc02
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-6/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/kogai/tetris:/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-2019-07-23" "test" "--frozen"`
[INFO] [stdout] 9edea1a6a39a475c7e6ea2131c95469935129daad8e74a6627b99c75fb530980
[INFO] running `"docker" "start" "-a" "9edea1a6a39a475c7e6ea2131c95469935129daad8e74a6627b99c75fb530980"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/tetris-809d6d8831b4c1ec
[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" "9edea1a6a39a475c7e6ea2131c95469935129daad8e74a6627b99c75fb530980"`
[INFO] running `"docker" "rm" "-f" "9edea1a6a39a475c7e6ea2131c95469935129daad8e74a6627b99c75fb530980"`
[INFO] [stdout] 9edea1a6a39a475c7e6ea2131c95469935129daad8e74a6627b99c75fb530980