[INFO] updating cached repository Pungyeon/rust-tactoe
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/Pungyeon/rust-tactoe
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/Pungyeon/rust-tactoe" "work/ex/beta-1.38-1/sources/1.37.0/gh/Pungyeon/rust-tactoe"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/Pungyeon/rust-tactoe'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Pungyeon/rust-tactoe" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Pungyeon/rust-tactoe"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Pungyeon/rust-tactoe'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 33c9895132464ebc3c8edf4068e2af1cd2f346eb
[INFO] sha for GitHub repo Pungyeon/rust-tactoe: 33c9895132464ebc3c8edf4068e2af1cd2f346eb
[INFO] validating manifest of Pungyeon/rust-tactoe 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 Pungyeon/rust-tactoe 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 Pungyeon/rust-tactoe
[INFO] finished frobbing Pungyeon/rust-tactoe
[INFO] frobbed toml for Pungyeon/rust-tactoe written to work/ex/beta-1.38-1/sources/1.37.0/gh/Pungyeon/rust-tactoe/Cargo.toml
[INFO] started frobbing Pungyeon/rust-tactoe
[INFO] finished frobbing Pungyeon/rust-tactoe
[INFO] frobbed toml for Pungyeon/rust-tactoe written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Pungyeon/rust-tactoe/Cargo.toml
[INFO] crate Pungyeon/rust-tactoe 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 Pungyeon/rust-tactoe 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-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/Pungyeon/rust-tactoe:/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] f4e9bacaedb58f128f694a0d0b3e444fc040db3ca1f7a95c4a9fb2f9a8f5810b
[INFO] running `"docker" "start" "-a" "f4e9bacaedb58f128f694a0d0b3e444fc040db3ca1f7a95c4a9fb2f9a8f5810b"`
[INFO] [stderr]    Compiling rust_play v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `txt`
[INFO] [stderr]    --> src/main.rs:209:16
[INFO] [stderr]     |
[INFO] [stderr] 209 |             Ok(txt) => {
[INFO] [stderr]     |                ^^^ help: consider prefixing with an underscore: `_txt`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.75s
[INFO] running `"docker" "inspect" "f4e9bacaedb58f128f694a0d0b3e444fc040db3ca1f7a95c4a9fb2f9a8f5810b"`
[INFO] running `"docker" "rm" "-f" "f4e9bacaedb58f128f694a0d0b3e444fc040db3ca1f7a95c4a9fb2f9a8f5810b"`
[INFO] [stdout] f4e9bacaedb58f128f694a0d0b3e444fc040db3ca1f7a95c4a9fb2f9a8f5810b
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/Pungyeon/rust-tactoe:/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] 21259c5cc3d60cbe49ad8e73a99ff6c72bcc2bcfedd290c53315066b4c621a58
[INFO] running `"docker" "start" "-a" "21259c5cc3d60cbe49ad8e73a99ff6c72bcc2bcfedd290c53315066b4c621a58"`
[INFO] [stderr]    Compiling rust_play v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `txt`
[INFO] [stderr]    --> src/main.rs:209:16
[INFO] [stderr]     |
[INFO] [stderr] 209 |             Ok(txt) => {
[INFO] [stderr]     |                ^^^ help: consider prefixing with an underscore: `_txt`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.84s
[INFO] running `"docker" "inspect" "21259c5cc3d60cbe49ad8e73a99ff6c72bcc2bcfedd290c53315066b4c621a58"`
[INFO] running `"docker" "rm" "-f" "21259c5cc3d60cbe49ad8e73a99ff6c72bcc2bcfedd290c53315066b4c621a58"`
[INFO] [stdout] 21259c5cc3d60cbe49ad8e73a99ff6c72bcc2bcfedd290c53315066b4c621a58
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/Pungyeon/rust-tactoe:/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] 36f6d663497422502d3f2696d55c7eaa1706addd376a40f4b6f5729ce16befc2
[INFO] running `"docker" "start" "-a" "36f6d663497422502d3f2696d55c7eaa1706addd376a40f4b6f5729ce16befc2"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/rust_play-d9bfa872d7bc5e31
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test test_game_winning_state ... ok
[INFO] [stdout] test test_play_on_board ... ok
[INFO] [stdout] test test_play_on_board_twice ... ok
[INFO] [stdout] test test_player_changes_on_first_move ... ok
[INFO] [stdout] test test_start_game ... ok
[INFO] [stdout] test test_player_changes_on_second_move ... ok
[INFO] [stdout] test test_play_on_boar_cannot_overwrite ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "36f6d663497422502d3f2696d55c7eaa1706addd376a40f4b6f5729ce16befc2"`
[INFO] running `"docker" "rm" "-f" "36f6d663497422502d3f2696d55c7eaa1706addd376a40f4b6f5729ce16befc2"`
[INFO] [stdout] 36f6d663497422502d3f2696d55c7eaa1706addd376a40f4b6f5729ce16befc2