[INFO] updating cached repository Embraser01/Minesweeper
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/Embraser01/Minesweeper
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/Embraser01/Minesweeper" "work/ex/beta-1.37-6/sources/1.36.0/gh/Embraser01/Minesweeper"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/Embraser01/Minesweeper'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Embraser01/Minesweeper" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/Embraser01/Minesweeper"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/Embraser01/Minesweeper'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] b78104a8e28d6a724f72bfe8c61ddc5ccde20876
[INFO] sha for GitHub repo Embraser01/Minesweeper: b78104a8e28d6a724f72bfe8c61ddc5ccde20876
[INFO] validating manifest of Embraser01/Minesweeper 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 Embraser01/Minesweeper 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 Embraser01/Minesweeper
[INFO] finished frobbing Embraser01/Minesweeper
[INFO] frobbed toml for Embraser01/Minesweeper written to work/ex/beta-1.37-6/sources/1.36.0/gh/Embraser01/Minesweeper/Cargo.toml
[INFO] started frobbing Embraser01/Minesweeper
[INFO] finished frobbing Embraser01/Minesweeper
[INFO] frobbed toml for Embraser01/Minesweeper written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/Embraser01/Minesweeper/Cargo.toml
[INFO] crate Embraser01/Minesweeper 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 Embraser01/Minesweeper 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-7/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/Embraser01/Minesweeper:/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] 209af3882366ec3fe222276857265f2ffe169a2492499a9075d7e6d155085377
[INFO] running `"docker" "start" "-a" "209af3882366ec3fe222276857265f2ffe169a2492499a9075d7e6d155085377"`
[INFO] [stderr]    Compiling libc v0.2.30
[INFO] [stderr]    Compiling rand v0.3.16
[INFO] [stderr]    Compiling minesweeper v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:29:46
[INFO] [stderr]    |
[INFO] [stderr] 29 | pub fn run(config: Config) -> Result<(), Box<Error>> {
[INFO] [stderr]    |                                              ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `on_click`
[INFO] [stderr]   --> src/field/mod.rs:56:5
[INFO] [stderr]    |
[INFO] [stderr] 56 |     pub fn on_click(&mut self, x: usize, y: usize) -> bool {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.49s
[INFO] running `"docker" "inspect" "209af3882366ec3fe222276857265f2ffe169a2492499a9075d7e6d155085377"`
[INFO] running `"docker" "rm" "-f" "209af3882366ec3fe222276857265f2ffe169a2492499a9075d7e6d155085377"`
[INFO] [stdout] 209af3882366ec3fe222276857265f2ffe169a2492499a9075d7e6d155085377
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-7/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/Embraser01/Minesweeper:/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] 28596cc7b07b27f9dc438fece0ad4b3801f5a58080eee239621e3e9ad61ded38
[INFO] running `"docker" "start" "-a" "28596cc7b07b27f9dc438fece0ad4b3801f5a58080eee239621e3e9ad61ded38"`
[INFO] [stderr]    Compiling minesweeper v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:29:46
[INFO] [stderr]    |
[INFO] [stderr] 29 | pub fn run(config: Config) -> Result<(), Box<Error>> {
[INFO] [stderr]    |                                              ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `on_click`
[INFO] [stderr]   --> src/field/mod.rs:56:5
[INFO] [stderr]    |
[INFO] [stderr] 56 |     pub fn on_click(&mut self, x: usize, y: usize) -> bool {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.26s
[INFO] running `"docker" "inspect" "28596cc7b07b27f9dc438fece0ad4b3801f5a58080eee239621e3e9ad61ded38"`
[INFO] running `"docker" "rm" "-f" "28596cc7b07b27f9dc438fece0ad4b3801f5a58080eee239621e3e9ad61ded38"`
[INFO] [stdout] 28596cc7b07b27f9dc438fece0ad4b3801f5a58080eee239621e3e9ad61ded38
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-7/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/Embraser01/Minesweeper:/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] 3ac85130ccc0a69a69e6817b680f5e165e79ff30dc672b37890941e827e5737a
[INFO] running `"docker" "start" "-a" "3ac85130ccc0a69a69e6817b680f5e165e79ff30dc672b37890941e827e5737a"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/minesweeper-269d444802709886
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test field::cell::tests::should_clone ... ok
[INFO] [stdout] test field::cell::tests::value_must_be_invisible ... ok
[INFO] [stdout] test field::tests::display_all_invisible ... ok
[INFO] [stdout] test tests::it_works ... ok
[INFO] [stdout] test field::cell::tests::value_must_be_visible ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/minesweeper-1a24145fb7f7fc86
[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] [stderr]    Doc-tests minesweeper
[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" "3ac85130ccc0a69a69e6817b680f5e165e79ff30dc672b37890941e827e5737a"`
[INFO] running `"docker" "rm" "-f" "3ac85130ccc0a69a69e6817b680f5e165e79ff30dc672b37890941e827e5737a"`
[INFO] [stdout] 3ac85130ccc0a69a69e6817b680f5e165e79ff30dc672b37890941e827e5737a