[INFO] updating cached repository calvinchengx/tetrimino
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/calvinchengx/tetrimino
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/calvinchengx/tetrimino" "work/ex/beta-1.38-1/sources/1.37.0/gh/calvinchengx/tetrimino"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/calvinchengx/tetrimino'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/calvinchengx/tetrimino" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/calvinchengx/tetrimino"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/calvinchengx/tetrimino'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 0a5fea4f03ab6a5c679731166aacff9b06f7c76d
[INFO] sha for GitHub repo calvinchengx/tetrimino: 0a5fea4f03ab6a5c679731166aacff9b06f7c76d
[INFO] validating manifest of calvinchengx/tetrimino 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 calvinchengx/tetrimino 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 calvinchengx/tetrimino
[INFO] finished frobbing calvinchengx/tetrimino
[INFO] frobbed toml for calvinchengx/tetrimino written to work/ex/beta-1.38-1/sources/1.37.0/gh/calvinchengx/tetrimino/Cargo.toml
[INFO] started frobbing calvinchengx/tetrimino
[INFO] finished frobbing calvinchengx/tetrimino
[INFO] frobbed toml for calvinchengx/tetrimino written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/calvinchengx/tetrimino/Cargo.toml
[INFO] crate calvinchengx/tetrimino 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 calvinchengx/tetrimino 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-6/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/calvinchengx/tetrimino:/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] 4194e8ae121ab6b4c181caa2a80233dd7bb8376594ee81a7e2ae2f3aa1a2717f
[INFO] running `"docker" "start" "-a" "4194e8ae121ab6b4c181caa2a80233dd7bb8376594ee81a7e2ae2f3aa1a2717f"`
[INFO] [stderr]    Compiling tetrimino v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `tetrimino`
[INFO] [stderr]   --> src/main.rs:76:9
[INFO] [stderr]    |
[INFO] [stderr] 76 |     let tetrimino = create_new_tetrimino();
[INFO] [stderr]    |         ^^^^^^^^^ help: consider prefixing with an underscore: `_tetrimino`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `states`
[INFO] [stderr]  --> src/main.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     states: States, // list of possible states of the tetrinimo
[INFO] [stderr]   |     ^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `x`
[INFO] [stderr]  --> src/main.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 |     x: isize,   // x position of the tetrinimo 
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `y`
[INFO] [stderr]   --> src/main.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     y: usize,   // y position of the tetrinimo
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `current_state`
[INFO] [stderr]   --> src/main.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 |     current_state: u8,  // state in which the tetrinimo is currently
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.90s
[INFO] running `"docker" "inspect" "4194e8ae121ab6b4c181caa2a80233dd7bb8376594ee81a7e2ae2f3aa1a2717f"`
[INFO] running `"docker" "rm" "-f" "4194e8ae121ab6b4c181caa2a80233dd7bb8376594ee81a7e2ae2f3aa1a2717f"`
[INFO] [stdout] 4194e8ae121ab6b4c181caa2a80233dd7bb8376594ee81a7e2ae2f3aa1a2717f
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/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/calvinchengx/tetrimino:/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] 2414f497b9e888bd0786b753d3280ded550f42d88b4e08e0409f0ff529b3bda7
[INFO] running `"docker" "start" "-a" "2414f497b9e888bd0786b753d3280ded550f42d88b4e08e0409f0ff529b3bda7"`
[INFO] [stderr]    Compiling tetrimino v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `tetrimino`
[INFO] [stderr]   --> src/main.rs:76:9
[INFO] [stderr]    |
[INFO] [stderr] 76 |     let tetrimino = create_new_tetrimino();
[INFO] [stderr]    |         ^^^^^^^^^ help: consider prefixing with an underscore: `_tetrimino`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `states`
[INFO] [stderr]  --> src/main.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     states: States, // list of possible states of the tetrinimo
[INFO] [stderr]   |     ^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `x`
[INFO] [stderr]  --> src/main.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 |     x: isize,   // x position of the tetrinimo 
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `y`
[INFO] [stderr]   --> src/main.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     y: usize,   // y position of the tetrinimo
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `current_state`
[INFO] [stderr]   --> src/main.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 |     current_state: u8,  // state in which the tetrinimo is currently
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.69s
[INFO] running `"docker" "inspect" "2414f497b9e888bd0786b753d3280ded550f42d88b4e08e0409f0ff529b3bda7"`
[INFO] running `"docker" "rm" "-f" "2414f497b9e888bd0786b753d3280ded550f42d88b4e08e0409f0ff529b3bda7"`
[INFO] [stdout] 2414f497b9e888bd0786b753d3280ded550f42d88b4e08e0409f0ff529b3bda7
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/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/calvinchengx/tetrimino:/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] 7151522d0f932b0d367d321ddad60e3bb7b1fac76babfee101a4eee969c5fbbc
[INFO] running `"docker" "start" "-a" "7151522d0f932b0d367d321ddad60e3bb7b1fac76babfee101a4eee969c5fbbc"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/tetrimino-5f6d0bf0a7666447
[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" "7151522d0f932b0d367d321ddad60e3bb7b1fac76babfee101a4eee969c5fbbc"`
[INFO] running `"docker" "rm" "-f" "7151522d0f932b0d367d321ddad60e3bb7b1fac76babfee101a4eee969c5fbbc"`
[INFO] [stdout] 7151522d0f932b0d367d321ddad60e3bb7b1fac76babfee101a4eee969c5fbbc