[INFO] updating cached repository NougatRillettes/FourInARust
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/NougatRillettes/FourInARust
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/NougatRillettes/FourInARust" "work/ex/beta-1.37-6/sources/1.36.0/gh/NougatRillettes/FourInARust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/NougatRillettes/FourInARust'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/NougatRillettes/FourInARust" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/NougatRillettes/FourInARust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/NougatRillettes/FourInARust'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 40a5032bf9fdcbf0488686c2cc49edd3dd9a472b
[INFO] sha for GitHub repo NougatRillettes/FourInARust: 40a5032bf9fdcbf0488686c2cc49edd3dd9a472b
[INFO] validating manifest of NougatRillettes/FourInARust 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 NougatRillettes/FourInARust 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 NougatRillettes/FourInARust
[INFO] finished frobbing NougatRillettes/FourInARust
[INFO] frobbed toml for NougatRillettes/FourInARust written to work/ex/beta-1.37-6/sources/1.36.0/gh/NougatRillettes/FourInARust/Cargo.toml
[INFO] started frobbing NougatRillettes/FourInARust
[INFO] finished frobbing NougatRillettes/FourInARust
[INFO] frobbed toml for NougatRillettes/FourInARust written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/NougatRillettes/FourInARust/Cargo.toml
[INFO] crate NougatRillettes/FourInARust 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 NougatRillettes/FourInARust 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-0/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/NougatRillettes/FourInARust:/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] 0df3e8cea76cd39399c3ad9d8770f93d694e04ea0b2368bb0e3f6c595d4e8a43
[INFO] running `"docker" "start" "-a" "0df3e8cea76cd39399c3ad9d8770f93d694e04ea0b2368bb0e3f6c595d4e8a43"`
[INFO] [stderr]    Compiling ncurses v5.87.0
[INFO] [stderr]    Compiling four_in_a_rust v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `Index`
[INFO] [stderr]  --> src/board.rs:3:16
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::ops::{Index};
[INFO] [stderr]   |                ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.05s
[INFO] running `"docker" "inspect" "0df3e8cea76cd39399c3ad9d8770f93d694e04ea0b2368bb0e3f6c595d4e8a43"`
[INFO] running `"docker" "rm" "-f" "0df3e8cea76cd39399c3ad9d8770f93d694e04ea0b2368bb0e3f6c595d4e8a43"`
[INFO] [stdout] 0df3e8cea76cd39399c3ad9d8770f93d694e04ea0b2368bb0e3f6c595d4e8a43
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-0/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/NougatRillettes/FourInARust:/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] d052dc9f2261d3b68ed36035a49b2486b29b8e721a52ed4e410b92d0bafbd248
[INFO] running `"docker" "start" "-a" "d052dc9f2261d3b68ed36035a49b2486b29b8e721a52ed4e410b92d0bafbd248"`
[INFO] [stderr]    Compiling four_in_a_rust v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `Index`
[INFO] [stderr]  --> src/board.rs:3:16
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::ops::{Index};
[INFO] [stderr]   |                ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.09s
[INFO] running `"docker" "inspect" "d052dc9f2261d3b68ed36035a49b2486b29b8e721a52ed4e410b92d0bafbd248"`
[INFO] running `"docker" "rm" "-f" "d052dc9f2261d3b68ed36035a49b2486b29b8e721a52ed4e410b92d0bafbd248"`
[INFO] [stdout] d052dc9f2261d3b68ed36035a49b2486b29b8e721a52ed4e410b92d0bafbd248
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-0/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/NougatRillettes/FourInARust:/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] 668478b3b92d458b4fb89f3fe8d70a153905dd9f67f15129fed3875b70f4882f
[INFO] running `"docker" "start" "-a" "668478b3b92d458b4fb89f3fe8d70a153905dd9f67f15129fed3875b70f4882f"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/4_in_a_rust-13cb6932e9be39be
[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]      Running /opt/crater/target/debug/deps/four_in_a_rust-30e0ea9a3a041d9a
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test board::tests::generaltest ... ok
[INFO] [stderr]    Doc-tests 4_in_a_rust
[INFO] [stdout] test board::tests::addtokenpanic3 ... ok
[INFO] [stdout] test board::tests::addtokenpanic1 ... ok
[INFO] [stdout] test board::tests::addtokenpanic2 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[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" "668478b3b92d458b4fb89f3fe8d70a153905dd9f67f15129fed3875b70f4882f"`
[INFO] running `"docker" "rm" "-f" "668478b3b92d458b4fb89f3fe8d70a153905dd9f67f15129fed3875b70f4882f"`
[INFO] [stdout] 668478b3b92d458b4fb89f3fe8d70a153905dd9f67f15129fed3875b70f4882f