[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-1.38-1/sources/1.37.0/gh/NougatRillettes/FourInARust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/NougatRillettes/FourInARust'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/NougatRillettes/FourInARust" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/NougatRillettes/FourInARust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/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 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of NougatRillettes/FourInARust 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 NougatRillettes/FourInARust
[INFO] finished frobbing NougatRillettes/FourInARust
[INFO] frobbed toml for NougatRillettes/FourInARust written to work/ex/beta-1.38-1/sources/1.37.0/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-1.38-1/sources/beta-2019-08-13/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" "+1.37.0" "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 NougatRillettes/FourInARust 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-4/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/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-2019-08-13" "build" "--frozen"`
[INFO] [stdout] 556f46764966cfc18660ee6ae0a67381e696ed992fe31b39149762b7f2a6fa9c
[INFO] running `"docker" "start" "-a" "556f46764966cfc18660ee6ae0a67381e696ed992fe31b39149762b7f2a6fa9c"`
[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 4.24s
[INFO] running `"docker" "inspect" "556f46764966cfc18660ee6ae0a67381e696ed992fe31b39149762b7f2a6fa9c"`
[INFO] running `"docker" "rm" "-f" "556f46764966cfc18660ee6ae0a67381e696ed992fe31b39149762b7f2a6fa9c"`
[INFO] [stdout] 556f46764966cfc18660ee6ae0a67381e696ed992fe31b39149762b7f2a6fa9c
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/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/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-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] 4b7ef131072929d8ec45e180266261c117edbbb23bc615fe26ceff05c4b94b41
[INFO] running `"docker" "start" "-a" "4b7ef131072929d8ec45e180266261c117edbbb23bc615fe26ceff05c4b94b41"`
[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 1.80s
[INFO] running `"docker" "inspect" "4b7ef131072929d8ec45e180266261c117edbbb23bc615fe26ceff05c4b94b41"`
[INFO] running `"docker" "rm" "-f" "4b7ef131072929d8ec45e180266261c117edbbb23bc615fe26ceff05c4b94b41"`
[INFO] [stdout] 4b7ef131072929d8ec45e180266261c117edbbb23bc615fe26ceff05c4b94b41
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/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/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-2019-08-13" "test" "--frozen"`
[INFO] [stdout] d94959e9e3e77c09416e0c11f2b865ebffb3160dffc99d260ef56ec0f6817091
[INFO] running `"docker" "start" "-a" "d94959e9e3e77c09416e0c11f2b865ebffb3160dffc99d260ef56ec0f6817091"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/4_in_a_rust-d27bde8fe46d60b3
[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-6b44458e679edb46
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test board::tests::generaltest ... ok
[INFO] [stdout] test board::tests::addtokenpanic1 ... ok
[INFO] [stdout] test board::tests::addtokenpanic2 ... ok
[INFO] [stdout] test board::tests::addtokenpanic3 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests 4_in_a_rust
[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" "d94959e9e3e77c09416e0c11f2b865ebffb3160dffc99d260ef56ec0f6817091"`
[INFO] running `"docker" "rm" "-f" "d94959e9e3e77c09416e0c11f2b865ebffb3160dffc99d260ef56ec0f6817091"`
[INFO] [stdout] d94959e9e3e77c09416e0c11f2b865ebffb3160dffc99d260ef56ec0f6817091