[INFO] updating cached repository https://github.com/jaywunder/sudoku
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 9487c3c6330f8b9b8dd6335965a8997a7b6b9d96
[INFO] testing jaywunder/sudoku against beta-2019-09-28 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjaywunder%2Fsudoku" "work/builds/worker-5/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jaywunder/sudoku on toolchain beta-2019-09-28
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/jaywunder/sudoku
[INFO] finished tweaking git repo https://github.com/jaywunder/sudoku
[INFO] tweaked toml for git repo https://github.com/jaywunder/sudoku written to work/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/jaywunder/sudoku already has a lockfile, it will not be regenerated
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-5/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2019-09-28" "build" "--frozen"`
[INFO] [stdout] 0f3c4d230a25ccc322f53de3cfdc647f1a5769ed308d8dbe26edd2b8266aeb7f
[INFO] running `"docker" "start" "-a" "0f3c4d230a25ccc322f53de3cfdc647f1a5769ed308d8dbe26edd2b8266aeb7f"`
[INFO] [stderr]    Compiling unicode-segmentation v1.0.1
[INFO] [stderr]    Compiling memchr v1.0.1
[INFO] [stderr]    Compiling term_size v0.2.2
[INFO] [stderr]    Compiling csv v0.15.0
[INFO] [stderr]    Compiling clap v2.20.1
[INFO] [stderr]    Compiling sudoku v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/file_io.rs:17:55
[INFO] [stderr]    |
[INFO] [stderr] 17 | pub fn board_from_file(path: &Path) -> Result<Board, &error::Error> {
[INFO] [stderr]    |                                                       ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/file_io.rs:54:72
[INFO] [stderr]    |
[INFO] [stderr] 54 | pub fn board_to_file<'a>(path: &Path, board: &Board) -> Result<(), &'a error::Error> {
[INFO] [stderr]    |                                                                        ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.70s
[INFO] running `"docker" "inspect" "0f3c4d230a25ccc322f53de3cfdc647f1a5769ed308d8dbe26edd2b8266aeb7f"`
[INFO] running `"docker" "rm" "-f" "0f3c4d230a25ccc322f53de3cfdc647f1a5769ed308d8dbe26edd2b8266aeb7f"`
[INFO] [stdout] 0f3c4d230a25ccc322f53de3cfdc647f1a5769ed308d8dbe26edd2b8266aeb7f
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-5/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2019-09-28" "test" "--frozen" "--no-run"`
[INFO] [stdout] 9433d4c63ca29da6594bafa49b536402502cc5ef6369b1a1abab087d64f9abcc
[INFO] running `"docker" "start" "-a" "9433d4c63ca29da6594bafa49b536402502cc5ef6369b1a1abab087d64f9abcc"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling sudoku v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/file_io.rs:17:55
[INFO] [stderr]    |
[INFO] [stderr] 17 | pub fn board_from_file(path: &Path) -> Result<Board, &error::Error> {
[INFO] [stderr]    |                                                       ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/file_io.rs:54:72
[INFO] [stderr]    |
[INFO] [stderr] 54 | pub fn board_to_file<'a>(path: &Path, board: &Board) -> Result<(), &'a error::Error> {
[INFO] [stderr]    |                                                                        ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.95s
[INFO] running `"docker" "inspect" "9433d4c63ca29da6594bafa49b536402502cc5ef6369b1a1abab087d64f9abcc"`
[INFO] running `"docker" "rm" "-f" "9433d4c63ca29da6594bafa49b536402502cc5ef6369b1a1abab087d64f9abcc"`
[INFO] [stdout] 9433d4c63ca29da6594bafa49b536402502cc5ef6369b1a1abab087d64f9abcc
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-5/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2019-09-28" "test" "--frozen"`
[INFO] [stdout] 40256aff83bb89222d287bf0c7c09eb48b7ba11ff59f211bd152c3bb13b78a83
[INFO] running `"docker" "start" "-a" "40256aff83bb89222d287bf0c7c09eb48b7ba11ff59f211bd152c3bb13b78a83"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/sudoku-06da9d583248644d
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test tests::test_base_case ... ok
[INFO] [stdout] test tests::test_sudoku1 ... ok
[INFO] [stdout] test tests::test_sudoku2 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "40256aff83bb89222d287bf0c7c09eb48b7ba11ff59f211bd152c3bb13b78a83"`
[INFO] running `"docker" "rm" "-f" "40256aff83bb89222d287bf0c7c09eb48b7ba11ff59f211bd152c3bb13b78a83"`
[INFO] [stdout] 40256aff83bb89222d287bf0c7c09eb48b7ba11ff59f211bd152c3bb13b78a83