[INFO] updating cached repository https://github.com/jounathaen/Sudoku_Rust
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/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] 9f2b60f0a97884ef93bbcec023c8ce28476dc33b
[INFO] testing jounathaen/Sudoku_Rust against try#41997647ba6a77908f6ef64401414feb00bccf16 for pr-71274
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjounathaen%2FSudoku_Rust" "/workspace/builds/worker-0/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jounathaen/Sudoku_Rust on toolchain 41997647ba6a77908f6ef64401414feb00bccf16
[INFO] running `"/workspace/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/jounathaen/Sudoku_Rust
[INFO] finished tweaking git repo https://github.com/jounathaen/Sudoku_Rust
[INFO] tweaked toml for git repo https://github.com/jounathaen/Sudoku_Rust written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/jounathaen/Sudoku_Rust already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-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" "+41997647ba6a77908f6ef64401414feb00bccf16" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] a98cfd8d702ebf723597e175717748af087e41e9aedb583d26d70ebffc94500a
[INFO] running `"docker" "start" "-a" "a98cfd8d702ebf723597e175717748af087e41e9aedb583d26d70ebffc94500a"`
[INFO] [stderr]    Compiling libc v0.2.36
[INFO] [stderr]    Compiling serde v1.0.27
[INFO] [stderr]    Compiling memchr v2.0.1
[INFO] [stderr]    Compiling termion v1.5.1
[INFO] [stderr]    Compiling time v0.1.39
[INFO] [stderr]    Compiling csv-core v0.1.4
[INFO] [stderr]    Compiling csv v1.0.0-beta.5
[INFO] [stderr]    Compiling sudoku v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/field.rs:137:76
[INFO] [stderr]     |
[INFO] [stderr] 137 |                          x_coord: usize, y_coord: usize) -> 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: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/field.rs:160:50
[INFO] [stderr]     |
[INFO] [stderr] 160 | ...                   -> Result<(), Box<Error>>{
[INFO] [stderr]     |                                         ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/field.rs:187:51
[INFO] [stderr]     |
[INFO] [stderr] 187 | ...                   -> Result<(), Box<Error>>{
[INFO] [stderr]     |                                         ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/field.rs:213:53
[INFO] [stderr]     |
[INFO] [stderr] 213 | ...                   -> Result<(), Box<Error>>{
[INFO] [stderr]     |                                         ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary braces around `while` condition
[INFO] [stderr]    --> src/field.rs:281:15
[INFO] [stderr]     |
[INFO] [stderr] 281 |         while {changes > 0 } {
[INFO] [stderr]     |               ^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_braces)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/field.rs:532:69
[INFO] [stderr]     |
[INFO] [stderr] 532 | pub fn solve_sudokus_from_csv(file_path: &String) -> Result<(), Box<Error>> {
[INFO] [stderr]     |                                                                     ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: 6 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [optimized] target(s) in 22.37s
[INFO] running `"docker" "inspect" "a98cfd8d702ebf723597e175717748af087e41e9aedb583d26d70ebffc94500a"`
[INFO] running `"docker" "rm" "-f" "a98cfd8d702ebf723597e175717748af087e41e9aedb583d26d70ebffc94500a"`
[INFO] [stdout] a98cfd8d702ebf723597e175717748af087e41e9aedb583d26d70ebffc94500a
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-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" "+41997647ba6a77908f6ef64401414feb00bccf16" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 984f238e28c40a3b5c1229d40efecde5cab4a9ab94a01c2171bb88263c161ea0
[INFO] running `"docker" "start" "-a" "984f238e28c40a3b5c1229d40efecde5cab4a9ab94a01c2171bb88263c161ea0"`
[INFO] [stderr]    Compiling sudoku v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/field.rs:137:76
[INFO] [stderr]     |
[INFO] [stderr] 137 |                          x_coord: usize, y_coord: usize) -> 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: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/field.rs:160:50
[INFO] [stderr]     |
[INFO] [stderr] 160 | ...                   -> Result<(), Box<Error>>{
[INFO] [stderr]     |                                         ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/field.rs:187:51
[INFO] [stderr]     |
[INFO] [stderr] 187 | ...                   -> Result<(), Box<Error>>{
[INFO] [stderr]     |                                         ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/field.rs:213:53
[INFO] [stderr]     |
[INFO] [stderr] 213 | ...                   -> Result<(), Box<Error>>{
[INFO] [stderr]     |                                         ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary braces around `while` condition
[INFO] [stderr]    --> src/field.rs:281:15
[INFO] [stderr]     |
[INFO] [stderr] 281 |         while {changes > 0 } {
[INFO] [stderr]     |               ^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_braces)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/field.rs:532:69
[INFO] [stderr]     |
[INFO] [stderr] 532 | pub fn solve_sudokus_from_csv(file_path: &String) -> Result<(), Box<Error>> {
[INFO] [stderr]     |                                                                     ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]    --> src/field.rs:624:30
[INFO] [stderr]     |
[INFO] [stderr] 624 |         println!("{}\n{}", e.description(), e);
[INFO] [stderr]     |                              ^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 7 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [optimized] target(s) in 1.96s
[INFO] running `"docker" "inspect" "984f238e28c40a3b5c1229d40efecde5cab4a9ab94a01c2171bb88263c161ea0"`
[INFO] running `"docker" "rm" "-f" "984f238e28c40a3b5c1229d40efecde5cab4a9ab94a01c2171bb88263c161ea0"`
[INFO] [stdout] 984f238e28c40a3b5c1229d40efecde5cab4a9ab94a01c2171bb88263c161ea0
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-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" "+41997647ba6a77908f6ef64401414feb00bccf16" "test" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] f32cd768d0eec0fae4c2a04f1309cfc75eb70f4d3f64650abfa4614ffbdcbbe4
[INFO] running `"docker" "start" "-a" "f32cd768d0eec0fae4c2a04f1309cfc75eb70f4d3f64650abfa4614ffbdcbbe4"`
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/field.rs:137:76
[INFO] [stderr]     |
[INFO] [stderr] 137 |                          x_coord: usize, y_coord: usize) -> 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: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/field.rs:160:50
[INFO] [stderr]     |
[INFO] [stderr] 160 | ...                   -> Result<(), Box<Error>>{
[INFO] [stderr]     |                                         ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/field.rs:187:51
[INFO] [stderr]     |
[INFO] [stderr] 187 | ...                   -> Result<(), Box<Error>>{
[INFO] [stderr]     |                                         ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/field.rs:213:53
[INFO] [stderr]     |
[INFO] [stderr] 213 | ...                   -> Result<(), Box<Error>>{
[INFO] [stderr]     |                                         ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary braces around `while` condition
[INFO] [stderr]    --> src/field.rs:281:15
[INFO] [stderr]     |
[INFO] [stderr] 281 |         while {changes > 0 } {
[INFO] [stderr]     |               ^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_braces)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/field.rs:532:69
[INFO] [stderr]     |
[INFO] [stderr] 532 | pub fn solve_sudokus_from_csv(file_path: &String) -> Result<(), Box<Error>> {
[INFO] [stderr]     |                                                                     ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]    --> src/field.rs:624:30
[INFO] [stderr]     |
[INFO] [stderr] 624 |         println!("{}\n{}", e.description(), e);
[INFO] [stderr]     |                              ^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 7 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [optimized] target(s) in 0.13s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/sudoku-64b26aac283d0170
[INFO] [stdout] 
[INFO] [stdout] running 20 tests
[INFO] [stdout] test field::test::is_solved ... ok
[INFO] [stdout] test field::test::insert_twice ... ok
[INFO] [stdout] test field::test::possibilities_constistent ... ok
[INFO] [stdout] test field::test::remove_guesses_col ... ok
[INFO] [stdout] test field::test::print_sudoku ... ok
[INFO] [stdout] test field::test::valid_grid ... ok
[INFO] [stdout] test field::test::remove_guesses_square ... ok
[INFO] [stdout] test field::test::solve_obvious ... ok
[INFO] [stdout] test field::test::easy_solve ... ok
[INFO] [stdout] test field::test::insert_number ... ok
[INFO] [stdout] test field::test::remove_guesses_line ... ok
[INFO] [stdout] test field::test::read_from_string ... ok
[INFO] [stdout] test field::test::read_from_csv ... ok
[INFO] [stdout] test field::test::insert_invalid_large_number ... ok
[INFO] [stdout] test field::test::insert_out_of_bound ... ok
[INFO] [stdout] test field::test::invalid_grid ... ok
[INFO] [stdout] test field::test::field_double_number ... ok
[INFO] [stdout] test field::test::read_from_invalid_length_string ... ok
[INFO] [stdout] test field::test::insert_zero ... ok
[INFO] [stdout] test field::test::read_from_invalid_string ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 20 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "f32cd768d0eec0fae4c2a04f1309cfc75eb70f4d3f64650abfa4614ffbdcbbe4"`
[INFO] running `"docker" "rm" "-f" "f32cd768d0eec0fae4c2a04f1309cfc75eb70f4d3f64650abfa4614ffbdcbbe4"`
[INFO] [stdout] f32cd768d0eec0fae4c2a04f1309cfc75eb70f4d3f64650abfa4614ffbdcbbe4