[INFO] updating cached repository https://github.com/Bstrutt/Sudoku
[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] b0992ab9af96450e18708f71c81dff7ceceeb0a8
[INFO] checking Bstrutt/Sudoku against master#73f76b74efcaf21bd5424d87c66cd6ed7fe5c7de for pr-68325
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBstrutt%2FSudoku" "/workspace/builds/worker-2/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Bstrutt/Sudoku on toolchain 73f76b74efcaf21bd5424d87c66cd6ed7fe5c7de
[INFO] running `"/workspace/cargo-home/bin/cargo" "+73f76b74efcaf21bd5424d87c66cd6ed7fe5c7de" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/Bstrutt/Sudoku
[INFO] finished tweaking git repo https://github.com/Bstrutt/Sudoku
[INFO] tweaked toml for git repo https://github.com/Bstrutt/Sudoku written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/Bstrutt/Sudoku already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+73f76b74efcaf21bd5424d87c66cd6ed7fe5c7de" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+73f76b74efcaf21bd5424d87c66cd6ed7fe5c7de" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] fad236e576d92d602c310f9c259c63fb5b1a473fc514f52879a5053813a068a7
[INFO] running `"docker" "start" "-a" "fad236e576d92d602c310f9c259c63fb5b1a473fc514f52879a5053813a068a7"`
[INFO] [stderr]     Checking sudoku v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]   --> src/solver.rs:13:26
[INFO] [stderr]    |
[INFO] [stderr] 13 |                 fill_row(&mut poss_matrix, i, cur_num);
[INFO] [stderr]    |                          ^^^^^^^^^^^^^^^^ expected struct `bit_vec::BitVec`, found `&bit_vec::BitVec`
[INFO] [stderr]    |
[INFO] [stderr]    = note: expected mutable reference `&mut [[bit_vec::BitVec; 9]; 9]`
[INFO] [stderr]               found mutable reference `&mut [[&bit_vec::BitVec; 9]; 9]`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]   --> src/solver.rs:14:26
[INFO] [stderr]    |
[INFO] [stderr] 14 |                 fill_col(&mut poss_matrix, j, cur_num);
[INFO] [stderr]    |                          ^^^^^^^^^^^^^^^^ expected struct `bit_vec::BitVec`, found `&bit_vec::BitVec`
[INFO] [stderr]    |
[INFO] [stderr]    = note: expected mutable reference `&mut [[bit_vec::BitVec; 9]; 9]`
[INFO] [stderr]               found mutable reference `&mut [[&bit_vec::BitVec; 9]; 9]`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]   --> src/solver.rs:15:26
[INFO] [stderr]    |
[INFO] [stderr] 15 |                 fill_fam(&mut poss_matrix, i, j, cur_num);
[INFO] [stderr]    |                          ^^^^^^^^^^^^^^^^ expected struct `bit_vec::BitVec`, found `&bit_vec::BitVec`
[INFO] [stderr]    |
[INFO] [stderr]    = note: expected mutable reference `&mut [[bit_vec::BitVec; 9]; 9]`
[INFO] [stderr]               found mutable reference `&mut [[&bit_vec::BitVec; 9]; 9]`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 3 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0308`.
[INFO] [stderr] error: could not compile `sudoku`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]   --> src/solver.rs:13:26
[INFO] [stderr]    |
[INFO] [stderr] 13 |                 fill_row(&mut poss_matrix, i, cur_num);
[INFO] [stderr]    |                          ^^^^^^^^^^^^^^^^ expected struct `bit_vec::BitVec`, found `&bit_vec::BitVec`
[INFO] [stderr]    |
[INFO] [stderr]    = note: expected mutable reference `&mut [[bit_vec::BitVec; 9]; 9]`
[INFO] [stderr]               found mutable reference `&mut [[&bit_vec::BitVec; 9]; 9]`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]   --> src/solver.rs:14:26
[INFO] [stderr]    |
[INFO] [stderr] 14 |                 fill_col(&mut poss_matrix, j, cur_num);
[INFO] [stderr]    |                          ^^^^^^^^^^^^^^^^ expected struct `bit_vec::BitVec`, found `&bit_vec::BitVec`
[INFO] [stderr]    |
[INFO] [stderr]    = note: expected mutable reference `&mut [[bit_vec::BitVec; 9]; 9]`
[INFO] [stderr]               found mutable reference `&mut [[&bit_vec::BitVec; 9]; 9]`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]   --> src/solver.rs:15:26
[INFO] [stderr]    |
[INFO] [stderr] 15 |                 fill_fam(&mut poss_matrix, i, j, cur_num);
[INFO] [stderr]    |                          ^^^^^^^^^^^^^^^^ expected struct `bit_vec::BitVec`, found `&bit_vec::BitVec`
[INFO] [stderr]    |
[INFO] [stderr]    = note: expected mutable reference `&mut [[bit_vec::BitVec; 9]; 9]`
[INFO] [stderr]               found mutable reference `&mut [[&bit_vec::BitVec; 9]; 9]`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 3 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0308`.
[INFO] [stderr] error: could not compile `sudoku`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "fad236e576d92d602c310f9c259c63fb5b1a473fc514f52879a5053813a068a7"`
[INFO] running `"docker" "rm" "-f" "fad236e576d92d602c310f9c259c63fb5b1a473fc514f52879a5053813a068a7"`
[INFO] [stdout] fad236e576d92d602c310f9c259c63fb5b1a473fc514f52879a5053813a068a7