[INFO] cloning repository https://github.com/ydm/sudoku
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ydm/sudoku" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fydm%2Fsudoku", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fydm%2Fsudoku'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9063f626dcb7189900939fc2545747c25458d1bd
[INFO] testing ydm/sudoku against master#62efba8a050c64249dab942951bb28f710208bc8 for pr-90799
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fydm%2Fsudoku" "/workspace/builds/worker-65/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-65/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ydm/sudoku on toolchain 62efba8a050c64249dab942951bb28f710208bc8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ydm/sudoku
[INFO] finished tweaking git repo https://github.com/ydm/sudoku
[INFO] tweaked toml for git repo https://github.com/ydm/sudoku written to /workspace/builds/worker-65/source/Cargo.toml
[INFO] crate git repo https://github.com/ydm/sudoku already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-65/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-65/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0855b10efea40870219ef3159612a91b6cf9f977868d5fb50e39fece4c2fd9e5
[INFO] running `Command { std: "docker" "start" "-a" "0855b10efea40870219ef3159612a91b6cf9f977868d5fb50e39fece4c2fd9e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0855b10efea40870219ef3159612a91b6cf9f977868d5fb50e39fece4c2fd9e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0855b10efea40870219ef3159612a91b6cf9f977868d5fb50e39fece4c2fd9e5", kill_on_drop: false }`
[INFO] [stdout] 0855b10efea40870219ef3159612a91b6cf9f977868d5fb50e39fece4c2fd9e5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-65/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-65/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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a9da29b877682393f5ce2261c87e735476495a5f21f8bcdf3c5bb0042256fcd9
[INFO] running `Command { std: "docker" "start" "-a" "a9da29b877682393f5ce2261c87e735476495a5f21f8bcdf3c5bb0042256fcd9", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling sudoku v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.70s
[INFO] running `Command { std: "docker" "inspect" "a9da29b877682393f5ce2261c87e735476495a5f21f8bcdf3c5bb0042256fcd9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a9da29b877682393f5ce2261c87e735476495a5f21f8bcdf3c5bb0042256fcd9", kill_on_drop: false }`
[INFO] [stdout] a9da29b877682393f5ce2261c87e735476495a5f21f8bcdf3c5bb0042256fcd9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-65/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-65/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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 459292b6bd17041bac138d8bab4d107eec8d3a8c0cee85cdc25e29cbdd14b5f3
[INFO] running `Command { std: "docker" "start" "-a" "459292b6bd17041bac138d8bab4d107eec8d3a8c0cee85cdc25e29cbdd14b5f3", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling sudoku v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Sudoku`
[INFO] [stdout]    --> src/rules.rs:134:36
[INFO] [stdout]     |
[INFO] [stdout] 134 |     use crate::structure::{Solver, Sudoku};
[INFO] [stdout]     |                                    ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 5.47s
[INFO] running `Command { std: "docker" "inspect" "459292b6bd17041bac138d8bab4d107eec8d3a8c0cee85cdc25e29cbdd14b5f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "459292b6bd17041bac138d8bab4d107eec8d3a8c0cee85cdc25e29cbdd14b5f3", kill_on_drop: false }`
[INFO] [stdout] 459292b6bd17041bac138d8bab4d107eec8d3a8c0cee85cdc25e29cbdd14b5f3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-65/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-65/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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 2b857ba0ffeab4ab917bec163a24d99bac64e37173e237a9d050eea11cf00761
[INFO] running `Command { std: "docker" "start" "-a" "2b857ba0ffeab4ab917bec163a24d99bac64e37173e237a9d050eea11cf00761", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `Sudoku`
[INFO] [stderr]    --> src/rules.rs:134:36
[INFO] [stderr]     |
[INFO] [stderr] 134 |     use crate::structure::{Solver, Sudoku};
[INFO] [stderr]     |                                    ^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `sudoku` (lib test) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/sudoku-a75aeb5dfd83e610)
[INFO] [stdout] 
[INFO] [stdout] running 14 tests
[INFO] [stdout] test structure::tests::test_cell_shut ... ok
[INFO] [stdout] test structure::tests::test_cell_shut_open ... ok
[INFO] [stdout] test structure::tests::test_cell_is_open ... ok
[INFO] [stdout] test rules::test::test_col_rule ... ok
[INFO] [stdout] test structure::tests::test_sudoku_display ... ok
[INFO] [stdout] test structure::tests::test_sudoku_parse ... ok
[INFO] [stdout] test rules::test::test_square_rule ... ok
[INFO] [stdout] test rules::test::test_row_rule ... ok
[INFO] [stdout] test structure::tests::test_cell_solve ... ok
[INFO] [stdout] test structure::tests::test_sudoku_solve ... ok
[INFO] [stdout] test rules::test::test_rules ... ok
[INFO] [stdout] test rules::test::test_single_opt_square_rule ... ok
[INFO] [stdout] test structure::tests::test_cell_is_open_panic2 - should panic ... ok
[INFO] [stdout] test structure::tests::test_cell_is_open_panic - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 14 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.04s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/sudoku-0edb4334afc29fce)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests sudoku
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "2b857ba0ffeab4ab917bec163a24d99bac64e37173e237a9d050eea11cf00761", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2b857ba0ffeab4ab917bec163a24d99bac64e37173e237a9d050eea11cf00761", kill_on_drop: false }`
[INFO] [stdout] 2b857ba0ffeab4ab917bec163a24d99bac64e37173e237a9d050eea11cf00761