Dec 15 16:46:30.460 INFO testing dlx-0.1.0 against try#aa49d8ef14939ddec0e34b346b60174a5673d48f for pr-56550
Dec 15 16:46:30.460 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-3/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-56550/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +aa49d8ef14939ddec0e34b346b60174a5673d48f-alt build --frozen" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 15 16:46:30.651 INFO [stdout] f64ed9109485f4628e651816627571053cfdaa073a88bf202ce5f510957d8422
Dec 15 16:46:30.653 INFO running `"docker" "start" "-a" "f64ed9109485f4628e651816627571053cfdaa073a88bf202ce5f510957d8422"`
Dec 15 16:46:31.234 INFO [stderr] usermod: no changes
Dec 15 16:46:31.292 INFO [stderr]    Compiling dlx v0.1.0 (/source)
Dec 15 16:46:32.536 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.27s
Dec 15 16:46:32.539 INFO [stderr] su: No module specific data is present
Dec 15 16:46:33.093 INFO running `"docker" "inspect" "f64ed9109485f4628e651816627571053cfdaa073a88bf202ce5f510957d8422"`
Dec 15 16:46:33.451 INFO running `"docker" "rm" "-f" "f64ed9109485f4628e651816627571053cfdaa073a88bf202ce5f510957d8422"`
Dec 15 16:46:33.819 INFO [stdout] f64ed9109485f4628e651816627571053cfdaa073a88bf202ce5f510957d8422
Dec 15 16:46:33.821 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-3/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-56550/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +aa49d8ef14939ddec0e34b346b60174a5673d48f-alt test --frozen --no-run" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 15 16:46:34.305 INFO [stdout] d542a63a15708acf210334fc160c39ea47a54a0ba7fce166ffd97ff5bae8b2ec
Dec 15 16:46:34.313 INFO running `"docker" "start" "-a" "d542a63a15708acf210334fc160c39ea47a54a0ba7fce166ffd97ff5bae8b2ec"`
Dec 15 16:46:35.617 INFO [stderr] usermod: no changes
Dec 15 16:46:35.651 INFO [stderr]    Compiling dlx v0.1.0 (/source)
Dec 15 16:46:36.353 INFO [stderr] warning: doc comment not used by rustdoc
Dec 15 16:46:36.353 INFO [stderr]   --> examples/sudoku.rs:91:9
Dec 15 16:46:36.353 INFO [stderr]    |
Dec 15 16:46:36.353 INFO [stderr] 91 |         /// Convert the rows from the exact cover matrix into a
Dec 15 16:46:36.353 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 15 16:46:36.353 INFO [stderr]    |
Dec 15 16:46:36.353 INFO [stderr]    = note: #[warn(unused_doc_comments)] on by default
Dec 15 16:46:36.353 INFO [stderr] 
Dec 15 16:46:36.795 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.18s
Dec 15 16:46:36.802 INFO [stderr] su: No module specific data is present
Dec 15 16:46:37.094 INFO running `"docker" "inspect" "d542a63a15708acf210334fc160c39ea47a54a0ba7fce166ffd97ff5bae8b2ec"`
Dec 15 16:46:37.207 INFO running `"docker" "rm" "-f" "d542a63a15708acf210334fc160c39ea47a54a0ba7fce166ffd97ff5bae8b2ec"`
Dec 15 16:46:37.299 INFO [stdout] d542a63a15708acf210334fc160c39ea47a54a0ba7fce166ffd97ff5bae8b2ec
Dec 15 16:46:37.299 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-3/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-56550/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +aa49d8ef14939ddec0e34b346b60174a5673d48f-alt test --frozen" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 15 16:46:37.511 INFO [stdout] dc8f1feb3a23127be131bc27fce4231d6ed78e13ffac3b636ee55ef95d9525c0
Dec 15 16:46:37.513 INFO running `"docker" "start" "-a" "dc8f1feb3a23127be131bc27fce4231d6ed78e13ffac3b636ee55ef95d9525c0"`
Dec 15 16:46:38.235 INFO [stderr] usermod: no changes
Dec 15 16:46:38.263 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
Dec 15 16:46:38.264 INFO [stderr]      Running /target/debug/deps/dlx-fb85bf10846a5116
Dec 15 16:46:38.268 INFO [stdout] 
Dec 15 16:46:38.268 INFO [stdout] running 0 tests
Dec 15 16:46:38.268 INFO [stdout] 
Dec 15 16:46:38.268 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 15 16:46:38.268 INFO [stdout] 
Dec 15 16:46:38.268 INFO [stderr]    Doc-tests dlx
Dec 15 16:46:39.157 INFO [stdout] 
Dec 15 16:46:39.157 INFO [stdout] running 0 tests
Dec 15 16:46:39.157 INFO [stdout] 
Dec 15 16:46:39.157 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 15 16:46:39.157 INFO [stdout] 
Dec 15 16:46:39.167 INFO [stderr] su: No module specific data is present
Dec 15 16:46:39.452 INFO running `"docker" "inspect" "dc8f1feb3a23127be131bc27fce4231d6ed78e13ffac3b636ee55ef95d9525c0"`
Dec 15 16:46:39.643 INFO running `"docker" "rm" "-f" "dc8f1feb3a23127be131bc27fce4231d6ed78e13ffac3b636ee55ef95d9525c0"`
Dec 15 16:46:39.765 INFO [stdout] dc8f1feb3a23127be131bc27fce4231d6ed78e13ffac3b636ee55ef95d9525c0