Dec 07 18:31:55.974 INFO testing dlx-0.1.0 against try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468 for pr-56514
Dec 07 18:31:55.974 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-0/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-56514/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/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 +6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468-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 07 18:31:56.327 INFO [stdout] cd4a3cc3b6bffd8bb4c464619e473026163397b8a85d564454df15955c865ee3
Dec 07 18:31:56.328 INFO running `"docker" "start" "-a" "cd4a3cc3b6bffd8bb4c464619e473026163397b8a85d564454df15955c865ee3"`
Dec 07 18:31:56.705 INFO [stderr] usermod: no changes
Dec 07 18:31:56.744 INFO [stderr]    Compiling dlx v0.1.0 (/source)
Dec 07 18:31:57.527 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.80s
Dec 07 18:31:57.534 INFO [stderr] su: No module specific data is present
Dec 07 18:31:58.040 INFO running `"docker" "inspect" "cd4a3cc3b6bffd8bb4c464619e473026163397b8a85d564454df15955c865ee3"`
Dec 07 18:31:58.362 INFO running `"docker" "rm" "-f" "cd4a3cc3b6bffd8bb4c464619e473026163397b8a85d564454df15955c865ee3"`
Dec 07 18:31:58.652 INFO [stdout] cd4a3cc3b6bffd8bb4c464619e473026163397b8a85d564454df15955c865ee3
Dec 07 18:31:58.660 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-0/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-56514/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/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 +6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468-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 07 18:31:59.074 INFO [stdout] decb339cb2dbf47530ac13e18b20b2ce381741290ccb92d8be872224d2edb7d8
Dec 07 18:31:59.078 INFO running `"docker" "start" "-a" "decb339cb2dbf47530ac13e18b20b2ce381741290ccb92d8be872224d2edb7d8"`
Dec 07 18:32:00.004 INFO [stderr] usermod: no changes
Dec 07 18:32:00.072 INFO [stderr]    Compiling dlx v0.1.0 (/source)
Dec 07 18:32:00.680 INFO [stderr] warning: doc comment not used by rustdoc
Dec 07 18:32:00.680 INFO [stderr]   --> examples/sudoku.rs:91:9
Dec 07 18:32:00.680 INFO [stderr]    |
Dec 07 18:32:00.680 INFO [stderr] 91 |         /// Convert the rows from the exact cover matrix into a
Dec 07 18:32:00.680 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 07 18:32:00.680 INFO [stderr]    |
Dec 07 18:32:00.680 INFO [stderr]    = note: #[warn(unused_doc_comments)] on by default
Dec 07 18:32:00.680 INFO [stderr] 
Dec 07 18:32:01.348 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.31s
Dec 07 18:32:01.352 INFO [stderr] su: No module specific data is present
Dec 07 18:32:01.718 INFO running `"docker" "inspect" "decb339cb2dbf47530ac13e18b20b2ce381741290ccb92d8be872224d2edb7d8"`
Dec 07 18:32:01.910 INFO running `"docker" "rm" "-f" "decb339cb2dbf47530ac13e18b20b2ce381741290ccb92d8be872224d2edb7d8"`
Dec 07 18:32:02.040 INFO [stdout] decb339cb2dbf47530ac13e18b20b2ce381741290ccb92d8be872224d2edb7d8
Dec 07 18:32:02.046 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-0/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-56514/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/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 +6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468-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 07 18:32:02.339 INFO [stdout] a2a1dd914bab4fd2a4f8493b95a047c5ad5874675f26517a1e638addf66cf8d0
Dec 07 18:32:02.346 INFO running `"docker" "start" "-a" "a2a1dd914bab4fd2a4f8493b95a047c5ad5874675f26517a1e638addf66cf8d0"`
Dec 07 18:32:02.894 INFO [stderr] usermod: no changes
Dec 07 18:32:02.927 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
Dec 07 18:32:02.927 INFO [stderr]      Running /target/debug/deps/dlx-029e7c88f79e0b06
Dec 07 18:32:02.929 INFO [stderr]    Doc-tests dlx
Dec 07 18:32:02.929 INFO [stdout] 
Dec 07 18:32:02.929 INFO [stdout] running 0 tests
Dec 07 18:32:02.929 INFO [stdout] 
Dec 07 18:32:02.929 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 07 18:32:02.929 INFO [stdout] 
Dec 07 18:32:03.455 INFO [stdout] 
Dec 07 18:32:03.455 INFO [stdout] running 0 tests
Dec 07 18:32:03.456 INFO [stdout] 
Dec 07 18:32:03.456 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 07 18:32:03.456 INFO [stdout] 
Dec 07 18:32:03.465 INFO [stderr] su: No module specific data is present
Dec 07 18:32:03.845 INFO running `"docker" "inspect" "a2a1dd914bab4fd2a4f8493b95a047c5ad5874675f26517a1e638addf66cf8d0"`
Dec 07 18:32:03.950 INFO running `"docker" "rm" "-f" "a2a1dd914bab4fd2a4f8493b95a047c5ad5874675f26517a1e638addf66cf8d0"`
Dec 07 18:32:04.064 INFO [stdout] a2a1dd914bab4fd2a4f8493b95a047c5ad5874675f26517a1e638addf66cf8d0