[INFO] crate vegas-lattice 0.3.0 is already in cache
[INFO] extracting crate vegas-lattice 0.3.0 into work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/reg/vegas-lattice/0.3.0
[INFO] extracting crate vegas-lattice 0.3.0 into work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/reg/vegas-lattice/0.3.0
[INFO] validating manifest of vegas-lattice-0.3.0 on toolchain master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of vegas-lattice-0.3.0 on toolchain try#7fea0229842e79db1159ea58ad9a653b288efee9
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing vegas-lattice-0.3.0
[INFO] finished frobbing vegas-lattice-0.3.0
[INFO] frobbed toml for vegas-lattice-0.3.0 written to work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/reg/vegas-lattice/0.3.0/Cargo.toml
[INFO] started frobbing vegas-lattice-0.3.0
[INFO] finished frobbing vegas-lattice-0.3.0
[INFO] frobbed toml for vegas-lattice-0.3.0 written to work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/reg/vegas-lattice/0.3.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing vegas-lattice-0.3.0 against master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54 for pr-57967
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-2/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/reg/vegas-lattice/0.3.0:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "build" "--frozen"`
[INFO] [stdout] 88fae68040afbb79493b3ff96e1519fb58fd9d7f1eaf31a679d106b293770993
[INFO] running `"docker" "start" "-a" "88fae68040afbb79493b3ff96e1519fb58fd9d7f1eaf31a679d106b293770993"`
[INFO] [stderr]    Compiling png v0.9.0
[INFO] [stderr]    Compiling docopt v0.8.3
[INFO] [stderr]    Compiling image v0.15.0
[INFO] [stderr]    Compiling vegas-lattice v0.3.0 (/opt/crater/workdir)
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]   --> src/main.rs:62:21
[INFO] [stderr]    |
[INFO] [stderr] 62 |             match e.cause() {
[INFO] [stderr]    |                     ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(deprecated)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 24.73s
[INFO] running `"docker" "inspect" "88fae68040afbb79493b3ff96e1519fb58fd9d7f1eaf31a679d106b293770993"`
[INFO] running `"docker" "rm" "-f" "88fae68040afbb79493b3ff96e1519fb58fd9d7f1eaf31a679d106b293770993"`
[INFO] [stdout] 88fae68040afbb79493b3ff96e1519fb58fd9d7f1eaf31a679d106b293770993
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-2/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/reg/vegas-lattice/0.3.0:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "test" "--frozen" "--no-run"`
[INFO] [stdout] e7a8fa18caf87dd60b4b5a1800f9139888e94c960da92080933157aaa1ca8850
[INFO] running `"docker" "start" "-a" "e7a8fa18caf87dd60b4b5a1800f9139888e94c960da92080933157aaa1ca8850"`
[INFO] [stderr]    Compiling vegas-lattice v0.3.0 (/opt/crater/workdir)
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]   --> src/main.rs:62:21
[INFO] [stderr]    |
[INFO] [stderr] 62 |             match e.cause() {
[INFO] [stderr]    |                     ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(deprecated)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.95s
[INFO] running `"docker" "inspect" "e7a8fa18caf87dd60b4b5a1800f9139888e94c960da92080933157aaa1ca8850"`
[INFO] running `"docker" "rm" "-f" "e7a8fa18caf87dd60b4b5a1800f9139888e94c960da92080933157aaa1ca8850"`
[INFO] [stdout] e7a8fa18caf87dd60b4b5a1800f9139888e94c960da92080933157aaa1ca8850
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-2/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/reg/vegas-lattice/0.3.0:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "test" "--frozen"`
[INFO] [stdout] 8ce64dcbaf39c14b9ee232ea699e81146338c5b339cc9f92f4e1077d6f519fc8
[INFO] running `"docker" "start" "-a" "8ce64dcbaf39c14b9ee232ea699e81146338c5b339cc9f92f4e1077d6f519fc8"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.12s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/vegas_lattice-f96dfdd0fbd69e54
[INFO] [stdout] 
[INFO] [stdout] running 11 tests
[INFO] [stdout] test lattice::test::drop_example_actually_dropping ... ok
[INFO] [stdout] test lattice::test::single_lattice_expansion_1d ... ok
[INFO] [stdout] test lattice::test::drop_example ... ok
[INFO] [stdout] test lattice::test::double_lattice_expansion_1d ... ok
[INFO] [stdout] test site::test::site_will_take_optional_tags ... ok
[INFO] [stdout] test site::test::vertex_site_can_be_read_from_str ... ok
[INFO] [stdout] test vertex::test::vertex_will_take_optional_tags ... ok
[INFO] [stdout] test lattice::test::vertex_will_take_optional_tags ... ok
[INFO] [stdout] test vertex::test::reindexing_kinda_works ... ok
[INFO] [stdout] test lattice::test::single_lattice_expansion_1d_vertices ... ok
[INFO] [stdout] test lattice::test::single_lattice_expansion_1d_negative_vertices ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 11 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/vegas_lattice-92ad429a0796e120
[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
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/test_itertools_understanding-8b42a750e156bf4e
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test cartesian_products_by_hand ... ok
[INFO] [stdout] test itertools_over_a_two_by_two_lattice ... ok
[INFO] [stdout] test triple_cartesian_products_by_hand ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/test_lattice_components-6c381defdae5739b
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test lattice_will_fail_for_inconsistent_size ... ok
[INFO] [stdout] test lattice_example ... ok
[INFO] [stdout] test lattice_will_fail_for_inconsistent_vertices ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/test_serde_understanding-eee9c74c7c076115
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test optional_values_can_be_left_out ... ok
[INFO] [stdout] test it_nests_structures ... ok
[INFO] [stdout] test it_expands_vectors ... ok
[INFO] [stdout] test it_errs_if_data_is_wrong ... ok
[INFO] [stdout] test it_works_with_simple_data ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests vegas-lattice
[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
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "8ce64dcbaf39c14b9ee232ea699e81146338c5b339cc9f92f4e1077d6f519fc8"`
[INFO] running `"docker" "rm" "-f" "8ce64dcbaf39c14b9ee232ea699e81146338c5b339cc9f92f4e1077d6f519fc8"`
[INFO] [stdout] 8ce64dcbaf39c14b9ee232ea699e81146338c5b339cc9f92f4e1077d6f519fc8