[INFO] fetching crate mt-dom 0.12.3...
[INFO] testing mt-dom-0.12.3 against 1.55.0 for beta-1.56-1
[INFO] extracting crate mt-dom 0.12.3 into /workspace/builds/worker-15/source
[INFO] validating manifest of crates.io crate mt-dom 0.12.3 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mt-dom 0.12.3
[INFO] finished tweaking crates.io crate mt-dom 0.12.3
[INFO] tweaked toml for crates.io crate mt-dom 0.12.3 written to /workspace/builds/worker-15/source/Cargo.toml
[INFO] crate crates.io crate mt-dom 0.12.3 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c45ffc18c20d55dd6207209c437a07c654b67ebb1db244c227a8eb1798b0c283
[INFO] running `Command { std: "docker" "start" "-a" "c45ffc18c20d55dd6207209c437a07c654b67ebb1db244c227a8eb1798b0c283", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c45ffc18c20d55dd6207209c437a07c654b67ebb1db244c227a8eb1798b0c283", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c45ffc18c20d55dd6207209c437a07c654b67ebb1db244c227a8eb1798b0c283", kill_on_drop: false }`
[INFO] [stdout] c45ffc18c20d55dd6207209c437a07c654b67ebb1db244c227a8eb1798b0c283
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d0bc6890caa0c13decd6b1c96def9f2c07fe505371b630fe02c25e3023038d96
[INFO] running `Command { std: "docker" "start" "-a" "d0bc6890caa0c13decd6b1c96def9f2c07fe505371b630fe02c25e3023038d96", kill_on_drop: false }`
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling mt-dom v0.12.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.66s
[INFO] running `Command { std: "docker" "inspect" "d0bc6890caa0c13decd6b1c96def9f2c07fe505371b630fe02c25e3023038d96", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d0bc6890caa0c13decd6b1c96def9f2c07fe505371b630fe02c25e3023038d96", kill_on_drop: false }`
[INFO] [stdout] d0bc6890caa0c13decd6b1c96def9f2c07fe505371b630fe02c25e3023038d96
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9a46b1707192fc5ab07641bc3f3322b2ca60170ff3b2d8e661d446cc5fb493cc
[INFO] running `Command { std: "docker" "start" "-a" "9a46b1707192fc5ab07641bc3f3322b2ca60170ff3b2d8e661d446cc5fb493cc", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.80
[INFO] [stderr]    Compiling regex-syntax v0.6.21
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling regex v1.4.2
[INFO] [stderr]    Compiling env_logger v0.7.1
[INFO] [stderr]    Compiling pretty_env_logger v0.4.0
[INFO] [stderr]    Compiling mt-dom v0.12.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 11.71s
[INFO] running `Command { std: "docker" "inspect" "9a46b1707192fc5ab07641bc3f3322b2ca60170ff3b2d8e661d446cc5fb493cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9a46b1707192fc5ab07641bc3f3322b2ca60170ff3b2d8e661d446cc5fb493cc", kill_on_drop: false }`
[INFO] [stdout] 9a46b1707192fc5ab07641bc3f3322b2ca60170ff3b2d8e661d446cc5fb493cc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 8eb076d26757ff1e062db82dd5abe80cb460aa65291ac41c335fa4a8a0a85a3e
[INFO] running `Command { std: "docker" "start" "-a" "8eb076d26757ff1e062db82dd5abe80cb460aa65291ac41c335fa4a8a0a85a3e", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stdout] running 11 tests
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/mt_dom-1ae39e6004f86df2)
[INFO] [stdout] test patch::tree_path::tests::should_find_node1 ... ok
[INFO] [stdout] test patch::tree_path::tests::should_find_none_in_00000 ... ok
[INFO] [stdout] test patch::tree_path::tests::should_find_node4 ... ok
[INFO] [stdout] test patch::tree_path::tests::should_find_none_in_013 ... ok
[INFO] [stdout] test patch::tree_path::tests::should_find_node3 ... ok
[INFO] [stdout] test patch::tree_path::tests::should_match_paths ... ok
[INFO] [stdout] test patch::tree_path::tests::should_find_root_node ... ok
[INFO] [stdout] test patch::tree_path::tests::should_find_none_in_007 ... ok
[INFO] [stdout] test patch::tree_path::tests::should_find_node6 ... ok
[INFO] [stdout] test patch::tree_path::tests::should_find_node5 ... ok
[INFO] [stdout] test patch::tree_path::tests::should_find_node2 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 11 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/diff_keyed.rs (/opt/rustwide/target/debug/deps/diff_keyed-6a8f896bfd2536cd)
[INFO] [stdout] 
[INFO] [stdout] running 21 tests
[INFO] [stdout] test key_2_inserted_at_the_end ... ok
[INFO] [stdout] test key1_removed_at_start_then_key2_has_additional_attributes ... ok
[INFO] [stdout] test key_2_inserted_in_the_middle ... ok
[INFO] [stdout] test key_2_removed_at_the_end ... ok
[INFO] [stdout] test deep_nested_key1_removed_at_start_then_key2_has_additional_attributes ... ok
[INFO] [stdout] test key_1_removed_at_start ... ok
[INFO] [stdout] test key_2_removed_at_the_middle ... ok
[INFO] [stdout] test key_2_inserted_at_start ... ok
[INFO] [stdout] test deep_nested_keyed_with_non_keyed_children ... ok
[INFO] [stdout] test deep_nested_more_children_key0_and_key1_removed_at_start_then_key2_has_additional_attributes ... ok
[INFO] [stdout] test keyed_element_not_reused ... ok
[INFO] [stdout] test there_are_2_exact_same_keys_in_the_new ... ok
[INFO] [stdout] test non_unique_keys_matched_at_old ... ok
[INFO] [stdout] test keyed_no_changed ... ok
[INFO] [stdout] test text_changed_in_mixed_keyed_and_non_keyed_elements ... ok
[INFO] [stdout] test remove_first ... ok
[INFO] [stdout] test test_append_at_sub_level ... ok
[INFO] [stdout] test text_changed_in_keyed_elements ... ok
[INFO] [stdout] test there_are_2_exact_same_keys_in_both_old_and_new ... ok
[INFO] [stdout] test there_are_2_exact_same_keys_in_the_old ... ok
[INFO] [stdout] test test12 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 21 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/diff_mixed.rs (/opt/rustwide/target/debug/deps/diff_mixed-9a9b9906dcf23c23)
[INFO] [stdout] 
[INFO] [stderr]      Running tests/diff_skip_and_replace.rs (/opt/rustwide/target/debug/deps/diff_skip_and_replace-be300e5cd76bba3c)
[INFO] [stdout] running 3 tests
[INFO] [stdout] test mixed_key_and_no_key_with_2_matched ... ok
[INFO] [stdout] test mixed_key_and_no_key_with_no_change ... ok
[INFO] [stdout] test mixed_key_and_no_key_with_misordered_2_matched ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test force_replace ... ok
[INFO] [stdout] test replace_true_in_attribute_must_replace_old_node_regardless ... ok
[INFO] [stdout] test force_skip ... ok
[INFO] [stdout] test skip_in_attribute ... ok
[INFO] [stderr]      Running tests/diff_tests.rs (/opt/rustwide/target/debug/deps/diff_tests-124f831a879db8b7)
[INFO] [stdout] test replace_and_skip_in_sub_nodes ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 15 tests
[INFO] [stdout] test inner_html_func_calls ... ok
[INFO] [stdout] test test_append_at_sub_level ... ok
[INFO] [stdout] test test_append ... ok
[INFO] [stdout] test test_append_more ... ok
[INFO] [stdout] test test_205 ... ok
[INFO] [stdout] test test_class_changed ... ok
[INFO] [stdout] test test_class_removed ... ok
[INFO] [stdout] test test_class_will_not_be_merged_on_different_calls ... ok
[INFO] [stdout] test test_multiple_calls_to_style ... ok
[INFO] [stdout] test test_no_changed ... ok
[INFO] [stdout] test test_replace_node ... ok
[INFO] [stdout] test test_replace_text_node ... ok
[INFO] [stdout] test test_replace_node_in_child ... ok
[INFO] [stdout] test test_attribute_order_changed ... ok
[INFO] [stdout] test text_node_changed ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 15 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/insert_patches.rs (/opt/rustwide/target/debug/deps/insert_patches-825d8e6f793096f0)
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test insert_on_deep_level_non_keyed_container ... ok
[INFO] [stdout] test insert_on_deep_multi_level_level_keyed ... ok
[INFO] [stdout] test insert_on_deep_level_keyed ... ok
[INFO] [stdout] test insert_on_deep_multi_level_keyed_non_keyed_keyed ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/massive_keyed.rs (/opt/rustwide/target/debug/deps/massive_keyed-a3be5aaecd8d9000)
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test text_changed ... ok
[INFO] [stdout] test key_inserted_at_middle ... ok
[INFO] [stdout] test text_changed_non_keyed ... ok
[INFO] [stdout] test insert_two_lines_at_start ... ok
[INFO] [stdout] test insert_one_line_at_start ... ok
[INFO] [stdout] test key_inserted_at_start ... ok
[INFO] [stdout] test wrapped_elements ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/rearranged_keyed_nodes.rs (/opt/rustwide/target/debug/deps/rearranged_keyed_nodes-e72c90b27ef8f74d)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test text_changed_non_keyed - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/test_comments.rs (/opt/rustwide/target/debug/deps/test_comments-240accf0a9b2df19)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test comment_nodes ... ok
[INFO] [stdout] test two_text_siblings_will_be_comment_separated ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/test_node_count.rs (/opt/rustwide/target/debug/deps/test_node_count-1de3369172244bad)
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test node_count3 ... ok
[INFO] [stdout] test node_count1 ... ok
[INFO] [stdout] test node_count5 ... ok
[INFO] [stdout] test node_count6 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests mt-dom
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test src/node/attribute.rs - node::attribute::attr_ns (line 86) ... ok
[INFO] [stdout] test src/node.rs - node::safe_html (line 403) ... ok
[INFO] [stdout] test src/node/attribute.rs - node::attribute::attr (line 69) ... ok
[INFO] [stdout] test src/node.rs - node::text (line 381) ... ok
[INFO] [stdout] test src/node.rs - node::element (line 324) ... ok
[INFO] [stdout] test src/node.rs - node::element_ns (line 351) ... ok
[INFO] [stdout] test src/diff.rs - diff::diff_with_key (line 25) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.93s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "8eb076d26757ff1e062db82dd5abe80cb460aa65291ac41c335fa4a8a0a85a3e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8eb076d26757ff1e062db82dd5abe80cb460aa65291ac41c335fa4a8a0a85a3e", kill_on_drop: false }`
[INFO] [stdout] 8eb076d26757ff1e062db82dd5abe80cb460aa65291ac41c335fa4a8a0a85a3e