[INFO] fetching crate html5ever 0.24.0...
[INFO] extracting crate html5ever 0.24.0 into work/ex/beta-1.37-6/sources/1.36.0/reg/html5ever/0.24.0
[INFO] extracting crate html5ever 0.24.0 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/html5ever/0.24.0
[INFO] validating manifest of html5ever-0.24.0 on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of html5ever-0.24.0 on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing html5ever-0.24.0
[INFO] removed 3 missing tests
[INFO] finished frobbing html5ever-0.24.0
[INFO] frobbed toml for html5ever-0.24.0 written to work/ex/beta-1.37-6/sources/1.36.0/reg/html5ever/0.24.0/Cargo.toml
[INFO] started frobbing html5ever-0.24.0
[INFO] removed 3 missing tests
[INFO] finished frobbing html5ever-0.24.0
[INFO] frobbed toml for html5ever-0.24.0 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/html5ever/0.24.0/Cargo.toml
[INFO] crate html5ever-0.24.0 already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing html5ever-0.24.0 against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-3/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/html5ever/0.24.0:/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=warn" "-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" "+beta-2019-07-23" "build" "--frozen"`
[INFO] [stdout] ebfdac050d11922e5587fbb3c4e961948404cdef26de96bdd2b2f3847741c4d1
[INFO] running `"docker" "start" "-a" "ebfdac050d11922e5587fbb3c4e961948404cdef26de96bdd2b2f3847741c4d1"`
[INFO] [stderr] warning: An explicit [[test]] section is specified in Cargo.toml which currently
[INFO] [stderr] disables Cargo from automatically inferring other test targets.
[INFO] [stderr] This inference behavior will change in the Rust 2018 edition and the following
[INFO] [stderr] files will be included as a test target:
[INFO] [stderr] 
[INFO] [stderr] * /opt/crater/workdir/tests/serializer.rs
[INFO] [stderr] * /opt/crater/workdir/tests/tokenizer.rs
[INFO] [stderr] * /opt/crater/workdir/tests/tree_builder.rs
[INFO] [stderr] 
[INFO] [stderr] This is likely to break cargo build or cargo test as these files may not be
[INFO] [stderr] ready to be compiled as a test target today. You can future-proof yourself
[INFO] [stderr] and disable this warning by adding `autotests = false` to your [package]
[INFO] [stderr] section. You may also move the files to a location where Cargo would not
[INFO] [stderr] automatically infer them to be a target, such as in subfolders.
[INFO] [stderr] 
[INFO] [stderr] For more information on this warning you can consult
[INFO] [stderr] https://github.com/rust-lang/cargo/issues/5330
[INFO] [stderr]    Compiling syn v0.15.40
[INFO] [stderr]    Compiling log v0.4.7
[INFO] [stderr]    Compiling serde_json v1.0.40
[INFO] [stderr]    Compiling string_cache v0.7.3
[INFO] [stderr]    Compiling serde_derive v1.0.97
[INFO] [stderr]    Compiling html5ever v0.24.0 (/opt/crater/workdir)
[INFO] [stderr]    Compiling markup5ever v0.9.0
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 50.11s
[INFO] running `"docker" "inspect" "ebfdac050d11922e5587fbb3c4e961948404cdef26de96bdd2b2f3847741c4d1"`
[INFO] running `"docker" "rm" "-f" "ebfdac050d11922e5587fbb3c4e961948404cdef26de96bdd2b2f3847741c4d1"`
[INFO] [stdout] ebfdac050d11922e5587fbb3c4e961948404cdef26de96bdd2b2f3847741c4d1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-3/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/html5ever/0.24.0:/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=warn" "-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" "+beta-2019-07-23" "test" "--frozen" "--no-run"`
[INFO] [stdout] 9f68b5001e7ac3a6b93b010d382de6a146d027a307e09962d1abc450e24a49a5
[INFO] running `"docker" "start" "-a" "9f68b5001e7ac3a6b93b010d382de6a146d027a307e09962d1abc450e24a49a5"`
[INFO] [stderr] warning: An explicit [[test]] section is specified in Cargo.toml which currently
[INFO] [stderr] disables Cargo from automatically inferring other test targets.
[INFO] [stderr] This inference behavior will change in the Rust 2018 edition and the following
[INFO] [stderr] files will be included as a test target:
[INFO] [stderr] 
[INFO] [stderr] * /opt/crater/workdir/tests/serializer.rs
[INFO] [stderr] * /opt/crater/workdir/tests/tokenizer.rs
[INFO] [stderr] * /opt/crater/workdir/tests/tree_builder.rs
[INFO] [stderr] 
[INFO] [stderr] This is likely to break cargo build or cargo test as these files may not be
[INFO] [stderr] ready to be compiled as a test target today. You can future-proof yourself
[INFO] [stderr] and disable this warning by adding `autotests = false` to your [package]
[INFO] [stderr] section. You may also move the files to a location where Cargo would not
[INFO] [stderr] automatically infer them to be a target, such as in subfolders.
[INFO] [stderr] 
[INFO] [stderr] For more information on this warning you can consult
[INFO] [stderr] https://github.com/rust-lang/cargo/issues/5330
[INFO] [stderr]    Compiling typed-arena v1.4.1
[INFO] [stderr]    Compiling crossbeam-epoch v0.7.1
[INFO] [stderr]    Compiling regex-automata v0.1.7
[INFO] [stderr]    Compiling rustc-test v0.3.0
[INFO] [stderr]    Compiling tinytemplate v1.0.2
[INFO] [stderr]    Compiling bstr v0.2.3
[INFO] [stderr]    Compiling crossbeam-deque v0.6.3
[INFO] [stderr]    Compiling rayon-core v1.5.0
[INFO] [stderr]    Compiling rayon v1.1.0
[INFO] [stderr]    Compiling csv v1.1.1
[INFO] [stderr]    Compiling criterion v0.2.11
[INFO] [stderr]    Compiling html5ever v0.24.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `prev_element`
[INFO] [stderr]    --> examples/print-tree-actions.rs:109:9
[INFO] [stderr]     |
[INFO] [stderr] 109 |         prev_element: &Self::Handle,
[INFO] [stderr]     |         ^^^^^^^^^^^^ help: consider prefixing with an underscore: `_prev_element`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 35.40s
[INFO] running `"docker" "inspect" "9f68b5001e7ac3a6b93b010d382de6a146d027a307e09962d1abc450e24a49a5"`
[INFO] running `"docker" "rm" "-f" "9f68b5001e7ac3a6b93b010d382de6a146d027a307e09962d1abc450e24a49a5"`
[INFO] [stdout] 9f68b5001e7ac3a6b93b010d382de6a146d027a307e09962d1abc450e24a49a5
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-3/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/html5ever/0.24.0:/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=warn" "-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" "+beta-2019-07-23" "test" "--frozen"`
[INFO] [stdout] b35a039e9737560e1410000d4f81f5cfa05cdce1c6b2247f39524d223c6515b5
[INFO] running `"docker" "start" "-a" "b35a039e9737560e1410000d4f81f5cfa05cdce1c6b2247f39524d223c6515b5"`
[INFO] [stderr] warning: An explicit [[test]] section is specified in Cargo.toml which currently
[INFO] [stderr] disables Cargo from automatically inferring other test targets.
[INFO] [stderr] This inference behavior will change in the Rust 2018 edition and the following
[INFO] [stderr] files will be included as a test target:
[INFO] [stderr] 
[INFO] [stderr] * /opt/crater/workdir/tests/serializer.rs
[INFO] [stderr] * /opt/crater/workdir/tests/tokenizer.rs
[INFO] [stderr] * /opt/crater/workdir/tests/tree_builder.rs
[INFO] [stderr] 
[INFO] [stderr] This is likely to break cargo build or cargo test as these files may not be
[INFO] [stderr] ready to be compiled as a test target today. You can future-proof yourself
[INFO] [stderr] and disable this warning by adding `autotests = false` to your [package]
[INFO] [stderr] section. You may also move the files to a location where Cargo would not
[INFO] [stderr] automatically infer them to be a target, such as in subfolders.
[INFO] [stderr] 
[INFO] [stderr] For more information on this warning you can consult
[INFO] [stderr] https://github.com/rust-lang/cargo/issues/5330
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/html5ever-e9132b9627a82dce
[INFO] [stdout] 
[INFO] [stdout] running 16 tests
[INFO] [stdout] test tokenizer::test::push_to_None_gives_singleton ... ok
[INFO] [stdout] test tokenizer::test::check_lines ... ok
[INFO] [stdout] test util::str::test::is_alnum_1 ... ok
[INFO] [stdout] test util::str::test::is_alnum_A ... ok
[INFO] [stdout] test tokenizer::test::push_to_empty_appends ... ok
[INFO] [stdout] test util::str::test::is_alnum_a ... ok
[INFO] [stdout] test tokenizer::test::push_to_nonempty_appends ... ok
[INFO] [stdout] test tree_builder::test::check_four_lines ... ok
[INFO] [stdout] test util::str::test::lower_letter_a_is_a ... ok
[INFO] [stdout] test util::str::test::lower_letter_A_is_a ... ok
[INFO] [stdout] test tokenizer::test::check_lines_with_new_line ... ok
[INFO] [stdout] test driver::tests::from_utf8 ... ok
[INFO] [stdout] test util::str::test::lower_letter_nonascii_is_None ... ok
[INFO] [stdout] test util::str::test::is_not_alnum_symbol ... ok
[INFO] [stdout] test util::str::test::lower_letter_symbol_is_None ... ok
[INFO] [stdout] test util::str::test::is_not_alnum_nonascii ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 16 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests html5ever
[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" "b35a039e9737560e1410000d4f81f5cfa05cdce1c6b2247f39524d223c6515b5"`
[INFO] running `"docker" "rm" "-f" "b35a039e9737560e1410000d4f81f5cfa05cdce1c6b2247f39524d223c6515b5"`
[INFO] [stdout] b35a039e9737560e1410000d4f81f5cfa05cdce1c6b2247f39524d223c6515b5