[INFO] fetching crate regex-automata 0.1.9...
[INFO] testing regex-automata-0.1.9 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate regex-automata 0.1.9 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate regex-automata 0.1.9 on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate regex-automata 0.1.9
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate regex-automata 0.1.9
[INFO] tweaked toml for crates.io crate regex-automata 0.1.9 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded fst v0.4.5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e973baaea626e892d86ea0f0e9390d6c4d316b1ab15896f7e5cd5d2f222cf0cb
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "e973baaea626e892d86ea0f0e9390d6c4d316b1ab15896f7e5cd5d2f222cf0cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e973baaea626e892d86ea0f0e9390d6c4d316b1ab15896f7e5cd5d2f222cf0cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e973baaea626e892d86ea0f0e9390d6c4d316b1ab15896f7e5cd5d2f222cf0cb", kill_on_drop: false }`
[INFO] [stdout] e973baaea626e892d86ea0f0e9390d6c4d316b1ab15896f7e5cd5d2f222cf0cb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2988f567ab9743b9c9d2b04bf5abfc5df7707b02810d16fb4b62bd42bfd0426a
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "2988f567ab9743b9c9d2b04bf5abfc5df7707b02810d16fb4b62bd42bfd0426a", kill_on_drop: false }`
[INFO] [stderr]    Compiling regex-syntax v0.6.21
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling regex-automata v0.1.9 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]    --> src/determinize.rs:151:13
[INFO] [stdout]     |
[INFO] [stdout] 151 |             mem::replace(&mut self.scratch_nfa_states, state.nfa_states);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [optimized + debuginfo] target(s) in 14.82s
[INFO] running `Command { std: "docker" "inspect" "2988f567ab9743b9c9d2b04bf5abfc5df7707b02810d16fb4b62bd42bfd0426a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2988f567ab9743b9c9d2b04bf5abfc5df7707b02810d16fb4b62bd42bfd0426a", kill_on_drop: false }`
[INFO] [stdout] 2988f567ab9743b9c9d2b04bf5abfc5df7707b02810d16fb4b62bd42bfd0426a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e23ee4183db4c8eae4778c45141c93db32114089696736b4ac17d43ba5a616fa
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "e23ee4183db4c8eae4778c45141c93db32114089696736b4ac17d43ba5a616fa", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling serde v1.0.118
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]    --> src/determinize.rs:151:13
[INFO] [stdout]     |
[INFO] [stdout] 151 |             mem::replace(&mut self.scratch_nfa_states, state.nfa_states);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling thread_local v1.0.1
[INFO] [stderr]    Compiling aho-corasick v0.7.15
[INFO] [stderr]    Compiling bstr v0.2.14
[INFO] [stderr]    Compiling regex v1.4.2
[INFO] [stderr]    Compiling serde_bytes v0.11.5
[INFO] [stderr]    Compiling toml v0.4.10
[INFO] [stderr]    Compiling regex-automata v0.1.9 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]    --> src/determinize.rs:151:13
[INFO] [stdout]     |
[INFO] [stdout] 151 |             mem::replace(&mut self.scratch_nfa_states, state.nfa_states);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [optimized + debuginfo] target(s) in 1m 15s
[INFO] running `Command { std: "docker" "inspect" "e23ee4183db4c8eae4778c45141c93db32114089696736b4ac17d43ba5a616fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e23ee4183db4c8eae4778c45141c93db32114089696736b4ac17d43ba5a616fa", kill_on_drop: false }`
[INFO] [stdout] e23ee4183db4c8eae4778c45141c93db32114089696736b4ac17d43ba5a616fa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 3abbe1e01a14294b93f7e3b476fbadbcc0f29bd6169c7b478fb9146c9507469c
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "3abbe1e01a14294b93f7e3b476fbadbcc0f29bd6169c7b478fb9146c9507469c", kill_on_drop: false }`
[INFO] [stderr] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stderr]    --> src/determinize.rs:151:13
[INFO] [stderr]     |
[INFO] [stderr] 151 |             mem::replace(&mut self.scratch_nfa_states, state.nfa_states);
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stderr]    --> src/determinize.rs:151:13
[INFO] [stderr]     |
[INFO] [stderr] 151 |             mem::replace(&mut self.scratch_nfa_states, state.nfa_states);
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [optimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/regex_automata-23f23056f7424a07
[INFO] [stdout] 
[INFO] [stdout] running 17 tests
[INFO] [stdout] test classes::tests::full_byte_classes ... ok
[INFO] [stdout] test nfa::compiler::tests::compile_alternation ... ok
[INFO] [stdout] test classes::tests::byte_classes ... ok
[INFO] [stdout] test dense_imp::tests::errors_when_premultiply_would_overflow ... ok
[INFO] [stdout] test nfa::tests::never_match ... ok
[INFO] [stdout] test nfa::compiler::tests::compile_empty ... ok
[INFO] [stdout] test nfa::range_trie::tests::splits ... ok
[INFO] [stdout] test nfa::tests::always_match ... ok
[INFO] [stdout] test nfa::compiler::tests::compile_repetition ... ok
[INFO] [stdout] test nfa::range_trie::tests::no_splits ... ok
[INFO] [stdout] test nfa::compiler::tests::compile_group ... ok
[INFO] [stdout] test nfa::compiler::tests::compile_literal ... ok
[INFO] [stdout] test nfa::compiler::tests::compile_unanchored_prefix ... ok
[INFO] [stdout] test nfa::compiler::tests::errors ... ok
[INFO] [stdout] test nfa::compiler::tests::compile_class ... ok
[INFO] [stdout] test dense_imp::tests::errors_when_converting_to_smaller_dfa ... ok
[INFO] [stdout] test dense_imp::tests::errors_when_determinization_would_overflow ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 17 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.28s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/default-f49fbc1f79918d44
[INFO] [stdout] 
[INFO] [stdout] running 16 tests
[INFO] [stdout] test regression::minimize_sets_correct_match_states ... ok
[INFO] [stdout] test suite::serialization_roundtrip ... ok
[INFO] [stdout] test suite::sparse_serialization_roundtrip ... ok
[INFO] [stdout] test suite::unminimized_byte_class ... ok
[INFO] [stdout] test suite::unminimized_standard ... ok
[INFO] [stdout] test suite::unminimized_premultiply_byte_class ... ok
[INFO] [stdout] test suite::unminimized_premultiply ... ok
[INFO] [stdout] test suite::sparse_unminimized_standard ... ok
[INFO] [stdout] test suite::unminimized_standard_no_nfa_shrink ... ok
[INFO] [stdout] test suite::u16 ... ok
[INFO] [stdout] test suite::minimized_byte_class ... ok
[INFO] [stdout] test suite::sparse_u16 ... ok
[INFO] [stdout] test suite::minimized_premultiply_byte_class ... ok
[INFO] [stdout] test suite::minimized_standard ... ok
[INFO] [stdout] test suite::minimized_standard_no_nfa_shrink ... ok
[INFO] [stdout] test suite::minimized_premultiply ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 16 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 44.11s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests regex-automata
[INFO] [stdout] 
[INFO] [stdout] running 29 tests
[INFO] [stdout] test src/dfa.rs - dfa::DFA::find (line 156) ... ok
[INFO] [stdout] test src/dense.rs - dense_imp::DenseDFA<Vec<usize>, usize>::new (line 204) ... ok
[INFO] [stdout] test src/dense.rs - dense_imp::DenseDFA (line 122) ... ok
[INFO] [stdout] test src/dense.rs - dense_imp::DenseDFA<T, S>::to_sparse (line 320) ... ok
[INFO] [stdout] test src/dfa.rs - dfa::DFA::rfind (line 190) ... ok
[INFO] [stdout] test src/dfa.rs - dfa::DFA::shortest_match (line 107) ... ok
[INFO] [stdout] test src/lib.rs - (line 50) ... ok
[INFO] [stdout] test src/lib.rs - (line 31) ... ok
[INFO] [stdout] test src/dense.rs - dense_imp::DenseDFA<Vec<S>, S>::empty (line 226) ... ok
[INFO] [stdout] test src/dense.rs - dense_imp::DenseDFA<T, S>::to_sparse_sized (line 343) ... ok
[INFO] [stdout] test src/regex.rs - regex::Regex (line 38) ... ok
[INFO] [stdout] test src/dfa.rs - dfa::DFA::is_match (line 81) ... ok
[INFO] [stdout] test src/regex.rs - regex::Regex::new (line 129) ... ok
[INFO] [stdout] test src/lib.rs - (line 64) ... ok
[INFO] [stdout] test src/lib.rs - (line 88) ... ok
[INFO] [stdout] test src/dense.rs - dense_imp::DenseDFA<&'a [S], S>::from_bytes (line 505) ... ok
[INFO] [stdout] test src/regex.rs - regex::Regex<D>::find (line 238) ... ok
[INFO] [stdout] test src/lib.rs - (line 141) ... ok
[INFO] [stdout] test src/regex.rs - regex::Regex<D>::shortest_match (line 204) ... ok
[INFO] [stdout] test src/regex.rs - regex::Regex<D>::from_dfas (line 358) ... ok
[INFO] [stdout] test src/regex.rs - regex::Regex<D>::from_dfas (line 342) ... ok
[INFO] [stdout] test src/regex.rs - regex::Regex<D>::find_iter (line 316) ... ok
[INFO] [stdout] test src/sparse.rs - sparse_imp::SparseDFA (line 89) ... ok
[INFO] [stdout] test src/regex.rs - regex::Regex<D>::is_match (line 182) ... ok
[INFO] [stdout] test src/regex.rs - regex::Regex<SparseDFA<Vec<u8>, usize>>::new_sparse (line 157) ... ok
[INFO] [stdout] test src/sparse.rs - sparse_imp::SparseDFA<Vec<u8>, usize>::new (line 150) ... ok
[INFO] [stdout] test src/sparse.rs - sparse_imp::SparseDFA<&'a [u8], S>::from_bytes (line 396) ... ok
[INFO] [stdout] test src/sparse.rs - sparse_imp::SparseDFA<Vec<u8>, S>::empty (line 174) ... ok
[INFO] [stdout] test src/regex.rs - regex::Regex<D>::from_dfas (line 375) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 29 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 7.95s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "3abbe1e01a14294b93f7e3b476fbadbcc0f29bd6169c7b478fb9146c9507469c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3abbe1e01a14294b93f7e3b476fbadbcc0f29bd6169c7b478fb9146c9507469c", kill_on_drop: false }`
[INFO] [stdout] 3abbe1e01a14294b93f7e3b476fbadbcc0f29bd6169c7b478fb9146c9507469c