[INFO] fetching crate fuzzcheck 0.9.0... [INFO] testing fuzzcheck-0.9.0 against try#722e1797249a965b6335aebd65d777f917e498f1 for pr-91031 [INFO] extracting crate fuzzcheck 0.9.0 into /workspace/builds/worker-42/source [INFO] validating manifest of crates.io crate fuzzcheck 0.9.0 on toolchain 722e1797249a965b6335aebd65d777f917e498f1 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate fuzzcheck 0.9.0 [INFO] finished tweaking crates.io crate fuzzcheck 0.9.0 [INFO] tweaked toml for crates.io crate fuzzcheck 0.9.0 written to /workspace/builds/worker-42/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded md5 v0.7.0 [INFO] [stderr] Downloaded overload v0.1.1 [INFO] [stderr] Downloaded fuzzcheck_common v0.9.0 [INFO] [stderr] Downloaded nu-ansi-term v0.39.0 [INFO] [stderr] Downloaded fuzzcheck_mutators_derive v0.9.0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-42/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-42/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 6b96d37c489c645ec67816ff34c0b3f3a515657421e650db07086a090c295f71 [INFO] running `Command { std: "docker" "start" "-a" "6b96d37c489c645ec67816ff34c0b3f3a515657421e650db07086a090c295f71", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "6b96d37c489c645ec67816ff34c0b3f3a515657421e650db07086a090c295f71", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6b96d37c489c645ec67816ff34c0b3f3a515657421e650db07086a090c295f71", kill_on_drop: false }` [INFO] [stdout] 6b96d37c489c645ec67816ff34c0b3f3a515657421e650db07086a090c295f71 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-42/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-42/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=forbid" "-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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] fcbc144e8ffedafc55ed077be98f427c7154d30461053f37bbde3f239754f2f7 [INFO] running `Command { std: "docker" "start" "-a" "fcbc144e8ffedafc55ed077be98f427c7154d30461053f37bbde3f239754f2f7", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.32 [INFO] [stderr] Compiling cc v1.0.72 [INFO] [stderr] Compiling syn v1.0.81 [INFO] [stderr] Compiling cfg-if v1.0.0 [INFO] [stderr] Compiling serde_derive v1.0.130 [INFO] [stderr] Compiling pkg-config v0.3.22 [INFO] [stderr] Compiling serde v1.0.130 [INFO] [stderr] Compiling memchr v2.4.1 [INFO] [stderr] Compiling ryu v1.0.5 [INFO] [stderr] Compiling version_check v0.9.3 [INFO] [stderr] Compiling serde_json v1.0.71 [INFO] [stderr] Compiling itoa v0.4.8 [INFO] [stderr] Compiling once_cell v1.8.0 [INFO] [stderr] Compiling overload v0.1.1 [INFO] [stderr] Compiling fastrand v1.5.0 [INFO] [stderr] Compiling md5 v0.7.0 [INFO] [stderr] Compiling getopts v0.2.21 [INFO] [stderr] Compiling crc32fast v1.2.1 [INFO] [stderr] Compiling getrandom v0.2.3 [INFO] [stderr] Compiling nu-ansi-term v0.39.0 [INFO] [stderr] Compiling fuzzcheck_common v0.9.0 [INFO] [stderr] Compiling ahash v0.7.6 [INFO] [stderr] Compiling object v0.27.1 [INFO] [stderr] Compiling quote v1.0.10 [INFO] [stderr] Compiling decent-synquote-alternative v0.4.0 [INFO] [stderr] Compiling libz-sys v1.1.3 [INFO] [stderr] Compiling fuzzcheck v0.9.0 (/opt/rustwide/workdir) [INFO] [stderr] Compiling fuzzcheck_mutators_derive v0.9.0 [INFO] [stderr] Compiling flate2 v1.0.22 [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 31.29s [INFO] running `Command { std: "docker" "inspect" "fcbc144e8ffedafc55ed077be98f427c7154d30461053f37bbde3f239754f2f7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "fcbc144e8ffedafc55ed077be98f427c7154d30461053f37bbde3f239754f2f7", kill_on_drop: false }` [INFO] [stdout] fcbc144e8ffedafc55ed077be98f427c7154d30461053f37bbde3f239754f2f7 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-42/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-42/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=forbid" "-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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 6759f21a5aab275483f44d30cb2300074ea08782e617b9c1bfaef8595b7ea26c [INFO] running `Command { std: "docker" "start" "-a" "6759f21a5aab275483f44d30cb2300074ea08782e617b9c1bfaef8595b7ea26c", kill_on_drop: false }` [INFO] [stderr] Compiling fuzzcheck v0.9.0 (/opt/rustwide/workdir) [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 6.11s [INFO] running `Command { std: "docker" "inspect" "6759f21a5aab275483f44d30cb2300074ea08782e617b9c1bfaef8595b7ea26c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6759f21a5aab275483f44d30cb2300074ea08782e617b9c1bfaef8595b7ea26c", kill_on_drop: false }` [INFO] [stdout] 6759f21a5aab275483f44d30cb2300074ea08782e617b9c1bfaef8595b7ea26c [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-42/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-42/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=forbid" "-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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 093f556bb279062d41306ef80b1ea40300d19070e61bb1d056fde947c95351f7 [INFO] running `Command { std: "docker" "start" "-a" "093f556bb279062d41306ef80b1ea40300d19070e61bb1d056fde947c95351f7", kill_on_drop: false }` [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.05s [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/fuzzcheck-5621334c1a8bfa12) [INFO] [stdout] [INFO] [stdout] running 13 tests [INFO] [stdout] test fenwick_tree::tests::test_basic_1 ... ok [INFO] [stdout] test mutators::test::test_size_to_cplxity ... ok [INFO] [stdout] test mutators::character_classes::tests::char_classes_test ... ok [INFO] [stdout] test mutators::fixed_len_vector::tests::test_constrained_length_mutator ... ok [INFO] [stdout] test sensors_and_pools::maximise_counter_value_pool::tests::test_basic_pool_1 ... ok [INFO] [stdout] test sensors_and_pools::most_n_diverse_pool::tests::test_most_n_diverse_pool ... ok [INFO] [stdout] test split_string::tests::test1 ... ok [INFO] [stdout] test mutators::vose_alias::tests::test_probabilities_2 ... ok [INFO] [stdout] test mutators::vose_alias::tests::test_probabilities_1 ... ok [INFO] [stdout] test sensors_and_pools::maximise_counter_value_pool::tests::test_basic_pool_2 ... ok [INFO] [stdout] test mutators::vector::tests::test_constrained_length_mutator_ordered_arbitrary ... ok [INFO] [stdout] test mutators::vector::tests::test_constrained_length_mutator_ordered_mutate ... ok [INFO] [stdout] test sensors_and_pools::simplest_to_activate_counter_pool::tests::property_test ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 13 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 4.82s [INFO] [stdout] [INFO] [stderr] Running tests/alternation_char_mutators.rs (/opt/rustwide/target/debug/deps/alternation_char_mutators-c88f230deaa31615) [INFO] [stdout] [INFO] [stdout] running 1 test [INFO] [stdout] test test_alternation_char ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 4.15s [INFO] [stdout] [INFO] [stderr] Running tests/char_mutators.rs (/opt/rustwide/target/debug/deps/char_mutators-335231adf5e30595) [INFO] [stdout] [INFO] [stdout] running 1 test [INFO] [stdout] test other_test_char_mutator ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s [INFO] [stdout] [INFO] [stderr] Running tests/constrained_integer.rs (/opt/rustwide/target/debug/deps/constrained_integer-56bcc755d346a795) [INFO] [stdout] [INFO] [stdout] running 1 test [INFO] [stdout] test test_arbitrary_constrained_signed_integer_8 ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stderr] Running tests/derived_enum.rs (/opt/rustwide/target/debug/deps/derived_enum-7036093856fba8d5) [INFO] [stdout] [INFO] [stdout] running 1 test [INFO] [stdout] test test_derived_struct ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 10.90s [INFO] [stdout] [INFO] [stderr] Running tests/derived_recursive_struct.rs (/opt/rustwide/target/debug/deps/derived_recursive_struct-d576c676a1f3ac2a) [INFO] [stdout] [INFO] [stdout] running 1 test [INFO] [stdout] test test_derived_struct ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 8.86s [INFO] [stdout] [INFO] [stderr] Running tests/derived_struct.rs (/opt/rustwide/target/debug/deps/derived_struct-b65177c9af95ef46) [INFO] [stdout] [INFO] [stdout] running 1 test [INFO] [stdout] test test_derived_struct ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 3.76s [INFO] [stdout] [INFO] [stderr] Running tests/grammar_based_mutators.rs (/opt/rustwide/target/debug/deps/grammar_based_mutators-26b2499a1be37361) [INFO] [stdout] [INFO] [stdout] running 1 test [INFO] [stdout] test test_grammar_based_ast_mutator ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 24.71s [INFO] [stdout] [INFO] [stderr] Running tests/lib.rs (/opt/rustwide/target/debug/deps/lib-510a8e74a5753258) [INFO] [stdout] [INFO] [stdout] running 14 tests [INFO] [stdout] test expansions::enums_with_generic_type_params::test_compile ... ok [INFO] [stdout] test expansions::enums_with_one_item_one_field::test::test_compile ... ok [INFO] [stdout] test expansions::enums_with_items_with_and_without_fields::test_compile ... ok [INFO] [stdout] test expansions::one_field_structs::test::test_compile ... ok [INFO] [stdout] test constrained_integer::test_arbitrary_constrained_signed_integer_8 ... ok [INFO] [stdout] test expansions::recursive_enum::test_compile ... ok [INFO] [stdout] test expansions::recursive_struct::test_compile ... ok [INFO] [stdout] test vector::test_vector_explore ... ok [INFO] [stdout] test char_mutators::other_test_char_mutator ... ok [INFO] [stdout] test vector::test_vector_mutator ... ok [INFO] [stdout] test alternation_char_mutators::test_alternation_char ... ok [INFO] [stdout] test option::test_option ... ok [INFO] [stdout] test derived_recursive_struct::test_derived_struct ... ok [INFO] [stdout] test grammar_based_mutators::test_grammar_based_ast_mutator ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 14 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 27.13s [INFO] [stdout] [INFO] [stderr] Running tests/option.rs (/opt/rustwide/target/debug/deps/option-72ee18b6b427d237) [INFO] [stdout] [INFO] [stdout] running 1 test [INFO] [stdout] test test_option ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 4.30s [INFO] [stdout] [INFO] [stderr] Running tests/vector.rs (/opt/rustwide/target/debug/deps/vector-95cd60b4f308c488) [INFO] [stdout] [INFO] [stdout] running 2 tests [INFO] [stdout] test test_vector_explore ... ok [INFO] [stdout] test test_vector_mutator ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.63s [INFO] [stdout] [INFO] [stderr] Doc-tests fuzzcheck [INFO] [stdout] [INFO] [stdout] running 27 tests [INFO] [stdout] test src/traits.rs - traits::Mutator (line 71) ... ignored [INFO] [stdout] test src/builder.rs - builder (line 22) - compile ... ok [INFO] [stdout] test src/code_coverage_sensor/mod.rs - code_coverage_sensor::CodeCoverageSensor (line 24) - compile ... ok [INFO] [stdout] test src/builder.rs - builder::CodeCoverageSensorAndPoolBuilder (line 682) - compile ... ok [INFO] [stdout] test src/builder.rs - builder (line 14) - compile ... ok [INFO] [stdout] test src/builder.rs - builder (line 36) - compile ... ok [INFO] [stdout] test src/builder.rs - builder::FuzzerBuilder1::mutator (line 318) ... ok [INFO] [stdout] test src/mutators/recursive.rs - mutators::recursive::RecursiveMutator (line 72) ... ok [INFO] [stdout] test src/serializers/mod.rs - serializers::StringSerializer::new (line 76) ... ok [INFO] [stdout] test src/builder.rs - builder::FuzzerBuilder1::mutator (line 340) ... ok [INFO] [stdout] test src/builder.rs - builder::FuzzerBuilder1::mutator (line 325) ... ok [INFO] [stdout] test src/lib.rs - make_mutator (line 115) ... ok [INFO] [stdout] test src/lib.rs - make_mutator (line 144) ... ok [INFO] [stdout] test src/lib.rs - make_mutator (line 171) ... ok [INFO] [stdout] test src/lib.rs - DefaultMutator (line 98) ... FAILED [INFO] [stdout] test src/mutators/recursive.rs - mutators::recursive::RecursiveMutator (line 82) ... FAILED [INFO] [stdout] test src/mutators/recursive.rs - mutators::recursive (line 9) ... FAILED [INFO] [stdout] test src/mutators/alternation.rs - mutators::alternation::AlternationMutator (line 6) ... ok [INFO] [stdout] test src/mutators/dictionary.rs - mutators::dictionary::DictionaryMutator (line 4) ... ok [INFO] [stdout] test src/mutators/grammar/mod.rs - mutators::grammar (line 19) ... ok [INFO] [stdout] test src/lib.rs - DefaultMutator (line 85) ... ok [INFO] [stdout] test src/mutators/vose_alias.rs - mutators::vose_alias::VoseAlias (line 10) ... ok [INFO] [stdout] test src/traits.rs - traits::Mutator (line 105) ... ok [INFO] [stdout] test src/sensors_and_pools/and_sensor_and_pool.rs - sensors_and_pools::and_sensor_and_pool (line 8) ... ok [INFO] [stdout] test src/sensors_and_pools/array_of_counters.rs - sensors_and_pools::array_of_counters::ArrayOfCounters (line 6) ... ok [INFO] [stdout] test src/serializers/mod.rs - serializers::ByteSerializer::new (line 31) ... ok [INFO] [stdout] test src/builder.rs - builder::FuzzerBuilder2::serializer (line 379) ... ok [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] [INFO] [stdout] ---- src/lib.rs - DefaultMutator (line 98) stdout ---- [INFO] [stdout] Couldn't compile the test. [INFO] [stdout] ---- src/mutators/recursive.rs - mutators::recursive::RecursiveMutator (line 82) stdout ---- [INFO] [stdout] Couldn't compile the test. [INFO] [stdout] ---- src/mutators/recursive.rs - mutators::recursive (line 9) stdout ---- [INFO] [stdout] Couldn't compile the test. [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] src/lib.rs - DefaultMutator (line 98) [INFO] [stdout] src/mutators/recursive.rs - mutators::recursive (line 9) [INFO] [stdout] src/mutators/recursive.rs - mutators::recursive::RecursiveMutator (line 82) [INFO] [stdout] [INFO] [stdout] test result: FAILED. 23 passed; 3 failed; 1 ignored; 0 measured; 0 filtered out; finished in 3.79s [INFO] [stdout] [INFO] [stderr] error: test failed, to rerun pass '--doc' [INFO] running `Command { std: "docker" "inspect" "093f556bb279062d41306ef80b1ea40300d19070e61bb1d056fde947c95351f7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "093f556bb279062d41306ef80b1ea40300d19070e61bb1d056fde947c95351f7", kill_on_drop: false }` [INFO] [stdout] 093f556bb279062d41306ef80b1ea40300d19070e61bb1d056fde947c95351f7