[INFO] crate lamcal 0.4.0 is already in cache [INFO] extracting crate lamcal 0.4.0 into work/ex/beta-1.37-6/sources/1.36.0/reg/lamcal/0.4.0 [INFO] extracting crate lamcal 0.4.0 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/lamcal/0.4.0 [INFO] validating manifest of lamcal-0.4.0 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 lamcal-0.4.0 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 lamcal-0.4.0 [INFO] finished frobbing lamcal-0.4.0 [INFO] frobbed toml for lamcal-0.4.0 written to work/ex/beta-1.37-6/sources/1.36.0/reg/lamcal/0.4.0/Cargo.toml [INFO] started frobbing lamcal-0.4.0 [INFO] finished frobbing lamcal-0.4.0 [INFO] frobbed toml for lamcal-0.4.0 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/lamcal/0.4.0/Cargo.toml [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] testing lamcal-0.4.0 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-6/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/lamcal/0.4.0:/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] 5f5bf6b92ae4de781fe45bbc168ed644d46554ee93c33f7beb45c063c3a2f3f4 [INFO] running `"docker" "start" "-a" "5f5bf6b92ae4de781fe45bbc168ed644d46554ee93c33f7beb45c063c3a2f3f4"` [INFO] [stderr] Compiling lamcal v0.4.0 (/opt/crater/workdir) [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/reduction/mod.rs:734:25 [INFO] [stderr] | [INFO] [stderr] 734 | if let Some(mut expand_with) = maybe_expand_with { [INFO] [stderr] | ----^^^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_mut)] on by default [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 2.88s [INFO] running `"docker" "inspect" "5f5bf6b92ae4de781fe45bbc168ed644d46554ee93c33f7beb45c063c3a2f3f4"` [INFO] running `"docker" "rm" "-f" "5f5bf6b92ae4de781fe45bbc168ed644d46554ee93c33f7beb45c063c3a2f3f4"` [INFO] [stdout] 5f5bf6b92ae4de781fe45bbc168ed644d46554ee93c33f7beb45c063c3a2f3f4 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-6/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/lamcal/0.4.0:/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] 96ae9938c2f8760d299d3d3c55f2ac049093c43e70c495eae68e4d9a374c2df7 [INFO] running `"docker" "start" "-a" "96ae9938c2f8760d299d3d3c55f2ac049093c43e70c495eae68e4d9a374c2df7"` [INFO] [stderr] Compiling proptest v0.8.7 [INFO] [stderr] Compiling lamcal v0.4.0 (/opt/crater/workdir) [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/reduction/mod.rs:734:25 [INFO] [stderr] | [INFO] [stderr] 734 | if let Some(mut expand_with) = maybe_expand_with { [INFO] [stderr] | ----^^^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_mut)] on by default [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 34.81s [INFO] running `"docker" "inspect" "96ae9938c2f8760d299d3d3c55f2ac049093c43e70c495eae68e4d9a374c2df7"` [INFO] running `"docker" "rm" "-f" "96ae9938c2f8760d299d3d3c55f2ac049093c43e70c495eae68e4d9a374c2df7"` [INFO] [stdout] 96ae9938c2f8760d299d3d3c55f2ac049093c43e70c495eae68e4d9a374c2df7 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-6/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/lamcal/0.4.0:/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] fb783ff42a1e5ef15e455037a1eb8af55b527898e3a6cc81279c70f81698c2c8 [INFO] running `"docker" "start" "-a" "fb783ff42a1e5ef15e455037a1eb8af55b527898e3a6cc81279c70f81698c2c8"` [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.18s [INFO] [stderr] Running /opt/crater/target/debug/deps/lamcal-b650f5b12f38832f [INFO] [stdout] [INFO] [stdout] running 169 tests [INFO] [stdout] test church_encoded::numeral::tests::from_unsigned_integer::into_one ... ok [INFO] [stdout] test church_encoded::numeral::tests::from_unsigned_integer::into_zero ... ok [INFO] [stdout] test church_encoded::numeral::tests::from_unsigned_integer::into_two ... ok [INFO] [stdout] test church_encoded::numeral::tests::from_unsigned_integer::into_three ... ok [INFO] [stdout] test church_encoded::numeral::tests::from_unsigned_integer::u128_two ... ok [INFO] [stdout] test inspect::tests::bitand_stop::no_and_no_returns_no ... ok [INFO] [stdout] test church_encoded::numeral::tests::from_unsigned_integer::u16_two ... ok [INFO] [stdout] test church_encoded::numeral::tests::from_unsigned_integer::u64_two ... ok [INFO] [stdout] test church_encoded::numeral::tests::from_unsigned_integer::u32_two ... ok [INFO] [stdout] test inspect::tests::bitand_stop::yes_and_no_returns_no ... ok [INFO] [stdout] test inspect::tests::bitand_stop::yes_and_yes_returns_yes ... ok [INFO] [stdout] test inspect::tests::bitor_stop::no_and_no_returns_no ... ok [INFO] [stdout] test inspect::tests::bitor_stop::no_and_yes_returns_yes ... ok [INFO] [stdout] test inspect::tests::bitor_stop::yes_and_yes_returns_yes ... ok [INFO] [stdout] test inspect::tests::bitor_stop::yes_and_no_returns_yes ... ok [INFO] [stdout] test church_encoded::numeral::tests::from_unsigned_integer::u8_two ... ok [INFO] [stdout] test inspect::tests::bitand_stop::no_and_yes_returns_no ... ok [INFO] [stdout] test inspect::tests::trace::reduction_of_expression_1 ... ok [INFO] [stdout] test parser::tests::parse::ignores_whitespace_between_dot_and_abstraction_body ... ok [INFO] [stdout] test parser::tests::parse::ignores_whitespace_between_bound_variable_and_dot ... ok [INFO] [stdout] test parser::tests::parse::ignores_whitespace_between_expression_and_closing_paren ... ok [INFO] [stdout] test parser::tests::parse::ignores_whitespace_between_closing_paren_and_expr2 ... ok [INFO] [stdout] test parser::tests::parse::ignores_whitespace_between_lambda_and_bound_variable ... ok [INFO] [stdout] test parser::tests::parse::parse_abstraction_of_abstraction_with_application_in_body ... ok [INFO] [stdout] test parser::tests::parse::ignores_whitespace_between_opening_paren_and_expression ... ok [INFO] [stdout] test parser::tests::parse::parse_complex_example1 ... ok [INFO] [stdout] test parser::tests::parse::parse_application_ignoring_leading_whitespace ... ok [INFO] [stdout] test parser::tests::parse::parse_application_ignoring_trailing_whitespace ... ok [INFO] [stdout] test parser::tests::parse::parse_identity_combinator ... ok [INFO] [stdout] test parser::tests::parse::parse_variable ... ok [INFO] [stdout] test parser::tests::parse::parse_sequence_of_two_variables ... ok [INFO] [stdout] test parser::tests::parse::parse_variable_surrounded_by_whitespace ... ok [INFO] [stdout] test parser::tests::token::display_format_a_body_separator_token ... ok [INFO] [stdout] test parser::tests::token::display_format_a_lambda_token ... ok [INFO] [stdout] test parser::tests::parse_tokens::parse_empty_token_list ... ok [INFO] [stdout] test parser::tests::token::display_format_a_right_paren_token ... ok [INFO] [stdout] test parser::tests::token::display_format_a_left_paren_token ... ok [INFO] [stdout] test parser::tests::parse::parse_sequence_of_three_variables ... ok [INFO] [stdout] test parser::tests::token::display_format_an_identifier_token ... ok [INFO] [stdout] test parser::tests::tokenize::a_sequence_of_two_identifiers ... ok [INFO] [stdout] test parser::tests::tokenize::a_sequence_of_three_identifiers ... ok [INFO] [stdout] test parser::tests::tokenize::a_sequence_of_two_identifiers_with_parens ... ok [INFO] [stdout] test parser::tests::tokenize::an_identifier_before_lambda_no_whitespace ... ok [INFO] [stdout] test parser::tests::tokenize::an_abstraction_with_a_sequence_of_identifiers_in_the_body ... ok [INFO] [stdout] test parser::tests::tokenize::empty_string ... ok [INFO] [stdout] test parser::tests::tokenize::an_identifier_before_left_paren_no_whitespace ... ok [INFO] [stdout] test parser::tests::tokenize::an_identifier_bound_to_an_abstraction ... ok [INFO] [stdout] test parser::tests::tokenize::identifier ... ok [INFO] [stdout] test parser::tests::tokenize::identifier_with_an_invalid_character_in_the_middle_or_end ... FAILED [INFO] [stdout] test parser::tests::tokenize::identifier_surrounded_by_whitespace ... ok [INFO] [stdout] test reduction::tests::alpha::does_not_rename_free_x_in_all_bodies ... ok [INFO] [stdout] test reduction::tests::alpha::does_not_rename_free_x_in_body ... ok [INFO] [stdout] test reduction::tests::alpha::renames_bound_x_in_second_level_lambda_abstraction ... ok [INFO] [stdout] test reduction::tests::alpha::renames_bound_x_to_x2_when_x1_is_free_variable_in_body ... ok [INFO] [stdout] test reduction::tests::alpha::renames_outer_bound_x_and_shadowing_inner_bound_x ... ok [INFO] [stdout] test parser::tests::tokenize::lambda_with_bound_identifier ... ok [INFO] [stdout] test reduction::tests::alpha_rename_enumerate::appends_digit_1_if_name_does_not_end_with_digit ... ok [INFO] [stdout] test reduction::tests::alpha_rename_prime::appends_another_tick_symbol_if_name_ends_with_tick ... ok [INFO] [stdout] test parser::tests::tokenize::identifier_starting_with_an_invalid_character ... ok [INFO] [stdout] test reduction::tests::apply::applying_abstraction_of_abstraction ... ok [INFO] [stdout] test reduction::tests::apply::applying_abstraction_of_abstraction_with_same_bound_var ... ok [INFO] [stdout] test reduction::tests::apply::applying_constant_returns_constant ... ok [INFO] [stdout] test reduction::tests::alpha_rename_enumerate::increases_number_by_1_if_name_ends_with_number ... ok [INFO] [stdout] test reduction::tests::apply::applying_identity_returns_rhs ... ok [INFO] [stdout] test reduction::tests::apply::applying_simple_abstraction ... ok [INFO] [stdout] test reduction::tests::apply::applying_replication_returns_application_of_rhs ... ok [INFO] [stdout] test reduction::tests::apply::applying_variable_returns_the_variable ... ok [INFO] [stdout] test reduction::tests::beta_applicative_order::application_of_free_variable ... ok [INFO] [stdout] test reduction::tests::beta_applicative_order::complex_expr1 ... ok [INFO] [stdout] test reduction::tests::beta_applicative_order::application_of_free_variables_2 ... ok [INFO] [stdout] test reduction::tests::beta_applicative_order::complex_expr2 ... ok [INFO] [stdout] test reduction::tests::beta_applicative_order::complex_expr4 ... ok [INFO] [stdout] test reduction::tests::beta_applicative_order::constant_y ... ok [INFO] [stdout] test reduction::tests::beta_applicative_order::identity_x ... ok [INFO] [stdout] test reduction::tests::beta_applicative_order::complex_expr3 ... ok [INFO] [stdout] test reduction::tests::beta_call_by_name::application_of_free_variable ... ok [INFO] [stdout] test reduction::tests::beta_call_by_name::application_of_free_variables_2 ... ok [INFO] [stdout] test reduction::tests::beta_call_by_name::complex_expr1 ... ok [INFO] [stdout] test reduction::tests::beta_call_by_name::complex_expr2 ... ok [INFO] [stdout] test reduction::tests::beta_call_by_name::complex_expr3 ... ok [INFO] [stdout] test reduction::tests::beta_call_by_name::constant_y ... ok [INFO] [stdout] test reduction::tests::beta_call_by_name::identity_x ... ok [INFO] [stdout] test reduction::tests::alpha_rename_prime::appends_tick_symbol ... ok [INFO] [stdout] test reduction::tests::beta_call_by_value::application_of_free_variable ... ok [INFO] [stdout] test reduction::tests::beta_call_by_value::application_of_free_variables_2 ... ok [INFO] [stdout] test reduction::tests::beta_call_by_value::complex_expr1 ... ok [INFO] [stdout] test reduction::tests::beta_call_by_value::complex_expr2 ... ok [INFO] [stdout] test reduction::tests::beta_call_by_value::complex_expr3 ... ok [INFO] [stdout] test reduction::tests::beta_call_by_value::complex_expr4 ... ok [INFO] [stdout] test reduction::tests::beta_call_by_value::complex_expr5 ... ok [INFO] [stdout] test reduction::tests::beta_call_by_value::constant_y ... ok [INFO] [stdout] test reduction::tests::beta_call_by_value::identity_x ... ok [INFO] [stdout] test inspect::tests::limit::calling_inspect_any_times_below_the_limit_returns_dont_stop ... ok [INFO] [stdout] test reduction::tests::beta_head_spine_order::application_of_free_variable ... ok [INFO] [stdout] test reduction::tests::beta_head_spine_order::application_of_free_variables_2 ... ok [INFO] [stdout] test reduction::tests::beta_head_spine_order::complex_expr1 ... ok [INFO] [stdout] test reduction::tests::beta_head_spine_order::complex_expr2 ... ok [INFO] [stdout] test reduction::tests::beta_head_spine_order::complex_expr3 ... ok [INFO] [stdout] test reduction::tests::beta_head_spine_order::constant_y ... ok [INFO] [stdout] test reduction::tests::beta_head_spine_order::identity_x ... ok [INFO] [stdout] test inspect::tests::limit::calling_inspect_when_the_limit_is_reached_it_returns_stop ... ok [INFO] [stdout] test reduction::tests::beta_hybrid_applicative_order::application_of_free_variable ... ok [INFO] [stdout] test reduction::tests::beta_hybrid_applicative_order::application_of_free_variables_2 ... ok [INFO] [stdout] test reduction::tests::beta_hybrid_applicative_order::complex_expr1 ... ok [INFO] [stdout] test reduction::tests::beta_hybrid_applicative_order::complex_expr2 ... ok [INFO] [stdout] test reduction::tests::beta_hybrid_applicative_order::complex_expr3 ... ok [INFO] [stdout] test reduction::tests::beta_hybrid_applicative_order::constant_y ... ok [INFO] [stdout] test reduction::tests::beta_hybrid_applicative_order::identity_x ... ok [INFO] [stdout] test inspect::tests::collect::calling_inspect_with_any_term_always_returns_dont_stop ... ok [INFO] [stdout] test reduction::tests::beta_hybrid_normal_order::application_of_free_variable ... ok [INFO] [stdout] test reduction::tests::beta_hybrid_normal_order::application_of_free_variables_2 ... ok [INFO] [stdout] test reduction::tests::beta_hybrid_normal_order::complex_expr1 ... ok [INFO] [stdout] test reduction::tests::beta_hybrid_normal_order::complex_expr2 ... ok [INFO] [stdout] test reduction::tests::beta_hybrid_normal_order::complex_expr3 ... ok [INFO] [stdout] test reduction::tests::beta_hybrid_normal_order::complex_expr4 ... ok [INFO] [stdout] test reduction::tests::beta_hybrid_normal_order::complex_expr5 ... ok [INFO] [stdout] test reduction::tests::beta_hybrid_normal_order::constant_y ... ok [INFO] [stdout] test reduction::tests::beta_hybrid_normal_order::identity_x ... ok [INFO] [stdout] test inspect::tests::trace::calling_inspect_with_any_term_always_returns_dont_stop ... ok [INFO] [stdout] test reduction::tests::beta_normal_order::application_of_free_variable ... ok [INFO] [stdout] test reduction::tests::beta_normal_order::application_of_free_variables_2 ... ok [INFO] [stdout] test reduction::tests::beta_normal_order::complex_expr1 ... ok [INFO] [stdout] test reduction::tests::beta_normal_order::complex_expr2 ... ok [INFO] [stdout] test reduction::tests::beta_normal_order::complex_expr3 ... ok [INFO] [stdout] test reduction::tests::beta_normal_order::constant_y ... ok [INFO] [stdout] test reduction::tests::beta_normal_order::identity_x ... ok [INFO] [stdout] test parser::tests::parse::result_of_any_term_to_string_is_parsable_as_term ... ok [INFO] [stdout] test reduction::tests::beta_reduction_properties::test_for_beta_normal_on_abstraction ... ok [INFO] [stdout] test reduction::tests::beta_reduction_properties::test_for_beta_normal_on_application_in_abstraction_body ... ok [INFO] [stdout] test reduction::tests::beta_reduction_properties::test_for_beta_normal_on_application_with_redex_on_left_hand_side ... ok [INFO] [stdout] test reduction::tests::beta_reduction_properties::test_for_beta_normal_on_application_with_redex_on_right_hand_side ... ok [INFO] [stdout] test reduction::tests::beta_reduction_properties::test_for_beta_normal_on_identity_application ... ok [INFO] [stdout] test reduction::tests::beta_reduction_properties::test_for_beta_normal_on_redex_in_abstraction_body ... ok [INFO] [stdout] test reduction::tests::beta_reduction_properties::test_for_beta_normal_on_variable ... ok [INFO] [stdout] test reduction::tests::beta_reduction_properties::test_for_beta_redex_on_abstraction ... ok [INFO] [stdout] test reduction::tests::beta_reduction_properties::test_for_beta_redex_on_application_in_abstraction_body ... ok [INFO] [stdout] test reduction::tests::beta_reduction_properties::test_for_beta_redex_on_application_with_redex_on_left_hand_side ... ok [INFO] [stdout] test reduction::tests::beta_reduction_properties::test_for_beta_redex_on_application_with_redex_on_right_hand_side ... ok [INFO] [stdout] test reduction::tests::beta_reduction_properties::test_for_beta_redex_on_identity_application ... ok [INFO] [stdout] test reduction::tests::beta_reduction_properties::test_for_beta_redex_on_redex_in_abstraction_body ... ok [INFO] [stdout] test reduction::tests::beta_reduction_properties::test_for_beta_redex_on_variable ... ok [INFO] [stdout] test term::tests::app_macro::app_with_2_terms ... ok [INFO] [stdout] test term::tests::app_macro::app_with_3_terms ... ok [INFO] [stdout] test reduction::tests::beta_call_by_value::reduce_any_expr_compared_to_recursive_impl ... ok [INFO] [stdout] test term::tests::term::display_string_of_a_variable ... ok [INFO] [stdout] test term::tests::term::display_string_of_an_abstraction_with_variable_in_body ... ok [INFO] [stdout] test term::tests::term::display_string_of_an_application ... ok [INFO] [stdout] test term::tests::term::display_string_of_an_application_omitting_outermost_parens ... ok [INFO] [stdout] test reduction::tests::beta_call_by_name::reduce_any_expr_compared_to_recursive_impl ... ok [INFO] [stdout] test term::tests::term::free_vars_in_function_application_contains_one_from_lhs ... ok [INFO] [stdout] test term::tests::term::free_vars_in_function_application_contains_one_from_rhs ... ok [INFO] [stdout] test term::tests::term::free_vars_in_function_application_of_lambda_and_var_contains_two ... ok [INFO] [stdout] test term::tests::term::free_vars_in_function_application_of_two_closed_lambdas_contains_none ... ok [INFO] [stdout] test term::tests::term::free_vars_in_function_application_of_two_lambdas_contains_three ... ok [INFO] [stdout] test term::tests::term::free_vars_in_function_application_of_vars_contains_two ... ok [INFO] [stdout] test term::tests::term::free_vars_in_lambda_abstraction_contains_none ... ok [INFO] [stdout] test term::tests::term::free_vars_in_lambda_abstraction_contains_one ... ok [INFO] [stdout] test term::tests::term::free_vars_in_lambda_abstraction_contains_two ... ok [INFO] [stdout] test term::tests::term::free_vars_in_lambda_abstraction_on_third_level_contains_one ... ok [INFO] [stdout] test term::tests::term::free_vars_in_lambda_abstraction_within_lambda_abstraction_contains_one ... ok [INFO] [stdout] test term::tests::term::free_vars_in_variable ... ok [INFO] [stdout] test term::tests::term::display_string_of_an_application_omitting_parens_in_abtraction_body ... ok [INFO] [stdout] test term::tests::var_name::display_string_is_the_variable_name ... ok [INFO] [stdout] test term::tests::term::display_string_of_an_application_of_an_application_must_not_omit_parens ... ok [INFO] [stdout] test reduction::tests::beta_applicative_order::reduce_any_expr_compared_to_recursive_impl ... ok [INFO] [stdout] test reduction::tests::beta_head_spine_order::reduce_any_expr_compared_to_recursive_impl ... ok [INFO] [stdout] test reduction::tests::beta_hybrid_applicative_order::reduce_any_expr_compared_to_recursive_impl ... ok [INFO] [stdout] test reduction::tests::beta_normal_order::reduce_any_expr_compared_to_recursive_impl ... ok [INFO] [stderr] error: test failed, to rerun pass '--lib' [INFO] [stdout] test reduction::tests::beta_hybrid_normal_order::reduce_any_expr_compared_to_recursive_impl ... ok [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] [INFO] [stdout] ---- parser::tests::tokenize::identifier_with_an_invalid_character_in_the_middle_or_end stdout ---- [INFO] [stdout] proptest: failed to append to /opt/crater/workdir/proptest-regressions/parser/tests.txt: Read-only file system (os error 30) [INFO] [stdout] thread 'parser::tests::tokenize::identifier_with_an_invalid_character_in_the_middle_or_end' panicked at 'Test failed: assertion failed: `(left == right)` (left: `Err(ParseError { kind: InvalidCharacter, position: CharPosition { line: 1, column: 1, newline: false }, found: "\u{116b8}", expected: "any unicode alphanumeric character or one of \'ฮป\', `\\`, \'.\', \'(\', \')\'", hint: None })`, right: `Err(ParseError { kind: InvalidCharacter, position: CharPosition { line: 1, column: 2, newline: false }, found: "๐ŸŒ€", expected: "any unicode alphanumeric character or one of \'_\', \'\\\'\'", hint: None })`) at src/parser/tests.rs:116; minimal failing input: start = "\u{116b8}", _invalid = "เซฐ", invalid2 = "๐ŸŒ€", end = "" [INFO] [stdout] successes: 2 [INFO] [stdout] local rejects: 0 [INFO] [stdout] global rejects: 0 [INFO] [stdout] ', src/parser/tests.rs:72:5 [INFO] [stdout] stack backtrace: [INFO] [stdout] 0: 0x555ab511d5fb - backtrace::backtrace::libunwind::trace::h5dfa5d4c5feed6dc [INFO] [stdout] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.29/src/backtrace/libunwind.rs:88 [INFO] [stdout] 1: 0x555ab511d5fb - backtrace::backtrace::trace_unsynchronized::hb731fe64f3fa469f [INFO] [stdout] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.29/src/backtrace/mod.rs:66 [INFO] [stdout] 2: 0x555ab511d5fb - std::sys_common::backtrace::_print::hf4fd45fe7ae4a250 [INFO] [stdout] at src/libstd/sys_common/backtrace.rs:47 [INFO] [stdout] 3: 0x555ab511d5fb - std::sys_common::backtrace::print::h31646c3786c57441 [INFO] [stdout] at src/libstd/sys_common/backtrace.rs:36 [INFO] [stdout] 4: 0x555ab511d5fb - std::panicking::default_hook::{{closure}}::hda785e768c746ae7 [INFO] [stdout] at src/libstd/panicking.rs:200 [INFO] [stdout] 5: 0x555ab511d26a - std::panicking::default_hook::h0c4b76f338614ef1 [INFO] [stdout] at src/libstd/panicking.rs:211 [INFO] [stdout] 6: 0x555ab511dd70 - std::panicking::rust_panic_with_hook::h096dff2cb12b67ce [INFO] [stdout] at src/libstd/panicking.rs:477 [INFO] [stdout] 7: 0x555ab511d8f2 - std::panicking::continue_panic_fmt::h0046167652be99a6 [INFO] [stdout] at src/libstd/panicking.rs:384 [INFO] [stdout] 8: 0x555ab511d83f - std::panicking::begin_panic_fmt::he65a2e8ff19d8ae0 [INFO] [stdout] at src/libstd/panicking.rs:339 [INFO] [stdout] 9: 0x555ab4eb8826 - lamcal::parser::tests::tokenize::identifier_with_an_invalid_character_in_the_middle_or_end::hb1258c9825d7da7f [INFO] [stdout] at /opt/crater/workdir/<::proptest::sugar::proptest macros>:18 [INFO] [stdout] 10: 0x555ab4eb831a - lamcal::parser::tests::tokenize::identifier_with_an_invalid_character_in_the_middle_or_end::{{closure}}::he4f62b76b03168a8 [INFO] [stdout] at /opt/crater/workdir/<::proptest::sugar::proptest macros>:15 [INFO] [stdout] 11: 0x555ab4ed484e - core::ops::function::FnOnce::call_once::h2f1556f6923e2141 [INFO] [stdout] at /rustc/61d1607e0f6a18bb4897d6f9b10abeac9e11eb8e/src/libcore/ops/function.rs:231 [INFO] [stdout] 12: 0x555ab4f2027f - as core::ops::function::FnOnce>::call_once::h9568fda2c3b99042 [INFO] [stdout] at /rustc/61d1607e0f6a18bb4897d6f9b10abeac9e11eb8e/src/liballoc/boxed.rs:746 [INFO] [stdout] 13: 0x555ab51253ca - __rust_maybe_catch_panic [INFO] [stdout] at src/libpanic_unwind/lib.rs:82 [INFO] [stdout] 14: 0x555ab4f3a878 - std::panicking::try::h4b4c6c15836266eb [INFO] [stdout] at /rustc/61d1607e0f6a18bb4897d6f9b10abeac9e11eb8e/src/libstd/panicking.rs:275 [INFO] [stdout] 15: 0x555ab4f3a878 - std::panic::catch_unwind::h133691b514d0224c [INFO] [stdout] at /rustc/61d1607e0f6a18bb4897d6f9b10abeac9e11eb8e/src/libstd/panic.rs:394 [INFO] [stdout] 16: 0x555ab4f3a878 - test::run_test::run_test_inner::{{closure}}::h41355d9f207d71fe [INFO] [stdout] at src/libtest/lib.rs:1466 [INFO] [stdout] 17: 0x555ab4f156f5 - std::sys_common::backtrace::__rust_begin_short_backtrace::h7c86e4012abd2d40 [INFO] [stdout] at /rustc/61d1607e0f6a18bb4897d6f9b10abeac9e11eb8e/src/libstd/sys_common/backtrace.rs:77 [INFO] [stdout] 18: 0x555ab4f19875 - std::thread::Builder::spawn_unchecked::{{closure}}::{{closure}}::h2ba9d55fec0ea776 [INFO] [stdout] at /rustc/61d1607e0f6a18bb4897d6f9b10abeac9e11eb8e/src/libstd/thread/mod.rs:470 [INFO] [stdout] 19: 0x555ab4f19875 - as core::ops::function::FnOnce<()>>::call_once::hdf89f4d89df3dda3 [INFO] [stdout] at /rustc/61d1607e0f6a18bb4897d6f9b10abeac9e11eb8e/src/libstd/panic.rs:315 [INFO] [stdout] 20: 0x555ab4f19875 - std::panicking::try::do_call::h59b39c89384b7a2f [INFO] [stdout] at /rustc/61d1607e0f6a18bb4897d6f9b10abeac9e11eb8e/src/libstd/panicking.rs:296 [INFO] [stdout] 21: 0x555ab51253ca - __rust_maybe_catch_panic [INFO] [stdout] at src/libpanic_unwind/lib.rs:82 [INFO] [stdout] 22: 0x555ab4f19eb2 - std::panicking::try::h9fff34be50f16431 [INFO] [stdout] at /rustc/61d1607e0f6a18bb4897d6f9b10abeac9e11eb8e/src/libstd/panicking.rs:275 [INFO] [stdout] 23: 0x555ab4f19eb2 - std::panic::catch_unwind::h7551856ff7c5e12a [INFO] [stdout] at /rustc/61d1607e0f6a18bb4897d6f9b10abeac9e11eb8e/src/libstd/panic.rs:394 [INFO] [stdout] 24: 0x555ab4f19eb2 - std::thread::Builder::spawn_unchecked::{{closure}}::hafea48c774d796e7 [INFO] [stdout] at /rustc/61d1607e0f6a18bb4897d6f9b10abeac9e11eb8e/src/libstd/thread/mod.rs:469 [INFO] [stdout] 25: 0x555ab4f19eb2 - core::ops::function::FnOnce::call_once{{vtable.shim}}::he5fe7b84ce5a3830 [INFO] [stdout] at /rustc/61d1607e0f6a18bb4897d6f9b10abeac9e11eb8e/src/libcore/ops/function.rs:231 [INFO] [stdout] 26: 0x555ab5110fdf - as core::ops::function::FnOnce>::call_once::h55ef432b72ff7a0b [INFO] [stdout] at /rustc/61d1607e0f6a18bb4897d6f9b10abeac9e11eb8e/src/liballoc/boxed.rs:746 [INFO] [stdout] 27: 0x555ab5124800 - as core::ops::function::FnOnce>::call_once::h9294a5138530eae1 [INFO] [stdout] at /rustc/61d1607e0f6a18bb4897d6f9b10abeac9e11eb8e/src/liballoc/boxed.rs:746 [INFO] [stdout] 28: 0x555ab5124800 - std::sys_common::thread::start_thread::h0d2733dd32c3723c [INFO] [stdout] at src/libstd/sys_common/thread.rs:13 [INFO] [stdout] 29: 0x555ab5124800 - std::sys::unix::thread::Thread::new::thread_start::hf1005dad6ba8f2b1 [INFO] [stdout] at src/libstd/sys/unix/thread.rs:79 [INFO] [stdout] 30: 0x7f99ad8d84a4 - start_thread [INFO] [stdout] 31: 0x7f99ad403d0f - __clone [INFO] [stdout] 32: 0x0 - [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] parser::tests::tokenize::identifier_with_an_invalid_character_in_the_middle_or_end [INFO] [stdout] [INFO] [stdout] test result: FAILED. 168 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out [INFO] [stdout] [INFO] running `"docker" "inspect" "fb783ff42a1e5ef15e455037a1eb8af55b527898e3a6cc81279c70f81698c2c8"` [INFO] running `"docker" "rm" "-f" "fb783ff42a1e5ef15e455037a1eb8af55b527898e3a6cc81279c70f81698c2c8"` [INFO] [stdout] fb783ff42a1e5ef15e455037a1eb8af55b527898e3a6cc81279c70f81698c2c8