[INFO] fetching crate rexlang-typesystem 3.9.11...
[INFO] testing rexlang-typesystem-3.9.11 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate rexlang-typesystem 3.9.11 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate rexlang-typesystem 3.9.11
[INFO] finished tweaking crates.io crate rexlang-typesystem 3.9.11
[INFO] tweaked toml for crates.io crate rexlang-typesystem 3.9.11 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate rexlang-typesystem 3.9.11 on toolchain beta-2026-04-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate rexlang-typesystem 3.9.11 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ee052d7cb41facd803744796b632e05d14974eb0e558adf61efb23907a7b532f
[INFO] running `Command { std: "docker" "start" "-a" "ee052d7cb41facd803744796b632e05d14974eb0e558adf61efb23907a7b532f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ee052d7cb41facd803744796b632e05d14974eb0e558adf61efb23907a7b532f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ee052d7cb41facd803744796b632e05d14974eb0e558adf61efb23907a7b532f", kill_on_drop: false }`
[INFO] [stdout] ee052d7cb41facd803744796b632e05d14974eb0e558adf61efb23907a7b532f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a88469a4bf0571ffcdf8ca36d24e261b77a18b00847d25868bdb51ba45acac31
[INFO] running `Command { std: "docker" "start" "-a" "a88469a4bf0571ffcdf8ca36d24e261b77a18b00847d25868bdb51ba45acac31", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.104
[INFO] [stderr]    Compiling quote v1.0.42
[INFO] [stderr]    Compiling unicode-ident v1.0.22
[INFO] [stderr]    Compiling serde_core v1.0.228
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling memchr v2.7.6
[INFO] [stderr]    Compiling zmij v1.0.2
[INFO] [stderr]    Compiling libc v0.2.178
[INFO] [stderr]    Compiling serde_json v1.0.148
[INFO] [stderr]    Compiling triomphe v0.1.15
[INFO] [stderr]    Compiling iana-time-zone v0.1.64
[INFO] [stderr]    Compiling archery v1.2.2
[INFO] [stderr]    Compiling aho-corasick v1.1.4
[INFO] [stderr]    Compiling syn v2.0.111
[INFO] [stderr]    Compiling regex-automata v0.4.13
[INFO] [stderr]    Compiling getrandom v0.3.4
[INFO] [stderr]    Compiling uuid v1.19.0
[INFO] [stderr]    Compiling regex v1.12.2
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]    Compiling tokio-macros v2.6.0
[INFO] [stderr]    Compiling async-recursion v1.1.1
[INFO] [stderr]    Compiling async-trait v0.1.89
[INFO] [stderr]    Compiling tokio v1.48.0
[INFO] [stderr]    Compiling thiserror v1.0.69
[INFO] [stderr]    Compiling rexlang-util v3.9.11
[INFO] [stderr]    Compiling rpds v1.2.0
[INFO] [stderr]    Compiling rexlang-lexer v3.9.11
[INFO] [stderr]    Compiling chrono v0.4.42
[INFO] [stderr]    Compiling rexlang-ast v3.9.11
[INFO] [stderr]    Compiling rexlang-parser v3.9.11
[INFO] [stderr]    Compiling rexlang-typesystem v3.9.11 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 39.79s
[INFO] running `Command { std: "docker" "inspect" "a88469a4bf0571ffcdf8ca36d24e261b77a18b00847d25868bdb51ba45acac31", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a88469a4bf0571ffcdf8ca36d24e261b77a18b00847d25868bdb51ba45acac31", kill_on_drop: false }`
[INFO] [stdout] a88469a4bf0571ffcdf8ca36d24e261b77a18b00847d25868bdb51ba45acac31
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0c9098aeb62c7c7bd2f6c705aecb22b437db57a971a8b68a6570097e489e4692
[INFO] running `Command { std: "docker" "start" "-a" "0c9098aeb62c7c7bd2f6c705aecb22b437db57a971a8b68a6570097e489e4692", kill_on_drop: false }`
[INFO] [stderr]    Compiling rexlang-typesystem v3.9.11 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 6.72s
[INFO] running `Command { std: "docker" "inspect" "0c9098aeb62c7c7bd2f6c705aecb22b437db57a971a8b68a6570097e489e4692", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0c9098aeb62c7c7bd2f6c705aecb22b437db57a971a8b68a6570097e489e4692", kill_on_drop: false }`
[INFO] [stdout] 0c9098aeb62c7c7bd2f6c705aecb22b437db57a971a8b68a6570097e489e4692
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] f5d46640e1eefacd407193a3b2da823a550e56245f2cb7a194b3d65dccd1cc6e
[INFO] running `Command { std: "docker" "start" "-a" "f5d46640e1eefacd407193a3b2da823a550e56245f2cb7a194b3d65dccd1cc6e", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/rexlang_typesystem-492d8a52561bb3cf)
[INFO] [stdout] 
[INFO] [stdout] running 86 tests
[INFO] [stdout] test inference::tests::collect_adts_in_types_rejects_conflicting_names ... ok
[INFO] [stdout] test inference::tests::collect_adts_in_types_finds_nested_unique_adts ... ok
[INFO] [stdout] test inference::tests::infer_ambiguous_overload_error ... ok
[INFO] [stdout] test inference::tests::entail_instances ... ok
[INFO] [stdout] test inference::tests::declare_fn_injects_scheme_for_use_sites ... ok
[INFO] [stdout] test inference::tests::adt_constructors_are_present ... ok
[INFO] [stdout] test inference::tests::infer_apply_constructor_too_many_args_error ... ok
[INFO] [stdout] test inference::tests::infer_additive_group_constraint ... ok
[INFO] [stdout] test inference::tests::entail_superclasses ... ok
[INFO] [stdout] test inference::tests::infer_additive_monoid_constraint ... ok
[INFO] [stdout] test inference::tests::infer_apply_wrong_arg_type_error ... ok
[INFO] [stdout] test inference::tests::declare_fn_is_noop_when_matching_existing_scheme ... ok
[INFO] [stdout] test inference::tests::infer_apply_non_function_error ... ok
[INFO] [stdout] test inference::tests::infer_division_defaults ... ok
[INFO] [stdout] test inference::tests::infer_cons_pattern_on_non_list_error ... ok
[INFO] [stdout] test inference::tests::infer_dict_pattern_on_non_dict_error ... ok
[INFO] [stdout] test inference::tests::infer_dict_value_mismatch_error ... ok
[INFO] [stdout] test inference::tests::infer_fn_decl_polymorphic_where_constraints ... ok
[INFO] [stdout] test inference::tests::infer_fn_decl_signature_form ... ok
[INFO] [stdout] test inference::tests::infer_get_list_type ... ok
[INFO] [stdout] test inference::tests::infer_fn_decl_simple ... ok
[INFO] [stdout] test inference::tests::infer_depth_limit_is_enforced ... ok
[INFO] [stdout] test inference::tests::infer_hole_in_arithmetic_is_numeric_constrained ... ok
[INFO] [stdout] test inference::tests::infer_hole_arithmetic_conflicting_annotation_failure ... ok
[INFO] [stdout] test inference::tests::infer_hole_with_annotation_unifies_to_annotation ... ok
[INFO] [stdout] test inference::tests::infer_hole_in_if_condition_is_bool_constrained ... ok
[INFO] [stdout] test inference::tests::infer_integral_constraint ... ok
[INFO] [stdout] test inference::tests::infer_deep_list_does_not_overflow ... ok
[INFO] [stdout] test inference::tests::infer_literal_addition_defaults ... ok
[INFO] [stdout] test inference::tests::infer_head_or_list_match_cons_constructor_form ... ok
[INFO] [stdout] test inference::tests::infer_list_element_mismatch_error ... ok
[INFO] [stdout] test inference::tests::infer_match_list_on_non_list_error ... ok
[INFO] [stdout] test inference::tests::infer_match_arm_type_mismatch_error ... ok
[INFO] [stdout] test inference::tests::infer_head_or_list_match ... ok
[INFO] [stdout] test inference::tests::infer_get_tuple_type ... ok
[INFO] [stdout] test inference::tests::infer_mod_defaults ... ok
[INFO] [stdout] test inference::tests::infer_multiplicative_monoid_constraint ... ok
[INFO] [stdout] test inference::tests::infer_if_branch_type_mismatch_error ... ok
[INFO] [stdout] test inference::tests::infer_if_cond_not_bool_error ... ok
[INFO] [stdout] test inference::tests::infer_match_list_patterns_on_result_error ... ok
[INFO] [stdout] test inference::tests::infer_match_option_on_non_option_error ... ok
[INFO] [stdout] test inference::tests::infer_non_exhaustive_list_missing_cons_error ... ok
[INFO] [stdout] test inference::tests::infer_non_exhaustive_list_missing_empty_error ... ok
[INFO] [stdout] test inference::tests::infer_non_exhaustive_match_is_error ... ok
[INFO] [stdout] test inference::tests::infer_non_exhaustive_result_match_error ... ok
[INFO] [stdout] test inference::tests::infer_non_exhaustive_option_match_error ... ok
[INFO] [stdout] test inference::tests::infer_operator_type_mismatch_error ... ok
[INFO] [stdout] test inference::tests::infer_nested_result_option_match ... ok
[INFO] [stdout] test inference::tests::infer_nested_let_lambda_match_option ... ok
[INFO] [stdout] test inference::tests::infer_polymorphic_id_tuple ... ok
[INFO] [stdout] test inference::tests::infer_project_known_variant_let ... ok
[INFO] [stdout] test inference::tests::infer_project_lambda_param_single_variant ... ok
[INFO] [stdout] test inference::tests::infer_polymorphic_apply_in_tuple ... ok
[INFO] [stdout] test inference::tests::infer_non_exhaustive_list_match_on_bound_var_error ... ok
[INFO] [stdout] test inference::tests::infer_project_in_match_arm ... ok
[INFO] [stdout] test inference::tests::infer_project_single_variant_let ... ok
[INFO] [stdout] test inference::tests::infer_self_application_occurs_error ... ok
[INFO] [stdout] test inference::tests::infer_project_unknown_variant_error ... ok
[INFO] [stdout] test inference::tests::infer_record_pattern_in_lambda ... ok
[INFO] [stdout] test inference::tests::infer_type_annotation_ok ... ok
[INFO] [stdout] test inference::tests::infer_type_annotation_is_alias ... ok
[INFO] [stdout] test inference::tests::infer_type_annotation_lambda_param ... ok
[INFO] [stdout] test inference::tests::infer_typed_hole_expr_is_hole_kind ... ok
[INFO] [stdout] test inference::tests::infer_type_annotation_mismatch_error ... ok
[INFO] [stdout] test inference::tests::infer_unknown_pattern_constructor_error ... ok
[INFO] [stdout] test inference::tests::instantiate_and_generalize_round_trip ... ok
[INFO] [stdout] test inference::tests::occurs_check_blocks_infinite_type ... ok
[INFO] [stdout] test inference::tests::infer_type_annotation_with_promise_constructor ... ok
[INFO] [stdout] test inference::tests::prelude_injects_functions ... ok
[INFO] [stdout] test inference::tests::infer_non_exhaustive_match_in_lambda_error ... ok
[INFO] [stdout] test inference::tests::infer_with_gas_rejects_out_of_budget ... ok
[INFO] [stdout] test inference::tests::infer_non_exhaustive_match_on_bound_var_error ... ok
[INFO] [stdout] test inference::tests::infer_pattern_constructor_arity_error ... ok
[INFO] [stdout] test inference::tests::infer_unbound_variable_error ... ok
[INFO] [stdout] test inference::tests::record_update_unknown_field_errors ... ok
[INFO] [stdout] test inference::tests::reject_user_redefinition_of_promise_type_name ... ok
[INFO] [stdout] test inference::tests::record_update_plain_record_type ... ok
[INFO] [stdout] test inference::tests::unify_simple ... ok
[INFO] [stdout] test inference::tests::reject_user_redefinition_of_prelude_adt_name ... ok
[INFO] [stdout] test inference::tests::infer_missing_instances_produce_unsatisfied_predicates ... ok
[INFO] [stdout] test inference::tests::reject_user_redefinition_of_primitive_type_name ... ok
[INFO] [stdout] test inference::tests::type_errors_include_span ... ok
[INFO] [stdout] test inference::tests::unit_type_parses_and_infers ... ok
[INFO] [stdout] test inference::tests::record_update_requires_refined_variant_for_sum_types ... ok
[INFO] [stdout] test inference::tests::record_update_single_variant_adt_infers ... ok
[INFO] [stdout] test inference::tests::record_update_allowed_after_match_refines_variant ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 86 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.11s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests rexlang_typesystem
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/types.rs - types::collect_adts_in_types (line 913) ... ignored
[INFO] [stdout] test src/types.rs - types::collect_adts_in_types (line 925) ... ignored
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 2 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] all doctests ran in 0.49s; merged doctests compilation took 0.49s
[INFO] running `Command { std: "docker" "inspect" "f5d46640e1eefacd407193a3b2da823a550e56245f2cb7a194b3d65dccd1cc6e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f5d46640e1eefacd407193a3b2da823a550e56245f2cb7a194b3d65dccd1cc6e", kill_on_drop: false }`
[INFO] [stdout] f5d46640e1eefacd407193a3b2da823a550e56245f2cb7a194b3d65dccd1cc6e
