[INFO] fetching crate mini-kanren 0.4.0...
[INFO] testing mini-kanren-0.4.0 against try#ce59db7a1b1b012fb2793c4641c1bdecad7a128b for pr-85530
[INFO] extracting crate mini-kanren 0.4.0 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate mini-kanren 0.4.0 on toolchain ce59db7a1b1b012fb2793c4641c1bdecad7a128b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mini-kanren 0.4.0
[INFO] finished tweaking crates.io crate mini-kanren 0.4.0
[INFO] tweaked toml for crates.io crate mini-kanren 0.4.0 written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate crates.io crate mini-kanren 0.4.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7cc8ff7032fdcf9ec1147cb4eaf94d1e0e6ab75da1384ec335d21f9a3a4d94d5
[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" "7cc8ff7032fdcf9ec1147cb4eaf94d1e0e6ab75da1384ec335d21f9a3a4d94d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7cc8ff7032fdcf9ec1147cb4eaf94d1e0e6ab75da1384ec335d21f9a3a4d94d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7cc8ff7032fdcf9ec1147cb4eaf94d1e0e6ab75da1384ec335d21f9a3a4d94d5", kill_on_drop: false }`
[INFO] [stdout] 7cc8ff7032fdcf9ec1147cb4eaf94d1e0e6ab75da1384ec335d21f9a3a4d94d5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5d5cee927254716117b73b4ca3eeb1dddd585ae4ffb87a80461f5628b786f3a0
[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" "5d5cee927254716117b73b4ca3eeb1dddd585ae4ffb87a80461f5628b786f3a0", kill_on_drop: false }`
[INFO] [stderr]    Compiling mini-kanren v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.98s
[INFO] running `Command { std: "docker" "inspect" "5d5cee927254716117b73b4ca3eeb1dddd585ae4ffb87a80461f5628b786f3a0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5d5cee927254716117b73b4ca3eeb1dddd585ae4ffb87a80461f5628b786f3a0", kill_on_drop: false }`
[INFO] [stdout] 5d5cee927254716117b73b4ca3eeb1dddd585ae4ffb87a80461f5628b786f3a0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b351cf278168ba0e8c3f88c678e338d0994ef38f6dc73f1700758b55886ed4ce
[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" "b351cf278168ba0e8c3f88c678e338d0994ef38f6dc73f1700758b55886ed4ce", kill_on_drop: false }`
[INFO] [stderr]    Compiling mini-kanren v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 8.75s
[INFO] running `Command { std: "docker" "inspect" "b351cf278168ba0e8c3f88c678e338d0994ef38f6dc73f1700758b55886ed4ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b351cf278168ba0e8c3f88c678e338d0994ef38f6dc73f1700758b55886ed4ce", kill_on_drop: false }`
[INFO] [stdout] b351cf278168ba0e8c3f88c678e338d0994ef38f6dc73f1700758b55886ed4ce
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 9df4f18d3754d1d7c9d6f57974e71161b30ea6492d56e5a18f8eea48144bdadd
[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" "9df4f18d3754d1d7c9d6f57974e71161b30ea6492d56e5a18f8eea48144bdadd", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/mini_kanren-7e6f89940d8c9837)
[INFO] [stdout] 
[INFO] [stdout] running 82 tests
[INFO] [stdout] test core::goal::tests::an_arcd_dyn_rawgoal_is_a_goal ... ok
[INFO] [stdout] test core::substitution::tests::unify_value_with_var_extends_substitution ... ok
[INFO] [stdout] test goals::hashmap::tests::two_empty_hashmaps_are_unifiable ... ok
[INFO] [stdout] test core::logic_variable::unit_tests::can_create_fresh_variables_with_name ... ok
[INFO] [stdout] test core::pair::tests::pairs_print_two_values_in_parentheses_separated_by_dot ... ok
[INFO] [stdout] test core::substitution::tests::unify_same_var_does_not_modify_substitution ... ok
[INFO] [stdout] test goals::list::tests::appending_an_empty_list_gives_same_list ... ok
[INFO] [stdout] test goals::list::tests::appendo_fails_when_first_argument_is_not_a_list ... ok
[INFO] [stdout] test core::logic_variable::unit_tests::copied_variables_are_equal ... ok
[INFO] [stdout] test goals::list::tests::appending_to_an_empty_list_gives_appended_value ... ok
[INFO] [stdout] test goals::list::tests::appending_to_a_list ... ok
[INFO] [stdout] test goals::list::tests::lengtho_is_one_for_list_with_one_element ... ok
[INFO] [stdout] test goals::list::tests::lengtho_is_zero_for_the_empty_list ... ok
[INFO] [stdout] test goals::list::tests::appendo_fails_when_inputs_dont_match ... ok
[INFO] [stdout] test core::logic_variable::unit_tests::can_convert_str_to_var ... ok
[INFO] [stdout] test core::logic_variable::unit_tests::can_copy_variables ... ok
[INFO] [stdout] test core::goal::tests::an_rcd_dyn_rawgoal_is_a_goal ... ok
[INFO] [stdout] test core::logic_variable::unit_tests::two_variables_with_same_name_are_not_equal ... ok
[INFO] [stdout] test core::pair::tests::pairs_print_only_first_value_in_parentheses_if_second_is_nil ... ok
[INFO] [stdout] test core::substitution::tests::unify_two_vars_extends_substitution ... ok
[INFO] [stdout] test core::pair::tests::pairs_print_as_list_if_second_is_pair ... ok
[INFO] [stdout] test core::pair::tests::pairs_print_alternate_omits_parentheses ... ok
[INFO] [stdout] test core::substitution::tests::unify_same_values_does_not_modify_substitution ... ok
[INFO] [stdout] test core::substitution::tests::it_works ... ok
[INFO] [stdout] test core::substitution::tests::unify_different_values_fails ... ok
[INFO] [stdout] test goals::list::tests::lengtho_produces_lists_and_matching_lengths ... ok
[INFO] [stdout] test goals::list::tests::listo_generates_all_possible_lists ... ok
[INFO] [stdout] test goals::list::tests::listo_fails_for_pair_whose_second_element_is_no_list ... ok
[INFO] [stdout] test goals::list::tests::appendo_fails_when_third_argument_is_not_a_list ... ok
[INFO] [stdout] test goals::list::tests::appendo_succeeds_when_inputs_match ... ok
[INFO] [stdout] test goals::list::tests::appending_arbitrary_list ... ok
[INFO] [stdout] test goals::list::tests::listo_succeeds_for_pair_whose_second_element_is_a_list ... ok
[INFO] [stdout] test goals::list::tests::listo_succeeds_for_empty_list ... ok
[INFO] [stdout] test goals::list::tests::membero_succeeds_for_all_possible_members ... ok
[INFO] [stdout] test goals::list::tests::membero_succeeds_for_all_possible_lists ... ok
[INFO] [stdout] test goals::numbers::tests::addo_computes_sum_of_two_values ... ok
[INFO] [stdout] test goals::list::tests::rembero_generates_possible_removal_combinations ... ok
[INFO] [stdout] test goals::list::tests::membero_does_not_succeed_if_value_not_in_list ... ok
[INFO] [stdout] test goals::list::tests::pairo_binds_pair_to_variable ... ok
[INFO] [stdout] test goals::list::tests::rembero_lists_all_items_that_can_be_removed_from_list ... ok
[INFO] [stdout] test goals::list::tests::rembero_fails_if_item_not_in_list ... ok
[INFO] [stdout] test goals::numbers::tests::addo_computes_differences ... ok
[INFO] [stdout] test goals::list::tests::rembero_on_empty_list_always_fails ... ok
[INFO] [stdout] test goals::list::tests::rembero_returns_empty_list_if_it_removes_the_only_item ... ok
[INFO] [stdout] test goals::list::tests::listo_fails_for_non_list ... ok
[INFO] [stdout] test goals::numbers::tests::addo_obeys_additive_identity ... ok
[INFO] [stdout] test goals::list::tests::membero_does_succeed_if_value_first_in_list ... ok
[INFO] [stdout] test goals::numbers::tests::addo_succeeds_for_all_zeros ... ok
[INFO] [stdout] test goals::numbers::tests::addo_succeeds_for_correct_addition ... ok
[INFO] [stdout] test goals::list::tests::membero_does_succeed_if_value_in_list ... ok
[INFO] [stdout] test goals::numbers::tests::addo_fails_if_it_would_need_a_negative_number_as_first_argument ... ok
[INFO] [stdout] test goals::numbers::tests::inco_fails_if_right_side_is_zero ... ok
[INFO] [stdout] test goals::numbers::tests::addo_generates_all_number_pairs_that_sum_to_a_value ... ok
[INFO] [stdout] test goals::numbers::tests::inco_succeeds_for_incremented_numbers ... ok
[INFO] [stdout] test goals::numbers::tests::inco_fails_for_equal_numbers ... ok
[INFO] [stdout] test goals::numbers::tests::inco_fails_for_too_large_increment ... ok
[INFO] [stdout] test goals::numbers::tests::addo_fails_for_wrong_addition ... ok
[INFO] [stdout] test goals::numbers::tests::addo_generates_constrained_pairs_of_numbers ... ok
[INFO] [stdout] test goals::numbers::tests::addo_fails_if_it_would_need_a_negative_number_as_second_argument ... ok
[INFO] [stdout] test goals::numbers::tests::mulo_fails_for_wrong_multiplication ... ok
[INFO] [stdout] test goals::numbers::tests::mulo_computes_quotients ... ok
[INFO] [stdout] test goals::numbers::tests::mulo_computes_product_of_two_values ... ok
[INFO] [stdout] test macros::tests::matching_anything_succeeds_always ... ok
[INFO] [stdout] test macros::tests::matche_matches_values ... ok
[INFO] [stdout] test macros::tests::matching_deconstructs_lists_and_binds_fresh_vars ... ok
[INFO] [stdout] test macros::tests::matching_fails_if_any_further_goals_fail ... ok
[INFO] [stdout] test tests::it_works ... ok
[INFO] [stdout] test goals::numbers::tests::mulo_generates_constrained_pairs_of_numbers ... ok
[INFO] [stdout] test goals::numbers::tests::numbero_fails_for_non_numeric_values ... ok
[INFO] [stdout] test goals::numbers::tests::zero_fails_for_nonzero_numbers ... ok
[INFO] [stdout] test macros::tests::matching_deconstructs_lists ... ok
[INFO] [stdout] test goals::numbers::tests::mulo_succeeds_for_trivial_cases ... ok
[INFO] [stdout] test macros::tests::matche_can_escape_outside_vars ... ok
[INFO] [stdout] test goals::numbers::tests::zero_succeeds_for_zero_valued_number ... ok
[INFO] [stdout] test macros::tests::matching_a_constant_binds_value ... ok
[INFO] [stdout] test goals::numbers::tests::numbero_succeeds_for_arbitrary_numbers ... ok
[INFO] [stdout] test macros::tests::each_successful_matching_line_contributes_a_value ... ok
[INFO] [stdout] test goals::numbers::tests::numbero_generates_numbers ... ok
[INFO] [stdout] test goals::numbers::tests::mulo_generates_all_number_pairs_that_multiply_to_a_value ... ok
[INFO] [stdout] test goals::numbers::tests::mulo_succeeds_for_correct_multiplication ... ok
[INFO] [stdout] test goals::numbers::tests::mulo_fails_for_non_integer_quotients ... ok
[INFO] [stdout] test goals::numbers::tests::mulo_combinations ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 82 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.16s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests mini-kanren
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "9df4f18d3754d1d7c9d6f57974e71161b30ea6492d56e5a18f8eea48144bdadd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9df4f18d3754d1d7c9d6f57974e71161b30ea6492d56e5a18f8eea48144bdadd", kill_on_drop: false }`
[INFO] [stdout] 9df4f18d3754d1d7c9d6f57974e71161b30ea6492d56e5a18f8eea48144bdadd