[INFO] fetching crate json 0.12.4...
[INFO] testing json-0.12.4 against beta-2021-08-01 for beta-1.55-1
[INFO] extracting crate json 0.12.4 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate json 0.12.4 on toolchain beta-2021-08-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate json 0.12.4
[INFO] finished tweaking crates.io crate json 0.12.4
[INFO] tweaked toml for crates.io crate json 0.12.4 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] e4954d3c5a062395de704406d07ff2c900cce137c6f2aabe3852a2175bbd264e
[INFO] running `Command { std: "docker" "start" "-a" "e4954d3c5a062395de704406d07ff2c900cce137c6f2aabe3852a2175bbd264e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e4954d3c5a062395de704406d07ff2c900cce137c6f2aabe3852a2175bbd264e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e4954d3c5a062395de704406d07ff2c900cce137c6f2aabe3852a2175bbd264e", kill_on_drop: false }`
[INFO] [stdout] e4954d3c5a062395de704406d07ff2c900cce137c6f2aabe3852a2175bbd264e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9f6e5f1167f5a21339f10be947ab0e479612ae5cca6870a2414055bb2d4ee312
[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" "9f6e5f1167f5a21339f10be947ab0e479612ae5cca6870a2414055bb2d4ee312", kill_on_drop: false }`
[INFO] [stderr]    Compiling json v0.12.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.96s
[INFO] running `Command { std: "docker" "inspect" "9f6e5f1167f5a21339f10be947ab0e479612ae5cca6870a2414055bb2d4ee312", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9f6e5f1167f5a21339f10be947ab0e479612ae5cca6870a2414055bb2d4ee312", kill_on_drop: false }`
[INFO] [stdout] 9f6e5f1167f5a21339f10be947ab0e479612ae5cca6870a2414055bb2d4ee312
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bae454a2a9d9d96a3d6488b37b6e35ea8fd34123ff0d2f794d6bf9c54abd00de
[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" "bae454a2a9d9d96a3d6488b37b6e35ea8fd34123ff0d2f794d6bf9c54abd00de", kill_on_drop: false }`
[INFO] [stderr]    Compiling json v0.12.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.98s
[INFO] running `Command { std: "docker" "inspect" "bae454a2a9d9d96a3d6488b37b6e35ea8fd34123ff0d2f794d6bf9c54abd00de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bae454a2a9d9d96a3d6488b37b6e35ea8fd34123ff0d2f794d6bf9c54abd00de", kill_on_drop: false }`
[INFO] [stdout] bae454a2a9d9d96a3d6488b37b6e35ea8fd34123ff0d2f794d6bf9c54abd00de
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] ec1212074d87a02ea358a964c542bdc3c3ead4309234b7ca24221b35a270de55
[INFO] running `Command { std: "docker" "start" "-a" "ec1212074d87a02ea358a964c542bdc3c3ead4309234b7ca24221b35a270de55", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/json-7f5abd5318b0c574)
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stderr]      Running tests/customgen.rs (/opt/rustwide/target/debug/deps/customgen-5167e874b3e87406)
[INFO] [stdout] test codegen::tests::should_not_panic_on_bad_bytes ... ok
[INFO] [stdout] test codegen::tests::should_not_panic_on_bad_bytes_2 ... ok
[INFO] [stdout] test parser::tests::it_should_parse_basic_json_values ... ok
[INFO] [stdout] test parser::tests::it_should_parse_escaped_quotes ... ok
[INFO] [stdout] test parser::tests::it_should_parse_json_arrays ... ok
[INFO] [stdout] test parser::tests::it_should_parse_json_complex_object ... ok
[INFO] [stdout] test parser::tests::it_should_parse_escaped_forward_slashes_with_quotes ... ok
[INFO] [stdout] test parser::tests::it_should_parse_json_nested_object ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stderr]      Running tests/json_checker.rs (/opt/rustwide/target/debug/deps/json_checker-2919ec7cec82d936)
[INFO] [stdout] test object_keys_sorted ... 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] [stdout] 
[INFO] [stdout] running 34 tests
[INFO] [stdout] test json_checker_fail::comma_instead_of_colon ... ok
[INFO] [stdout] test json_checker_fail::bad_value ... ok
[INFO] [stdout] test json_checker_fail::extra_close ... ok
[INFO] [stdout] test json_checker_fail::double_colon ... ok
[INFO] [stdout] test json_checker_fail::extra_comma_obj ... ok
[INFO] [stdout] test json_checker_fail::extra_value_after_close ... ok
[INFO] [stdout] test json_checker_fail::exponent_both_signs ... ok
[INFO] [stdout] test json_checker_fail::double_extra_comma ... ok
[INFO] [stdout] test json_checker_fail::illegal_backslash_escape_2 ... ok
[INFO] [stdout] test json_checker_fail::comma_after_close ... ok
[INFO] [stdout] test json_checker_fail::extra_comma_arr ... ok
[INFO] [stdout] test json_checker_fail::colon_instead_of_comma ... ok
[INFO] [stdout] test json_checker_fail::illegal_expression ... ok
[INFO] [stdout] test json_checker_fail::illegal_backslash_escape ... ok
[INFO] [stdout] test json_checker_fail::comma_instead_of_closing_brace ... ok
[INFO] [stdout] test json_checker_fail::illegal_invocation ... ok
[INFO] [stdout] test json_checker_fail::line_break ... ok
[INFO] [stdout] test json_checker_fail::tab_character_in_string_esc ... ok
[INFO] [stdout] test json_checker_fail::line_break_escaped ... ok
[INFO] [stdout] test json_checker_fail::missing_colon ... ok
[INFO] [stdout] test json_checker_fail::unclosed_array ... ok
[INFO] [stdout] test json_checker_fail::missing_value ... ok
[INFO] [stdout] test json_checker_fail::missmatch ... ok
[INFO] [stdout] test json_checker_fail::numbers_cannot_have_leading_zeroes ... ok
[INFO] [stdout] test json_checker_fail::naked ... ok
[INFO] [stdout] test json_checker_fail::no_exponent ... ok
[INFO] [stdout] test json_checker_fail::single_quote ... ok
[INFO] [stdout] test json_checker_fail::no_exponent_plus ... ok
[INFO] [stdout] test json_checker_fail::tab_character_in_string ... ok
[INFO] [stdout] test json_checker_fail::unquoted_key ... ok
[INFO] [stdout] test json_checker_pass::pass_1 ... ok
[INFO] [stdout] test json_checker_pass::pass_2 ... ok
[INFO] [stdout] test json_checker_pass::pass_3 ... ok
[INFO] [stdout] test json_checker_fail::numbers_cannot_be_hex ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 34 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/number.rs (/opt/rustwide/target/debug/deps/number-24b6e8ea8235b47b)
[INFO] [stdout] 
[INFO] [stdout] running 16 tests
[INFO] [stdout] test as_fixed_point_u64 ... ok
[INFO] [stdout] test convert_f64_precision ... ok
[INFO] [stdout] test eq ... ok
[INFO] [stdout] test from_small_float ... ok
[INFO] [stdout] test from_very_big_float ... ok
[INFO] [stdout] test is_empty ... ok
[INFO] [stdout] test is_nan ... ok
[INFO] [stdout] test from_very_small_float ... ok
[INFO] [stdout] test from_big_float ... ok
[INFO] [stdout] test into_very_small_float ... ok
[INFO] [stdout] test is_zero ... ok
[INFO] [stdout] test as_fixed_point_i64 ... ok
[INFO] [stdout] test eq_normalize_left_positive ... ok
[INFO] [stdout] test eq_normalize_right_positive ... ok
[INFO] [stdout] test eq_normalize_left_negative ... ok
[INFO] [stdout] test eq_normalize_right_negative ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 16 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/parse.rs (/opt/rustwide/target/debug/deps/parse-7252709457ab2643)
[INFO] [stdout] 
[INFO] [stdout] running 38 tests
[INFO] [stdout] test parse_and_index_from_object ... ok
[INFO] [stdout] test parse_escaped_characters ... ok
[INFO] [stdout] test parse_escaped_unicode ... ok
[INFO] [stdout] test parse_escaped_unicode_surrogate ... ok
[INFO] [stdout] test parse_integer ... ok
[INFO] [stdout] test parse_large_number ... ok
[INFO] [stdout] test parse_negative_integer ... ok
[INFO] [stdout] test parse_negative_number_with_leading_zero ... ok
[INFO] [stdout] test parse_negative_zero ... ok
[INFO] [stdout] test parse_nested_object ... ok
[INFO] [stdout] test parse_number_with_e ... ok
[INFO] [stdout] test parse_null ... ok
[INFO] [stdout] test parse_number_with_leading_zero ... ok
[INFO] [stdout] test parse_number ... ok
[INFO] [stdout] test parse_number_with_negative_e ... ok
[INFO] [stdout] test parse_number_with_invalid_e ... ok
[INFO] [stdout] test parse_false ... ok
[INFO] [stdout] test parse_number_with_positive_e ... ok
[INFO] [stdout] test parse_escaped_unicode_surrogate_fail ... ok
[INFO] [stdout] test parse_object ... ok
[INFO] [stdout] test parse_and_index_mut_from_array ... ok
[INFO] [stdout] test parse_object_duplicate_fields ... ok
[INFO] [stdout] test parse_period_requires_digit ... ok
[INFO] [stdout] test parse_object_with_array ... ok
[INFO] [stdout] test parse_true ... ok
[INFO] [stdout] test parse_small_number ... ok
[INFO] [stdout] test parse_very_long_exponent ... ok
[INFO] [stdout] test parse_very_long_float ... ok
[INFO] [stdout] test does_not_panic_on_huge_numbers ... ok
[INFO] [stdout] test uncode_identifier ... ok
[INFO] [stdout] test parse_and_index_mut_from_null ... ok
[INFO] [stdout] test parse_deeply_nested_arrays_and_objects ... ok
[INFO] [stdout] test parse_and_index_mut_from_object ... ok
[INFO] [stdout] test parse_array ... ok
[INFO] [stdout] test parse_error_after_depth_limit ... ok
[INFO] [stdout] test does_not_panic_on_single_unicode_char ... ok
[INFO] [stdout] test parse_and_index_from_array ... ok
[INFO] [stdout] test does_not_panic_on_single_zero ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 38 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/print_dec.rs (/opt/rustwide/target/debug/deps/print_dec-6a9d53820706777c)
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test issue_108_exponent_0 ... ok
[INFO] [stdout] test trailing_zeroes_int ... ok
[INFO] [stdout] test trailing_zeroes_small_fp ... ok
[INFO] [stdout] test trailing_zeroes_fp ... ok
[INFO] [stdout] test issue_108_exponent_positive ... ok
[INFO] [stdout] test issue_107 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/stringify.rs (/opt/rustwide/target/debug/deps/stringify-54c69786ef96ee67)
[INFO] [stdout] 
[INFO] [stdout] running 35 tests
[INFO] [stdout] test stringify_array ... ok
[INFO] [stdout] test stringify_array_with_push ... ok
[INFO] [stdout] test stringify_escaped_characters ... ok
[INFO] [stdout] test stringify_hash_map ... ok
[INFO] [stdout] test stringify_large_number ... ok
[INFO] [stdout] test stringify_nan ... ok
[INFO] [stdout] test stringify_negative_zero ... ok
[INFO] [stdout] test stringify_object ... ok
[INFO] [stdout] test stringify_object_with_put ... ok
[INFO] [stdout] test stringify_option_integer ... ok
[INFO] [stdout] test stringify_precise_positive_number ... ok
[INFO] [stdout] test stringify_pretty_object ... ok
[INFO] [stdout] test stringify_raw_object ... ok
[INFO] [stdout] test stringify_string ... ok
[INFO] [stdout] test stringify_true ... ok
[INFO] [stdout] test stringify_typed_opt_vec ... ok
[INFO] [stdout] test stringify_null ... ok
[INFO] [stdout] test stringify_vec ... ok
[INFO] [stdout] test stringify_number ... ok
[INFO] [stdout] test stringify_option_none ... ok
[INFO] [stdout] test stringify_precise_negative_number ... ok
[INFO] [stdout] test stringify_typed_vec ... ok
[INFO] [stdout] test stringify_very_large_number_no_fraction ... ok
[INFO] [stdout] test stringify_integer ... ok
[INFO] [stdout] test stringify_very_large_number ... ok
[INFO] [stdout] test stringify_small_number ... ok
[INFO] [stdout] test stringify_str_slice ... ok
[INFO] [stdout] test stringify_infinity ... ok
[INFO] [stdout] test stringify_false ... ok
[INFO] [stdout] test stringify_escaped ... ok
[INFO] [stdout] test stringify_dont_escape_forward_slash ... ok
[INFO] [stdout] test stringify_very_small_number ... ok
[INFO] [stdout] test stringify_zero ... ok
[INFO] [stdout] test stringify_control_escaped ... ok
[INFO] [stdout] test stringify_btree_map ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 35 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/value.rs (/opt/rustwide/target/debug/deps/value-112ef981f7342109)
[INFO] [stdout] 
[INFO] [stdout] running 50 tests
[INFO] [stdout] test array_contains ... ok
[INFO] [stdout] test array_len ... ok
[INFO] [stdout] test array_members_rev ... ok
[INFO] [stdout] test array_pop ... ok
[INFO] [stdout] test array_push ... ok
[INFO] [stdout] test array_remove ... ok
[INFO] [stdout] test array_members ... ok
[INFO] [stdout] test equality ... ok
[INFO] [stdout] test as_fixed_point ... ok
[INFO] [stdout] test error_unexpected_token ... ok
[INFO] [stdout] test error_unexpected_character ... ok
[INFO] [stdout] test error_unexpected_unicode_character ... ok
[INFO] [stdout] test fmt_array ... ok
[INFO] [stdout] test fmt_boolean ... ok
[INFO] [stdout] test fmt_null ... ok
[INFO] [stdout] test fmt_number ... ok
[INFO] [stdout] test fmt_string ... ok
[INFO] [stdout] test fmt_object ... ok
[INFO] [stdout] test index_by_str ... ok
[INFO] [stdout] test index_by_string ... ok
[INFO] [stdout] test index_mut_by_string ... ok
[INFO] [stdout] test index_by_string_ref ... ok
[INFO] [stdout] test index_mut_by_string_ref ... ok
[INFO] [stdout] test is_as_boolean ... ok
[INFO] [stdout] test is_as_number ... ok
[INFO] [stdout] test is_as_string ... ok
[INFO] [stdout] test is_empty ... ok
[INFO] [stdout] test is_false ... ok
[INFO] [stdout] test is_null ... ok
[INFO] [stdout] test is_true ... ok
[INFO] [stdout] test null_len ... ok
[INFO] [stdout] test object_dump_minified ... ok
[INFO] [stdout] test object_dump_pretty ... ok
[INFO] [stdout] test object_entries ... ok
[INFO] [stdout] test object_entries_mut ... ok
[INFO] [stdout] test object_entries_mut_rev ... ok
[INFO] [stdout] test object_entries_rev ... ok
[INFO] [stdout] test object_index_by_str ... ok
[INFO] [stdout] test object_index_by_string ... ok
[INFO] [stdout] test object_index_by_string_ref ... ok
[INFO] [stdout] test object_len ... ok
[INFO] [stdout] test array_members_mut_rev ... ok
[INFO] [stdout] test object_remove ... ok
[INFO] [stdout] test pretty_writer_generator ... ok
[INFO] [stdout] test writer_generator ... ok
[INFO] [stdout] test array_members_mut ... ok
[INFO] [stdout] test index_mut_by_str ... ok
[INFO] [stdout] test object_index_mut_by_string_ref ... ok
[INFO] [stdout] test object_index_mut_by_string ... ok
[INFO] [stdout] test object_index_mut_by_str ... ok
[INFO] [stderr]    Doc-tests json
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 50 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 30 tests
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name json --test /opt/rustwide/workdir/src/lib.rs -L dependency=/opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern json=/opt/rustwide/target/debug/deps/libjson-d11c103f19dfefac.rlib -C embed-bitcode=no --error-format human` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "ec1212074d87a02ea358a964c542bdc3c3ead4309234b7ca24221b35a270de55", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ec1212074d87a02ea358a964c542bdc3c3ead4309234b7ca24221b35a270de55", kill_on_drop: false }`
[INFO] [stdout] ec1212074d87a02ea358a964c542bdc3c3ead4309234b7ca24221b35a270de55
