[INFO] fetching crate jsonist 0.0.3...
[INFO] testing jsonist-0.0.3 against 1.49.0 for beta-1.50-1
[INFO] extracting crate jsonist 0.0.3 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate jsonist 0.0.3 on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate jsonist 0.0.3
[INFO] finished tweaking crates.io crate jsonist 0.0.3
[INFO] tweaked toml for crates.io crate jsonist 0.0.3 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e90bf685aec4e56cd3c02eb28675f093bf7132a5e355ed3d95df07ab63f47670
[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" "e90bf685aec4e56cd3c02eb28675f093bf7132a5e355ed3d95df07ab63f47670", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e90bf685aec4e56cd3c02eb28675f093bf7132a5e355ed3d95df07ab63f47670", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e90bf685aec4e56cd3c02eb28675f093bf7132a5e355ed3d95df07ab63f47670", kill_on_drop: false }`
[INFO] [stdout] e90bf685aec4e56cd3c02eb28675f093bf7132a5e355ed3d95df07ab63f47670
[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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1867781b8f767d2f2ac0ae1d789779821d97266376b640117f363ac2007d17e4
[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" "1867781b8f767d2f2ac0ae1d789779821d97266376b640117f363ac2007d17e4", kill_on_drop: false }`
[INFO] [stderr]    Compiling jsonist v0.0.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.68s
[INFO] running `Command { std: "docker" "inspect" "1867781b8f767d2f2ac0ae1d789779821d97266376b640117f363ac2007d17e4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1867781b8f767d2f2ac0ae1d789779821d97266376b640117f363ac2007d17e4", kill_on_drop: false }`
[INFO] [stdout] 1867781b8f767d2f2ac0ae1d789779821d97266376b640117f363ac2007d17e4
[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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8be713451c3af629c26390a197753e98c5d7180feb410a40c2e9e3bfa1e0e3e4
[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" "8be713451c3af629c26390a197753e98c5d7180feb410a40c2e9e3bfa1e0e3e4", kill_on_drop: false }`
[INFO] [stderr]    Compiling jsonist v0.0.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 3.01s
[INFO] running `Command { std: "docker" "inspect" "8be713451c3af629c26390a197753e98c5d7180feb410a40c2e9e3bfa1e0e3e4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8be713451c3af629c26390a197753e98c5d7180feb410a40c2e9e3bfa1e0e3e4", kill_on_drop: false }`
[INFO] [stdout] 8be713451c3af629c26390a197753e98c5d7180feb410a40c2e9e3bfa1e0e3e4
[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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] a6ab2ffa7d74b699a60bdf1fa10248d5dc47cb08d1a56c9a2e1dd4d179653bf0
[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" "a6ab2ffa7d74b699a60bdf1fa10248d5dc47cb08d1a56c9a2e1dd4d179653bf0", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/jsonist-7a99efc31b13ed31
[INFO] [stdout] 
[INFO] [stdout] running 59 tests
[INFO] [stdout] test formatter::tests::print_node_false ... ok
[INFO] [stdout] test formatter::tests::print_node_array ... ok
[INFO] [stdout] test parser::object::literal::tests::parse_literal_normal ... ok
[INFO] [stdout] test parser::array::tests::parse_array_with_n_items ... ok
[INFO] [stdout] test formatter::errors::tests::i_can_display_an_invalid_character_display ... ok
[INFO] [stdout] test formatter::tests::print_node_true ... ok
[INFO] [stdout] test formatter::tests::print_node_literal ... ok
[INFO] [stdout] test parser::array::tests::parse_array_with_a_single_item ... ok
[INFO] [stdout] test formatter::tests::print_node_pair ... ok
[INFO] [stdout] test formatter::tests::print_node_null ... ok
[INFO] [stdout] test parser::object::tests::parse_object_with_n_pair ... ok
[INFO] [stdout] test parser::array::tests::parse_array_empty ... ok
[INFO] [stdout] test parser::object::tests::parse_object_empty ... ok
[INFO] [stdout] test formatter::tests::print_node_object ... ok
[INFO] [stdout] test parser::object::tests::parse_object_one_pair ... ok
[INFO] [stdout] test formatter::tests::print_node_number ... ok
[INFO] [stdout] test parser::utils::tests::remove_whitespace_only_leaves_important_things ... ok
[INFO] [stdout] test parser::tests::r#true ... ok
[INFO] [stdout] test parser::tests::null ... ok
[INFO] [stdout] test parser::tests::r#false ... ok
[INFO] [stdout] test parser::tests::number ... ok
[INFO] [stdout] test parser::tests::string ... ok
[INFO] [stdout] test parser::tests::array ... ok
[INFO] [stdout] test tokenizer::get_next_token::collate::tests::string_literal ... ok
[INFO] [stdout] test tokenizer::get_next_token::collate::tests::string_literal_with_an_escape_in_it ... ok
[INFO] [stdout] test tokenizer::get_next_token::collate::tests::string_literal_with_lots_of_escaped_quotes_in_it ... ok
[INFO] [stdout] test tokenizer::get_next_token::number::tests::number_literal ... ok
[INFO] [stdout] test tokenizer::get_next_token::tests::close_square_bracket ... ok
[INFO] [stdout] test tokenizer::get_next_token::number::tests::number_literals_should_handle_negative_numbers ... ok
[INFO] [stdout] test tokenizer::get_next_token::collate::tests::expect_false_with_correct_tokens ... ok
[INFO] [stdout] test tokenizer::get_next_token::tests::close_brace ... ok
[INFO] [stdout] test tokenizer::get_next_token::tests::colon ... ok
[INFO] [stdout] test tokenizer::get_next_token::tests::open_brace ... ok
[INFO] [stdout] test tokenizer::get_next_token::tests::quote ... ok
[INFO] [stdout] test tokenizer::get_next_token::tests::open_square_bracket ... ok
[INFO] [stdout] test tokenizer::tests::tokenize_an_object ... ok
[INFO] [stdout] test tokenizer::tests::tokenize_an_array ... ok
[INFO] [stdout] test tokenizer::get_next_token::tests::whitespace ... ok
[INFO] [stdout] test tokenizer::tests::tokenize_number ... ok
[INFO] [stdout] test tokenizer::tests::tokenize_false ... ok
[INFO] [stdout] test tokenizer::tests::tokenize_null ... ok
[INFO] [stdout] test tokenizer::tests::tokenize_string ... ok
[INFO] [stdout] test parser::object::tests::parse_object_one_pair_no_colon ... ok
[INFO] [stdout] test parser::object::tests::parse_object_with_duplicate_keys_should_fail ... ok
[INFO] [stdout] test tokenizer::utils::tests::end_position_of_a_complex_token ... ok
[INFO] [stdout] test tokenizer::utils::tests::start_position_of_simple_token ... ok
[INFO] [stdout] test tokenizer::utils::tests::end_position_of_a_complex_token_null ... ok
[INFO] [stdout] test tokenizer::tests::tokenize_true ... ok
[INFO] [stdout] test parser::object::literal::tests::parse_literal_on_other_stuff ... ok
[INFO] [stdout] test parser::object::tests::parse_object_key_must_be_a_literal ... ok
[INFO] [stdout] test tokenizer::get_next_token::collate::tests::expect_failure_when_false_is_spelt_wrong ... ok
[INFO] [stdout] test tokenizer::get_next_token::number::tests::number_literal_can_not_have_two_exponentials ... ok
[INFO] [stdout] test tokenizer::get_next_token::number::tests::number_literal_can_not_end_with_an_e ... ok
[INFO] [stdout] test tokenizer::get_next_token::number::tests::number_can_not_contain_letters_other_than_e ... ok
[INFO] [stdout] test tokenizer::get_next_token::number::tests::number_literal_can_not_have_two_dots ... ok
[INFO] [stdout] test tokenizer::get_next_token::collate::tests::string_literal_no_end_quote ... ok
[INFO] [stdout] test tokenizer::get_next_token::number::tests::number_literals_no_negative_symbol_at_postitions_other_than_the_first ... ok
[INFO] [stdout] test tokenizer::get_next_token::collate::tests::expect_failure_when_json_runs_out ... ok
[INFO] [stdout] test tokenizer::get_next_token::tests::invalid_character ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 59 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/can_parse_correct_json-174250fb14489776
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test integration_can_use_errors_in_public_interface ... ok
[INFO] [stdout] test integration_test_more_depth_two_spaces ... ok
[INFO] [stdout] test integration_test_max_depth_one ... ok
[INFO] [stdout] test integration_test_more_depth_tabs ... ok
[INFO] [stdout] test integration_test_more_depth ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests jsonist
[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
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "a6ab2ffa7d74b699a60bdf1fa10248d5dc47cb08d1a56c9a2e1dd4d179653bf0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a6ab2ffa7d74b699a60bdf1fa10248d5dc47cb08d1a56c9a2e1dd4d179653bf0", kill_on_drop: false }`
[INFO] [stdout] a6ab2ffa7d74b699a60bdf1fa10248d5dc47cb08d1a56c9a2e1dd4d179653bf0