[INFO] fetching crate jsonm 0.2.0...
[INFO] testing jsonm-0.2.0 against beta-2022-04-10 for beta-1.61-1
[INFO] extracting crate jsonm 0.2.0 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate jsonm 0.2.0 on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate jsonm 0.2.0
[INFO] finished tweaking crates.io crate jsonm 0.2.0
[INFO] tweaked toml for crates.io crate jsonm 0.2.0 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 79b339d528518422f70ae8edbdd2a5a0f724214598af97079ba21d068b4aae37
[INFO] running `Command { std: "docker" "start" "-a" "79b339d528518422f70ae8edbdd2a5a0f724214598af97079ba21d068b4aae37", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "79b339d528518422f70ae8edbdd2a5a0f724214598af97079ba21d068b4aae37", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "79b339d528518422f70ae8edbdd2a5a0f724214598af97079ba21d068b4aae37", kill_on_drop: false }`
[INFO] [stdout] 79b339d528518422f70ae8edbdd2a5a0f724214598af97079ba21d068b4aae37
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] eb7379f87e090352afe16a98beaa6284ed51806e1d5a893cb22084fba5f25f24
[INFO] running `Command { std: "docker" "start" "-a" "eb7379f87e090352afe16a98beaa6284ed51806e1d5a893cb22084fba5f25f24", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde_json v1.0.79
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling regex v1.5.5
[INFO] [stderr]    Compiling jsonm v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `cause`
[INFO] [stdout]   --> src/packer.rs:53:5
[INFO] [stdout]    |
[INFO] [stdout] 53 |     cause: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] note: `PackerError` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/packer.rs:51:10
[INFO] [stdout]    |
[INFO] [stdout] 51 | #[derive(Debug, Clone)]
[INFO] [stdout]    |          ^^^^^  ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `pending_unpacks`
[INFO] [stdout]   --> src/unpacker.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 26 |     pending_unpacks: Vec<i32>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: `Unpacker` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/unpacker.rs:20:19
[INFO] [stdout]    |
[INFO] [stdout] 20 | #[derive(Default, Debug)]
[INFO] [stdout]    |                   ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.45s
[INFO] running `Command { std: "docker" "inspect" "eb7379f87e090352afe16a98beaa6284ed51806e1d5a893cb22084fba5f25f24", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eb7379f87e090352afe16a98beaa6284ed51806e1d5a893cb22084fba5f25f24", kill_on_drop: false }`
[INFO] [stdout] eb7379f87e090352afe16a98beaa6284ed51806e1d5a893cb22084fba5f25f24
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cec19702bbf69095b0e5cd844ce29a1413c4ccfb8cdd09f34fc1d484d5e7281d
[INFO] running `Command { std: "docker" "start" "-a" "cec19702bbf69095b0e5cd844ce29a1413c4ccfb8cdd09f34fc1d484d5e7281d", kill_on_drop: false }`
[INFO] [stdout] warning: field is never read: `cause`
[INFO] [stdout]   --> src/packer.rs:53:5
[INFO] [stdout]    |
[INFO] [stdout] 53 |     cause: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] note: `PackerError` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/packer.rs:51:10
[INFO] [stdout]    |
[INFO] [stdout] 51 | #[derive(Debug, Clone)]
[INFO] [stdout]    |          ^^^^^  ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling jsonm v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `pending_unpacks`
[INFO] [stdout]   --> src/unpacker.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 26 |     pending_unpacks: Vec<i32>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: `Unpacker` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/unpacker.rs:20:19
[INFO] [stdout]    |
[INFO] [stdout] 20 | #[derive(Default, Debug)]
[INFO] [stdout]    |                   ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `cause`
[INFO] [stdout]   --> src/packer.rs:53:5
[INFO] [stdout]    |
[INFO] [stdout] 53 |     cause: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] note: `PackerError` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/packer.rs:51:10
[INFO] [stdout]    |
[INFO] [stdout] 51 | #[derive(Debug, Clone)]
[INFO] [stdout]    |          ^^^^^  ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `pending_unpacks`
[INFO] [stdout]   --> src/unpacker.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 26 |     pending_unpacks: Vec<i32>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: `Unpacker` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/unpacker.rs:20:19
[INFO] [stdout]    |
[INFO] [stdout] 20 | #[derive(Default, Debug)]
[INFO] [stdout]    |                   ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.56s
[INFO] [stderr]   Executable unittests src/lib.rs (/opt/rustwide/target/debug/deps/jsonm-b11d4861d61ebc92)
[INFO] [stderr]   Executable tests/test_packer.rs (/opt/rustwide/target/debug/deps/test_packer-7b2a61e76ff6bc8f)
[INFO] running `Command { std: "docker" "inspect" "cec19702bbf69095b0e5cd844ce29a1413c4ccfb8cdd09f34fc1d484d5e7281d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cec19702bbf69095b0e5cd844ce29a1413c4ccfb8cdd09f34fc1d484d5e7281d", kill_on_drop: false }`
[INFO] [stdout] cec19702bbf69095b0e5cd844ce29a1413c4ccfb8cdd09f34fc1d484d5e7281d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 6bcf0ba4de4a2097ea2fd36f346e7ab9d58b7766a395deff40d0453895e6187b
[INFO] running `Command { std: "docker" "start" "-a" "6bcf0ba4de4a2097ea2fd36f346e7ab9d58b7766a395deff40d0453895e6187b", kill_on_drop: false }`
[INFO] [stderr] warning: field is never read: `cause`
[INFO] [stderr]   --> src/packer.rs:53:5
[INFO] [stderr]    |
[INFO] [stderr] 53 |     cause: String,
[INFO] [stderr]    |     ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] note: `PackerError` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stderr]   --> src/packer.rs:51:10
[INFO] [stderr]    |
[INFO] [stderr] 51 | #[derive(Debug, Clone)]
[INFO] [stderr]    |          ^^^^^  ^^^^^
[INFO] [stderr]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `pending_unpacks`
[INFO] [stderr]   --> src/unpacker.rs:26:5
[INFO] [stderr]    |
[INFO] [stderr] 26 |     pending_unpacks: Vec<i32>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr] note: `Unpacker` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]   --> src/unpacker.rs:20:19
[INFO] [stderr]    |
[INFO] [stderr] 20 | #[derive(Default, Debug)]
[INFO] [stderr]    |                   ^^^^^
[INFO] [stderr]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: `jsonm` (lib) generated 2 warnings
[INFO] [stderr] warning: `jsonm` (lib test) generated 2 warnings (2 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/jsonm-b11d4861d61ebc92)
[INFO] [stderr]      Running tests/test_packer.rs (/opt/rustwide/target/debug/deps/test_packer-7b2a61e76ff6bc8f)
[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] [stdout] 
[INFO] [stdout] running 42 tests
[INFO] [stdout] test it_copes_with_null_input_to_unpacker ... ok
[INFO] [stdout] test it_packs_empty_arrays_just_fine ... ok
[INFO] [stdout] test it_copes_with_calling_unpack_multiple_times ... ok
[INFO] [stdout] test it_copes_with_messages_in_wrong_order ... ok
[INFO] [stdout] test it_packs_arrays_with_minus_1_just_fine ... ok
[INFO] [stdout] test it_errors_when_the_packer_is_reset_during_message ... ok
[INFO] [stdout] test it_packs_floats_just_fine ... ok
[INFO] [stdout] test it_packs_multi_line_strings_as_normal_values ... ok
[INFO] [stdout] test it_handles_strings_and_ints_with_the_same_value ... ok
[INFO] [stdout] test it_has_symmetrical_pack_string_and_unpack_string_for_strings ... ok
[INFO] [stdout] test it_handles_small_messages_with_more_values_than_dictionary_size_3 ... ok
[INFO] [stdout] test it_packs_empty_string ... ok
[INFO] [stdout] test it_packs_null ... ok
[INFO] [stdout] test it_handles_small_messages_with_more_values_than_dictionary_size_2 ... ok
[INFO] [stdout] test it_packs_empty_string_inside_object ... ok
[INFO] [stdout] test it_handles_small_messages_with_more_values_than_dictionary_size ... ok
[INFO] [stdout] test it_packs_null_inside_object ... ok
[INFO] [stdout] test it_packs_dot_number_string_just_fine ... ok
[INFO] [stdout] test it_doesnot_pack_very_large_nonscalars ... ok
[INFO] [stdout] test it_handles_packer_being_reset ... ok
[INFO] [stdout] test it_packs_large_integers_as_string_values ... ok
[INFO] [stdout] test it_packs_multi_key_objects ... ok
[INFO] [stdout] test it_packs_arrays_using_minus_1 ... ok
[INFO] [stdout] test it_packs_nested_arrays_and_objects ... ok
[INFO] [stdout] test it_packs_true_just_fine ... ok
[INFO] [stdout] test it_packs_json_strings_and_can_unpack_them_as_string ... ok
[INFO] [stdout] test it_packs_json_strings ... ok
[INFO] [stdout] test it_packs_multiple_empty_strings_inside_object ... ok
[INFO] [stdout] test it_packs_strings_2_level_deep ... ok
[INFO] [stdout] test it_packs_number_string_just_fine ... ok
[INFO] [stdout] test it_packs_small_integers_as_string_values ... ok
[INFO] [stdout] test it_packs_tilde_strings_just_fine ... ok
[INFO] [stdout] test it_packs_tilde_tilde_strings_just_fine ... ok
[INFO] [stdout] test it_has_no_issues_going_over_a_very_small_dictionary_size ... ok
[INFO] [stdout] test it_packs_multi_line_strings_as_separate_values_in_string_packing_mode ... ok
[INFO] [stdout] test it_packs_strings_1_level_deep ... ok
[INFO] [stdout] test it_supports_reset ... ok
[INFO] [stdout] test it_uses_memoization_the_second_time ... ok
[INFO] [stdout] test it_packs_with_null_and_true_and_false ... ok
[INFO] [stdout] test it_handles_large_messages_with_more_values_than_dictionary_size ... ok
[INFO] [stdout] test it_handles_large_messages_with_more_values_than_dictionary_size_that_contains_null ... ok
[INFO] [stderr]    Doc-tests jsonm
[INFO] [stdout] test it_has_no_issues_going_over_dictionary_size ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 42 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.04s
[INFO] [stdout] 
[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" "6bcf0ba4de4a2097ea2fd36f346e7ab9d58b7766a395deff40d0453895e6187b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6bcf0ba4de4a2097ea2fd36f346e7ab9d58b7766a395deff40d0453895e6187b", kill_on_drop: false }`
[INFO] [stdout] 6bcf0ba4de4a2097ea2fd36f346e7ab9d58b7766a395deff40d0453895e6187b