[INFO] fetching crate jsonm 0.2.0...
[INFO] testing jsonm-0.2.0 against try#8262275854dc0e5381c9d42d56257d94932c5a87 for pr-90799
[INFO] extracting crate jsonm 0.2.0 into /workspace/builds/worker-16/source
[INFO] validating manifest of crates.io crate jsonm 0.2.0 on toolchain 8262275854dc0e5381c9d42d56257d94932c5a87
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "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-16/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c35f91afe728a36ca7d10ea4a32edde4f9f556655323c6f74dee5354466b3be8
[INFO] running `Command { std: "docker" "start" "-a" "c35f91afe728a36ca7d10ea4a32edde4f9f556655323c6f74dee5354466b3be8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c35f91afe728a36ca7d10ea4a32edde4f9f556655323c6f74dee5354466b3be8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c35f91afe728a36ca7d10ea4a32edde4f9f556655323c6f74dee5354466b3be8", kill_on_drop: false }`
[INFO] [stdout] c35f91afe728a36ca7d10ea4a32edde4f9f556655323c6f74dee5354466b3be8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ead2a8187514d801e42d5afacab05f9d97cc489ea15dfa97a42d541767908914
[INFO] running `Command { std: "docker" "start" "-a" "ead2a8187514d801e42d5afacab05f9d97cc489ea15dfa97a42d541767908914", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling ryu v1.0.6
[INFO] [stderr]    Compiling serde_json v1.0.72
[INFO] [stderr]    Compiling hashbrown v0.11.2
[INFO] [stderr]    Compiling itoa v0.4.8
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling indexmap v1.7.0
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling regex v1.5.4
[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] 
[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] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.33s
[INFO] running `Command { std: "docker" "inspect" "ead2a8187514d801e42d5afacab05f9d97cc489ea15dfa97a42d541767908914", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ead2a8187514d801e42d5afacab05f9d97cc489ea15dfa97a42d541767908914", kill_on_drop: false }`
[INFO] [stdout] ead2a8187514d801e42d5afacab05f9d97cc489ea15dfa97a42d541767908914
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c1006d16504f7b23d00c8dbbaeecff4f73a5cef3f3a603b152d26196a3f10250
[INFO] running `Command { std: "docker" "start" "-a" "c1006d16504f7b23d00c8dbbaeecff4f73a5cef3f3a603b152d26196a3f10250", kill_on_drop: false }`
[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] 
[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] 
[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] 
[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] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 3.28s
[INFO] running `Command { std: "docker" "inspect" "c1006d16504f7b23d00c8dbbaeecff4f73a5cef3f3a603b152d26196a3f10250", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c1006d16504f7b23d00c8dbbaeecff4f73a5cef3f3a603b152d26196a3f10250", kill_on_drop: false }`
[INFO] [stdout] c1006d16504f7b23d00c8dbbaeecff4f73a5cef3f3a603b152d26196a3f10250
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] e4137db2b7c0c2c8f1c1ac628c84dd006cd9f3cca4aa33bdc9b103f6f3e959c8
[INFO] running `Command { std: "docker" "start" "-a" "e4137db2b7c0c2c8f1c1ac628c84dd006cd9f3cca4aa33bdc9b103f6f3e959c8", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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] 
[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] 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 0.11s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/jsonm-d305f66b29d8e8d0)
[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] [stderr]      Running tests/test_packer.rs (/opt/rustwide/target/debug/deps/test_packer-5c7625917500bfd1)
[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_handles_small_messages_with_more_values_than_dictionary_size_2 ... ok
[INFO] [stdout] test it_packs_dot_number_string_just_fine ... ok
[INFO] [stdout] test it_packs_empty_string ... ok
[INFO] [stdout] test it_packs_null ... ok
[INFO] [stdout] test it_has_symmetrical_pack_string_and_unpack_string_for_strings ... ok
[INFO] [stdout] test it_handles_strings_and_ints_with_the_same_value ... ok
[INFO] [stdout] test it_packs_floats_just_fine ... ok
[INFO] [stdout] test it_packs_arrays_using_minus_1 ... ok
[INFO] [stdout] test it_packs_arrays_with_minus_1_just_fine ... ok
[INFO] [stdout] test it_packs_multi_line_strings_as_separate_values_in_string_packing_mode ... ok
[INFO] [stdout] test it_packs_true_just_fine ... ok
[INFO] [stdout] test it_packs_empty_string_inside_object ... ok
[INFO] [stdout] test it_packs_multi_line_strings_as_normal_values ... ok
[INFO] [stdout] test it_packs_large_integers_as_string_values ... ok
[INFO] [stdout] test it_packs_null_inside_object ... ok
[INFO] [stdout] test it_packs_small_integers_as_string_values ... ok
[INFO] [stdout] test it_packs_number_string_just_fine ... ok
[INFO] [stdout] test it_packs_nested_arrays_and_objects ... ok
[INFO] [stdout] test it_errors_when_the_packer_is_reset_during_message ... 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_tilde_strings_just_fine ... ok
[INFO] [stdout] test it_packs_tilde_tilde_strings_just_fine ... ok
[INFO] [stdout] test it_handles_small_messages_with_more_values_than_dictionary_size ... ok
[INFO] [stdout] test it_packs_strings_2_level_deep ... ok
[INFO] [stdout] test it_handles_small_messages_with_more_values_than_dictionary_size_3 ... ok
[INFO] [stdout] test it_packs_strings_1_level_deep ... ok
[INFO] [stdout] test it_uses_memoization_the_second_time ... ok
[INFO] [stdout] test it_packs_multi_key_objects ... ok
[INFO] [stdout] test it_supports_reset ... ok
[INFO] [stdout] test it_doesnot_pack_very_large_nonscalars ... ok
[INFO] [stdout] test it_has_no_issues_going_over_a_very_small_dictionary_size ... ok
[INFO] [stdout] test it_packs_with_null_and_true_and_false ... ok
[INFO] [stdout] test it_handles_packer_being_reset ... ok
[INFO] [stdout] test it_handles_large_messages_with_more_values_than_dictionary_size_that_contains_null ... ok
[INFO] [stdout] test it_handles_large_messages_with_more_values_than_dictionary_size ... ok
[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 1.24s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests jsonm
[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" "e4137db2b7c0c2c8f1c1ac628c84dd006cd9f3cca4aa33bdc9b103f6f3e959c8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e4137db2b7c0c2c8f1c1ac628c84dd006cd9f3cca4aa33bdc9b103f6f3e959c8", kill_on_drop: false }`
[INFO] [stdout] e4137db2b7c0c2c8f1c1ac628c84dd006cd9f3cca4aa33bdc9b103f6f3e959c8