[INFO] fetching crate tree_decorator 0.1.2...
[INFO] testing tree_decorator-0.1.2 against beta-2023-04-20 for beta-1.70-1
[INFO] extracting crate tree_decorator 0.1.2 into /workspace/builds/worker-0-tc2/source
[INFO] validating manifest of crates.io crate tree_decorator 0.1.2 on toolchain beta-2023-04-20
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-04-20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate tree_decorator 0.1.2
[INFO] finished tweaking crates.io crate tree_decorator 0.1.2
[INFO] tweaked toml for crates.io crate tree_decorator 0.1.2 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" __CARGO_TEST_CHANNEL_OVERRIDE_DO_NOT_USE_THIS="nightly" "/workspace/cargo-home/bin/cargo" "+beta-2023-04-20" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-04-20" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-04-20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 604ad558313462d7a292ca18d619d37dc95ee6bf4b6cb6a33223cc6fe9392499
[INFO] running `Command { std: "docker" "start" "-a" "604ad558313462d7a292ca18d619d37dc95ee6bf4b6cb6a33223cc6fe9392499", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "604ad558313462d7a292ca18d619d37dc95ee6bf4b6cb6a33223cc6fe9392499", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "604ad558313462d7a292ca18d619d37dc95ee6bf4b6cb6a33223cc6fe9392499", kill_on_drop: false }`
[INFO] [stdout] 604ad558313462d7a292ca18d619d37dc95ee6bf4b6cb6a33223cc6fe9392499
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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" "RUSTDOCFLAGS=--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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-04-20" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 820b61b7d573aecc2b37df5ad04a5d1c60e89c3983e846caf9a43f4458ae8fdb
[INFO] running `Command { std: "docker" "start" "-a" "820b61b7d573aecc2b37df5ad04a5d1c60e89c3983e846caf9a43f4458ae8fdb", kill_on_drop: false }`
[INFO] [stderr]    Compiling tree_decorator v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `style` is never read
[INFO] [stdout]    --> src/element_handler.rs:112:9
[INFO] [stdout]     |
[INFO] [stdout] 110 | struct Block {
[INFO] [stdout]     |        ----- field in this struct
[INFO] [stdout] 111 |     pub representation: String,
[INFO] [stdout] 112 |     pub style: Style
[INFO] [stdout]     |         ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.18s
[INFO] running `Command { std: "docker" "inspect" "820b61b7d573aecc2b37df5ad04a5d1c60e89c3983e846caf9a43f4458ae8fdb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "820b61b7d573aecc2b37df5ad04a5d1c60e89c3983e846caf9a43f4458ae8fdb", kill_on_drop: false }`
[INFO] [stdout] 820b61b7d573aecc2b37df5ad04a5d1c60e89c3983e846caf9a43f4458ae8fdb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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" "RUSTDOCFLAGS=--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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-04-20" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 109313a878d0104889e599a4df40f7b72f9f3ea8839d47c412f5b31aae378237
[INFO] running `Command { std: "docker" "start" "-a" "109313a878d0104889e599a4df40f7b72f9f3ea8839d47c412f5b31aae378237", kill_on_drop: false }`
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling time v0.3.20
[INFO] [stdout] warning: field `style` is never read
[INFO] [stdout]    --> src/element_handler.rs:112:9
[INFO] [stdout]     |
[INFO] [stdout] 110 | struct Block {
[INFO] [stdout]     |        ----- field in this struct
[INFO] [stdout] 111 |     pub representation: String,
[INFO] [stdout] 112 |     pub style: Style
[INFO] [stdout]     |         ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling colored v1.9.3
[INFO] [stderr]    Compiling simple_logger v1.16.0
[INFO] [stderr]    Compiling tree_decorator v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused return value of `String::as_str` that must be used
[INFO] [stdout]   --> tests/test_items_level.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     tree_item!(block, "Root");
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `tree_item` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `String::as_str` that must be used
[INFO] [stdout]   --> tests/test_multiple_nested_levels.rs:30:5
[INFO] [stdout]    |
[INFO] [stdout] 30 |     tree_item!(block, "Very Nested Items");
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `tree_item` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `String::as_str` that must be used
[INFO] [stdout]   --> tests/test_multiple_nested_levels.rs:32:5
[INFO] [stdout]    |
[INFO] [stdout] 32 |     tree_item!("A");
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `tree_item` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `String::as_str` that must be used
[INFO] [stdout]   --> tests/test_multiple_nested_levels.rs:33:5
[INFO] [stdout]    |
[INFO] [stdout] 33 |     tree_item!(block, "B");
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `tree_item` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `String::as_str` that must be used
[INFO] [stdout]   --> tests/test_multiple_nested_levels.rs:35:9
[INFO] [stdout]    |
[INFO] [stdout] 35 |         tree_item!(block; last, "B.a");
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `tree_item` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `String::as_str` that must be used
[INFO] [stdout]   --> tests/test_multiple_nested_levels.rs:37:13
[INFO] [stdout]    |
[INFO] [stdout] 37 |             tree_item!("B.a.a");
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `tree_item` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `String::as_str` that must be used
[INFO] [stdout]   --> tests/test_multiple_nested_levels.rs:38:13
[INFO] [stdout]    |
[INFO] [stdout] 38 |             tree_item!("B.a.b");
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `tree_item` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `String::as_str` that must be used
[INFO] [stdout]   --> tests/test_multiple_nested_levels.rs:39:13
[INFO] [stdout]    |
[INFO] [stdout] 39 |             tree_item!("B.a.c");
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `tree_item` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `String::as_str` that must be used
[INFO] [stdout]   --> tests/test_multiple_nested_levels.rs:40:13
[INFO] [stdout]    |
[INFO] [stdout] 40 |             tree_item!(block, "B.a.c");
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `tree_item` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `String::as_str` that must be used
[INFO] [stdout]   --> tests/test_multiple_nested_levels.rs:42:17
[INFO] [stdout]    |
[INFO] [stdout] 42 |                 tree_item!("B.a.c.a");
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `tree_item` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `String::as_str` that must be used
[INFO] [stdout]   --> tests/test_multiple_nested_levels.rs:43:17
[INFO] [stdout]    |
[INFO] [stdout] 43 |                 tree_item!("B.a.c.b");
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `tree_item` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `String::as_str` that must be used
[INFO] [stdout]   --> tests/test_multiple_nested_levels.rs:44:17
[INFO] [stdout]    |
[INFO] [stdout] 44 |                 tree_item!(last, "B.a.c.c");
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `tree_item` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `String::as_str` that must be used
[INFO] [stdout]   --> tests/test_multiple_nested_levels.rs:46:13
[INFO] [stdout]    |
[INFO] [stdout] 46 |             tree_item!(last, "B.a.d");
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `tree_item` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `String::as_str` that must be used
[INFO] [stdout]   --> tests/test_multiple_nested_levels.rs:50:5
[INFO] [stdout]    |
[INFO] [stdout] 50 |     tree_item!("C");
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `tree_item` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `String::as_str` that must be used
[INFO] [stdout]   --> tests/test_multiple_nested_levels.rs:51:5
[INFO] [stdout]    |
[INFO] [stdout] 51 |     tree_item!("D");
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `tree_item` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `String::as_str` that must be used
[INFO] [stdout]   --> tests/test_multiple_nested_levels.rs:52:5
[INFO] [stdout]    |
[INFO] [stdout] 52 |     tree_item!("E");
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `tree_item` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `String::as_str` that must be used
[INFO] [stdout]   --> tests/test_multiple_nested_levels.rs:53:5
[INFO] [stdout]    |
[INFO] [stdout] 53 |     tree_item!(last, "F");
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `tree_item` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `String::as_str` that must be used
[INFO] [stdout]   --> tests/test_output.rs:32:5
[INFO] [stdout]    |
[INFO] [stdout] 32 |     tree_item!(block, "Root");
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `tree_item` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `style` is never read
[INFO] [stdout]    --> src/element_handler.rs:112:9
[INFO] [stdout]     |
[INFO] [stdout] 110 | struct Block {
[INFO] [stdout]     |        ----- field in this struct
[INFO] [stdout] 111 |     pub representation: String,
[INFO] [stdout] 112 |     pub style: Style
[INFO] [stdout]     |         ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `String::as_str` that must be used
[INFO] [stdout]   --> tests/test_output.rs:34:9
[INFO] [stdout]    |
[INFO] [stdout] 34 |         tree_item!(entry, "Item A");
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `tree_item` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `String::as_str` that must be used
[INFO] [stdout]   --> tests/test_output.rs:35:9
[INFO] [stdout]    |
[INFO] [stdout] 35 |         tree_item!(entry: Entry::None, "Small Description");
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `tree_item` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `String::as_str` that must be used
[INFO] [stdout]   --> tests/test_output.rs:36:9
[INFO] [stdout]    |
[INFO] [stdout] 36 |         tree_item!(dashed, "Other Small Description");
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `tree_item` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `String::as_str` that must be used
[INFO] [stdout]   --> tests/test_output.rs:37:9
[INFO] [stdout]    |
[INFO] [stdout] 37 |         tree_item!(last; block, "Item B");
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `tree_item` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `String::as_str` that must be used
[INFO] [stdout]   --> tests/test_output.rs:39:13
[INFO] [stdout]    |
[INFO] [stdout] 39 |             tree_item!("Item Ba");
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `tree_item` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `String::as_str` that must be used
[INFO] [stdout]   --> tests/test_output.rs:40:13
[INFO] [stdout]    |
[INFO] [stdout] 40 |             tree_item!(block, "Item Bb");
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `tree_item` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `String::as_str` that must be used
[INFO] [stdout]   --> tests/test_output.rs:42:17
[INFO] [stdout]    |
[INFO] [stdout] 42 |                 tree_item!(last, "Item Bba");
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `tree_item` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `String::as_str` that must be used
[INFO] [stdout]   --> tests/test_output.rs:44:13
[INFO] [stdout]    |
[INFO] [stdout] 44 |             tree_item!(last, "Item Bc");
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `tree_item` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `String::as_str` that must be used
[INFO] [stdout]   --> tests/test_items_level.rs:15:9
[INFO] [stdout]    |
[INFO] [stdout] 15 |         tree_item!("Item A");
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `tree_item` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `String::as_str` that must be used
[INFO] [stdout]   --> tests/test_items_level.rs:16:9
[INFO] [stdout]    |
[INFO] [stdout] 16 |         tree_item!("Small Description");
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `tree_item` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `String::as_str` that must be used
[INFO] [stdout]   --> tests/test_items_level.rs:17:9
[INFO] [stdout]    |
[INFO] [stdout] 17 |         tree_item!("Other Small Description");
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `tree_item` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `String::as_str` that must be used
[INFO] [stdout]   --> tests/test_items_level.rs:18:9
[INFO] [stdout]    |
[INFO] [stdout] 18 |         tree_item!(last; block, "Item B");
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `tree_item` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `String::as_str` that must be used
[INFO] [stdout]   --> tests/test_items_level.rs:20:13
[INFO] [stdout]    |
[INFO] [stdout] 20 |             tree_item!("Item Ba");
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `tree_item` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `String::as_str` that must be used
[INFO] [stdout]   --> tests/test_items_level.rs:21:13
[INFO] [stdout]    |
[INFO] [stdout] 21 |             tree_item!(block, "Item Bb");
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `tree_item` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `String::as_str` that must be used
[INFO] [stdout]   --> tests/test_items_level.rs:23:17
[INFO] [stdout]    |
[INFO] [stdout] 23 |                 tree_item!(last, "Item Bba");
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `tree_item` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `String::as_str` that must be used
[INFO] [stdout]   --> tests/test_items_level.rs:25:13
[INFO] [stdout]    |
[INFO] [stdout] 25 |             tree_item!(last, "Item Bc");
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `tree_item` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 16 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.73s
[INFO] running `Command { std: "docker" "inspect" "109313a878d0104889e599a4df40f7b72f9f3ea8839d47c412f5b31aae378237", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "109313a878d0104889e599a4df40f7b72f9f3ea8839d47c412f5b31aae378237", kill_on_drop: false }`
[INFO] [stdout] 109313a878d0104889e599a4df40f7b72f9f3ea8839d47c412f5b31aae378237
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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" "RUSTDOCFLAGS=--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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-04-20" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 12a32e80fe90d15dd0c82d4fca16dcf762605d761b29c33334518d3dc68cf28f
[INFO] running `Command { std: "docker" "start" "-a" "12a32e80fe90d15dd0c82d4fca16dcf762605d761b29c33334518d3dc68cf28f", kill_on_drop: false }`
[INFO] [stderr] warning: field `style` is never read
[INFO] [stderr]    --> src/element_handler.rs:112:9
[INFO] [stderr]     |
[INFO] [stderr] 110 | struct Block {
[INFO] [stderr]     |        ----- field in this struct
[INFO] [stderr] 111 |     pub representation: String,
[INFO] [stderr] 112 |     pub style: Style
[INFO] [stderr]     |         ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `tree_decorator` (lib) generated 1 warning
[INFO] [stderr] warning: unused return value of `String::as_str` that must be used
[INFO] [stderr]   --> tests/test_output.rs:32:5
[INFO] [stderr]    |
[INFO] [stderr] 32 |     tree_item!(block, "Root");
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this warning originates in the macro `tree_item` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `String::as_str` that must be used
[INFO] [stderr]   --> tests/test_output.rs:34:9
[INFO] [stderr]    |
[INFO] [stderr] 34 |         tree_item!(entry, "Item A");
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in the macro `tree_item` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `String::as_str` that must be used
[INFO] [stderr]   --> tests/test_output.rs:35:9
[INFO] [stderr]    |
[INFO] [stderr] 35 |         tree_item!(entry: Entry::None, "Small Description");
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in the macro `tree_item` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `String::as_str` that must be used
[INFO] [stderr]   --> tests/test_output.rs:36:9
[INFO] [stderr]    |
[INFO] [stderr] 36 |         tree_item!(dashed, "Other Small Description");
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in the macro `tree_item` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `String::as_str` that must be used
[INFO] [stderr]   --> tests/test_output.rs:37:9
[INFO] [stderr]    |
[INFO] [stderr] 37 |         tree_item!(last; block, "Item B");
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in the macro `tree_item` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `String::as_str` that must be used
[INFO] [stderr]   --> tests/test_output.rs:39:13
[INFO] [stderr]    |
[INFO] [stderr] 39 |             tree_item!("Item Ba");
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in the macro `tree_item` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `String::as_str` that must be used
[INFO] [stderr]   --> tests/test_output.rs:40:13
[INFO] [stderr]    |
[INFO] [stderr] 40 |             tree_item!(block, "Item Bb");
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in the macro `tree_item` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `String::as_str` that must be used
[INFO] [stderr]   --> tests/test_output.rs:42:17
[INFO] [stderr]    |
[INFO] [stderr] 42 |                 tree_item!(last, "Item Bba");
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in the macro `tree_item` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `String::as_str` that must be used
[INFO] [stderr]   --> tests/test_output.rs:44:13
[INFO] [stderr]    |
[INFO] [stderr] 44 |             tree_item!(last, "Item Bc");
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in the macro `tree_item` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `String::as_str` that must be used
[INFO] [stderr]   --> tests/test_multiple_nested_levels.rs:30:5
[INFO] [stderr]    |
[INFO] [stderr] 30 |     tree_item!(block, "Very Nested Items");
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this warning originates in the macro `tree_item` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `String::as_str` that must be used
[INFO] [stderr]   --> tests/test_multiple_nested_levels.rs:32:5
[INFO] [stderr]    |
[INFO] [stderr] 32 |     tree_item!("A");
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in the macro `tree_item` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `String::as_str` that must be used
[INFO] [stderr]   --> tests/test_multiple_nested_levels.rs:33:5
[INFO] [stderr]    |
[INFO] [stderr] 33 |     tree_item!(block, "B");
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in the macro `tree_item` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `String::as_str` that must be used
[INFO] [stderr]   --> tests/test_multiple_nested_levels.rs:35:9
[INFO] [stderr]    |
[INFO] [stderr] 35 |         tree_item!(block; last, "B.a");
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in the macro `tree_item` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `String::as_str` that must be used
[INFO] [stderr]   --> tests/test_multiple_nested_levels.rs:37:13
[INFO] [stderr]    |
[INFO] [stderr] 37 |             tree_item!("B.a.a");
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in the macro `tree_item` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `String::as_str` that must be used
[INFO] [stderr]   --> tests/test_multiple_nested_levels.rs:38:13
[INFO] [stderr]    |
[INFO] [stderr] 38 |             tree_item!("B.a.b");
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in the macro `tree_item` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `String::as_str` that must be used
[INFO] [stderr]   --> tests/test_multiple_nested_levels.rs:39:13
[INFO] [stderr]    |
[INFO] [stderr] 39 |             tree_item!("B.a.c");
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in the macro `tree_item` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `String::as_str` that must be used
[INFO] [stderr]   --> tests/test_multiple_nested_levels.rs:40:13
[INFO] [stderr]    |
[INFO] [stderr] 40 |             tree_item!(block, "B.a.c");
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in the macro `tree_item` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `String::as_str` that must be used
[INFO] [stderr]   --> tests/test_multiple_nested_levels.rs:42:17
[INFO] [stderr]    |
[INFO] [stderr] 42 |                 tree_item!("B.a.c.a");
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in the macro `tree_item` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `String::as_str` that must be used
[INFO] [stderr]   --> tests/test_multiple_nested_levels.rs:43:17
[INFO] [stderr]    |
[INFO] [stderr] 43 |                 tree_item!("B.a.c.b");
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in the macro `tree_item` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `String::as_str` that must be used
[INFO] [stderr]   --> tests/test_multiple_nested_levels.rs:44:17
[INFO] [stderr]    |
[INFO] [stderr] 44 |                 tree_item!(last, "B.a.c.c");
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in the macro `tree_item` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `String::as_str` that must be used
[INFO] [stderr]   --> tests/test_multiple_nested_levels.rs:46:13
[INFO] [stderr]    |
[INFO] [stderr] 46 |             tree_item!(last, "B.a.d");
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in the macro `tree_item` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `String::as_str` that must be used
[INFO] [stderr]   --> tests/test_multiple_nested_levels.rs:50:5
[INFO] [stderr]    |
[INFO] [stderr] 50 |     tree_item!("C");
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in the macro `tree_item` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `String::as_str` that must be used
[INFO] [stderr]   --> tests/test_multiple_nested_levels.rs:51:5
[INFO] [stderr]    |
[INFO] [stderr] 51 |     tree_item!("D");
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in the macro `tree_item` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `String::as_str` that must be used
[INFO] [stderr]   --> tests/test_multiple_nested_levels.rs:52:5
[INFO] [stderr]    |
[INFO] [stderr] 52 |     tree_item!("E");
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in the macro `tree_item` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `String::as_str` that must be used
[INFO] [stderr]   --> tests/test_multiple_nested_levels.rs:53:5
[INFO] [stderr]    |
[INFO] [stderr] 53 |     tree_item!(last, "F");
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in the macro `tree_item` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `String::as_str` that must be used
[INFO] [stderr]   --> tests/test_items_level.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 |     tree_item!(block, "Root");
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this warning originates in the macro `tree_item` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `String::as_str` that must be used
[INFO] [stderr]   --> tests/test_items_level.rs:15:9
[INFO] [stderr]    |
[INFO] [stderr] 15 |         tree_item!("Item A");
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in the macro `tree_item` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `String::as_str` that must be used
[INFO] [stderr]   --> tests/test_items_level.rs:16:9
[INFO] [stderr]    |
[INFO] [stderr] 16 |         tree_item!("Small Description");
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in the macro `tree_item` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `String::as_str` that must be used
[INFO] [stderr]   --> tests/test_items_level.rs:17:9
[INFO] [stderr]    |
[INFO] [stderr] 17 |         tree_item!("Other Small Description");
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in the macro `tree_item` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `String::as_str` that must be used
[INFO] [stderr]   --> tests/test_items_level.rs:18:9
[INFO] [stderr]    |
[INFO] [stderr] 18 |         tree_item!(last; block, "Item B");
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in the macro `tree_item` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `String::as_str` that must be used
[INFO] [stderr]   --> tests/test_items_level.rs:20:13
[INFO] [stderr]    |
[INFO] [stderr] 20 |             tree_item!("Item Ba");
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in the macro `tree_item` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `String::as_str` that must be used
[INFO] [stderr]   --> tests/test_items_level.rs:21:13
[INFO] [stderr]    |
[INFO] [stderr] 21 |             tree_item!(block, "Item Bb");
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in the macro `tree_item` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `String::as_str` that must be used
[INFO] [stderr]   --> tests/test_items_level.rs:23:17
[INFO] [stderr]    |
[INFO] [stderr] 23 |                 tree_item!(last, "Item Bba");
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in the macro `tree_item` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `String::as_str` that must be used
[INFO] [stderr]   --> tests/test_items_level.rs:25:13
[INFO] [stderr]    |
[INFO] [stderr] 25 |             tree_item!(last, "Item Bc");
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in the macro `tree_item` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: `tree_decorator` (test "test_output") generated 9 warnings
[INFO] [stderr] warning: `tree_decorator` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr] warning: `tree_decorator` (test "test_multiple_nested_levels") generated 16 warnings
[INFO] [stderr] warning: `tree_decorator` (test "test_items_level") generated 9 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/tree_decorator-84f2cf4873d6eb82)
[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_items_level.rs (/opt/rustwide/target/debug/deps/test_items_level-9c10689e8ff9e97b)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test test_items_level ... 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] [stderr]      Running tests/test_log.rs (/opt/rustwide/target/debug/deps/test_log-ed95c379f9b373a8)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test test_output ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- test_output stdout ----
[INFO] [stdout] thread 'test_output' panicked at 'Could not determine the UTC offset on this system. Possible causes are that the time crate does not implement "local_offset_at" on your system, or that you are running in a multi-threaded environment and the time crate is returning "None" from "local_offset_at" to avoid unsafe behaviour. See the time crate's documentation for more information. (https://time-rs.github.io/internal-api/time/index.html#feature-flags): IndeterminateOffset', /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/simple_logger-1.16.0/src/lib.rs:409:85
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x56325d3c610a - std::backtrace_rs::backtrace::libunwind::trace::h2f05d0192276a8f6
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/../../backtrace/src/backtrace/libunwind.rs:93:5
[INFO] [stdout]    1:     0x56325d3c610a - std::backtrace_rs::backtrace::trace_unsynchronized::hedc23dff7a1af150
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stdout]    2:     0x56325d3c610a - std::sys_common::backtrace::_print_fmt::h17541ef7592f3ce2
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/sys_common/backtrace.rs:65:5
[INFO] [stdout]    3:     0x56325d3c610a - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h20f75df5ab0c0792
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/sys_common/backtrace.rs:44:22
[INFO] [stdout]    4:     0x56325d3ea34f - core::fmt::write::h78109e6f466b3af6
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/core/src/fmt/mod.rs:1254:17
[INFO] [stdout]    5:     0x56325d3c3445 - std::io::Write::write_fmt::hd24bfb68a1b35a25
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/io/mod.rs:1698:15
[INFO] [stdout]    6:     0x56325d3c5ed5 - std::sys_common::backtrace::_print::h8dac57a9f8fbf9a5
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/sys_common/backtrace.rs:47:5
[INFO] [stdout]    7:     0x56325d3c5ed5 - std::sys_common::backtrace::print::hf9ecbf41d1aa712f
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/sys_common/backtrace.rs:34:9
[INFO] [stdout]    8:     0x56325d3c7b8e - std::panicking::default_hook::{{closure}}::h04c07acfc84ca028
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/panicking.rs:269:22
[INFO] [stdout]    9:     0x56325d3c78c1 - std::panicking::default_hook::h01f6bb23e1eceb2c
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/panicking.rs:285:9
[INFO] [stdout]   10:     0x56325d39af5b - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h87fe9f7b2fd49e4c
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/alloc/src/boxed.rs:1987:9
[INFO] [stdout]   11:     0x56325d39af5b - test::test_main::{{closure}}::he94d679243a7531b
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/test/src/lib.rs:134:21
[INFO] [stdout]   12:     0x56325d3c8274 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h3f2d6d8b14c4769f
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/alloc/src/boxed.rs:1987:9
[INFO] [stdout]   13:     0x56325d3c8274 - std::panicking::rust_panic_with_hook::h2bb3722bbaf2f6df
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/panicking.rs:695:13
[INFO] [stdout]   14:     0x56325d3c7fe9 - std::panicking::begin_panic_handler::{{closure}}::h91bc7f36a4be011b
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/panicking.rs:582:13
[INFO] [stdout]   15:     0x56325d3c6576 - std::sys_common::backtrace::__rust_end_short_backtrace::h8b3d3717114f9e59
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/sys_common/backtrace.rs:150:18
[INFO] [stdout]   16:     0x56325d3c7d42 - rust_begin_unwind
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/panicking.rs:578:5
[INFO] [stdout]   17:     0x56325d32fba3 - core::panicking::panic_fmt::hfd368e3fbdabea26
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/core/src/panicking.rs:67:14
[INFO] [stdout]   18:     0x56325d3300e3 - core::result::unwrap_failed::he54eb4b2f125b26f
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/core/src/result.rs:1687:5
[INFO] [stdout]   19:     0x56325d33ba0c - core::result::Result<T,E>::expect::h7b5a4a97e9aa6e58
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/core/src/result.rs:1046:23
[INFO] [stdout]   20:     0x56325d338ac3 - <simple_logger::SimpleLogger as log::Log>::log::hbfdbed450dea2ee7
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/simple_logger-1.16.0/src/lib.rs:409:57
[INFO] [stdout]   21:     0x56325d356d2d - log::__private_api_log::h808ded0208445331
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/log-0.4.17/src/lib.rs:1597:5
[INFO] [stdout]   22:     0x56325d330ed9 - test_log::test_output::hbec15f128fbcf37b
[INFO] [stdout]                                at /opt/rustwide/workdir/tests/test_log.rs:24:5
[INFO] [stdout]   23:     0x56325d3309b7 - test_log::test_output::{{closure}}::h8cc9d517739cd3ab
[INFO] [stdout]                                at /opt/rustwide/workdir/tests/test_log.rs:3:18
[INFO] [stdout]   24:     0x56325d330455 - core::ops::function::FnOnce::call_once::h411f081b408989de
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   25:     0x56325d39fe2f - core::ops::function::FnOnce::call_once::ha6a70e79f7481a7e
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   26:     0x56325d39fe2f - test::__rust_begin_short_backtrace::hce33033019b61e69
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/test/src/lib.rs:655:18
[INFO] [stdout]   27:     0x56325d36d61c - test::run_test::{{closure}}::h858d3528838ae3e5
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/test/src/lib.rs:646:30
[INFO] [stdout]   28:     0x56325d36d61c - core::ops::function::FnOnce::call_once{{vtable.shim}}::he8ac2b00f01ae79e
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   29:     0x56325d39ef06 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h8093d25b522725ef
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/alloc/src/boxed.rs:1973:9
[INFO] [stdout]   30:     0x56325d39ef06 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h5c334c204e4a3913
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/core/src/panic/unwind_safe.rs:271:9
[INFO] [stdout]   31:     0x56325d39ef06 - std::panicking::try::do_call::ha8b740c7b9478074
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/panicking.rs:485:40
[INFO] [stdout]   32:     0x56325d39ef06 - std::panicking::try::h5d34f63d0e41b64e
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/panicking.rs:449:19
[INFO] [stdout]   33:     0x56325d39ef06 - std::panic::catch_unwind::hcfbb511e1aa7fc67
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/panic.rs:140:14
[INFO] [stdout]   34:     0x56325d39ef06 - test::run_test_in_process::h9abda90f802eaf21
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/test/src/lib.rs:678:27
[INFO] [stdout]   35:     0x56325d39ef06 - test::run_test::run_test_inner::{{closure}}::h0f058de91f6c6edf
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/test/src/lib.rs:572:39
[INFO] [stdout]   36:     0x56325d367e25 - test::run_test::run_test_inner::{{closure}}::h5ca48a4c59c6c1fb
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/test/src/lib.rs:599:37
[INFO] [stdout]   37:     0x56325d367e25 - std::sys_common::backtrace::__rust_begin_short_backtrace::h32bd51e1495d4a33
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/sys_common/backtrace.rs:134:18
[INFO] [stdout]   38:     0x56325d36d361 - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::hc086fae9b128b2db
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/thread/mod.rs:526:17
[INFO] [stdout]   39:     0x56325d36d361 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::hb66571888d270d43
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/core/src/panic/unwind_safe.rs:271:9
[INFO] [stdout]   40:     0x56325d36d361 - std::panicking::try::do_call::h4fa2ef4f6e51fecf
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/panicking.rs:485:40
[INFO] [stdout]   41:     0x56325d36d361 - std::panicking::try::h1e9e22b8584489b5
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/panicking.rs:449:19
[INFO] [stdout]   42:     0x56325d36d361 - std::panic::catch_unwind::h44698a3de0e0769e
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/panic.rs:140:14
[INFO] [stdout]   43:     0x56325d36d361 - std::thread::Builder::spawn_unchecked_::{{closure}}::h50153abde3fe239e
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/thread/mod.rs:525:30
[INFO] [stdout]   44:     0x56325d36d361 - core::ops::function::FnOnce::call_once{{vtable.shim}}::hbe5bbf6f38394364
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   45:     0x56325d3cc745 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h0d83cb2920a49046
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/alloc/src/boxed.rs:1973:9
[INFO] [stdout]   46:     0x56325d3cc745 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hbe0a008aa7d9ef59
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/alloc/src/boxed.rs:1973:9
[INFO] [stdout]   47:     0x56325d3cc745 - std::sys::unix::thread::Thread::new::thread_start::h3a466996bdf6b1f9
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/sys/unix/thread.rs:108:17
[INFO] [stdout]   48:     0x7f1cbf777b43 - <unknown>
[INFO] [stdout]   49:     0x7f1cbf808bb4 - __clone
[INFO] [stdout]   50:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     test_output
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass `--test test_log`
[INFO] running `Command { std: "docker" "inspect" "12a32e80fe90d15dd0c82d4fca16dcf762605d761b29c33334518d3dc68cf28f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "12a32e80fe90d15dd0c82d4fca16dcf762605d761b29c33334518d3dc68cf28f", kill_on_drop: false }`
[INFO] [stdout] 12a32e80fe90d15dd0c82d4fca16dcf762605d761b29c33334518d3dc68cf28f
