[INFO] fetching crate data_forest 0.1.3...
[INFO] testing data_forest-0.1.3 against 1.100.0-beta.1+cargoflags=--release for beta-release-1.100-2
[INFO] extracting crate data_forest 0.1.3 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate data_forest 0.1.3
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate data_forest 0.1.3
[INFO] tweaked toml for crates.io crate data_forest 0.1.3 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate data_forest 0.1.3 on toolchain 1.100.0-beta.1
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.100.0-beta.1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate data_forest 0.1.3 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.100.0-beta.1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: `package.homepage` is redundant with `package.repository`
[INFO] [stderr]   --> Cargo.toml:26:12
[INFO] [stderr]    |
[INFO] [stderr] 26 | homepage = "https://github.com/anisimov-anthony/data_forest"
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 31 | repository = "https://github.com/anisimov-anthony/data_forest"
[INFO] [stderr]    |              -------------------------------------------------
[INFO] [stderr]    |
[INFO] [stderr]    = note: `cargo::redundant_homepage` is set to `warn` by default
[INFO] [stderr] help: consider removing `package.homepage`
[INFO] [stderr] warning: `data_forest` (manifest) generated 1 warning
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] abf7a81777ecf79753b2bd6cb289dfedf6e1018930a0f01b18c734706bb8b648
[INFO] running `Command { std: "docker" "start" "abf7a81777ecf79753b2bd6cb289dfedf6e1018930a0f01b18c734706bb8b648", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "abf7a81777ecf79753b2bd6cb289dfedf6e1018930a0f01b18c734706bb8b648", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "abf7a81777ecf79753b2bd6cb289dfedf6e1018930a0f01b18c734706bb8b648" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "abf7a81777ecf79753b2bd6cb289dfedf6e1018930a0f01b18c734706bb8b648", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "abf7a81777ecf79753b2bd6cb289dfedf6e1018930a0f01b18c734706bb8b648" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "build" "--frozen" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stderr] warning: `package.homepage` is redundant with `package.repository`
[INFO] [stderr]   --> Cargo.toml:26:12
[INFO] [stderr]    |
[INFO] [stderr] 26 | homepage = "https://github.com/anisimov-anthony/data_forest"
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 31 | repository = "https://github.com/anisimov-anthony/data_forest"
[INFO] [stderr]    |              -------------------------------------------------
[INFO] [stderr]    |
[INFO] [stderr]    = note: `cargo::redundant_homepage` is set to `warn` by default
[INFO] [stderr] help: consider removing `package.homepage`
[INFO] [stderr] warning: `data_forest` (manifest) generated 1 warning
[INFO] [stderr]    Compiling bst-rs v0.1.0
[INFO] [stderr]    Compiling data_forest v0.1.3 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused dependency `bst-rs`
[INFO] [stderr]  --> Cargo.toml:1:15
[INFO] [stderr]   |
[INFO] [stderr] 1 | [dependencies.bst-rs]
[INFO] [stderr]   |               ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `cargo::unused_dependencies` is set to `warn` by default
[INFO] [stderr] help: consider removing the dependency on `bst-rs`
[INFO] [stderr] warning: `data_forest` (manifest) generated 1 warning
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 0.45s
[INFO] running `Command { std: "docker" "inspect" "abf7a81777ecf79753b2bd6cb289dfedf6e1018930a0f01b18c734706bb8b648", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "abf7a81777ecf79753b2bd6cb289dfedf6e1018930a0f01b18c734706bb8b648" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "test" "--frozen" "--no-run" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stderr] warning: `package.homepage` is redundant with `package.repository`
[INFO] [stderr]   --> Cargo.toml:26:12
[INFO] [stderr]    |
[INFO] [stderr] 26 | homepage = "https://github.com/anisimov-anthony/data_forest"
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 31 | repository = "https://github.com/anisimov-anthony/data_forest"
[INFO] [stderr]    |              -------------------------------------------------
[INFO] [stderr]    |
[INFO] [stderr]    = note: `cargo::redundant_homepage` is set to `warn` by default
[INFO] [stderr] help: consider removing `package.homepage`
[INFO] [stderr] warning: `data_forest` (manifest) generated 1 warning
[INFO] [stderr]    Compiling libc v0.2.172
[INFO] [stderr]    Compiling getrandom v0.3.2
[INFO] [stderr]    Compiling zerocopy v0.8.25
[INFO] [stderr]    Compiling rustix v1.0.5
[INFO] [stderr]    Compiling autocfg v1.4.0
[INFO] [stderr]    Compiling bitflags v2.9.0
[INFO] [stderr]    Compiling linux-raw-sys v0.9.4
[INFO] [stderr]    Compiling once_cell v1.21.3
[INFO] [stderr]    Compiling regex-syntax v0.8.5
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling wait-timeout v0.2.1
[INFO] [stderr]    Compiling rand_core v0.9.3
[INFO] [stderr]    Compiling rand_xorshift v0.4.0
[INFO] [stderr]    Compiling ppv-lite86 v0.2.21
[INFO] [stderr]    Compiling tempfile v3.19.1
[INFO] [stderr]    Compiling rand_chacha v0.9.0
[INFO] [stderr]    Compiling rand v0.9.2
[INFO] [stderr]    Compiling rusty-fork v0.3.0
[INFO] [stderr]    Compiling proptest v1.7.0
[INFO] [stderr]    Compiling data_forest v0.1.3 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused dependency `bst-rs`
[INFO] [stderr]  --> Cargo.toml:1:15
[INFO] [stderr]   |
[INFO] [stderr] 1 | [dependencies.bst-rs]
[INFO] [stderr]   |               ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `cargo::unused_dependencies` is set to `warn` by default
[INFO] [stderr] help: consider removing the dependency on `bst-rs`
[INFO] [stderr] help: to still use for development builds, move to `dev-dependencies`
[INFO] [stderr] warning: `data_forest` (manifest) generated 1 warning
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 51.13s
[INFO] running `Command { std: "docker" "inspect" "abf7a81777ecf79753b2bd6cb289dfedf6e1018930a0f01b18c734706bb8b648", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "abf7a81777ecf79753b2bd6cb289dfedf6e1018930a0f01b18c734706bb8b648" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "test" "--frozen" "--release", kill_on_drop: false }`
[INFO] [stderr] warning: `package.homepage` is redundant with `package.repository`
[INFO] [stderr]   --> Cargo.toml:26:12
[INFO] [stderr]    |
[INFO] [stderr] 26 | homepage = "https://github.com/anisimov-anthony/data_forest"
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 31 | repository = "https://github.com/anisimov-anthony/data_forest"
[INFO] [stderr]    |              -------------------------------------------------
[INFO] [stderr]    |
[INFO] [stderr]    = note: `cargo::redundant_homepage` is set to `warn` by default
[INFO] [stderr] help: consider removing `package.homepage`
[INFO] [stderr] warning: `data_forest` (manifest) generated 1 warning
[INFO] [stderr] warning: unused dependency `bst-rs`
[INFO] [stderr]  --> Cargo.toml:1:15
[INFO] [stderr]   |
[INFO] [stderr] 1 | [dependencies.bst-rs]
[INFO] [stderr]   |               ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `cargo::unused_dependencies` is set to `warn` by default
[INFO] [stderr] help: consider removing the dependency on `bst-rs`
[INFO] [stderr] help: to still use for development builds, move to `dev-dependencies`
[INFO] [stderr] warning: `data_forest` (manifest) generated 1 warning
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/release/build/data_forest/1ebc59bf3e579e97/out/data_forest-1ebc59bf3e579e97)
[INFO] [stdout] 
[INFO] [stdout] running 105 tests
[INFO] [stdout] test avl_tree::avl_operations::tests::ceil_in_empty_tree ... ok
[INFO] [stdout] test avl_tree::avl_operations::tests::contains_basic ... ok
[INFO] [stdout] test avl_tree::avl_operations::tests::ceil_basic ... ok
[INFO] [stdout] test avl_tree::avl_operations::tests::contains_in_single_node_tree ... ok
[INFO] [stdout] test avl_tree::avl_operations::tests::floor_in_empty_tree ... ok
[INFO] [stdout] test avl_tree::avl_operations::tests::height_basic ... ok
[INFO] [stdout] test avl_tree::avl_operations::tests::level_order_basic ... ok
[INFO] [stdout] test avl_tree::avl_operations::tests::floor_basic ... ok
[INFO] [stdout] test avl_tree::avl_operations::tests::contains_in_empty_tree ... ok
[INFO] [stdout] test avl_tree::avl_operations::tests::in_order_basic ... ok
[INFO] [stdout] test avl_tree::avl_operations::tests::in_order_in_empty_tree ... ok
[INFO] [stdout] test avl_tree::avl_operations::tests::height_in_empty_tree ... ok
[INFO] [stdout] test avl_tree::avl_operations::tests::is_and_isnt_empty_tree ... ok
[INFO] [stdout] test avl_tree::avl_operations::tests::level_order_in_empty_tree ... ok
[INFO] [stdout] test avl_tree::avl_operations::tests::max_in_empty_tree ... ok
[INFO] [stdout] test avl_tree::avl_operations::tests::max_basic_check_updating ... ok
[INFO] [stdout] test avl_tree::avl_operations::tests::number_of_elements_in_empty_tree ... ok
[INFO] [stdout] test avl_tree::avl_operations::tests::post_order_basic ... ok
[INFO] [stdout] test avl_tree::avl_operations::tests::post_order_in_empty_tree ... ok
[INFO] [stdout] test avl_tree::avl_operations::tests::pre_order_basic ... ok
[INFO] [stdout] test avl_tree::avl_operations::tests::min_basic_check_updating ... ok
[INFO] [stdout] test avl_tree::avl_operations::tests::min_in_empty_tree ... ok
[INFO] [stdout] test avl_tree::avl_operations::tests::max_min_are_similar_for_single_element_tree ... ok
[INFO] [stdout] test avl_tree::avl_operations::tests::pre_order_in_empty_tree ... ok
[INFO] [stdout] test avl_tree::avl_operations::tests::remove_basic_check_min_max_updating ... ok
[INFO] [stdout] test avl_tree::avl_operations::tests::remove_from_empty_tree ... ok
[INFO] [stdout] test avl_tree::avl_operations::tests::remove_from_single_node_tree_check_min_max_updating ... ok
[INFO] [stdout] test avl_tree::visualization::tests::degenerate_trees_graphviz ... FAILED
[INFO] [stdout] test binary_search_tree::bst_operations::tests::ceil_in_degenerate_trees ... ok
[INFO] [stdout] test binary_search_tree::bst_operations::tests::ceil_in_empty_tree ... ok
[INFO] [stdout] test avl_tree::visualization::tests::basic_tree_graphviz ... FAILED
[INFO] [stdout] test avl_tree::visualization::tests::check_rebalancing_avl_graphviz ... FAILED
[INFO] [stdout] test avl_tree::avl_operations::tests::number_of_elements_basic ... ok
[INFO] [stdout] test binary_search_tree::bst_operations::tests::contains_in_degenerate_trees ... ok
[INFO] [stdout] test binary_search_tree::bst_operations::tests::contains_in_empty_tree ... ok
[INFO] [stdout] test avl_tree::visualization::tests::empty_tree_graphviz ... FAILED
[INFO] [stdout] test binary_search_tree::bst_operations::tests::contains_in_single_node_tree ... ok
[INFO] [stdout] test binary_search_tree::bst_operations::tests::ceil_basic ... ok
[INFO] [stdout] test binary_search_tree::bst_operations::tests::contains_basic ... ok
[INFO] [stdout] test binary_search_tree::bst_operations::tests::floor_basic ... ok
[INFO] [stdout] test binary_search_tree::bst_operations::tests::floor_in_degenerate_trees ... ok
[INFO] [stdout] test binary_search_tree::bst_operations::tests::floor_in_empty_tree ... ok
[INFO] [stdout] test binary_search_tree::bst_operations::tests::height_in_degenerate_trees ... ok
[INFO] [stdout] test binary_search_tree::bst_operations::tests::height_basic ... ok
[INFO] [stdout] test binary_search_tree::bst_operations::tests::in_order_in_degenerate_trees ... ok
[INFO] [stdout] test binary_search_tree::bst_operations::tests::in_order_in_empty_tree ... ok
[INFO] [stdout] test binary_search_tree::bst_operations::tests::height_in_empty_tree ... ok
[INFO] [stdout] test binary_search_tree::bst_operations::tests::in_order_basic ... ok
[INFO] [stdout] test binary_search_tree::bst_operations::tests::is_and_isnt_empty_tree ... ok
[INFO] [stdout] test binary_search_tree::bst_operations::tests::min_basic_check_updating ... ok
[INFO] [stdout] test binary_search_tree::bst_operations::tests::level_order_basic ... ok
[INFO] [stdout] test binary_search_tree::bst_operations::tests::level_order_in_degenerate_trees ... ok
[INFO] [stdout] test binary_search_tree::bst_operations::tests::level_order_in_empty_tree ... ok
[INFO] [stdout] test binary_search_tree::bst_operations::tests::max_basic_check_updating ... ok
[INFO] [stdout] test binary_search_tree::bst_operations::tests::max_in_degenerate_trees_check_updating ... ok
[INFO] [stdout] test binary_search_tree::bst_operations::tests::max_in_empty_tree ... ok
[INFO] [stdout] test binary_search_tree::bst_operations::tests::max_min_are_similar_for_single_element_tree ... ok
[INFO] [stdout] test binary_search_tree::bst_operations::tests::min_in_empty_tree ... ok
[INFO] [stdout] test binary_search_tree::bst_operations::tests::number_of_elements_in_empty_tree ... ok
[INFO] [stdout] test binary_search_tree::bst_operations::tests::number_of_elements_basic ... ok
[INFO] [stdout] test binary_search_tree::bst_operations::tests::post_order_in_degenerate_trees ... ok
[INFO] [stdout] test binary_search_tree::bst_operations::tests::post_order_in_empty_tree ... ok
[INFO] [stdout] test binary_search_tree::bst_operations::tests::min_in_degenerate_trees_check_updating ... ok
[INFO] [stdout] test binary_search_tree::bst_operations::tests::number_of_elements_in_degenerate_trees ... ok
[INFO] [stdout] test binary_search_tree::bst_operations::tests::post_order_basic ... ok
[INFO] [stdout] test binary_search_tree::bst_operations::tests::pre_order_basic ... ok
[INFO] [stdout] test binary_search_tree::bst_operations::tests::pre_order_in_empty_tree ... ok
[INFO] [stdout] test binary_search_tree::bst_operations::tests::pre_order_in_degenerate_trees ... ok
[INFO] [stdout] test binary_search_tree::bst_operations::tests::remove_from_degenerate_trees_check_min_max_updating ... ok
[INFO] [stdout] test binary_search_tree::bst_operations::tests::remove_basic_check_min_max_updating ... ok
[INFO] [stdout] test binary_search_tree::bst_operations::tests::remove_from_single_node_tree_check_min_max_updating ... ok
[INFO] [stdout] test binary_search_tree::bst_operations::tests::remove_from_empty_tree ... ok
[INFO] [stdout] test binary_search_tree::visualization::tests::basic_tree_graphviz ... FAILED
[INFO] [stdout] test binary_search_tree::visualization::tests::degenerate_trees_graphviz ... FAILED
[INFO] [stdout] test red_black_tree::tests::ceil_basic ... ok
[INFO] [stdout] test red_black_tree::tests::contains_in_empty_tree ... ok
[INFO] [stdout] test red_black_tree::tests::contains_basic ... ok
[INFO] [stdout] test red_black_tree::tests::contains_in_single_node_tree ... ok
[INFO] [stdout] test binary_search_tree::visualization::tests::empty_tree_graphviz ... FAILED
[INFO] [stdout] test red_black_tree::tests::ceil_in_empty_tree ... ok
[INFO] [stdout] test red_black_tree::tests::floor_basic ... ok
[INFO] [stdout] test red_black_tree::tests::in_order_returns_sorted ... ok
[INFO] [stdout] test red_black_tree::tests::height_in_empty_tree ... ok
[INFO] [stdout] test red_black_tree::tests::in_order_in_empty_tree ... ok
[INFO] [stdout] test red_black_tree::tests::min_max_basic ... ok
[INFO] [stdout] test red_black_tree::tests::min_max_in_empty_tree ... ok
[INFO] [stdout] test red_black_tree::tests::number_of_elements_basic ... ok
[INFO] [stdout] test red_black_tree::tests::insert_maintains_red_black_properties ... ok
[INFO] [stdout] test red_black_tree::tests::floor_in_empty_tree ... ok
[INFO] [stdout] test red_black_tree::tests::number_of_elements_in_empty_tree ... ok
[INFO] [stdout] test red_black_tree::tests::post_order_in_empty_tree ... ok
[INFO] [stdout] test red_black_tree::tests::is_and_isnt_empty_tree ... ok
[INFO] [stdout] test red_black_tree::tests::height_basic ... ok
[INFO] [stdout] test red_black_tree::tests::pre_order_in_empty_tree ... ok
[INFO] [stdout] test red_black_tree::tests::remove_from_empty_tree ... ok
[INFO] [stdout] test red_black_tree::tests::remove_from_single_node_tree ... ok
[INFO] [stdout] test red_black_tree::tests::remove_maintains_red_black_properties ... ok
[INFO] [stdout] test red_black_tree::tests::reverse_sequential_insert_maintains_balance ... ok
[INFO] [stdout] test red_black_tree::tests::sequential_insert_maintains_balance ... ok
[INFO] [stdout] test red_black_tree::visualization::tests::basic_tree_graphviz ... FAILED
[INFO] [stdout] test red_black_tree::tests::level_order_in_empty_tree ... ok
[INFO] [stdout] test red_black_tree::tests::min_max_after_removal ... ok
[INFO] [stdout] test red_black_tree::visualization::tests::empty_tree_graphviz ... FAILED
[INFO] [stdout] test red_black_tree::visualization::tests::after_deletions_graphviz ... FAILED
[INFO] [stdout] test red_black_tree::visualization::tests::sequential_insert_graphviz ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- avl_tree::visualization::tests::degenerate_trees_graphviz stdout ----
[INFO] [stdout] 
[INFO] [stdout] thread 'avl_tree::visualization::tests::degenerate_trees_graphviz' (676) panicked at src/avl_tree/visualization.rs:32:40:
[INFO] [stdout] called `Result::unwrap()` on an `Err` value: Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" }
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x5d7755ec3121 - <<std[617be2ca0a6fd877]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[a373ad73a504971]::fmt::Display>::fmt
[INFO] [stdout]    1:     0x5d7755ed741a - core[a373ad73a504971]::fmt::write
[INFO] [stdout]    2:     0x5d7755ec733c - <alloc[2e1b2a31b91974c5]::vec::Vec<u8> as core[a373ad73a504971]::io::write::Write>::write_fmt
[INFO] [stdout]    3:     0x5d7755e9edd6 - std[617be2ca0a6fd877]::panicking::default_hook::{closure#0}
[INFO] [stdout]    4:     0x5d7755ebb7b9 - std[617be2ca0a6fd877]::panicking::default_hook
[INFO] [stdout]    5:     0x5d7755e57590 - test[aada8e7e76ba119b]::test_main_inner::{closure#0}
[INFO] [stdout]    6:     0x5d7755ebb972 - std[617be2ca0a6fd877]::panicking::panic_with_hook
[INFO] [stdout]    7:     0x5d7755e9ee82 - std[617be2ca0a6fd877]::panicking::panic_handler::{closure#0}
[INFO] [stdout]    8:     0x5d7755e97a79 - std[617be2ca0a6fd877]::sys::backtrace::__rust_end_short_backtrace::<std[617be2ca0a6fd877]::panicking::panic_handler::{closure#0}, !>
[INFO] [stdout]    9:     0x5d7755e9fa8d - __rustc[ea4f61d10b84890b]::rust_begin_unwind
[INFO] [stdout]   10:     0x5d7755ed7b4c - core[a373ad73a504971]::panicking::panic_fmt
[INFO] [stdout]   11:     0x5d7755ed7922 - core[a373ad73a504971]::result::unwrap_failed
[INFO] [stdout]   12:     0x5d7755e4112c - <data_forest[81fb39c20a1566ea]::avl_tree::visualization::tests::degenerate_trees_graphviz::{closure#0} as core[a373ad73a504971]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]   13:     0x5d7755e4a9db - test[aada8e7e76ba119b]::__rust_begin_short_backtrace::<core[a373ad73a504971]::result::Result<(), alloc[2e1b2a31b91974c5]::string::String>, fn() -> core[a373ad73a504971]::result::Result<(), alloc[2e1b2a31b91974c5]::string::String>>
[INFO] [stdout]   14:     0x5d7755e57bb5 - test[aada8e7e76ba119b]::run_test::{closure#0}
[INFO] [stdout]   15:     0x5d7755e514a4 - std[617be2ca0a6fd877]::sys::backtrace::__rust_begin_short_backtrace::<test[aada8e7e76ba119b]::run_test::{closure#1}, ()>
[INFO] [stdout]   16:     0x5d7755e5ac42 - <std[617be2ca0a6fd877]::thread::lifecycle::spawn_unchecked<test[aada8e7e76ba119b]::run_test::{closure#1}, ()>::{closure#1} as core[a373ad73a504971]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
[INFO] [stdout]   17:     0x5d7755ec297f - <std[617be2ca0a6fd877]::sys::thread::unix::Thread>::new::thread_start
[INFO] [stdout]   18:     0x764d00d43dfa - <unknown>
[INFO] [stdout]   19:     0x764d00dd73d4 - clone
[INFO] [stdout]   20:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] ---- avl_tree::visualization::tests::basic_tree_graphviz stdout ----
[INFO] [stdout] 
[INFO] [stdout] thread 'avl_tree::visualization::tests::basic_tree_graphviz' (674) panicked at src/avl_tree/visualization.rs:32:40:
[INFO] [stdout] called `Result::unwrap()` on an `Err` value: Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" }
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x5d7755ec3121 - <<std[617be2ca0a6fd877]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[a373ad73a504971]::fmt::Display>::fmt
[INFO] [stdout]    1:     0x5d7755ed741a - core[a373ad73a504971]::fmt::write
[INFO] [stdout]    2:     0x5d7755ec733c - <alloc[2e1b2a31b91974c5]::vec::Vec<u8> as core[a373ad73a504971]::io::write::Write>::write_fmt
[INFO] [stdout]    3:     0x5d7755e9edd6 - std[617be2ca0a6fd877]::panicking::default_hook::{closure#0}
[INFO] [stdout]    4:     0x5d7755ebb7b9 - std[617be2ca0a6fd877]::panicking::default_hook
[INFO] [stdout]    5:     0x5d7755e57590 - test[aada8e7e76ba119b]::test_main_inner::{closure#0}
[INFO] [stdout]    6:     0x5d7755ebb972 - std[617be2ca0a6fd877]::panicking::panic_with_hook
[INFO] [stdout]    7:     0x5d7755e9ee82 - std[617be2ca0a6fd877]::panicking::panic_handler::{closure#0}
[INFO] [stdout]    8:     0x5d7755e97a79 - std[617be2ca0a6fd877]::sys::backtrace::__rust_end_short_backtrace::<std[617be2ca0a6fd877]::panicking::panic_handler::{closure#0}, !>
[INFO] [stdout]    9:     0x5d7755e9fa8d - __rustc[ea4f61d10b84890b]::rust_begin_unwind
[INFO] [stdout]   10:     0x5d7755ed7b4c - core[a373ad73a504971]::panicking::panic_fmt
[INFO] [stdout]   11:     0x5d7755ed7922 - core[a373ad73a504971]::result::unwrap_failed
[INFO] [stdout]   12:     0x5d7755e40303 - <data_forest[81fb39c20a1566ea]::avl_tree::visualization::tests::basic_tree_graphviz::{closure#0} as core[a373ad73a504971]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]   13:     0x5d7755e4a9db - test[aada8e7e76ba119b]::__rust_begin_short_backtrace::<core[a373ad73a504971]::result::Result<(), alloc[2e1b2a31b91974c5]::string::String>, fn() -> core[a373ad73a504971]::result::Result<(), alloc[2e1b2a31b91974c5]::string::String>>
[INFO] [stdout]   14:     0x5d7755e57bb5 - test[aada8e7e76ba119b]::run_test::{closure#0}
[INFO] [stdout]   15:     0x5d7755e514a4 - std[617be2ca0a6fd877]::sys::backtrace::__rust_begin_short_backtrace::<test[aada8e7e76ba119b]::run_test::{closure#1}, ()>
[INFO] [stdout]   16:     0x5d7755e5ac42 - <std[617be2ca0a6fd877]::thread::lifecycle::spawn_unchecked<test[aada8e7e76ba119b]::run_test::{closure#1}, ()>::{closure#1} as core[a373ad73a504971]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
[INFO] [stdout]   17:     0x5d7755ec297f - <std[617be2ca0a6fd877]::sys::thread::unix::Thread>::new::thread_start
[INFO] [stdout]   18:     0x764d00d43dfa - <unknown>
[INFO] [stdout]   19:     0x764d00dd73d4 - clone
[INFO] [stdout]   20:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] ---- avl_tree::visualization::tests::check_rebalancing_avl_graphviz stdout ----
[INFO] [stdout] 
[INFO] [stdout] thread 'avl_tree::visualization::tests::check_rebalancing_avl_graphviz' (675) panicked at src/avl_tree/visualization.rs:32:40:
[INFO] [stdout] called `Result::unwrap()` on an `Err` value: Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" }
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x5d7755ec3121 - <<std[617be2ca0a6fd877]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[a373ad73a504971]::fmt::Display>::fmt
[INFO] [stdout]    1:     0x5d7755ed741a - core[a373ad73a504971]::fmt::write
[INFO] [stdout]    2:     0x5d7755ec733c - <alloc[2e1b2a31b91974c5]::vec::Vec<u8> as core[a373ad73a504971]::io::write::Write>::write_fmt
[INFO] [stdout]    3:     0x5d7755e9edd6 - std[617be2ca0a6fd877]::panicking::default_hook::{closure#0}
[INFO] [stdout]    4:     0x5d7755ebb7b9 - std[617be2ca0a6fd877]::panicking::default_hook
[INFO] [stdout]    5:     0x5d7755e57590 - test[aada8e7e76ba119b]::test_main_inner::{closure#0}
[INFO] [stdout]    6:     0x5d7755ebb972 - std[617be2ca0a6fd877]::panicking::panic_with_hook
[INFO] [stdout]    7:     0x5d7755e9ee82 - std[617be2ca0a6fd877]::panicking::panic_handler::{closure#0}
[INFO] [stdout]    8:     0x5d7755e97a79 - std[617be2ca0a6fd877]::sys::backtrace::__rust_end_short_backtrace::<std[617be2ca0a6fd877]::panicking::panic_handler::{closure#0}, !>
[INFO] [stdout]    9:     0x5d7755e9fa8d - __rustc[ea4f61d10b84890b]::rust_begin_unwind
[INFO] [stdout]   10:     0x5d7755ed7b4c - core[a373ad73a504971]::panicking::panic_fmt
[INFO] [stdout]   11:     0x5d7755ed7922 - core[a373ad73a504971]::result::unwrap_failed
[INFO] [stdout]   12:     0x5d7755e41ece - <data_forest[81fb39c20a1566ea]::avl_tree::visualization::tests::check_rebalancing_avl_graphviz::{closure#0} as core[a373ad73a504971]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]   13:     0x5d7755e4a9db - test[aada8e7e76ba119b]::__rust_begin_short_backtrace::<core[a373ad73a504971]::result::Result<(), alloc[2e1b2a31b91974c5]::string::String>, fn() -> core[a373ad73a504971]::result::Result<(), alloc[2e1b2a31b91974c5]::string::String>>
[INFO] [stdout]   14:     0x5d7755e57bb5 - test[aada8e7e76ba119b]::run_test::{closure#0}
[INFO] [stdout]   15:     0x5d7755e514a4 - std[617be2ca0a6fd877]::sys::backtrace::__rust_begin_short_backtrace::<test[aada8e7e76ba119b]::run_test::{closure#1}, ()>
[INFO] [stdout]   16:     0x5d7755e5ac42 - <std[617be2ca0a6fd877]::thread::lifecycle::spawn_unchecked<test[aada8e7e76ba119b]::run_test::{closure#1}, ()>::{closure#1} as core[a373ad73a504971]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
[INFO] [stdout]   17:     0x5d7755ec297f - <std[617be2ca0a6fd877]::sys::thread::unix::Thread>::new::thread_start
[INFO] [stdout]   18:     0x764d00d43dfa - <unknown>
[INFO] [stdout]   19:     0x764d00dd73d4 - clone
[INFO] [stdout]   20:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] ---- avl_tree::visualization::tests::empty_tree_graphviz stdout ----
[INFO] [stdout] 
[INFO] [stdout] thread 'avl_tree::visualization::tests::empty_tree_graphviz' (677) panicked at src/avl_tree/visualization.rs:32:40:
[INFO] [stdout] called `Result::unwrap()` on an `Err` value: Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" }
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x5d7755ec3121 - <<std[617be2ca0a6fd877]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[a373ad73a504971]::fmt::Display>::fmt
[INFO] [stdout]    1:     0x5d7755ed741a - core[a373ad73a504971]::fmt::write
[INFO] [stdout]    2:     0x5d7755ec733c - <alloc[2e1b2a31b91974c5]::vec::Vec<u8> as core[a373ad73a504971]::io::write::Write>::write_fmt
[INFO] [stdout]    3:     0x5d7755e9edd6 - std[617be2ca0a6fd877]::panicking::default_hook::{closure#0}
[INFO] [stdout]    4:     0x5d7755ebb7b9 - std[617be2ca0a6fd877]::panicking::default_hook
[INFO] [stdout]    5:     0x5d7755e57590 - test[aada8e7e76ba119b]::test_main_inner::{closure#0}
[INFO] [stdout]    6:     0x5d7755ebb972 - std[617be2ca0a6fd877]::panicking::panic_with_hook
[INFO] [stdout]    7:     0x5d7755e9ee82 - std[617be2ca0a6fd877]::panicking::panic_handler::{closure#0}
[INFO] [stdout]    8:     0x5d7755e97a79 - std[617be2ca0a6fd877]::sys::backtrace::__rust_end_short_backtrace::<std[617be2ca0a6fd877]::panicking::panic_handler::{closure#0}, !>
[INFO] [stdout]    9:     0x5d7755e9fa8d - __rustc[ea4f61d10b84890b]::rust_begin_unwind
[INFO] [stdout]   10:     0x5d7755ed7b4c - core[a373ad73a504971]::panicking::panic_fmt
[INFO] [stdout]   11:     0x5d7755ed7922 - core[a373ad73a504971]::result::unwrap_failed
[INFO] [stdout]   12:     0x5d7755e40652 - <data_forest[81fb39c20a1566ea]::avl_tree::visualization::tests::empty_tree_graphviz::{closure#0} as core[a373ad73a504971]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]   13:     0x5d7755e4a9db - test[aada8e7e76ba119b]::__rust_begin_short_backtrace::<core[a373ad73a504971]::result::Result<(), alloc[2e1b2a31b91974c5]::string::String>, fn() -> core[a373ad73a504971]::result::Result<(), alloc[2e1b2a31b91974c5]::string::String>>
[INFO] [stdout]   14:     0x5d7755e57bb5 - test[aada8e7e76ba119b]::run_test::{closure#0}
[INFO] [stdout]   15:     0x5d7755e514a4 - std[617be2ca0a6fd877]::sys::backtrace::__rust_begin_short_backtrace::<test[aada8e7e76ba119b]::run_test::{closure#1}, ()>
[INFO] [stdout]   16:     0x5d7755e5ac42 - <std[617be2ca0a6fd877]::thread::lifecycle::spawn_unchecked<test[aada8e7e76ba119b]::run_test::{closure#1}, ()>::{closure#1} as core[a373ad73a504971]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
[INFO] [stdout]   17:     0x5d7755ec297f - <std[617be2ca0a6fd877]::sys::thread::unix::Thread>::new::thread_start
[INFO] [stdout]   18:     0x764d00d43dfa - <unknown>
[INFO] [stdout]   19:     0x764d00dd73d4 - clone
[INFO] [stdout]   20:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] ---- binary_search_tree::visualization::tests::basic_tree_graphviz stdout ----
[INFO] [stdout] 
[INFO] [stdout] thread 'binary_search_tree::visualization::tests::basic_tree_graphviz' (718) panicked at src/binary_search_tree/visualization.rs:32:40:
[INFO] [stdout] called `Result::unwrap()` on an `Err` value: Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" }
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x5d7755ec3121 - <<std[617be2ca0a6fd877]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[a373ad73a504971]::fmt::Display>::fmt
[INFO] [stdout]    1:     0x5d7755ed741a - core[a373ad73a504971]::fmt::write
[INFO] [stdout]    2:     0x5d7755ec733c - <alloc[2e1b2a31b91974c5]::vec::Vec<u8> as core[a373ad73a504971]::io::write::Write>::write_fmt
[INFO] [stdout]    3:     0x5d7755e9edd6 - std[617be2ca0a6fd877]::panicking::default_hook::{closure#0}
[INFO] [stdout]    4:     0x5d7755ebb7b9 - std[617be2ca0a6fd877]::panicking::default_hook
[INFO] [stdout]    5:     0x5d7755e57590 - test[aada8e7e76ba119b]::test_main_inner::{closure#0}
[INFO] [stdout]    6:     0x5d7755ebb972 - std[617be2ca0a6fd877]::panicking::panic_with_hook
[INFO] [stdout]    7:     0x5d7755e9ee82 - std[617be2ca0a6fd877]::panicking::panic_handler::{closure#0}
[INFO] [stdout]    8:     0x5d7755e97a79 - std[617be2ca0a6fd877]::sys::backtrace::__rust_end_short_backtrace::<std[617be2ca0a6fd877]::panicking::panic_handler::{closure#0}, !>
[INFO] [stdout]    9:     0x5d7755e9fa8d - __rustc[ea4f61d10b84890b]::rust_begin_unwind
[INFO] [stdout]   10:     0x5d7755ed7b4c - core[a373ad73a504971]::panicking::panic_fmt
[INFO] [stdout]   11:     0x5d7755ed7922 - core[a373ad73a504971]::result::unwrap_failed
[INFO] [stdout]   12:     0x5d7755e3d05d - <data_forest[81fb39c20a1566ea]::binary_search_tree::visualization::tests::basic_tree_graphviz::{closure#0} as core[a373ad73a504971]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]   13:     0x5d7755e4a9db - test[aada8e7e76ba119b]::__rust_begin_short_backtrace::<core[a373ad73a504971]::result::Result<(), alloc[2e1b2a31b91974c5]::string::String>, fn() -> core[a373ad73a504971]::result::Result<(), alloc[2e1b2a31b91974c5]::string::String>>
[INFO] [stdout]   14:     0x5d7755e57bb5 - test[aada8e7e76ba119b]::run_test::{closure#0}
[INFO] [stdout]   15:     0x5d7755e514a4 - std[617be2ca0a6fd877]::sys::backtrace::__rust_begin_short_backtrace::<test[aada8e7e76ba119b]::run_test::{closure#1}, ()>
[INFO] [stdout]   16:     0x5d7755e5ac42 - <std[617be2ca0a6fd877]::thread::lifecycle::spawn_unchecked<test[aada8e7e76ba119b]::run_test::{closure#1}, ()>::{closure#1} as core[a373ad73a504971]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
[INFO] [stdout]   17:     0x5d7755ec297f - <std[617be2ca0a6fd877]::sys::thread::unix::Thread>::new::thread_start
[INFO] [stdout]   18:     0x764d00d43dfa - <unknown>
[INFO] [stdout]   19:     0x764d00dd73d4 - clone
[INFO] [stdout]   20:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] ---- binary_search_tree::visualization::tests::degenerate_trees_graphviz stdout ----
[INFO] [stdout] 
[INFO] [stdout] thread 'binary_search_tree::visualization::tests::degenerate_trees_graphviz' (719) panicked at src/binary_search_tree/visualization.rs:32:40:
[INFO] [stdout] called `Result::unwrap()` on an `Err` value: Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" }
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x5d7755ec3121 - <<std[617be2ca0a6fd877]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[a373ad73a504971]::fmt::Display>::fmt
[INFO] [stdout]    1:     0x5d7755ed741a - core[a373ad73a504971]::fmt::write
[INFO] [stdout]    2:     0x5d7755ec733c - <alloc[2e1b2a31b91974c5]::vec::Vec<u8> as core[a373ad73a504971]::io::write::Write>::write_fmt
[INFO] [stdout]    3:     0x5d7755e9edd6 - std[617be2ca0a6fd877]::panicking::default_hook::{closure#0}
[INFO] [stdout]    4:     0x5d7755ebb7b9 - std[617be2ca0a6fd877]::panicking::default_hook
[INFO] [stdout]    5:     0x5d7755e57590 - test[aada8e7e76ba119b]::test_main_inner::{closure#0}
[INFO] [stdout]    6:     0x5d7755ebb972 - std[617be2ca0a6fd877]::panicking::panic_with_hook
[INFO] [stdout]    7:     0x5d7755e9ee82 - std[617be2ca0a6fd877]::panicking::panic_handler::{closure#0}
[INFO] [stdout]    8:     0x5d7755e97a79 - std[617be2ca0a6fd877]::sys::backtrace::__rust_end_short_backtrace::<std[617be2ca0a6fd877]::panicking::panic_handler::{closure#0}, !>
[INFO] [stdout]    9:     0x5d7755e9fa8d - __rustc[ea4f61d10b84890b]::rust_begin_unwind
[INFO] [stdout]   10:     0x5d7755ed7b4c - core[a373ad73a504971]::panicking::panic_fmt
[INFO] [stdout]   11:     0x5d7755ed7922 - core[a373ad73a504971]::result::unwrap_failed
[INFO] [stdout]   12:     0x5d7755e3d8dc - <data_forest[81fb39c20a1566ea]::binary_search_tree::visualization::tests::degenerate_trees_graphviz::{closure#0} as core[a373ad73a504971]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]   13:     0x5d7755e4a9db - test[aada8e7e76ba119b]::__rust_begin_short_backtrace::<core[a373ad73a504971]::result::Result<(), alloc[2e1b2a31b91974c5]::string::String>, fn() -> core[a373ad73a504971]::result::Result<(), alloc[2e1b2a31b91974c5]::string::String>>
[INFO] [stdout]   14:     0x5d7755e57bb5 - test[aada8e7e76ba119b]::run_test::{closure#0}
[INFO] [stdout]   15:     0x5d7755e514a4 - std[617be2ca0a6fd877]::sys::backtrace::__rust_begin_short_backtrace::<test[aada8e7e76ba119b]::run_test::{closure#1}, ()>
[INFO] [stdout]   16:     0x5d7755e5ac42 - <std[617be2ca0a6fd877]::thread::lifecycle::spawn_unchecked<test[aada8e7e76ba119b]::run_test::{closure#1}, ()>::{closure#1} as core[a373ad73a504971]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
[INFO] [stdout]   17:     0x5d7755ec297f - <std[617be2ca0a6fd877]::sys::thread::unix::Thread>::new::thread_start
[INFO] [stdout]   18:     0x764d00d43dfa - <unknown>
[INFO] [stdout]   19:     0x764d00dd73d4 - clone
[INFO] [stdout]   20:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] ---- binary_search_tree::visualization::tests::empty_tree_graphviz stdout ----
[INFO] [stdout] 
[INFO] [stdout] thread 'binary_search_tree::visualization::tests::empty_tree_graphviz' (720) panicked at src/binary_search_tree/visualization.rs:32:40:
[INFO] [stdout] called `Result::unwrap()` on an `Err` value: Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" }
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x5d7755ec3121 - <<std[617be2ca0a6fd877]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[a373ad73a504971]::fmt::Display>::fmt
[INFO] [stdout]    1:     0x5d7755ed741a - core[a373ad73a504971]::fmt::write
[INFO] [stdout]    2:     0x5d7755ec733c - <alloc[2e1b2a31b91974c5]::vec::Vec<u8> as core[a373ad73a504971]::io::write::Write>::write_fmt
[INFO] [stdout]    3:     0x5d7755e9edd6 - std[617be2ca0a6fd877]::panicking::default_hook::{closure#0}
[INFO] [stdout]    4:     0x5d7755ebb7b9 - std[617be2ca0a6fd877]::panicking::default_hook
[INFO] [stdout]    5:     0x5d7755e57590 - test[aada8e7e76ba119b]::test_main_inner::{closure#0}
[INFO] [stdout]    6:     0x5d7755ebb972 - std[617be2ca0a6fd877]::panicking::panic_with_hook
[INFO] [stdout]    7:     0x5d7755e9ee82 - std[617be2ca0a6fd877]::panicking::panic_handler::{closure#0}
[INFO] [stdout]    8:     0x5d7755e97a79 - std[617be2ca0a6fd877]::sys::backtrace::__rust_end_short_backtrace::<std[617be2ca0a6fd877]::panicking::panic_handler::{closure#0}, !>
[INFO] [stdout]    9:     0x5d7755e9fa8d - __rustc[ea4f61d10b84890b]::rust_begin_unwind
[INFO] [stdout]   10:     0x5d7755ed7b4c - core[a373ad73a504971]::panicking::panic_fmt
[INFO] [stdout]   11:     0x5d7755ed7922 - core[a373ad73a504971]::result::unwrap_failed
[INFO] [stdout]   12:     0x5d7755e3d4f2 - <data_forest[81fb39c20a1566ea]::binary_search_tree::visualization::tests::empty_tree_graphviz::{closure#0} as core[a373ad73a504971]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]   13:     0x5d7755e4a9db - test[aada8e7e76ba119b]::__rust_begin_short_backtrace::<core[a373ad73a504971]::result::Result<(), alloc[2e1b2a31b91974c5]::string::String>, fn() -> core[a373ad73a504971]::result::Result<(), alloc[2e1b2a31b91974c5]::string::String>>
[INFO] [stdout]   14:     0x5d7755e57bb5 - test[aada8e7e76ba119b]::run_test::{closure#0}
[INFO] [stdout]   15:     0x5d7755e514a4 - std[617be2ca0a6fd877]::sys::backtrace::__rust_begin_short_backtrace::<test[aada8e7e76ba119b]::run_test::{closure#1}, ()>
[INFO] [stdout]   16:     0x5d7755e5ac42 - <std[617be2ca0a6fd877]::thread::lifecycle::spawn_unchecked<test[aada8e7e76ba119b]::run_test::{closure#1}, ()>::{closure#1} as core[a373ad73a504971]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
[INFO] [stdout]   17:     0x5d7755ec297f - <std[617be2ca0a6fd877]::sys::thread::unix::Thread>::new::thread_start
[INFO] [stdout]   18:     0x764d00d43dfa - <unknown>
[INFO] [stdout]   19:     0x764d00dd73d4 - clone
[INFO] [stdout]   20:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] ---- red_black_tree::visualization::tests::basic_tree_graphviz stdout ----
[INFO] [stdout] 
[INFO] [stdout] thread 'red_black_tree::visualization::tests::basic_tree_graphviz' (748) panicked at src/red_black_tree/visualization.rs:34:40:
[INFO] [stdout] called `Result::unwrap()` on an `Err` value: Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" }
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x5d7755ec3121 - <<std[617be2ca0a6fd877]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[a373ad73a504971]::fmt::Display>::fmt
[INFO] [stdout]    1:     0x5d7755ed741a - core[a373ad73a504971]::fmt::write
[INFO] [stdout]    2:     0x5d7755ec733c - <alloc[2e1b2a31b91974c5]::vec::Vec<u8> as core[a373ad73a504971]::io::write::Write>::write_fmt
[INFO] [stdout]    3:     0x5d7755e9edd6 - std[617be2ca0a6fd877]::panicking::default_hook::{closure#0}
[INFO] [stdout]    4:     0x5d7755ebb7b9 - std[617be2ca0a6fd877]::panicking::default_hook
[INFO] [stdout]    5:     0x5d7755e57590 - test[aada8e7e76ba119b]::test_main_inner::{closure#0}
[INFO] [stdout]    6:     0x5d7755ebb972 - std[617be2ca0a6fd877]::panicking::panic_with_hook
[INFO] [stdout]    7:     0x5d7755e9ee82 - std[617be2ca0a6fd877]::panicking::panic_handler::{closure#0}
[INFO] [stdout]    8:     0x5d7755e97a79 - std[617be2ca0a6fd877]::sys::backtrace::__rust_end_short_backtrace::<std[617be2ca0a6fd877]::panicking::panic_handler::{closure#0}, !>
[INFO] [stdout]    9:     0x5d7755e9fa8d - __rustc[ea4f61d10b84890b]::rust_begin_unwind
[INFO] [stdout]   10:     0x5d7755ed7b4c - core[a373ad73a504971]::panicking::panic_fmt
[INFO] [stdout]   11:     0x5d7755ed7922 - core[a373ad73a504971]::result::unwrap_failed
[INFO] [stdout]   12:     0x5d7755e3e58d - <data_forest[81fb39c20a1566ea]::red_black_tree::visualization::tests::basic_tree_graphviz::{closure#0} as core[a373ad73a504971]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]   13:     0x5d7755e4a9db - test[aada8e7e76ba119b]::__rust_begin_short_backtrace::<core[a373ad73a504971]::result::Result<(), alloc[2e1b2a31b91974c5]::string::String>, fn() -> core[a373ad73a504971]::result::Result<(), alloc[2e1b2a31b91974c5]::string::String>>
[INFO] [stdout]   14:     0x5d7755e57bb5 - test[aada8e7e76ba119b]::run_test::{closure#0}
[INFO] [stdout]   15:     0x5d7755e514a4 - std[617be2ca0a6fd877]::sys::backtrace::__rust_begin_short_backtrace::<test[aada8e7e76ba119b]::run_test::{closure#1}, ()>
[INFO] [stdout]   16:     0x5d7755e5ac42 - <std[617be2ca0a6fd877]::thread::lifecycle::spawn_unchecked<test[aada8e7e76ba119b]::run_test::{closure#1}, ()>::{closure#1} as core[a373ad73a504971]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
[INFO] [stdout]   17:     0x5d7755ec297f - <std[617be2ca0a6fd877]::sys::thread::unix::Thread>::new::thread_start
[INFO] [stdout]   18:     0x764d00d43dfa - <unknown>
[INFO] [stdout]   19:     0x764d00dd73d4 - clone
[INFO] [stdout]   20:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] ---- red_black_tree::visualization::tests::empty_tree_graphviz stdout ----
[INFO] [stdout] 
[INFO] [stdout] thread 'red_black_tree::visualization::tests::empty_tree_graphviz' (749) panicked at src/red_black_tree/visualization.rs:34:40:
[INFO] [stdout] called `Result::unwrap()` on an `Err` value: Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" }
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x5d7755ec3121 - <<std[617be2ca0a6fd877]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[a373ad73a504971]::fmt::Display>::fmt
[INFO] [stdout]    1:     0x5d7755ed741a - core[a373ad73a504971]::fmt::write
[INFO] [stdout]    2:     0x5d7755ec733c - <alloc[2e1b2a31b91974c5]::vec::Vec<u8> as core[a373ad73a504971]::io::write::Write>::write_fmt
[INFO] [stdout]    3:     0x5d7755e9edd6 - std[617be2ca0a6fd877]::panicking::default_hook::{closure#0}
[INFO] [stdout]    4:     0x5d7755ebb7b9 - std[617be2ca0a6fd877]::panicking::default_hook
[INFO] [stdout]    5:     0x5d7755e57590 - test[aada8e7e76ba119b]::test_main_inner::{closure#0}
[INFO] [stdout]    6:     0x5d7755ebb972 - std[617be2ca0a6fd877]::panicking::panic_with_hook
[INFO] [stdout]    7:     0x5d7755e9ee82 - std[617be2ca0a6fd877]::panicking::panic_handler::{closure#0}
[INFO] [stdout]    8:     0x5d7755e97a79 - std[617be2ca0a6fd877]::sys::backtrace::__rust_end_short_backtrace::<std[617be2ca0a6fd877]::panicking::panic_handler::{closure#0}, !>
[INFO] [stdout]    9:     0x5d7755e9fa8d - __rustc[ea4f61d10b84890b]::rust_begin_unwind
[INFO] [stdout]   10:     0x5d7755ed7b4c - core[a373ad73a504971]::panicking::panic_fmt
[INFO] [stdout]   11:     0x5d7755ed7922 - core[a373ad73a504971]::result::unwrap_failed
[INFO] [stdout]   12:     0x5d7755e3e792 - <data_forest[81fb39c20a1566ea]::red_black_tree::visualization::tests::empty_tree_graphviz::{closure#0} as core[a373ad73a504971]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]   13:     0x5d7755e4a9db - test[aada8e7e76ba119b]::__rust_begin_short_backtrace::<core[a373ad73a504971]::result::Result<(), alloc[2e1b2a31b91974c5]::string::String>, fn() -> core[a373ad73a504971]::result::Result<(), alloc[2e1b2a31b91974c5]::string::String>>
[INFO] [stdout]   14:     0x5d7755e57bb5 - test[aada8e7e76ba119b]::run_test::{closure#0}
[INFO] [stdout]   15:     0x5d7755e514a4 - std[617be2ca0a6fd877]::sys::backtrace::__rust_begin_short_backtrace::<test[aada8e7e76ba119b]::run_test::{closure#1}, ()>
[INFO] [stdout]   16:     0x5d7755e5ac42 - <std[617be2ca0a6fd877]::thread::lifecycle::spawn_unchecked<test[aada8e7e76ba119b]::run_test::{closure#1}, ()>::{closure#1} as core[a373ad73a504971]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
[INFO] [stdout]   17:     0x5d7755ec297f - <std[617be2ca0a6fd877]::sys::thread::unix::Thread>::new::thread_start
[INFO] [stdout]   18:     0x764d00d43dfa - <unknown>
[INFO] [stdout]   19:     0x764d00dd73d4 - clone
[INFO] [stdout]   20:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] ---- red_black_tree::visualization::tests::after_deletions_graphviz stdout ----
[INFO] [stdout] 
[INFO] [stdout] thread 'red_black_tree::visualization::tests::after_deletions_graphviz' (747) panicked at src/red_black_tree/visualization.rs:34:40:
[INFO] [stdout] called `Result::unwrap()` on an `Err` value: Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" }
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x5d7755ec3121 - <<std[617be2ca0a6fd877]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[a373ad73a504971]::fmt::Display>::fmt
[INFO] [stdout]    1:     0x5d7755ed741a - core[a373ad73a504971]::fmt::write
[INFO] [stdout]    2:     0x5d7755ec733c - <alloc[2e1b2a31b91974c5]::vec::Vec<u8> as core[a373ad73a504971]::io::write::Write>::write_fmt
[INFO] [stdout]    3:     0x5d7755e9edd6 - std[617be2ca0a6fd877]::panicking::default_hook::{closure#0}
[INFO] [stdout]    4:     0x5d7755ebb7b9 - std[617be2ca0a6fd877]::panicking::default_hook
[INFO] [stdout]    5:     0x5d7755e57590 - test[aada8e7e76ba119b]::test_main_inner::{closure#0}
[INFO] [stdout]    6:     0x5d7755ebb972 - std[617be2ca0a6fd877]::panicking::panic_with_hook
[INFO] [stdout]    7:     0x5d7755e9ee82 - std[617be2ca0a6fd877]::panicking::panic_handler::{closure#0}
[INFO] [stdout]    8:     0x5d7755e97a79 - std[617be2ca0a6fd877]::sys::backtrace::__rust_end_short_backtrace::<std[617be2ca0a6fd877]::panicking::panic_handler::{closure#0}, !>
[INFO] [stdout]    9:     0x5d7755e9fa8d - __rustc[ea4f61d10b84890b]::rust_begin_unwind
[INFO] [stdout]   10:     0x5d7755ed7b4c - core[a373ad73a504971]::panicking::panic_fmt
[INFO] [stdout]   11:     0x5d7755ed7922 - core[a373ad73a504971]::result::unwrap_failed
[INFO] [stdout]   12:     0x5d7755e3ecbb - <data_forest[81fb39c20a1566ea]::red_black_tree::visualization::tests::after_deletions_graphviz::{closure#0} as core[a373ad73a504971]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]   13:     0x5d7755e4a9db - test[aada8e7e76ba119b]::__rust_begin_short_backtrace::<core[a373ad73a504971]::result::Result<(), alloc[2e1b2a31b91974c5]::string::String>, fn() -> core[a373ad73a504971]::result::Result<(), alloc[2e1b2a31b91974c5]::string::String>>
[INFO] [stdout]   14:     0x5d7755e57bb5 - test[aada8e7e76ba119b]::run_test::{closure#0}
[INFO] [stdout]   15:     0x5d7755e514a4 - std[617be2ca0a6fd877]::sys::backtrace::__rust_begin_short_backtrace::<test[aada8e7e76ba119b]::run_test::{closure#1}, ()>
[INFO] [stdout]   16:     0x5d7755e5ac42 - <std[617be2ca0a6fd877]::thread::lifecycle::spawn_unchecked<test[aada8e7e76ba119b]::run_test::{closure#1}, ()>::{closure#1} as core[a373ad73a504971]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
[INFO] [stdout]   17:     0x5d7755ec297f - <std[617be2ca0a6fd877]::sys::thread::unix::Thread>::new::thread_start
[INFO] [stdout]   18:     0x764d00d43dfa - <unknown>
[INFO] [stdout]   19:     0x764d00dd73d4 - clone
[INFO] [stdout]   20:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] ---- red_black_tree::visualization::tests::sequential_insert_graphviz stdout ----
[INFO] [stdout] 
[INFO] [stdout] thread 'red_black_tree::visualization::tests::sequential_insert_graphviz' (750) panicked at src/red_black_tree/visualization.rs:34:40:
[INFO] [stdout] called `Result::unwrap()` on an `Err` value: Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" }
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x5d7755ec3121 - <<std[617be2ca0a6fd877]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[a373ad73a504971]::fmt::Display>::fmt
[INFO] [stdout]    1:     0x5d7755ed741a - core[a373ad73a504971]::fmt::write
[INFO] [stdout]    2:     0x5d7755ec733c - <alloc[2e1b2a31b91974c5]::vec::Vec<u8> as core[a373ad73a504971]::io::write::Write>::write_fmt
[INFO] [stdout]    3:     0x5d7755e9edd6 - std[617be2ca0a6fd877]::panicking::default_hook::{closure#0}
[INFO] [stdout]    4:     0x5d7755ebb7b9 - std[617be2ca0a6fd877]::panicking::default_hook
[INFO] [stdout]    5:     0x5d7755e57590 - test[aada8e7e76ba119b]::test_main_inner::{closure#0}
[INFO] [stdout]    6:     0x5d7755ebb972 - std[617be2ca0a6fd877]::panicking::panic_with_hook
[INFO] [stdout]    7:     0x5d7755e9ee82 - std[617be2ca0a6fd877]::panicking::panic_handler::{closure#0}
[INFO] [stdout]    8:     0x5d7755e97a79 - std[617be2ca0a6fd877]::sys::backtrace::__rust_end_short_backtrace::<std[617be2ca0a6fd877]::panicking::panic_handler::{closure#0}, !>
[INFO] [stdout]    9:     0x5d7755e9fa8d - __rustc[ea4f61d10b84890b]::rust_begin_unwind
[INFO] [stdout]   10:     0x5d7755ed7b4c - core[a373ad73a504971]::panicking::panic_fmt
[INFO] [stdout]   11:     0x5d7755ed7922 - core[a373ad73a504971]::result::unwrap_failed
[INFO] [stdout]   12:     0x5d7755e3f282 - <data_forest[81fb39c20a1566ea]::red_black_tree::visualization::tests::sequential_insert_graphviz::{closure#0} as core[a373ad73a504971]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]   13:     0x5d7755e4a9db - test[aada8e7e76ba119b]::__rust_begin_short_backtrace::<core[a373ad73a504971]::result::Result<(), alloc[2e1b2a31b91974c5]::string::String>, fn() -> core[a373ad73a504971]::result::Result<(), alloc[2e1b2a31b91974c5]::string::String>>
[INFO] [stdout]   14:     0x5d7755e57bb5 - test[aada8e7e76ba119b]::run_test::{closure#0}
[INFO] [stdout]   15:     0x5d7755e514a4 - std[617be2ca0a6fd877]::sys::backtrace::__rust_begin_short_backtrace::<test[aada8e7e76ba119b]::run_test::{closure#1}, ()>
[INFO] [stdout]   16:     0x5d7755e5ac42 - <std[617be2ca0a6fd877]::thread::lifecycle::spawn_unchecked<test[aada8e7e76ba119b]::run_test::{closure#1}, ()>::{closure#1} as core[a373ad73a504971]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
[INFO] [stdout]   17:     0x5d7755ec297f - <std[617be2ca0a6fd877]::sys::thread::unix::Thread>::new::thread_start
[INFO] [stdout]   18:     0x764d00d43dfa - <unknown>
[INFO] [stdout]   19:     0x764d00dd73d4 - clone
[INFO] [stdout]   20:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     avl_tree::visualization::tests::basic_tree_graphviz
[INFO] [stdout]     avl_tree::visualization::tests::check_rebalancing_avl_graphviz
[INFO] [stdout]     avl_tree::visualization::tests::degenerate_trees_graphviz
[INFO] [stdout]     avl_tree::visualization::tests::empty_tree_graphviz
[INFO] [stdout]     binary_search_tree::visualization::tests::basic_tree_graphviz
[INFO] [stdout]     binary_search_tree::visualization::tests::degenerate_trees_graphviz
[INFO] [stdout]     binary_search_tree::visualization::tests::empty_tree_graphviz
[INFO] [stdout]     red_black_tree::visualization::tests::after_deletions_graphviz
[INFO] [stdout]     red_black_tree::visualization::tests::basic_tree_graphviz
[INFO] [stdout]     red_black_tree::visualization::tests::empty_tree_graphviz
[INFO] [stdout]     red_black_tree::visualization::tests::sequential_insert_graphviz
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 94 passed; 11 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.05s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass `--lib`
[INFO] running `Command { std: "docker" "inspect" "abf7a81777ecf79753b2bd6cb289dfedf6e1018930a0f01b18c734706bb8b648", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "abf7a81777ecf79753b2bd6cb289dfedf6e1018930a0f01b18c734706bb8b648", kill_on_drop: false }`
[INFO] [stdout] abf7a81777ecf79753b2bd6cb289dfedf6e1018930a0f01b18c734706bb8b648
