[INFO] fetching crate fuzzy-tree 0.1.2...
[INFO] testing fuzzy-tree-0.1.2 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate fuzzy-tree 0.1.2 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate fuzzy-tree 0.1.2
[INFO] finished tweaking crates.io crate fuzzy-tree 0.1.2
[INFO] tweaked toml for crates.io crate fuzzy-tree 0.1.2 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate fuzzy-tree 0.1.2 on toolchain beta-2025-09-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate fuzzy-tree 0.1.2 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" "+beta-2025-09-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5b5891e008fb6802b411a659aeaa119fea7de8aeccbccc84c609adf64c093608
[INFO] running `Command { std: "docker" "start" "-a" "5b5891e008fb6802b411a659aeaa119fea7de8aeccbccc84c609adf64c093608", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5b5891e008fb6802b411a659aeaa119fea7de8aeccbccc84c609adf64c093608", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5b5891e008fb6802b411a659aeaa119fea7de8aeccbccc84c609adf64c093608", kill_on_drop: false }`
[INFO] [stdout] 5b5891e008fb6802b411a659aeaa119fea7de8aeccbccc84c609adf64c093608
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ba25ef987c055916cb6a01f1940d2db82cc4aef30fe96b6a90887aa9623449b0
[INFO] running `Command { std: "docker" "start" "-a" "ba25ef987c055916cb6a01f1940d2db82cc4aef30fe96b6a90887aa9623449b0", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.68
[INFO] [stderr]    Compiling cc v1.0.52
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling rustc-demangle v0.1.16
[INFO] [stderr]    Compiling unicode-width v0.1.7
[INFO] [stderr]    Compiling quick-error v1.2.3
[INFO] [stderr]    Compiling regex-syntax v0.6.17
[INFO] [stderr]    Compiling numtoa v0.1.0
[INFO] [stderr]    Compiling termcolor v1.1.0
[INFO] [stderr]    Compiling vec_map v0.8.1
[INFO] [stderr]    Compiling thread_local v1.0.1
[INFO] [stderr]    Compiling humantime v1.3.0
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling aho-corasick v0.7.10
[INFO] [stderr]    Compiling backtrace-sys v0.1.36
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling termion v1.5.5
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling backtrace v0.3.46
[INFO] [stderr]    Compiling failure v0.1.7
[INFO] [stderr]    Compiling regex v1.3.6
[INFO] [stderr]    Compiling which v3.1.1
[INFO] [stderr]    Compiling env_logger v0.7.1
[INFO] [stderr]    Compiling fuzzy-tree v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: methods `add_parent` and `n_children` are never used
[INFO] [stdout]   --> src/path.rs:92:5
[INFO] [stdout]    |
[INFO] [stdout] 89 | pub trait PathBehaviour {
[INFO] [stdout]    |           ------------- methods in this trait
[INFO] [stdout] ...
[INFO] [stdout] 92 |     fn add_parent(&self, parent: &RcPath);
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 96 |     fn n_children(&self) -> usize;
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: implicit autoref creates a reference to the dereference of a raw pointer
[INFO] [stdout]    --> src/path.rs:126:13
[INFO] [stdout]     |
[INFO] [stdout] 126 |         unsafe { &(*self.as_ptr()).components[self.len() - 1] }
[INFO] [stdout]     |                   ^^-------------^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     this raw pointer has type `*mut path::Path`
[INFO] [stdout]     |
[INFO] [stdout]     = note: creating a reference requires the pointer target to be valid and imposes aliasing requirements
[INFO] [stdout] note: autoref is being applied to this expression, resulting in: `&Vec<String>`
[INFO] [stdout]    --> src/path.rs:126:13
[INFO] [stdout]     |
[INFO] [stdout] 126 |         unsafe { &(*self.as_ptr()).components[self.len() - 1] }
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     = note: `#[warn(dangerous_implicit_autorefs)]` on by default
[INFO] [stdout] help: try using a raw pointer method instead; or if this reference is intentional, make it explicit
[INFO] [stdout]     |
[INFO] [stdout] 126 |         unsafe { &(&(*self.as_ptr()).components)[self.len() - 1] }
[INFO] [stdout]     |                   ++                           +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.99s
[INFO] running `Command { std: "docker" "inspect" "ba25ef987c055916cb6a01f1940d2db82cc4aef30fe96b6a90887aa9623449b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ba25ef987c055916cb6a01f1940d2db82cc4aef30fe96b6a90887aa9623449b0", kill_on_drop: false }`
[INFO] [stdout] ba25ef987c055916cb6a01f1940d2db82cc4aef30fe96b6a90887aa9623449b0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a7cc9e55f6acb6640c06c28e622df7331015efe5656f7123504417d0d85ec50c
[INFO] running `Command { std: "docker" "start" "-a" "a7cc9e55f6acb6640c06c28e622df7331015efe5656f7123504417d0d85ec50c", kill_on_drop: false }`
[INFO] [stderr]    Compiling fuzzy-tree v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/tree.rs:525:7
[INFO] [stdout]     |
[INFO] [stdout] 525 |         let mut paths = create_test_paths();
[INFO] [stdout]     |             ----^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `add_parent` and `n_children` are never used
[INFO] [stdout]   --> src/path.rs:92:5
[INFO] [stdout]    |
[INFO] [stdout] 89 | pub trait PathBehaviour {
[INFO] [stdout]    |           ------------- methods in this trait
[INFO] [stdout] ...
[INFO] [stdout] 92 |     fn add_parent(&self, parent: &RcPath);
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 96 |     fn n_children(&self) -> usize;
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: implicit autoref creates a reference to the dereference of a raw pointer
[INFO] [stdout]    --> src/path.rs:126:13
[INFO] [stdout]     |
[INFO] [stdout] 126 |         unsafe { &(*self.as_ptr()).components[self.len() - 1] }
[INFO] [stdout]     |                   ^^-------------^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     this raw pointer has type `*mut path::Path`
[INFO] [stdout]     |
[INFO] [stdout]     = note: creating a reference requires the pointer target to be valid and imposes aliasing requirements
[INFO] [stdout] note: autoref is being applied to this expression, resulting in: `&Vec<String>`
[INFO] [stdout]    --> src/path.rs:126:13
[INFO] [stdout]     |
[INFO] [stdout] 126 |         unsafe { &(*self.as_ptr()).components[self.len() - 1] }
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     = note: `#[warn(dangerous_implicit_autorefs)]` on by default
[INFO] [stdout] help: try using a raw pointer method instead; or if this reference is intentional, make it explicit
[INFO] [stdout]     |
[INFO] [stdout] 126 |         unsafe { &(&(*self.as_ptr()).components)[self.len() - 1] }
[INFO] [stdout]     |                   ++                           +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/tree.rs:481:3
[INFO] [stdout]     |
[INFO] [stdout] 481 |         &paths[3].add_child(&paths[4]);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 481 |         let _ = &paths[3].add_child(&paths[4]);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/tree.rs:482:3
[INFO] [stdout]     |
[INFO] [stdout] 482 |         &paths[4].add_child(&paths[5]);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 482 |         let _ = &paths[4].add_child(&paths[5]);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/tree.rs:483:3
[INFO] [stdout]     |
[INFO] [stdout] 483 |         &paths[4].add_child(&paths[6]);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 483 |         let _ = &paths[4].add_child(&paths[6]);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/tree.rs:484:3
[INFO] [stdout]     |
[INFO] [stdout] 484 |         &paths[3].add_child(&paths[7]);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 484 |         let _ = &paths[3].add_child(&paths[7]);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/tree.rs:485:3
[INFO] [stdout]     |
[INFO] [stdout] 485 |         &paths[7].add_child(&paths[8]);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 485 |         let _ = &paths[7].add_child(&paths[8]);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/tree.rs:486:3
[INFO] [stdout]     |
[INFO] [stdout] 486 |         &paths[7].add_child(&paths[9]);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 486 |         let _ = &paths[7].add_child(&paths[9]);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.04s
[INFO] running `Command { std: "docker" "inspect" "a7cc9e55f6acb6640c06c28e622df7331015efe5656f7123504417d0d85ec50c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a7cc9e55f6acb6640c06c28e622df7331015efe5656f7123504417d0d85ec50c", kill_on_drop: false }`
[INFO] [stdout] a7cc9e55f6acb6640c06c28e622df7331015efe5656f7123504417d0d85ec50c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] e01a91fb4d1c4094c70467a9635672b42ad76976640a3439a6b923bfe126ca40
[INFO] running `Command { std: "docker" "start" "-a" "e01a91fb4d1c4094c70467a9635672b42ad76976640a3439a6b923bfe126ca40", kill_on_drop: false }`
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/tree.rs:525:7
[INFO] [stderr]     |
[INFO] [stderr] 525 |         let mut paths = create_test_paths();
[INFO] [stderr]     |             ----^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: methods `add_parent` and `n_children` are never used
[INFO] [stderr]   --> src/path.rs:92:5
[INFO] [stderr]    |
[INFO] [stderr] 89 | pub trait PathBehaviour {
[INFO] [stderr]    |           ------------- methods in this trait
[INFO] [stderr] ...
[INFO] [stderr] 92 |     fn add_parent(&self, parent: &RcPath);
[INFO] [stderr]    |        ^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 96 |     fn n_children(&self) -> usize;
[INFO] [stderr]    |        ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: implicit autoref creates a reference to the dereference of a raw pointer
[INFO] [stderr]    --> src/path.rs:126:13
[INFO] [stderr]     |
[INFO] [stderr] 126 |         unsafe { &(*self.as_ptr()).components[self.len() - 1] }
[INFO] [stderr]     |                   ^^-------------^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |                     |
[INFO] [stderr]     |                     this raw pointer has type `*mut path::Path`
[INFO] [stderr]     |
[INFO] [stderr]     = note: creating a reference requires the pointer target to be valid and imposes aliasing requirements
[INFO] [stderr] note: autoref is being applied to this expression, resulting in: `&Vec<String>`
[INFO] [stderr]    --> src/path.rs:126:13
[INFO] [stderr]     |
[INFO] [stderr] 126 |         unsafe { &(*self.as_ptr()).components[self.len() - 1] }
[INFO] [stderr]     |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     = note: `#[warn(dangerous_implicit_autorefs)]` on by default
[INFO] [stderr] help: try using a raw pointer method instead; or if this reference is intentional, make it explicit
[INFO] [stderr]     |
[INFO] [stderr] 126 |         unsafe { &(&(*self.as_ptr()).components)[self.len() - 1] }
[INFO] [stderr]     |                   ++                           +
[INFO] [stderr] 
[INFO] [stderr] warning: unused borrow that must be used
[INFO] [stderr]    --> src/tree.rs:481:3
[INFO] [stderr]     |
[INFO] [stderr] 481 |         &paths[3].add_child(&paths[4]);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 481 |         let _ = &paths[3].add_child(&paths[4]);
[INFO] [stderr]     |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused borrow that must be used
[INFO] [stderr]    --> src/tree.rs:482:3
[INFO] [stderr]     |
[INFO] [stderr] 482 |         &paths[4].add_child(&paths[5]);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stderr]     |
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 482 |         let _ = &paths[4].add_child(&paths[5]);
[INFO] [stderr]     |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused borrow that must be used
[INFO] [stderr]    --> src/tree.rs:483:3
[INFO] [stderr]     |
[INFO] [stderr] 483 |         &paths[4].add_child(&paths[6]);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stderr]     |
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 483 |         let _ = &paths[4].add_child(&paths[6]);
[INFO] [stderr]     |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused borrow that must be used
[INFO] [stderr]    --> src/tree.rs:484:3
[INFO] [stderr]     |
[INFO] [stderr] 484 |         &paths[3].add_child(&paths[7]);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stderr]     |
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 484 |         let _ = &paths[3].add_child(&paths[7]);
[INFO] [stderr]     |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused borrow that must be used
[INFO] [stderr]    --> src/tree.rs:485:3
[INFO] [stderr]     |
[INFO] [stderr] 485 |         &paths[7].add_child(&paths[8]);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stderr]     |
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 485 |         let _ = &paths[7].add_child(&paths[8]);
[INFO] [stderr]     |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused borrow that must be used
[INFO] [stderr]    --> src/tree.rs:486:3
[INFO] [stderr]     |
[INFO] [stderr] 486 |         &paths[7].add_child(&paths[9]);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stderr]     |
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 486 |         let _ = &paths[7].add_child(&paths[9]);
[INFO] [stderr]     |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: `fuzzy-tree` (bin "fztree" test) generated 9 warnings (run `cargo fix --bin "fztree" --tests` to apply 1 suggestion)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.10s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/fztree-cc79650db6be788d)
[INFO] [stdout] 
[INFO] [stdout] running 16 tests
[INFO] [stdout] test path::test::is_child_of_correctness ... ok
[INFO] [stdout] test path::test::len_correct ... ok
[INFO] [stdout] test path::test::basename_correct ... ok
[INFO] [stdout] test path::test::sorting_is_correct ... ok
[INFO] [stdout] test tree::test::adjacent_matches_are_colored_correctly ... ok
[INFO] [stdout] test tree::test::correct_lines_after_filtering ... ok
[INFO] [stdout] test tree::test::correct_n_descendants ... ok
[INFO] [stdout] test tree::test::correct_n_matched_after_matching_with_empty_string ... ok
[INFO] [stdout] test tree::test::correct_tree_string ... ok
[INFO] [stdout] test tree::test::create_tree_correct ... ok
[INFO] [stdout] test tree::test::match_paths_sets_matched_field_correctly ... ok
[INFO] [stdout] test tree::test::reducing_patterns ... ok
[INFO] [stdout] test tree::test::match_paths_colors_basename ... ok
[INFO] [stdout] test tree::test::tree_string_correct ... ok
[INFO] [stdout] test tree::test::merging_indices_works ... ok
[INFO] [stdout] test tree::test::update_matched_test ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 16 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "e01a91fb4d1c4094c70467a9635672b42ad76976640a3439a6b923bfe126ca40", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e01a91fb4d1c4094c70467a9635672b42ad76976640a3439a6b923bfe126ca40", kill_on_drop: false }`
[INFO] [stdout] e01a91fb4d1c4094c70467a9635672b42ad76976640a3439a6b923bfe126ca40