[INFO] cloning repository https://github.com/cattabiani/kfilesystem_rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/cattabiani/kfilesystem_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcattabiani%2Fkfilesystem_rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcattabiani%2Fkfilesystem_rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a4698e5854b1d363eb11d75084dd0efc1e43f7ef
[INFO] checking cattabiani/kfilesystem_rust against try#7dabc88a3b6768751847baeb49983f31ac5f20e2 for pr-155945
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcattabiani%2Fkfilesystem_rust" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/cattabiani/kfilesystem_rust
[INFO] finished tweaking git repo https://github.com/cattabiani/kfilesystem_rust
[INFO] tweaked toml for git repo https://github.com/cattabiani/kfilesystem_rust written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/cattabiani/kfilesystem_rust on toolchain 7dabc88a3b6768751847baeb49983f31ac5f20e2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7dabc88a3b6768751847baeb49983f31ac5f20e2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/cattabiani/kfilesystem_rust 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" "+7dabc88a3b6768751847baeb49983f31ac5f20e2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[INFO] checking cattabiani/kfilesystem_rust against try#7dabc88a3b6768751847baeb49983f31ac5f20e2 for pr-155945
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcattabiani%2Fkfilesystem_rust" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/cattabiani/kfilesystem_rust
[INFO] finished tweaking git repo https://github.com/cattabiani/kfilesystem_rust
[INFO] tweaked toml for git repo https://github.com/cattabiani/kfilesystem_rust written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/cattabiani/kfilesystem_rust on toolchain 7dabc88a3b6768751847baeb49983f31ac5f20e2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7dabc88a3b6768751847baeb49983f31ac5f20e2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/cattabiani/kfilesystem_rust 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" "+7dabc88a3b6768751847baeb49983f31ac5f20e2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[INFO] checking cattabiani/kfilesystem_rust against try#7dabc88a3b6768751847baeb49983f31ac5f20e2 for pr-155945
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcattabiani%2Fkfilesystem_rust" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/cattabiani/kfilesystem_rust
[INFO] finished tweaking git repo https://github.com/cattabiani/kfilesystem_rust
[INFO] tweaked toml for git repo https://github.com/cattabiani/kfilesystem_rust written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/cattabiani/kfilesystem_rust on toolchain 7dabc88a3b6768751847baeb49983f31ac5f20e2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7dabc88a3b6768751847baeb49983f31ac5f20e2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/cattabiani/kfilesystem_rust 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" "+7dabc88a3b6768751847baeb49983f31ac5f20e2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[INFO] checking cattabiani/kfilesystem_rust against try#7dabc88a3b6768751847baeb49983f31ac5f20e2 for pr-155945
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcattabiani%2Fkfilesystem_rust" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/cattabiani/kfilesystem_rust
[INFO] finished tweaking git repo https://github.com/cattabiani/kfilesystem_rust
[INFO] tweaked toml for git repo https://github.com/cattabiani/kfilesystem_rust written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/cattabiani/kfilesystem_rust on toolchain 7dabc88a3b6768751847baeb49983f31ac5f20e2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7dabc88a3b6768751847baeb49983f31ac5f20e2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/cattabiani/kfilesystem_rust 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" "+7dabc88a3b6768751847baeb49983f31ac5f20e2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+7dabc88a3b6768751847baeb49983f31ac5f20e2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f18d160ec7099b8be88a7f8a97ce02b677d5518ac31fe7c1fc0fdff23a45eb45
[INFO] running `Command { std: "docker" "start" "-a" "f18d160ec7099b8be88a7f8a97ce02b677d5518ac31fe7c1fc0fdff23a45eb45", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f18d160ec7099b8be88a7f8a97ce02b677d5518ac31fe7c1fc0fdff23a45eb45", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f18d160ec7099b8be88a7f8a97ce02b677d5518ac31fe7c1fc0fdff23a45eb45", kill_on_drop: false }`
[INFO] [stdout] f18d160ec7099b8be88a7f8a97ce02b677d5518ac31fe7c1fc0fdff23a45eb45
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+7dabc88a3b6768751847baeb49983f31ac5f20e2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3225d128ee23b55dc051007f95cc81a8e1f647cfd102169edb69aa031f03589e
[INFO] running `Command { std: "docker" "start" "-a" "3225d128ee23b55dc051007f95cc81a8e1f647cfd102169edb69aa031f03589e", kill_on_drop: false }`
[INFO] [stderr]     Checking kfilesystem v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `crate::node::Kfile`
[INFO] [stdout]  --> src/file_system.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::node::Kfile;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::node::Kfile`
[INFO] [stdout]  --> src/file_system.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::node::Kfile;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::node::Kfile`
[INFO] [stdout]    --> src/file_system.rs:199:9
[INFO] [stdout]     |
[INFO] [stdout] 199 |     use crate::node::Kfile;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/file_system.rs:77:13
[INFO] [stdout]    |
[INFO] [stdout] 77 |         let mut s = String::from("/") + &self.pwd;
[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: unused variable: `p`
[INFO] [stdout]   --> src/file_system.rs:98:39
[INFO] [stdout]    |
[INFO] [stdout] 98 |                     Some(Knode::Kfile(p)) => {
[INFO] [stdout]    |                                       ^ help: if this is intentional, prefix it with an underscore: `_p`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]    --> src/file_system.rs:189:63
[INFO] [stdout]     |
[INFO] [stdout] 189 |             "pwd" => KfileSystem::call_string(0, &args, &mut |args: &Vec<&str>| self.pwd()),
[INFO] [stdout]     |                                                               ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/file_system.rs:77:13
[INFO] [stdout]    |
[INFO] [stdout] 77 |         let mut s = String::from("/") + &self.pwd;
[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: unreachable pattern
[INFO] [stdout]   --> src/node.rs:19:13
[INFO] [stdout]    |
[INFO] [stdout] 18 |             Kfolder => return true,
[INFO] [stdout]    |             ------- matches any value
[INFO] [stdout] 19 |             _ => return false,
[INFO] [stdout]    |             ^ no value can reach this
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_patterns)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `Kfolder`
[INFO] [stdout]   --> src/node.rs:18:13
[INFO] [stdout]    |
[INFO] [stdout] 18 |             Kfolder => return true,
[INFO] [stdout]    |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_Kfolder`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/node.rs:25:13
[INFO] [stdout]    |
[INFO] [stdout] 24 |             Kfile => return true,
[INFO] [stdout]    |             ----- matches any value
[INFO] [stdout] 25 |             _ => return false,
[INFO] [stdout]    |             ^ no value can reach this
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `Kfile`
[INFO] [stdout]   --> src/node.rs:24:13
[INFO] [stdout]    |
[INFO] [stdout] 24 |             Kfile => return true,
[INFO] [stdout]    |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_Kfile`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `p`
[INFO] [stdout]   --> src/file_system.rs:98:39
[INFO] [stdout]    |
[INFO] [stdout] 98 |                     Some(Knode::Kfile(p)) => {
[INFO] [stdout]    |                                       ^ help: if this is intentional, prefix it with an underscore: `_p`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_mut` is never used
[INFO] [stdout]   --> src/file_system.rs:46:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | impl KfileSystem {
[INFO] [stdout]    | ---------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 46 |     fn get_mut(&mut self, s: &str) -> Option<&mut Knode> {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Kfile` is never constructed
[INFO] [stdout]  --> src/node.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub enum Knode {
[INFO] [stdout]   |          ----- variant in this enum
[INFO] [stdout] 4 |     Kfolder(Kfolder),
[INFO] [stdout] 5 |     Kfile(Kfile),
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Knode` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple associated items are never used
[INFO] [stdout]   --> src/node.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout]  8 | impl Knode {
[INFO] [stdout]    | ---------- associated items in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 12 |     pub fn new_kfile() -> Knode {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 16 |     pub fn is_kfolder(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 22 |     pub fn is_kfile(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 29 |     pub fn as_kfolder_mut(&mut self) -> Option<&mut Kfolder> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 36 |     pub fn as_kfile_mut(&mut self) -> Option<&mut Kfile> {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 43 |     pub fn as_kfolder(&self) -> Option<&Kfolder> {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 50 |     pub fn as_kfile(&self) -> Option<&Kfile> {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `text` is never read
[INFO] [stdout]   --> src/node.rs:60:5
[INFO] [stdout]    |
[INFO] [stdout] 59 | pub struct Kfile {
[INFO] [stdout]    |            ----- field in this struct
[INFO] [stdout] 60 |     text: String,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Kfile` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/node.rs:64:12
[INFO] [stdout]    |
[INFO] [stdout] 63 | impl Kfile {
[INFO] [stdout]    | ---------- associated function in this implementation
[INFO] [stdout] 64 |     pub fn new() -> Kfile {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `insert` is never used
[INFO] [stdout]   --> src/node.rs:90:12
[INFO] [stdout]    |
[INFO] [stdout] 76 | impl Kfolder {
[INFO] [stdout]    | ------------ method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 90 |     pub fn insert(&mut self, k: String, v: Knode) -> bool {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]    --> src/file_system.rs:189:63
[INFO] [stdout]     |
[INFO] [stdout] 189 |             "pwd" => KfileSystem::call_string(0, &args, &mut |args: &Vec<&str>| self.pwd()),
[INFO] [stdout]     |                                                               ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `Kfolder` should have a snake case name
[INFO] [stdout]   --> src/node.rs:18:13
[INFO] [stdout]    |
[INFO] [stdout] 18 |             Kfolder => return true,
[INFO] [stdout]    |             ^^^^^^^ help: convert the identifier to snake case (notice the capitalization): `kfolder`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `Kfile` should have a snake case name
[INFO] [stdout]   --> src/node.rs:24:13
[INFO] [stdout]    |
[INFO] [stdout] 24 |             Kfile => return true,
[INFO] [stdout]    |             ^^^^^ help: convert the identifier to snake case (notice the capitalization): `kfile`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `v`
[INFO] [stdout]    --> src/file_system.rs:279:34
[INFO] [stdout]     |
[INFO] [stdout] 279 |         if let Some(Knode::Kfile(v)) = fs.get_mut("miao/bau/bau.txt") {
[INFO] [stdout]     |                                  ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/node.rs:19:13
[INFO] [stdout]    |
[INFO] [stdout] 18 |             Kfolder => return true,
[INFO] [stdout]    |             ------- matches any value
[INFO] [stdout] 19 |             _ => return false,
[INFO] [stdout]    |             ^ no value can reach this
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_patterns)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `Kfolder`
[INFO] [stdout]   --> src/node.rs:18:13
[INFO] [stdout]    |
[INFO] [stdout] 18 |             Kfolder => return true,
[INFO] [stdout]    |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_Kfolder`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/node.rs:25:13
[INFO] [stdout]    |
[INFO] [stdout] 24 |             Kfile => return true,
[INFO] [stdout]    |             ----- matches any value
[INFO] [stdout] 25 |             _ => return false,
[INFO] [stdout]    |             ^ no value can reach this
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `Kfile`
[INFO] [stdout]   --> src/node.rs:24:13
[INFO] [stdout]    |
[INFO] [stdout] 24 |             Kfile => return true,
[INFO] [stdout]    |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_Kfile`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `is_kfolder`, `is_kfile`, `as_kfolder_mut`, `as_kfile_mut`, `as_kfolder`, and `as_kfile` are never used
[INFO] [stdout]   --> src/node.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout]  8 | impl Knode {
[INFO] [stdout]    | ---------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 16 |     pub fn is_kfolder(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 22 |     pub fn is_kfile(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 29 |     pub fn as_kfolder_mut(&mut self) -> Option<&mut Kfolder> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 36 |     pub fn as_kfile_mut(&mut self) -> Option<&mut Kfile> {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 43 |     pub fn as_kfolder(&self) -> Option<&Kfolder> {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 50 |     pub fn as_kfile(&self) -> Option<&Kfile> {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `text` is never read
[INFO] [stdout]   --> src/node.rs:60:5
[INFO] [stdout]    |
[INFO] [stdout] 59 | pub struct Kfile {
[INFO] [stdout]    |            ----- field in this struct
[INFO] [stdout] 60 |     text: String,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Kfile` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `Kfolder` should have a snake case name
[INFO] [stdout]   --> src/node.rs:18:13
[INFO] [stdout]    |
[INFO] [stdout] 18 |             Kfolder => return true,
[INFO] [stdout]    |             ^^^^^^^ help: convert the identifier to snake case (notice the capitalization): `kfolder`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `Kfile` should have a snake case name
[INFO] [stdout]   --> src/node.rs:24:13
[INFO] [stdout]    |
[INFO] [stdout] 24 |             Kfile => return true,
[INFO] [stdout]    |             ^^^^^ help: convert the identifier to snake case (notice the capitalization): `kfile`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.13s
[INFO] running `Command { std: "docker" "inspect" "3225d128ee23b55dc051007f95cc81a8e1f647cfd102169edb69aa031f03589e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3225d128ee23b55dc051007f95cc81a8e1f647cfd102169edb69aa031f03589e", kill_on_drop: false }`
[INFO] [stdout] 3225d128ee23b55dc051007f95cc81a8e1f647cfd102169edb69aa031f03589e
