[INFO] cloning repository https://github.com/mplanchard/dur
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mplanchard/dur" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmplanchard%2Fdur", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmplanchard%2Fdur'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ffe279e007ab33f2fb7856668af78652b8370729
[INFO] testing mplanchard/dur against 1.100.0-beta.1 for beta-1.100-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmplanchard%2Fdur" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/mplanchard/dur
[INFO] finished tweaking git repo https://github.com/mplanchard/dur
[INFO] tweaked toml for git repo https://github.com/mplanchard/dur written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/mplanchard/dur 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 git repo https://github.com/mplanchard/dur 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: Cargo.toml: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024`
[INFO] [stderr] warning: `dur` (manifest) generated 1 warning
[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-4-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:3111399a4047eeb3a02b7a90e478d715f38a8c6669b5c4b49d30a17385265909" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 10b51bb1459784ec002269491a95c68b2ee19fd5980b8c2fc084cbe9b7e4a0bc
[INFO] running `Command { std: "docker" "start" "10b51bb1459784ec002269491a95c68b2ee19fd5980b8c2fc084cbe9b7e4a0bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "10b51bb1459784ec002269491a95c68b2ee19fd5980b8c2fc084cbe9b7e4a0bc", 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" "10b51bb1459784ec002269491a95c68b2ee19fd5980b8c2fc084cbe9b7e4a0bc" "/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" "10b51bb1459784ec002269491a95c68b2ee19fd5980b8c2fc084cbe9b7e4a0bc", 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" "10b51bb1459784ec002269491a95c68b2ee19fd5980b8c2fc084cbe9b7e4a0bc" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] warning: Cargo.toml: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024`
[INFO] [stderr] warning: `dur` (manifest) generated 1 warning
[INFO] [stderr]    Compiling dur v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variant `kB` should have an upper camel case name
[INFO] [stdout]   --> src/main.rs:89:5
[INFO] [stdout]    |
[INFO] [stdout] 89 |     kB,
[INFO] [stdout]    |     ^^ help: convert the identifier to upper camel case (notice the capitalization): `KB`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_camel_case_types)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/main.rs:109:119
[INFO] [stdout]     |
[INFO] [stdout] 109 | fn _traverse_from_metadata<P: AsRef<Path>> (path: P, metadata: fs::Metadata, levels: u16, mut sum: u64) -> io::Result<(u64)> {
[INFO] [stdout]     |                                                                                                                       ^   ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 109 - fn _traverse_from_metadata<P: AsRef<Path>> (path: P, metadata: fs::Metadata, levels: u16, mut sum: u64) -> io::Result<(u64)> {
[INFO] [stdout] 109 + fn _traverse_from_metadata<P: AsRef<Path>> (path: P, metadata: fs::Metadata, levels: u16, mut sum: u64) -> io::Result<u64> {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `byte`
[INFO] [stdout]    --> src/main.rs:103:25
[INFO] [stdout]     |
[INFO] [stdout] 103 |     fn add_bytes(&self, byte: u64) {
[INFO] [stdout]     |                         ^^^^ help: if this is intentional, prefix it with an underscore: `_byte`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `FSEntry` is never used
[INFO] [stdout]  --> src/main.rs:8:6
[INFO] [stdout]   |
[INFO] [stdout] 8 | enum FSEntry {
[INFO] [stdout]   |      ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Directory` is never constructed
[INFO] [stdout]   --> src/main.rs:16:8
[INFO] [stdout]    |
[INFO] [stdout] 16 | struct Directory {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `from` and `populate` are never used
[INFO] [stdout]   --> src/main.rs:23:8
[INFO] [stdout]    |
[INFO] [stdout] 22 | impl Directory {
[INFO] [stdout]    | -------------- associated items in this implementation
[INFO] [stdout] 23 |     fn from(path: PathBuf, size: u64) -> Self {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 26 |     fn populate(&self) -> Self {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `File` is never constructed
[INFO] [stdout]   --> src/main.rs:46:8
[INFO] [stdout]    |
[INFO] [stdout] 46 | struct File {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `from` is never used
[INFO] [stdout]   --> src/main.rs:51:8
[INFO] [stdout]    |
[INFO] [stdout] 50 | impl File {
[INFO] [stdout]    | --------- associated function in this implementation
[INFO] [stdout] 51 |     fn from(path: PathBuf, size: u64) -> Self {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `SymLink` is never constructed
[INFO] [stdout]   --> src/main.rs:57:8
[INFO] [stdout]    |
[INFO] [stdout] 57 | struct SymLink {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `from` is never used
[INFO] [stdout]   --> src/main.rs:62:8
[INFO] [stdout]    |
[INFO] [stdout] 61 | impl SymLink {
[INFO] [stdout]    | ------------ associated function in this implementation
[INFO] [stdout] 62 |     fn from(path: PathBuf, size: u64) -> Self {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `from` is never used
[INFO] [stdout]   --> src/main.rs:68:8
[INFO] [stdout]    |
[INFO] [stdout] 67 | impl FSEntry {
[INFO] [stdout]    | ------------ associated function in this implementation
[INFO] [stdout] 68 |     fn from(path: PathBuf, metadata: fs::Metadata) -> FSEntry {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `SIPrefixes` is never used
[INFO] [stdout]   --> src/main.rs:88:6
[INFO] [stdout]    |
[INFO] [stdout] 88 | enum SIPrefixes {
[INFO] [stdout]    |      ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `DriveSpace` is never constructed
[INFO] [stdout]   --> src/main.rs:98:8
[INFO] [stdout]    |
[INFO] [stdout] 98 | struct DriveSpace {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `add_bytes` is never used
[INFO] [stdout]    --> src/main.rs:103:8
[INFO] [stdout]     |
[INFO] [stdout] 102 | impl DriveSpace {
[INFO] [stdout]     | --------------- method in this implementation
[INFO] [stdout] 103 |     fn add_bytes(&self, byte: u64) {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:167:5
[INFO] [stdout]     |
[INFO] [stdout] 167 |     naive();
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[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] 167 |     let _ = naive();
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.25s
[INFO] running `Command { std: "docker" "inspect" "10b51bb1459784ec002269491a95c68b2ee19fd5980b8c2fc084cbe9b7e4a0bc", 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" "10b51bb1459784ec002269491a95c68b2ee19fd5980b8c2fc084cbe9b7e4a0bc" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] warning: Cargo.toml: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024`
[INFO] [stderr] warning: `dur` (manifest) generated 1 warning
[INFO] [stderr]    Compiling dur v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variant `kB` should have an upper camel case name
[INFO] [stdout]   --> src/main.rs:89:5
[INFO] [stdout]    |
[INFO] [stdout] 89 |     kB,
[INFO] [stdout]    |     ^^ help: convert the identifier to upper camel case (notice the capitalization): `KB`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_camel_case_types)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/main.rs:109:119
[INFO] [stdout]     |
[INFO] [stdout] 109 | fn _traverse_from_metadata<P: AsRef<Path>> (path: P, metadata: fs::Metadata, levels: u16, mut sum: u64) -> io::Result<(u64)> {
[INFO] [stdout]     |                                                                                                                       ^   ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 109 - fn _traverse_from_metadata<P: AsRef<Path>> (path: P, metadata: fs::Metadata, levels: u16, mut sum: u64) -> io::Result<(u64)> {
[INFO] [stdout] 109 + fn _traverse_from_metadata<P: AsRef<Path>> (path: P, metadata: fs::Metadata, levels: u16, mut sum: u64) -> io::Result<u64> {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `byte`
[INFO] [stdout]    --> src/main.rs:103:25
[INFO] [stdout]     |
[INFO] [stdout] 103 |     fn add_bytes(&self, byte: u64) {
[INFO] [stdout]     |                         ^^^^ help: if this is intentional, prefix it with an underscore: `_byte`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `FSEntry` is never used
[INFO] [stdout]  --> src/main.rs:8:6
[INFO] [stdout]   |
[INFO] [stdout] 8 | enum FSEntry {
[INFO] [stdout]   |      ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Directory` is never constructed
[INFO] [stdout]   --> src/main.rs:16:8
[INFO] [stdout]    |
[INFO] [stdout] 16 | struct Directory {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `from` and `populate` are never used
[INFO] [stdout]   --> src/main.rs:23:8
[INFO] [stdout]    |
[INFO] [stdout] 22 | impl Directory {
[INFO] [stdout]    | -------------- associated items in this implementation
[INFO] [stdout] 23 |     fn from(path: PathBuf, size: u64) -> Self {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 26 |     fn populate(&self) -> Self {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `File` is never constructed
[INFO] [stdout]   --> src/main.rs:46:8
[INFO] [stdout]    |
[INFO] [stdout] 46 | struct File {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `from` is never used
[INFO] [stdout]   --> src/main.rs:51:8
[INFO] [stdout]    |
[INFO] [stdout] 50 | impl File {
[INFO] [stdout]    | --------- associated function in this implementation
[INFO] [stdout] 51 |     fn from(path: PathBuf, size: u64) -> Self {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `SymLink` is never constructed
[INFO] [stdout]   --> src/main.rs:57:8
[INFO] [stdout]    |
[INFO] [stdout] 57 | struct SymLink {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `from` is never used
[INFO] [stdout]   --> src/main.rs:62:8
[INFO] [stdout]    |
[INFO] [stdout] 61 | impl SymLink {
[INFO] [stdout]    | ------------ associated function in this implementation
[INFO] [stdout] 62 |     fn from(path: PathBuf, size: u64) -> Self {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `from` is never used
[INFO] [stdout]   --> src/main.rs:68:8
[INFO] [stdout]    |
[INFO] [stdout] 67 | impl FSEntry {
[INFO] [stdout]    | ------------ associated function in this implementation
[INFO] [stdout] 68 |     fn from(path: PathBuf, metadata: fs::Metadata) -> FSEntry {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `SIPrefixes` is never used
[INFO] [stdout]   --> src/main.rs:88:6
[INFO] [stdout]    |
[INFO] [stdout] 88 | enum SIPrefixes {
[INFO] [stdout]    |      ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `DriveSpace` is never constructed
[INFO] [stdout]   --> src/main.rs:98:8
[INFO] [stdout]    |
[INFO] [stdout] 98 | struct DriveSpace {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `add_bytes` is never used
[INFO] [stdout]    --> src/main.rs:103:8
[INFO] [stdout]     |
[INFO] [stdout] 102 | impl DriveSpace {
[INFO] [stdout]     | --------------- method in this implementation
[INFO] [stdout] 103 |     fn add_bytes(&self, byte: u64) {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:167:5
[INFO] [stdout]     |
[INFO] [stdout] 167 |     naive();
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[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] 167 |     let _ = naive();
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.21s
[INFO] running `Command { std: "docker" "inspect" "10b51bb1459784ec002269491a95c68b2ee19fd5980b8c2fc084cbe9b7e4a0bc", 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" "10b51bb1459784ec002269491a95c68b2ee19fd5980b8c2fc084cbe9b7e4a0bc" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] warning: Cargo.toml: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024`
[INFO] [stderr] warning: `dur` (manifest) generated 1 warning
[INFO] [stderr] warning: variant `kB` should have an upper camel case name
[INFO] [stderr]   --> src/main.rs:89:5
[INFO] [stderr]    |
[INFO] [stderr] 89 |     kB,
[INFO] [stderr]    |     ^^ help: convert the identifier to upper camel case (notice the capitalization): `KB`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_camel_case_types)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/main.rs:109:119
[INFO] [stderr]     |
[INFO] [stderr] 109 | fn _traverse_from_metadata<P: AsRef<Path>> (path: P, metadata: fs::Metadata, levels: u16, mut sum: u64) -> io::Result<(u64)> {
[INFO] [stderr]     |                                                                                                                       ^   ^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 109 - fn _traverse_from_metadata<P: AsRef<Path>> (path: P, metadata: fs::Metadata, levels: u16, mut sum: u64) -> io::Result<(u64)> {
[INFO] [stderr] 109 + fn _traverse_from_metadata<P: AsRef<Path>> (path: P, metadata: fs::Metadata, levels: u16, mut sum: u64) -> io::Result<u64> {
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `byte`
[INFO] [stderr]    --> src/main.rs:103:25
[INFO] [stderr]     |
[INFO] [stderr] 103 |     fn add_bytes(&self, byte: u64) {
[INFO] [stderr]     |                         ^^^^ help: if this is intentional, prefix it with an underscore: `_byte`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: enum `FSEntry` is never used
[INFO] [stderr]  --> src/main.rs:8:6
[INFO] [stderr]   |
[INFO] [stderr] 8 | enum FSEntry {
[INFO] [stderr]   |      ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Directory` is never constructed
[INFO] [stderr]   --> src/main.rs:16:8
[INFO] [stderr]    |
[INFO] [stderr] 16 | struct Directory {
[INFO] [stderr]    |        ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated items `from` and `populate` are never used
[INFO] [stderr]   --> src/main.rs:23:8
[INFO] [stderr]    |
[INFO] [stderr] 22 | impl Directory {
[INFO] [stderr]    | -------------- associated items in this implementation
[INFO] [stderr] 23 |     fn from(path: PathBuf, size: u64) -> Self {
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] ...
[INFO] [stderr] 26 |     fn populate(&self) -> Self {
[INFO] [stderr]    |        ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `File` is never constructed
[INFO] [stderr]   --> src/main.rs:46:8
[INFO] [stderr]    |
[INFO] [stderr] 46 | struct File {
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function `from` is never used
[INFO] [stderr]   --> src/main.rs:51:8
[INFO] [stderr]    |
[INFO] [stderr] 50 | impl File {
[INFO] [stderr]    | --------- associated function in this implementation
[INFO] [stderr] 51 |     fn from(path: PathBuf, size: u64) -> Self {
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `SymLink` is never constructed
[INFO] [stderr]   --> src/main.rs:57:8
[INFO] [stderr]    |
[INFO] [stderr] 57 | struct SymLink {
[INFO] [stderr]    |        ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function `from` is never used
[INFO] [stderr]   --> src/main.rs:62:8
[INFO] [stderr]    |
[INFO] [stderr] 61 | impl SymLink {
[INFO] [stderr]    | ------------ associated function in this implementation
[INFO] [stderr] 62 |     fn from(path: PathBuf, size: u64) -> Self {
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function `from` is never used
[INFO] [stderr]   --> src/main.rs:68:8
[INFO] [stderr]    |
[INFO] [stderr] 67 | impl FSEntry {
[INFO] [stderr]    | ------------ associated function in this implementation
[INFO] [stderr] 68 |     fn from(path: PathBuf, metadata: fs::Metadata) -> FSEntry {
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum `SIPrefixes` is never used
[INFO] [stderr]   --> src/main.rs:88:6
[INFO] [stderr]    |
[INFO] [stderr] 88 | enum SIPrefixes {
[INFO] [stderr]    |      ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `DriveSpace` is never constructed
[INFO] [stderr]   --> src/main.rs:98:8
[INFO] [stderr]    |
[INFO] [stderr] 98 | struct DriveSpace {
[INFO] [stderr]    |        ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method `add_bytes` is never used
[INFO] [stderr]    --> src/main.rs:103:8
[INFO] [stderr]     |
[INFO] [stderr] 102 | impl DriveSpace {
[INFO] [stderr]     | --------------- method in this implementation
[INFO] [stderr] 103 |     fn add_bytes(&self, byte: u64) {
[INFO] [stderr]     |        ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/main.rs:167:5
[INFO] [stderr]     |
[INFO] [stderr] 167 |     naive();
[INFO] [stderr]     |     ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[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] 167 |     let _ = naive();
[INFO] [stderr]     |     +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: `dur` (bin "dur" test) generated 15 warnings (run `cargo fix --bin "dur" -p dur --tests` to apply 2 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/build/dur/9d00c4f54583404e/out/dur-9d00c4f54583404e)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test tests::pass ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "10b51bb1459784ec002269491a95c68b2ee19fd5980b8c2fc084cbe9b7e4a0bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "10b51bb1459784ec002269491a95c68b2ee19fd5980b8c2fc084cbe9b7e4a0bc", kill_on_drop: false }`
[INFO] [stdout] 10b51bb1459784ec002269491a95c68b2ee19fd5980b8c2fc084cbe9b7e4a0bc
