[INFO] cloning repository https://github.com/Ada-lave/rabbit_dump_searcher
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Ada-lave/rabbit_dump_searcher" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAda-lave%2Frabbit_dump_searcher", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAda-lave%2Frabbit_dump_searcher'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 66f9c05ce8eeb2bb44353afed8e6202395c84dfe
[INFO] checking Ada-lave/rabbit_dump_searcher against master#c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 for pr-146470
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAda-lave%2Frabbit_dump_searcher" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Ada-lave/rabbit_dump_searcher
[INFO] finished tweaking git repo https://github.com/Ada-lave/rabbit_dump_searcher
[INFO] tweaked toml for git repo https://github.com/Ada-lave/rabbit_dump_searcher written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Ada-lave/rabbit_dump_searcher on toolchain c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Ada-lave/rabbit_dump_searcher 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" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded grep-searcher v0.1.14
[INFO] [stderr]   Downloaded grep-matcher v0.1.7
[INFO] [stderr]   Downloaded encoding_rs_io v0.1.7
[INFO] [stderr]   Downloaded grep-regex v0.1.13
[INFO] [stderr]   Downloaded grep v0.3.2
[INFO] [stderr]   Downloaded grep-cli v0.1.11
[INFO] [stderr]   Downloaded grep-printer v0.2.2
[INFO] [stderr]   Downloaded globset v0.4.16
[INFO] [stderr]   Downloaded bstr v1.12.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4a61cd66e3ac2120956521985ec85632cd9b2f739f133922acd01e5ff974fcb6
[INFO] running `Command { std: "docker" "start" "-a" "4a61cd66e3ac2120956521985ec85632cd9b2f739f133922acd01e5ff974fcb6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4a61cd66e3ac2120956521985ec85632cd9b2f739f133922acd01e5ff974fcb6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4a61cd66e3ac2120956521985ec85632cd9b2f739f133922acd01e5ff974fcb6", kill_on_drop: false }`
[INFO] [stdout] 4a61cd66e3ac2120956521985ec85632cd9b2f739f133922acd01e5ff974fcb6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a843d890e8e44553c41e2417ec0db890866efd583ccebb9f145c536230ffef91
[INFO] running `Command { std: "docker" "start" "-a" "a843d890e8e44553c41e2417ec0db890866efd583ccebb9f145c536230ffef91", kill_on_drop: false }`
[INFO] [stderr]     Checking memchr v2.7.5
[INFO] [stderr]     Checking regex-syntax v0.8.5
[INFO] [stderr]     Checking log v0.4.27
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]     Checking termcolor v1.4.1
[INFO] [stderr]     Checking encoding_rs v0.8.35
[INFO] [stderr]     Checking memmap2 v0.9.7
[INFO] [stderr]     Checking aho-corasick v1.1.3
[INFO] [stderr]     Checking grep-matcher v0.1.7
[INFO] [stderr]     Checking regex-automata v0.4.9
[INFO] [stderr]     Checking encoding_rs_io v0.1.7
[INFO] [stderr]     Checking serde_json v1.0.142
[INFO] [stderr]     Checking bstr v1.12.0
[INFO] [stderr]     Checking globset v0.4.16
[INFO] [stderr]     Checking grep-searcher v0.1.14
[INFO] [stderr]     Checking grep-regex v0.1.13
[INFO] [stderr]     Checking grep-cli v0.1.11
[INFO] [stderr]     Checking grep-printer v0.2.2
[INFO] [stderr]     Checking grep v0.3.2
[INFO] [stderr]     Checking grep_exp v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `offset`
[INFO] [stdout]   --> src/indices/content.rs:53:48
[INFO] [stdout]    |
[INFO] [stdout] 53 |                     NodeValue::Data { address, offset, size } => {
[INFO] [stdout]    |                                                ^^^^^^ help: try ignoring the field: `offset: _`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `size`
[INFO] [stdout]   --> src/indices/content.rs:53:56
[INFO] [stdout]    |
[INFO] [stdout] 53 |                     NodeValue::Data { address, offset, size } => {
[INFO] [stdout]    |                                                        ^^^^ help: try ignoring the field: `size: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `left`
[INFO] [stdout]   --> src/indices/content.rs:62:39
[INFO] [stdout]    |
[INFO] [stdout] 62 |                     NodeValue::Link { left, right } => {}
[INFO] [stdout]    |                                       ^^^^ help: try ignoring the field: `left: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `right`
[INFO] [stdout]   --> src/indices/content.rs:62:45
[INFO] [stdout]    |
[INFO] [stdout] 62 |                     NodeValue::Link { left, right } => {}
[INFO] [stdout]    |                                             ^^^^^ help: try ignoring the field: `right: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `offset`
[INFO] [stdout]   --> src/indices/content.rs:78:48
[INFO] [stdout]    |
[INFO] [stdout] 78 |                     NodeValue::Data { address, offset, size } => {
[INFO] [stdout]    |                                                ^^^^^^ help: try ignoring the field: `offset: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `size`
[INFO] [stdout]   --> src/indices/content.rs:78:56
[INFO] [stdout]    |
[INFO] [stdout] 78 |                     NodeValue::Data { address, offset, size } => {
[INFO] [stdout]    |                                                        ^^^^ help: try ignoring the field: `size: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `left`
[INFO] [stdout]   --> src/indices/content.rs:87:39
[INFO] [stdout]    |
[INFO] [stdout] 87 |                     NodeValue::Link { left, right } => {}
[INFO] [stdout]    |                                       ^^^^ help: try ignoring the field: `left: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `right`
[INFO] [stdout]   --> src/indices/content.rs:87:45
[INFO] [stdout]    |
[INFO] [stdout] 87 |                     NodeValue::Link { left, right } => {}
[INFO] [stdout]    |                                             ^^^^^ help: try ignoring the field: `right: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `key`
[INFO] [stdout]    --> src/indices/content.rs:108:26
[INFO] [stdout]     |
[INFO] [stdout] 108 |             if let Some((key, value)) = line.split_once(':') {
[INFO] [stdout]     |                          ^^^ help: if this is intentional, prefix it with an underscore: `_key`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `res`
[INFO] [stdout]   --> src/main.rs:24:9
[INFO] [stdout]    |
[INFO] [stdout] 24 |     let res = binary_index.index().unwrap();
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_res`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `res`
[INFO] [stdout]   --> src/main.rs:53:9
[INFO] [stdout]    |
[INFO] [stdout] 53 |     let res = binary_index.index().unwrap();
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_res`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `size` is never read
[INFO] [stdout]  --> src/indices/binary.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub struct BinaryData<'a> {
[INFO] [stdout]   |            ---------- field in this struct
[INFO] [stdout] 9 |     pub size: 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: struct `RabbitFraming` is never constructed
[INFO] [stdout]   --> src/indices/binary.rs:13:12
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub struct RabbitFraming {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `ref_name` is never read
[INFO] [stdout]   --> src/indices/binary.rs:19:9
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub struct BinaryRef<'a> {
[INFO] [stdout]    |            --------- field in this struct
[INFO] [stdout] 19 |     pub ref_name: String,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_ref_by_name` is never used
[INFO] [stdout]   --> src/indices/binary.rs:71:12
[INFO] [stdout]    |
[INFO] [stdout] 31 | impl <'a> BinaryIndex <'a> {
[INFO] [stdout]    | -------------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 71 |     pub fn get_ref_by_name(&self, ref_name: &str) -> Option<&BinaryRef<'_>> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Link` is never constructed
[INFO] [stdout]   --> src/indices/content.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | enum NodeValue {
[INFO] [stdout]    |      --------- variant in this enum
[INFO] [stdout] 11 |     Link { left: String, right: Option<String> },
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `NodeValue` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 |     content_index.build();
[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] 20 |     let _ = content_index.build();
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:31:17
[INFO] [stdout]    |
[INFO] [stdout] 31 |                 file.write_all(mes.as_bytes());
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 31 |                 let _ = file.write_all(mes.as_bytes());
[INFO] [stdout]    |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:49:5
[INFO] [stdout]    |
[INFO] [stdout] 49 |     content_index.build();
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 49 |     let _ = content_index.build();
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:60:17
[INFO] [stdout]    |
[INFO] [stdout] 60 |                 file.write_all(mes.as_bytes());
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 60 |                 let _ = file.write_all(mes.as_bytes());
[INFO] [stdout]    |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `offset`
[INFO] [stdout]   --> src/indices/content.rs:53:48
[INFO] [stdout]    |
[INFO] [stdout] 53 |                     NodeValue::Data { address, offset, size } => {
[INFO] [stdout]    |                                                ^^^^^^ help: try ignoring the field: `offset: _`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `size`
[INFO] [stdout]   --> src/indices/content.rs:53:56
[INFO] [stdout]    |
[INFO] [stdout] 53 |                     NodeValue::Data { address, offset, size } => {
[INFO] [stdout]    |                                                        ^^^^ help: try ignoring the field: `size: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `left`
[INFO] [stdout]   --> src/indices/content.rs:62:39
[INFO] [stdout]    |
[INFO] [stdout] 62 |                     NodeValue::Link { left, right } => {}
[INFO] [stdout]    |                                       ^^^^ help: try ignoring the field: `left: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `right`
[INFO] [stdout]   --> src/indices/content.rs:62:45
[INFO] [stdout]    |
[INFO] [stdout] 62 |                     NodeValue::Link { left, right } => {}
[INFO] [stdout]    |                                             ^^^^^ help: try ignoring the field: `right: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `offset`
[INFO] [stdout]   --> src/indices/content.rs:78:48
[INFO] [stdout]    |
[INFO] [stdout] 78 |                     NodeValue::Data { address, offset, size } => {
[INFO] [stdout]    |                                                ^^^^^^ help: try ignoring the field: `offset: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `size`
[INFO] [stdout]   --> src/indices/content.rs:78:56
[INFO] [stdout]    |
[INFO] [stdout] 78 |                     NodeValue::Data { address, offset, size } => {
[INFO] [stdout]    |                                                        ^^^^ help: try ignoring the field: `size: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `left`
[INFO] [stdout]   --> src/indices/content.rs:87:39
[INFO] [stdout]    |
[INFO] [stdout] 87 |                     NodeValue::Link { left, right } => {}
[INFO] [stdout]    |                                       ^^^^ help: try ignoring the field: `left: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `right`
[INFO] [stdout]   --> src/indices/content.rs:87:45
[INFO] [stdout]    |
[INFO] [stdout] 87 |                     NodeValue::Link { left, right } => {}
[INFO] [stdout]    |                                             ^^^^^ help: try ignoring the field: `right: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `key`
[INFO] [stdout]    --> src/indices/content.rs:108:26
[INFO] [stdout]     |
[INFO] [stdout] 108 |             if let Some((key, value)) = line.split_once(':') {
[INFO] [stdout]     |                          ^^^ help: if this is intentional, prefix it with an underscore: `_key`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `res`
[INFO] [stdout]   --> src/main.rs:24:9
[INFO] [stdout]    |
[INFO] [stdout] 24 |     let res = binary_index.index().unwrap();
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_res`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `size` is never read
[INFO] [stdout]  --> src/indices/binary.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub struct BinaryData<'a> {
[INFO] [stdout]   |            ---------- field in this struct
[INFO] [stdout] 9 |     pub size: 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: struct `RabbitFraming` is never constructed
[INFO] [stdout]   --> src/indices/binary.rs:13:12
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub struct RabbitFraming {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `ref_name` is never read
[INFO] [stdout]   --> src/indices/binary.rs:19:9
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub struct BinaryRef<'a> {
[INFO] [stdout]    |            --------- field in this struct
[INFO] [stdout] 19 |     pub ref_name: String,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_ref_by_name` is never used
[INFO] [stdout]   --> src/indices/binary.rs:71:12
[INFO] [stdout]    |
[INFO] [stdout] 31 | impl <'a> BinaryIndex <'a> {
[INFO] [stdout]    | -------------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 71 |     pub fn get_ref_by_name(&self, ref_name: &str) -> Option<&BinaryRef<'_>> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Link` is never constructed
[INFO] [stdout]   --> src/indices/content.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | enum NodeValue {
[INFO] [stdout]    |      --------- variant in this enum
[INFO] [stdout] 11 |     Link { left: String, right: Option<String> },
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `NodeValue` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 |     content_index.build();
[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] 20 |     let _ = content_index.build();
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:31:17
[INFO] [stdout]    |
[INFO] [stdout] 31 |                 file.write_all(mes.as_bytes());
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 31 |                 let _ = file.write_all(mes.as_bytes());
[INFO] [stdout]    |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.43s
[INFO] running `Command { std: "docker" "inspect" "a843d890e8e44553c41e2417ec0db890866efd583ccebb9f145c536230ffef91", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a843d890e8e44553c41e2417ec0db890866efd583ccebb9f145c536230ffef91", kill_on_drop: false }`
[INFO] [stdout] a843d890e8e44553c41e2417ec0db890866efd583ccebb9f145c536230ffef91
