[INFO] cloning repository https://github.com/emgniddikur/rust_sandbox
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/emgniddikur/rust_sandbox" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Femgniddikur%2Frust_sandbox", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Femgniddikur%2Frust_sandbox'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 12c14c6ad3c4de764d96ee03fb5e4cf1c0a424af
[INFO] testing emgniddikur/rust_sandbox against 1.75.0 for beta-1.76-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Femgniddikur%2Frust_sandbox" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/emgniddikur/rust_sandbox on toolchain 1.75.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-0-tc1/source/rust-toolchain
[INFO] started tweaking git repo https://github.com/emgniddikur/rust_sandbox
[INFO] finished tweaking git repo https://github.com/emgniddikur/rust_sandbox
[INFO] tweaked toml for git repo https://github.com/emgniddikur/rust_sandbox written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/emgniddikur/rust_sandbox 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" "+1.75.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded aws-smithy-async v0.52.0
[INFO] [stderr]   Downloaded aws-sdk-sso v0.22.0
[INFO] [stderr]   Downloaded aws-sig-auth v0.52.0
[INFO] [stderr]   Downloaded aws-smithy-types v0.52.0
[INFO] [stderr]   Downloaded aws-smithy-query v0.52.0
[INFO] [stderr]   Downloaded aws-smithy-http-tower v0.52.0
[INFO] [stderr]   Downloaded aws-smithy-xml v0.52.0
[INFO] [stderr]   Downloaded aws-smithy-json v0.52.0
[INFO] [stderr]   Downloaded aws-http v0.52.0
[INFO] [stderr]   Downloaded aws-endpoint v0.52.0
[INFO] [stderr]   Downloaded aws-sigv4 v0.52.0
[INFO] [stderr]   Downloaded aws-types v0.52.0
[INFO] [stderr]   Downloaded aws-smithy-http v0.52.0
[INFO] [stderr]   Downloaded aws-sdk-sts v0.22.0
[INFO] [stderr]   Downloaded aws-sdk-dynamodb v0.22.0
[INFO] [stderr]   Downloaded aws-config v0.52.0
[INFO] [stderr]   Downloaded aws-smithy-client v0.52.0
[INFO] [stderr]   Downloaded rusoto_dynamodb v0.48.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a939ad8e6dd0c2ad48e82448e51616778a98fd46a4c2411c9e9d44c059d2729d
[INFO] running `Command { std: "docker" "start" "-a" "a939ad8e6dd0c2ad48e82448e51616778a98fd46a4c2411c9e9d44c059d2729d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a939ad8e6dd0c2ad48e82448e51616778a98fd46a4c2411c9e9d44c059d2729d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a939ad8e6dd0c2ad48e82448e51616778a98fd46a4c2411c9e9d44c059d2729d", kill_on_drop: false }`
[INFO] [stdout] a939ad8e6dd0c2ad48e82448e51616778a98fd46a4c2411c9e9d44c059d2729d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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=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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8f51d901c7ee9891c44128b08a9156ce7434263adeebd7f1c91ed998de3a329a
[INFO] running `Command { std: "docker" "start" "-a" "8f51d901c7ee9891c44128b08a9156ce7434263adeebd7f1c91ed998de3a329a", kill_on_drop: false }`
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[INFO] [stderr]    Compiling thiserror v1.0.37
[INFO] [stderr]    Compiling os_str_bytes v6.3.0
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[INFO] [stderr]    Compiling jpeg-decoder v0.2.6
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[INFO] [stderr]    Compiling nu-ansi-term v0.46.0
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[INFO] [stderr]    Compiling png v0.17.7
[INFO] [stderr]    Compiling thiserror-impl v1.0.37
[INFO] [stderr]    Compiling aws-smithy-http v0.52.0
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[INFO] [stderr]    Compiling hyper-tls v0.5.0
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[INFO] [stderr]    Compiling thread_local v1.1.4
[INFO] [stderr]    Compiling rusoto_signature v0.48.0
[INFO] [stderr]    Compiling humantime v2.1.0
[INFO] [stderr]    Compiling aws-endpoint v0.52.0
[INFO] [stderr]    Compiling aws-sig-auth v0.52.0
[INFO] [stderr]    Compiling aws-http v0.52.0
[INFO] [stderr]    Compiling scoped_threadpool v0.1.9
[INFO] [stderr]    Compiling bytemuck v1.12.3
[INFO] [stderr]    Compiling aws-sdk-sts v0.22.0
[INFO] [stderr]    Compiling aws-sdk-sso v0.22.0
[INFO] [stderr]    Compiling aws-sdk-dynamodb v0.22.0
[INFO] [stderr]    Compiling byteorder v1.4.3
[INFO] [stderr]    Compiling dotenv v0.15.0
[INFO] [stderr]    Compiling unicode-segmentation v1.10.0
[INFO] [stderr]    Compiling textwrap v0.15.1
[INFO] [stderr]    Compiling aws-config v0.52.0
[INFO] [stderr]    Compiling strsim v0.10.0
[INFO] [stderr]    Compiling image v0.24.4
[INFO] [stderr]    Compiling clap v3.2.22
[INFO] [stderr]    Compiling rusoto_dynamodb v0.48.0
[INFO] [stderr]    Compiling tracing-subscriber v0.3.16
[INFO] [stderr]    Compiling env_logger v0.9.1
[INFO] [stderr]    Compiling tests v0.1.0 (/opt/rustwide/workdir/tests)
[INFO] [stdout] warning: function `greet` is never used
[INFO] [stdout]  --> tests/src/message.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn greet(name: &str) -> String {
[INFO] [stdout]   |    ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `add` is never used
[INFO] [stdout]  --> tests/src/unit_tests.rs:9:4
[INFO] [stdout]   |
[INFO] [stdout] 9 | fn add(left: i32, right: i32) -> i32 {
[INFO] [stdout]   |    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling logs v0.1.0 (/opt/rustwide/workdir/logs)
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling image v0.1.0 (/opt/rustwide/workdir/image)
[INFO] [stderr]    Compiling error_handling v0.1.0 (/opt/rustwide/workdir/error_handling)
[INFO] [stdout] warning: unused variable: `some_v`
[INFO] [stdout]   --> error_handling/src/main.rs:47:9
[INFO] [stdout]    |
[INFO] [stdout] 47 |     let some_v = div(2, 2).ok();
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_some_v`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `some_e`
[INFO] [stdout]   --> error_handling/src/main.rs:48:9
[INFO] [stdout]    |
[INFO] [stdout] 48 |     let some_e = div(2, 0).err();
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_some_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `display_result` is never used
[INFO] [stdout]   --> error_handling/src/main.rs:22:4
[INFO] [stdout]    |
[INFO] [stdout] 22 | fn display_result<T: std::fmt::Display, E: std::fmt::Display>(result: Result<T, E>) {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `multiple_error` is never used
[INFO] [stdout]   --> error_handling/src/error_propagation.rs:23:4
[INFO] [stdout]    |
[INFO] [stdout] 23 | fn multiple_error(s: &str) -> Result<i32, Box<dyn std::error::Error>> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling string v0.1.0 (/opt/rustwide/workdir/string)
[INFO] [stderr]    Compiling validation v0.1.0 (/opt/rustwide/workdir/validation)
[INFO] [stdout] warning: function `len` is never used
[INFO] [stdout]  --> validation/src/validation.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 |     fn len(val: &str) -> usize {
[INFO] [stdout]   |        ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `min` is never used
[INFO] [stdout]  --> validation/src/validation.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 |     pub fn min(val: &str, min_len: usize) -> bool {
[INFO] [stdout]   |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `max` is never used
[INFO] [stdout]   --> validation/src/validation.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 12 |     pub fn max(val: &str, max_len: usize) -> bool {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling serde_sandbox v0.1.0 (/opt/rustwide/workdir/serde_sandbox)
[INFO] [stderr]    Compiling type_conversion v0.1.0 (/opt/rustwide/workdir/type_conversion)
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]   --> type_conversion/src/from_into.rs:20:9
[INFO] [stdout]    |
[INFO] [stdout] 20 |     let a = A::from(b);
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `b_vec`
[INFO] [stdout]   --> type_conversion/src/from_into.rs:25:9
[INFO] [stdout]    |
[INFO] [stdout] 25 |     let b_vec = a_vec.into_iter().map(|a| a.into()).collect::<Vec<B>>();
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_b_vec`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]   --> type_conversion/src/from_into2.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 14 |     let a: A = b.into();
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]   --> type_conversion/src/from_into.rs:17:4
[INFO] [stdout]    |
[INFO] [stdout] 17 | fn main() {
[INFO] [stdout]    |    ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `vec` is never used
[INFO] [stdout]   --> type_conversion/src/from_into.rs:23:4
[INFO] [stdout]    |
[INFO] [stdout] 23 | fn vec() {
[INFO] [stdout]    |    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]   --> type_conversion/src/from_into2.rs:12:4
[INFO] [stdout]    |
[INFO] [stdout] 12 | fn main() {
[INFO] [stdout]    |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling persistence v0.1.0 (/opt/rustwide/workdir/persistence)
[INFO] [stdout] warning: unused variable: `payload`
[INFO] [stdout]   --> persistence/src/arc_rwlock.rs:36:22
[INFO] [stdout]    |
[INFO] [stdout] 36 |     fn create(&self, payload: CreateTodo) -> Todo {
[INFO] [stdout]    |                      ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_payload`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `id`
[INFO] [stdout]   --> persistence/src/arc_rwlock.rs:40:19
[INFO] [stdout]    |
[INFO] [stdout] 40 |     fn get(&self, id: Id) -> Todo {
[INFO] [stdout]    |                   ^^ help: if this is intentional, prefix it with an underscore: `_id`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `id`
[INFO] [stdout]   --> persistence/src/arc_rwlock.rs:44:22
[INFO] [stdout]    |
[INFO] [stdout] 44 |     fn update(&self, id: Id, payload: UpdateTodo) -> Todo {
[INFO] [stdout]    |                      ^^ help: if this is intentional, prefix it with an underscore: `_id`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `payload`
[INFO] [stdout]   --> persistence/src/arc_rwlock.rs:44:30
[INFO] [stdout]    |
[INFO] [stdout] 44 |     fn update(&self, id: Id, payload: UpdateTodo) -> Todo {
[INFO] [stdout]    |                              ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_payload`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `id`
[INFO] [stdout]   --> persistence/src/arc_rwlock.rs:48:22
[INFO] [stdout]    |
[INFO] [stdout] 48 |     fn delete(&self, id: Id) {
[INFO] [stdout]    |                      ^^ help: if this is intentional, prefix it with an underscore: `_id`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]  --> persistence/src/arc_mutex.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn main() {}
[INFO] [stdout]   |    ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `read_todos_ref`, and `write_todos_ref` are never used
[INFO] [stdout]   --> persistence/src/arc_rwlock.rs:18:12
[INFO] [stdout]    |
[INFO] [stdout] 17 | impl TodoRepository {
[INFO] [stdout]    | ------------------- associated items in this implementation
[INFO] [stdout] 18 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 22 |     fn read_todos_ref(&self) -> RwLockReadGuard<Todos> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 26 |     fn write_todos_ref(&self) -> RwLockWriteGuard<Todos> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]  --> persistence/src/rc_refcell.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn main() {}
[INFO] [stdout]   |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `id` and `text` are never read
[INFO] [stdout]  --> persistence/src/todo.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct Todo {
[INFO] [stdout]   |            ---- fields in this struct
[INFO] [stdout] 6 |     id: Id,
[INFO] [stdout]   |     ^^
[INFO] [stdout] 7 |     text: Text,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> persistence/src/todo.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 10 | impl Todo {
[INFO] [stdout]    | --------- associated function in this implementation
[INFO] [stdout] 11 |     pub fn new(id: Id, text: Text) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `text` is never read
[INFO] [stdout]   --> persistence/src/todo.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub struct CreateTodo {
[INFO] [stdout]    |            ---------- field in this struct
[INFO] [stdout] 17 |     text: Text,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `text` is never read
[INFO] [stdout]   --> persistence/src/todo.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub struct UpdateTodo {
[INFO] [stdout]    |            ---------- field in this struct
[INFO] [stdout] 21 |     text: Text,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling macros v0.1.0 (/opt/rustwide/workdir/macros)
[INFO] [stdout] warning: 12 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling types v0.1.0 (/opt/rustwide/workdir/types)
[INFO] [stderr]    Compiling generics v0.1.0 (/opt/rustwide/workdir/generics)
[INFO] [stderr]    Compiling ownership v0.1.0 (/opt/rustwide/workdir/ownership)
[INFO] [stderr]    Compiling iterators v0.1.0 (/opt/rustwide/workdir/iterators)
[INFO] [stderr]    Compiling concurrency v0.1.0 (/opt/rustwide/workdir/concurrency)
[INFO] [stdout] warning: variants `Node` and `Nil` are never constructed
[INFO] [stdout]  --> iterators/src/list.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | enum List<T> {
[INFO] [stdout]   |      ---- variants in this enum
[INFO] [stdout] 3 |     Node { data: T, next: Box<List<T>> },
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 4 |     Nil,
[INFO] [stdout]   |     ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `List` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `cons`, and `iter` are never used
[INFO] [stdout]   --> iterators/src/list.rs:8:8
[INFO] [stdout]    |
[INFO] [stdout] 7  | impl<T> List<T> {
[INFO] [stdout]    | --------------- associated items in this implementation
[INFO] [stdout] 8  |     fn new() -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 12 |     fn cons(self, data: T) -> Self {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 19 |     fn iter(&self) -> ListIter<T> {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling ddd v0.1.0 (/opt/rustwide/workdir/ddd)
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling document v0.1.0 (/opt/rustwide/workdir/document)
[INFO] [stderr]    Compiling smart_pointers v0.1.0 (/opt/rustwide/workdir/smart_pointers)
[INFO] [stderr]    Compiling modules v0.1.0 (/opt/rustwide/workdir/modules)
[INFO] [stdout] warning: unused variable: `b`
[INFO] [stdout]   --> smart_pointers/src/rc_arc/rc.rs:34:9
[INFO] [stdout]    |
[INFO] [stdout] 34 |     let b = Cons(3, Rc::clone(&a));
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling env v0.1.0 (/opt/rustwide/workdir/env)
[INFO] [stdout] warning: unused variable: `c`
[INFO] [stdout]   --> smart_pointers/src/rc_arc/rc.rs:38:13
[INFO] [stdout]    |
[INFO] [stdout] 38 |         let c = Cons(4, Rc::clone(&a));
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_c`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `fn1` is never used
[INFO] [stdout]   --> smart_pointers/src/box_.rs:14:4
[INFO] [stdout]    |
[INFO] [stdout] 14 | fn fn1() {
[INFO] [stdout]    |    ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `List` is never used
[INFO] [stdout]   --> smart_pointers/src/box_.rs:19:6
[INFO] [stdout]    |
[INFO] [stdout] 19 | enum List<T> {
[INFO] [stdout]    |      ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `fn2` is never used
[INFO] [stdout]   --> smart_pointers/src/box_.rs:24:4
[INFO] [stdout]    |
[INFO] [stdout] 24 | fn fn2() {
[INFO] [stdout]    |    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]   --> smart_pointers/src/box_.rs:31:8
[INFO] [stdout]    |
[INFO] [stdout] 31 | pub fn main() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> smart_pointers/src/deref.rs:35:8
[INFO] [stdout]    |
[INFO] [stdout] 34 | impl<T> MyBox<T> {
[INFO] [stdout]    | ---------------- associated function in this implementation
[INFO] [stdout] 35 |     fn new(x: T) -> MyBox<T> {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `List` is never used
[INFO] [stdout]   --> smart_pointers/src/rc_arc/rc.rs:23:6
[INFO] [stdout]    |
[INFO] [stdout] 23 | enum List {
[INFO] [stdout]    |      ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]   --> smart_pointers/src/rc_arc/rc.rs:30:8
[INFO] [stdout]    |
[INFO] [stdout] 30 | pub fn main() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling collections v0.1.0 (/opt/rustwide/workdir/collections)
[INFO] [stderr]    Compiling structs v0.1.0 (/opt/rustwide/workdir/structs)
[INFO] [stderr]    Compiling enums v0.1.0 (/opt/rustwide/workdir/enums)
[INFO] [stdout] warning: unused variable: `square`
[INFO] [stdout]   --> structs/src/structs.rs:39:13
[INFO] [stdout]    |
[INFO] [stdout] 39 |         let square = Rectangle::square(1);
[INFO] [stdout]    |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_square`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `black`
[INFO] [stdout]   --> structs/src/tuple_structs.rs:12:13
[INFO] [stdout]    |
[INFO] [stdout] 12 |     let mut black = Color(0, 0, 0);
[INFO] [stdout]    |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_black`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> structs/src/tuple_structs.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout] 12 |     let mut black = Color(0, 0, 0);
[INFO] [stdout]    |         ----^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Rectangle` is never constructed
[INFO] [stdout]  --> structs/src/structs.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct Rectangle {
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `area` and `square` are never used
[INFO] [stdout]   --> structs/src/structs.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | impl Rectangle {
[INFO] [stdout]    | -------------- associated items in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 14 |     fn area(&self) -> u32 {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 20 |     fn square(size: u32) -> Rectangle {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `func` is never used
[INFO] [stdout]   --> structs/src/structs.rs:28:8
[INFO] [stdout]    |
[INFO] [stdout] 28 | pub fn func() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Color` is never constructed
[INFO] [stdout]  --> structs/src/tuple_structs.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | struct Color(i32, i32, i32);
[INFO] [stdout]   |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Position` is never constructed
[INFO] [stdout]  --> structs/src/tuple_structs.rs:9:8
[INFO] [stdout]   |
[INFO] [stdout] 9 | struct Position(i32, i32, i32);
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `func` is never used
[INFO] [stdout]   --> structs/src/tuple_structs.rs:11:4
[INFO] [stdout]    |
[INFO] [stdout] 11 | fn func() {
[INFO] [stdout]    |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling unit_testing v0.1.0 (/opt/rustwide/workdir/unit_testing)
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling traits v0.1.0 (/opt/rustwide/workdir/traits)
[INFO] [stdout] warning: function `sum` is never used
[INFO] [stdout]  --> unit_testing/src/calculator.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn sum(first: i32, second: i32) -> i32 {
[INFO] [stdout]   |    ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling attributes v0.1.0 (/opt/rustwide/workdir/attributes)
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]   --> traits/src/associated_types.rs:49:8
[INFO] [stdout]    |
[INFO] [stdout] 49 | pub fn main() {}
[INFO] [stdout]    |        ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `item` is never read
[INFO] [stdout]  --> traits/src/derive/debug.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | struct Struct {
[INFO] [stdout]   |        ------ field in this struct
[INFO] [stdout] 7 |     item: i32,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Struct` 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]   --> traits/src/derive/debug.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | impl Struct {
[INFO] [stdout]    | ----------- associated function in this implementation
[INFO] [stdout] 11 |     fn new() -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Item` is never constructed
[INFO] [stdout]   --> traits/src/derive/debug.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | enum Enum {
[INFO] [stdout]    |      ---- variant in this enum
[INFO] [stdout] 18 |     Item,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Enum` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]   --> traits/src/derive/debug.rs:21:8
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub fn main() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]  --> traits/src/derive/default.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub fn main() {}
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]   --> traits/src/derive/eq.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub fn main() {}
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]   --> traits/src/derive/ord.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub fn main() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> traits/src/derive/partial_eq.rs:15:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | impl Struct {
[INFO] [stdout]    | ----------- associated function in this implementation
[INFO] [stdout] 15 |     fn new() -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Item1` and `Item2` are never constructed
[INFO] [stdout]   --> traits/src/derive/partial_eq.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 21 | enum Enum {
[INFO] [stdout]    |      ---- variants in this enum
[INFO] [stdout] 22 |     Item1,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 23 |     Item2,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Enum` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]   --> traits/src/derive/partial_eq.rs:26:8
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub fn main() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Item1` and `Item2` are never constructed
[INFO] [stdout]   --> traits/src/derive/partial_ord.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 18 | enum Enum {
[INFO] [stdout]    |      ---- variants in this enum
[INFO] [stdout] 19 |     Item1,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 20 |     Item2,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]   --> traits/src/derive/partial_ord.rs:23:8
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub fn main() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `error_a` is never used
[INFO] [stdout]   --> traits/src/trait_object.rs:59:8
[INFO] [stdout]    |
[INFO] [stdout] 59 |     fn error_a() -> Result<(), ErrorA> {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `error_b` is never used
[INFO] [stdout]   --> traits/src/trait_object.rs:63:8
[INFO] [stdout]    |
[INFO] [stdout] 63 |     fn error_b() -> Result<(), ErrorB> {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `error_a_b` is never used
[INFO] [stdout]   --> traits/src/trait_object.rs:67:8
[INFO] [stdout]    |
[INFO] [stdout] 67 |     fn error_a_b() -> Result<(), Box<dyn Error>> {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Foo` is never constructed
[INFO] [stdout]  --> attributes/src/cfg_attr.rs:2:8
[INFO] [stdout]   |
[INFO] [stdout] 2 | struct Foo {}
[INFO] [stdout]   |        ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 16 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling time v0.1.0 (/opt/rustwide/workdir/time)
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling io v0.1.0 (/opt/rustwide/workdir/io)
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling features v0.1.0 (/opt/rustwide/workdir/features)
[INFO] [stderr]    Compiling cargo v0.1.0 (/opt/rustwide/workdir/cargo)
[INFO] [stderr]    Compiling closures v0.1.0 (/opt/rustwide/workdir/closures)
[INFO] [stderr]    Compiling tree v0.1.0 (/opt/rustwide/workdir/tree)
[INFO] [stdout] warning: function `factorial` is never used
[INFO] [stdout]  --> closures/src/recursive.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn factorial(n: u32) -> u32 {
[INFO] [stdout]   |    ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling sandbox v0.1.0 (/opt/rustwide/workdir/sandbox)
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling cli v0.1.0 (/opt/rustwide/workdir/cli)
[INFO] [stderr]    Compiling aws-sdk v0.1.0 (/opt/rustwide/workdir/aws-sdk)
[INFO] [stderr]    Compiling rusoto v0.1.0 (/opt/rustwide/workdir/rusoto)
[INFO] [stdout] warning: function `remove_attributes` is never used
[INFO] [stdout]  --> rusoto/src/main.rs:5:10
[INFO] [stdout]   |
[INFO] [stdout] 5 | async fn remove_attributes(table_name: &str, attribute_names: Vec<&str>) -> anyhow::Result<()> {
[INFO] [stdout]   |          ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 01s
[INFO] running `Command { std: "docker" "inspect" "8f51d901c7ee9891c44128b08a9156ce7434263adeebd7f1c91ed998de3a329a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8f51d901c7ee9891c44128b08a9156ce7434263adeebd7f1c91ed998de3a329a", kill_on_drop: false }`
[INFO] [stdout] 8f51d901c7ee9891c44128b08a9156ce7434263adeebd7f1c91ed998de3a329a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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=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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 90f1b85c7e44fbd2b6a21bb02a87be5081e76ce0c14a6c968a3f814a9c723803
[INFO] running `Command { std: "docker" "start" "-a" "90f1b85c7e44fbd2b6a21bb02a87be5081e76ce0c14a6c968a3f814a9c723803", kill_on_drop: false }`
[INFO] [stderr]    Compiling yansi v0.5.1
[INFO] [stderr]    Compiling diff v0.1.13
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]   --> type_conversion/src/from_into.rs:20:9
[INFO] [stdout]    |
[INFO] [stdout] 20 |     let a = A::from(b);
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `b_vec`
[INFO] [stdout]   --> type_conversion/src/from_into.rs:25:9
[INFO] [stdout]    |
[INFO] [stdout] 25 |     let b_vec = a_vec.into_iter().map(|a| a.into()).collect::<Vec<B>>();
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_b_vec`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]   --> type_conversion/src/from_into2.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 14 |     let a: A = b.into();
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]   --> type_conversion/src/from_into.rs:17:4
[INFO] [stdout]    |
[INFO] [stdout] 17 | fn main() {
[INFO] [stdout]    |    ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `vec` is never used
[INFO] [stdout]   --> type_conversion/src/from_into.rs:23:4
[INFO] [stdout]    |
[INFO] [stdout] 23 | fn vec() {
[INFO] [stdout]    |    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]   --> type_conversion/src/from_into2.rs:12:4
[INFO] [stdout]    |
[INFO] [stdout] 12 | fn main() {
[INFO] [stdout]    |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]   --> traits/src/associated_types.rs:49:8
[INFO] [stdout]    |
[INFO] [stdout] 49 | pub fn main() {}
[INFO] [stdout]    |        ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `item` is never read
[INFO] [stdout]  --> traits/src/derive/debug.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | struct Struct {
[INFO] [stdout]   |        ------ field in this struct
[INFO] [stdout] 7 |     item: i32,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Struct` 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]   --> traits/src/derive/debug.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | impl Struct {
[INFO] [stdout]    | ----------- associated function in this implementation
[INFO] [stdout] 11 |     fn new() -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Item` is never constructed
[INFO] [stdout]   --> traits/src/derive/debug.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | enum Enum {
[INFO] [stdout]    |      ---- variant in this enum
[INFO] [stdout] 18 |     Item,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Enum` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]   --> traits/src/derive/debug.rs:21:8
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub fn main() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]  --> traits/src/derive/default.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub fn main() {}
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]   --> traits/src/derive/eq.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub fn main() {}
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]   --> traits/src/derive/ord.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub fn main() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> traits/src/derive/partial_eq.rs:15:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | impl Struct {
[INFO] [stdout]    | ----------- associated function in this implementation
[INFO] [stdout] 15 |     fn new() -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Item1` and `Item2` are never constructed
[INFO] [stdout]   --> traits/src/derive/partial_eq.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 21 | enum Enum {
[INFO] [stdout]    |      ---- variants in this enum
[INFO] [stdout] 22 |     Item1,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 23 |     Item2,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Enum` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]   --> traits/src/derive/partial_eq.rs:26:8
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub fn main() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Item1` and `Item2` are never constructed
[INFO] [stdout]   --> traits/src/derive/partial_ord.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 18 | enum Enum {
[INFO] [stdout]    |      ---- variants in this enum
[INFO] [stdout] 19 |     Item1,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 20 |     Item2,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]   --> traits/src/derive/partial_ord.rs:23:8
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub fn main() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `error_a` is never used
[INFO] [stdout]   --> traits/src/trait_object.rs:59:8
[INFO] [stdout]    |
[INFO] [stdout] 59 |     fn error_a() -> Result<(), ErrorA> {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `error_b` is never used
[INFO] [stdout]   --> traits/src/trait_object.rs:63:8
[INFO] [stdout]    |
[INFO] [stdout] 63 |     fn error_b() -> Result<(), ErrorB> {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `error_a_b` is never used
[INFO] [stdout]   --> traits/src/trait_object.rs:67:8
[INFO] [stdout]    |
[INFO] [stdout] 67 |     fn error_a_b() -> Result<(), Box<dyn Error>> {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 16 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `b`
[INFO] [stdout]   --> smart_pointers/src/rc_arc/rc.rs:34:9
[INFO] [stdout]    |
[INFO] [stdout] 34 |     let b = Cons(3, Rc::clone(&a));
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `c`
[INFO] [stdout]   --> smart_pointers/src/rc_arc/rc.rs:38:13
[INFO] [stdout]    |
[INFO] [stdout] 38 |         let c = Cons(4, Rc::clone(&a));
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_c`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `fn1` is never used
[INFO] [stdout]   --> smart_pointers/src/box_.rs:14:4
[INFO] [stdout]    |
[INFO] [stdout] 14 | fn fn1() {
[INFO] [stdout]    |    ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `List` is never used
[INFO] [stdout]   --> smart_pointers/src/box_.rs:19:6
[INFO] [stdout]    |
[INFO] [stdout] 19 | enum List<T> {
[INFO] [stdout]    |      ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `fn2` is never used
[INFO] [stdout]   --> smart_pointers/src/box_.rs:24:4
[INFO] [stdout]    |
[INFO] [stdout] 24 | fn fn2() {
[INFO] [stdout]    |    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]   --> smart_pointers/src/box_.rs:31:8
[INFO] [stdout]    |
[INFO] [stdout] 31 | pub fn main() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> smart_pointers/src/deref.rs:35:8
[INFO] [stdout]    |
[INFO] [stdout] 34 | impl<T> MyBox<T> {
[INFO] [stdout]    | ---------------- associated function in this implementation
[INFO] [stdout] 35 |     fn new(x: T) -> MyBox<T> {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `List` is never used
[INFO] [stdout]   --> smart_pointers/src/rc_arc/rc.rs:23:6
[INFO] [stdout]    |
[INFO] [stdout] 23 | enum List {
[INFO] [stdout]    |      ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]   --> smart_pointers/src/rc_arc/rc.rs:30:8
[INFO] [stdout]    |
[INFO] [stdout] 30 | pub fn main() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `square`
[INFO] [stdout]   --> structs/src/structs.rs:39:13
[INFO] [stdout]    |
[INFO] [stdout] 39 |         let square = Rectangle::square(1);
[INFO] [stdout]    |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_square`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `black`
[INFO] [stdout]   --> structs/src/tuple_structs.rs:12:13
[INFO] [stdout]    |
[INFO] [stdout] 12 |     let mut black = Color(0, 0, 0);
[INFO] [stdout]    |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_black`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> structs/src/tuple_structs.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout] 12 |     let mut black = Color(0, 0, 0);
[INFO] [stdout]    |         ----^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Rectangle` is never constructed
[INFO] [stdout]  --> structs/src/structs.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct Rectangle {
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `area` and `square` are never used
[INFO] [stdout]   --> structs/src/structs.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | impl Rectangle {
[INFO] [stdout]    | -------------- associated items in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 14 |     fn area(&self) -> u32 {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 20 |     fn square(size: u32) -> Rectangle {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `func` is never used
[INFO] [stdout]   --> structs/src/structs.rs:28:8
[INFO] [stdout]    |
[INFO] [stdout] 28 | pub fn func() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Color` is never constructed
[INFO] [stdout]  --> structs/src/tuple_structs.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | struct Color(i32, i32, i32);
[INFO] [stdout]   |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Position` is never constructed
[INFO] [stdout]  --> structs/src/tuple_structs.rs:9:8
[INFO] [stdout]   |
[INFO] [stdout] 9 | struct Position(i32, i32, i32);
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `func` is never used
[INFO] [stdout]   --> structs/src/tuple_structs.rs:11:4
[INFO] [stdout]    |
[INFO] [stdout] 11 | fn func() {
[INFO] [stdout]    |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling logs v0.1.0 (/opt/rustwide/workdir/logs)
[INFO] [stderr]    Compiling rusoto v0.1.0 (/opt/rustwide/workdir/rusoto)
[INFO] [stderr]    Compiling error_handling v0.1.0 (/opt/rustwide/workdir/error_handling)
[INFO] [stderr]    Compiling cli v0.1.0 (/opt/rustwide/workdir/cli)
[INFO] [stderr]    Compiling string v0.1.0 (/opt/rustwide/workdir/string)
[INFO] [stderr]    Compiling validation v0.1.0 (/opt/rustwide/workdir/validation)
[INFO] [stdout] warning: unused variable: `some_v`
[INFO] [stdout]   --> error_handling/src/main.rs:47:9
[INFO] [stdout]    |
[INFO] [stdout] 47 |     let some_v = div(2, 2).ok();
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_some_v`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `some_e`
[INFO] [stdout]   --> error_handling/src/main.rs:48:9
[INFO] [stdout]    |
[INFO] [stdout] 48 |     let some_e = div(2, 0).err();
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_some_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `display_result` is never used
[INFO] [stdout]   --> error_handling/src/main.rs:22:4
[INFO] [stdout]    |
[INFO] [stdout] 22 | fn display_result<T: std::fmt::Display, E: std::fmt::Display>(result: Result<T, E>) {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `multiple_error` is never used
[INFO] [stdout]   --> error_handling/src/error_propagation.rs:23:4
[INFO] [stdout]    |
[INFO] [stdout] 23 | fn multiple_error(s: &str) -> Result<i32, Box<dyn std::error::Error>> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `remove_attributes` is never used
[INFO] [stdout]  --> rusoto/src/main.rs:5:10
[INFO] [stdout]   |
[INFO] [stdout] 5 | async fn remove_attributes(table_name: &str, attribute_names: Vec<&str>) -> anyhow::Result<()> {
[INFO] [stdout]   |          ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling pretty_assertions v1.3.0
[INFO] [stderr]    Compiling aws-sdk v0.1.0 (/opt/rustwide/workdir/aws-sdk)
[INFO] [stderr]    Compiling image v0.1.0 (/opt/rustwide/workdir/image)
[INFO] [stderr]    Compiling tests v0.1.0 (/opt/rustwide/workdir/tests)
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `greet` is never used
[INFO] [stdout]  --> tests/src/message.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn greet(name: &str) -> String {
[INFO] [stdout]   |    ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `add` is never used
[INFO] [stdout]  --> tests/src/unit_tests.rs:9:4
[INFO] [stdout]   |
[INFO] [stdout] 9 | fn add(left: i32, right: i32) -> i32 {
[INFO] [stdout]   |    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling serde_sandbox v0.1.0 (/opt/rustwide/workdir/serde_sandbox)
[INFO] [stderr]    Compiling type_conversion v0.1.0 (/opt/rustwide/workdir/type_conversion)
[INFO] [stderr]    Compiling io v0.1.0 (/opt/rustwide/workdir/io)
[INFO] [stderr]    Compiling smart_pointers v0.1.0 (/opt/rustwide/workdir/smart_pointers)
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]   --> type_conversion/src/from_into.rs:20:9
[INFO] [stdout]    |
[INFO] [stdout] 20 |     let a = A::from(b);
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `b_vec`
[INFO] [stdout]   --> type_conversion/src/from_into.rs:25:9
[INFO] [stdout]    |
[INFO] [stdout] 25 |     let b_vec = a_vec.into_iter().map(|a| a.into()).collect::<Vec<B>>();
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_b_vec`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]   --> type_conversion/src/from_into2.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 14 |     let a: A = b.into();
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]   --> type_conversion/src/from_into.rs:17:4
[INFO] [stdout]    |
[INFO] [stdout] 17 | fn main() {
[INFO] [stdout]    |    ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `vec` is never used
[INFO] [stdout]   --> type_conversion/src/from_into.rs:23:4
[INFO] [stdout]    |
[INFO] [stdout] 23 | fn vec() {
[INFO] [stdout]    |    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]   --> type_conversion/src/from_into2.rs:12:4
[INFO] [stdout]    |
[INFO] [stdout] 12 | fn main() {
[INFO] [stdout]    |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling features v0.1.0 (/opt/rustwide/workdir/features)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> smart_pointers/src/deref.rs:81:13
[INFO] [stdout]    |
[INFO] [stdout] 81 |         let mut name = MyBox::new("name".to_string());
[INFO] [stdout]    |             ----^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `b`
[INFO] [stdout]   --> smart_pointers/src/rc_arc/rc.rs:34:9
[INFO] [stdout]    |
[INFO] [stdout] 34 |     let b = Cons(3, Rc::clone(&a));
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `c`
[INFO] [stdout]   --> smart_pointers/src/rc_arc/rc.rs:38:13
[INFO] [stdout]    |
[INFO] [stdout] 38 |         let c = Cons(4, Rc::clone(&a));
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_c`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling modules v0.1.0 (/opt/rustwide/workdir/modules)
[INFO] [stdout] warning: function `fn1` is never used
[INFO] [stdout]   --> smart_pointers/src/box_.rs:14:4
[INFO] [stdout]    |
[INFO] [stdout] 14 | fn fn1() {
[INFO] [stdout]    |    ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `List` is never used
[INFO] [stdout]   --> smart_pointers/src/box_.rs:19:6
[INFO] [stdout]    |
[INFO] [stdout] 19 | enum List<T> {
[INFO] [stdout]    |      ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `fn2` is never used
[INFO] [stdout]   --> smart_pointers/src/box_.rs:24:4
[INFO] [stdout]    |
[INFO] [stdout] 24 | fn fn2() {
[INFO] [stdout]    |    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]   --> smart_pointers/src/box_.rs:31:8
[INFO] [stdout]    |
[INFO] [stdout] 31 | pub fn main() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `List` is never used
[INFO] [stdout]   --> smart_pointers/src/rc_arc/rc.rs:23:6
[INFO] [stdout]    |
[INFO] [stdout] 23 | enum List {
[INFO] [stdout]    |      ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]   --> smart_pointers/src/rc_arc/rc.rs:30:8
[INFO] [stdout]    |
[INFO] [stdout] 30 | pub fn main() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling unit_testing v0.1.0 (/opt/rustwide/workdir/unit_testing)
[INFO] [stderr]    Compiling generics v0.1.0 (/opt/rustwide/workdir/generics)
[INFO] [stderr]    Compiling env v0.1.0 (/opt/rustwide/workdir/env)
[INFO] [stderr]    Compiling collections v0.1.0 (/opt/rustwide/workdir/collections)
[INFO] [stderr]    Compiling attributes v0.1.0 (/opt/rustwide/workdir/attributes)
[INFO] [stderr]    Compiling concurrency v0.1.0 (/opt/rustwide/workdir/concurrency)
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Foo` is never constructed
[INFO] [stdout]  --> attributes/src/cfg_attr.rs:2:8
[INFO] [stdout]   |
[INFO] [stdout] 2 | struct Foo {}
[INFO] [stdout]   |        ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling document v0.1.0 (/opt/rustwide/workdir/document)
[INFO] [stderr]    Compiling ownership v0.1.0 (/opt/rustwide/workdir/ownership)
[INFO] [stderr]    Compiling structs v0.1.0 (/opt/rustwide/workdir/structs)
[INFO] [stdout] warning: variable `a` is assigned to, but never used
[INFO] [stdout]   --> ownership/src/lifetimes.rs:49:13
[INFO] [stdout]    |
[INFO] [stdout] 49 |         let a;
[INFO] [stdout]    |             ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider using `_a` instead
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `a` is never read
[INFO] [stdout]   --> ownership/src/lifetimes.rs:52:13
[INFO] [stdout]    |
[INFO] [stdout] 52 |             a = &b;
[INFO] [stdout]    |             ^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling cargo v0.1.0 (/opt/rustwide/workdir/cargo)
[INFO] [stdout] warning: variable `result` is assigned to, but never used
[INFO] [stdout]   --> ownership/src/lifetimes.rs:79:13
[INFO] [stdout]    |
[INFO] [stdout] 79 |         let result;
[INFO] [stdout]    |             ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider using `_result` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `result` is never read
[INFO] [stdout]   --> ownership/src/lifetimes.rs:84:13
[INFO] [stdout]    |
[INFO] [stdout] 84 |             result = f(&s1, &s2);
[INFO] [stdout]    |             ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]   --> ownership/src/lifetimes.rs:75:18
[INFO] [stdout]    |
[INFO] [stdout] 75 |         fn f<'a>(x: &'a str, y: &'a str) -> &'a str {
[INFO] [stdout]    |                  ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]   --> ownership/src/lifetimes.rs:75:30
[INFO] [stdout]    |
[INFO] [stdout] 75 |         fn f<'a>(x: &'a str, y: &'a str) -> &'a str {
[INFO] [stdout]    |                              ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]   --> ownership/src/lifetimes.rs:92:22
[INFO] [stdout]    |
[INFO] [stdout] 92 |         fn f<'a, 'b>(x: &'a str, y: &'b str) -> &'a str {
[INFO] [stdout]    |                      ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]   --> ownership/src/lifetimes.rs:92:34
[INFO] [stdout]    |
[INFO] [stdout] 92 |         fn f<'a, 'b>(x: &'a str, y: &'b str) -> &'a str {
[INFO] [stdout]    |                                  ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]    --> ownership/src/lifetimes.rs:121:26
[INFO] [stdout]     |
[INFO] [stdout] 121 |         fn method(&self, s: &str) -> &str {
[INFO] [stdout]     |                          ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `b`
[INFO] [stdout]   --> ownership/src/references.rs:29:13
[INFO] [stdout]    |
[INFO] [stdout] 29 |         let b = &mut a;
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `a` is never read
[INFO] [stdout]   --> ownership/src/references.rs:30:9
[INFO] [stdout]    |
[INFO] [stdout] 30 |         a = 1;
[INFO] [stdout]    |         ^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `b`
[INFO] [stdout]   --> ownership/src/references.rs:38:13
[INFO] [stdout]    |
[INFO] [stdout] 38 |         let b = &mut a;
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `b`
[INFO] [stdout]   --> ownership/src/references.rs:50:13
[INFO] [stdout]    |
[INFO] [stdout] 50 |         let b = &mut a;
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `c`
[INFO] [stdout]   --> ownership/src/references.rs:91:13
[INFO] [stdout]    |
[INFO] [stdout] 91 |         let c = &mut b;
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_c`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `c`
[INFO] [stdout]    --> ownership/src/references.rs:102:13
[INFO] [stdout]     |
[INFO] [stdout] 102 |         let c = &mut b;
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_c`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `c`
[INFO] [stdout]    --> ownership/src/references.rs:125:13
[INFO] [stdout]     |
[INFO] [stdout] 125 |         let c = b;
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_c`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `only_one_arg` is never used
[INFO] [stdout]    --> ownership/src/lifetimes.rs:108:8
[INFO] [stdout]     |
[INFO] [stdout] 108 |     fn only_one_arg(s: &str) -> &str {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `S` is never constructed
[INFO] [stdout]    --> ownership/src/lifetimes.rs:115:12
[INFO] [stdout]     |
[INFO] [stdout] 115 |     struct S<'a> {
[INFO] [stdout]     |            ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `method` and `method2` are never used
[INFO] [stdout]    --> ownership/src/lifetimes.rs:121:12
[INFO] [stdout]     |
[INFO] [stdout] 119 |     impl<'a> S<'a> {
[INFO] [stdout]     |     -------------- methods in this implementation
[INFO] [stdout] 120 |         // ライフタイム注釈を省略した場合、selfのライフタイムが出力ライフタイム引数に代入される
[INFO] [stdout] 121 |         fn method(&self, s: &str) -> &str {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 126 |         fn method2<'b>(&self, s: &'b str) -> &'b str {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `square`
[INFO] [stdout]   --> structs/src/structs.rs:39:13
[INFO] [stdout]    |
[INFO] [stdout] 39 |         let square = Rectangle::square(1);
[INFO] [stdout]    |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_square`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `black`
[INFO] [stdout]   --> structs/src/tuple_structs.rs:12:13
[INFO] [stdout]    |
[INFO] [stdout] 12 |     let mut black = Color(0, 0, 0);
[INFO] [stdout]    |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_black`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> structs/src/tuple_structs.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout] 12 |     let mut black = Color(0, 0, 0);
[INFO] [stdout]    |         ----^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Rectangle` is never constructed
[INFO] [stdout]  --> structs/src/structs.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct Rectangle {
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `area` and `square` are never used
[INFO] [stdout]   --> structs/src/structs.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | impl Rectangle {
[INFO] [stdout]    | -------------- associated items in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 14 |     fn area(&self) -> u32 {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 20 |     fn square(size: u32) -> Rectangle {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `func` is never used
[INFO] [stdout]   --> structs/src/structs.rs:28:8
[INFO] [stdout]    |
[INFO] [stdout] 28 | pub fn func() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Color` is never constructed
[INFO] [stdout]  --> structs/src/tuple_structs.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | struct Color(i32, i32, i32);
[INFO] [stdout]   |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Position` is never constructed
[INFO] [stdout]  --> structs/src/tuple_structs.rs:9:8
[INFO] [stdout]   |
[INFO] [stdout] 9 | struct Position(i32, i32, i32);
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `func` is never used
[INFO] [stdout]   --> structs/src/tuple_structs.rs:11:4
[INFO] [stdout]    |
[INFO] [stdout] 11 | fn func() {
[INFO] [stdout]    |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling macros v0.1.0 (/opt/rustwide/workdir/macros)
[INFO] [stderr]    Compiling sandbox v0.1.0 (/opt/rustwide/workdir/sandbox)
[INFO] [stderr]    Compiling iterators v0.1.0 (/opt/rustwide/workdir/iterators)
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 19 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling types v0.1.0 (/opt/rustwide/workdir/types)
[INFO] [stderr]    Compiling traits v0.1.0 (/opt/rustwide/workdir/traits)
[INFO] [stderr]    Compiling ddd v0.1.0 (/opt/rustwide/workdir/ddd)
[INFO] [stderr]    Compiling persistence v0.1.0 (/opt/rustwide/workdir/persistence)
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]   --> traits/src/associated_types.rs:49:8
[INFO] [stdout]    |
[INFO] [stdout] 49 | pub fn main() {}
[INFO] [stdout]    |        ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `item` is never read
[INFO] [stdout]  --> traits/src/derive/debug.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | struct Struct {
[INFO] [stdout]   |        ------ field in this struct
[INFO] [stdout] 7 |     item: i32,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Struct` 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]   --> traits/src/derive/debug.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | impl Struct {
[INFO] [stdout]    | ----------- associated function in this implementation
[INFO] [stdout] 11 |     fn new() -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Item` is never constructed
[INFO] [stdout]   --> traits/src/derive/debug.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | enum Enum {
[INFO] [stdout]    |      ---- variant in this enum
[INFO] [stdout] 18 |     Item,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Enum` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]   --> traits/src/derive/debug.rs:21:8
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub fn main() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]  --> traits/src/derive/default.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub fn main() {}
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]   --> traits/src/derive/eq.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub fn main() {}
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]   --> traits/src/derive/ord.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub fn main() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> traits/src/derive/partial_eq.rs:15:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | impl Struct {
[INFO] [stdout]    | ----------- associated function in this implementation
[INFO] [stdout] 15 |     fn new() -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Item1` and `Item2` are never constructed
[INFO] [stdout]   --> traits/src/derive/partial_eq.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 21 | enum Enum {
[INFO] [stdout]    |      ---- variants in this enum
[INFO] [stdout] 22 |     Item1,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 23 |     Item2,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Enum` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]   --> traits/src/derive/partial_eq.rs:26:8
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub fn main() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Item1` and `Item2` are never constructed
[INFO] [stdout]   --> traits/src/derive/partial_ord.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 18 | enum Enum {
[INFO] [stdout]    |      ---- variants in this enum
[INFO] [stdout] 19 |     Item1,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 20 |     Item2,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]   --> traits/src/derive/partial_ord.rs:23:8
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub fn main() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `error_a` is never used
[INFO] [stdout]   --> traits/src/trait_object.rs:59:8
[INFO] [stdout]    |
[INFO] [stdout] 59 |     fn error_a() -> Result<(), ErrorA> {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `error_b` is never used
[INFO] [stdout]   --> traits/src/trait_object.rs:63:8
[INFO] [stdout]    |
[INFO] [stdout] 63 |     fn error_b() -> Result<(), ErrorB> {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `error_a_b` is never used
[INFO] [stdout]   --> traits/src/trait_object.rs:67:8
[INFO] [stdout]    |
[INFO] [stdout] 67 |     fn error_a_b() -> Result<(), Box<dyn Error>> {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling time v0.1.0 (/opt/rustwide/workdir/time)
[INFO] [stdout] warning: unused variable: `payload`
[INFO] [stdout]   --> persistence/src/arc_rwlock.rs:36:22
[INFO] [stdout]    |
[INFO] [stdout] 36 |     fn create(&self, payload: CreateTodo) -> Todo {
[INFO] [stdout]    |                      ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_payload`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `id`
[INFO] [stdout]   --> persistence/src/arc_rwlock.rs:40:19
[INFO] [stdout]    |
[INFO] [stdout] 40 |     fn get(&self, id: Id) -> Todo {
[INFO] [stdout]    |                   ^^ help: if this is intentional, prefix it with an underscore: `_id`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `id`
[INFO] [stdout]   --> persistence/src/arc_rwlock.rs:44:22
[INFO] [stdout]    |
[INFO] [stdout] 44 |     fn update(&self, id: Id, payload: UpdateTodo) -> Todo {
[INFO] [stdout]    |                      ^^ help: if this is intentional, prefix it with an underscore: `_id`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `payload`
[INFO] [stdout]   --> persistence/src/arc_rwlock.rs:44:30
[INFO] [stdout]    |
[INFO] [stdout] 44 |     fn update(&self, id: Id, payload: UpdateTodo) -> Todo {
[INFO] [stdout]    |                              ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_payload`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `id`
[INFO] [stdout]   --> persistence/src/arc_rwlock.rs:48:22
[INFO] [stdout]    |
[INFO] [stdout] 48 |     fn delete(&self, id: Id) {
[INFO] [stdout]    |                      ^^ help: if this is intentional, prefix it with an underscore: `_id`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]  --> persistence/src/arc_mutex.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn main() {}
[INFO] [stdout]   |    ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `read_todos_ref`, and `write_todos_ref` are never used
[INFO] [stdout]   --> persistence/src/arc_rwlock.rs:18:12
[INFO] [stdout]    |
[INFO] [stdout] 17 | impl TodoRepository {
[INFO] [stdout]    | ------------------- associated items in this implementation
[INFO] [stdout] 18 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 22 |     fn read_todos_ref(&self) -> RwLockReadGuard<Todos> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 26 |     fn write_todos_ref(&self) -> RwLockWriteGuard<Todos> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]  --> persistence/src/rc_refcell.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn main() {}
[INFO] [stdout]   |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `id` and `text` are never read
[INFO] [stdout]  --> persistence/src/todo.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct Todo {
[INFO] [stdout]   |            ---- fields in this struct
[INFO] [stdout] 6 |     id: Id,
[INFO] [stdout]   |     ^^
[INFO] [stdout] 7 |     text: Text,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> persistence/src/todo.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 10 | impl Todo {
[INFO] [stdout]    | --------- associated function in this implementation
[INFO] [stdout] 11 |     pub fn new(id: Id, text: Text) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `text` is never read
[INFO] [stdout]   --> persistence/src/todo.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub struct CreateTodo {
[INFO] [stdout]    |            ---------- field in this struct
[INFO] [stdout] 17 |     text: Text,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `text` is never read
[INFO] [stdout]   --> persistence/src/todo.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub struct UpdateTodo {
[INFO] [stdout]    |            ---------- field in this struct
[INFO] [stdout] 21 |     text: Text,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling enums v0.1.0 (/opt/rustwide/workdir/enums)
[INFO] [stderr]    Compiling closures v0.1.0 (/opt/rustwide/workdir/closures)
[INFO] [stderr]    Compiling tree v0.1.0 (/opt/rustwide/workdir/tree)
[INFO] [stdout] warning: 16 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 12 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.79s
[INFO] running `Command { std: "docker" "inspect" "90f1b85c7e44fbd2b6a21bb02a87be5081e76ce0c14a6c968a3f814a9c723803", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "90f1b85c7e44fbd2b6a21bb02a87be5081e76ce0c14a6c968a3f814a9c723803", kill_on_drop: false }`
[INFO] [stdout] 90f1b85c7e44fbd2b6a21bb02a87be5081e76ce0c14a6c968a3f814a9c723803
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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=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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 50577124c5ada694e1b5d97f24c4736397642180091e1493ccdab0acea7c2ba4
[INFO] running `Command { std: "docker" "start" "-a" "50577124c5ada694e1b5d97f24c4736397642180091e1493ccdab0acea7c2ba4", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `a`
[INFO] [stderr]   --> type_conversion/src/from_into.rs:20:9
[INFO] [stderr]    |
[INFO] [stderr] 20 |     let a = A::from(b);
[INFO] [stderr]    |         ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `b_vec`
[INFO] [stderr]   --> type_conversion/src/from_into.rs:25:9
[INFO] [stderr]    |
[INFO] [stderr] 25 |     let b_vec = a_vec.into_iter().map(|a| a.into()).collect::<Vec<B>>();
[INFO] [stderr]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_b_vec`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `a`
[INFO] [stderr]   --> type_conversion/src/from_into2.rs:14:9
[INFO] [stderr]    |
[INFO] [stderr] 14 |     let a: A = b.into();
[INFO] [stderr]    |         ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stderr] 
[INFO] [stderr] warning: function `main` is never used
[INFO] [stderr]   --> type_conversion/src/from_into.rs:17:4
[INFO] [stderr]    |
[INFO] [stderr] 17 | fn main() {
[INFO] [stderr]    |    ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function `vec` is never used
[INFO] [stderr]   --> type_conversion/src/from_into.rs:23:4
[INFO] [stderr]    |
[INFO] [stderr] 23 | fn vec() {
[INFO] [stderr]    |    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `main` is never used
[INFO] [stderr]   --> type_conversion/src/from_into2.rs:12:4
[INFO] [stderr]    |
[INFO] [stderr] 12 | fn main() {
[INFO] [stderr]    |    ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `main` is never used
[INFO] [stderr]   --> traits/src/associated_types.rs:49:8
[INFO] [stderr]    |
[INFO] [stderr] 49 | pub fn main() {}
[INFO] [stderr]    |        ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field `item` is never read
[INFO] [stderr]  --> traits/src/derive/debug.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | struct Struct {
[INFO] [stderr]   |        ------ field in this struct
[INFO] [stderr] 7 |     item: i32,
[INFO] [stderr]   |     ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `Struct` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: associated function `new` is never used
[INFO] [stderr]   --> traits/src/derive/debug.rs:11:8
[INFO] [stderr]    |
[INFO] [stderr] 10 | impl Struct {
[INFO] [stderr]    | ----------- associated function in this implementation
[INFO] [stderr] 11 |     fn new() -> Self {
[INFO] [stderr]    |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant `Item` is never constructed
[INFO] [stderr]   --> traits/src/derive/debug.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 17 | enum Enum {
[INFO] [stderr]    |      ---- variant in this enum
[INFO] [stderr] 18 |     Item,
[INFO] [stderr]    |     ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `Enum` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: function `main` is never used
[INFO] [stderr]   --> traits/src/derive/debug.rs:21:8
[INFO] [stderr]    |
[INFO] [stderr] 21 | pub fn main() {
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `main` is never used
[INFO] [stderr]  --> traits/src/derive/default.rs:8:8
[INFO] [stderr]   |
[INFO] [stderr] 8 | pub fn main() {}
[INFO] [stderr]   |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `main` is never used
[INFO] [stderr]   --> traits/src/derive/eq.rs:14:8
[INFO] [stderr]    |
[INFO] [stderr] 14 | pub fn main() {}
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `main` is never used
[INFO] [stderr]   --> traits/src/derive/ord.rs:14:8
[INFO] [stderr]    |
[INFO] [stderr] 14 | pub fn main() {
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function `new` is never used
[INFO] [stderr]   --> traits/src/derive/partial_eq.rs:15:8
[INFO] [stderr]    |
[INFO] [stderr] 14 | impl Struct {
[INFO] [stderr]    | ----------- associated function in this implementation
[INFO] [stderr] 15 |     fn new() -> Self {
[INFO] [stderr]    |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variants `Item1` and `Item2` are never constructed
[INFO] [stderr]   --> traits/src/derive/partial_eq.rs:22:5
[INFO] [stderr]    |
[INFO] [stderr] 21 | enum Enum {
[INFO] [stderr]    |      ---- variants in this enum
[INFO] [stderr] 22 |     Item1,
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr] 23 |     Item2,
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `Enum` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: function `main` is never used
[INFO] [stderr]   --> traits/src/derive/partial_eq.rs:26:8
[INFO] [stderr]    |
[INFO] [stderr] 26 | pub fn main() {
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variants `Item1` and `Item2` are never constructed
[INFO] [stderr]   --> traits/src/derive/partial_ord.rs:19:5
[INFO] [stderr]    |
[INFO] [stderr] 18 | enum Enum {
[INFO] [stderr]    |      ---- variants in this enum
[INFO] [stderr] 19 |     Item1,
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr] 20 |     Item2,
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `main` is never used
[INFO] [stderr]   --> traits/src/derive/partial_ord.rs:23:8
[INFO] [stderr]    |
[INFO] [stderr] 23 | pub fn main() {
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `error_a` is never used
[INFO] [stderr]   --> traits/src/trait_object.rs:59:8
[INFO] [stderr]    |
[INFO] [stderr] 59 |     fn error_a() -> Result<(), ErrorA> {
[INFO] [stderr]    |        ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `error_b` is never used
[INFO] [stderr]   --> traits/src/trait_object.rs:63:8
[INFO] [stderr]    |
[INFO] [stderr] 63 |     fn error_b() -> Result<(), ErrorB> {
[INFO] [stderr]    |        ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `error_a_b` is never used
[INFO] [stderr]   --> traits/src/trait_object.rs:67:8
[INFO] [stderr]    |
[INFO] [stderr] 67 |     fn error_a_b() -> Result<(), Box<dyn Error>> {
[INFO] [stderr]    |        ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `b`
[INFO] [stderr]   --> smart_pointers/src/rc_arc/rc.rs:34:9
[INFO] [stderr]    |
[INFO] [stderr] 34 |     let b = Cons(3, Rc::clone(&a));
[INFO] [stderr]    |         ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `c`
[INFO] [stderr]   --> smart_pointers/src/rc_arc/rc.rs:38:13
[INFO] [stderr]    |
[INFO] [stderr] 38 |         let c = Cons(4, Rc::clone(&a));
[INFO] [stderr]    |             ^ help: if this is intentional, prefix it with an underscore: `_c`
[INFO] [stderr] 
[INFO] [stderr] warning: function `fn1` is never used
[INFO] [stderr]   --> smart_pointers/src/box_.rs:14:4
[INFO] [stderr]    |
[INFO] [stderr] 14 | fn fn1() {
[INFO] [stderr]    |    ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: enum `List` is never used
[INFO] [stderr]   --> smart_pointers/src/box_.rs:19:6
[INFO] [stderr]    |
[INFO] [stderr] 19 | enum List<T> {
[INFO] [stderr]    |      ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `fn2` is never used
[INFO] [stderr]   --> smart_pointers/src/box_.rs:24:4
[INFO] [stderr]    |
[INFO] [stderr] 24 | fn fn2() {
[INFO] [stderr]    |    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `main` is never used
[INFO] [stderr]   --> smart_pointers/src/box_.rs:31:8
[INFO] [stderr]    |
[INFO] [stderr] 31 | pub fn main() {
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function `new` is never used
[INFO] [stderr]   --> smart_pointers/src/deref.rs:35:8
[INFO] [stderr]    |
[INFO] [stderr] 34 | impl<T> MyBox<T> {
[INFO] [stderr]    | ---------------- associated function in this implementation
[INFO] [stderr] 35 |     fn new(x: T) -> MyBox<T> {
[INFO] [stderr]    |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum `List` is never used
[INFO] [stderr]   --> smart_pointers/src/rc_arc/rc.rs:23:6
[INFO] [stderr]    |
[INFO] [stderr] 23 | enum List {
[INFO] [stderr]    |      ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `main` is never used
[INFO] [stderr]   --> smart_pointers/src/rc_arc/rc.rs:30:8
[INFO] [stderr]    |
[INFO] [stderr] 30 | pub fn main() {
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `type_conversion` (lib) generated 6 warnings (run `cargo fix --lib -p type_conversion` to apply 3 suggestions)
[INFO] [stderr] warning: `traits` (lib) generated 16 warnings
[INFO] [stderr] warning: `smart_pointers` (lib) generated 9 warnings (run `cargo fix --lib -p smart_pointers` to apply 2 suggestions)
[INFO] [stderr] warning: unused variable: `square`
[INFO] [stderr]   --> structs/src/structs.rs:39:13
[INFO] [stderr]    |
[INFO] [stderr] 39 |         let square = Rectangle::square(1);
[INFO] [stderr]    |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_square`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `black`
[INFO] [stderr]   --> structs/src/tuple_structs.rs:12:13
[INFO] [stderr]    |
[INFO] [stderr] 12 |     let mut black = Color(0, 0, 0);
[INFO] [stderr]    |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_black`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> structs/src/tuple_structs.rs:12:9
[INFO] [stderr]    |
[INFO] [stderr] 12 |     let mut black = Color(0, 0, 0);
[INFO] [stderr]    |         ----^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Rectangle` is never constructed
[INFO] [stderr]  --> structs/src/structs.rs:5:8
[INFO] [stderr]   |
[INFO] [stderr] 5 | struct Rectangle {
[INFO] [stderr]   |        ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated items `area` and `square` are never used
[INFO] [stderr]   --> structs/src/structs.rs:14:8
[INFO] [stderr]    |
[INFO] [stderr] 10 | impl Rectangle {
[INFO] [stderr]    | -------------- associated items in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 14 |     fn area(&self) -> u32 {
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] ...
[INFO] [stderr] 20 |     fn square(size: u32) -> Rectangle {
[INFO] [stderr]    |        ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `func` is never used
[INFO] [stderr]   --> structs/src/structs.rs:28:8
[INFO] [stderr]    |
[INFO] [stderr] 28 | pub fn func() {
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Color` is never constructed
[INFO] [stderr]  --> structs/src/tuple_structs.rs:7:8
[INFO] [stderr]   |
[INFO] [stderr] 7 | struct Color(i32, i32, i32);
[INFO] [stderr]   |        ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Position` is never constructed
[INFO] [stderr]  --> structs/src/tuple_structs.rs:9:8
[INFO] [stderr]   |
[INFO] [stderr] 9 | struct Position(i32, i32, i32);
[INFO] [stderr]   |        ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `func` is never used
[INFO] [stderr]   --> structs/src/tuple_structs.rs:11:4
[INFO] [stderr]    |
[INFO] [stderr] 11 | fn func() {
[INFO] [stderr]    |    ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `structs` (lib) generated 9 warnings (run `cargo fix --lib -p structs` to apply 3 suggestions)
[INFO] [stderr] warning: unused variable: `some_v`
[INFO] [stderr]   --> error_handling/src/main.rs:47:9
[INFO] [stderr]    |
[INFO] [stderr] 47 |     let some_v = div(2, 2).ok();
[INFO] [stderr]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_some_v`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `some_e`
[INFO] [stderr]   --> error_handling/src/main.rs:48:9
[INFO] [stderr]    |
[INFO] [stderr] 48 |     let some_e = div(2, 0).err();
[INFO] [stderr]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_some_e`
[INFO] [stderr] 
[INFO] [stderr] warning: function `display_result` is never used
[INFO] [stderr]   --> error_handling/src/main.rs:22:4
[INFO] [stderr]    |
[INFO] [stderr] 22 | fn display_result<T: std::fmt::Display, E: std::fmt::Display>(result: Result<T, E>) {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function `multiple_error` is never used
[INFO] [stderr]   --> error_handling/src/error_propagation.rs:23:4
[INFO] [stderr]    |
[INFO] [stderr] 23 | fn multiple_error(s: &str) -> Result<i32, Box<dyn std::error::Error>> {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `remove_attributes` is never used
[INFO] [stderr]  --> rusoto/src/main.rs:5:10
[INFO] [stderr]   |
[INFO] [stderr] 5 | async fn remove_attributes(table_name: &str, attribute_names: Vec<&str>) -> anyhow::Result<()> {
[INFO] [stderr]   |          ^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `error_handling` (bin "error_handling" test) generated 4 warnings (run `cargo fix --bin "error_handling" --tests` to apply 2 suggestions)
[INFO] [stderr] warning: `rusoto` (bin "rusoto" test) generated 1 warning
[INFO] [stderr] warning: function `greet` is never used
[INFO] [stderr]  --> tests/src/message.rs:1:4
[INFO] [stderr]   |
[INFO] [stderr] 1 | fn greet(name: &str) -> String {
[INFO] [stderr]   |    ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function `add` is never used
[INFO] [stderr]  --> tests/src/unit_tests.rs:9:4
[INFO] [stderr]   |
[INFO] [stderr] 9 | fn add(left: i32, right: i32) -> i32 {
[INFO] [stderr]   |    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `tests` (bin "tests") generated 2 warnings
[INFO] [stderr] warning: `type_conversion` (lib test) generated 6 warnings (6 duplicates)
[INFO] [stderr] warning: unused variable: `payload`
[INFO] [stderr]   --> persistence/src/arc_rwlock.rs:36:22
[INFO] [stderr]    |
[INFO] [stderr] 36 |     fn create(&self, payload: CreateTodo) -> Todo {
[INFO] [stderr]    |                      ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_payload`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `id`
[INFO] [stderr]   --> persistence/src/arc_rwlock.rs:40:19
[INFO] [stderr]    |
[INFO] [stderr] 40 |     fn get(&self, id: Id) -> Todo {
[INFO] [stderr]    |                   ^^ help: if this is intentional, prefix it with an underscore: `_id`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `id`
[INFO] [stderr]   --> persistence/src/arc_rwlock.rs:44:22
[INFO] [stderr]    |
[INFO] [stderr] 44 |     fn update(&self, id: Id, payload: UpdateTodo) -> Todo {
[INFO] [stderr]    |                      ^^ help: if this is intentional, prefix it with an underscore: `_id`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `payload`
[INFO] [stderr]   --> persistence/src/arc_rwlock.rs:44:30
[INFO] [stderr]    |
[INFO] [stderr] 44 |     fn update(&self, id: Id, payload: UpdateTodo) -> Todo {
[INFO] [stderr]    |                              ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_payload`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `id`
[INFO] [stderr]   --> persistence/src/arc_rwlock.rs:48:22
[INFO] [stderr]    |
[INFO] [stderr] 48 |     fn delete(&self, id: Id) {
[INFO] [stderr]    |                      ^^ help: if this is intentional, prefix it with an underscore: `_id`
[INFO] [stderr] 
[INFO] [stderr] warning: function `main` is never used
[INFO] [stderr]  --> persistence/src/arc_mutex.rs:1:4
[INFO] [stderr]   |
[INFO] [stderr] 1 | fn main() {}
[INFO] [stderr]   |    ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated items `new`, `read_todos_ref`, and `write_todos_ref` are never used
[INFO] [stderr]   --> persistence/src/arc_rwlock.rs:18:12
[INFO] [stderr]    |
[INFO] [stderr] 17 | impl TodoRepository {
[INFO] [stderr]    | ------------------- associated items in this implementation
[INFO] [stderr] 18 |     pub fn new() -> Self {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] ...
[INFO] [stderr] 22 |     fn read_todos_ref(&self) -> RwLockReadGuard<Todos> {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 26 |     fn write_todos_ref(&self) -> RwLockWriteGuard<Todos> {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `main` is never used
[INFO] [stderr]  --> persistence/src/rc_refcell.rs:1:4
[INFO] [stderr]   |
[INFO] [stderr] 1 | fn main() {}
[INFO] [stderr]   |    ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: fields `id` and `text` are never read
[INFO] [stderr]  --> persistence/src/todo.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub struct Todo {
[INFO] [stderr]   |            ---- fields in this struct
[INFO] [stderr] 6 |     id: Id,
[INFO] [stderr]   |     ^^
[INFO] [stderr] 7 |     text: Text,
[INFO] [stderr]   |     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function `new` is never used
[INFO] [stderr]   --> persistence/src/todo.rs:11:12
[INFO] [stderr]    |
[INFO] [stderr] 10 | impl Todo {
[INFO] [stderr]    | --------- associated function in this implementation
[INFO] [stderr] 11 |     pub fn new(id: Id, text: Text) -> Self {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field `text` is never read
[INFO] [stderr]   --> persistence/src/todo.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 16 | pub struct CreateTodo {
[INFO] [stderr]    |            ---------- field in this struct
[INFO] [stderr] 17 |     text: Text,
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field `text` is never read
[INFO] [stderr]   --> persistence/src/todo.rs:21:5
[INFO] [stderr]    |
[INFO] [stderr] 20 | pub struct UpdateTodo {
[INFO] [stderr]    |            ---------- field in this struct
[INFO] [stderr] 21 |     text: Text,
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `persistence` (bin "persistence" test) generated 12 warnings (run `cargo fix --bin "persistence" --tests` to apply 5 suggestions)
[INFO] [stderr] warning: `traits` (lib test) generated 16 warnings (16 duplicates)
[INFO] [stderr] warning: struct `Foo` is never constructed
[INFO] [stderr]  --> attributes/src/cfg_attr.rs:2:8
[INFO] [stderr]   |
[INFO] [stderr] 2 | struct Foo {}
[INFO] [stderr]   |        ^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> smart_pointers/src/deref.rs:81:13
[INFO] [stderr]    |
[INFO] [stderr] 81 |         let mut name = MyBox::new("name".to_string());
[INFO] [stderr]    |             ----^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `attributes` (bin "attributes" test) generated 1 warning
[INFO] [stderr] warning: `structs` (lib test) generated 9 warnings (9 duplicates)
[INFO] [stderr] warning: `smart_pointers` (lib test) generated 9 warnings (8 duplicates) (run `cargo fix --lib -p smart_pointers --tests` to apply 1 suggestion)
[INFO] [stderr] warning: variable `a` is assigned to, but never used
[INFO] [stderr]   --> ownership/src/lifetimes.rs:49:13
[INFO] [stderr]    |
[INFO] [stderr] 49 |         let a;
[INFO] [stderr]    |             ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: consider using `_a` instead
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `a` is never read
[INFO] [stderr]   --> ownership/src/lifetimes.rs:52:13
[INFO] [stderr]    |
[INFO] [stderr] 52 |             a = &b;
[INFO] [stderr]    |             ^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable `result` is assigned to, but never used
[INFO] [stderr]   --> ownership/src/lifetimes.rs:79:13
[INFO] [stderr]    |
[INFO] [stderr] 79 |         let result;
[INFO] [stderr]    |             ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: consider using `_result` instead
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `result` is never read
[INFO] [stderr]   --> ownership/src/lifetimes.rs:84:13
[INFO] [stderr]    |
[INFO] [stderr] 84 |             result = f(&s1, &s2);
[INFO] [stderr]    |             ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]   --> ownership/src/lifetimes.rs:75:18
[INFO] [stderr]    |
[INFO] [stderr] 75 |         fn f<'a>(x: &'a str, y: &'a str) -> &'a str {
[INFO] [stderr]    |                  ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `y`
[INFO] [stderr]   --> ownership/src/lifetimes.rs:75:30
[INFO] [stderr]    |
[INFO] [stderr] 75 |         fn f<'a>(x: &'a str, y: &'a str) -> &'a str {
[INFO] [stderr]    |                              ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]   --> ownership/src/lifetimes.rs:92:22
[INFO] [stderr]    |
[INFO] [stderr] 92 |         fn f<'a, 'b>(x: &'a str, y: &'b str) -> &'a str {
[INFO] [stderr]    |                      ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `y`
[INFO] [stderr]   --> ownership/src/lifetimes.rs:92:34
[INFO] [stderr]    |
[INFO] [stderr] 92 |         fn f<'a, 'b>(x: &'a str, y: &'b str) -> &'a str {
[INFO] [stderr]    |                                  ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `s`
[INFO] [stderr]    --> ownership/src/lifetimes.rs:121:26
[INFO] [stderr]     |
[INFO] [stderr] 121 |         fn method(&self, s: &str) -> &str {
[INFO] [stderr]     |                          ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `b`
[INFO] [stderr]   --> ownership/src/references.rs:29:13
[INFO] [stderr]    |
[INFO] [stderr] 29 |         let b = &mut a;
[INFO] [stderr]    |             ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `a` is never read
[INFO] [stderr]   --> ownership/src/references.rs:30:9
[INFO] [stderr]    |
[INFO] [stderr] 30 |         a = 1;
[INFO] [stderr]    |         ^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `b`
[INFO] [stderr]   --> ownership/src/references.rs:38:13
[INFO] [stderr]    |
[INFO] [stderr] 38 |         let b = &mut a;
[INFO] [stderr]    |             ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `b`
[INFO] [stderr]   --> ownership/src/references.rs:50:13
[INFO] [stderr]    |
[INFO] [stderr] 50 |         let b = &mut a;
[INFO] [stderr]    |             ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `c`
[INFO] [stderr]   --> ownership/src/references.rs:91:13
[INFO] [stderr]    |
[INFO] [stderr] 91 |         let c = &mut b;
[INFO] [stderr]    |             ^ help: if this is intentional, prefix it with an underscore: `_c`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `c`
[INFO] [stderr]    --> ownership/src/references.rs:102:13
[INFO] [stderr]     |
[INFO] [stderr] 102 |         let c = &mut b;
[INFO] [stderr]     |             ^ help: if this is intentional, prefix it with an underscore: `_c`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `c`
[INFO] [stderr]    --> ownership/src/references.rs:125:13
[INFO] [stderr]     |
[INFO] [stderr] 125 |         let c = b;
[INFO] [stderr]     |             ^ help: if this is intentional, prefix it with an underscore: `_c`
[INFO] [stderr] 
[INFO] [stderr] warning: function `only_one_arg` is never used
[INFO] [stderr]    --> ownership/src/lifetimes.rs:108:8
[INFO] [stderr]     |
[INFO] [stderr] 108 |     fn only_one_arg(s: &str) -> &str {
[INFO] [stderr]     |        ^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct `S` is never constructed
[INFO] [stderr]    --> ownership/src/lifetimes.rs:115:12
[INFO] [stderr]     |
[INFO] [stderr] 115 |     struct S<'a> {
[INFO] [stderr]     |            ^
[INFO] [stderr] 
[INFO] [stderr] warning: methods `method` and `method2` are never used
[INFO] [stderr]    --> ownership/src/lifetimes.rs:121:12
[INFO] [stderr]     |
[INFO] [stderr] 119 |     impl<'a> S<'a> {
[INFO] [stderr]     |     -------------- methods in this implementation
[INFO] [stderr] 120 |         // ライフタイム注釈を省略した場合、selfのライフタイムが出力ライフタイム引数に代入される
[INFO] [stderr] 121 |         fn method(&self, s: &str) -> &str {
[INFO] [stderr]     |            ^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 126 |         fn method2<'b>(&self, s: &'b str) -> &'b str {
[INFO] [stderr]     |            ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `ownership` (lib test) generated 19 warnings (run `cargo fix --lib -p ownership --tests` to apply 11 suggestions)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.14s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/attributes-8285771f2294b2e9)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/aws_sdk-bbb5e98fe3f31e8b)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/aws_sdk-9e5a7a0bda483508)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/cargo-0956c1e0671b2c6d)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/cli-2c653a37077a3e93)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/closures-a4d8687f84ac41c6)
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test recursive::tests::five_120 ... ok
[INFO] [stdout] test recursive::tests::one_1 ... ok
[INFO] [stdout] test recursive::tests::three_6 ... ok
[INFO] [stdout] test recursive::tests::four_24 ... ok
[INFO] [stdout] test recursive::tests::two_2 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/collections-6102cff69f2bf549)
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test set::hash_set::tests::main ... ok
[INFO] [stdout] test set::hash_set::tests::intersection ... ok
[INFO] [stdout] test set::b_tree_set::tests::main ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/concurrency-b02e0d8593d783d9)
[INFO] [stdout] 
[INFO] [stdout] running 10 tests
[INFO] [stdout] test channel_sandbox::tests::main_send_thread_receive ... ok
[INFO] [stdout] test channel_sandbox::tests::thread_receive_main_send ... ok
[INFO] [stdout] test channel::tests::single ... ok
[INFO] [stdout] test channel_sandbox::tests::thread_send_main_receive ... ok
[INFO] [stdout] test mutual_exclusion::mutex::sample ... ok
[INFO] [stdout] test spawn_join::tests::spawn ... ok
[INFO] [stdout] test spawn_join::tests::spawn_join ... ok
[INFO] [stdout] test channel::tests::clone_tx ... ok
[INFO] [stdout] test channel::tests::multiple ... ok
[INFO] [stdout] test channel_sandbox::tests::main_receive_thread_send has been running for over 60 seconds
[ERROR] error running command: no output for 300 seconds
[INFO] running `Command { std: "docker" "inspect" "50577124c5ada694e1b5d97f24c4736397642180091e1493ccdab0acea7c2ba4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "50577124c5ada694e1b5d97f24c4736397642180091e1493ccdab0acea7c2ba4", kill_on_drop: false }`
[INFO] [stdout] 50577124c5ada694e1b5d97f24c4736397642180091e1493ccdab0acea7c2ba4
[INFO] testing emgniddikur/rust_sandbox against beta-2023-12-22 for beta-1.76-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Femgniddikur%2Frust_sandbox" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/emgniddikur/rust_sandbox on toolchain beta-2023-12-22
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-12-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-0-tc2/source/rust-toolchain
[INFO] started tweaking git repo https://github.com/emgniddikur/rust_sandbox
[INFO] finished tweaking git repo https://github.com/emgniddikur/rust_sandbox
[INFO] tweaked toml for git repo https://github.com/emgniddikur/rust_sandbox written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/emgniddikur/rust_sandbox 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-2023-12-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-12-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a7b9b5c419dd49f2118fc073b297c4eb7ec8a4a5bd0dfb68d4e006215cc49246
[INFO] running `Command { std: "docker" "start" "-a" "a7b9b5c419dd49f2118fc073b297c4eb7ec8a4a5bd0dfb68d4e006215cc49246", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a7b9b5c419dd49f2118fc073b297c4eb7ec8a4a5bd0dfb68d4e006215cc49246", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a7b9b5c419dd49f2118fc073b297c4eb7ec8a4a5bd0dfb68d4e006215cc49246", kill_on_drop: false }`
[INFO] [stdout] a7b9b5c419dd49f2118fc073b297c4eb7ec8a4a5bd0dfb68d4e006215cc49246
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-12-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d4635bd3380a52ae85dffb34fb4fa0bc28e33365bbe5b67e770e3343531ac323
[INFO] running `Command { std: "docker" "start" "-a" "d4635bd3380a52ae85dffb34fb4fa0bc28e33365bbe5b67e770e3343531ac323", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.56
[INFO] [stderr]    Compiling quote v1.0.26
[INFO] [stderr]    Compiling unicode-ident v1.0.5
[INFO] [stderr]    Compiling libc v0.2.141
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling syn v1.0.107
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling once_cell v1.15.0
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling futures-core v0.3.25
[INFO] [stderr]    Compiling smallvec v1.10.0
[INFO] [stderr]    Compiling pin-project-lite v0.2.9
[INFO] [stderr]    Compiling lock_api v0.4.9
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling futures-sink v0.3.25
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling cc v1.0.78
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[INFO] [stderr]    Compiling adler v1.0.2
[INFO] [stderr]    Compiling openssl v0.10.50
[INFO] [stderr]    Compiling foreign-types v0.3.2
[INFO] [stderr]    Compiling openssl-macros v0.1.1
[INFO] [stderr]    Compiling digest v0.9.0
[INFO] [stderr]    Compiling async-trait v0.1.68
[INFO] [stderr]    Compiling tokio-util v0.7.4
[INFO] [stderr]    Compiling tokio-rustls v0.23.4
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[INFO] [stderr]    Compiling native-tls v0.2.11
[INFO] [stderr]    Compiling futures-executor v0.3.25
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[INFO] [stderr]    Compiling block-buffer v0.9.0
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[INFO] [stderr]    Compiling rayon v1.5.3
[INFO] [stderr]    Compiling opaque-debug v0.3.0
[INFO] [stderr]    Compiling iana-time-zone v0.1.56
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[INFO] [stderr]    Compiling futures v0.3.25
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[INFO] [stderr]    Compiling crypto-mac v0.11.1
[INFO] [stderr]    Compiling getrandom v0.2.8
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling urlencoding v2.1.2
[INFO] [stderr]    Compiling chrono v0.4.24
[INFO] [stderr]    Compiling shlex v1.1.0
[INFO] [stderr]    Compiling xmlparser v0.13.5
[INFO] [stderr]    Compiling aws-smithy-query v0.52.0
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[INFO] [stderr]    Compiling hmac v0.11.0
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[INFO] [stderr]    Compiling tokio-native-tls v0.3.1
[INFO] [stderr]    Compiling flate2 v1.0.24
[INFO] [stderr]    Compiling sha2 v0.9.9
[INFO] [stderr]    Compiling md-5 v0.9.1
[INFO] [stderr]    Compiling hyper v0.14.23
[INFO] [stderr]    Compiling miniz_oxide v0.6.2
[INFO] [stderr]    Compiling rusoto_core v0.48.0
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling spin v0.9.4
[INFO] [stderr]    Compiling num-rational v0.4.1
[INFO] [stderr]    Compiling termcolor v1.1.3
[INFO] [stderr]    Compiling weezl v0.1.7
[INFO] [stderr]    Compiling flume v0.10.14
[INFO] [stderr]    Compiling threadpool v1.8.1
[INFO] [stderr]    Compiling lebe v0.5.2
[INFO] [stderr]    Compiling anyhow v1.0.70
[INFO] [stderr]    Compiling heck v0.4.0
[INFO] [stderr]    Compiling overload v0.1.1
[INFO] [stderr]    Compiling color_quant v1.1.0
[INFO] [stderr]    Compiling half v2.1.0
[INFO] [stderr]    Compiling thiserror v1.0.37
[INFO] [stderr]    Compiling bit_field v0.10.1
[INFO] [stderr]    Compiling os_str_bytes v6.3.0
[INFO] [stderr]    Compiling xml-rs v0.8.4
[INFO] [stderr]    Compiling exr v1.5.2
[INFO] [stderr]    Compiling clap_lex v0.2.4
[INFO] [stderr]    Compiling jpeg-decoder v0.2.6
[INFO] [stderr]    Compiling clap_derive v3.2.18
[INFO] [stderr]    Compiling gif v0.11.4
[INFO] [stderr]    Compiling nu-ansi-term v0.46.0
[INFO] [stderr]    Compiling tiff v0.7.4
[INFO] [stderr]    Compiling png v0.17.7
[INFO] [stderr]    Compiling thiserror-impl v1.0.37
[INFO] [stderr]    Compiling aws-smithy-http v0.52.0
[INFO] [stderr]    Compiling hyper-rustls v0.23.2
[INFO] [stderr]    Compiling rusoto_credential v0.48.0
[INFO] [stderr]    Compiling hyper-tls v0.5.0
[INFO] [stderr]    Compiling tracing-log v0.1.3
[INFO] [stderr]    Compiling aws-smithy-http-tower v0.52.0
[INFO] [stderr]    Compiling aws-sigv4 v0.52.0
[INFO] [stderr]    Compiling aws-smithy-client v0.52.0
[INFO] [stderr]    Compiling sharded-slab v0.1.4
[INFO] [stderr]    Compiling thread_local v1.1.4
[INFO] [stderr]    Compiling bytemuck v1.12.3
[INFO] [stderr]    Compiling rusoto_signature v0.48.0
[INFO] [stderr]    Compiling byteorder v1.4.3
[INFO] [stderr]    Compiling humantime v2.1.0
[INFO] [stderr]    Compiling unicode-segmentation v1.10.0
[INFO] [stderr]    Compiling aws-sig-auth v0.52.0
[INFO] [stderr]    Compiling aws-endpoint v0.52.0
[INFO] [stderr]    Compiling aws-http v0.52.0
[INFO] [stderr]    Compiling textwrap v0.15.1
[INFO] [stderr]    Compiling dotenv v0.15.0
[INFO] [stderr]    Compiling aws-sdk-sso v0.22.0
[INFO] [stderr]    Compiling aws-sdk-sts v0.22.0
[INFO] [stderr]    Compiling aws-sdk-dynamodb v0.22.0
[INFO] [stderr]    Compiling strsim v0.10.0
[INFO] [stderr]    Compiling scoped_threadpool v0.1.9
[INFO] [stderr]    Compiling tracing-subscriber v0.3.16
[INFO] [stderr]    Compiling clap v3.2.22
[INFO] [stderr]    Compiling aws-config v0.52.0
[INFO] [stderr]    Compiling image v0.24.4
[INFO] [stderr]    Compiling rusoto_dynamodb v0.48.0
[INFO] [stderr]    Compiling env_logger v0.9.1
[INFO] [stderr]    Compiling tests v0.1.0 (/opt/rustwide/workdir/tests)
[INFO] [stdout] warning: function `greet` is never used
[INFO] [stdout]  --> tests/src/message.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn greet(name: &str) -> String {
[INFO] [stdout]   |    ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `add` is never used
[INFO] [stdout]  --> tests/src/unit_tests.rs:9:4
[INFO] [stdout]   |
[INFO] [stdout] 9 | fn add(left: i32, right: i32) -> i32 {
[INFO] [stdout]   |    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling error_handling v0.1.0 (/opt/rustwide/workdir/error_handling)
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling logs v0.1.0 (/opt/rustwide/workdir/logs)
[INFO] [stdout] warning: unused variable: `some_v`
[INFO] [stdout]   --> error_handling/src/main.rs:47:9
[INFO] [stdout]    |
[INFO] [stdout] 47 |     let some_v = div(2, 2).ok();
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_some_v`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `some_e`
[INFO] [stdout]   --> error_handling/src/main.rs:48:9
[INFO] [stdout]    |
[INFO] [stdout] 48 |     let some_e = div(2, 0).err();
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_some_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `display_result` is never used
[INFO] [stdout]   --> error_handling/src/main.rs:22:4
[INFO] [stdout]    |
[INFO] [stdout] 22 | fn display_result<T: std::fmt::Display, E: std::fmt::Display>(result: Result<T, E>) {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `multiple_error` is never used
[INFO] [stdout]   --> error_handling/src/error_propagation.rs:23:4
[INFO] [stdout]    |
[INFO] [stdout] 23 | fn multiple_error(s: &str) -> Result<i32, Box<dyn std::error::Error>> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling validation v0.1.0 (/opt/rustwide/workdir/validation)
[INFO] [stdout] warning: function `len` is never used
[INFO] [stdout]  --> validation/src/validation.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 |     fn len(val: &str) -> usize {
[INFO] [stdout]   |        ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `min` is never used
[INFO] [stdout]  --> validation/src/validation.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 |     pub fn min(val: &str, min_len: usize) -> bool {
[INFO] [stdout]   |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `max` is never used
[INFO] [stdout]   --> validation/src/validation.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 12 |     pub fn max(val: &str, max_len: usize) -> bool {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling string v0.1.0 (/opt/rustwide/workdir/string)
[INFO] [stderr]    Compiling serde_sandbox v0.1.0 (/opt/rustwide/workdir/serde_sandbox)
[INFO] [stderr]    Compiling type_conversion v0.1.0 (/opt/rustwide/workdir/type_conversion)
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]   --> type_conversion/src/from_into.rs:20:9
[INFO] [stdout]    |
[INFO] [stdout] 20 |     let a = A::from(b);
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `b_vec`
[INFO] [stdout]   --> type_conversion/src/from_into.rs:25:9
[INFO] [stdout]    |
[INFO] [stdout] 25 |     let b_vec = a_vec.into_iter().map(|a| a.into()).collect::<Vec<B>>();
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_b_vec`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]   --> type_conversion/src/from_into2.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 14 |     let a: A = b.into();
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]   --> type_conversion/src/from_into.rs:17:4
[INFO] [stdout]    |
[INFO] [stdout] 17 | fn main() {
[INFO] [stdout]    |    ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `vec` is never used
[INFO] [stdout]   --> type_conversion/src/from_into.rs:23:4
[INFO] [stdout]    |
[INFO] [stdout] 23 | fn vec() {
[INFO] [stdout]    |    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]   --> type_conversion/src/from_into2.rs:12:4
[INFO] [stdout]    |
[INFO] [stdout] 12 | fn main() {
[INFO] [stdout]    |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling iterators v0.1.0 (/opt/rustwide/workdir/iterators)
[INFO] [stdout] warning: variants `Node` and `Nil` are never constructed
[INFO] [stdout]  --> iterators/src/list.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | enum List<T> {
[INFO] [stdout]   |      ---- variants in this enum
[INFO] [stdout] 3 |     Node { data: T, next: Box<List<T>> },
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 4 |     Nil,
[INFO] [stdout]   |     ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `List` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `cons`, and `iter` are never used
[INFO] [stdout]   --> iterators/src/list.rs:8:8
[INFO] [stdout]    |
[INFO] [stdout] 7  | impl<T> List<T> {
[INFO] [stdout]    | --------------- associated items in this implementation
[INFO] [stdout] 8  |     fn new() -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 12 |     fn cons(self, data: T) -> Self {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 19 |     fn iter(&self) -> ListIter<T> {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling image v0.1.0 (/opt/rustwide/workdir/image)
[INFO] [stderr]    Compiling env v0.1.0 (/opt/rustwide/workdir/env)
[INFO] [stderr]    Compiling types v0.1.0 (/opt/rustwide/workdir/types)
[INFO] [stderr]    Compiling structs v0.1.0 (/opt/rustwide/workdir/structs)
[INFO] [stdout] warning: unused variable: `square`
[INFO] [stdout]   --> structs/src/structs.rs:39:13
[INFO] [stdout]    |
[INFO] [stdout] 39 |         let square = Rectangle::square(1);
[INFO] [stdout]    |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_square`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `black`
[INFO] [stdout]   --> structs/src/tuple_structs.rs:12:13
[INFO] [stdout]    |
[INFO] [stdout] 12 |     let mut black = Color(0, 0, 0);
[INFO] [stdout]    |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_black`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> structs/src/tuple_structs.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout] 12 |     let mut black = Color(0, 0, 0);
[INFO] [stdout]    |         ----^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Rectangle` is never constructed
[INFO] [stdout]  --> structs/src/structs.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct Rectangle {
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `area` and `square` are never used
[INFO] [stdout]   --> structs/src/structs.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | impl Rectangle {
[INFO] [stdout]    | -------------- associated items in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 14 |     fn area(&self) -> u32 {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 20 |     fn square(size: u32) -> Rectangle {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `func` is never used
[INFO] [stdout]   --> structs/src/structs.rs:28:8
[INFO] [stdout]    |
[INFO] [stdout] 28 | pub fn func() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Color` is never constructed
[INFO] [stdout]  --> structs/src/tuple_structs.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | struct Color(i32, i32, i32);
[INFO] [stdout]   |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Position` is never constructed
[INFO] [stdout]  --> structs/src/tuple_structs.rs:9:8
[INFO] [stdout]   |
[INFO] [stdout] 9 | struct Position(i32, i32, i32);
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `func` is never used
[INFO] [stdout]   --> structs/src/tuple_structs.rs:11:4
[INFO] [stdout]    |
[INFO] [stdout] 11 | fn func() {
[INFO] [stdout]    |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling io v0.1.0 (/opt/rustwide/workdir/io)
[INFO] [stderr]    Compiling enums v0.1.0 (/opt/rustwide/workdir/enums)
[INFO] [stderr]    Compiling closures v0.1.0 (/opt/rustwide/workdir/closures)
[INFO] [stdout] warning: function `factorial` is never used
[INFO] [stdout]  --> closures/src/recursive.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn factorial(n: u32) -> u32 {
[INFO] [stdout]   |    ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling features v0.1.0 (/opt/rustwide/workdir/features)
[INFO] [stderr]    Compiling concurrency v0.1.0 (/opt/rustwide/workdir/concurrency)
[INFO] [stderr]    Compiling macros v0.1.0 (/opt/rustwide/workdir/macros)
[INFO] [stderr]    Compiling ownership v0.1.0 (/opt/rustwide/workdir/ownership)
[INFO] [stderr]    Compiling document v0.1.0 (/opt/rustwide/workdir/document)
[INFO] [stderr]    Compiling cargo v0.1.0 (/opt/rustwide/workdir/cargo)
[INFO] [stderr]    Compiling ddd v0.1.0 (/opt/rustwide/workdir/ddd)
[INFO] [stderr]    Compiling generics v0.1.0 (/opt/rustwide/workdir/generics)
[INFO] [stderr]    Compiling unit_testing v0.1.0 (/opt/rustwide/workdir/unit_testing)
[INFO] [stderr]    Compiling modules v0.1.0 (/opt/rustwide/workdir/modules)
[INFO] [stdout] warning: function `sum` is never used
[INFO] [stdout]  --> unit_testing/src/calculator.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn sum(first: i32, second: i32) -> i32 {
[INFO] [stdout]   |    ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling attributes v0.1.0 (/opt/rustwide/workdir/attributes)
[INFO] [stdout] warning: struct `Foo` is never constructed
[INFO] [stdout]  --> attributes/src/cfg_attr.rs:2:8
[INFO] [stdout]   |
[INFO] [stdout] 2 | struct Foo {}
[INFO] [stdout]   |        ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling sandbox v0.1.0 (/opt/rustwide/workdir/sandbox)
[INFO] [stderr]    Compiling time v0.1.0 (/opt/rustwide/workdir/time)
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling traits v0.1.0 (/opt/rustwide/workdir/traits)
[INFO] [stderr]    Compiling tree v0.1.0 (/opt/rustwide/workdir/tree)
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]   --> traits/src/associated_types.rs:49:8
[INFO] [stdout]    |
[INFO] [stdout] 49 | pub fn main() {}
[INFO] [stdout]    |        ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `item` is never read
[INFO] [stdout]  --> traits/src/derive/debug.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | struct Struct {
[INFO] [stdout]   |        ------ field in this struct
[INFO] [stdout] 7 |     item: i32,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Struct` 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]   --> traits/src/derive/debug.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | impl Struct {
[INFO] [stdout]    | ----------- associated function in this implementation
[INFO] [stdout] 11 |     fn new() -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Item` is never constructed
[INFO] [stdout]   --> traits/src/derive/debug.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | enum Enum {
[INFO] [stdout]    |      ---- variant in this enum
[INFO] [stdout] 18 |     Item,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Enum` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]   --> traits/src/derive/debug.rs:21:8
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub fn main() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]  --> traits/src/derive/default.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub fn main() {}
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]   --> traits/src/derive/eq.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub fn main() {}
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]   --> traits/src/derive/ord.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub fn main() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> traits/src/derive/partial_eq.rs:15:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | impl Struct {
[INFO] [stdout]    | ----------- associated function in this implementation
[INFO] [stdout] 15 |     fn new() -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Item1` and `Item2` are never constructed
[INFO] [stdout]   --> traits/src/derive/partial_eq.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 21 | enum Enum {
[INFO] [stdout]    |      ---- variants in this enum
[INFO] [stdout] 22 |     Item1,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 23 |     Item2,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Enum` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]   --> traits/src/derive/partial_eq.rs:26:8
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub fn main() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Item1` and `Item2` are never constructed
[INFO] [stdout]   --> traits/src/derive/partial_ord.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 18 | enum Enum {
[INFO] [stdout]    |      ---- variants in this enum
[INFO] [stdout] 19 |     Item1,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 20 |     Item2,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]   --> traits/src/derive/partial_ord.rs:23:8
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub fn main() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `error_a` is never used
[INFO] [stdout]   --> traits/src/trait_object.rs:59:8
[INFO] [stdout]    |
[INFO] [stdout] 59 |     fn error_a() -> Result<(), ErrorA> {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `error_b` is never used
[INFO] [stdout]   --> traits/src/trait_object.rs:63:8
[INFO] [stdout]    |
[INFO] [stdout] 63 |     fn error_b() -> Result<(), ErrorB> {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `error_a_b` is never used
[INFO] [stdout]   --> traits/src/trait_object.rs:67:8
[INFO] [stdout]    |
[INFO] [stdout] 67 |     fn error_a_b() -> Result<(), Box<dyn Error>> {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling smart_pointers v0.1.0 (/opt/rustwide/workdir/smart_pointers)
[INFO] [stdout] warning: 16 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling persistence v0.1.0 (/opt/rustwide/workdir/persistence)
[INFO] [stdout] warning: unused variable: `b`
[INFO] [stdout]   --> smart_pointers/src/rc_arc/rc.rs:34:9
[INFO] [stdout]    |
[INFO] [stdout] 34 |     let b = Cons(3, Rc::clone(&a));
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `c`
[INFO] [stdout]   --> smart_pointers/src/rc_arc/rc.rs:38:13
[INFO] [stdout]    |
[INFO] [stdout] 38 |         let c = Cons(4, Rc::clone(&a));
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_c`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `fn1` is never used
[INFO] [stdout]   --> smart_pointers/src/box_.rs:14:4
[INFO] [stdout]    |
[INFO] [stdout] 14 | fn fn1() {
[INFO] [stdout]    |    ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `List` is never used
[INFO] [stdout]   --> smart_pointers/src/box_.rs:19:6
[INFO] [stdout]    |
[INFO] [stdout] 19 | enum List<T> {
[INFO] [stdout]    |      ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `fn2` is never used
[INFO] [stdout]   --> smart_pointers/src/box_.rs:24:4
[INFO] [stdout]    |
[INFO] [stdout] 24 | fn fn2() {
[INFO] [stdout]    |    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]   --> smart_pointers/src/box_.rs:31:8
[INFO] [stdout]    |
[INFO] [stdout] 31 | pub fn main() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> smart_pointers/src/deref.rs:35:8
[INFO] [stdout]    |
[INFO] [stdout] 34 | impl<T> MyBox<T> {
[INFO] [stdout]    | ---------------- associated function in this implementation
[INFO] [stdout] 35 |     fn new(x: T) -> MyBox<T> {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `List` is never used
[INFO] [stdout]   --> smart_pointers/src/rc_arc/rc.rs:23:6
[INFO] [stdout]    |
[INFO] [stdout] 23 | enum List {
[INFO] [stdout]    |      ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]   --> smart_pointers/src/rc_arc/rc.rs:30:8
[INFO] [stdout]    |
[INFO] [stdout] 30 | pub fn main() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `payload`
[INFO] [stdout]   --> persistence/src/arc_rwlock.rs:36:22
[INFO] [stdout]    |
[INFO] [stdout] 36 |     fn create(&self, payload: CreateTodo) -> Todo {
[INFO] [stdout]    |                      ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_payload`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `id`
[INFO] [stdout]   --> persistence/src/arc_rwlock.rs:40:19
[INFO] [stdout]    |
[INFO] [stdout] 40 |     fn get(&self, id: Id) -> Todo {
[INFO] [stdout]    |                   ^^ help: if this is intentional, prefix it with an underscore: `_id`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `id`
[INFO] [stdout]   --> persistence/src/arc_rwlock.rs:44:22
[INFO] [stdout]    |
[INFO] [stdout] 44 |     fn update(&self, id: Id, payload: UpdateTodo) -> Todo {
[INFO] [stdout]    |                      ^^ help: if this is intentional, prefix it with an underscore: `_id`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `payload`
[INFO] [stdout]   --> persistence/src/arc_rwlock.rs:44:30
[INFO] [stdout]    |
[INFO] [stdout] 44 |     fn update(&self, id: Id, payload: UpdateTodo) -> Todo {
[INFO] [stdout]    |                              ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_payload`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `id`
[INFO] [stdout]   --> persistence/src/arc_rwlock.rs:48:22
[INFO] [stdout]    |
[INFO] [stdout] 48 |     fn delete(&self, id: Id) {
[INFO] [stdout]    |                      ^^ help: if this is intentional, prefix it with an underscore: `_id`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]  --> persistence/src/arc_mutex.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn main() {}
[INFO] [stdout]   |    ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `read_todos_ref`, and `write_todos_ref` are never used
[INFO] [stdout]   --> persistence/src/arc_rwlock.rs:18:12
[INFO] [stdout]    |
[INFO] [stdout] 17 | impl TodoRepository {
[INFO] [stdout]    | ------------------- associated items in this implementation
[INFO] [stdout] 18 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 22 |     fn read_todos_ref(&self) -> RwLockReadGuard<Todos> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 26 |     fn write_todos_ref(&self) -> RwLockWriteGuard<Todos> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]  --> persistence/src/rc_refcell.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn main() {}
[INFO] [stdout]   |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `id` and `text` are never read
[INFO] [stdout]  --> persistence/src/todo.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct Todo {
[INFO] [stdout]   |            ---- fields in this struct
[INFO] [stdout] 6 |     id: Id,
[INFO] [stdout]   |     ^^
[INFO] [stdout] 7 |     text: Text,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> persistence/src/todo.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 10 | impl Todo {
[INFO] [stdout]    | --------- associated function in this implementation
[INFO] [stdout] 11 |     pub fn new(id: Id, text: Text) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `text` is never read
[INFO] [stdout]   --> persistence/src/todo.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub struct CreateTodo {
[INFO] [stdout]    |            ---------- field in this struct
[INFO] [stdout] 17 |     text: Text,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `text` is never read
[INFO] [stdout]   --> persistence/src/todo.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub struct UpdateTodo {
[INFO] [stdout]    |            ---------- field in this struct
[INFO] [stdout] 21 |     text: Text,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling collections v0.1.0 (/opt/rustwide/workdir/collections)
[INFO] [stdout] warning: 12 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling cli v0.1.0 (/opt/rustwide/workdir/cli)
[INFO] [stderr]    Compiling aws-sdk v0.1.0 (/opt/rustwide/workdir/aws-sdk)
[INFO] [stderr]    Compiling rusoto v0.1.0 (/opt/rustwide/workdir/rusoto)
[INFO] [stdout] warning: function `remove_attributes` is never used
[INFO] [stdout]  --> rusoto/src/main.rs:5:10
[INFO] [stdout]   |
[INFO] [stdout] 5 | async fn remove_attributes(table_name: &str, attribute_names: Vec<&str>) -> anyhow::Result<()> {
[INFO] [stdout]   |          ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 19s
[INFO] running `Command { std: "docker" "inspect" "d4635bd3380a52ae85dffb34fb4fa0bc28e33365bbe5b67e770e3343531ac323", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d4635bd3380a52ae85dffb34fb4fa0bc28e33365bbe5b67e770e3343531ac323", kill_on_drop: false }`
[INFO] [stdout] d4635bd3380a52ae85dffb34fb4fa0bc28e33365bbe5b67e770e3343531ac323
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-12-22" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c93b4da633e9f5a7d33cc17a4bbcb7028e85a10667ef727732388852abbdd9ae
[INFO] running `Command { std: "docker" "start" "-a" "c93b4da633e9f5a7d33cc17a4bbcb7028e85a10667ef727732388852abbdd9ae", kill_on_drop: false }`
[INFO] [stderr]    Compiling diff v0.1.13
[INFO] [stderr]    Compiling yansi v0.5.1
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]   --> type_conversion/src/from_into.rs:20:9
[INFO] [stdout]    |
[INFO] [stdout] 20 |     let a = A::from(b);
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `b_vec`
[INFO] [stdout]   --> type_conversion/src/from_into.rs:25:9
[INFO] [stdout]    |
[INFO] [stdout] 25 |     let b_vec = a_vec.into_iter().map(|a| a.into()).collect::<Vec<B>>();
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_b_vec`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]   --> type_conversion/src/from_into2.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 14 |     let a: A = b.into();
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]   --> type_conversion/src/from_into.rs:17:4
[INFO] [stdout]    |
[INFO] [stdout] 17 | fn main() {
[INFO] [stdout]    |    ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `vec` is never used
[INFO] [stdout]   --> type_conversion/src/from_into.rs:23:4
[INFO] [stdout]    |
[INFO] [stdout] 23 | fn vec() {
[INFO] [stdout]    |    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]   --> type_conversion/src/from_into2.rs:12:4
[INFO] [stdout]    |
[INFO] [stdout] 12 | fn main() {
[INFO] [stdout]    |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]   --> traits/src/associated_types.rs:49:8
[INFO] [stdout]    |
[INFO] [stdout] 49 | pub fn main() {}
[INFO] [stdout]    |        ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `item` is never read
[INFO] [stdout]  --> traits/src/derive/debug.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | struct Struct {
[INFO] [stdout]   |        ------ field in this struct
[INFO] [stdout] 7 |     item: i32,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Struct` 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]   --> traits/src/derive/debug.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | impl Struct {
[INFO] [stdout]    | ----------- associated function in this implementation
[INFO] [stdout] 11 |     fn new() -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Item` is never constructed
[INFO] [stdout]   --> traits/src/derive/debug.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | enum Enum {
[INFO] [stdout]    |      ---- variant in this enum
[INFO] [stdout] 18 |     Item,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Enum` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]   --> traits/src/derive/debug.rs:21:8
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub fn main() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]  --> traits/src/derive/default.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub fn main() {}
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]   --> traits/src/derive/eq.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub fn main() {}
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]   --> traits/src/derive/ord.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub fn main() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> traits/src/derive/partial_eq.rs:15:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | impl Struct {
[INFO] [stdout]    | ----------- associated function in this implementation
[INFO] [stdout] 15 |     fn new() -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Item1` and `Item2` are never constructed
[INFO] [stdout]   --> traits/src/derive/partial_eq.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 21 | enum Enum {
[INFO] [stdout]    |      ---- variants in this enum
[INFO] [stdout] 22 |     Item1,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 23 |     Item2,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Enum` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]   --> traits/src/derive/partial_eq.rs:26:8
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub fn main() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Item1` and `Item2` are never constructed
[INFO] [stdout]   --> traits/src/derive/partial_ord.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 18 | enum Enum {
[INFO] [stdout]    |      ---- variants in this enum
[INFO] [stdout] 19 |     Item1,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 20 |     Item2,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]   --> traits/src/derive/partial_ord.rs:23:8
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub fn main() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `error_a` is never used
[INFO] [stdout]   --> traits/src/trait_object.rs:59:8
[INFO] [stdout]    |
[INFO] [stdout] 59 |     fn error_a() -> Result<(), ErrorA> {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `error_b` is never used
[INFO] [stdout]   --> traits/src/trait_object.rs:63:8
[INFO] [stdout]    |
[INFO] [stdout] 63 |     fn error_b() -> Result<(), ErrorB> {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `error_a_b` is never used
[INFO] [stdout]   --> traits/src/trait_object.rs:67:8
[INFO] [stdout]    |
[INFO] [stdout] 67 |     fn error_a_b() -> Result<(), Box<dyn Error>> {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 16 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `square`
[INFO] [stdout]   --> structs/src/structs.rs:39:13
[INFO] [stdout]    |
[INFO] [stdout] 39 |         let square = Rectangle::square(1);
[INFO] [stdout]    |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_square`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `black`
[INFO] [stdout]   --> structs/src/tuple_structs.rs:12:13
[INFO] [stdout]    |
[INFO] [stdout] 12 |     let mut black = Color(0, 0, 0);
[INFO] [stdout]    |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_black`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> structs/src/tuple_structs.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout] 12 |     let mut black = Color(0, 0, 0);
[INFO] [stdout]    |         ----^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Rectangle` is never constructed
[INFO] [stdout]  --> structs/src/structs.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct Rectangle {
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `area` and `square` are never used
[INFO] [stdout]   --> structs/src/structs.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | impl Rectangle {
[INFO] [stdout]    | -------------- associated items in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 14 |     fn area(&self) -> u32 {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 20 |     fn square(size: u32) -> Rectangle {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `func` is never used
[INFO] [stdout]   --> structs/src/structs.rs:28:8
[INFO] [stdout]    |
[INFO] [stdout] 28 | pub fn func() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Color` is never constructed
[INFO] [stdout]  --> structs/src/tuple_structs.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | struct Color(i32, i32, i32);
[INFO] [stdout]   |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Position` is never constructed
[INFO] [stdout]  --> structs/src/tuple_structs.rs:9:8
[INFO] [stdout]   |
[INFO] [stdout] 9 | struct Position(i32, i32, i32);
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `func` is never used
[INFO] [stdout]   --> structs/src/tuple_structs.rs:11:4
[INFO] [stdout]    |
[INFO] [stdout] 11 | fn func() {
[INFO] [stdout]    |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling rusoto v0.1.0 (/opt/rustwide/workdir/rusoto)
[INFO] [stdout] warning: unused variable: `b`
[INFO] [stdout]   --> smart_pointers/src/rc_arc/rc.rs:34:9
[INFO] [stdout]    |
[INFO] [stdout] 34 |     let b = Cons(3, Rc::clone(&a));
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling logs v0.1.0 (/opt/rustwide/workdir/logs)
[INFO] [stdout] warning: unused variable: `c`
[INFO] [stdout]   --> smart_pointers/src/rc_arc/rc.rs:38:13
[INFO] [stdout]    |
[INFO] [stdout] 38 |         let c = Cons(4, Rc::clone(&a));
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_c`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling string v0.1.0 (/opt/rustwide/workdir/string)
[INFO] [stdout] warning: function `fn1` is never used
[INFO] [stdout]   --> smart_pointers/src/box_.rs:14:4
[INFO] [stdout]    |
[INFO] [stdout] 14 | fn fn1() {
[INFO] [stdout]    |    ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling validation v0.1.0 (/opt/rustwide/workdir/validation)
[INFO] [stdout] warning: enum `List` is never used
[INFO] [stdout]   --> smart_pointers/src/box_.rs:19:6
[INFO] [stdout]    |
[INFO] [stdout] 19 | enum List<T> {
[INFO] [stdout]    |      ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling error_handling v0.1.0 (/opt/rustwide/workdir/error_handling)
[INFO] [stdout] warning: function `fn2` is never used
[INFO] [stdout]   --> smart_pointers/src/box_.rs:24:4
[INFO] [stdout]    |
[INFO] [stdout] 24 | fn fn2() {
[INFO] [stdout]    |    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling cli v0.1.0 (/opt/rustwide/workdir/cli)
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]   --> smart_pointers/src/box_.rs:31:8
[INFO] [stdout]    |
[INFO] [stdout] 31 | pub fn main() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> smart_pointers/src/deref.rs:35:8
[INFO] [stdout]    |
[INFO] [stdout] 34 | impl<T> MyBox<T> {
[INFO] [stdout]    | ---------------- associated function in this implementation
[INFO] [stdout] 35 |     fn new(x: T) -> MyBox<T> {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `List` is never used
[INFO] [stdout]   --> smart_pointers/src/rc_arc/rc.rs:23:6
[INFO] [stdout]    |
[INFO] [stdout] 23 | enum List {
[INFO] [stdout]    |      ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]   --> smart_pointers/src/rc_arc/rc.rs:30:8
[INFO] [stdout]    |
[INFO] [stdout] 30 | pub fn main() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `some_v`
[INFO] [stdout]   --> error_handling/src/main.rs:47:9
[INFO] [stdout]    |
[INFO] [stdout] 47 |     let some_v = div(2, 2).ok();
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_some_v`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `some_e`
[INFO] [stdout]   --> error_handling/src/main.rs:48:9
[INFO] [stdout]    |
[INFO] [stdout] 48 |     let some_e = div(2, 0).err();
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_some_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `display_result` is never used
[INFO] [stdout]   --> error_handling/src/main.rs:22:4
[INFO] [stdout]    |
[INFO] [stdout] 22 | fn display_result<T: std::fmt::Display, E: std::fmt::Display>(result: Result<T, E>) {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `multiple_error` is never used
[INFO] [stdout]   --> error_handling/src/error_propagation.rs:23:4
[INFO] [stdout]    |
[INFO] [stdout] 23 | fn multiple_error(s: &str) -> Result<i32, Box<dyn std::error::Error>> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `remove_attributes` is never used
[INFO] [stdout]  --> rusoto/src/main.rs:5:10
[INFO] [stdout]   |
[INFO] [stdout] 5 | async fn remove_attributes(table_name: &str, attribute_names: Vec<&str>) -> anyhow::Result<()> {
[INFO] [stdout]   |          ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling pretty_assertions v1.3.0
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling aws-sdk v0.1.0 (/opt/rustwide/workdir/aws-sdk)
[INFO] [stderr]    Compiling image v0.1.0 (/opt/rustwide/workdir/image)
[INFO] [stderr]    Compiling tests v0.1.0 (/opt/rustwide/workdir/tests)
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `greet` is never used
[INFO] [stdout]  --> tests/src/message.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn greet(name: &str) -> String {
[INFO] [stdout]   |    ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `add` is never used
[INFO] [stdout]  --> tests/src/unit_tests.rs:9:4
[INFO] [stdout]   |
[INFO] [stdout] 9 | fn add(left: i32, right: i32) -> i32 {
[INFO] [stdout]   |    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling serde_sandbox v0.1.0 (/opt/rustwide/workdir/serde_sandbox)
[INFO] [stderr]    Compiling type_conversion v0.1.0 (/opt/rustwide/workdir/type_conversion)
[INFO] [stderr]    Compiling document v0.1.0 (/opt/rustwide/workdir/document)
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]   --> type_conversion/src/from_into.rs:20:9
[INFO] [stdout]    |
[INFO] [stdout] 20 |     let a = A::from(b);
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `b_vec`
[INFO] [stdout]   --> type_conversion/src/from_into.rs:25:9
[INFO] [stdout]    |
[INFO] [stdout] 25 |     let b_vec = a_vec.into_iter().map(|a| a.into()).collect::<Vec<B>>();
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_b_vec`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]   --> type_conversion/src/from_into2.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 14 |     let a: A = b.into();
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]   --> type_conversion/src/from_into.rs:17:4
[INFO] [stdout]    |
[INFO] [stdout] 17 | fn main() {
[INFO] [stdout]    |    ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `vec` is never used
[INFO] [stdout]   --> type_conversion/src/from_into.rs:23:4
[INFO] [stdout]    |
[INFO] [stdout] 23 | fn vec() {
[INFO] [stdout]    |    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]   --> type_conversion/src/from_into2.rs:12:4
[INFO] [stdout]    |
[INFO] [stdout] 12 | fn main() {
[INFO] [stdout]    |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling persistence v0.1.0 (/opt/rustwide/workdir/persistence)
[INFO] [stderr]    Compiling ownership v0.1.0 (/opt/rustwide/workdir/ownership)
[INFO] [stderr]    Compiling smart_pointers v0.1.0 (/opt/rustwide/workdir/smart_pointers)
[INFO] [stdout] warning: variable `a` is assigned to, but never used
[INFO] [stdout]   --> ownership/src/lifetimes.rs:49:13
[INFO] [stdout]    |
[INFO] [stdout] 49 |         let a;
[INFO] [stdout]    |             ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider using `_a` instead
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `payload`
[INFO] [stdout]   --> persistence/src/arc_rwlock.rs:36:22
[INFO] [stdout]    |
[INFO] [stdout] 36 |     fn create(&self, payload: CreateTodo) -> Todo {
[INFO] [stdout]    |                      ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_payload`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `id`
[INFO] [stdout]   --> persistence/src/arc_rwlock.rs:40:19
[INFO] [stdout]    |
[INFO] [stdout] 40 |     fn get(&self, id: Id) -> Todo {
[INFO] [stdout]    |                   ^^ help: if this is intentional, prefix it with an underscore: `_id`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `id`
[INFO] [stdout]   --> persistence/src/arc_rwlock.rs:44:22
[INFO] [stdout]    |
[INFO] [stdout] 44 |     fn update(&self, id: Id, payload: UpdateTodo) -> Todo {
[INFO] [stdout]    |                      ^^ help: if this is intentional, prefix it with an underscore: `_id`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `payload`
[INFO] [stdout]   --> persistence/src/arc_rwlock.rs:44:30
[INFO] [stdout]    |
[INFO] [stdout] 44 |     fn update(&self, id: Id, payload: UpdateTodo) -> Todo {
[INFO] [stdout]    |                              ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_payload`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `id`
[INFO] [stdout]   --> persistence/src/arc_rwlock.rs:48:22
[INFO] [stdout]    |
[INFO] [stdout] 48 |     fn delete(&self, id: Id) {
[INFO] [stdout]    |                      ^^ help: if this is intentional, prefix it with an underscore: `_id`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `a` is never read
[INFO] [stdout]   --> ownership/src/lifetimes.rs:52:13
[INFO] [stdout]    |
[INFO] [stdout] 52 |             a = &b;
[INFO] [stdout]    |             ^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `result` is assigned to, but never used
[INFO] [stdout]   --> ownership/src/lifetimes.rs:79:13
[INFO] [stdout]    |
[INFO] [stdout] 79 |         let result;
[INFO] [stdout]    |             ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider using `_result` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `result` is never read
[INFO] [stdout]   --> ownership/src/lifetimes.rs:84:13
[INFO] [stdout]    |
[INFO] [stdout] 84 |             result = f(&s1, &s2);
[INFO] [stdout]    |             ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]   --> ownership/src/lifetimes.rs:75:18
[INFO] [stdout]    |
[INFO] [stdout] 75 |         fn f<'a>(x: &'a str, y: &'a str) -> &'a str {
[INFO] [stdout]    |                  ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]  --> persistence/src/arc_mutex.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn main() {}
[INFO] [stdout]   |    ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]   --> ownership/src/lifetimes.rs:75:30
[INFO] [stdout]    |
[INFO] [stdout] 75 |         fn f<'a>(x: &'a str, y: &'a str) -> &'a str {
[INFO] [stdout]    |                              ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `read_todos_ref`, and `write_todos_ref` are never used
[INFO] [stdout]   --> persistence/src/arc_rwlock.rs:18:12
[INFO] [stdout]    |
[INFO] [stdout] 17 | impl TodoRepository {
[INFO] [stdout]    | ------------------- associated items in this implementation
[INFO] [stdout] 18 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 22 |     fn read_todos_ref(&self) -> RwLockReadGuard<Todos> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 26 |     fn write_todos_ref(&self) -> RwLockWriteGuard<Todos> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]  --> persistence/src/rc_refcell.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn main() {}
[INFO] [stdout]   |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `id` and `text` are never read
[INFO] [stdout]  --> persistence/src/todo.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct Todo {
[INFO] [stdout]   |            ---- fields in this struct
[INFO] [stdout] 6 |     id: Id,
[INFO] [stdout]   |     ^^
[INFO] [stdout] 7 |     text: Text,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> persistence/src/todo.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 10 | impl Todo {
[INFO] [stdout]    | --------- associated function in this implementation
[INFO] [stdout] 11 |     pub fn new(id: Id, text: Text) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `text` is never read
[INFO] [stdout]   --> persistence/src/todo.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub struct CreateTodo {
[INFO] [stdout]    |            ---------- field in this struct
[INFO] [stdout] 17 |     text: Text,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `text` is never read
[INFO] [stdout]   --> persistence/src/todo.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub struct UpdateTodo {
[INFO] [stdout]    |            ---------- field in this struct
[INFO] [stdout] 21 |     text: Text,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]   --> ownership/src/lifetimes.rs:92:22
[INFO] [stdout]    |
[INFO] [stdout] 92 |         fn f<'a, 'b>(x: &'a str, y: &'b str) -> &'a str {
[INFO] [stdout]    |                      ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]   --> ownership/src/lifetimes.rs:92:34
[INFO] [stdout]    |
[INFO] [stdout] 92 |         fn f<'a, 'b>(x: &'a str, y: &'b str) -> &'a str {
[INFO] [stdout]    |                                  ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]    --> ownership/src/lifetimes.rs:121:26
[INFO] [stdout]     |
[INFO] [stdout] 121 |         fn method(&self, s: &str) -> &str {
[INFO] [stdout]     |                          ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `b`
[INFO] [stdout]   --> ownership/src/references.rs:29:13
[INFO] [stdout]    |
[INFO] [stdout] 29 |         let b = &mut a;
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `a` is never read
[INFO] [stdout]   --> ownership/src/references.rs:30:9
[INFO] [stdout]    |
[INFO] [stdout] 30 |         a = 1;
[INFO] [stdout]    |         ^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `b`
[INFO] [stdout]   --> ownership/src/references.rs:38:13
[INFO] [stdout]    |
[INFO] [stdout] 38 |         let b = &mut a;
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `b`
[INFO] [stdout]   --> ownership/src/references.rs:50:13
[INFO] [stdout]    |
[INFO] [stdout] 50 |         let b = &mut a;
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `c`
[INFO] [stdout]   --> ownership/src/references.rs:91:13
[INFO] [stdout]    |
[INFO] [stdout] 91 |         let c = &mut b;
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_c`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `c`
[INFO] [stdout]    --> ownership/src/references.rs:102:13
[INFO] [stdout]     |
[INFO] [stdout] 102 |         let c = &mut b;
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_c`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `c`
[INFO] [stdout]    --> ownership/src/references.rs:125:13
[INFO] [stdout]     |
[INFO] [stdout] 125 |         let c = b;
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_c`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `only_one_arg` is never used
[INFO] [stdout]    --> ownership/src/lifetimes.rs:108:8
[INFO] [stdout]     |
[INFO] [stdout] 108 |     fn only_one_arg(s: &str) -> &str {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `S` is never constructed
[INFO] [stdout]    --> ownership/src/lifetimes.rs:115:12
[INFO] [stdout]     |
[INFO] [stdout] 115 |     struct S<'a> {
[INFO] [stdout]     |            ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `method` and `method2` are never used
[INFO] [stdout]    --> ownership/src/lifetimes.rs:121:12
[INFO] [stdout]     |
[INFO] [stdout] 119 |     impl<'a> S<'a> {
[INFO] [stdout]     |     -------------- methods in this implementation
[INFO] [stdout] 120 |         // ライフタイム注釈を省略した場合、selfのライフタイムが出力ライフタイム引数に代入される
[INFO] [stdout] 121 |         fn method(&self, s: &str) -> &str {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 126 |         fn method2<'b>(&self, s: &'b str) -> &'b str {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> smart_pointers/src/deref.rs:81:13
[INFO] [stdout]    |
[INFO] [stdout] 81 |         let mut name = MyBox::new("name".to_string());
[INFO] [stdout]    |             ----^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `b`
[INFO] [stdout]   --> smart_pointers/src/rc_arc/rc.rs:34:9
[INFO] [stdout]    |
[INFO] [stdout] 34 |     let b = Cons(3, Rc::clone(&a));
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `c`
[INFO] [stdout]   --> smart_pointers/src/rc_arc/rc.rs:38:13
[INFO] [stdout]    |
[INFO] [stdout] 38 |         let c = Cons(4, Rc::clone(&a));
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_c`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `fn1` is never used
[INFO] [stdout]   --> smart_pointers/src/box_.rs:14:4
[INFO] [stdout]    |
[INFO] [stdout] 14 | fn fn1() {
[INFO] [stdout]    |    ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `List` is never used
[INFO] [stdout]   --> smart_pointers/src/box_.rs:19:6
[INFO] [stdout]    |
[INFO] [stdout] 19 | enum List<T> {
[INFO] [stdout]    |      ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `fn2` is never used
[INFO] [stdout]   --> smart_pointers/src/box_.rs:24:4
[INFO] [stdout]    |
[INFO] [stdout] 24 | fn fn2() {
[INFO] [stdout]    |    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]   --> smart_pointers/src/box_.rs:31:8
[INFO] [stdout]    |
[INFO] [stdout] 31 | pub fn main() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `List` is never used
[INFO] [stdout]   --> smart_pointers/src/rc_arc/rc.rs:23:6
[INFO] [stdout]    |
[INFO] [stdout] 23 | enum List {
[INFO] [stdout]    |      ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]   --> smart_pointers/src/rc_arc/rc.rs:30:8
[INFO] [stdout]    |
[INFO] [stdout] 30 | pub fn main() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling enums v0.1.0 (/opt/rustwide/workdir/enums)
[INFO] [stderr]    Compiling iterators v0.1.0 (/opt/rustwide/workdir/iterators)
[INFO] [stderr]    Compiling tree v0.1.0 (/opt/rustwide/workdir/tree)
[INFO] [stderr]    Compiling generics v0.1.0 (/opt/rustwide/workdir/generics)
[INFO] [stdout] warning: 12 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling env v0.1.0 (/opt/rustwide/workdir/env)
[INFO] [stdout] warning: 19 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling attributes v0.1.0 (/opt/rustwide/workdir/attributes)
[INFO] [stdout] warning: struct `Foo` is never constructed
[INFO] [stdout]  --> attributes/src/cfg_attr.rs:2:8
[INFO] [stdout]   |
[INFO] [stdout] 2 | struct Foo {}
[INFO] [stdout]   |        ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling closures v0.1.0 (/opt/rustwide/workdir/closures)
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling features v0.1.0 (/opt/rustwide/workdir/features)
[INFO] [stderr]    Compiling types v0.1.0 (/opt/rustwide/workdir/types)
[INFO] [stderr]    Compiling collections v0.1.0 (/opt/rustwide/workdir/collections)
[INFO] [stderr]    Compiling macros v0.1.0 (/opt/rustwide/workdir/macros)
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling unit_testing v0.1.0 (/opt/rustwide/workdir/unit_testing)
[INFO] [stderr]    Compiling cargo v0.1.0 (/opt/rustwide/workdir/cargo)
[INFO] [stderr]    Compiling concurrency v0.1.0 (/opt/rustwide/workdir/concurrency)
[INFO] [stderr]    Compiling structs v0.1.0 (/opt/rustwide/workdir/structs)
[INFO] [stderr]    Compiling io v0.1.0 (/opt/rustwide/workdir/io)
[INFO] [stdout] warning: unused variable: `square`
[INFO] [stdout]   --> structs/src/structs.rs:39:13
[INFO] [stdout]    |
[INFO] [stdout] 39 |         let square = Rectangle::square(1);
[INFO] [stdout]    |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_square`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `black`
[INFO] [stdout]   --> structs/src/tuple_structs.rs:12:13
[INFO] [stdout]    |
[INFO] [stdout] 12 |     let mut black = Color(0, 0, 0);
[INFO] [stdout]    |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_black`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> structs/src/tuple_structs.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout] 12 |     let mut black = Color(0, 0, 0);
[INFO] [stdout]    |         ----^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Rectangle` is never constructed
[INFO] [stdout]  --> structs/src/structs.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct Rectangle {
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `area` and `square` are never used
[INFO] [stdout]   --> structs/src/structs.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | impl Rectangle {
[INFO] [stdout]    | -------------- associated items in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 14 |     fn area(&self) -> u32 {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 20 |     fn square(size: u32) -> Rectangle {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `func` is never used
[INFO] [stdout]   --> structs/src/structs.rs:28:8
[INFO] [stdout]    |
[INFO] [stdout] 28 | pub fn func() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Color` is never constructed
[INFO] [stdout]  --> structs/src/tuple_structs.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | struct Color(i32, i32, i32);
[INFO] [stdout]   |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Position` is never constructed
[INFO] [stdout]  --> structs/src/tuple_structs.rs:9:8
[INFO] [stdout]   |
[INFO] [stdout] 9 | struct Position(i32, i32, i32);
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `func` is never used
[INFO] [stdout]   --> structs/src/tuple_structs.rs:11:4
[INFO] [stdout]    |
[INFO] [stdout] 11 | fn func() {
[INFO] [stdout]    |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling traits v0.1.0 (/opt/rustwide/workdir/traits)
[INFO] [stderr]    Compiling modules v0.1.0 (/opt/rustwide/workdir/modules)
[INFO] [stderr]    Compiling ddd v0.1.0 (/opt/rustwide/workdir/ddd)
[INFO] [stderr]    Compiling sandbox v0.1.0 (/opt/rustwide/workdir/sandbox)
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]   --> traits/src/associated_types.rs:49:8
[INFO] [stdout]    |
[INFO] [stdout] 49 | pub fn main() {}
[INFO] [stdout]    |        ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `item` is never read
[INFO] [stdout]  --> traits/src/derive/debug.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | struct Struct {
[INFO] [stdout]   |        ------ field in this struct
[INFO] [stdout] 7 |     item: i32,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Struct` 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]   --> traits/src/derive/debug.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | impl Struct {
[INFO] [stdout]    | ----------- associated function in this implementation
[INFO] [stdout] 11 |     fn new() -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Item` is never constructed
[INFO] [stdout]   --> traits/src/derive/debug.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | enum Enum {
[INFO] [stdout]    |      ---- variant in this enum
[INFO] [stdout] 18 |     Item,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Enum` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]   --> traits/src/derive/debug.rs:21:8
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub fn main() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]  --> traits/src/derive/default.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub fn main() {}
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]   --> traits/src/derive/eq.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub fn main() {}
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]   --> traits/src/derive/ord.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub fn main() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> traits/src/derive/partial_eq.rs:15:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | impl Struct {
[INFO] [stdout]    | ----------- associated function in this implementation
[INFO] [stdout] 15 |     fn new() -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Item1` and `Item2` are never constructed
[INFO] [stdout]   --> traits/src/derive/partial_eq.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 21 | enum Enum {
[INFO] [stdout]    |      ---- variants in this enum
[INFO] [stdout] 22 |     Item1,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 23 |     Item2,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Enum` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]   --> traits/src/derive/partial_eq.rs:26:8
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub fn main() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Item1` and `Item2` are never constructed
[INFO] [stdout]   --> traits/src/derive/partial_ord.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 18 | enum Enum {
[INFO] [stdout]    |      ---- variants in this enum
[INFO] [stdout] 19 |     Item1,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 20 |     Item2,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]   --> traits/src/derive/partial_ord.rs:23:8
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub fn main() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `error_a` is never used
[INFO] [stdout]   --> traits/src/trait_object.rs:59:8
[INFO] [stdout]    |
[INFO] [stdout] 59 |     fn error_a() -> Result<(), ErrorA> {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `error_b` is never used
[INFO] [stdout]   --> traits/src/trait_object.rs:63:8
[INFO] [stdout]    |
[INFO] [stdout] 63 |     fn error_b() -> Result<(), ErrorB> {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `error_a_b` is never used
[INFO] [stdout]   --> traits/src/trait_object.rs:67:8
[INFO] [stdout]    |
[INFO] [stdout] 67 |     fn error_a_b() -> Result<(), Box<dyn Error>> {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling time v0.1.0 (/opt/rustwide/workdir/time)
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 16 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 6.75s
[INFO] running `Command { std: "docker" "inspect" "c93b4da633e9f5a7d33cc17a4bbcb7028e85a10667ef727732388852abbdd9ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c93b4da633e9f5a7d33cc17a4bbcb7028e85a10667ef727732388852abbdd9ae", kill_on_drop: false }`
[INFO] [stdout] c93b4da633e9f5a7d33cc17a4bbcb7028e85a10667ef727732388852abbdd9ae
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-12-22" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] db6456e6191b78e42135821e20100f389e8117eb2f9f7b49193ab8c17cc2013d
[INFO] running `Command { std: "docker" "start" "-a" "db6456e6191b78e42135821e20100f389e8117eb2f9f7b49193ab8c17cc2013d", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `a`
[INFO] [stderr]   --> type_conversion/src/from_into.rs:20:9
[INFO] [stderr]    |
[INFO] [stderr] 20 |     let a = A::from(b);
[INFO] [stderr]    |         ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `b_vec`
[INFO] [stderr]   --> type_conversion/src/from_into.rs:25:9
[INFO] [stderr]    |
[INFO] [stderr] 25 |     let b_vec = a_vec.into_iter().map(|a| a.into()).collect::<Vec<B>>();
[INFO] [stderr]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_b_vec`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `a`
[INFO] [stderr]   --> type_conversion/src/from_into2.rs:14:9
[INFO] [stderr]    |
[INFO] [stderr] 14 |     let a: A = b.into();
[INFO] [stderr]    |         ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stderr] 
[INFO] [stderr] warning: function `main` is never used
[INFO] [stderr]   --> type_conversion/src/from_into.rs:17:4
[INFO] [stderr]    |
[INFO] [stderr] 17 | fn main() {
[INFO] [stderr]    |    ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function `vec` is never used
[INFO] [stderr]   --> type_conversion/src/from_into.rs:23:4
[INFO] [stderr]    |
[INFO] [stderr] 23 | fn vec() {
[INFO] [stderr]    |    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `main` is never used
[INFO] [stderr]   --> type_conversion/src/from_into2.rs:12:4
[INFO] [stderr]    |
[INFO] [stderr] 12 | fn main() {
[INFO] [stderr]    |    ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `b`
[INFO] [stderr]   --> smart_pointers/src/rc_arc/rc.rs:34:9
[INFO] [stderr]    |
[INFO] [stderr] 34 |     let b = Cons(3, Rc::clone(&a));
[INFO] [stderr]    |         ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `c`
[INFO] [stderr]   --> smart_pointers/src/rc_arc/rc.rs:38:13
[INFO] [stderr]    |
[INFO] [stderr] 38 |         let c = Cons(4, Rc::clone(&a));
[INFO] [stderr]    |             ^ help: if this is intentional, prefix it with an underscore: `_c`
[INFO] [stderr] 
[INFO] [stderr] warning: function `fn1` is never used
[INFO] [stderr]   --> smart_pointers/src/box_.rs:14:4
[INFO] [stderr]    |
[INFO] [stderr] 14 | fn fn1() {
[INFO] [stderr]    |    ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: enum `List` is never used
[INFO] [stderr]   --> smart_pointers/src/box_.rs:19:6
[INFO] [stderr]    |
[INFO] [stderr] 19 | enum List<T> {
[INFO] [stderr]    |      ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `fn2` is never used
[INFO] [stderr]   --> smart_pointers/src/box_.rs:24:4
[INFO] [stderr]    |
[INFO] [stderr] 24 | fn fn2() {
[INFO] [stderr]    |    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `main` is never used
[INFO] [stderr]   --> smart_pointers/src/box_.rs:31:8
[INFO] [stderr]    |
[INFO] [stderr] 31 | pub fn main() {
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function `new` is never used
[INFO] [stderr]   --> smart_pointers/src/deref.rs:35:8
[INFO] [stderr]    |
[INFO] [stderr] 34 | impl<T> MyBox<T> {
[INFO] [stderr]    | ---------------- associated function in this implementation
[INFO] [stderr] 35 |     fn new(x: T) -> MyBox<T> {
[INFO] [stderr]    |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum `List` is never used
[INFO] [stderr]   --> smart_pointers/src/rc_arc/rc.rs:23:6
[INFO] [stderr]    |
[INFO] [stderr] 23 | enum List {
[INFO] [stderr]    |      ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `main` is never used
[INFO] [stderr]   --> smart_pointers/src/rc_arc/rc.rs:30:8
[INFO] [stderr]    |
[INFO] [stderr] 30 | pub fn main() {
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `square`
[INFO] [stderr]   --> structs/src/structs.rs:39:13
[INFO] [stderr]    |
[INFO] [stderr] 39 |         let square = Rectangle::square(1);
[INFO] [stderr]    |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_square`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `black`
[INFO] [stderr]   --> structs/src/tuple_structs.rs:12:13
[INFO] [stderr]    |
[INFO] [stderr] 12 |     let mut black = Color(0, 0, 0);
[INFO] [stderr]    |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_black`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> structs/src/tuple_structs.rs:12:9
[INFO] [stderr]    |
[INFO] [stderr] 12 |     let mut black = Color(0, 0, 0);
[INFO] [stderr]    |         ----^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Rectangle` is never constructed
[INFO] [stderr]  --> structs/src/structs.rs:5:8
[INFO] [stderr]   |
[INFO] [stderr] 5 | struct Rectangle {
[INFO] [stderr]   |        ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated items `area` and `square` are never used
[INFO] [stderr]   --> structs/src/structs.rs:14:8
[INFO] [stderr]    |
[INFO] [stderr] 10 | impl Rectangle {
[INFO] [stderr]    | -------------- associated items in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 14 |     fn area(&self) -> u32 {
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] ...
[INFO] [stderr] 20 |     fn square(size: u32) -> Rectangle {
[INFO] [stderr]    |        ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `func` is never used
[INFO] [stderr]   --> structs/src/structs.rs:28:8
[INFO] [stderr]    |
[INFO] [stderr] 28 | pub fn func() {
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Color` is never constructed
[INFO] [stderr]  --> structs/src/tuple_structs.rs:7:8
[INFO] [stderr]   |
[INFO] [stderr] 7 | struct Color(i32, i32, i32);
[INFO] [stderr]   |        ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Position` is never constructed
[INFO] [stderr]  --> structs/src/tuple_structs.rs:9:8
[INFO] [stderr]   |
[INFO] [stderr] 9 | struct Position(i32, i32, i32);
[INFO] [stderr]   |        ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `func` is never used
[INFO] [stderr]   --> structs/src/tuple_structs.rs:11:4
[INFO] [stderr]    |
[INFO] [stderr] 11 | fn func() {
[INFO] [stderr]    |    ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `type_conversion` (lib) generated 6 warnings (run `cargo fix --lib -p type_conversion` to apply 3 suggestions)
[INFO] [stderr] warning: `smart_pointers` (lib) generated 9 warnings (run `cargo fix --lib -p smart_pointers` to apply 2 suggestions)
[INFO] [stderr] warning: `structs` (lib) generated 9 warnings (run `cargo fix --lib -p structs` to apply 3 suggestions)
[INFO] [stderr] warning: function `main` is never used
[INFO] [stderr]   --> traits/src/associated_types.rs:49:8
[INFO] [stderr]    |
[INFO] [stderr] 49 | pub fn main() {}
[INFO] [stderr]    |        ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field `item` is never read
[INFO] [stderr]  --> traits/src/derive/debug.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | struct Struct {
[INFO] [stderr]   |        ------ field in this struct
[INFO] [stderr] 7 |     item: i32,
[INFO] [stderr]   |     ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `Struct` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: associated function `new` is never used
[INFO] [stderr]   --> traits/src/derive/debug.rs:11:8
[INFO] [stderr]    |
[INFO] [stderr] 10 | impl Struct {
[INFO] [stderr]    | ----------- associated function in this implementation
[INFO] [stderr] 11 |     fn new() -> Self {
[INFO] [stderr]    |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant `Item` is never constructed
[INFO] [stderr]   --> traits/src/derive/debug.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 17 | enum Enum {
[INFO] [stderr]    |      ---- variant in this enum
[INFO] [stderr] 18 |     Item,
[INFO] [stderr]    |     ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `Enum` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: function `main` is never used
[INFO] [stderr]   --> traits/src/derive/debug.rs:21:8
[INFO] [stderr]    |
[INFO] [stderr] 21 | pub fn main() {
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `main` is never used
[INFO] [stderr]  --> traits/src/derive/default.rs:8:8
[INFO] [stderr]   |
[INFO] [stderr] 8 | pub fn main() {}
[INFO] [stderr]   |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `main` is never used
[INFO] [stderr]   --> traits/src/derive/eq.rs:14:8
[INFO] [stderr]    |
[INFO] [stderr] 14 | pub fn main() {}
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `main` is never used
[INFO] [stderr]   --> traits/src/derive/ord.rs:14:8
[INFO] [stderr]    |
[INFO] [stderr] 14 | pub fn main() {
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function `new` is never used
[INFO] [stderr]   --> traits/src/derive/partial_eq.rs:15:8
[INFO] [stderr]    |
[INFO] [stderr] 14 | impl Struct {
[INFO] [stderr]    | ----------- associated function in this implementation
[INFO] [stderr] 15 |     fn new() -> Self {
[INFO] [stderr]    |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variants `Item1` and `Item2` are never constructed
[INFO] [stderr]   --> traits/src/derive/partial_eq.rs:22:5
[INFO] [stderr]    |
[INFO] [stderr] 21 | enum Enum {
[INFO] [stderr]    |      ---- variants in this enum
[INFO] [stderr] 22 |     Item1,
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr] 23 |     Item2,
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `Enum` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: function `main` is never used
[INFO] [stderr]   --> traits/src/derive/partial_eq.rs:26:8
[INFO] [stderr]    |
[INFO] [stderr] 26 | pub fn main() {
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variants `Item1` and `Item2` are never constructed
[INFO] [stderr]   --> traits/src/derive/partial_ord.rs:19:5
[INFO] [stderr]    |
[INFO] [stderr] 18 | enum Enum {
[INFO] [stderr]    |      ---- variants in this enum
[INFO] [stderr] 19 |     Item1,
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr] 20 |     Item2,
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `main` is never used
[INFO] [stderr]   --> traits/src/derive/partial_ord.rs:23:8
[INFO] [stderr]    |
[INFO] [stderr] 23 | pub fn main() {
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `error_a` is never used
[INFO] [stderr]   --> traits/src/trait_object.rs:59:8
[INFO] [stderr]    |
[INFO] [stderr] 59 |     fn error_a() -> Result<(), ErrorA> {
[INFO] [stderr]    |        ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `error_b` is never used
[INFO] [stderr]   --> traits/src/trait_object.rs:63:8
[INFO] [stderr]    |
[INFO] [stderr] 63 |     fn error_b() -> Result<(), ErrorB> {
[INFO] [stderr]    |        ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `error_a_b` is never used
[INFO] [stderr]   --> traits/src/trait_object.rs:67:8
[INFO] [stderr]    |
[INFO] [stderr] 67 |     fn error_a_b() -> Result<(), Box<dyn Error>> {
[INFO] [stderr]    |        ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `traits` (lib) generated 16 warnings
[INFO] [stderr] warning: unused variable: `some_v`
[INFO] [stderr]   --> error_handling/src/main.rs:47:9
[INFO] [stderr]    |
[INFO] [stderr] 47 |     let some_v = div(2, 2).ok();
[INFO] [stderr]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_some_v`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `some_e`
[INFO] [stderr]   --> error_handling/src/main.rs:48:9
[INFO] [stderr]    |
[INFO] [stderr] 48 |     let some_e = div(2, 0).err();
[INFO] [stderr]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_some_e`
[INFO] [stderr] 
[INFO] [stderr] warning: function `display_result` is never used
[INFO] [stderr]   --> error_handling/src/main.rs:22:4
[INFO] [stderr]    |
[INFO] [stderr] 22 | fn display_result<T: std::fmt::Display, E: std::fmt::Display>(result: Result<T, E>) {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function `multiple_error` is never used
[INFO] [stderr]   --> error_handling/src/error_propagation.rs:23:4
[INFO] [stderr]    |
[INFO] [stderr] 23 | fn multiple_error(s: &str) -> Result<i32, Box<dyn std::error::Error>> {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `remove_attributes` is never used
[INFO] [stderr]  --> rusoto/src/main.rs:5:10
[INFO] [stderr]   |
[INFO] [stderr] 5 | async fn remove_attributes(table_name: &str, attribute_names: Vec<&str>) -> anyhow::Result<()> {
[INFO] [stderr]   |          ^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `error_handling` (bin "error_handling" test) generated 4 warnings (run `cargo fix --bin "error_handling" --tests` to apply 2 suggestions)
[INFO] [stderr] warning: `rusoto` (bin "rusoto" test) generated 1 warning
[INFO] [stderr] warning: function `greet` is never used
[INFO] [stderr]  --> tests/src/message.rs:1:4
[INFO] [stderr]   |
[INFO] [stderr] 1 | fn greet(name: &str) -> String {
[INFO] [stderr]   |    ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function `add` is never used
[INFO] [stderr]  --> tests/src/unit_tests.rs:9:4
[INFO] [stderr]   |
[INFO] [stderr] 9 | fn add(left: i32, right: i32) -> i32 {
[INFO] [stderr]   |    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `tests` (bin "tests") generated 2 warnings
[INFO] [stderr] warning: unused variable: `payload`
[INFO] [stderr]   --> persistence/src/arc_rwlock.rs:36:22
[INFO] [stderr]    |
[INFO] [stderr] 36 |     fn create(&self, payload: CreateTodo) -> Todo {
[INFO] [stderr]    |                      ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_payload`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `id`
[INFO] [stderr]   --> persistence/src/arc_rwlock.rs:40:19
[INFO] [stderr]    |
[INFO] [stderr] 40 |     fn get(&self, id: Id) -> Todo {
[INFO] [stderr]    |                   ^^ help: if this is intentional, prefix it with an underscore: `_id`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `id`
[INFO] [stderr]   --> persistence/src/arc_rwlock.rs:44:22
[INFO] [stderr]    |
[INFO] [stderr] 44 |     fn update(&self, id: Id, payload: UpdateTodo) -> Todo {
[INFO] [stderr]    |                      ^^ help: if this is intentional, prefix it with an underscore: `_id`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `payload`
[INFO] [stderr]   --> persistence/src/arc_rwlock.rs:44:30
[INFO] [stderr]    |
[INFO] [stderr] 44 |     fn update(&self, id: Id, payload: UpdateTodo) -> Todo {
[INFO] [stderr]    |                              ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_payload`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `id`
[INFO] [stderr]   --> persistence/src/arc_rwlock.rs:48:22
[INFO] [stderr]    |
[INFO] [stderr] 48 |     fn delete(&self, id: Id) {
[INFO] [stderr]    |                      ^^ help: if this is intentional, prefix it with an underscore: `_id`
[INFO] [stderr] 
[INFO] [stderr] warning: function `main` is never used
[INFO] [stderr]  --> persistence/src/arc_mutex.rs:1:4
[INFO] [stderr]   |
[INFO] [stderr] 1 | fn main() {}
[INFO] [stderr]   |    ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated items `new`, `read_todos_ref`, and `write_todos_ref` are never used
[INFO] [stderr]   --> persistence/src/arc_rwlock.rs:18:12
[INFO] [stderr]    |
[INFO] [stderr] 17 | impl TodoRepository {
[INFO] [stderr]    | ------------------- associated items in this implementation
[INFO] [stderr] 18 |     pub fn new() -> Self {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] ...
[INFO] [stderr] 22 |     fn read_todos_ref(&self) -> RwLockReadGuard<Todos> {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 26 |     fn write_todos_ref(&self) -> RwLockWriteGuard<Todos> {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `main` is never used
[INFO] [stderr]  --> persistence/src/rc_refcell.rs:1:4
[INFO] [stderr]   |
[INFO] [stderr] 1 | fn main() {}
[INFO] [stderr]   |    ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: fields `id` and `text` are never read
[INFO] [stderr]  --> persistence/src/todo.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub struct Todo {
[INFO] [stderr]   |            ---- fields in this struct
[INFO] [stderr] 6 |     id: Id,
[INFO] [stderr]   |     ^^
[INFO] [stderr] 7 |     text: Text,
[INFO] [stderr]   |     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function `new` is never used
[INFO] [stderr]   --> persistence/src/todo.rs:11:12
[INFO] [stderr]    |
[INFO] [stderr] 10 | impl Todo {
[INFO] [stderr]    | --------- associated function in this implementation
[INFO] [stderr] 11 |     pub fn new(id: Id, text: Text) -> Self {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field `text` is never read
[INFO] [stderr]   --> persistence/src/todo.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 16 | pub struct CreateTodo {
[INFO] [stderr]    |            ---------- field in this struct
[INFO] [stderr] 17 |     text: Text,
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field `text` is never read
[INFO] [stderr]   --> persistence/src/todo.rs:21:5
[INFO] [stderr]    |
[INFO] [stderr] 20 | pub struct UpdateTodo {
[INFO] [stderr]    |            ---------- field in this struct
[INFO] [stderr] 21 |     text: Text,
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `type_conversion` (lib test) generated 6 warnings (6 duplicates)
[INFO] [stderr] warning: `persistence` (bin "persistence" test) generated 12 warnings (run `cargo fix --bin "persistence" --tests` to apply 5 suggestions)
[INFO] [stderr] warning: struct `Foo` is never constructed
[INFO] [stderr]  --> attributes/src/cfg_attr.rs:2:8
[INFO] [stderr]   |
[INFO] [stderr] 2 | struct Foo {}
[INFO] [stderr]   |        ^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> smart_pointers/src/deref.rs:81:13
[INFO] [stderr]    |
[INFO] [stderr] 81 |         let mut name = MyBox::new("name".to_string());
[INFO] [stderr]    |             ----^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `attributes` (bin "attributes" test) generated 1 warning
[INFO] [stderr] warning: `structs` (lib test) generated 9 warnings (9 duplicates)
[INFO] [stderr] warning: `smart_pointers` (lib test) generated 9 warnings (8 duplicates) (run `cargo fix --lib -p smart_pointers --tests` to apply 1 suggestion)
[INFO] [stderr] warning: variable `a` is assigned to, but never used
[INFO] [stderr]   --> ownership/src/lifetimes.rs:49:13
[INFO] [stderr]    |
[INFO] [stderr] 49 |         let a;
[INFO] [stderr]    |             ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: consider using `_a` instead
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `a` is never read
[INFO] [stderr]   --> ownership/src/lifetimes.rs:52:13
[INFO] [stderr]    |
[INFO] [stderr] 52 |             a = &b;
[INFO] [stderr]    |             ^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable `result` is assigned to, but never used
[INFO] [stderr]   --> ownership/src/lifetimes.rs:79:13
[INFO] [stderr]    |
[INFO] [stderr] 79 |         let result;
[INFO] [stderr]    |             ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: consider using `_result` instead
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `result` is never read
[INFO] [stderr]   --> ownership/src/lifetimes.rs:84:13
[INFO] [stderr]    |
[INFO] [stderr] 84 |             result = f(&s1, &s2);
[INFO] [stderr]    |             ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]   --> ownership/src/lifetimes.rs:75:18
[INFO] [stderr]    |
[INFO] [stderr] 75 |         fn f<'a>(x: &'a str, y: &'a str) -> &'a str {
[INFO] [stderr]    |                  ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `y`
[INFO] [stderr]   --> ownership/src/lifetimes.rs:75:30
[INFO] [stderr]    |
[INFO] [stderr] 75 |         fn f<'a>(x: &'a str, y: &'a str) -> &'a str {
[INFO] [stderr]    |                              ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]   --> ownership/src/lifetimes.rs:92:22
[INFO] [stderr]    |
[INFO] [stderr] 92 |         fn f<'a, 'b>(x: &'a str, y: &'b str) -> &'a str {
[INFO] [stderr]    |                      ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `y`
[INFO] [stderr]   --> ownership/src/lifetimes.rs:92:34
[INFO] [stderr]    |
[INFO] [stderr] 92 |         fn f<'a, 'b>(x: &'a str, y: &'b str) -> &'a str {
[INFO] [stderr]    |                                  ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `s`
[INFO] [stderr]    --> ownership/src/lifetimes.rs:121:26
[INFO] [stderr]     |
[INFO] [stderr] 121 |         fn method(&self, s: &str) -> &str {
[INFO] [stderr]     |                          ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `b`
[INFO] [stderr]   --> ownership/src/references.rs:29:13
[INFO] [stderr]    |
[INFO] [stderr] 29 |         let b = &mut a;
[INFO] [stderr]    |             ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `a` is never read
[INFO] [stderr]   --> ownership/src/references.rs:30:9
[INFO] [stderr]    |
[INFO] [stderr] 30 |         a = 1;
[INFO] [stderr]    |         ^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `b`
[INFO] [stderr]   --> ownership/src/references.rs:38:13
[INFO] [stderr]    |
[INFO] [stderr] 38 |         let b = &mut a;
[INFO] [stderr]    |             ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `b`
[INFO] [stderr]   --> ownership/src/references.rs:50:13
[INFO] [stderr]    |
[INFO] [stderr] 50 |         let b = &mut a;
[INFO] [stderr]    |             ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `c`
[INFO] [stderr]   --> ownership/src/references.rs:91:13
[INFO] [stderr]    |
[INFO] [stderr] 91 |         let c = &mut b;
[INFO] [stderr]    |             ^ help: if this is intentional, prefix it with an underscore: `_c`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `c`
[INFO] [stderr]    --> ownership/src/references.rs:102:13
[INFO] [stderr]     |
[INFO] [stderr] 102 |         let c = &mut b;
[INFO] [stderr]     |             ^ help: if this is intentional, prefix it with an underscore: `_c`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `c`
[INFO] [stderr]    --> ownership/src/references.rs:125:13
[INFO] [stderr]     |
[INFO] [stderr] 125 |         let c = b;
[INFO] [stderr]     |             ^ help: if this is intentional, prefix it with an underscore: `_c`
[INFO] [stderr] 
[INFO] [stderr] warning: function `only_one_arg` is never used
[INFO] [stderr]    --> ownership/src/lifetimes.rs:108:8
[INFO] [stderr]     |
[INFO] [stderr] 108 |     fn only_one_arg(s: &str) -> &str {
[INFO] [stderr]     |        ^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct `S` is never constructed
[INFO] [stderr]    --> ownership/src/lifetimes.rs:115:12
[INFO] [stderr]     |
[INFO] [stderr] 115 |     struct S<'a> {
[INFO] [stderr]     |            ^
[INFO] [stderr] 
[INFO] [stderr] warning: methods `method` and `method2` are never used
[INFO] [stderr]    --> ownership/src/lifetimes.rs:121:12
[INFO] [stderr]     |
[INFO] [stderr] 119 |     impl<'a> S<'a> {
[INFO] [stderr]     |     -------------- methods in this implementation
[INFO] [stderr] 120 |         // ライフタイム注釈を省略した場合、selfのライフタイムが出力ライフタイム引数に代入される
[INFO] [stderr] 121 |         fn method(&self, s: &str) -> &str {
[INFO] [stderr]     |            ^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 126 |         fn method2<'b>(&self, s: &'b str) -> &'b str {
[INFO] [stderr]     |            ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `traits` (lib test) generated 16 warnings (16 duplicates)
[INFO] [stderr] warning: `ownership` (lib test) generated 19 warnings (run `cargo fix --lib -p ownership --tests` to apply 11 suggestions)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.39s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/attributes-d2d3fb09faf63fdc)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/aws_sdk-e3ead5d17abc755b)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/aws_sdk-4fffd2dc0cc85d55)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/cargo-f55549c0744ac50d)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/cli-7c418e547dd21ad7)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/closures-a80c4819a6b07716)
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test recursive::tests::five_120 ... ok
[INFO] [stdout] test recursive::tests::one_1 ... ok
[INFO] [stdout] test recursive::tests::two_2 ... ok
[INFO] [stdout] test recursive::tests::four_24 ... ok
[INFO] [stdout] test recursive::tests::three_6 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/collections-fb7958e13bcfcad7)
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test set::hash_set::tests::intersection ... ok
[INFO] [stdout] test set::b_tree_set::tests::main ... ok
[INFO] [stdout] test set::hash_set::tests::main ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/concurrency-20c1caead6cfd3c4)
[INFO] [stdout] 
[INFO] [stdout] running 10 tests
[INFO] [stdout] test channel_sandbox::tests::main_send_thread_receive ... ok
[INFO] [stdout] test channel_sandbox::tests::thread_send_main_receive ... ok
[INFO] [stdout] test channel_sandbox::tests::thread_receive_main_send ... ok
[INFO] [stdout] test channel::tests::single ... ok
[INFO] [stdout] test spawn_join::tests::spawn ... ok
[INFO] [stdout] test mutual_exclusion::mutex::sample ... ok
[INFO] [stdout] test spawn_join::tests::spawn_join ... ok
[INFO] [stdout] test channel::tests::multiple ... ok
[INFO] [stdout] test channel::tests::clone_tx ... ok
[INFO] [stdout] test channel_sandbox::tests::main_receive_thread_send has been running for over 60 seconds
[ERROR] error running command: no output for 300 seconds
[INFO] running `Command { std: "docker" "inspect" "db6456e6191b78e42135821e20100f389e8117eb2f9f7b49193ab8c17cc2013d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "db6456e6191b78e42135821e20100f389e8117eb2f9f7b49193ab8c17cc2013d", kill_on_drop: false }`
[INFO] [stdout] db6456e6191b78e42135821e20100f389e8117eb2f9f7b49193ab8c17cc2013d
