[INFO] cloning repository https://github.com/sibarras/atomics_and_locks
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sibarras/atomics_and_locks" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsibarras%2Fatomics_and_locks", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsibarras%2Fatomics_and_locks'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a3296cb4555fdcfc911024c3b95e45e5237ffa17
[INFO] checking sibarras/atomics_and_locks against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsibarras%2Fatomics_and_locks" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/sibarras/atomics_and_locks on toolchain 1f12b9b0fdbe735968ac002792a720f0ba4faca6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/sibarras/atomics_and_locks
[INFO] finished tweaking git repo https://github.com/sibarras/atomics_and_locks
[INFO] tweaked toml for git repo https://github.com/sibarras/atomics_and_locks written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/sibarras/atomics_and_locks 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" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f7c1a34744de923f21ab0151edce237a2d59895459aa3c1bb98e2619b0a13420
[INFO] running `Command { std: "docker" "start" "-a" "f7c1a34744de923f21ab0151edce237a2d59895459aa3c1bb98e2619b0a13420", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f7c1a34744de923f21ab0151edce237a2d59895459aa3c1bb98e2619b0a13420", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f7c1a34744de923f21ab0151edce237a2d59895459aa3c1bb98e2619b0a13420", kill_on_drop: false }`
[INFO] [stdout] f7c1a34744de923f21ab0151edce237a2d59895459aa3c1bb98e2619b0a13420
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0b8950935e9df2365ff9c17c153b5609e996597fc0aec48044393a776b40ae64
[INFO] running `Command { std: "docker" "start" "-a" "0b8950935e9df2365ff9c17c153b5609e996597fc0aec48044393a776b40ae64", kill_on_drop: false }`
[INFO] [stderr]     Checking atomics_and_locks v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `crate::condition_variables`
[INFO] [stdout]  --> src/cap_1.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::condition_variables;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::sync::atomic::AtomicU64`
[INFO] [stdout]    --> src/cap_3.rs:104:9
[INFO] [stdout]     |
[INFO] [stdout] 104 |     use std::sync::atomic::AtomicU64;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `time::Duration`
[INFO] [stdout]    --> src/cap_3.rs:107:41
[INFO] [stdout]     |
[INFO] [stdout] 107 |     use std::{sync::atomic::AtomicBool, time::Duration};
[INFO] [stdout]     |                                         ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::thread`
[INFO] [stdout]    --> src/cap_3.rs:176:9
[INFO] [stdout]     |
[INFO] [stdout] 176 |     use std::thread;
[INFO] [stdout]     |         ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::thread`
[INFO] [stdout]  --> src/cap_5.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::thread;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::condition_variables`
[INFO] [stdout]  --> src/cap_1.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::condition_variables;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]   --> src/cap_5.rs:30:13
[INFO] [stdout]    |
[INFO] [stdout] 30 |             ///! My comment
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^
[INFO] [stdout] 31 |             let mut b = self.queue.lock().unwrap();
[INFO] [stdout]    |             --------------------------------------- rustdoc does not generate documentation for statements
[INFO] [stdout]    |
[INFO] [stdout]    = help: use `//` for a plain comment
[INFO] [stdout]    = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ops::BitAndAssign`
[INFO] [stdout]  --> src/parking.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     ops::BitAndAssign,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::sync::atomic::AtomicU64`
[INFO] [stdout]    --> src/cap_3.rs:104:9
[INFO] [stdout]     |
[INFO] [stdout] 104 |     use std::sync::atomic::AtomicU64;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `time::Duration`
[INFO] [stdout]    --> src/cap_3.rs:107:41
[INFO] [stdout]     |
[INFO] [stdout] 107 |     use std::{sync::atomic::AtomicBool, time::Duration};
[INFO] [stdout]     |                                         ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::thread`
[INFO] [stdout]    --> src/cap_3.rs:176:9
[INFO] [stdout]     |
[INFO] [stdout] 176 |     use std::thread;
[INFO] [stdout]     |         ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::thread`
[INFO] [stdout]  --> src/cap_5.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::thread;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]   --> src/cap_5.rs:30:13
[INFO] [stdout]    |
[INFO] [stdout] 30 |             ///! My comment
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^
[INFO] [stdout] 31 |             let mut b = self.queue.lock().unwrap();
[INFO] [stdout]    |             --------------------------------------- rustdoc does not generate documentation for statements
[INFO] [stdout]    |
[INFO] [stdout]    = help: use `//` for a plain comment
[INFO] [stdout]    = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ops::BitAndAssign`
[INFO] [stdout]  --> src/parking.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     ops::BitAndAssign,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `f` is never used
[INFO] [stdout]  --> src/cap_1.rs:5:4
[INFO] [stdout]   |
[INFO] [stdout] 5 | fn f() {
[INFO] [stdout]   |    ^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run_without_knowing_if_completed` is never used
[INFO] [stdout]  --> src/cap_1.rs:9:4
[INFO] [stdout]   |
[INFO] [stdout] 9 | fn run_without_knowing_if_completed() {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run_checking_if_completed` is never used
[INFO] [stdout]   --> src/cap_1.rs:16:4
[INFO] [stdout]    |
[INFO] [stdout] 16 | fn run_checking_if_completed() {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `better_join` is never used
[INFO] [stdout]   --> src/cap_1.rs:24:4
[INFO] [stdout]    |
[INFO] [stdout] 24 | fn better_join() {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `calc_sum` is never used
[INFO] [stdout]   --> src/cap_1.rs:35:10
[INFO] [stdout]    |
[INFO] [stdout] 35 | const fn calc_sum(v: &[usize]) -> usize {
[INFO] [stdout]    |          ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `calc_max` is never used
[INFO] [stdout]   --> src/cap_1.rs:47:10
[INFO] [stdout]    |
[INFO] [stdout] 47 | const fn calc_max(v: &[usize]) -> usize {
[INFO] [stdout]    |          ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `double_calculation` is never used
[INFO] [stdout]   --> src/cap_1.rs:60:4
[INFO] [stdout]    |
[INFO] [stdout] 60 | fn double_calculation() {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `double_arc_calculation` is never used
[INFO] [stdout]   --> src/cap_1.rs:71:4
[INFO] [stdout]    |
[INFO] [stdout] 71 | fn double_arc_calculation() {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `cell_mutability` is never used
[INFO] [stdout]   --> src/cap_1.rs:82:4
[INFO] [stdout]    |
[INFO] [stdout] 82 | fn cell_mutability() {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]   --> src/cap_1.rs:99:4
[INFO] [stdout]    |
[INFO] [stdout] 99 | fn main() {
[INFO] [stdout]    |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]    --> src/cap_2.rs:225:8
[INFO] [stdout]     |
[INFO] [stdout] 225 | pub fn main() {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]  --> src/cap_2.rs:6:19
[INFO] [stdout]   |
[INFO] [stdout] 6 |     pub(super) fn main() {
[INFO] [stdout]   |                   ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `some_work` is never used
[INFO] [stdout]   --> src/cap_2.rs:25:8
[INFO] [stdout]    |
[INFO] [stdout] 25 |     fn some_work() {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `process_item` is never used
[INFO] [stdout]   --> src/cap_2.rs:36:8
[INFO] [stdout]    |
[INFO] [stdout] 36 |     fn process_item(_i: usize) {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]   --> src/cap_2.rs:40:12
[INFO] [stdout]    |
[INFO] [stdout] 40 |     pub fn main() {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `with_sync` is never used
[INFO] [stdout]   --> src/cap_2.rs:64:12
[INFO] [stdout]    |
[INFO] [stdout] 64 |     pub fn with_sync() {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `calculate_x` is never used
[INFO] [stdout]   --> src/cap_2.rs:94:8
[INFO] [stdout]    |
[INFO] [stdout] 94 |     fn calculate_x() -> u64 {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_x` is never used
[INFO] [stdout]   --> src/cap_2.rs:97:12
[INFO] [stdout]    |
[INFO] [stdout] 97 |     pub fn get_x() -> u64 {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `process_item` is never used
[INFO] [stdout]    --> src/cap_2.rs:114:8
[INFO] [stdout]     |
[INFO] [stdout] 114 |     fn process_item(_v: i32) {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]    --> src/cap_2.rs:117:12
[INFO] [stdout]     |
[INFO] [stdout] 117 |     pub fn main() {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `process_item` is never used
[INFO] [stdout]    --> src/cap_2.rs:147:8
[INFO] [stdout]     |
[INFO] [stdout] 147 |     fn process_item(_i: i32) {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]    --> src/cap_2.rs:150:12
[INFO] [stdout]     |
[INFO] [stdout] 150 |     pub fn main() {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `allocate_new_id` is never used
[INFO] [stdout]    --> src/cap_2.rs:194:12
[INFO] [stdout]     |
[INFO] [stdout] 194 |     pub fn allocate_new_id() -> u32 {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `generate_random_key` is never used
[INFO] [stdout]    --> src/cap_2.rs:208:8
[INFO] [stdout]     |
[INFO] [stdout] 208 |     fn generate_random_key() -> u64 {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_key` is never used
[INFO] [stdout]    --> src/cap_2.rs:211:12
[INFO] [stdout]     |
[INFO] [stdout] 211 |     pub fn get_key() -> u64 {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]    --> src/cap_3.rs:204:8
[INFO] [stdout]     |
[INFO] [stdout] 204 | pub fn main() {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static `X` is never used
[INFO] [stdout]  --> src/cap_3.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 |     static X: AtomicI32 = AtomicI32::new(0);
[INFO] [stdout]   |            ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]  --> src/cap_3.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 |     pub fn main() {
[INFO] [stdout]   |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static `X` is never used
[INFO] [stdout]   --> src/cap_3.rs:33:12
[INFO] [stdout]    |
[INFO] [stdout] 33 |     static X: AtomicI32 = AtomicI32::new(0);
[INFO] [stdout]    |            ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static `Y` is never used
[INFO] [stdout]   --> src/cap_3.rs:34:12
[INFO] [stdout]    |
[INFO] [stdout] 34 |     static Y: AtomicI32 = AtomicI32::new(0);
[INFO] [stdout]    |            ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]   --> src/cap_3.rs:36:12
[INFO] [stdout]    |
[INFO] [stdout] 36 |     pub fn main() {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static `DATA` is never used
[INFO] [stdout]   --> src/cap_3.rs:65:12
[INFO] [stdout]    |
[INFO] [stdout] 65 |     static DATA: AtomicU64 = AtomicU64::new(0);
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static `READY` is never used
[INFO] [stdout]   --> src/cap_3.rs:66:12
[INFO] [stdout]    |
[INFO] [stdout] 66 |     static READY: AtomicBool = AtomicBool::new(false);
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]   --> src/cap_3.rs:68:12
[INFO] [stdout]    |
[INFO] [stdout] 68 |     pub fn main() {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static `DATA` is never used
[INFO] [stdout]   --> src/cap_3.rs:85:16
[INFO] [stdout]    |
[INFO] [stdout] 85 |     static mut DATA: u64 = 0;
[INFO] [stdout]    |                ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static `READY` is never used
[INFO] [stdout]   --> src/cap_3.rs:86:12
[INFO] [stdout]    |
[INFO] [stdout] 86 |     static READY: AtomicBool = AtomicBool::new(false);
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]   --> src/cap_3.rs:88:19
[INFO] [stdout]    |
[INFO] [stdout] 88 |     pub(crate) fn main() {
[INFO] [stdout]    |                   ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `f` is never used
[INFO] [stdout]  --> src/cap_1.rs:5:4
[INFO] [stdout]   |
[INFO] [stdout] 5 | fn f() {
[INFO] [stdout]   |    ^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static `V1` is never used
[INFO] [stdout]    --> src/cap_3.rs:109:12
[INFO] [stdout]     |
[INFO] [stdout] 109 |     static V1: AtomicBool = AtomicBool::new(false);
[INFO] [stdout]     |            ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run_without_knowing_if_completed` is never used
[INFO] [stdout]  --> src/cap_1.rs:9:4
[INFO] [stdout]   |
[INFO] [stdout] 9 | fn run_without_knowing_if_completed() {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static `V2` is never used
[INFO] [stdout]    --> src/cap_3.rs:110:12
[INFO] [stdout]     |
[INFO] [stdout] 110 |     static V2: AtomicBool = AtomicBool::new(false);
[INFO] [stdout]     |            ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run_checking_if_completed` is never used
[INFO] [stdout]   --> src/cap_1.rs:16:4
[INFO] [stdout]    |
[INFO] [stdout] 16 | fn run_checking_if_completed() {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static `V3` is never used
[INFO] [stdout]    --> src/cap_3.rs:111:12
[INFO] [stdout]     |
[INFO] [stdout] 111 |     static V3: AtomicBool = AtomicBool::new(false);
[INFO] [stdout]     |            ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `better_join` is never used
[INFO] [stdout]   --> src/cap_1.rs:24:4
[INFO] [stdout]    |
[INFO] [stdout] 24 | fn better_join() {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static `DONE` is never used
[INFO] [stdout]    --> src/cap_3.rs:112:12
[INFO] [stdout]     |
[INFO] [stdout] 112 |     static DONE: AtomicBool = AtomicBool::new(false);
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]    --> src/cap_3.rs:114:12
[INFO] [stdout]     |
[INFO] [stdout] 114 |     pub fn main() {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `calc_sum` is never used
[INFO] [stdout]   --> src/cap_1.rs:35:10
[INFO] [stdout]    |
[INFO] [stdout] 35 | const fn calc_sum(v: &[usize]) -> usize {
[INFO] [stdout]    |          ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static `DATA` is never used
[INFO] [stdout]    --> src/cap_3.rs:149:16
[INFO] [stdout]     |
[INFO] [stdout] 149 |     static mut DATA: String = String::new();
[INFO] [stdout]     |                ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `calc_max` is never used
[INFO] [stdout]   --> src/cap_1.rs:47:10
[INFO] [stdout]    |
[INFO] [stdout] 47 | const fn calc_max(v: &[usize]) -> usize {
[INFO] [stdout]    |          ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static `LOCKED` is never used
[INFO] [stdout]    --> src/cap_3.rs:150:12
[INFO] [stdout]     |
[INFO] [stdout] 150 |     static LOCKED: AtomicBool = AtomicBool::new(false);
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `double_calculation` is never used
[INFO] [stdout]   --> src/cap_1.rs:60:4
[INFO] [stdout]    |
[INFO] [stdout] 60 | fn double_calculation() {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `f` is never used
[INFO] [stdout]    --> src/cap_3.rs:152:8
[INFO] [stdout]     |
[INFO] [stdout] 152 |     fn f() {
[INFO] [stdout]     |        ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `double_arc_calculation` is never used
[INFO] [stdout]   --> src/cap_1.rs:71:4
[INFO] [stdout]    |
[INFO] [stdout] 71 | fn double_arc_calculation() {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]    --> src/cap_3.rs:162:12
[INFO] [stdout]     |
[INFO] [stdout] 162 |     pub fn main() {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `cell_mutability` is never used
[INFO] [stdout]   --> src/cap_1.rs:82:4
[INFO] [stdout]    |
[INFO] [stdout] 82 | fn cell_mutability() {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]   --> src/cap_1.rs:99:4
[INFO] [stdout]    |
[INFO] [stdout] 99 | fn main() {
[INFO] [stdout]    |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Data` is never constructed
[INFO] [stdout]    --> src/cap_3.rs:178:12
[INFO] [stdout]     |
[INFO] [stdout] 178 |     struct Data;
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `generate_data` is never used
[INFO] [stdout]    --> src/cap_3.rs:179:8
[INFO] [stdout]     |
[INFO] [stdout] 179 |     fn generate_data() -> Data {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]    --> src/cap_2.rs:225:8
[INFO] [stdout]     |
[INFO] [stdout] 225 | pub fn main() {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_data` is never used
[INFO] [stdout]    --> src/cap_3.rs:182:8
[INFO] [stdout]     |
[INFO] [stdout] 182 |     fn get_data() -> &'static Data {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]  --> src/cap_2.rs:6:19
[INFO] [stdout]   |
[INFO] [stdout] 6 |     pub(super) fn main() {
[INFO] [stdout]   |                   ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]   --> src/cap_4.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub fn main() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `some_work` is never used
[INFO] [stdout]   --> src/cap_2.rs:25:8
[INFO] [stdout]    |
[INFO] [stdout] 25 |     fn some_work() {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `process_item` is never used
[INFO] [stdout]   --> src/cap_2.rs:36:8
[INFO] [stdout]    |
[INFO] [stdout] 36 |     fn process_item(_i: usize) {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `lock`, and `unlock` are never used
[INFO] [stdout]   --> src/cap_4.rs:32:18
[INFO] [stdout]    |
[INFO] [stdout] 31 | impl<T> SpinLock<T> {
[INFO] [stdout]    | ------------------- associated items in this implementation
[INFO] [stdout] 32 |     pub const fn new(value: T) -> Self {
[INFO] [stdout]    |                  ^^^
[INFO] [stdout] ...
[INFO] [stdout] 39 |     pub fn lock(&self) -> Guard<T> {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 46 |     pub fn unlock(&self) {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]   --> src/cap_2.rs:40:12
[INFO] [stdout]    |
[INFO] [stdout] 40 |     pub fn main() {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `with_sync` is never used
[INFO] [stdout]   --> src/cap_2.rs:64:12
[INFO] [stdout]    |
[INFO] [stdout] 64 |     pub fn with_sync() {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `calculate_x` is never used
[INFO] [stdout]   --> src/cap_2.rs:94:8
[INFO] [stdout]    |
[INFO] [stdout] 94 |     fn calculate_x() -> u64 {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Channel` is never constructed
[INFO] [stdout]   --> src/cap_5.rs:11:16
[INFO] [stdout]    |
[INFO] [stdout] 11 |     pub struct Channel<T> {
[INFO] [stdout]    |                ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_x` is never used
[INFO] [stdout]   --> src/cap_2.rs:97:12
[INFO] [stdout]    |
[INFO] [stdout] 97 |     pub fn get_x() -> u64 {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `process_item` is never used
[INFO] [stdout]    --> src/cap_2.rs:114:8
[INFO] [stdout]     |
[INFO] [stdout] 114 |     fn process_item(_v: i32) {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `send`, and `receive` are never used
[INFO] [stdout]   --> src/cap_5.rs:17:16
[INFO] [stdout]    |
[INFO] [stdout] 16 |     impl<T> Channel<T> {
[INFO] [stdout]    |     ------------------ associated items in this implementation
[INFO] [stdout] 17 |         pub fn new() -> Self {
[INFO] [stdout]    |                ^^^
[INFO] [stdout] ...
[INFO] [stdout] 24 |         fn send(&self, message: T) {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 29 |         fn receive(&self) -> T {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]    --> src/cap_2.rs:117:12
[INFO] [stdout]     |
[INFO] [stdout] 117 |     pub fn main() {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `process_item` is never used
[INFO] [stdout]    --> src/cap_2.rs:147:8
[INFO] [stdout]     |
[INFO] [stdout] 147 |     fn process_item(_i: i32) {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Channel` is never constructed
[INFO] [stdout]   --> src/cap_5.rs:51:16
[INFO] [stdout]    |
[INFO] [stdout] 51 |     pub struct Channel<T> {
[INFO] [stdout]    |                ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]    --> src/cap_2.rs:150:12
[INFO] [stdout]     |
[INFO] [stdout] 150 |     pub fn main() {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `allocate_new_id` is never used
[INFO] [stdout]    --> src/cap_2.rs:194:12
[INFO] [stdout]     |
[INFO] [stdout] 194 |     pub fn allocate_new_id() -> u32 {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `send`, `is_ready`, and `receive` are never used
[INFO] [stdout]   --> src/cap_5.rs:58:22
[INFO] [stdout]    |
[INFO] [stdout] 57 |     impl<T> Channel<T> {
[INFO] [stdout]    |     ------------------ associated items in this implementation
[INFO] [stdout] 58 |         pub const fn new() -> Self {
[INFO] [stdout]    |                      ^^^
[INFO] [stdout] ...
[INFO] [stdout] 65 |         pub unsafe fn send(&self, message: T) {
[INFO] [stdout]    |                       ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 71 |         pub fn is_ready(&self) -> bool {
[INFO] [stdout]    |                ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 77 |         pub unsafe fn receive(&self) -> T {
[INFO] [stdout]    |                       ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `generate_random_key` is never used
[INFO] [stdout]    --> src/cap_2.rs:208:8
[INFO] [stdout]     |
[INFO] [stdout] 208 |     fn generate_random_key() -> u64 {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `in_use` is never read
[INFO] [stdout]   --> src/cap_5.rs:94:9
[INFO] [stdout]    |
[INFO] [stdout] 91 |     pub struct Channel<T> {
[INFO] [stdout]    |                ------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 94 |         in_use: AtomicBool,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_key` is never used
[INFO] [stdout]    --> src/cap_2.rs:211:12
[INFO] [stdout]     |
[INFO] [stdout] 211 |     pub fn get_key() -> u64 {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]    --> src/cap_3.rs:204:8
[INFO] [stdout]     |
[INFO] [stdout] 204 | pub fn main() {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `send`, `is_ready`, and `receive` are never used
[INFO] [stdout]    --> src/cap_5.rs:99:22
[INFO] [stdout]     |
[INFO] [stdout] 98  |     impl<T> Channel<T> {
[INFO] [stdout]     |     ------------------ associated items in this implementation
[INFO] [stdout] 99  |         pub const fn new() -> Self {
[INFO] [stdout]     |                      ^^^
[INFO] [stdout] ...
[INFO] [stdout] 108 |         pub fn send(&self, message: T) {
[INFO] [stdout]     |                ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 116 |         pub fn is_ready(&self) -> bool {
[INFO] [stdout]     |                ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 124 |         pub fn receive(&self) -> T {
[INFO] [stdout]     |                ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static `X` is never used
[INFO] [stdout]  --> src/cap_3.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 |     static X: AtomicI32 = AtomicI32::new(0);
[INFO] [stdout]   |            ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]    --> src/cap_5.rs:140:12
[INFO] [stdout]     |
[INFO] [stdout] 140 |     pub fn main() {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]  --> src/cap_3.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 |     pub fn main() {
[INFO] [stdout]   |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static `X` is never used
[INFO] [stdout]   --> src/cap_3.rs:33:12
[INFO] [stdout]    |
[INFO] [stdout] 33 |     static X: AtomicI32 = AtomicI32::new(0);
[INFO] [stdout]    |            ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `EMPTY` is never used
[INFO] [stdout]    --> src/cap_5.rs:161:11
[INFO] [stdout]     |
[INFO] [stdout] 161 |     const EMPTY: u8 = 0;
[INFO] [stdout]     |           ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `WRITING` is never used
[INFO] [stdout]    --> src/cap_5.rs:162:11
[INFO] [stdout]     |
[INFO] [stdout] 162 |     const WRITING: u8 = 1;
[INFO] [stdout]     |           ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static `Y` is never used
[INFO] [stdout]   --> src/cap_3.rs:34:12
[INFO] [stdout]    |
[INFO] [stdout] 34 |     static Y: AtomicI32 = AtomicI32::new(0);
[INFO] [stdout]    |            ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `READING` is never used
[INFO] [stdout]    --> src/cap_5.rs:164:11
[INFO] [stdout]     |
[INFO] [stdout] 164 |     const READING: u8 = 3;
[INFO] [stdout]     |           ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]   --> src/cap_3.rs:36:12
[INFO] [stdout]    |
[INFO] [stdout] 36 |     pub fn main() {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static `DATA` is never used
[INFO] [stdout]   --> src/cap_3.rs:65:12
[INFO] [stdout]    |
[INFO] [stdout] 65 |     static DATA: AtomicU64 = AtomicU64::new(0);
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static `READY` is never used
[INFO] [stdout]   --> src/cap_3.rs:66:12
[INFO] [stdout]    |
[INFO] [stdout] 66 |     static READY: AtomicBool = AtomicBool::new(false);
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `send`, `is_ready`, and `receive` are never used
[INFO] [stdout]    --> src/cap_5.rs:179:22
[INFO] [stdout]     |
[INFO] [stdout] 178 |     impl<T> Channel<T> {
[INFO] [stdout]     |     ------------------ associated items in this implementation
[INFO] [stdout] 179 |         pub const fn new() -> Self {
[INFO] [stdout]     |                      ^^^
[INFO] [stdout] ...
[INFO] [stdout] 187 |         pub fn send(&self, message: T) {
[INFO] [stdout]     |                ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 199 |         pub fn is_ready(&self) -> bool {
[INFO] [stdout]     |                ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 207 |         pub fn receive(&self) -> T {
[INFO] [stdout]     |                ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]   --> src/cap_3.rs:68:12
[INFO] [stdout]    |
[INFO] [stdout] 68 |     pub fn main() {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `channel` is never used
[INFO] [stdout]    --> src/cap_5.rs:238:12
[INFO] [stdout]     |
[INFO] [stdout] 238 |     pub fn channel<T>() -> (Sender<T>, Receiver<T>) {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static `DATA` is never used
[INFO] [stdout]   --> src/cap_3.rs:85:16
[INFO] [stdout]    |
[INFO] [stdout] 85 |     static mut DATA: u64 = 0;
[INFO] [stdout]    |                ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Sender` is never constructed
[INFO] [stdout]    --> src/cap_5.rs:247:16
[INFO] [stdout]     |
[INFO] [stdout] 247 |     pub struct Sender<T> {
[INFO] [stdout]     |                ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static `READY` is never used
[INFO] [stdout]   --> src/cap_3.rs:86:12
[INFO] [stdout]    |
[INFO] [stdout] 86 |     static READY: AtomicBool = AtomicBool::new(false);
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Receiver` is never constructed
[INFO] [stdout]    --> src/cap_5.rs:250:16
[INFO] [stdout]     |
[INFO] [stdout] 250 |     pub struct Receiver<T> {
[INFO] [stdout]     |                ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]   --> src/cap_3.rs:88:19
[INFO] [stdout]    |
[INFO] [stdout] 88 |     pub(crate) fn main() {
[INFO] [stdout]    |                   ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Channel` is never constructed
[INFO] [stdout]    --> src/cap_5.rs:253:12
[INFO] [stdout]     |
[INFO] [stdout] 253 |     struct Channel<T> {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static `V1` is never used
[INFO] [stdout]    --> src/cap_3.rs:109:12
[INFO] [stdout]     |
[INFO] [stdout] 109 |     static V1: AtomicBool = AtomicBool::new(false);
[INFO] [stdout]     |            ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `send` is never used
[INFO] [stdout]    --> src/cap_5.rs:261:16
[INFO] [stdout]     |
[INFO] [stdout] 260 |     impl<T> Sender<T> {
[INFO] [stdout]     |     ----------------- method in this implementation
[INFO] [stdout] 261 |         pub fn send(self, message: T) {
[INFO] [stdout]     |                ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static `V2` is never used
[INFO] [stdout]    --> src/cap_3.rs:110:12
[INFO] [stdout]     |
[INFO] [stdout] 110 |     static V2: AtomicBool = AtomicBool::new(false);
[INFO] [stdout]     |            ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `is_ready` and `receive` are never used
[INFO] [stdout]    --> src/cap_5.rs:267:16
[INFO] [stdout]     |
[INFO] [stdout] 266 |     impl<T> Receiver<T> {
[INFO] [stdout]     |     ------------------- methods in this implementation
[INFO] [stdout] 267 |         pub fn is_ready(&self) -> bool {
[INFO] [stdout]     |                ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 270 |         pub fn receive(self) -> T {
[INFO] [stdout]     |                ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static `V3` is never used
[INFO] [stdout]    --> src/cap_3.rs:111:12
[INFO] [stdout]     |
[INFO] [stdout] 111 |     static V3: AtomicBool = AtomicBool::new(false);
[INFO] [stdout]     |            ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static `DONE` is never used
[INFO] [stdout]    --> src/cap_3.rs:112:12
[INFO] [stdout]     |
[INFO] [stdout] 112 |     static DONE: AtomicBool = AtomicBool::new(false);
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]    --> src/cap_5.rs:286:12
[INFO] [stdout]     |
[INFO] [stdout] 286 |     pub fn main() {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]    --> src/cap_3.rs:114:12
[INFO] [stdout]     |
[INFO] [stdout] 114 |     pub fn main() {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Sender` is never constructed
[INFO] [stdout]    --> src/cap_5.rs:310:16
[INFO] [stdout]     |
[INFO] [stdout] 310 |     pub struct Sender<'a, T> {
[INFO] [stdout]     |                ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static `DATA` is never used
[INFO] [stdout]    --> src/cap_3.rs:149:16
[INFO] [stdout]     |
[INFO] [stdout] 149 |     static mut DATA: String = String::new();
[INFO] [stdout]     |                ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Receiver` is never constructed
[INFO] [stdout]    --> src/cap_5.rs:313:16
[INFO] [stdout]     |
[INFO] [stdout] 313 |     pub struct Receiver<'a, T> {
[INFO] [stdout]     |                ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Channel` is never constructed
[INFO] [stdout]    --> src/cap_5.rs:316:12
[INFO] [stdout]     |
[INFO] [stdout] 316 |     struct Channel<T> {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static `LOCKED` is never used
[INFO] [stdout]    --> src/cap_3.rs:150:12
[INFO] [stdout]     |
[INFO] [stdout] 150 |     static LOCKED: AtomicBool = AtomicBool::new(false);
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `f` is never used
[INFO] [stdout]    --> src/cap_3.rs:152:8
[INFO] [stdout]     |
[INFO] [stdout] 152 |     fn f() {
[INFO] [stdout]     |        ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `split` are never used
[INFO] [stdout]    --> src/cap_5.rs:324:22
[INFO] [stdout]     |
[INFO] [stdout] 323 |     impl<T> Channel<T> {
[INFO] [stdout]     |     ------------------ associated items in this implementation
[INFO] [stdout] 324 |         pub const fn new() -> Self {
[INFO] [stdout]     |                      ^^^
[INFO] [stdout] ...
[INFO] [stdout] 331 |         pub fn split<'a>(&'a mut self) -> (Sender<'a, T>, Receiver<'a, T>) {
[INFO] [stdout]     |                ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `send` is never used
[INFO] [stdout]    --> src/cap_5.rs:338:16
[INFO] [stdout]     |
[INFO] [stdout] 337 |     impl<T> Sender<'_, T> {
[INFO] [stdout]     |     --------------------- method in this implementation
[INFO] [stdout] 338 |         pub fn send(self, message: T) {
[INFO] [stdout]     |                ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]    --> src/cap_3.rs:162:12
[INFO] [stdout]     |
[INFO] [stdout] 162 |     pub fn main() {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `is_ready` and `receive` are never used
[INFO] [stdout]    --> src/cap_5.rs:344:16
[INFO] [stdout]     |
[INFO] [stdout] 343 |     impl<T> Receiver<'_, T> {
[INFO] [stdout]     |     ----------------------- methods in this implementation
[INFO] [stdout] 344 |         pub fn is_ready(&self) -> bool {
[INFO] [stdout]     |                ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 347 |         pub fn receive(self) -> T {
[INFO] [stdout]     |                ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Data` is never constructed
[INFO] [stdout]    --> src/cap_3.rs:178:12
[INFO] [stdout]     |
[INFO] [stdout] 178 |     struct Data;
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]    --> src/cap_5.rs:363:12
[INFO] [stdout]     |
[INFO] [stdout] 363 |     pub fn main() {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `generate_data` is never used
[INFO] [stdout]    --> src/cap_3.rs:179:8
[INFO] [stdout]     |
[INFO] [stdout] 179 |     fn generate_data() -> Data {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `use_condvar` is never used
[INFO] [stdout]  --> src/condition_variables.rs:6:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub fn use_condvar() {
[INFO] [stdout]   |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_data` is never used
[INFO] [stdout]    --> src/cap_3.rs:182:8
[INFO] [stdout]     |
[INFO] [stdout] 182 |     fn get_data() -> &'static Data {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]   --> src/cap_4.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub fn main() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `lock`, and `unlock` are never used
[INFO] [stdout]   --> src/cap_4.rs:32:18
[INFO] [stdout]    |
[INFO] [stdout] 31 | impl<T> SpinLock<T> {
[INFO] [stdout]    | ------------------- associated items in this implementation
[INFO] [stdout] 32 |     pub const fn new(value: T) -> Self {
[INFO] [stdout]    |                  ^^^
[INFO] [stdout] ...
[INFO] [stdout] 39 |     pub fn lock(&self) -> Guard<T> {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 46 |     pub fn unlock(&self) {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `example` is never used
[INFO] [stdout]  --> src/parking.rs:9:8
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub fn example() {
[INFO] [stdout]   |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Channel` is never constructed
[INFO] [stdout]   --> src/cap_5.rs:11:16
[INFO] [stdout]    |
[INFO] [stdout] 11 |     pub struct Channel<T> {
[INFO] [stdout]    |                ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `send`, and `receive` are never used
[INFO] [stdout]   --> src/cap_5.rs:17:16
[INFO] [stdout]    |
[INFO] [stdout] 16 |     impl<T> Channel<T> {
[INFO] [stdout]    |     ------------------ associated items in this implementation
[INFO] [stdout] 17 |         pub fn new() -> Self {
[INFO] [stdout]    |                ^^^
[INFO] [stdout] ...
[INFO] [stdout] 24 |         fn send(&self, message: T) {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 29 |         fn receive(&self) -> T {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Channel` is never constructed
[INFO] [stdout]   --> src/cap_5.rs:51:16
[INFO] [stdout]    |
[INFO] [stdout] 51 |     pub struct Channel<T> {
[INFO] [stdout]    |                ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `send`, `is_ready`, and `receive` are never used
[INFO] [stdout]   --> src/cap_5.rs:58:22
[INFO] [stdout]    |
[INFO] [stdout] 57 |     impl<T> Channel<T> {
[INFO] [stdout]    |     ------------------ associated items in this implementation
[INFO] [stdout] 58 |         pub const fn new() -> Self {
[INFO] [stdout]    |                      ^^^
[INFO] [stdout] ...
[INFO] [stdout] 65 |         pub unsafe fn send(&self, message: T) {
[INFO] [stdout]    |                       ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 71 |         pub fn is_ready(&self) -> bool {
[INFO] [stdout]    |                ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 77 |         pub unsafe fn receive(&self) -> T {
[INFO] [stdout]    |                       ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `in_use` is never read
[INFO] [stdout]   --> src/cap_5.rs:94:9
[INFO] [stdout]    |
[INFO] [stdout] 91 |     pub struct Channel<T> {
[INFO] [stdout]    |                ------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 94 |         in_use: AtomicBool,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `send`, `is_ready`, and `receive` are never used
[INFO] [stdout]    --> src/cap_5.rs:99:22
[INFO] [stdout]     |
[INFO] [stdout] 98  |     impl<T> Channel<T> {
[INFO] [stdout]     |     ------------------ associated items in this implementation
[INFO] [stdout] 99  |         pub const fn new() -> Self {
[INFO] [stdout]     |                      ^^^
[INFO] [stdout] ...
[INFO] [stdout] 108 |         pub fn send(&self, message: T) {
[INFO] [stdout]     |                ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 116 |         pub fn is_ready(&self) -> bool {
[INFO] [stdout]     |                ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 124 |         pub fn receive(&self) -> T {
[INFO] [stdout]     |                ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]    --> src/cap_5.rs:140:12
[INFO] [stdout]     |
[INFO] [stdout] 140 |     pub fn main() {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `EMPTY` is never used
[INFO] [stdout]    --> src/cap_5.rs:161:11
[INFO] [stdout]     |
[INFO] [stdout] 161 |     const EMPTY: u8 = 0;
[INFO] [stdout]     |           ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `WRITING` is never used
[INFO] [stdout]    --> src/cap_5.rs:162:11
[INFO] [stdout]     |
[INFO] [stdout] 162 |     const WRITING: u8 = 1;
[INFO] [stdout]     |           ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `READING` is never used
[INFO] [stdout]    --> src/cap_5.rs:164:11
[INFO] [stdout]     |
[INFO] [stdout] 164 |     const READING: u8 = 3;
[INFO] [stdout]     |           ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `send`, `is_ready`, and `receive` are never used
[INFO] [stdout]    --> src/cap_5.rs:179:22
[INFO] [stdout]     |
[INFO] [stdout] 178 |     impl<T> Channel<T> {
[INFO] [stdout]     |     ------------------ associated items in this implementation
[INFO] [stdout] 179 |         pub const fn new() -> Self {
[INFO] [stdout]     |                      ^^^
[INFO] [stdout] ...
[INFO] [stdout] 187 |         pub fn send(&self, message: T) {
[INFO] [stdout]     |                ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 199 |         pub fn is_ready(&self) -> bool {
[INFO] [stdout]     |                ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 207 |         pub fn receive(&self) -> T {
[INFO] [stdout]     |                ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `channel` is never used
[INFO] [stdout]    --> src/cap_5.rs:238:12
[INFO] [stdout]     |
[INFO] [stdout] 238 |     pub fn channel<T>() -> (Sender<T>, Receiver<T>) {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Sender` is never constructed
[INFO] [stdout]    --> src/cap_5.rs:247:16
[INFO] [stdout]     |
[INFO] [stdout] 247 |     pub struct Sender<T> {
[INFO] [stdout]     |                ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Receiver` is never constructed
[INFO] [stdout]    --> src/cap_5.rs:250:16
[INFO] [stdout]     |
[INFO] [stdout] 250 |     pub struct Receiver<T> {
[INFO] [stdout]     |                ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Channel` is never constructed
[INFO] [stdout]    --> src/cap_5.rs:253:12
[INFO] [stdout]     |
[INFO] [stdout] 253 |     struct Channel<T> {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `send` is never used
[INFO] [stdout]    --> src/cap_5.rs:261:16
[INFO] [stdout]     |
[INFO] [stdout] 260 |     impl<T> Sender<T> {
[INFO] [stdout]     |     ----------------- method in this implementation
[INFO] [stdout] 261 |         pub fn send(self, message: T) {
[INFO] [stdout]     |                ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `is_ready` and `receive` are never used
[INFO] [stdout]    --> src/cap_5.rs:267:16
[INFO] [stdout]     |
[INFO] [stdout] 266 |     impl<T> Receiver<T> {
[INFO] [stdout]     |     ------------------- methods in this implementation
[INFO] [stdout] 267 |         pub fn is_ready(&self) -> bool {
[INFO] [stdout]     |                ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 270 |         pub fn receive(self) -> T {
[INFO] [stdout]     |                ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]    --> src/cap_5.rs:286:12
[INFO] [stdout]     |
[INFO] [stdout] 286 |     pub fn main() {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Sender` is never constructed
[INFO] [stdout]    --> src/cap_5.rs:310:16
[INFO] [stdout]     |
[INFO] [stdout] 310 |     pub struct Sender<'a, T> {
[INFO] [stdout]     |                ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Receiver` is never constructed
[INFO] [stdout]    --> src/cap_5.rs:313:16
[INFO] [stdout]     |
[INFO] [stdout] 313 |     pub struct Receiver<'a, T> {
[INFO] [stdout]     |                ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Channel` is never constructed
[INFO] [stdout]    --> src/cap_5.rs:316:12
[INFO] [stdout]     |
[INFO] [stdout] 316 |     struct Channel<T> {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `split` are never used
[INFO] [stdout]    --> src/cap_5.rs:324:22
[INFO] [stdout]     |
[INFO] [stdout] 323 |     impl<T> Channel<T> {
[INFO] [stdout]     |     ------------------ associated items in this implementation
[INFO] [stdout] 324 |         pub const fn new() -> Self {
[INFO] [stdout]     |                      ^^^
[INFO] [stdout] ...
[INFO] [stdout] 331 |         pub fn split<'a>(&'a mut self) -> (Sender<'a, T>, Receiver<'a, T>) {
[INFO] [stdout]     |                ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `send` is never used
[INFO] [stdout]    --> src/cap_5.rs:338:16
[INFO] [stdout]     |
[INFO] [stdout] 337 |     impl<T> Sender<'_, T> {
[INFO] [stdout]     |     --------------------- method in this implementation
[INFO] [stdout] 338 |         pub fn send(self, message: T) {
[INFO] [stdout]     |                ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `is_ready` and `receive` are never used
[INFO] [stdout]    --> src/cap_5.rs:344:16
[INFO] [stdout]     |
[INFO] [stdout] 343 |     impl<T> Receiver<'_, T> {
[INFO] [stdout]     |     ----------------------- methods in this implementation
[INFO] [stdout] 344 |         pub fn is_ready(&self) -> bool {
[INFO] [stdout]     |                ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 347 |         pub fn receive(self) -> T {
[INFO] [stdout]     |                ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]    --> src/cap_5.rs:363:12
[INFO] [stdout]     |
[INFO] [stdout] 363 |     pub fn main() {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `use_condvar` is never used
[INFO] [stdout]  --> src/condition_variables.rs:6:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub fn use_condvar() {
[INFO] [stdout]   |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `example` is never used
[INFO] [stdout]  --> src/parking.rs:9:8
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub fn example() {
[INFO] [stdout]   |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 85 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 85 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.13s
[INFO] running `Command { std: "docker" "inspect" "0b8950935e9df2365ff9c17c153b5609e996597fc0aec48044393a776b40ae64", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0b8950935e9df2365ff9c17c153b5609e996597fc0aec48044393a776b40ae64", kill_on_drop: false }`
[INFO] [stdout] 0b8950935e9df2365ff9c17c153b5609e996597fc0aec48044393a776b40ae64
[INFO] checking sibarras/atomics_and_locks against try#f9935d29d867449445ee008640ccca1bf1ae0889+rustflags=-Dtail_expr_drop_order for crater-rollup-uwu
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsibarras%2Fatomics_and_locks" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/sibarras/atomics_and_locks on toolchain f9935d29d867449445ee008640ccca1bf1ae0889
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f9935d29d867449445ee008640ccca1bf1ae0889" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/sibarras/atomics_and_locks
[INFO] finished tweaking git repo https://github.com/sibarras/atomics_and_locks
[INFO] tweaked toml for git repo https://github.com/sibarras/atomics_and_locks written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/sibarras/atomics_and_locks 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" "+f9935d29d867449445ee008640ccca1bf1ae0889" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+f9935d29d867449445ee008640ccca1bf1ae0889" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 81b786856e69ec8eb828c4faa8a1fdb8b2b66673242dfc13bb308abe829cdd05
[INFO] running `Command { std: "docker" "start" "-a" "81b786856e69ec8eb828c4faa8a1fdb8b2b66673242dfc13bb308abe829cdd05", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "81b786856e69ec8eb828c4faa8a1fdb8b2b66673242dfc13bb308abe829cdd05", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "81b786856e69ec8eb828c4faa8a1fdb8b2b66673242dfc13bb308abe829cdd05", kill_on_drop: false }`
[INFO] [stdout] 81b786856e69ec8eb828c4faa8a1fdb8b2b66673242dfc13bb308abe829cdd05
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid -Dtail_expr_drop_order" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+f9935d29d867449445ee008640ccca1bf1ae0889" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3def18b988f6f119699e03ca9e59a3bee71ea1b63633e97027a551ac16f5faaf
[INFO] running `Command { std: "docker" "start" "-a" "3def18b988f6f119699e03ca9e59a3bee71ea1b63633e97027a551ac16f5faaf", kill_on_drop: false }`
[INFO] [stderr]     Checking atomics_and_locks v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `crate::condition_variables`
[INFO] [stdout]  --> src/cap_1.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::condition_variables;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::condition_variables`
[INFO] [stdout]  --> src/cap_1.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::condition_variables;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::sync::atomic::AtomicU64`
[INFO] [stdout]    --> src/cap_3.rs:104:9
[INFO] [stdout]     |
[INFO] [stdout] 104 |     use std::sync::atomic::AtomicU64;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::sync::atomic::AtomicU64`
[INFO] [stdout]    --> src/cap_3.rs:104:9
[INFO] [stdout]     |
[INFO] [stdout] 104 |     use std::sync::atomic::AtomicU64;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `time::Duration`
[INFO] [stdout]    --> src/cap_3.rs:107:41
[INFO] [stdout]     |
[INFO] [stdout] 107 |     use std::{sync::atomic::AtomicBool, time::Duration};
[INFO] [stdout]     |                                         ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::thread`
[INFO] [stdout]    --> src/cap_3.rs:176:9
[INFO] [stdout]     |
[INFO] [stdout] 176 |     use std::thread;
[INFO] [stdout]     |         ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `time::Duration`
[INFO] [stdout]    --> src/cap_3.rs:107:41
[INFO] [stdout]     |
[INFO] [stdout] 107 |     use std::{sync::atomic::AtomicBool, time::Duration};
[INFO] [stdout]     |                                         ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::thread`
[INFO] [stdout]  --> src/cap_5.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::thread;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::thread`
[INFO] [stdout]    --> src/cap_3.rs:176:9
[INFO] [stdout]     |
[INFO] [stdout] 176 |     use std::thread;
[INFO] [stdout]     |         ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]   --> src/cap_5.rs:30:13
[INFO] [stdout]    |
[INFO] [stdout] 30 |             ///! My comment
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^
[INFO] [stdout] 31 |             let mut b = self.queue.lock().unwrap();
[INFO] [stdout]    |             --------------------------------------- rustdoc does not generate documentation for statements
[INFO] [stdout]    |
[INFO] [stdout]    = help: use `//` for a plain comment
[INFO] [stdout]    = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::thread`
[INFO] [stdout]  --> src/cap_5.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::thread;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ops::BitAndAssign`
[INFO] [stdout]  --> src/parking.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     ops::BitAndAssign,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]   --> src/cap_5.rs:30:13
[INFO] [stdout]    |
[INFO] [stdout] 30 |             ///! My comment
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^
[INFO] [stdout] 31 |             let mut b = self.queue.lock().unwrap();
[INFO] [stdout]    |             --------------------------------------- rustdoc does not generate documentation for statements
[INFO] [stdout]    |
[INFO] [stdout]    = help: use `//` for a plain comment
[INFO] [stdout]    = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ops::BitAndAssign`
[INFO] [stdout]  --> src/parking.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     ops::BitAndAssign,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `f` is never used
[INFO] [stdout]  --> src/cap_1.rs:5:4
[INFO] [stdout]   |
[INFO] [stdout] 5 | fn f() {
[INFO] [stdout]   |    ^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run_without_knowing_if_completed` is never used
[INFO] [stdout]  --> src/cap_1.rs:9:4
[INFO] [stdout]   |
[INFO] [stdout] 9 | fn run_without_knowing_if_completed() {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run_checking_if_completed` is never used
[INFO] [stdout]   --> src/cap_1.rs:16:4
[INFO] [stdout]    |
[INFO] [stdout] 16 | fn run_checking_if_completed() {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `better_join` is never used
[INFO] [stdout]   --> src/cap_1.rs:24:4
[INFO] [stdout]    |
[INFO] [stdout] 24 | fn better_join() {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `calc_sum` is never used
[INFO] [stdout]   --> src/cap_1.rs:35:10
[INFO] [stdout]    |
[INFO] [stdout] 35 | const fn calc_sum(v: &[usize]) -> usize {
[INFO] [stdout]    |          ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `calc_max` is never used
[INFO] [stdout]   --> src/cap_1.rs:47:10
[INFO] [stdout]    |
[INFO] [stdout] 47 | const fn calc_max(v: &[usize]) -> usize {
[INFO] [stdout]    |          ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `double_calculation` is never used
[INFO] [stdout]   --> src/cap_1.rs:60:4
[INFO] [stdout]    |
[INFO] [stdout] 60 | fn double_calculation() {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `double_arc_calculation` is never used
[INFO] [stdout]   --> src/cap_1.rs:71:4
[INFO] [stdout]    |
[INFO] [stdout] 71 | fn double_arc_calculation() {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `cell_mutability` is never used
[INFO] [stdout]   --> src/cap_1.rs:82:4
[INFO] [stdout]    |
[INFO] [stdout] 82 | fn cell_mutability() {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]   --> src/cap_1.rs:99:4
[INFO] [stdout]    |
[INFO] [stdout] 99 | fn main() {
[INFO] [stdout]    |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]    --> src/cap_2.rs:225:8
[INFO] [stdout]     |
[INFO] [stdout] 225 | pub fn main() {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]  --> src/cap_2.rs:6:19
[INFO] [stdout]   |
[INFO] [stdout] 6 |     pub(super) fn main() {
[INFO] [stdout]   |                   ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `some_work` is never used
[INFO] [stdout]   --> src/cap_2.rs:25:8
[INFO] [stdout]    |
[INFO] [stdout] 25 |     fn some_work() {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `process_item` is never used
[INFO] [stdout]   --> src/cap_2.rs:36:8
[INFO] [stdout]    |
[INFO] [stdout] 36 |     fn process_item(_i: usize) {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]   --> src/cap_2.rs:40:12
[INFO] [stdout]    |
[INFO] [stdout] 40 |     pub fn main() {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `with_sync` is never used
[INFO] [stdout]   --> src/cap_2.rs:64:12
[INFO] [stdout]    |
[INFO] [stdout] 64 |     pub fn with_sync() {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `calculate_x` is never used
[INFO] [stdout]   --> src/cap_2.rs:94:8
[INFO] [stdout]    |
[INFO] [stdout] 94 |     fn calculate_x() -> u64 {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_x` is never used
[INFO] [stdout]   --> src/cap_2.rs:97:12
[INFO] [stdout]    |
[INFO] [stdout] 97 |     pub fn get_x() -> u64 {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `process_item` is never used
[INFO] [stdout]    --> src/cap_2.rs:114:8
[INFO] [stdout]     |
[INFO] [stdout] 114 |     fn process_item(_v: i32) {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]    --> src/cap_2.rs:117:12
[INFO] [stdout]     |
[INFO] [stdout] 117 |     pub fn main() {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `process_item` is never used
[INFO] [stdout]    --> src/cap_2.rs:147:8
[INFO] [stdout]     |
[INFO] [stdout] 147 |     fn process_item(_i: i32) {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]    --> src/cap_2.rs:150:12
[INFO] [stdout]     |
[INFO] [stdout] 150 |     pub fn main() {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `allocate_new_id` is never used
[INFO] [stdout]    --> src/cap_2.rs:194:12
[INFO] [stdout]     |
[INFO] [stdout] 194 |     pub fn allocate_new_id() -> u32 {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `generate_random_key` is never used
[INFO] [stdout]    --> src/cap_2.rs:208:8
[INFO] [stdout]     |
[INFO] [stdout] 208 |     fn generate_random_key() -> u64 {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_key` is never used
[INFO] [stdout]    --> src/cap_2.rs:211:12
[INFO] [stdout]     |
[INFO] [stdout] 211 |     pub fn get_key() -> u64 {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]    --> src/cap_3.rs:204:8
[INFO] [stdout]     |
[INFO] [stdout] 204 | pub fn main() {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `f` is never used
[INFO] [stdout]  --> src/cap_1.rs:5:4
[INFO] [stdout]   |
[INFO] [stdout] 5 | fn f() {
[INFO] [stdout]   |    ^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static `X` is never used
[INFO] [stdout]  --> src/cap_3.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 |     static X: AtomicI32 = AtomicI32::new(0);
[INFO] [stdout]   |            ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run_without_knowing_if_completed` is never used
[INFO] [stdout]  --> src/cap_1.rs:9:4
[INFO] [stdout]   |
[INFO] [stdout] 9 | fn run_without_knowing_if_completed() {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]  --> src/cap_3.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 |     pub fn main() {
[INFO] [stdout]   |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run_checking_if_completed` is never used
[INFO] [stdout]   --> src/cap_1.rs:16:4
[INFO] [stdout]    |
[INFO] [stdout] 16 | fn run_checking_if_completed() {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `better_join` is never used
[INFO] [stdout]   --> src/cap_1.rs:24:4
[INFO] [stdout]    |
[INFO] [stdout] 24 | fn better_join() {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `calc_sum` is never used
[INFO] [stdout]   --> src/cap_1.rs:35:10
[INFO] [stdout]    |
[INFO] [stdout] 35 | const fn calc_sum(v: &[usize]) -> usize {
[INFO] [stdout]    |          ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static `X` is never used
[INFO] [stdout]   --> src/cap_3.rs:33:12
[INFO] [stdout]    |
[INFO] [stdout] 33 |     static X: AtomicI32 = AtomicI32::new(0);
[INFO] [stdout]    |            ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `calc_max` is never used
[INFO] [stdout]   --> src/cap_1.rs:47:10
[INFO] [stdout]    |
[INFO] [stdout] 47 | const fn calc_max(v: &[usize]) -> usize {
[INFO] [stdout]    |          ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static `Y` is never used
[INFO] [stdout]   --> src/cap_3.rs:34:12
[INFO] [stdout]    |
[INFO] [stdout] 34 |     static Y: AtomicI32 = AtomicI32::new(0);
[INFO] [stdout]    |            ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `double_calculation` is never used
[INFO] [stdout]   --> src/cap_1.rs:60:4
[INFO] [stdout]    |
[INFO] [stdout] 60 | fn double_calculation() {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]   --> src/cap_3.rs:36:12
[INFO] [stdout]    |
[INFO] [stdout] 36 |     pub fn main() {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `double_arc_calculation` is never used
[INFO] [stdout]   --> src/cap_1.rs:71:4
[INFO] [stdout]    |
[INFO] [stdout] 71 | fn double_arc_calculation() {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static `DATA` is never used
[INFO] [stdout]   --> src/cap_3.rs:65:12
[INFO] [stdout]    |
[INFO] [stdout] 65 |     static DATA: AtomicU64 = AtomicU64::new(0);
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `cell_mutability` is never used
[INFO] [stdout]   --> src/cap_1.rs:82:4
[INFO] [stdout]    |
[INFO] [stdout] 82 | fn cell_mutability() {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static `READY` is never used
[INFO] [stdout]   --> src/cap_3.rs:66:12
[INFO] [stdout]    |
[INFO] [stdout] 66 |     static READY: AtomicBool = AtomicBool::new(false);
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]   --> src/cap_1.rs:99:4
[INFO] [stdout]    |
[INFO] [stdout] 99 | fn main() {
[INFO] [stdout]    |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]   --> src/cap_3.rs:68:12
[INFO] [stdout]    |
[INFO] [stdout] 68 |     pub fn main() {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]    --> src/cap_2.rs:225:8
[INFO] [stdout]     |
[INFO] [stdout] 225 | pub fn main() {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static `DATA` is never used
[INFO] [stdout]   --> src/cap_3.rs:85:16
[INFO] [stdout]    |
[INFO] [stdout] 85 |     static mut DATA: u64 = 0;
[INFO] [stdout]    |                ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]  --> src/cap_2.rs:6:19
[INFO] [stdout]   |
[INFO] [stdout] 6 |     pub(super) fn main() {
[INFO] [stdout]   |                   ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static `READY` is never used
[INFO] [stdout]   --> src/cap_3.rs:86:12
[INFO] [stdout]    |
[INFO] [stdout] 86 |     static READY: AtomicBool = AtomicBool::new(false);
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]   --> src/cap_3.rs:88:19
[INFO] [stdout]    |
[INFO] [stdout] 88 |     pub(crate) fn main() {
[INFO] [stdout]    |                   ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static `V1` is never used
[INFO] [stdout]    --> src/cap_3.rs:109:12
[INFO] [stdout]     |
[INFO] [stdout] 109 |     static V1: AtomicBool = AtomicBool::new(false);
[INFO] [stdout]     |            ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `some_work` is never used
[INFO] [stdout]   --> src/cap_2.rs:25:8
[INFO] [stdout]    |
[INFO] [stdout] 25 |     fn some_work() {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static `V2` is never used
[INFO] [stdout]    --> src/cap_3.rs:110:12
[INFO] [stdout]     |
[INFO] [stdout] 110 |     static V2: AtomicBool = AtomicBool::new(false);
[INFO] [stdout]     |            ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `process_item` is never used
[INFO] [stdout]   --> src/cap_2.rs:36:8
[INFO] [stdout]    |
[INFO] [stdout] 36 |     fn process_item(_i: usize) {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static `V3` is never used
[INFO] [stdout]    --> src/cap_3.rs:111:12
[INFO] [stdout]     |
[INFO] [stdout] 111 |     static V3: AtomicBool = AtomicBool::new(false);
[INFO] [stdout]     |            ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]   --> src/cap_2.rs:40:12
[INFO] [stdout]    |
[INFO] [stdout] 40 |     pub fn main() {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static `DONE` is never used
[INFO] [stdout]    --> src/cap_3.rs:112:12
[INFO] [stdout]     |
[INFO] [stdout] 112 |     static DONE: AtomicBool = AtomicBool::new(false);
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `with_sync` is never used
[INFO] [stdout]   --> src/cap_2.rs:64:12
[INFO] [stdout]    |
[INFO] [stdout] 64 |     pub fn with_sync() {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]    --> src/cap_3.rs:114:12
[INFO] [stdout]     |
[INFO] [stdout] 114 |     pub fn main() {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `calculate_x` is never used
[INFO] [stdout]   --> src/cap_2.rs:94:8
[INFO] [stdout]    |
[INFO] [stdout] 94 |     fn calculate_x() -> u64 {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static `DATA` is never used
[INFO] [stdout]    --> src/cap_3.rs:149:16
[INFO] [stdout]     |
[INFO] [stdout] 149 |     static mut DATA: String = String::new();
[INFO] [stdout]     |                ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_x` is never used
[INFO] [stdout]   --> src/cap_2.rs:97:12
[INFO] [stdout]    |
[INFO] [stdout] 97 |     pub fn get_x() -> u64 {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static `LOCKED` is never used
[INFO] [stdout]    --> src/cap_3.rs:150:12
[INFO] [stdout]     |
[INFO] [stdout] 150 |     static LOCKED: AtomicBool = AtomicBool::new(false);
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `process_item` is never used
[INFO] [stdout]    --> src/cap_2.rs:114:8
[INFO] [stdout]     |
[INFO] [stdout] 114 |     fn process_item(_v: i32) {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `f` is never used
[INFO] [stdout]    --> src/cap_3.rs:152:8
[INFO] [stdout]     |
[INFO] [stdout] 152 |     fn f() {
[INFO] [stdout]     |        ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]    --> src/cap_2.rs:117:12
[INFO] [stdout]     |
[INFO] [stdout] 117 |     pub fn main() {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]    --> src/cap_3.rs:162:12
[INFO] [stdout]     |
[INFO] [stdout] 162 |     pub fn main() {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `process_item` is never used
[INFO] [stdout]    --> src/cap_2.rs:147:8
[INFO] [stdout]     |
[INFO] [stdout] 147 |     fn process_item(_i: i32) {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Data` is never constructed
[INFO] [stdout]    --> src/cap_3.rs:178:12
[INFO] [stdout]     |
[INFO] [stdout] 178 |     struct Data;
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]    --> src/cap_2.rs:150:12
[INFO] [stdout]     |
[INFO] [stdout] 150 |     pub fn main() {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `generate_data` is never used
[INFO] [stdout]    --> src/cap_3.rs:179:8
[INFO] [stdout]     |
[INFO] [stdout] 179 |     fn generate_data() -> Data {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `allocate_new_id` is never used
[INFO] [stdout]    --> src/cap_2.rs:194:12
[INFO] [stdout]     |
[INFO] [stdout] 194 |     pub fn allocate_new_id() -> u32 {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_data` is never used
[INFO] [stdout]    --> src/cap_3.rs:182:8
[INFO] [stdout]     |
[INFO] [stdout] 182 |     fn get_data() -> &'static Data {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `generate_random_key` is never used
[INFO] [stdout]    --> src/cap_2.rs:208:8
[INFO] [stdout]     |
[INFO] [stdout] 208 |     fn generate_random_key() -> u64 {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_key` is never used
[INFO] [stdout]    --> src/cap_2.rs:211:12
[INFO] [stdout]     |
[INFO] [stdout] 211 |     pub fn get_key() -> u64 {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]   --> src/cap_4.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub fn main() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]    --> src/cap_3.rs:204:8
[INFO] [stdout]     |
[INFO] [stdout] 204 | pub fn main() {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static `X` is never used
[INFO] [stdout]  --> src/cap_3.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 |     static X: AtomicI32 = AtomicI32::new(0);
[INFO] [stdout]   |            ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `lock`, and `unlock` are never used
[INFO] [stdout]   --> src/cap_4.rs:32:18
[INFO] [stdout]    |
[INFO] [stdout] 31 | impl<T> SpinLock<T> {
[INFO] [stdout]    | ------------------- associated items in this implementation
[INFO] [stdout] 32 |     pub const fn new(value: T) -> Self {
[INFO] [stdout]    |                  ^^^
[INFO] [stdout] ...
[INFO] [stdout] 39 |     pub fn lock(&self) -> Guard<T> {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 46 |     pub fn unlock(&self) {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]  --> src/cap_3.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 |     pub fn main() {
[INFO] [stdout]   |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Channel` is never constructed
[INFO] [stdout]   --> src/cap_5.rs:11:16
[INFO] [stdout]    |
[INFO] [stdout] 11 |     pub struct Channel<T> {
[INFO] [stdout]    |                ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static `X` is never used
[INFO] [stdout]   --> src/cap_3.rs:33:12
[INFO] [stdout]    |
[INFO] [stdout] 33 |     static X: AtomicI32 = AtomicI32::new(0);
[INFO] [stdout]    |            ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `send`, and `receive` are never used
[INFO] [stdout]   --> src/cap_5.rs:17:16
[INFO] [stdout]    |
[INFO] [stdout] 16 |     impl<T> Channel<T> {
[INFO] [stdout]    |     ------------------ associated items in this implementation
[INFO] [stdout] 17 |         pub fn new() -> Self {
[INFO] [stdout]    |                ^^^
[INFO] [stdout] ...
[INFO] [stdout] 24 |         fn send(&self, message: T) {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 29 |         fn receive(&self) -> T {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static `Y` is never used
[INFO] [stdout]   --> src/cap_3.rs:34:12
[INFO] [stdout]    |
[INFO] [stdout] 34 |     static Y: AtomicI32 = AtomicI32::new(0);
[INFO] [stdout]    |            ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Channel` is never constructed
[INFO] [stdout]   --> src/cap_5.rs:51:16
[INFO] [stdout]    |
[INFO] [stdout] 51 |     pub struct Channel<T> {
[INFO] [stdout]    |                ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]   --> src/cap_3.rs:36:12
[INFO] [stdout]    |
[INFO] [stdout] 36 |     pub fn main() {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static `DATA` is never used
[INFO] [stdout]   --> src/cap_3.rs:65:12
[INFO] [stdout]    |
[INFO] [stdout] 65 |     static DATA: AtomicU64 = AtomicU64::new(0);
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static `READY` is never used
[INFO] [stdout]   --> src/cap_3.rs:66:12
[INFO] [stdout]    |
[INFO] [stdout] 66 |     static READY: AtomicBool = AtomicBool::new(false);
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]   --> src/cap_3.rs:68:12
[INFO] [stdout]    |
[INFO] [stdout] 68 |     pub fn main() {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static `DATA` is never used
[INFO] [stdout]   --> src/cap_3.rs:85:16
[INFO] [stdout]    |
[INFO] [stdout] 85 |     static mut DATA: u64 = 0;
[INFO] [stdout]    |                ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `send`, `is_ready`, and `receive` are never used
[INFO] [stdout]   --> src/cap_5.rs:58:22
[INFO] [stdout]    |
[INFO] [stdout] 57 |     impl<T> Channel<T> {
[INFO] [stdout]    |     ------------------ associated items in this implementation
[INFO] [stdout] 58 |         pub const fn new() -> Self {
[INFO] [stdout]    |                      ^^^
[INFO] [stdout] ...
[INFO] [stdout] 65 |         pub unsafe fn send(&self, message: T) {
[INFO] [stdout]    |                       ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 71 |         pub fn is_ready(&self) -> bool {
[INFO] [stdout]    |                ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 77 |         pub unsafe fn receive(&self) -> T {
[INFO] [stdout]    |                       ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static `READY` is never used
[INFO] [stdout]   --> src/cap_3.rs:86:12
[INFO] [stdout]    |
[INFO] [stdout] 86 |     static READY: AtomicBool = AtomicBool::new(false);
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]   --> src/cap_3.rs:88:19
[INFO] [stdout]    |
[INFO] [stdout] 88 |     pub(crate) fn main() {
[INFO] [stdout]    |                   ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `in_use` is never read
[INFO] [stdout]   --> src/cap_5.rs:94:9
[INFO] [stdout]    |
[INFO] [stdout] 91 |     pub struct Channel<T> {
[INFO] [stdout]    |                ------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 94 |         in_use: AtomicBool,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static `V1` is never used
[INFO] [stdout]    --> src/cap_3.rs:109:12
[INFO] [stdout]     |
[INFO] [stdout] 109 |     static V1: AtomicBool = AtomicBool::new(false);
[INFO] [stdout]     |            ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static `V2` is never used
[INFO] [stdout]    --> src/cap_3.rs:110:12
[INFO] [stdout]     |
[INFO] [stdout] 110 |     static V2: AtomicBool = AtomicBool::new(false);
[INFO] [stdout]     |            ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static `V3` is never used
[INFO] [stdout]    --> src/cap_3.rs:111:12
[INFO] [stdout]     |
[INFO] [stdout] 111 |     static V3: AtomicBool = AtomicBool::new(false);
[INFO] [stdout]     |            ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `send`, `is_ready`, and `receive` are never used
[INFO] [stdout]    --> src/cap_5.rs:99:22
[INFO] [stdout]     |
[INFO] [stdout] 98  |     impl<T> Channel<T> {
[INFO] [stdout]     |     ------------------ associated items in this implementation
[INFO] [stdout] 99  |         pub const fn new() -> Self {
[INFO] [stdout]     |                      ^^^
[INFO] [stdout] ...
[INFO] [stdout] 108 |         pub fn send(&self, message: T) {
[INFO] [stdout]     |                ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 116 |         pub fn is_ready(&self) -> bool {
[INFO] [stdout]     |                ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 124 |         pub fn receive(&self) -> T {
[INFO] [stdout]     |                ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static `DONE` is never used
[INFO] [stdout]    --> src/cap_3.rs:112:12
[INFO] [stdout]     |
[INFO] [stdout] 112 |     static DONE: AtomicBool = AtomicBool::new(false);
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]    --> src/cap_5.rs:140:12
[INFO] [stdout]     |
[INFO] [stdout] 140 |     pub fn main() {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]    --> src/cap_3.rs:114:12
[INFO] [stdout]     |
[INFO] [stdout] 114 |     pub fn main() {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `EMPTY` is never used
[INFO] [stdout]    --> src/cap_5.rs:161:11
[INFO] [stdout]     |
[INFO] [stdout] 161 |     const EMPTY: u8 = 0;
[INFO] [stdout]     |           ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static `DATA` is never used
[INFO] [stdout]    --> src/cap_3.rs:149:16
[INFO] [stdout]     |
[INFO] [stdout] 149 |     static mut DATA: String = String::new();
[INFO] [stdout]     |                ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `WRITING` is never used
[INFO] [stdout]    --> src/cap_5.rs:162:11
[INFO] [stdout]     |
[INFO] [stdout] 162 |     const WRITING: u8 = 1;
[INFO] [stdout]     |           ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static `LOCKED` is never used
[INFO] [stdout]    --> src/cap_3.rs:150:12
[INFO] [stdout]     |
[INFO] [stdout] 150 |     static LOCKED: AtomicBool = AtomicBool::new(false);
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `READING` is never used
[INFO] [stdout]    --> src/cap_5.rs:164:11
[INFO] [stdout]     |
[INFO] [stdout] 164 |     const READING: u8 = 3;
[INFO] [stdout]     |           ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `f` is never used
[INFO] [stdout]    --> src/cap_3.rs:152:8
[INFO] [stdout]     |
[INFO] [stdout] 152 |     fn f() {
[INFO] [stdout]     |        ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]    --> src/cap_3.rs:162:12
[INFO] [stdout]     |
[INFO] [stdout] 162 |     pub fn main() {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Data` is never constructed
[INFO] [stdout]    --> src/cap_3.rs:178:12
[INFO] [stdout]     |
[INFO] [stdout] 178 |     struct Data;
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `send`, `is_ready`, and `receive` are never used
[INFO] [stdout]    --> src/cap_5.rs:179:22
[INFO] [stdout]     |
[INFO] [stdout] 178 |     impl<T> Channel<T> {
[INFO] [stdout]     |     ------------------ associated items in this implementation
[INFO] [stdout] 179 |         pub const fn new() -> Self {
[INFO] [stdout]     |                      ^^^
[INFO] [stdout] ...
[INFO] [stdout] 187 |         pub fn send(&self, message: T) {
[INFO] [stdout]     |                ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 199 |         pub fn is_ready(&self) -> bool {
[INFO] [stdout]     |                ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 207 |         pub fn receive(&self) -> T {
[INFO] [stdout]     |                ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `generate_data` is never used
[INFO] [stdout]    --> src/cap_3.rs:179:8
[INFO] [stdout]     |
[INFO] [stdout] 179 |     fn generate_data() -> Data {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `channel` is never used
[INFO] [stdout]    --> src/cap_5.rs:238:12
[INFO] [stdout]     |
[INFO] [stdout] 238 |     pub fn channel<T>() -> (Sender<T>, Receiver<T>) {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_data` is never used
[INFO] [stdout]    --> src/cap_3.rs:182:8
[INFO] [stdout]     |
[INFO] [stdout] 182 |     fn get_data() -> &'static Data {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Sender` is never constructed
[INFO] [stdout]    --> src/cap_5.rs:247:16
[INFO] [stdout]     |
[INFO] [stdout] 247 |     pub struct Sender<T> {
[INFO] [stdout]     |                ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]   --> src/cap_4.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub fn main() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Receiver` is never constructed
[INFO] [stdout]    --> src/cap_5.rs:250:16
[INFO] [stdout]     |
[INFO] [stdout] 250 |     pub struct Receiver<T> {
[INFO] [stdout]     |                ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Channel` is never constructed
[INFO] [stdout]    --> src/cap_5.rs:253:12
[INFO] [stdout]     |
[INFO] [stdout] 253 |     struct Channel<T> {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `lock`, and `unlock` are never used
[INFO] [stdout]   --> src/cap_4.rs:32:18
[INFO] [stdout]    |
[INFO] [stdout] 31 | impl<T> SpinLock<T> {
[INFO] [stdout]    | ------------------- associated items in this implementation
[INFO] [stdout] 32 |     pub const fn new(value: T) -> Self {
[INFO] [stdout]    |                  ^^^
[INFO] [stdout] ...
[INFO] [stdout] 39 |     pub fn lock(&self) -> Guard<T> {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 46 |     pub fn unlock(&self) {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `send` is never used
[INFO] [stdout]    --> src/cap_5.rs:261:16
[INFO] [stdout]     |
[INFO] [stdout] 260 |     impl<T> Sender<T> {
[INFO] [stdout]     |     ----------------- method in this implementation
[INFO] [stdout] 261 |         pub fn send(self, message: T) {
[INFO] [stdout]     |                ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Channel` is never constructed
[INFO] [stdout]   --> src/cap_5.rs:11:16
[INFO] [stdout]    |
[INFO] [stdout] 11 |     pub struct Channel<T> {
[INFO] [stdout]    |                ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `is_ready` and `receive` are never used
[INFO] [stdout]    --> src/cap_5.rs:267:16
[INFO] [stdout]     |
[INFO] [stdout] 266 |     impl<T> Receiver<T> {
[INFO] [stdout]     |     ------------------- methods in this implementation
[INFO] [stdout] 267 |         pub fn is_ready(&self) -> bool {
[INFO] [stdout]     |                ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 270 |         pub fn receive(self) -> T {
[INFO] [stdout]     |                ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]    --> src/cap_5.rs:286:12
[INFO] [stdout]     |
[INFO] [stdout] 286 |     pub fn main() {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Sender` is never constructed
[INFO] [stdout]    --> src/cap_5.rs:310:16
[INFO] [stdout]     |
[INFO] [stdout] 310 |     pub struct Sender<'a, T> {
[INFO] [stdout]     |                ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Receiver` is never constructed
[INFO] [stdout]    --> src/cap_5.rs:313:16
[INFO] [stdout]     |
[INFO] [stdout] 313 |     pub struct Receiver<'a, T> {
[INFO] [stdout]     |                ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `send`, and `receive` are never used
[INFO] [stdout]   --> src/cap_5.rs:17:16
[INFO] [stdout]    |
[INFO] [stdout] 16 |     impl<T> Channel<T> {
[INFO] [stdout]    |     ------------------ associated items in this implementation
[INFO] [stdout] 17 |         pub fn new() -> Self {
[INFO] [stdout]    |                ^^^
[INFO] [stdout] ...
[INFO] [stdout] 24 |         fn send(&self, message: T) {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 29 |         fn receive(&self) -> T {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Channel` is never constructed
[INFO] [stdout]    --> src/cap_5.rs:316:12
[INFO] [stdout]     |
[INFO] [stdout] 316 |     struct Channel<T> {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Channel` is never constructed
[INFO] [stdout]   --> src/cap_5.rs:51:16
[INFO] [stdout]    |
[INFO] [stdout] 51 |     pub struct Channel<T> {
[INFO] [stdout]    |                ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `split` are never used
[INFO] [stdout]    --> src/cap_5.rs:324:22
[INFO] [stdout]     |
[INFO] [stdout] 323 |     impl<T> Channel<T> {
[INFO] [stdout]     |     ------------------ associated items in this implementation
[INFO] [stdout] 324 |         pub const fn new() -> Self {
[INFO] [stdout]     |                      ^^^
[INFO] [stdout] ...
[INFO] [stdout] 331 |         pub fn split<'a>(&'a mut self) -> (Sender<'a, T>, Receiver<'a, T>) {
[INFO] [stdout]     |                ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `send`, `is_ready`, and `receive` are never used
[INFO] [stdout]   --> src/cap_5.rs:58:22
[INFO] [stdout]    |
[INFO] [stdout] 57 |     impl<T> Channel<T> {
[INFO] [stdout]    |     ------------------ associated items in this implementation
[INFO] [stdout] 58 |         pub const fn new() -> Self {
[INFO] [stdout]    |                      ^^^
[INFO] [stdout] ...
[INFO] [stdout] 65 |         pub unsafe fn send(&self, message: T) {
[INFO] [stdout]    |                       ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 71 |         pub fn is_ready(&self) -> bool {
[INFO] [stdout]    |                ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 77 |         pub unsafe fn receive(&self) -> T {
[INFO] [stdout]    |                       ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `send` is never used
[INFO] [stdout]    --> src/cap_5.rs:338:16
[INFO] [stdout]     |
[INFO] [stdout] 337 |     impl<T> Sender<'_, T> {
[INFO] [stdout]     |     --------------------- method in this implementation
[INFO] [stdout] 338 |         pub fn send(self, message: T) {
[INFO] [stdout]     |                ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `in_use` is never read
[INFO] [stdout]   --> src/cap_5.rs:94:9
[INFO] [stdout]    |
[INFO] [stdout] 91 |     pub struct Channel<T> {
[INFO] [stdout]    |                ------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 94 |         in_use: AtomicBool,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `is_ready` and `receive` are never used
[INFO] [stdout]    --> src/cap_5.rs:344:16
[INFO] [stdout]     |
[INFO] [stdout] 343 |     impl<T> Receiver<'_, T> {
[INFO] [stdout]     |     ----------------------- methods in this implementation
[INFO] [stdout] 344 |         pub fn is_ready(&self) -> bool {
[INFO] [stdout]     |                ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 347 |         pub fn receive(self) -> T {
[INFO] [stdout]     |                ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]    --> src/cap_5.rs:363:12
[INFO] [stdout]     |
[INFO] [stdout] 363 |     pub fn main() {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `use_condvar` is never used
[INFO] [stdout]  --> src/condition_variables.rs:6:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub fn use_condvar() {
[INFO] [stdout]   |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `example` is never used
[INFO] [stdout]  --> src/parking.rs:9:8
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub fn example() {
[INFO] [stdout]   |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]   --> src/cap_1.rs:65:10
[INFO] [stdout]    |
[INFO] [stdout] 63 |         let total = s.spawn(|| calc_sum(&values));
[INFO] [stdout]    |             ----- these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] 64 |         let maximum = s.spawn(|| calc_max(&values));
[INFO] [stdout]    |             ------- these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] 65 |         (total.join().unwrap(), maximum.join().unwrap())
[INFO] [stdout]    |          ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this changes meaning in Rust 2024
[INFO] [stdout]    = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/123739>
[INFO] [stdout]    = note: requested on the command line with `-D tail-expr-drop-order`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]   --> src/cap_1.rs:65:33
[INFO] [stdout]    |
[INFO] [stdout] 63 |         let total = s.spawn(|| calc_sum(&values));
[INFO] [stdout]    |             ----- these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] 64 |         let maximum = s.spawn(|| calc_max(&values));
[INFO] [stdout]    |             ------- these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] 65 |         (total.join().unwrap(), maximum.join().unwrap())
[INFO] [stdout]    |                                 ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this changes meaning in Rust 2024
[INFO] [stdout]    = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/123739>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `send`, `is_ready`, and `receive` are never used
[INFO] [stdout]    --> src/cap_5.rs:99:22
[INFO] [stdout]     |
[INFO] [stdout] 98  |     impl<T> Channel<T> {
[INFO] [stdout]     |     ------------------ associated items in this implementation
[INFO] [stdout] 99  |         pub const fn new() -> Self {
[INFO] [stdout]     |                      ^^^
[INFO] [stdout] ...
[INFO] [stdout] 108 |         pub fn send(&self, message: T) {
[INFO] [stdout]     |                ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 116 |         pub fn is_ready(&self) -> bool {
[INFO] [stdout]     |                ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 124 |         pub fn receive(&self) -> T {
[INFO] [stdout]     |                ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]    --> src/cap_5.rs:140:12
[INFO] [stdout]     |
[INFO] [stdout] 140 |     pub fn main() {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `EMPTY` is never used
[INFO] [stdout]    --> src/cap_5.rs:161:11
[INFO] [stdout]     |
[INFO] [stdout] 161 |     const EMPTY: u8 = 0;
[INFO] [stdout]     |           ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `WRITING` is never used
[INFO] [stdout]    --> src/cap_5.rs:162:11
[INFO] [stdout]     |
[INFO] [stdout] 162 |     const WRITING: u8 = 1;
[INFO] [stdout]     |           ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `READING` is never used
[INFO] [stdout]    --> src/cap_5.rs:164:11
[INFO] [stdout]     |
[INFO] [stdout] 164 |     const READING: u8 = 3;
[INFO] [stdout]     |           ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `send`, `is_ready`, and `receive` are never used
[INFO] [stdout]    --> src/cap_5.rs:179:22
[INFO] [stdout]     |
[INFO] [stdout] 178 |     impl<T> Channel<T> {
[INFO] [stdout]     |     ------------------ associated items in this implementation
[INFO] [stdout] 179 |         pub const fn new() -> Self {
[INFO] [stdout]     |                      ^^^
[INFO] [stdout] ...
[INFO] [stdout] 187 |         pub fn send(&self, message: T) {
[INFO] [stdout]     |                ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 199 |         pub fn is_ready(&self) -> bool {
[INFO] [stdout]     |                ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 207 |         pub fn receive(&self) -> T {
[INFO] [stdout]     |                ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `channel` is never used
[INFO] [stdout]    --> src/cap_5.rs:238:12
[INFO] [stdout]     |
[INFO] [stdout] 238 |     pub fn channel<T>() -> (Sender<T>, Receiver<T>) {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Sender` is never constructed
[INFO] [stdout]    --> src/cap_5.rs:247:16
[INFO] [stdout]     |
[INFO] [stdout] 247 |     pub struct Sender<T> {
[INFO] [stdout]     |                ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Receiver` is never constructed
[INFO] [stdout]    --> src/cap_5.rs:250:16
[INFO] [stdout]     |
[INFO] [stdout] 250 |     pub struct Receiver<T> {
[INFO] [stdout]     |                ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Channel` is never constructed
[INFO] [stdout]    --> src/cap_5.rs:253:12
[INFO] [stdout]     |
[INFO] [stdout] 253 |     struct Channel<T> {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `send` is never used
[INFO] [stdout]    --> src/cap_5.rs:261:16
[INFO] [stdout]     |
[INFO] [stdout] 260 |     impl<T> Sender<T> {
[INFO] [stdout]     |     ----------------- method in this implementation
[INFO] [stdout] 261 |         pub fn send(self, message: T) {
[INFO] [stdout]     |                ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `is_ready` and `receive` are never used
[INFO] [stdout]    --> src/cap_5.rs:267:16
[INFO] [stdout]     |
[INFO] [stdout] 266 |     impl<T> Receiver<T> {
[INFO] [stdout]     |     ------------------- methods in this implementation
[INFO] [stdout] 267 |         pub fn is_ready(&self) -> bool {
[INFO] [stdout]     |                ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 270 |         pub fn receive(self) -> T {
[INFO] [stdout]     |                ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]    --> src/cap_5.rs:286:12
[INFO] [stdout]     |
[INFO] [stdout] 286 |     pub fn main() {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Sender` is never constructed
[INFO] [stdout]    --> src/cap_5.rs:310:16
[INFO] [stdout]     |
[INFO] [stdout] 310 |     pub struct Sender<'a, T> {
[INFO] [stdout]     |                ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Receiver` is never constructed
[INFO] [stdout]    --> src/cap_5.rs:313:16
[INFO] [stdout]     |
[INFO] [stdout] 313 |     pub struct Receiver<'a, T> {
[INFO] [stdout]     |                ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Channel` is never constructed
[INFO] [stdout]    --> src/cap_5.rs:316:12
[INFO] [stdout]     |
[INFO] [stdout] 316 |     struct Channel<T> {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `split` are never used
[INFO] [stdout]    --> src/cap_5.rs:324:22
[INFO] [stdout]     |
[INFO] [stdout] 323 |     impl<T> Channel<T> {
[INFO] [stdout]     |     ------------------ associated items in this implementation
[INFO] [stdout] 324 |         pub const fn new() -> Self {
[INFO] [stdout]     |                      ^^^
[INFO] [stdout] ...
[INFO] [stdout] 331 |         pub fn split<'a>(&'a mut self) -> (Sender<'a, T>, Receiver<'a, T>) {
[INFO] [stdout]     |                ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `send` is never used
[INFO] [stdout]    --> src/cap_5.rs:338:16
[INFO] [stdout]     |
[INFO] [stdout] 337 |     impl<T> Sender<'_, T> {
[INFO] [stdout]     |     --------------------- method in this implementation
[INFO] [stdout] 338 |         pub fn send(self, message: T) {
[INFO] [stdout]     |                ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `is_ready` and `receive` are never used
[INFO] [stdout]    --> src/cap_5.rs:344:16
[INFO] [stdout]     |
[INFO] [stdout] 343 |     impl<T> Receiver<'_, T> {
[INFO] [stdout]     |     ----------------------- methods in this implementation
[INFO] [stdout] 344 |         pub fn is_ready(&self) -> bool {
[INFO] [stdout]     |                ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 347 |         pub fn receive(self) -> T {
[INFO] [stdout]     |                ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]    --> src/cap_5.rs:363:12
[INFO] [stdout]     |
[INFO] [stdout] 363 |     pub fn main() {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `use_condvar` is never used
[INFO] [stdout]  --> src/condition_variables.rs:6:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub fn use_condvar() {
[INFO] [stdout]   |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `example` is never used
[INFO] [stdout]  --> src/parking.rs:9:8
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub fn example() {
[INFO] [stdout]   |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]   --> src/cap_1.rs:65:10
[INFO] [stdout]    |
[INFO] [stdout] 63 |         let total = s.spawn(|| calc_sum(&values));
[INFO] [stdout]    |             ----- these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] 64 |         let maximum = s.spawn(|| calc_max(&values));
[INFO] [stdout]    |             ------- these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] 65 |         (total.join().unwrap(), maximum.join().unwrap())
[INFO] [stdout]    |          ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this changes meaning in Rust 2024
[INFO] [stdout]    = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/123739>
[INFO] [stdout]    = note: requested on the command line with `-D tail-expr-drop-order`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]   --> src/cap_1.rs:65:33
[INFO] [stdout]    |
[INFO] [stdout] 63 |         let total = s.spawn(|| calc_sum(&values));
[INFO] [stdout]    |             ----- these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] 64 |         let maximum = s.spawn(|| calc_max(&values));
[INFO] [stdout]    |             ------- these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] 65 |         (total.join().unwrap(), maximum.join().unwrap())
[INFO] [stdout]    |                                 ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this changes meaning in Rust 2024
[INFO] [stdout]    = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/123739>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]   --> src/cap_4.rs:14:20
[INFO] [stdout]    |
[INFO] [stdout] 14 |         s.spawn(|| x.lock().push(1));
[INFO] [stdout]    |                    ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this changes meaning in Rust 2024
[INFO] [stdout]    = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/123739>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]   --> src/cap_4.rs:35:20
[INFO] [stdout]    |
[INFO] [stdout] 32 |     pub const fn new(value: T) -> Self {
[INFO] [stdout]    |                      -------- these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] ...
[INFO] [stdout] 35 |             value: UnsafeCell::new(value),
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this changes meaning in Rust 2024
[INFO] [stdout]    = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/123739>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]    --> src/cap_5.rs:244:10
[INFO] [stdout]     |
[INFO] [stdout] 239 |         let a = Arc::new(Channel {
[INFO] [stdout]     |             - these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] ...
[INFO] [stdout] 244 |         (Sender { channel: a.clone() }, Receiver { channel: a })
[INFO] [stdout]     |          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2024
[INFO] [stdout]     = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/123739>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]    --> src/cap_5.rs:244:41
[INFO] [stdout]     |
[INFO] [stdout] 239 |         let a = Arc::new(Channel {
[INFO] [stdout]     |             - these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] ...
[INFO] [stdout] 244 |         (Sender { channel: a.clone() }, Receiver { channel: a })
[INFO] [stdout]     |                                         ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2024
[INFO] [stdout]     = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/123739>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]   --> src/cap_4.rs:14:20
[INFO] [stdout]    |
[INFO] [stdout] 14 |         s.spawn(|| x.lock().push(1));
[INFO] [stdout]    |                    ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this changes meaning in Rust 2024
[INFO] [stdout]    = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/123739>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]   --> src/cap_4.rs:35:20
[INFO] [stdout]    |
[INFO] [stdout] 32 |     pub const fn new(value: T) -> Self {
[INFO] [stdout]    |                      -------- these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] ...
[INFO] [stdout] 35 |             value: UnsafeCell::new(value),
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this changes meaning in Rust 2024
[INFO] [stdout]    = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/123739>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]    --> src/cap_5.rs:244:10
[INFO] [stdout]     |
[INFO] [stdout] 239 |         let a = Arc::new(Channel {
[INFO] [stdout]     |             - these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] ...
[INFO] [stdout] 244 |         (Sender { channel: a.clone() }, Receiver { channel: a })
[INFO] [stdout]     |          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2024
[INFO] [stdout]     = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/123739>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]    --> src/cap_5.rs:244:41
[INFO] [stdout]     |
[INFO] [stdout] 239 |         let a = Arc::new(Channel {
[INFO] [stdout]     |             - these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] ...
[INFO] [stdout] 244 |         (Sender { channel: a.clone() }, Receiver { channel: a })
[INFO] [stdout]     |                                         ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2024
[INFO] [stdout]     = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/123739>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 6 previous errors; 85 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 6 previous errors; 85 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `atomics_and_locks` (bin "atomics_and_locks") due to 7 previous errors; 85 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `atomics_and_locks` (bin "atomics_and_locks" test) due to 7 previous errors; 85 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "3def18b988f6f119699e03ca9e59a3bee71ea1b63633e97027a551ac16f5faaf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3def18b988f6f119699e03ca9e59a3bee71ea1b63633e97027a551ac16f5faaf", kill_on_drop: false }`
[INFO] [stdout] 3def18b988f6f119699e03ca9e59a3bee71ea1b63633e97027a551ac16f5faaf