[INFO] cloning repository https://github.com/suhanyujie/rust-cookbook-note
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/suhanyujie/rust-cookbook-note" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsuhanyujie%2Frust-cookbook-note", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsuhanyujie%2Frust-cookbook-note'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a676b326fbf962b47fa8c7f5a111c747fa0c1803
[INFO] checking suhanyujie/rust-cookbook-note against try#8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8 for pr-82565
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsuhanyujie%2Frust-cookbook-note" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/suhanyujie/rust-cookbook-note on toolchain 8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/suhanyujie/rust-cookbook-note
[INFO] finished tweaking git repo https://github.com/suhanyujie/rust-cookbook-note
[INFO] tweaked toml for git repo https://github.com/suhanyujie/rust-cookbook-note written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/suhanyujie/rust-cookbook-note already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ansi_term v0.12.1
[INFO] [stderr]   Downloaded hermit-abi v0.1.8
[INFO] [stderr]   Downloaded unicode-width v0.1.7
[INFO] [stderr]   Downloaded time v0.1.43
[INFO] [stderr]   Downloaded libc v0.2.72
[INFO] [stderr]   Downloaded clap v2.33.0
[INFO] [stderr]   Downloaded chrono v0.4.13
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a524b6654c48682d3504769252cade8878e3232a6c77e8efc63f3484d4b01c30
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "a524b6654c48682d3504769252cade8878e3232a6c77e8efc63f3484d4b01c30", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a524b6654c48682d3504769252cade8878e3232a6c77e8efc63f3484d4b01c30", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a524b6654c48682d3504769252cade8878e3232a6c77e8efc63f3484d4b01c30", kill_on_drop: false }`
[INFO] [stdout] a524b6654c48682d3504769252cade8878e3232a6c77e8efc63f3484d4b01c30
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 59efa6b00a3e8abccc59828cb9345b47c5d3e6ecc5346ae4088cac07155602b4
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "59efa6b00a3e8abccc59828cb9345b47c5d3e6ecc5346ae4088cac07155602b4", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking ppv-lite86 v0.2.6
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking c2-chacha v0.2.3
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.1
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking chrono v0.4.13
[INFO] [stderr]     Checking cookbook v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]  --> src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #[macro_use]
[INFO] [stdout]   | ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::mem`
[INFO] [stdout]  --> src/notes/alpha.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::mem;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::cmp::Ordering`
[INFO] [stdout]  --> src/notes/copy_trait.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::cmp::Ordering;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Div`, `Mul`, `Sub`
[INFO] [stdout]  --> src/notes/op_rhs.rs:1:21
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::ops::{Add, Div, Mul, Sub};
[INFO] [stdout]   |                     ^^^  ^^^  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `notes::alpha`
[INFO] [stdout]  --> src/main.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use notes::alpha;
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]  --> src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #[macro_use]
[INFO] [stdout]   | ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::mem`
[INFO] [stdout]  --> src/notes/alpha.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::mem;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::cmp::Ordering`
[INFO] [stdout]  --> src/notes/copy_trait.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::cmp::Ordering;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Div`, `Mul`, `Sub`
[INFO] [stdout]  --> src/notes/op_rhs.rs:1:21
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::ops::{Add, Div, Mul, Sub};
[INFO] [stdout]   |                     ^^^  ^^^  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `notes::alpha`
[INFO] [stdout]  --> src/main.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use notes::alpha;
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]   --> src/main.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 20 |     process::exit(-1);
[INFO] [stdout]    |     ----------------- any code following this expression is unreachable
[INFO] [stdout] ...
[INFO] [stdout] 24 |     command::try_with_test_param();
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]   --> src/main.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 20 |     process::exit(-1);
[INFO] [stdout]    |     ----------------- any code following this expression is unreachable
[INFO] [stdout] ...
[INFO] [stdout] 24 |     command::try_with_test_param();
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/notes/process_data_competition.rs:83:9
[INFO] [stdout]    |
[INFO] [stdout] 63 |         MyData(data1) => {
[INFO] [stdout]    |         ------------- matches any value
[INFO] [stdout] ...
[INFO] [stdout] 83 |         _ => {
[INFO] [stdout]    |         ^ unreachable pattern
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `status`
[INFO] [stdout]   --> src/command.rs:47:13
[INFO] [stdout]    |
[INFO] [stdout] 47 |             status,
[INFO] [stdout]    |             ^^^^^^ help: try ignoring the field: `status: _`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `stderr`
[INFO] [stdout]   --> src/command.rs:49:13
[INFO] [stdout]    |
[INFO] [stdout] 49 |             stderr,
[INFO] [stdout]    |             ^^^^^^ help: try ignoring the field: `stderr: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `p_duck`
[INFO] [stdout]   --> src/notes/alpha.rs:24:22
[INFO] [stdout]    |
[INFO] [stdout] 24 | fn print_traitobject(p_duck: &dyn Bird) {
[INFO] [stdout]    |                      ^^^^^^ help: if this is intentional, prefix it with an underscore: `_p_duck`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `d3`
[INFO] [stdout]   --> src/notes/alpha.rs:32:9
[INFO] [stdout]    |
[INFO] [stdout] 32 |     let d3 = d2 as &dyn Bird;
[INFO] [stdout]    |         ^^ help: if this is intentional, prefix it with an underscore: `_d3`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `v2`
[INFO] [stdout]   --> src/notes/copy_trait.rs:20:9
[INFO] [stdout]    |
[INFO] [stdout] 20 |     let v2 = v1;
[INFO] [stdout]    |         ^^ help: if this is intentional, prefix it with an underscore: `_v2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/notes/process_data_competition.rs:42:13
[INFO] [stdout]    |
[INFO] [stdout] 42 |         for i in 0..COUNT {
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/notes/process_data_competition.rs:50:13
[INFO] [stdout]    |
[INFO] [stdout] 50 |         for i in 0..COUNT {
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/notes/process_data_competition.rs:66:21
[INFO] [stdout]    |
[INFO] [stdout] 66 |                 for i in 0..COUNT {
[INFO] [stdout]    |                     ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/notes/process_data_competition.rs:74:21
[INFO] [stdout]    |
[INFO] [stdout] 74 |                 for i in 0..COUNT {
[INFO] [stdout]    |                     ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/algorithm.rs:93:9
[INFO] [stdout]    |
[INFO] [stdout] 93 |     let mut rng = rand::thread_rng();
[INFO] [stdout]    |         ----^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `gen_a_u8_num`
[INFO] [stdout]   --> src/algorithm.rs:36:8
[INFO] [stdout]    |
[INFO] [stdout] 36 | pub fn gen_a_u8_num() -> u8 {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `gen_a_i32_num`
[INFO] [stdout]   --> src/algorithm.rs:45:8
[INFO] [stdout]    |
[INFO] [stdout] 45 | pub fn gen_a_i32_num() -> i32 {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `gen_random_within_range`
[INFO] [stdout]   --> src/algorithm.rs:53:8
[INFO] [stdout]    |
[INFO] [stdout] 53 | pub fn gen_random_within_range(min: isize, max: isize) -> isize {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `get_random_string`
[INFO] [stdout]   --> src/algorithm.rs:92:8
[INFO] [stdout]    |
[INFO] [stdout] 92 | pub fn get_random_string(length: u8) -> String {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `get_random_string_from_customer_str`
[INFO] [stdout]    --> src/algorithm.rs:111:8
[INFO] [stdout]     |
[INFO] [stdout] 111 | pub fn get_random_string_from_customer_str(length: u8) -> String {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `print_traitobject`
[INFO] [stdout]   --> src/notes/alpha.rs:24:4
[INFO] [stdout]    |
[INFO] [stdout] 24 | fn print_traitobject(p_duck: &dyn Bird) {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `run`
[INFO] [stdout]   --> src/notes/alpha.rs:29:8
[INFO] [stdout]    |
[INFO] [stdout] 29 | pub fn run() {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/notes/process_data_competition.rs:18:12
[INFO] [stdout]    |
[INFO] [stdout] 18 |     pub fn new(num: isize) -> MyData0 {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `test_resolve_competition`
[INFO] [stdout]   --> src/notes/process_data_competition.rs:61:8
[INFO] [stdout]    |
[INFO] [stdout] 61 | pub fn test_resolve_competition() {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `simple_bubble`
[INFO] [stdout]  --> src/notes/sort.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn simple_bubble(arr: &mut Vec<i32>) -> &Vec<i32> {
[INFO] [stdout]   |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `insert`
[INFO] [stdout]   --> src/notes/sort.rs:22:8
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub fn insert(arr: &mut Vec<i32>) {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `shell_sort`
[INFO] [stdout]   --> src/notes/sort.rs:42:8
[INFO] [stdout]    |
[INFO] [stdout] 42 | pub fn shell_sort(arr: &Vec<i32>) {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `get_shell_addition_rate`
[INFO] [stdout]   --> src/notes/sort.rs:50:4
[INFO] [stdout]    |
[INFO] [stdout] 50 | fn get_shell_addition_rate(l: usize) -> usize {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `one_file_func`
[INFO] [stdout]  --> src/notes/test_module/one_file.rs:2:8
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub fn one_file_func() {
[INFO] [stdout]   |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused attribute
[INFO] [stdout]  --> src/notes/alpha.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(dyn_trait)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_attributes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: crate-level attribute should be in the root module
[INFO] [stdout]  --> src/notes/alpha.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(dyn_trait)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 33 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/notes/process_data_competition.rs:83:9
[INFO] [stdout]    |
[INFO] [stdout] 63 |         MyData(data1) => {
[INFO] [stdout]    |         ------------- matches any value
[INFO] [stdout] ...
[INFO] [stdout] 83 |         _ => {
[INFO] [stdout]    |         ^ unreachable pattern
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `status`
[INFO] [stdout]   --> src/command.rs:47:13
[INFO] [stdout]    |
[INFO] [stdout] 47 |             status,
[INFO] [stdout]    |             ^^^^^^ help: try ignoring the field: `status: _`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `stderr`
[INFO] [stdout]   --> src/command.rs:49:13
[INFO] [stdout]    |
[INFO] [stdout] 49 |             stderr,
[INFO] [stdout]    |             ^^^^^^ help: try ignoring the field: `stderr: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `p_duck`
[INFO] [stdout]   --> src/notes/alpha.rs:24:22
[INFO] [stdout]    |
[INFO] [stdout] 24 | fn print_traitobject(p_duck: &dyn Bird) {
[INFO] [stdout]    |                      ^^^^^^ help: if this is intentional, prefix it with an underscore: `_p_duck`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `d3`
[INFO] [stdout]   --> src/notes/alpha.rs:32:9
[INFO] [stdout]    |
[INFO] [stdout] 32 |     let d3 = d2 as &dyn Bird;
[INFO] [stdout]    |         ^^ help: if this is intentional, prefix it with an underscore: `_d3`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `v2`
[INFO] [stdout]   --> src/notes/copy_trait.rs:20:9
[INFO] [stdout]    |
[INFO] [stdout] 20 |     let v2 = v1;
[INFO] [stdout]    |         ^^ help: if this is intentional, prefix it with an underscore: `_v2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/notes/process_data_competition.rs:42:13
[INFO] [stdout]    |
[INFO] [stdout] 42 |         for i in 0..COUNT {
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/notes/process_data_competition.rs:50:13
[INFO] [stdout]    |
[INFO] [stdout] 50 |         for i in 0..COUNT {
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/notes/process_data_competition.rs:66:21
[INFO] [stdout]    |
[INFO] [stdout] 66 |                 for i in 0..COUNT {
[INFO] [stdout]    |                     ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/notes/process_data_competition.rs:74:21
[INFO] [stdout]    |
[INFO] [stdout] 74 |                 for i in 0..COUNT {
[INFO] [stdout]    |                     ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/algorithm.rs:93:9
[INFO] [stdout]    |
[INFO] [stdout] 93 |     let mut rng = rand::thread_rng();
[INFO] [stdout]    |         ----^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `gen_a_u8_num`
[INFO] [stdout]   --> src/algorithm.rs:36:8
[INFO] [stdout]    |
[INFO] [stdout] 36 | pub fn gen_a_u8_num() -> u8 {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `gen_a_i32_num`
[INFO] [stdout]   --> src/algorithm.rs:45:8
[INFO] [stdout]    |
[INFO] [stdout] 45 | pub fn gen_a_i32_num() -> i32 {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `gen_random_within_range`
[INFO] [stdout]   --> src/algorithm.rs:53:8
[INFO] [stdout]    |
[INFO] [stdout] 53 | pub fn gen_random_within_range(min: isize, max: isize) -> isize {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `print_traitobject`
[INFO] [stdout]   --> src/notes/alpha.rs:24:4
[INFO] [stdout]    |
[INFO] [stdout] 24 | fn print_traitobject(p_duck: &dyn Bird) {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `run`
[INFO] [stdout]   --> src/notes/alpha.rs:29:8
[INFO] [stdout]    |
[INFO] [stdout] 29 | pub fn run() {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/notes/process_data_competition.rs:18:12
[INFO] [stdout]    |
[INFO] [stdout] 18 |     pub fn new(num: isize) -> MyData0 {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `test_resolve_competition`
[INFO] [stdout]   --> src/notes/process_data_competition.rs:61:8
[INFO] [stdout]    |
[INFO] [stdout] 61 | pub fn test_resolve_competition() {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `shell_sort`
[INFO] [stdout]   --> src/notes/sort.rs:42:8
[INFO] [stdout]    |
[INFO] [stdout] 42 | pub fn shell_sort(arr: &Vec<i32>) {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `get_shell_addition_rate`
[INFO] [stdout]   --> src/notes/sort.rs:50:4
[INFO] [stdout]    |
[INFO] [stdout] 50 | fn get_shell_addition_rate(l: usize) -> usize {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `one_file_func`
[INFO] [stdout]  --> src/notes/test_module/one_file.rs:2:8
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub fn one_file_func() {
[INFO] [stdout]   |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused attribute
[INFO] [stdout]  --> src/notes/alpha.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(dyn_trait)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_attributes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: crate-level attribute should be in the root module
[INFO] [stdout]  --> src/notes/alpha.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(dyn_trait)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 29 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 14.83s
[INFO] running `Command { std: "docker" "inspect" "59efa6b00a3e8abccc59828cb9345b47c5d3e6ecc5346ae4088cac07155602b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "59efa6b00a3e8abccc59828cb9345b47c5d3e6ecc5346ae4088cac07155602b4", kill_on_drop: false }`
[INFO] [stdout] 59efa6b00a3e8abccc59828cb9345b47c5d3e6ecc5346ae4088cac07155602b4