[INFO] updating cached repository hello2dj/rust-practice
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/hello2dj/rust-practice
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/hello2dj/rust-practice" "work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/hello2dj/rust-practice"`
[INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/hello2dj/rust-practice'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/hello2dj/rust-practice" "work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/hello2dj/rust-practice"`
[INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/hello2dj/rust-practice'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] ce0d5883667b72104cdd70b2882319ddf6fdb47a
[INFO] sha for GitHub repo hello2dj/rust-practice: ce0d5883667b72104cdd70b2882319ddf6fdb47a
[INFO] validating manifest of hello2dj/rust-practice on toolchain master#60960a260f7b5c695fd0717311d72ce62dd4eb43
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of hello2dj/rust-practice on toolchain try#266783e4e09e4e9d5307c1c8e695659c58bbcac7
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing hello2dj/rust-practice
[INFO] finished frobbing hello2dj/rust-practice
[INFO] frobbed toml for hello2dj/rust-practice written to work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/hello2dj/rust-practice/Cargo.toml
[INFO] started frobbing hello2dj/rust-practice
[INFO] finished frobbing hello2dj/rust-practice
[INFO] frobbed toml for hello2dj/rust-practice written to work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/hello2dj/rust-practice/Cargo.toml
[INFO] crate hello2dj/rust-practice already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking hello2dj/rust-practice against master#60960a260f7b5c695fd0717311d72ce62dd4eb43 for pr-63376
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63376/worker-3/master#60960a260f7b5c695fd0717311d72ce62dd4eb43:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/hello2dj/rust-practice:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 5803d2846eb427bc4dc8895df4dedec7f8e1103b0a51cdc635ae91d8a7b58b40
[INFO] running `"docker" "start" "-a" "5803d2846eb427bc4dc8895df4dedec7f8e1103b0a51cdc635ae91d8a7b58b40"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking proc-macro2 v0.4.27
[INFO] [stderr]     Checking twox-hash v1.1.1
[INFO] [stderr]     Checking num-bigint v0.2.1
[INFO] [stderr]     Checking chrono v0.4.6
[INFO] [stderr]     Checking csv-core v0.1.5
[INFO] [stderr]     Checking tokio v0.1.13
[INFO] [stderr]     Checking csv v1.0.5
[INFO] [stderr]     Checking quote v0.6.11
[INFO] [stderr]     Checking syn v0.15.26
[INFO] [stderr]     Checking mysql_common v0.9.2
[INFO] [stderr]     Checking mysql v14.1.1
[INFO] [stderr]     Checking future v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std::process`
[INFO] [stderr]  --> src/csv.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use std::process;
[INFO] [stderr]   |     ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::error::Error`
[INFO] [stderr]  --> src/acronym.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::error::Error;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::iter::FromIterator`
[INFO] [stderr]  --> src/acronym.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::iter::FromIterator;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::borrow::Borrow`
[INFO] [stderr]  --> src/null.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::borrow::Borrow;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::process`
[INFO] [stderr]  --> src/csv.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use std::process;
[INFO] [stderr]   |     ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::error::Error`
[INFO] [stderr]  --> src/acronym.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::error::Error;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::iter::FromIterator`
[INFO] [stderr]  --> src/acronym.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::iter::FromIterator;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::borrow::Borrow`
[INFO] [stderr]  --> src/null.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::borrow::Borrow;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `c`
[INFO] [stderr]   --> src/acronym.rs:14:9
[INFO] [stderr]    |
[INFO] [stderr] 14 |     let c = input.split(" ");
[INFO] [stderr]    |         ^ help: consider prefixing with an underscore: `_c`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `a`
[INFO] [stderr]   --> src/acronym.rs:16:9
[INFO] [stderr]    |
[INFO] [stderr] 16 |     let a = input.split(" ")
[INFO] [stderr]    |         ^ help: consider prefixing with an underscore: `_a`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/fizzbuzz.rs:22:13
[INFO] [stderr]    |
[INFO] [stderr] 22 |         let mut result: Cow<str> = if i%15 == 0 {
[INFO] [stderr]    |             ----^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]  --> src/acronym.rs:8:9
[INFO] [stderr]   |
[INFO] [stderr] 8 |     let mut words = String::new();
[INFO] [stderr]   |         ----^^^^^
[INFO] [stderr]   |         |
[INFO] [stderr]   |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/acronym.rs:27:9
[INFO] [stderr]    |
[INFO] [stderr] 27 |     let mut a = Some(String::new()).take();
[INFO] [stderr]    |         ----^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/null.rs:17:13
[INFO] [stderr]    |
[INFO] [stderr] 17 |         let mut m = HashMap::new();
[INFO] [stderr]    |             ----^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `test`
[INFO] [stderr]  --> src/string_test.rs:2:1
[INFO] [stderr]   |
[INFO] [stderr] 2 | pub fn test() {
[INFO] [stderr]   | ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `fizz_buzz`
[INFO] [stderr]  --> src/fizzbuzz.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub fn fizz_buzz() {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `fizz_buzz_V2`
[INFO] [stderr]   --> src/fizzbuzz.rs:20:1
[INFO] [stderr]    |
[INFO] [stderr] 20 | pub fn fizz_buzz_V2() {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `FizzBuzzItem`
[INFO] [stderr]   --> src/fizzbuzz.rs:38:1
[INFO] [stderr]    |
[INFO] [stderr] 38 | enum FizzBuzzItem {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `fizz_buzz_V3`
[INFO] [stderr]   --> src/fizzbuzz.rs:62:1
[INFO] [stderr]    |
[INFO] [stderr] 62 | fn fizz_buzz_V3() {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `parse`
[INFO] [stderr]   --> src/csv.rs:10:1
[INFO] [stderr]    |
[INFO] [stderr] 10 | pub fn parse() -> Result<(), Box<dyn Error>>{
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `run`
[INFO] [stderr]   --> src/csv.rs:19:1
[INFO] [stderr]    |
[INFO] [stderr] 19 | pub fn run() -> Result<(), Box<dyn Error>> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `get_first_arg`
[INFO] [stderr]   --> src/csv.rs:30:1
[INFO] [stderr]    |
[INFO] [stderr] 30 | fn get_first_arg() -> Result<OsString, Box<dyn Error>>{
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `foo`
[INFO] [stderr]  --> src/null.rs:5:1
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub fn foo() -> Vec<char> {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `capitalize`
[INFO] [stderr]   --> src/null.rs:22:1
[INFO] [stderr]    |
[INFO] [stderr] 22 | fn capitalize(data: &mut [char]) {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `process_or_default`
[INFO] [stderr]   --> src/null.rs:29:1
[INFO] [stderr]    |
[INFO] [stderr] 29 | fn process_or_default(key: &str) {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the feature `dbg_macro` has been stable since 1.32.0 and no longer requires an attribute to enable
[INFO] [stderr]  --> src/main.rs:2:12
[INFO] [stderr]   |
[INFO] [stderr] 2 | #![feature(dbg_macro)]
[INFO] [stderr]   |            ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(stable_features)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:19:5
[INFO] [stderr]    |
[INFO] [stderr] 19 |     acronym::acronym("dengjie de");
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: function `fizz_buzz_V2` should have a snake case name
[INFO] [stderr]   --> src/fizzbuzz.rs:20:8
[INFO] [stderr]    |
[INFO] [stderr] 20 | pub fn fizz_buzz_V2() {
[INFO] [stderr]    |        ^^^^^^^^^^^^ help: convert the identifier to snake case: `fizz_buzz_v2`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function `fizz_buzz_V3` should have a snake case name
[INFO] [stderr]   --> src/fizzbuzz.rs:62:4
[INFO] [stderr]    |
[INFO] [stderr] 62 | fn fizz_buzz_V3() {
[INFO] [stderr]    |    ^^^^^^^^^^^^ help: convert the identifier to snake case: `fizz_buzz_v3`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `c`
[INFO] [stderr]   --> src/acronym.rs:14:9
[INFO] [stderr]    |
[INFO] [stderr] 14 |     let c = input.split(" ");
[INFO] [stderr]    |         ^ help: consider prefixing with an underscore: `_c`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `a`
[INFO] [stderr]   --> src/acronym.rs:16:9
[INFO] [stderr]    |
[INFO] [stderr] 16 |     let a = input.split(" ")
[INFO] [stderr]    |         ^ help: consider prefixing with an underscore: `_a`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `data`
[INFO] [stderr]   --> src/null.rs:43:9
[INFO] [stderr]    |
[INFO] [stderr] 43 |     let data = foo();
[INFO] [stderr]    |         ^^^^ help: consider prefixing with an underscore: `_data`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/fizzbuzz.rs:22:13
[INFO] [stderr]    |
[INFO] [stderr] 22 |         let mut result: Cow<str> = if i%15 == 0 {
[INFO] [stderr]    |             ----^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]  --> src/acronym.rs:8:9
[INFO] [stderr]   |
[INFO] [stderr] 8 |     let mut words = String::new();
[INFO] [stderr]   |         ----^^^^^
[INFO] [stderr]   |         |
[INFO] [stderr]   |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/acronym.rs:27:9
[INFO] [stderr]    |
[INFO] [stderr] 27 |     let mut a = Some(String::new()).take();
[INFO] [stderr]    |         ----^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/null.rs:17:13
[INFO] [stderr]    |
[INFO] [stderr] 17 |         let mut m = HashMap::new();
[INFO] [stderr]    |             ----^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `test`
[INFO] [stderr]  --> src/string_test.rs:2:1
[INFO] [stderr]   |
[INFO] [stderr] 2 | pub fn test() {
[INFO] [stderr]   | ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `fizz_buzz_V2`
[INFO] [stderr]   --> src/fizzbuzz.rs:20:1
[INFO] [stderr]    |
[INFO] [stderr] 20 | pub fn fizz_buzz_V2() {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `FizzBuzzItem`
[INFO] [stderr]   --> src/fizzbuzz.rs:38:1
[INFO] [stderr]    |
[INFO] [stderr] 38 | enum FizzBuzzItem {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `fizz_buzz_V3`
[INFO] [stderr]   --> src/fizzbuzz.rs:62:1
[INFO] [stderr]    |
[INFO] [stderr] 62 | fn fizz_buzz_V3() {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `parse`
[INFO] [stderr]   --> src/csv.rs:10:1
[INFO] [stderr]    |
[INFO] [stderr] 10 | pub fn parse() -> Result<(), Box<dyn Error>>{
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `run`
[INFO] [stderr]   --> src/csv.rs:19:1
[INFO] [stderr]    |
[INFO] [stderr] 19 | pub fn run() -> Result<(), Box<dyn Error>> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `get_first_arg`
[INFO] [stderr]   --> src/csv.rs:30:1
[INFO] [stderr]    |
[INFO] [stderr] 30 | fn get_first_arg() -> Result<OsString, Box<dyn Error>>{
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the feature `dbg_macro` has been stable since 1.32.0 and no longer requires an attribute to enable
[INFO] [stderr]  --> src/main.rs:2:12
[INFO] [stderr]   |
[INFO] [stderr] 2 | #![feature(dbg_macro)]
[INFO] [stderr]   |            ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(stable_features)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:19:5
[INFO] [stderr]    |
[INFO] [stderr] 19 |     acronym::acronym("dengjie de");
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: function `fizz_buzz_V2` should have a snake case name
[INFO] [stderr]   --> src/fizzbuzz.rs:20:8
[INFO] [stderr]    |
[INFO] [stderr] 20 | pub fn fizz_buzz_V2() {
[INFO] [stderr]    |        ^^^^^^^^^^^^ help: convert the identifier to snake case: `fizz_buzz_v2`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function `fizz_buzz_V3` should have a snake case name
[INFO] [stderr]   --> src/fizzbuzz.rs:62:4
[INFO] [stderr]    |
[INFO] [stderr] 62 | fn fizz_buzz_V3() {
[INFO] [stderr]    |    ^^^^^^^^^^^^ help: convert the identifier to snake case: `fizz_buzz_v3`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 18.71s
[INFO] running `"docker" "inspect" "5803d2846eb427bc4dc8895df4dedec7f8e1103b0a51cdc635ae91d8a7b58b40"`
[INFO] running `"docker" "rm" "-f" "5803d2846eb427bc4dc8895df4dedec7f8e1103b0a51cdc635ae91d8a7b58b40"`
[INFO] [stdout] 5803d2846eb427bc4dc8895df4dedec7f8e1103b0a51cdc635ae91d8a7b58b40