[INFO] cloning repository https://github.com/hello2dj/rust-practice [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/hello2dj/rust-practice" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhello2dj%2Frust-practice", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhello2dj%2Frust-practice'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] ce0d5883667b72104cdd70b2882319ddf6fdb47a [INFO] checking hello2dj/rust-practice against master#3aedcf06b73fc36feeebca3d579e1d2a6c40acc5 for pr-65819 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhello2dj%2Frust-practice" "/workspace/builds/worker-0/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/hello2dj/rust-practice on toolchain 3aedcf06b73fc36feeebca3d579e1d2a6c40acc5 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/hello2dj/rust-practice [INFO] finished tweaking git repo https://github.com/hello2dj/rust-practice [INFO] tweaked toml for git repo https://github.com/hello2dj/rust-practice written to /workspace/builds/worker-0/source/Cargo.toml [INFO] crate git repo https://github.com/hello2dj/rust-practice already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 238cc9e60c8ca640d0b56b7bc03a0b02fff95529d6b0b8ab1c3893fbc424ad44 [INFO] running `Command { std: "docker" "start" "-a" "238cc9e60c8ca640d0b56b7bc03a0b02fff95529d6b0b8ab1c3893fbc424ad44", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "238cc9e60c8ca640d0b56b7bc03a0b02fff95529d6b0b8ab1c3893fbc424ad44", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "238cc9e60c8ca640d0b56b7bc03a0b02fff95529d6b0b8ab1c3893fbc424ad44", kill_on_drop: false }` [INFO] [stdout] 238cc9e60c8ca640d0b56b7bc03a0b02fff95529d6b0b8ab1c3893fbc424ad44 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 4a94776d90318b79ad84fb835012295d0cad68b587654347681ccce638114c0e [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" "4a94776d90318b79ad84fb835012295d0cad68b587654347681ccce638114c0e", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.44 [INFO] [stderr] Checking cfg-if v0.1.6 [INFO] [stderr] Compiling semver-parser v0.7.0 [INFO] [stderr] Checking rand_core v0.3.0 [INFO] [stderr] Checking lazy_static v1.2.0 [INFO] [stderr] Checking byteorder v1.2.7 [INFO] [stderr] Checking void v1.0.2 [INFO] [stderr] Checking futures v0.1.25 [INFO] [stderr] Checking scopeguard v0.3.3 [INFO] [stderr] Compiling num-traits v0.2.6 [INFO] [stderr] Checking slab v0.4.1 [INFO] [stderr] Checking lazycell v1.2.0 [INFO] [stderr] Compiling typenum v1.10.0 [INFO] [stderr] Compiling serde v1.0.80 [INFO] [stderr] Compiling num-integer v0.1.39 [INFO] [stderr] Checking nodrop v0.1.13 [INFO] [stderr] Compiling cc v1.0.25 [INFO] [stderr] Checking memoffset v0.2.1 [INFO] [stderr] Compiling ryu v0.2.7 [INFO] [stderr] Compiling regex v1.0.6 [INFO] [stderr] Compiling flate2-crc v0.1.1 [INFO] [stderr] Checking byte-tools v0.2.0 [INFO] [stderr] Compiling num-bigint v0.2.1 [INFO] [stderr] Checking arrayref v0.3.5 [INFO] [stderr] Compiling unicode-xid v0.1.0 [INFO] [stderr] Checking ucd-util v0.1.3 [INFO] [stderr] Compiling nix v0.11.0 [INFO] [stderr] Checking unicode-normalization v0.1.7 [INFO] [stderr] Checking itoa v0.4.3 [INFO] [stderr] Checking safemem v0.3.0 [INFO] [stderr] Checking utf8-ranges v1.0.2 [INFO] [stderr] Checking percent-encoding v1.0.1 [INFO] [stderr] Checking bit-vec v0.5.0 [INFO] [stderr] Checking bufstream v0.1.4 [INFO] [stderr] Checking fnv v1.0.6 [INFO] [stderr] Compiling memchr v2.1.1 [INFO] [stderr] Checking owning_ref v0.4.0 [INFO] [stderr] Checking log v0.4.6 [INFO] [stderr] Checking crossbeam-utils v0.6.1 [INFO] [stderr] Checking uuid v0.6.5 [INFO] [stderr] Checking unreachable v1.0.0 [INFO] [stderr] Checking thread_local v0.3.6 [INFO] [stderr] Checking arrayvec v0.4.8 [INFO] [stderr] Compiling semver v0.9.0 [INFO] [stderr] Checking block-buffer v0.3.3 [INFO] [stderr] Checking rand_core v0.2.2 [INFO] [stderr] Checking rand_xorshift v0.1.0 [INFO] [stderr] Checking rand_hc v0.1.0 [INFO] [stderr] Checking rand_isaac v0.1.1 [INFO] [stderr] Checking regex-syntax v0.6.3 [INFO] [stderr] Checking base64 v0.9.3 [INFO] [stderr] Compiling proc-macro2 v0.4.27 [INFO] [stderr] Checking smallvec v0.6.6 [INFO] [stderr] Checking lock_api v0.1.5 [INFO] [stderr] Checking crossbeam-epoch v0.6.1 [INFO] [stderr] Compiling rustc_version v0.2.3 [INFO] [stderr] Checking quote v0.6.11 [INFO] [stderr] Checking syn v0.15.26 [INFO] [stderr] Checking crossbeam-deque v0.6.2 [INFO] [stderr] Checking tokio-executor v0.1.5 [INFO] [stderr] Compiling parking_lot_core v0.3.1 [INFO] [stderr] Compiling rand_chacha v0.1.0 [INFO] [stderr] Compiling rand_pcg v0.1.1 [INFO] [stderr] Compiling rand v0.6.1 [INFO] [stderr] Checking tokio-timer v0.2.8 [INFO] [stderr] Checking tokio-current-thread v0.1.4 [INFO] [stderr] Checking iovec v0.1.2 [INFO] [stderr] Checking rand v0.5.5 [INFO] [stderr] Checking net2 v0.2.33 [INFO] [stderr] Checking num_cpus v1.8.0 [INFO] [stderr] Checking time v0.1.40 [INFO] [stderr] Compiling miniz-sys v0.1.11 [INFO] [stderr] Checking bytes v0.4.11 [INFO] [stderr] Checking generic-array v0.9.0 [INFO] [stderr] Checking idna v0.1.5 [INFO] [stderr] Checking atoi v0.2.3 [INFO] [stderr] Checking checked v0.5.0 [INFO] [stderr] Checking mio v0.6.16 [INFO] [stderr] Checking aho-corasick v0.6.9 [INFO] [stderr] Checking csv-core v0.1.5 [INFO] [stderr] Checking digest v0.7.6 [INFO] [stderr] Checking chrono v0.4.6 [INFO] [stderr] Checking sha2 v0.7.1 [INFO] [stderr] Checking tokio-io v0.1.10 [INFO] [stderr] Checking url v1.7.2 [INFO] [stderr] Checking flate2 v1.0.5 [INFO] [stderr] Checking twox-hash v1.1.1 [INFO] [stderr] Checking mio-uds v0.6.7 [INFO] [stderr] Checking parking_lot v0.6.4 [INFO] [stderr] Checking tokio-codec v0.1.1 [INFO] [stderr] Checking tokio-reactor v0.1.7 [INFO] [stderr] Checking tokio-uds v0.2.4 [INFO] [stderr] Checking tokio-tcp v0.1.2 [INFO] [stderr] Checking tokio-udp v0.1.3 [INFO] [stderr] Checking tokio-threadpool v0.1.9 [INFO] [stderr] Checking tokio-fs v0.1.4 [INFO] [stderr] Checking tokio v0.1.13 [INFO] [stderr] Checking serde_json v1.0.33 [INFO] [stderr] Checking csv v1.0.5 [INFO] [stderr] Compiling serde_derive v1.0.87 [INFO] [stderr] Checking mysql_common v0.9.2 [INFO] [stderr] Checking mysql v14.1.1 [INFO] [stderr] Checking future v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `std::process` [INFO] [stdout] --> src/csv.rs:8:5 [INFO] [stdout] | [INFO] [stdout] 8 | use std::process; [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::error::Error` [INFO] [stdout] --> src/acronym.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::error::Error; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::iter::FromIterator` [INFO] [stdout] --> src/acronym.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 2 | use std::iter::FromIterator; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::borrow::Borrow` [INFO] [stdout] --> src/null.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | use std::borrow::Borrow; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::process` [INFO] [stdout] --> src/csv.rs:8:5 [INFO] [stdout] | [INFO] [stdout] 8 | use std::process; [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::error::Error` [INFO] [stdout] --> src/acronym.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::error::Error; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::iter::FromIterator` [INFO] [stdout] --> src/acronym.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 2 | use std::iter::FromIterator; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::borrow::Borrow` [INFO] [stdout] --> src/null.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | use std::borrow::Borrow; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `c` [INFO] [stdout] --> src/acronym.rs:14:9 [INFO] [stdout] | [INFO] [stdout] 14 | let c = input.split(" "); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_c` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `a` [INFO] [stdout] --> src/acronym.rs:16:9 [INFO] [stdout] | [INFO] [stdout] 16 | let a = input.split(" ") [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_a` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `data` [INFO] [stdout] --> src/null.rs:43:9 [INFO] [stdout] | [INFO] [stdout] 43 | let data = foo(); [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_data` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/fizzbuzz.rs:22:13 [INFO] [stdout] | [INFO] [stdout] 22 | let mut result: Cow = if i%15 == 0 { [INFO] [stdout] | ----^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `c` [INFO] [stdout] --> src/acronym.rs:14:9 [INFO] [stdout] | [INFO] [stdout] 14 | let c = input.split(" "); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_c` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `a` [INFO] [stdout] --> src/acronym.rs:16:9 [INFO] [stdout] | [INFO] [stdout] 16 | let a = input.split(" ") [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_a` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/acronym.rs:8:9 [INFO] [stdout] | [INFO] [stdout] 8 | let mut words = String::new(); [INFO] [stdout] | ----^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/acronym.rs:27:9 [INFO] [stdout] | [INFO] [stdout] 27 | let mut a = Some(String::new()).take(); [INFO] [stdout] | ----^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/null.rs:17:13 [INFO] [stdout] | [INFO] [stdout] 17 | let mut m = HashMap::new(); [INFO] [stdout] | ----^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `test` [INFO] [stdout] --> src/string_test.rs:2:8 [INFO] [stdout] | [INFO] [stdout] 2 | pub fn test() { [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `fizz_buzz_V2` [INFO] [stdout] --> src/fizzbuzz.rs:20:8 [INFO] [stdout] | [INFO] [stdout] 20 | pub fn fizz_buzz_V2() { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Fizz` [INFO] [stdout] --> src/fizzbuzz.rs:39:5 [INFO] [stdout] | [INFO] [stdout] 39 | Fizz, [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Buzz` [INFO] [stdout] --> src/fizzbuzz.rs:40:5 [INFO] [stdout] | [INFO] [stdout] 40 | Buzz, [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `FizzBuzz` [INFO] [stdout] --> src/fizzbuzz.rs:41:5 [INFO] [stdout] | [INFO] [stdout] 41 | FizzBuzz, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Number` [INFO] [stdout] --> src/fizzbuzz.rs:42:5 [INFO] [stdout] | [INFO] [stdout] 42 | Number(i32), [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `fizz_buzz_V3` [INFO] [stdout] --> src/fizzbuzz.rs:62:4 [INFO] [stdout] | [INFO] [stdout] 62 | fn fizz_buzz_V3() { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `parse` [INFO] [stdout] --> src/csv.rs:10:8 [INFO] [stdout] | [INFO] [stdout] 10 | pub fn parse() -> Result<(), Box>{ [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `run` [INFO] [stdout] --> src/csv.rs:19:8 [INFO] [stdout] | [INFO] [stdout] 19 | pub fn run() -> Result<(), Box> { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `get_first_arg` [INFO] [stdout] --> src/csv.rs:30:4 [INFO] [stdout] | [INFO] [stdout] 30 | fn get_first_arg() -> Result>{ [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/fizzbuzz.rs:22:13 [INFO] [stdout] | [INFO] [stdout] 22 | let mut result: Cow = if i%15 == 0 { [INFO] [stdout] | ----^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the feature `dbg_macro` has been stable since 1.32.0 and no longer requires an attribute to enable [INFO] [stdout] --> src/main.rs:2:12 [INFO] [stdout] | [INFO] [stdout] 2 | #![feature(dbg_macro)] [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(stable_features)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/acronym.rs:8:9 [INFO] [stdout] | [INFO] [stdout] 8 | let mut words = String::new(); [INFO] [stdout] | ----^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/acronym.rs:27:9 [INFO] [stdout] | [INFO] [stdout] 27 | let mut a = Some(String::new()).take(); [INFO] [stdout] | ----^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/null.rs:17:13 [INFO] [stdout] | [INFO] [stdout] 17 | let mut m = HashMap::new(); [INFO] [stdout] | ----^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `test` [INFO] [stdout] --> src/string_test.rs:2:8 [INFO] [stdout] | [INFO] [stdout] 2 | pub fn test() { [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `fizz_buzz` [INFO] [stdout] --> src/fizzbuzz.rs:1:8 [INFO] [stdout] | [INFO] [stdout] 1 | pub fn fizz_buzz() { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `fizz_buzz_V2` [INFO] [stdout] --> src/fizzbuzz.rs:20:8 [INFO] [stdout] | [INFO] [stdout] 20 | pub fn fizz_buzz_V2() { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Fizz` [INFO] [stdout] --> src/fizzbuzz.rs:39:5 [INFO] [stdout] | [INFO] [stdout] 39 | Fizz, [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Buzz` [INFO] [stdout] --> src/fizzbuzz.rs:40:5 [INFO] [stdout] | [INFO] [stdout] 40 | Buzz, [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `FizzBuzz` [INFO] [stdout] --> src/fizzbuzz.rs:41:5 [INFO] [stdout] | [INFO] [stdout] 41 | FizzBuzz, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Number` [INFO] [stdout] --> src/fizzbuzz.rs:42:5 [INFO] [stdout] | [INFO] [stdout] 42 | Number(i32), [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `fizz_buzz_V3` [INFO] [stdout] --> src/fizzbuzz.rs:62:4 [INFO] [stdout] | [INFO] [stdout] 62 | fn fizz_buzz_V3() { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `parse` [INFO] [stdout] --> src/csv.rs:10:8 [INFO] [stdout] | [INFO] [stdout] 10 | pub fn parse() -> Result<(), Box>{ [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `run` [INFO] [stdout] --> src/csv.rs:19:8 [INFO] [stdout] | [INFO] [stdout] 19 | pub fn run() -> Result<(), Box> { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `get_first_arg` [INFO] [stdout] --> src/csv.rs:30:4 [INFO] [stdout] | [INFO] [stdout] 30 | fn get_first_arg() -> Result>{ [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `foo` [INFO] [stdout] --> src/null.rs:5:8 [INFO] [stdout] | [INFO] [stdout] 5 | pub fn foo() -> Vec { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `capitalize` [INFO] [stdout] --> src/null.rs:22:4 [INFO] [stdout] | [INFO] [stdout] 22 | fn capitalize(data: &mut [char]) { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `process_or_default` [INFO] [stdout] --> src/null.rs:29:4 [INFO] [stdout] | [INFO] [stdout] 29 | fn process_or_default(key: &str) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the feature `dbg_macro` has been stable since 1.32.0 and no longer requires an attribute to enable [INFO] [stdout] --> src/main.rs:2:12 [INFO] [stdout] | [INFO] [stdout] 2 | #![feature(dbg_macro)] [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(stable_features)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:19:5 [INFO] [stdout] | [INFO] [stdout] 19 | acronym::acronym("dengjie de"); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:19:5 [INFO] [stdout] | [INFO] [stdout] 19 | acronym::acronym("dengjie de"); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `fizz_buzz_V2` should have a snake case name [INFO] [stdout] --> src/fizzbuzz.rs:20:8 [INFO] [stdout] | [INFO] [stdout] 20 | pub fn fizz_buzz_V2() { [INFO] [stdout] | ^^^^^^^^^^^^ help: convert the identifier to snake case (notice the capitalization): `fizz_buzz_v2` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_snake_case)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `fizz_buzz_V3` should have a snake case name [INFO] [stdout] --> src/fizzbuzz.rs:62:4 [INFO] [stdout] | [INFO] [stdout] 62 | fn fizz_buzz_V3() { [INFO] [stdout] | ^^^^^^^^^^^^ help: convert the identifier to snake case (notice the capitalization): `fizz_buzz_v3` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `fizz_buzz_V2` should have a snake case name [INFO] [stdout] --> src/fizzbuzz.rs:20:8 [INFO] [stdout] | [INFO] [stdout] 20 | pub fn fizz_buzz_V2() { [INFO] [stdout] | ^^^^^^^^^^^^ help: convert the identifier to snake case (notice the capitalization): `fizz_buzz_v2` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_snake_case)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `fizz_buzz_V3` should have a snake case name [INFO] [stdout] --> src/fizzbuzz.rs:62:4 [INFO] [stdout] | [INFO] [stdout] 62 | fn fizz_buzz_V3() { [INFO] [stdout] | ^^^^^^^^^^^^ help: convert the identifier to snake case (notice the capitalization): `fizz_buzz_v3` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 25 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 28 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 58.28s [INFO] running `Command { std: "docker" "inspect" "4a94776d90318b79ad84fb835012295d0cad68b587654347681ccce638114c0e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4a94776d90318b79ad84fb835012295d0cad68b587654347681ccce638114c0e", kill_on_drop: false }` [INFO] [stdout] 4a94776d90318b79ad84fb835012295d0cad68b587654347681ccce638114c0e