[INFO] cloning repository https://github.com/codad5/learning-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/codad5/learning-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcodad5%2Flearning-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcodad5%2Flearning-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 71859d8049299c2418c1702f46b23df4b08a85c3
[INFO] checking codad5/learning-rust against master#32cd9114712a24010b0583624dc52ac302194128 for pr-143717
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcodad5%2Flearning-rust" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/codad5/learning-rust
[INFO] finished tweaking git repo https://github.com/codad5/learning-rust
[INFO] tweaked toml for git repo https://github.com/codad5/learning-rust written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/codad5/learning-rust on toolchain 32cd9114712a24010b0583624dc52ac302194128
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+32cd9114712a24010b0583624dc52ac302194128" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/codad5/learning-rust 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" "+32cd9114712a24010b0583624dc52ac302194128" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+32cd9114712a24010b0583624dc52ac302194128" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e21279ee9dd55c94a5832efa33878c55628bb3e7a83a307ce1088db2eff20332
[INFO] running `Command { std: "docker" "start" "-a" "e21279ee9dd55c94a5832efa33878c55628bb3e7a83a307ce1088db2eff20332", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e21279ee9dd55c94a5832efa33878c55628bb3e7a83a307ce1088db2eff20332", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e21279ee9dd55c94a5832efa33878c55628bb3e7a83a307ce1088db2eff20332", kill_on_drop: false }`
[INFO] [stdout] e21279ee9dd55c94a5832efa33878c55628bb3e7a83a307ce1088db2eff20332
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+32cd9114712a24010b0583624dc52ac302194128" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d5a128ba16d462e06163815077fd937b60bff9c7d9e8f9afd9c656f4fd8f961f
[INFO] running `Command { std: "docker" "start" "-a" "d5a128ba16d462e06163815077fd937b60bff9c7d9e8f9afd9c656f4fd8f961f", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.142
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.17
[INFO] [stderr]     Checking getrandom v0.2.9
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking learning-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `range`
[INFO] [stdout]   --> src/main.rs:29:9
[INFO] [stdout]    |
[INFO] [stdout] 29 |     let range  = 2..30;
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_range`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `range`
[INFO] [stdout]   --> src/main.rs:29:9
[INFO] [stdout]    |
[INFO] [stdout] 29 |     let range  = 2..30;
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_range`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `MAX_NUM` is never used
[INFO] [stdout]  --> src/main.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | const  MAX_NUM : u32 = 300;
[INFO] [stdout]   |        ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `MAX_NUM` is never used
[INFO] [stdout]  --> src/main.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | const  MAX_NUM : u32 = 300;
[INFO] [stdout]   |        ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_a_multiple_of` is never used
[INFO] [stdout]  --> src/topic/conditionals.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn is_a_multiple_of(numerator : i32, denominator : i32) -> bool 
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_even` is never used
[INFO] [stdout]  --> src/topic/conditionals.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub fn is_even(number: i32) -> bool
[INFO] [stdout]   |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `print_even_number_from` is never used
[INFO] [stdout]  --> src/topic/loops.rs:2:8
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub fn print_even_number_from(from : i32, end : i32)
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `print_odd_num_lesser_than` is never used
[INFO] [stdout]   --> src/topic/loops.rs:16:8
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub fn print_odd_num_lesser_than(num: usize)
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `count_words` is never used
[INFO] [stdout]   --> src/topic/loops.rs:28:8
[INFO] [stdout]    |
[INFO] [stdout] 28 | pub fn count_words(words : &Vec<&str>) -> Vec<usize> {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `print_range` is never used
[INFO] [stdout]   --> src/topic/loops.rs:38:8
[INFO] [stdout]    |
[INFO] [stdout] 38 | pub fn print_range(min: usize, max: usize)
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Direction` is never used
[INFO] [stdout]  --> src/topic/enums.rs:1:10
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub enum Direction {
[INFO] [stdout]   |          ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `whats_is_player_direction` is never used
[INFO] [stdout]  --> src/topic/enums.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub fn whats_is_player_direction(players_direction : Direction) 
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `age` and `gender` are never read
[INFO] [stdout]  --> src/topic/using_structs/human.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub struct Human<'a> {
[INFO] [stdout]   |            ----- fields in this struct
[INFO] [stdout] 3 |     pub name: String,
[INFO] [stdout] 4 |     pub age : u32,
[INFO] [stdout]   |         ^^^
[INFO] [stdout] 5 |     pub gender : &'a str,
[INFO] [stdout]   |         ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `can_drink` and `reset_age` are never used
[INFO] [stdout]   --> src/topic/using_structs/human.rs:18:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | impl<'a> Human<'a> {
[INFO] [stdout]    | ------------------ methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 18 |     pub fn can_drink(&self) -> bool 
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 24 |     fn reset_age (&mut self)
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_a_multiple_of` is never used
[INFO] [stdout]  --> src/topic/conditionals.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn is_a_multiple_of(numerator : i32, denominator : i32) -> bool 
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_even` is never used
[INFO] [stdout]  --> src/topic/conditionals.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub fn is_even(number: i32) -> bool
[INFO] [stdout]   |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `print_even_number_from` is never used
[INFO] [stdout]  --> src/topic/loops.rs:2:8
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub fn print_even_number_from(from : i32, end : i32)
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `print_odd_num_lesser_than` is never used
[INFO] [stdout]   --> src/topic/loops.rs:16:8
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub fn print_odd_num_lesser_than(num: usize)
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `count_words` is never used
[INFO] [stdout]   --> src/topic/loops.rs:28:8
[INFO] [stdout]    |
[INFO] [stdout] 28 | pub fn count_words(words : &Vec<&str>) -> Vec<usize> {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `print_range` is never used
[INFO] [stdout]   --> src/topic/loops.rs:38:8
[INFO] [stdout]    |
[INFO] [stdout] 38 | pub fn print_range(min: usize, max: usize)
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Direction` is never used
[INFO] [stdout]  --> src/topic/enums.rs:1:10
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub enum Direction {
[INFO] [stdout]   |          ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `whats_is_player_direction` is never used
[INFO] [stdout]  --> src/topic/enums.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub fn whats_is_player_direction(players_direction : Direction) 
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `age` and `gender` are never read
[INFO] [stdout]  --> src/topic/using_structs/human.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub struct Human<'a> {
[INFO] [stdout]   |            ----- fields in this struct
[INFO] [stdout] 3 |     pub name: String,
[INFO] [stdout] 4 |     pub age : u32,
[INFO] [stdout]   |         ^^^
[INFO] [stdout] 5 |     pub gender : &'a str,
[INFO] [stdout]   |         ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `can_drink` and `reset_age` are never used
[INFO] [stdout]   --> src/topic/using_structs/human.rs:18:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | impl<'a> Human<'a> {
[INFO] [stdout]    | ------------------ methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 18 |     pub fn can_drink(&self) -> bool 
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 24 |     fn reset_age (&mut self)
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.23s
[INFO] running `Command { std: "docker" "inspect" "d5a128ba16d462e06163815077fd937b60bff9c7d9e8f9afd9c656f4fd8f961f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d5a128ba16d462e06163815077fd937b60bff9c7d9e8f9afd9c656f4fd8f961f", kill_on_drop: false }`
[INFO] [stdout] d5a128ba16d462e06163815077fd937b60bff9c7d9e8f9afd9c656f4fd8f961f
