[INFO] cloning repository https://github.com/vremyavnikuda/offer_rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/vremyavnikuda/offer_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvremyavnikuda%2Foffer_rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvremyavnikuda%2Foffer_rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 39ce56eb2c0656aa6e9f7ff8327dff6419ef6432
[INFO] checking vremyavnikuda/offer_rust against try#1f308f12738d8cc40bb23bf0c8114b37c164bb49 for pr-137268
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvremyavnikuda%2Foffer_rust" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/vremyavnikuda/offer_rust on toolchain 1f308f12738d8cc40bb23bf0c8114b37c164bb49
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f308f12738d8cc40bb23bf0c8114b37c164bb49" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/vremyavnikuda/offer_rust
[INFO] finished tweaking git repo https://github.com/vremyavnikuda/offer_rust
[INFO] tweaked toml for git repo https://github.com/vremyavnikuda/offer_rust written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/vremyavnikuda/offer_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" "+1f308f12738d8cc40bb23bf0c8114b37c164bb49" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+1f308f12738d8cc40bb23bf0c8114b37c164bb49" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 70dcb0a8ac764627b9631d01e1b96c5aaf8475ab16f51fe5b43a81163a1aa1f0
[INFO] running `Command { std: "docker" "start" "-a" "70dcb0a8ac764627b9631d01e1b96c5aaf8475ab16f51fe5b43a81163a1aa1f0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "70dcb0a8ac764627b9631d01e1b96c5aaf8475ab16f51fe5b43a81163a1aa1f0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "70dcb0a8ac764627b9631d01e1b96c5aaf8475ab16f51fe5b43a81163a1aa1f0", kill_on_drop: false }`
[INFO] [stdout] 70dcb0a8ac764627b9631d01e1b96c5aaf8475ab16f51fe5b43a81163a1aa1f0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+1f308f12738d8cc40bb23bf0c8114b37c164bb49" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8d7b54dd166badff1b5c4d0a311eb352b9b47784f7313b144c755bcd308a2b1d
[INFO] running `Command { std: "docker" "start" "-a" "8d7b54dd166badff1b5c4d0a311eb352b9b47784f7313b144c755bcd308a2b1d", kill_on_drop: false }`
[INFO] [stderr]     Checking rust_learning v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::f32::consts::E`
[INFO] [stdout]  --> src/penguin_data.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::f32::consts::E;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ptr::null`
[INFO] [stdout]  --> src/penguin_data.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::ptr::null;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::mem::forget`
[INFO] [stdout]  --> src/count_duplicates.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::mem::forget;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::f32::consts::E`
[INFO] [stdout]  --> src/penguin_data.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::f32::consts::E;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ptr::null`
[INFO] [stdout]  --> src/penguin_data.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::ptr::null;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::mem::forget`
[INFO] [stdout]  --> src/count_duplicates.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::mem::forget;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io::BufRead`
[INFO] [stdout]  --> src/penguin_data.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::io::BufRead;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io::BufRead`
[INFO] [stdout]  --> src/penguin_data.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::io::BufRead;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `find_short` is never used
[INFO] [stdout]   --> src/main.rs:41:4
[INFO] [stdout]    |
[INFO] [stdout] 41 | fn find_short(s: &str) -> u32 {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `grow` is never used
[INFO] [stdout]   --> src/main.rs:60:4
[INFO] [stdout]    |
[INFO] [stdout] 60 | fn grow(nums: Vec<i32>) -> i32 {
[INFO] [stdout]    |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `boolean_to_string` is never used
[INFO] [stdout]   --> src/main.rs:64:4
[INFO] [stdout]    |
[INFO] [stdout] 64 | fn boolean_to_string(b: bool) -> String {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `multiply` is never used
[INFO] [stdout]   --> src/club.rs:62:15
[INFO] [stdout]    |
[INFO] [stdout] 62 | pub(crate) fn multiply(a:i32, b:i32) -> i32 {
[INFO] [stdout]    |               ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `count_sheep` is never used
[INFO] [stdout]   --> src/penguin_data.rs:29:4
[INFO] [stdout]    |
[INFO] [stdout] 29 | fn count_sheep(sheep:&[bool])-> u8 {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `count_by` is never used
[INFO] [stdout]   --> src/penguin_data.rs:32:4
[INFO] [stdout]    |
[INFO] [stdout] 32 | fn count_by(x:u32,n:u32)->Vec<u32>{
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `string_to_array` is never used
[INFO] [stdout]   --> src/string_to_array.rs:12:15
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub(crate) fn string_to_array(s:&str)-> Vec<String>{
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_volume_of_cuboid` is never used
[INFO] [stdout]  --> src/get_volume_of_cuboid.rs:1:15
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub(crate) fn get_volume_of_cuboid(length: f32,width:f32,height:f32) ->f32{
[INFO] [stdout]   |               ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `quarter_of` is never used
[INFO] [stdout]   --> src/guarter_of.rs:12:15
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub(crate) fn quarter_of(month:u8) ->u8{
[INFO] [stdout]    |               ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_square` is never used
[INFO] [stdout]   --> src/task/is_square.rs:14:15
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub(crate) fn is_square(n: i64) -> bool {
[INFO] [stdout]    |               ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `paperwork` is never used
[INFO] [stdout]  --> src/paperwork.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn paperwork(n:i16,m:i16)->u32{
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `positive_sum` is never used
[INFO] [stdout]  --> src/positive_sum.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn positive_sum(slice:&[i32]) -> i32{
[INFO] [stdout]   |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `two_sum` is never used
[INFO] [stdout]  --> src/two_sum.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn two_sum(numbers:&[i32],target:i32)-> (usize,usize){
[INFO] [stdout]   |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `count_duplicates` is never used
[INFO] [stdout]  --> src/count_duplicates.rs:3:4
[INFO] [stdout]   |
[INFO] [stdout] 3 | fn count_duplicates(text: &str) -> u32 {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `find_short` is never used
[INFO] [stdout]   --> src/main.rs:41:4
[INFO] [stdout]    |
[INFO] [stdout] 41 | fn find_short(s: &str) -> u32 {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `boolean_to_string` is never used
[INFO] [stdout]   --> src/main.rs:64:4
[INFO] [stdout]    |
[INFO] [stdout] 64 | fn boolean_to_string(b: bool) -> String {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `count_sheep` is never used
[INFO] [stdout]   --> src/penguin_data.rs:29:4
[INFO] [stdout]    |
[INFO] [stdout] 29 | fn count_sheep(sheep:&[bool])-> u8 {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `count_by` is never used
[INFO] [stdout]   --> src/penguin_data.rs:32:4
[INFO] [stdout]    |
[INFO] [stdout] 32 | fn count_by(x:u32,n:u32)->Vec<u32>{
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_volume_of_cuboid` is never used
[INFO] [stdout]  --> src/get_volume_of_cuboid.rs:1:15
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub(crate) fn get_volume_of_cuboid(length: f32,width:f32,height:f32) ->f32{
[INFO] [stdout]   |               ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `quarter_of` is never used
[INFO] [stdout]   --> src/guarter_of.rs:12:15
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub(crate) fn quarter_of(month:u8) ->u8{
[INFO] [stdout]    |               ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `count_duplicates` is never used
[INFO] [stdout]  --> src/count_duplicates.rs:3:4
[INFO] [stdout]   |
[INFO] [stdout] 3 | fn count_duplicates(text: &str) -> u32 {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.11s
[INFO] running `Command { std: "docker" "inspect" "8d7b54dd166badff1b5c4d0a311eb352b9b47784f7313b144c755bcd308a2b1d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8d7b54dd166badff1b5c4d0a311eb352b9b47784f7313b144c755bcd308a2b1d", kill_on_drop: false }`
[INFO] [stdout] 8d7b54dd166badff1b5c4d0a311eb352b9b47784f7313b144c755bcd308a2b1d