[INFO] cloning repository https://github.com/FukurouHaiRiyo/RustPractice
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/FukurouHaiRiyo/RustPractice" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFukurouHaiRiyo%2FRustPractice", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFukurouHaiRiyo%2FRustPractice'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5706bc8901d8cc10ea7c1c6a9ae35e58cddcf96c
[INFO] checking FukurouHaiRiyo/RustPractice against try#e5b0618d996a6a3941e423fd3e170737b8dbdc92 for pr-151822
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFukurouHaiRiyo%2FRustPractice" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/FukurouHaiRiyo/RustPractice
[INFO] finished tweaking git repo https://github.com/FukurouHaiRiyo/RustPractice
[INFO] tweaked toml for git repo https://github.com/FukurouHaiRiyo/RustPractice written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/FukurouHaiRiyo/RustPractice on toolchain e5b0618d996a6a3941e423fd3e170737b8dbdc92
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e5b0618d996a6a3941e423fd3e170737b8dbdc92" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/FukurouHaiRiyo/RustPractice 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" "+e5b0618d996a6a3941e423fd3e170737b8dbdc92" "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-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:29356a839a4d14451438f794ce8414e707d72405f44418718d724d22562fe786" "/opt/rustwide/cargo-home/bin/cargo" "+e5b0618d996a6a3941e423fd3e170737b8dbdc92" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d799809b41d3c62b887558a8c05de2868b3606903a6c0b9f00407424192a64b2
[INFO] running `Command { std: "docker" "start" "-a" "d799809b41d3c62b887558a8c05de2868b3606903a6c0b9f00407424192a64b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d799809b41d3c62b887558a8c05de2868b3606903a6c0b9f00407424192a64b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d799809b41d3c62b887558a8c05de2868b3606903a6c0b9f00407424192a64b2", kill_on_drop: false }`
[INFO] [stdout] d799809b41d3c62b887558a8c05de2868b3606903a6c0b9f00407424192a64b2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:29356a839a4d14451438f794ce8414e707d72405f44418718d724d22562fe786" "/opt/rustwide/cargo-home/bin/cargo" "+e5b0618d996a6a3941e423fd3e170737b8dbdc92" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3ce40973facabe080f0fde51fd0e834013f2626581edbc53c79cc379030b2f79
[INFO] running `Command { std: "docker" "start" "-a" "3ce40973facabe080f0fde51fd0e834013f2626581edbc53c79cc379030b2f79", kill_on_drop: false }`
[INFO] [stderr]     Checking BackCodeList v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Write`
[INFO] [stdout]  --> src/main.rs:3:21
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::io::{self, Write};
[INFO] [stdout]   |                     ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Write`
[INFO] [stdout]  --> src/main.rs:3:21
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::io::{self, Write};
[INFO] [stdout]   |                     ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `capsuled_tasks` is never read
[INFO] [stdout]  --> src/back_code.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct BackCode{
[INFO] [stdout]   |            -------- field in this struct
[INFO] [stdout] 2 |     capsuled_tasks: usize,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `set_capsuled_stuff`, `set_capsule_stuff`, and `get_capsuled_tasks` are never used
[INFO] [stdout]   --> src/back_code.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout]  6 | impl BackCode{
[INFO] [stdout]    | ------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 16 |     pub fn set_capsuled_stuff(&mut self, capsuled_tasks: usize){
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 20 |     pub fn set_capsule_stuff(&mut self, capsule_stuff: Vec<String>){
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 42 |     pub fn get_capsuled_tasks(&self) -> usize {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `capsuled_tasks` is never read
[INFO] [stdout]  --> src/back_code.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct BackCode{
[INFO] [stdout]   |            -------- field in this struct
[INFO] [stdout] 2 |     capsuled_tasks: usize,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `set_capsuled_stuff`, `set_capsule_stuff`, and `get_capsuled_tasks` are never used
[INFO] [stdout]   --> src/back_code.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout]  6 | impl BackCode{
[INFO] [stdout]    | ------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 16 |     pub fn set_capsuled_stuff(&mut self, capsuled_tasks: usize){
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 20 |     pub fn set_capsule_stuff(&mut self, capsule_stuff: Vec<String>){
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 42 |     pub fn get_capsuled_tasks(&self) -> usize {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.10s
[INFO] running `Command { std: "docker" "inspect" "3ce40973facabe080f0fde51fd0e834013f2626581edbc53c79cc379030b2f79", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3ce40973facabe080f0fde51fd0e834013f2626581edbc53c79cc379030b2f79", kill_on_drop: false }`
[INFO] [stdout] 3ce40973facabe080f0fde51fd0e834013f2626581edbc53c79cc379030b2f79