[INFO] cloning repository https://github.com/load28/awesome_rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/load28/awesome_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fload28%2Fawesome_rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fload28%2Fawesome_rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2712660f674dd53b3779c69dcafb54e680c147bc
[INFO] checking load28/awesome_rust against beta for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fload28%2Fawesome_rust" "/workspace/builds/worker-11/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-11/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/load28/awesome_rust on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/load28/awesome_rust
[INFO] finished tweaking git repo https://github.com/load28/awesome_rust
[INFO] tweaked toml for git repo https://github.com/load28/awesome_rust written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate git repo https://github.com/load28/awesome_rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "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] d99550bed5c3dba50685fe7f2cb94763af0371fde6b1a7ac8a09c67633603d77
[INFO] running `Command { std: "docker" "start" "-a" "d99550bed5c3dba50685fe7f2cb94763af0371fde6b1a7ac8a09c67633603d77", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d99550bed5c3dba50685fe7f2cb94763af0371fde6b1a7ac8a09c67633603d77", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d99550bed5c3dba50685fe7f2cb94763af0371fde6b1a7ac8a09c67633603d77", kill_on_drop: false }`
[INFO] [stdout] d99550bed5c3dba50685fe7f2cb94763af0371fde6b1a7ac8a09c67633603d77
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7a164f3a17daaf3db64da06311a301e50d3cb394147a4f610504dacc36fa9109
[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" "7a164f3a17daaf3db64da06311a301e50d3cb394147a4f610504dacc36fa9109", kill_on_drop: false }`
[INFO] [stderr]     Checking untitled1 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `one`
[INFO] [stdout]   --> src/main.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |     let one = a[0];
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_one`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `two`
[INFO] [stdout]   --> src/main.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout] 12 |     let two = a[1];
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_two`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]   --> src/main.rs:96:9
[INFO] [stdout]    |
[INFO] [stdout] 96 |     let s = "hello"; // 스트링 리터럴 (문자열은 고정된 크기 - 컴파일 타입에서 고정된 사이즈를 가지고 있기 때문에 스택에 저장 !, String 타입                                         ...
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s4`
[INFO] [stdout]    --> src/main.rs:105:9
[INFO] [stdout]     |
[INFO] [stdout] 105 |     let s4 = s3.clone(); // 클론을 통해서 깊은 복사를 수행 할 수 있음
[INFO] [stdout]     |         ^^ help: if this is intentional, prefix it with an underscore: `_s4`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]    --> src/main.rs:109:9
[INFO] [stdout]     |
[INFO] [stdout] 109 |     let y = x;
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `b`
[INFO] [stdout]    --> src/main.rs:167:9
[INFO] [stdout]     |
[INFO] [stdout] 167 |     let b = &a[1..]; // 스트링 리터럴이 불변인 이유는 불변 참조자를 통해서 슬라이스가 만들어지기 때문이다                                 ...
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `none`
[INFO] [stdout]   --> src/rust_enum.rs:61:7
[INFO] [stdout]    |
[INFO] [stdout] 61 |   let none: Option<i32> = None;
[INFO] [stdout]    |       ^^^^ help: if this is intentional, prefix it with an underscore: `_none`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `White`
[INFO] [stdout]   --> src/rust_enum.rs:38:3
[INFO] [stdout]    |
[INFO] [stdout] 38 |   White(i8, i8, i8),
[INFO] [stdout]    |   ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Green`
[INFO] [stdout]   --> src/rust_enum.rs:40:3
[INFO] [stdout]    |
[INFO] [stdout] 40 |   Green(String),
[INFO] [stdout]    |   ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Palate`
[INFO] [stdout]   --> src/rust_enum.rs:41:3
[INFO] [stdout]    |
[INFO] [stdout] 41 | /   Palate {
[INFO] [stdout] 42 | |     color: String,
[INFO] [stdout] 43 | |     opacity: i8
[INFO] [stdout] 44 | |   }
[INFO] [stdout]    | |___^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `take_ownership`
[INFO] [stdout]    --> src/main.rs:135:4
[INFO] [stdout]     |
[INFO] [stdout] 135 | fn take_ownership(some: String) -> (String, i32) {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused arithmetic operation that must be used
[INFO] [stdout]   --> src/main.rs:36:5
[INFO] [stdout]    |
[INFO] [stdout] 36 |     10 + 1; // 더하기 연산도 하나의 표현식이기 때문에 결과를 반환한다
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_ipAddr` should have a snake case name
[INFO] [stdout]   --> src/rust_enum.rs:24:4
[INFO] [stdout]    |
[INFO] [stdout] 24 | fn get_ipAddr() -> IpAddrKind {
[INFO] [stdout]    |    ^^^^^^^^^^ help: convert the identifier to snake case: `get_ip_addr`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `one`
[INFO] [stdout]   --> src/main.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |     let one = a[0];
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_one`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `two`
[INFO] [stdout]   --> src/main.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout] 12 |     let two = a[1];
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_two`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]   --> src/main.rs:96:9
[INFO] [stdout]    |
[INFO] [stdout] 96 |     let s = "hello"; // 스트링 리터럴 (문자열은 고정된 크기 - 컴파일 타입에서 고정된 사이즈를 가지고 있기 때문에 스택에 저장 !, String 타입                                         ...
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s4`
[INFO] [stdout]    --> src/main.rs:105:9
[INFO] [stdout]     |
[INFO] [stdout] 105 |     let s4 = s3.clone(); // 클론을 통해서 깊은 복사를 수행 할 수 있음
[INFO] [stdout]     |         ^^ help: if this is intentional, prefix it with an underscore: `_s4`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]    --> src/main.rs:109:9
[INFO] [stdout]     |
[INFO] [stdout] 109 |     let y = x;
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `b`
[INFO] [stdout]    --> src/main.rs:167:9
[INFO] [stdout]     |
[INFO] [stdout] 167 |     let b = &a[1..]; // 스트링 리터럴이 불변인 이유는 불변 참조자를 통해서 슬라이스가 만들어지기 때문이다                                 ...
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `none`
[INFO] [stdout]   --> src/rust_enum.rs:61:7
[INFO] [stdout]    |
[INFO] [stdout] 61 |   let none: Option<i32> = None;
[INFO] [stdout]    |       ^^^^ help: if this is intentional, prefix it with an underscore: `_none`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 13 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `White`
[INFO] [stdout]   --> src/rust_enum.rs:38:3
[INFO] [stdout]    |
[INFO] [stdout] 38 |   White(i8, i8, i8),
[INFO] [stdout]    |   ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Green`
[INFO] [stdout]   --> src/rust_enum.rs:40:3
[INFO] [stdout]    |
[INFO] [stdout] 40 |   Green(String),
[INFO] [stdout]    |   ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Palate`
[INFO] [stdout]   --> src/rust_enum.rs:41:3
[INFO] [stdout]    |
[INFO] [stdout] 41 | /   Palate {
[INFO] [stdout] 42 | |     color: String,
[INFO] [stdout] 43 | |     opacity: i8
[INFO] [stdout] 44 | |   }
[INFO] [stdout]    | |___^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `take_ownership`
[INFO] [stdout]    --> src/main.rs:135:4
[INFO] [stdout]     |
[INFO] [stdout] 135 | fn take_ownership(some: String) -> (String, i32) {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused arithmetic operation that must be used
[INFO] [stdout]   --> src/main.rs:36:5
[INFO] [stdout]    |
[INFO] [stdout] 36 |     10 + 1; // 더하기 연산도 하나의 표현식이기 때문에 결과를 반환한다
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_ipAddr` should have a snake case name
[INFO] [stdout]   --> src/rust_enum.rs:24:4
[INFO] [stdout]    |
[INFO] [stdout] 24 | fn get_ipAddr() -> IpAddrKind {
[INFO] [stdout]    |    ^^^^^^^^^^ help: convert the identifier to snake case: `get_ip_addr`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 13 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.57s
[INFO] running `Command { std: "docker" "inspect" "7a164f3a17daaf3db64da06311a301e50d3cb394147a4f610504dacc36fa9109", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7a164f3a17daaf3db64da06311a301e50d3cb394147a4f610504dacc36fa9109", kill_on_drop: false }`
[INFO] [stdout] 7a164f3a17daaf3db64da06311a301e50d3cb394147a4f610504dacc36fa9109