[INFO] cloning repository https://github.com/WiZ3910/hello_rs [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/WiZ3910/hello_rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FWiZ3910%2Fhello_rs", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FWiZ3910%2Fhello_rs'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 18f56c29765b55dca77d865f6f533db1861a2970 [INFO] testing WiZ3910/hello_rs against beta-2022-04-10 for beta-1.61-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FWiZ3910%2Fhello_rs" "/workspace/builds/worker-13/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/WiZ3910/hello_rs on toolchain beta-2022-04-10 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/WiZ3910/hello_rs [INFO] finished tweaking git repo https://github.com/WiZ3910/hello_rs [INFO] tweaked toml for git repo https://github.com/WiZ3910/hello_rs written to /workspace/builds/worker-13/source/Cargo.toml [INFO] crate git repo https://github.com/WiZ3910/hello_rs already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "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] c3bf61bb57b306511a232e5be6e4057a92cce49857529bea1a8aa284ae128ac6 [INFO] running `Command { std: "docker" "start" "-a" "c3bf61bb57b306511a232e5be6e4057a92cce49857529bea1a8aa284ae128ac6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "c3bf61bb57b306511a232e5be6e4057a92cce49857529bea1a8aa284ae128ac6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c3bf61bb57b306511a232e5be6e4057a92cce49857529bea1a8aa284ae128ac6", kill_on_drop: false }` [INFO] [stdout] c3bf61bb57b306511a232e5be6e4057a92cce49857529bea1a8aa284ae128ac6 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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=warn" "-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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", 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] ca46c9c33bc43407348dea02b0ed109ca8a4e59066c1ae7a56d23f2acef08354 [INFO] running `Command { std: "docker" "start" "-a" "ca46c9c33bc43407348dea02b0ed109ca8a4e59066c1ae7a56d23f2acef08354", kill_on_drop: false }` [INFO] [stderr] Compiling futures-io v0.3.12 [INFO] [stderr] Compiling libc v0.2.82 [INFO] [stderr] Compiling log v0.4.13 [INFO] [stderr] Compiling fastrand v1.4.0 [INFO] [stderr] Compiling vec-arena v1.0.0 [INFO] [stderr] Compiling futures-sink v0.3.12 [INFO] [stderr] Compiling pin-project-lite v0.1.11 [INFO] [stderr] Compiling async-lock v2.3.0 [INFO] [stderr] Compiling async-channel v1.5.1 [INFO] [stderr] Compiling futures-macro v0.3.12 [INFO] [stderr] Compiling tokio-macros v0.2.6 [INFO] [stderr] Compiling futures-channel v0.3.12 [INFO] [stderr] Compiling futures-lite v1.11.3 [INFO] [stderr] Compiling kv-log-macro v1.0.7 [INFO] [stderr] Compiling polling v2.0.2 [INFO] [stderr] Compiling nb-connect v1.0.2 [INFO] [stderr] Compiling num_cpus v1.13.0 [INFO] [stderr] Compiling async-io v1.3.1 [INFO] [stderr] Compiling blocking v1.0.2 [INFO] [stderr] Compiling async-executor v1.4.0 [INFO] [stderr] Compiling futures-util v0.3.12 [INFO] [stderr] Compiling tokio v0.2.24 [INFO] [stderr] Compiling async-global-executor v2.0.2 [INFO] [stderr] Compiling async-std v1.9.0 [INFO] [stderr] Compiling futures-executor v0.3.12 [INFO] [stderr] Compiling futures v0.3.12 [INFO] [stderr] Compiling hello v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `core::future::Future` [INFO] [stdout] --> src/main.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use core::future::Future; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary trailing semicolon [INFO] [stdout] --> src/main.rs:167:6 [INFO] [stdout] | [INFO] [stdout] 167 | }; [INFO] [stdout] | ^ help: remove this semicolon [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(redundant_semicolons)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary trailing semicolon [INFO] [stdout] --> src/main.rs:179:6 [INFO] [stdout] | [INFO] [stdout] 179 | }; [INFO] [stdout] | ^ help: remove this semicolon [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `Future` is imported redundantly [INFO] [stdout] --> src/main.rs:473:9 [INFO] [stdout] | [INFO] [stdout] 1 | use core::future::Future; [INFO] [stdout] | -------------------- the item `Future` is already imported here [INFO] [stdout] ... [INFO] [stdout] 473 | use std::future::Future; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `Context` [INFO] [stdout] --> src/main.rs:475:21 [INFO] [stdout] | [INFO] [stdout] 475 | use std::task::{Context, Poll}; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `s3` [INFO] [stdout] --> src/main.rs:8:9 [INFO] [stdout] | [INFO] [stdout] 8 | let s3:String = s2.to_string(); //&str --> string [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_s3` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `p` [INFO] [stdout] --> src/main.rs:21:9 [INFO] [stdout] | [INFO] [stdout] 21 | let p = Person { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_p` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `literal` [INFO] [stdout] --> src/main.rs:26:9 [INFO] [stdout] | [INFO] [stdout] 26 | let literal = "Hello"; [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_literal` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `e1` [INFO] [stdout] --> src/main.rs:34:9 [INFO] [stdout] | [INFO] [stdout] 34 | let e1 = Event::Quit; [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_e1` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `e2` [INFO] [stdout] --> src/main.rs:35:9 [INFO] [stdout] | [INFO] [stdout] 35 | let e2 = Event::MouseDown { x:10, y:10}; [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_e2` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `next_result` [INFO] [stdout] --> src/main.rs:61:9 [INFO] [stdout] | [INFO] [stdout] 61 | let next_result = result.and_then(func); [INFO] [stdout] | ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_next_result` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `result` [INFO] [stdout] --> src/main.rs:62:9 [INFO] [stdout] | [INFO] [stdout] 62 | let result : Result = Err("error".to_string()); // func() は実行されない [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_result` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `v1` [INFO] [stdout] --> src/main.rs:70:9 [INFO] [stdout] | [INFO] [stdout] 70 | let v1 = vec![1,2,3,4,5]; [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_v1` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `v2` [INFO] [stdout] --> src/main.rs:71:9 [INFO] [stdout] | [INFO] [stdout] 71 | let v2 = vec![0;5]; [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_v2` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `result` [INFO] [stdout] --> src/main.rs:95:9 [INFO] [stdout] | [INFO] [stdout] 95 | let result = if 0 <= number { number } else {-number}; [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_result` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `result` [INFO] [stdout] --> src/main.rs:98:9 [INFO] [stdout] | [INFO] [stdout] 98 | let result = loop { [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_result` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `count` [INFO] [stdout] --> src/main.rs:112:9 [INFO] [stdout] | [INFO] [stdout] 112 | let count : i32; [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_count` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `result_number` [INFO] [stdout] --> src/main.rs:152:9 [INFO] [stdout] | [INFO] [stdout] 152 | let result_number = match result { [INFO] [stdout] | ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_result_number` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `v` [INFO] [stdout] --> src/main.rs:225:9 [INFO] [stdout] | [INFO] [stdout] 225 | let v = vec![1,2,3]; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_v` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `tp` [INFO] [stdout] --> src/main.rs:362:9 [INFO] [stdout] | [INFO] [stdout] 362 | let tp = ("I'm", Emotion::Happy); [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_tp` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `x` [INFO] [stdout] --> src/main.rs:516:52 [INFO] [stdout] | [INFO] [stdout] 516 | async fn send_to_another_thread_with_borrowing(x : &i32) -> i32 { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_x` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:393:9 [INFO] [stdout] | [INFO] [stdout] 393 | let mut x = 5; [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: variant is never constructed: `KeyDown` [INFO] [stdout] --> src/main.rs:30:9 [INFO] [stdout] | [INFO] [stdout] 30 | KeyDown(u8), [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `x` [INFO] [stdout] --> src/main.rs:31:20 [INFO] [stdout] | [INFO] [stdout] 31 | MouseDown {x:i32, y:i32}, [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `y` [INFO] [stdout] --> src/main.rs:31:27 [INFO] [stdout] | [INFO] [stdout] 31 | MouseDown {x:i32, y:i32}, [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `error_handling` [INFO] [stdout] --> src/main.rs:64:8 [INFO] [stdout] | [INFO] [stdout] 64 | fn error_handling(result : Result) -> Result { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Blue` [INFO] [stdout] --> src/main.rs:142:13 [INFO] [stdout] | [INFO] [stdout] 142 | Red,Blue,Green, [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Green` [INFO] [stdout] --> src/main.rs:142:18 [INFO] [stdout] | [INFO] [stdout] 142 | Red,Blue,Green, [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `state` [INFO] [stdout] --> src/main.rs:244:9 [INFO] [stdout] | [INFO] [stdout] 244 | state : Emotion, [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `f` [INFO] [stdout] --> src/main.rs:254:8 [INFO] [stdout] | [INFO] [stdout] 254 | fn f(x : usize) -> &'static str { [INFO] [stdout] | ^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `make_tuple` [INFO] [stdout] --> src/main.rs:359:8 [INFO] [stdout] | [INFO] [stdout] 359 | fn make_tuple(t: T, s:S) -> (T,S) { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `some_great_function` [INFO] [stdout] --> src/main.rs:507:8 [INFO] [stdout] | [INFO] [stdout] 507 | fn some_great_function() -> impl Future { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `send_to_another_thread_with_borrowing` [INFO] [stdout] --> src/main.rs:516:14 [INFO] [stdout] | [INFO] [stdout] 516 | async fn send_to_another_thread_with_borrowing(x : &i32) -> i32 { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Anger` [INFO] [stdout] --> src/main.rs:582:5 [INFO] [stdout] | [INFO] [stdout] 582 | Anger, [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:219:5 [INFO] [stdout] | [INFO] [stdout] 219 | write!(&mut w, "{}", "ABC"); [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] = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:220:5 [INFO] [stdout] | [INFO] [stdout] 220 | write!(&mut w, "is 123"); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 36 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 26.98s [INFO] running `Command { std: "docker" "inspect" "ca46c9c33bc43407348dea02b0ed109ca8a4e59066c1ae7a56d23f2acef08354", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ca46c9c33bc43407348dea02b0ed109ca8a4e59066c1ae7a56d23f2acef08354", kill_on_drop: false }` [INFO] [stdout] ca46c9c33bc43407348dea02b0ed109ca8a4e59066c1ae7a56d23f2acef08354 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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=warn" "-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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", 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] 34b981233d8e0bea63d793dfce02c9c6bcb4fa0175f28abeb96300d64f4c59ee [INFO] running `Command { std: "docker" "start" "-a" "34b981233d8e0bea63d793dfce02c9c6bcb4fa0175f28abeb96300d64f4c59ee", kill_on_drop: false }` [INFO] [stderr] Compiling hello v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `core::future::Future` [INFO] [stdout] --> src/main.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use core::future::Future; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary trailing semicolon [INFO] [stdout] --> src/main.rs:167:6 [INFO] [stdout] | [INFO] [stdout] 167 | }; [INFO] [stdout] | ^ help: remove this semicolon [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(redundant_semicolons)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary trailing semicolon [INFO] [stdout] --> src/main.rs:179:6 [INFO] [stdout] | [INFO] [stdout] 179 | }; [INFO] [stdout] | ^ help: remove this semicolon [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `Future` is imported redundantly [INFO] [stdout] --> src/main.rs:473:9 [INFO] [stdout] | [INFO] [stdout] 1 | use core::future::Future; [INFO] [stdout] | -------------------- the item `Future` is already imported here [INFO] [stdout] ... [INFO] [stdout] 473 | use std::future::Future; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `Context` [INFO] [stdout] --> src/main.rs:475:21 [INFO] [stdout] | [INFO] [stdout] 475 | use std::task::{Context, Poll}; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `s3` [INFO] [stdout] --> src/main.rs:8:9 [INFO] [stdout] | [INFO] [stdout] 8 | let s3:String = s2.to_string(); //&str --> string [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_s3` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `p` [INFO] [stdout] --> src/main.rs:21:9 [INFO] [stdout] | [INFO] [stdout] 21 | let p = Person { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_p` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `literal` [INFO] [stdout] --> src/main.rs:26:9 [INFO] [stdout] | [INFO] [stdout] 26 | let literal = "Hello"; [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_literal` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `e1` [INFO] [stdout] --> src/main.rs:34:9 [INFO] [stdout] | [INFO] [stdout] 34 | let e1 = Event::Quit; [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_e1` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `e2` [INFO] [stdout] --> src/main.rs:35:9 [INFO] [stdout] | [INFO] [stdout] 35 | let e2 = Event::MouseDown { x:10, y:10}; [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_e2` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `next_result` [INFO] [stdout] --> src/main.rs:61:9 [INFO] [stdout] | [INFO] [stdout] 61 | let next_result = result.and_then(func); [INFO] [stdout] | ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_next_result` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `result` [INFO] [stdout] --> src/main.rs:62:9 [INFO] [stdout] | [INFO] [stdout] 62 | let result : Result = Err("error".to_string()); // func() は実行されない [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_result` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `v1` [INFO] [stdout] --> src/main.rs:70:9 [INFO] [stdout] | [INFO] [stdout] 70 | let v1 = vec![1,2,3,4,5]; [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_v1` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `v2` [INFO] [stdout] --> src/main.rs:71:9 [INFO] [stdout] | [INFO] [stdout] 71 | let v2 = vec![0;5]; [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_v2` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `result` [INFO] [stdout] --> src/main.rs:95:9 [INFO] [stdout] | [INFO] [stdout] 95 | let result = if 0 <= number { number } else {-number}; [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_result` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `result` [INFO] [stdout] --> src/main.rs:98:9 [INFO] [stdout] | [INFO] [stdout] 98 | let result = loop { [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_result` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `count` [INFO] [stdout] --> src/main.rs:112:9 [INFO] [stdout] | [INFO] [stdout] 112 | let count : i32; [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_count` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `result_number` [INFO] [stdout] --> src/main.rs:152:9 [INFO] [stdout] | [INFO] [stdout] 152 | let result_number = match result { [INFO] [stdout] | ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_result_number` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `v` [INFO] [stdout] --> src/main.rs:225:9 [INFO] [stdout] | [INFO] [stdout] 225 | let v = vec![1,2,3]; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_v` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `tp` [INFO] [stdout] --> src/main.rs:362:9 [INFO] [stdout] | [INFO] [stdout] 362 | let tp = ("I'm", Emotion::Happy); [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_tp` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `x` [INFO] [stdout] --> src/main.rs:516:52 [INFO] [stdout] | [INFO] [stdout] 516 | async fn send_to_another_thread_with_borrowing(x : &i32) -> i32 { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_x` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:393:9 [INFO] [stdout] | [INFO] [stdout] 393 | let mut x = 5; [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: variant is never constructed: `Anger` [INFO] [stdout] --> src/main.rs:582:5 [INFO] [stdout] | [INFO] [stdout] 582 | Anger, [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:219:5 [INFO] [stdout] | [INFO] [stdout] 219 | write!(&mut w, "{}", "ABC"); [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] = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:220:5 [INFO] [stdout] | [INFO] [stdout] 220 | write!(&mut w, "is 123"); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 25 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 1.09s [INFO] [stderr] Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/hello-1a517e9228e73bef) [INFO] running `Command { std: "docker" "inspect" "34b981233d8e0bea63d793dfce02c9c6bcb4fa0175f28abeb96300d64f4c59ee", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "34b981233d8e0bea63d793dfce02c9c6bcb4fa0175f28abeb96300d64f4c59ee", kill_on_drop: false }` [INFO] [stdout] 34b981233d8e0bea63d793dfce02c9c6bcb4fa0175f28abeb96300d64f4c59ee [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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=warn" "-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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", 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] c01d2af6ceb33ded8803addd68e7b251592340c8789e5031149b847466c7e0a8 [INFO] running `Command { std: "docker" "start" "-a" "c01d2af6ceb33ded8803addd68e7b251592340c8789e5031149b847466c7e0a8", kill_on_drop: false }` [INFO] [stderr] warning: unused import: `core::future::Future` [INFO] [stdout] [INFO] [stderr] --> src/main.rs:1:5 [INFO] [stdout] running 0 tests [INFO] [stderr] | [INFO] [stdout] [INFO] [stderr] 1 | use core::future::Future; [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unnecessary trailing semicolon [INFO] [stderr] --> src/main.rs:167:6 [INFO] [stderr] | [INFO] [stderr] 167 | }; [INFO] [stderr] | ^ help: remove this semicolon [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(redundant_semicolons)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unnecessary trailing semicolon [INFO] [stderr] --> src/main.rs:179:6 [INFO] [stderr] | [INFO] [stderr] 179 | }; [INFO] [stderr] | ^ help: remove this semicolon [INFO] [stderr] [INFO] [stderr] warning: the item `Future` is imported redundantly [INFO] [stderr] --> src/main.rs:473:9 [INFO] [stderr] | [INFO] [stderr] 1 | use core::future::Future; [INFO] [stderr] | -------------------- the item `Future` is already imported here [INFO] [stderr] ... [INFO] [stderr] 473 | use std::future::Future; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `Context` [INFO] [stderr] --> src/main.rs:475:21 [INFO] [stderr] | [INFO] [stderr] 475 | use std::task::{Context, Poll}; [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused variable: `s3` [INFO] [stderr] --> src/main.rs:8:9 [INFO] [stderr] | [INFO] [stderr] 8 | let s3:String = s2.to_string(); //&str --> string [INFO] [stderr] | ^^ help: if this is intentional, prefix it with an underscore: `_s3` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `p` [INFO] [stderr] --> src/main.rs:21:9 [INFO] [stderr] | [INFO] [stderr] 21 | let p = Person { [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_p` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `literal` [INFO] [stderr] --> src/main.rs:26:9 [INFO] [stderr] | [INFO] [stderr] 26 | let literal = "Hello"; [INFO] [stderr] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_literal` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `e1` [INFO] [stderr] --> src/main.rs:34:9 [INFO] [stderr] | [INFO] [stderr] 34 | let e1 = Event::Quit; [INFO] [stderr] | ^^ help: if this is intentional, prefix it with an underscore: `_e1` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `e2` [INFO] [stderr] --> src/main.rs:35:9 [INFO] [stderr] | [INFO] [stderr] 35 | let e2 = Event::MouseDown { x:10, y:10}; [INFO] [stderr] | ^^ help: if this is intentional, prefix it with an underscore: `_e2` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `next_result` [INFO] [stderr] --> src/main.rs:61:9 [INFO] [stderr] | [INFO] [stderr] 61 | let next_result = result.and_then(func); [INFO] [stderr] | ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_next_result` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `result` [INFO] [stderr] --> src/main.rs:62:9 [INFO] [stderr] | [INFO] [stderr] 62 | let result : Result = Err("error".to_string()); // func() は実行されない [INFO] [stderr] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_result` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `v1` [INFO] [stderr] --> src/main.rs:70:9 [INFO] [stderr] | [INFO] [stderr] 70 | let v1 = vec![1,2,3,4,5]; [INFO] [stderr] | ^^ help: if this is intentional, prefix it with an underscore: `_v1` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `v2` [INFO] [stderr] --> src/main.rs:71:9 [INFO] [stderr] | [INFO] [stderr] 71 | let v2 = vec![0;5]; [INFO] [stderr] | ^^ help: if this is intentional, prefix it with an underscore: `_v2` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `result` [INFO] [stderr] --> src/main.rs:95:9 [INFO] [stderr] | [INFO] [stderr] 95 | let result = if 0 <= number { number } else {-number}; [INFO] [stderr] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_result` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `result` [INFO] [stderr] --> src/main.rs:98:9 [INFO] [stderr] | [INFO] [stderr] 98 | let result = loop { [INFO] [stderr] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_result` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `count` [INFO] [stderr] --> src/main.rs:112:9 [INFO] [stderr] | [INFO] [stderr] 112 | let count : i32; [INFO] [stderr] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_count` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `result_number` [INFO] [stderr] --> src/main.rs:152:9 [INFO] [stderr] | [INFO] [stderr] 152 | let result_number = match result { [INFO] [stderr] | ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_result_number` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `v` [INFO] [stderr] --> src/main.rs:225:9 [INFO] [stderr] | [INFO] [stderr] 225 | let v = vec![1,2,3]; [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_v` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `tp` [INFO] [stderr] --> src/main.rs:362:9 [INFO] [stderr] | [INFO] [stderr] 362 | let tp = ("I'm", Emotion::Happy); [INFO] [stderr] | ^^ help: if this is intentional, prefix it with an underscore: `_tp` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `x` [INFO] [stderr] --> src/main.rs:516:52 [INFO] [stderr] | [INFO] [stderr] 516 | async fn send_to_another_thread_with_borrowing(x : &i32) -> i32 { [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_x` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:393:9 [INFO] [stderr] | [INFO] [stderr] 393 | let mut x = 5; [INFO] [stderr] | ----^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_mut)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Anger` [INFO] [stderr] --> src/main.rs:582:5 [INFO] [stderr] | [INFO] [stderr] 582 | Anger, [INFO] [stderr] | ^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused `Result` that must be used [INFO] [stderr] --> src/main.rs:219:5 [INFO] [stderr] | [INFO] [stderr] 219 | write!(&mut w, "{}", "ABC"); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_must_use)]` on by default [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: unused `Result` that must be used [INFO] [stderr] --> src/main.rs:220:5 [INFO] [stderr] | [INFO] [stderr] 220 | write!(&mut w, "is 123"); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: `hello` (bin "hello" test) generated 25 warnings [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.09s [INFO] [stderr] Running unittests src/main.rs (/opt/rustwide/target/debug/deps/hello-1a517e9228e73bef) [INFO] running `Command { std: "docker" "inspect" "c01d2af6ceb33ded8803addd68e7b251592340c8789e5031149b847466c7e0a8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c01d2af6ceb33ded8803addd68e7b251592340c8789e5031149b847466c7e0a8", kill_on_drop: false }` [INFO] [stdout] c01d2af6ceb33ded8803addd68e7b251592340c8789e5031149b847466c7e0a8