[INFO] cloning repository https://github.com/mingjingc/hello-rust [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mingjingc/hello-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmingjingc%2Fhello-rust", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmingjingc%2Fhello-rust'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 10dc568ad4ae6769f92aca26a2450be5a9ed8670 [INFO] testing mingjingc/hello-rust against master#cdb45c87e2cd43495379f7e867e3cc15dcee9f93 for pr-145838-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmingjingc%2Fhello-rust" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/mingjingc/hello-rust [INFO] finished tweaking git repo https://github.com/mingjingc/hello-rust [INFO] tweaked toml for git repo https://github.com/mingjingc/hello-rust written to /workspace/builds/worker-1-tc1/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/mingjingc/hello-rust on toolchain cdb45c87e2cd43495379f7e867e3cc15dcee9f93 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/mingjingc/hello-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" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 42202127a8aeb26e07c0573fe1cd0a2c2cbc9b5710343bfdd3bb83a858013677 [INFO] running `Command { std: "docker" "start" "-a" "42202127a8aeb26e07c0573fe1cd0a2c2cbc9b5710343bfdd3bb83a858013677", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "42202127a8aeb26e07c0573fe1cd0a2c2cbc9b5710343bfdd3bb83a858013677", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "42202127a8aeb26e07c0573fe1cd0a2c2cbc9b5710343bfdd3bb83a858013677", kill_on_drop: false }` [INFO] [stdout] 42202127a8aeb26e07c0573fe1cd0a2c2cbc9b5710343bfdd3bb83a858013677 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 5ed8aae00a288454822f08131d82c1d821ecdd1932f9c3aab7fbabc0aaeb1da8 [INFO] running `Command { std: "docker" "start" "-a" "5ed8aae00a288454822f08131d82c1d821ecdd1932f9c3aab7fbabc0aaeb1da8", kill_on_drop: false }` [INFO] [stderr] Compiling hello v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused label [INFO] [stdout] --> src/bin/flowofcontroll.rs:39:9 [INFO] [stdout] | [INFO] [stdout] 39 | 'inner: loop { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_labels)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable statement [INFO] [stdout] --> src/bin/flowofcontroll.rs:43:9 [INFO] [stdout] | [INFO] [stdout] 41 | break 'outer; // 这步会直接跳出outer循环 [INFO] [stdout] | ------------ any code following this expression is unreachable [INFO] [stdout] 42 | } [INFO] [stdout] 43 | println!("This point will never be reached"); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable statement [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unreachable_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] = note: this warning originates in the macro `println` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `long_lived_binding` [INFO] [stdout] --> src/bin/virable.rs:23:13 [INFO] [stdout] | [INFO] [stdout] 23 | let long_lived_binding = 5_f32; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_long_lived_binding` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `mutable_integer` [INFO] [stdout] --> src/bin/virable.rs:47:13 [INFO] [stdout] | [INFO] [stdout] 47 | let mutable_integer = mutable_integer; [INFO] [stdout] | ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_mutable_integer` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/bin/virable.rs:44:9 [INFO] [stdout] | [INFO] [stdout] 44 | let mut mutable_integer = 7i32; [INFO] [stdout] | ----^^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::arch::is_aarch64_feature_detected` [INFO] [stdout] --> src/bin/conversion.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::arch::is_aarch64_feature_detected; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable pattern [INFO] [stdout] --> src/bin/match.rs:52:9 [INFO] [stdout] | [INFO] [stdout] 51 | (1, y, z) => println!("First is `0`, `y` is {:?}, and `z` is {:?}", y, z), [INFO] [stdout] | --------- matches all the relevant values [INFO] [stdout] 52 | (1, ..) => println!("First is `1` and the rest doesn't matter"), [INFO] [stdout] | ^^^^^^^ no value can reach this [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unreachable_patterns)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `i` [INFO] [stdout] --> src/bin/match.rs:146:9 [INFO] [stdout] | [INFO] [stdout] 146 | i => println!("Less than zero"), [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `value` [INFO] [stdout] --> src/bin/if.rs:77:21 [INFO] [stdout] | [INFO] [stdout] 77 | if let Foo::Qux(value @ 100) = c { [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_value` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `value` is never read [INFO] [stdout] --> src/bin/conversion.rs:6:5 [INFO] [stdout] | [INFO] [stdout] 5 | struct Number { [INFO] [stdout] | ------ field in this struct [INFO] [stdout] 6 | value: i32, [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Number` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `EvenNumber` is never constructed [INFO] [stdout] --> src/bin/conversion.rs:21:8 [INFO] [stdout] | [INFO] [stdout] 21 | struct EvenNumber(i32); [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant `Fahrenheit` is never constructed [INFO] [stdout] --> src/bin/match.rs:17:5 [INFO] [stdout] | [INFO] [stdout] 15 | enum Temperture { [INFO] [stdout] | ---------- variant in this enum [INFO] [stdout] 16 | Celsius(i32), [INFO] [stdout] 17 | Fahrenheit(i32), [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused arithmetic operation that must be used [INFO] [stdout] --> src/bin/expressions.rs:14:9 [INFO] [stdout] | [INFO] [stdout] 14 | 2 * x; [INFO] [stdout] | ^^^^^ the arithmetic operation produces a value [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 14 | let _ = 2 * x; [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.86s [INFO] running `Command { std: "docker" "inspect" "5ed8aae00a288454822f08131d82c1d821ecdd1932f9c3aab7fbabc0aaeb1da8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5ed8aae00a288454822f08131d82c1d821ecdd1932f9c3aab7fbabc0aaeb1da8", kill_on_drop: false }` [INFO] [stdout] 5ed8aae00a288454822f08131d82c1d821ecdd1932f9c3aab7fbabc0aaeb1da8 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 74c20bb5771391c40a869eb557ef1b74a2ea5342ceaefbe41a3094211ce50a64 [INFO] running `Command { std: "docker" "start" "-a" "74c20bb5771391c40a869eb557ef1b74a2ea5342ceaefbe41a3094211ce50a64", kill_on_drop: false }` [INFO] [stderr] Compiling hello v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `long_lived_binding` [INFO] [stdout] --> src/bin/virable.rs:23:13 [INFO] [stdout] | [INFO] [stdout] 23 | let long_lived_binding = 5_f32; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_long_lived_binding` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `mutable_integer` [INFO] [stdout] --> src/bin/virable.rs:47:13 [INFO] [stdout] | [INFO] [stdout] 47 | let mutable_integer = mutable_integer; [INFO] [stdout] | ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_mutable_integer` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/bin/virable.rs:44:9 [INFO] [stdout] | [INFO] [stdout] 44 | let mut mutable_integer = 7i32; [INFO] [stdout] | ----^^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `value` [INFO] [stdout] --> src/bin/if.rs:77:21 [INFO] [stdout] | [INFO] [stdout] 77 | if let Foo::Qux(value @ 100) = c { [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_value` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused label [INFO] [stdout] --> src/bin/flowofcontroll.rs:39:9 [INFO] [stdout] | [INFO] [stdout] 39 | 'inner: loop { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_labels)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused arithmetic operation that must be used [INFO] [stdout] --> src/bin/expressions.rs:14:9 [INFO] [stdout] | [INFO] [stdout] 14 | 2 * x; [INFO] [stdout] | ^^^^^ the arithmetic operation produces a value [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 14 | let _ = 2 * x; [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable statement [INFO] [stdout] --> src/bin/flowofcontroll.rs:43:9 [INFO] [stdout] | [INFO] [stdout] 41 | break 'outer; // 这步会直接跳出outer循环 [INFO] [stdout] | ------------ any code following this expression is unreachable [INFO] [stdout] 42 | } [INFO] [stdout] 43 | println!("This point will never be reached"); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable statement [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unreachable_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] = note: this warning originates in the macro `println` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable pattern [INFO] [stdout] --> src/bin/match.rs:52:9 [INFO] [stdout] | [INFO] [stdout] 51 | (1, y, z) => println!("First is `0`, `y` is {:?}, and `z` is {:?}", y, z), [INFO] [stdout] | --------- matches all the relevant values [INFO] [stdout] 52 | (1, ..) => println!("First is `1` and the rest doesn't matter"), [INFO] [stdout] | ^^^^^^^ no value can reach this [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unreachable_patterns)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `i` [INFO] [stdout] --> src/bin/match.rs:146:9 [INFO] [stdout] | [INFO] [stdout] 146 | i => println!("Less than zero"), [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant `Fahrenheit` is never constructed [INFO] [stdout] --> src/bin/match.rs:17:5 [INFO] [stdout] | [INFO] [stdout] 15 | enum Temperture { [INFO] [stdout] | ---------- variant in this enum [INFO] [stdout] 16 | Celsius(i32), [INFO] [stdout] 17 | Fahrenheit(i32), [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::arch::is_aarch64_feature_detected` [INFO] [stdout] --> src/bin/conversion.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::arch::is_aarch64_feature_detected; [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 `value` is never read [INFO] [stdout] --> src/bin/conversion.rs:6:5 [INFO] [stdout] | [INFO] [stdout] 5 | struct Number { [INFO] [stdout] | ------ field in this struct [INFO] [stdout] 6 | value: i32, [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Number` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `EvenNumber` is never constructed [INFO] [stdout] --> src/bin/conversion.rs:21:8 [INFO] [stdout] | [INFO] [stdout] 21 | struct EvenNumber(i32); [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.73s [INFO] running `Command { std: "docker" "inspect" "74c20bb5771391c40a869eb557ef1b74a2ea5342ceaefbe41a3094211ce50a64", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "74c20bb5771391c40a869eb557ef1b74a2ea5342ceaefbe41a3094211ce50a64", kill_on_drop: false }` [INFO] [stdout] 74c20bb5771391c40a869eb557ef1b74a2ea5342ceaefbe41a3094211ce50a64 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 320c67bdb90384b9c7b0fd8d4a75357c1cdbf9f5f4958fb237ec5b71973e27f6 [INFO] running `Command { std: "docker" "start" "-a" "320c67bdb90384b9c7b0fd8d4a75357c1cdbf9f5f4958fb237ec5b71973e27f6", kill_on_drop: false }` [INFO] [stderr] warning: unused import: `std::arch::is_aarch64_feature_detected` [INFO] [stderr] --> src/bin/conversion.rs:1:5 [INFO] [stderr] | [INFO] [stderr] 1 | use std::arch::is_aarch64_feature_detected; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] [INFO] [stderr] warning: field `value` is never read [INFO] [stderr] --> src/bin/conversion.rs:6:5 [INFO] [stderr] | [INFO] [stderr] 5 | struct Number { [INFO] [stderr] | ------ field in this struct [INFO] [stderr] 6 | value: i32, [INFO] [stderr] | ^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `Number` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stderr] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] [INFO] [stderr] warning: struct `EvenNumber` is never constructed [INFO] [stderr] --> src/bin/conversion.rs:21:8 [INFO] [stderr] | [INFO] [stderr] 21 | struct EvenNumber(i32); [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: `hello` (bin "conversion" test) generated 3 warnings (run `cargo fix --bin "conversion" --tests` to apply 1 suggestion) [INFO] [stderr] warning: unused variable: `value` [INFO] [stderr] --> src/bin/if.rs:77:21 [INFO] [stderr] | [INFO] [stderr] 77 | if let Foo::Qux(value @ 100) = c { [INFO] [stderr] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_value` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] [INFO] [stderr] warning: unreachable pattern [INFO] [stderr] --> src/bin/match.rs:52:9 [INFO] [stderr] | [INFO] [stderr] 51 | (1, y, z) => println!("First is `0`, `y` is {:?}, and `z` is {:?}", y, z), [INFO] [stderr] | --------- matches all the relevant values [INFO] [stderr] 52 | (1, ..) => println!("First is `1` and the rest doesn't matter"), [INFO] [stderr] | ^^^^^^^ no value can reach this [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unreachable_patterns)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `i` [INFO] [stderr] --> src/bin/match.rs:146:9 [INFO] [stderr] | [INFO] [stderr] 146 | i => println!("Less than zero"), [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] [INFO] [stderr] warning: variant `Fahrenheit` is never constructed [INFO] [stderr] --> src/bin/match.rs:17:5 [INFO] [stderr] | [INFO] [stderr] 15 | enum Temperture { [INFO] [stderr] | ---------- variant in this enum [INFO] [stderr] 16 | Celsius(i32), [INFO] [stderr] 17 | Fahrenheit(i32), [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] [INFO] [stderr] warning: unused label [INFO] [stderr] --> src/bin/flowofcontroll.rs:39:9 [INFO] [stderr] | [INFO] [stderr] 39 | 'inner: loop { [INFO] [stderr] | ^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_labels)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] [INFO] [stderr] warning: unreachable statement [INFO] [stderr] --> src/bin/flowofcontroll.rs:43:9 [INFO] [stderr] | [INFO] [stderr] 41 | break 'outer; // 这步会直接跳出outer循环 [INFO] [stderr] | ------------ any code following this expression is unreachable [INFO] [stderr] 42 | } [INFO] [stderr] 43 | println!("This point will never be reached"); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable statement [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unreachable_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] = note: this warning originates in the macro `println` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: unused arithmetic operation that must be used [INFO] [stderr] --> src/bin/expressions.rs:14:9 [INFO] [stderr] | [INFO] [stderr] 14 | 2 * x; [INFO] [stderr] | ^^^^^ the arithmetic operation produces a value [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] help: use `let _ = ...` to ignore the resulting value [INFO] [stderr] | [INFO] [stderr] 14 | let _ = 2 * x; [INFO] [stderr] | +++++++ [INFO] [stderr] [INFO] [stderr] warning: unused variable: `long_lived_binding` [INFO] [stderr] --> src/bin/virable.rs:23:13 [INFO] [stderr] | [INFO] [stderr] 23 | let long_lived_binding = 5_f32; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_long_lived_binding` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `mutable_integer` [INFO] [stderr] --> src/bin/virable.rs:47:13 [INFO] [stderr] | [INFO] [stderr] 47 | let mutable_integer = mutable_integer; [INFO] [stderr] | ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_mutable_integer` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/bin/virable.rs:44:9 [INFO] [stderr] | [INFO] [stderr] 44 | let mut mutable_integer = 7i32; [INFO] [stderr] | ----^^^^^^^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] [INFO] [stderr] warning: `hello` (bin "if" test) generated 1 warning [INFO] [stderr] warning: `hello` (bin "match" test) generated 3 warnings [INFO] [stderr] warning: `hello` (bin "flowofcontroll" test) generated 2 warnings [INFO] [stderr] warning: `hello` (bin "expressions" test) generated 1 warning [INFO] [stderr] warning: `hello` (bin "virable" test) generated 3 warnings (run `cargo fix --bin "virable" --tests` to apply 1 suggestion) [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s [INFO] [stderr] Running unittests src/bin/constants.rs (/opt/rustwide/target/debug/deps/constants-89b937c235ab3a05) [INFO] [stderr] Running unittests src/bin/conversion.rs (/opt/rustwide/target/debug/deps/conversion-fc7e983ec4e3be43) [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stderr] Running unittests src/bin/enums.rs (/opt/rustwide/target/debug/deps/enums-fcff6c3324f41c4d) [INFO] [stdout] [INFO] [stderr] Running unittests src/bin/expressions.rs (/opt/rustwide/target/debug/deps/expressions-49088bab69d3f6fb) [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stderr] Running unittests src/bin/flowofcontroll.rs (/opt/rustwide/target/debug/deps/flowofcontroll-d82460bbe109c44a) [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stderr] Running unittests src/main.rs (/opt/rustwide/target/debug/deps/hello-90723c0326dfef4d) [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stderr] Running unittests src/bin/if.rs (/opt/rustwide/target/debug/deps/if-4838e081e2647d2c) [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stderr] Running unittests src/bin/match.rs (/opt/rustwide/target/debug/deps/match-4d67dd9e6ac0eebd) [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stderr] Running unittests src/bin/types.rs (/opt/rustwide/target/debug/deps/types-f380a1b16b3b7ac0) [INFO] [stdout] [INFO] [stderr] Running unittests src/bin/virable.rs (/opt/rustwide/target/debug/deps/virable-ba8949a2de1b448a) [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Running unittests src/bin/while.rs (/opt/rustwide/target/debug/deps/while-a9ac749525cca8ef) [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "320c67bdb90384b9c7b0fd8d4a75357c1cdbf9f5f4958fb237ec5b71973e27f6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "320c67bdb90384b9c7b0fd8d4a75357c1cdbf9f5f4958fb237ec5b71973e27f6", kill_on_drop: false }` [INFO] [stdout] 320c67bdb90384b9c7b0fd8d4a75357c1cdbf9f5f4958fb237ec5b71973e27f6