[INFO] cloning repository https://github.com/bookinstock/rust_example [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/bookinstock/rust_example" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbookinstock%2Frust_example", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbookinstock%2Frust_example'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] c83d144f2d500cd60a59da5019b4bc5ca7d2d36f [INFO] checking bookinstock/rust_example against try#169954edd744527414c631e9af1bbdc537b0cdf2 for pr-75192 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbookinstock%2Frust_example" "/workspace/builds/worker-0/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/bookinstock/rust_example on toolchain 169954edd744527414c631e9af1bbdc537b0cdf2 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+169954edd744527414c631e9af1bbdc537b0cdf2" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/bookinstock/rust_example [INFO] finished tweaking git repo https://github.com/bookinstock/rust_example [INFO] tweaked toml for git repo https://github.com/bookinstock/rust_example written to /workspace/builds/worker-0/source/Cargo.toml [INFO] crate git repo https://github.com/bookinstock/rust_example already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+169954edd744527414c631e9af1bbdc537b0cdf2" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+169954edd744527414c631e9af1bbdc537b0cdf2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 1f9193f6271e0398964a6990f8a6d783ea883268899adbb6802435aab2499165 [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" "1f9193f6271e0398964a6990f8a6d783ea883268899adbb6802435aab2499165", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "1f9193f6271e0398964a6990f8a6d783ea883268899adbb6802435aab2499165", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1f9193f6271e0398964a6990f8a6d783ea883268899adbb6802435aab2499165", kill_on_drop: false }` [INFO] [stdout] 1f9193f6271e0398964a6990f8a6d783ea883268899adbb6802435aab2499165 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+169954edd744527414c631e9af1bbdc537b0cdf2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 867b676714fdf75c1903ea885abf946401fb0417fed7c8576656c9eca79cfc28 [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" "867b676714fdf75c1903ea885abf946401fb0417fed7c8576656c9eca79cfc28", kill_on_drop: false }` [INFO] [stderr] Checking rust_example v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] error[E0601]: `main` function not found in crate `other` [INFO] [stdout] --> src/bin/other.rs:1:2 [INFO] [stdout] | [INFO] [stdout] 1 | [INFO] [stdout] | ^ consider adding a `main` function to `src/bin/other.rs` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to previous error [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0601`. [INFO] [stdout] [INFO] [stderr] error: could not compile `rust_example`. [INFO] [stderr] [INFO] [stderr] To learn more, run the command again with --verbose. [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] warning: path statement with no effect [INFO] [stdout] --> src/bin/expression.rs:18:5 [INFO] [stdout] | [INFO] [stdout] 18 | x; [INFO] [stdout] | ^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(path_statements)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused arithmetic operation that must be used [INFO] [stdout] --> src/bin/expression.rs:19:5 [INFO] [stdout] | [INFO] [stdout] 19 | x + 1; [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused arithmetic operation that must be used [INFO] [stdout] --> src/bin/expression.rs:36:9 [INFO] [stdout] | [INFO] [stdout] 36 | 2 * x; [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `From` is imported redundantly [INFO] [stdout] --> src/bin/conversion.rs:53:9 [INFO] [stdout] | [INFO] [stdout] 53 | use std::convert::From; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `ToString` is imported redundantly [INFO] [stdout] --> src/bin/conversion.rs:106:9 [INFO] [stdout] | [INFO] [stdout] 106 | use std::string::ToString; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0601]: `main` function not found in crate `test` [INFO] [stdout] --> src/bin/test.rs:13:4 [INFO] [stdout] | [INFO] [stdout] 13 | */ [INFO] [stdout] | ^ consider adding a `main` function to `src/bin/test.rs` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to previous error [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0601`. [INFO] [stdout] [INFO] [stdout] warning: path statement with no effect [INFO] [stdout] --> src/bin/expression.rs:18:5 [INFO] [stdout] | [INFO] [stdout] 18 | x; [INFO] [stdout] | ^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(path_statements)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused arithmetic operation that must be used [INFO] [stdout] --> src/bin/expression.rs:19:5 [INFO] [stdout] | [INFO] [stdout] 19 | x + 1; [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused arithmetic operation that must be used [INFO] [stdout] --> src/bin/expression.rs:36:9 [INFO] [stdout] | [INFO] [stdout] 36 | 2 * x; [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused label [INFO] [stdout] --> src/bin/control_flow.rs:119:9 [INFO] [stdout] | [INFO] [stdout] 119 | 'inner: loop { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_labels)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `s` [INFO] [stdout] --> src/bin/generic.rs:217:9 [INFO] [stdout] | [INFO] [stdout] 217 | let s = S(1); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_s` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `my_string` [INFO] [stdout] --> src/bin/conversion.rs:51:9 [INFO] [stdout] | [INFO] [stdout] 51 | let my_string = String::from(my_str); [INFO] [stdout] | ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_my_string` [INFO] [stdout] | [INFO] [stdout] note: the lint level is defined here [INFO] [stdout] --> src/bin/conversion.rs:45:8 [INFO] [stdout] | [INFO] [stdout] 45 | #[warn(unused_variables)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct is never constructed: `S` [INFO] [stdout] --> src/bin/generic.rs:135:12 [INFO] [stdout] | [INFO] [stdout] 135 | struct S; // 具体类型 `S` [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct is never constructed: `GenericVal` [INFO] [stdout] --> src/bin/generic.rs:136:12 [INFO] [stdout] | [INFO] [stdout] 136 | struct GenericVal(T); // 泛型类型 `GenericVal` [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `printer` [INFO] [stdout] --> src/bin/generic.rs:210:8 [INFO] [stdout] | [INFO] [stdout] 210 | fn printer(t: T) { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `vec2` [INFO] [stdout] --> src/bin/function.rs:391:9 [INFO] [stdout] | [INFO] [stdout] 391 | let vec2 = vec![4, 5, 6]; [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_vec2` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable statement [INFO] [stdout] --> src/bin/control_flow.rs:125:9 [INFO] [stdout] | [INFO] [stdout] 122 | break 'outer; [INFO] [stdout] | ------------ any code following this expression is unreachable [INFO] [stdout] ... [INFO] [stdout] 125 | println!("never reach"); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ unreachable statement [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unreachable_code)]` on by default [INFO] [stdout] = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: this method call currently resolves to `<&[T; N] as IntoIterator>::into_iter` (due to autoref coercions), but that might change in the future when `IntoIterator` impls for arrays are added. [INFO] [stdout] --> src/bin/function.rs:431:16 [INFO] [stdout] | [INFO] [stdout] 431 | array2.into_iter().find(|&&x| x == 2) [INFO] [stdout] | ^^^^^^^^^ help: use `.iter()` instead of `.into_iter()` to avoid ambiguity: `iter` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(array_into_iter)]` on by default [INFO] [stdout] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! [INFO] [stdout] = note: for more information, see issue #66145 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct is never constructed: `Nil` [INFO] [stdout] --> src/bin/custom_type.rs:30:8 [INFO] [stdout] | [INFO] [stdout] 30 | struct Nil; [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: build failed [INFO] running `Command { std: "docker" "inspect" "867b676714fdf75c1903ea885abf946401fb0417fed7c8576656c9eca79cfc28", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "867b676714fdf75c1903ea885abf946401fb0417fed7c8576656c9eca79cfc28", kill_on_drop: false }` [INFO] [stdout] 867b676714fdf75c1903ea885abf946401fb0417fed7c8576656c9eca79cfc28