[INFO] updating cached repository https://github.com/bookinstock/rust_example [INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"` [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] c83d144f2d500cd60a59da5019b4bc5ca7d2d36f [INFO] checking bookinstock/rust_example against master#45d050cde277b22a755847338f2acc2c7b834141 for pr-71393 [INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbookinstock%2Frust_example" "/workspace/builds/worker-12/source"` [INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/bookinstock/rust_example on toolchain 45d050cde277b22a755847338f2acc2c7b834141 [INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "read-manifest" "--manifest-path" "Cargo.toml"` [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-12/source/Cargo.toml [INFO] crate git repo https://github.com/bookinstock/rust_example already has a lockfile, it will not be regenerated [INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "check" "--frozen" "--all" "--all-targets"` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 7889f6ff98b15336046423d069f4aaa31ab53db1d15e0f8e3b5a1a6d0da69f2a [INFO] running `"docker" "start" "-a" "7889f6ff98b15336046423d069f4aaa31ab53db1d15e0f8e3b5a1a6d0da69f2a"` [INFO] [stderr] Checking rust_example v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] error[E0601]: `main` function not found in crate `_m` [INFO] [stderr] --> src/bin/_m.rs:1:1 [INFO] [stderr] | [INFO] [stderr] 1 | / pub fn xx() { [INFO] [stderr] 2 | | println!("m xx"); [INFO] [stderr] 3 | | } [INFO] [stderr] | |_^ consider adding a `main` function to `src/bin/_m.rs` [INFO] [stderr] [INFO] [stderr] error: aborting due to previous error [INFO] [stderr] [INFO] [stderr] For more information about this error, try `rustc --explain E0601`. [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] [stderr] error[E0433]: failed to resolve: use of undeclared type or module `futures` [INFO] [stderr] --> src/bin/async.rs:10:5 [INFO] [stderr] | [INFO] [stderr] 10 | use futures::executor::block_on; [INFO] [stderr] | ^^^^^^^ use of undeclared type or module `futures` [INFO] [stderr] [INFO] [stderr] error[E0425]: cannot find function `block_on` in this scope [INFO] [stderr] --> src/bin/async.rs:18:5 [INFO] [stderr] | [INFO] [stderr] 18 | block_on(future); // `future` is run and "hello, world!" is printed [INFO] [stderr] | ^^^^^^^^ not found in this scope [INFO] [stderr] [INFO] [stderr] error: aborting due to 2 previous errors [INFO] [stderr] [INFO] [stderr] Some errors have detailed explanations: E0425, E0433. [INFO] [stderr] For more information about an error, try `rustc --explain E0425`. [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] [stderr] error[E0601]: `main` function not found in crate `unsafe` [INFO] [stderr] --> src/bin/unsafe.rs:1:2 [INFO] [stderr] | [INFO] [stderr] 1 | [INFO] [stderr] | ^ consider adding a `main` function to `src/bin/unsafe.rs` [INFO] [stderr] [INFO] [stderr] error: aborting due to previous error [INFO] [stderr] [INFO] [stderr] For more information about this error, try `rustc --explain E0601`. [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] [stderr] error[E0433]: failed to resolve: use of undeclared type or module `futures` [INFO] [stderr] --> src/bin/async.rs:10:5 [INFO] [stderr] | [INFO] [stderr] 10 | use futures::executor::block_on; [INFO] [stderr] | ^^^^^^^ use of undeclared type or module `futures` [INFO] [stderr] [INFO] [stderr] error[E0425]: cannot find function `block_on` in this scope [INFO] [stderr] --> src/bin/async.rs:18:5 [INFO] [stderr] | [INFO] [stderr] 18 | block_on(future); // `future` is run and "hello, world!" is printed [INFO] [stderr] | ^^^^^^^^ not found in this scope [INFO] [stderr] [INFO] [stderr] error: aborting due to 2 previous errors [INFO] [stderr] [INFO] [stderr] Some errors have detailed explanations: E0425, E0433. [INFO] [stderr] For more information about an error, try `rustc --explain E0425`. [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] [stderr] warning: unused variable: `x` [INFO] [stderr] --> src/bin/scope.rs:88:9 [INFO] [stderr] | [INFO] [stderr] 88 | let x = ToDrop; [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_x` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `ref_x` [INFO] [stderr] --> src/bin/scope.rs:401:13 [INFO] [stderr] | [INFO] [stderr] 401 | let ref_x = &x; [INFO] [stderr] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_ref_x` [INFO] [stderr] [INFO] [stderr] warning: function is never used: `test_literal` [INFO] [stderr] --> src/bin/pattern_matching.rs:113:4 [INFO] [stderr] | [INFO] [stderr] 113 | fn test_literal() {} [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: function is never used: `test_array` [INFO] [stderr] --> src/bin/pattern_matching.rs:115:4 [INFO] [stderr] | [INFO] [stderr] 115 | fn test_array() {} [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `test_enum` [INFO] [stderr] --> src/bin/pattern_matching.rs:117:4 [INFO] [stderr] | [INFO] [stderr] 117 | fn test_enum() {} [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `test_stuct` [INFO] [stderr] --> src/bin/pattern_matching.rs:119:4 [INFO] [stderr] | [INFO] [stderr] 119 | fn test_stuct() {} [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `test_variable` [INFO] [stderr] --> src/bin/pattern_matching.rs:137:4 [INFO] [stderr] | [INFO] [stderr] 137 | fn test_variable() {} [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `test_wildcard` [INFO] [stderr] --> src/bin/pattern_matching.rs:139:4 [INFO] [stderr] | [INFO] [stderr] 139 | fn test_wildcard() {} [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `test_placeholder` [INFO] [stderr] --> src/bin/pattern_matching.rs:141:4 [INFO] [stderr] | [INFO] [stderr] 141 | fn test_placeholder() {} [INFO] [stderr] | ^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/bin/scope.rs:405:13 [INFO] [stderr] | [INFO] [stderr] 405 | let mut ref_x = &mut x; [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: function is never used: `ps_ref` [INFO] [stderr] --> src/bin/scope.rs:444:4 [INFO] [stderr] | [INFO] [stderr] 444 | fn ps_ref() { [INFO] [stderr] | ^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: 4 warnings emitted [INFO] [stderr] [INFO] [stderr] warning: 7 warnings emitted [INFO] [stderr] [INFO] [stderr] warning: function is never used: `test_literal` [INFO] [stderr] --> src/bin/pattern_matching.rs:113:4 [INFO] [stderr] | [INFO] [stderr] 113 | fn test_literal() {} [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: function is never used: `test_array` [INFO] [stderr] --> src/bin/pattern_matching.rs:115:4 [INFO] [stderr] | [INFO] [stderr] 115 | fn test_array() {} [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `test_enum` [INFO] [stderr] --> src/bin/pattern_matching.rs:117:4 [INFO] [stderr] | [INFO] [stderr] 117 | fn test_enum() {} [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `test_stuct` [INFO] [stderr] --> src/bin/pattern_matching.rs:119:4 [INFO] [stderr] | [INFO] [stderr] 119 | fn test_stuct() {} [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `test_variable` [INFO] [stderr] --> src/bin/pattern_matching.rs:137:4 [INFO] [stderr] | [INFO] [stderr] 137 | fn test_variable() {} [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `test_wildcard` [INFO] [stderr] --> src/bin/pattern_matching.rs:139:4 [INFO] [stderr] | [INFO] [stderr] 139 | fn test_wildcard() {} [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `test_placeholder` [INFO] [stderr] --> src/bin/pattern_matching.rs:141:4 [INFO] [stderr] | [INFO] [stderr] 141 | fn test_placeholder() {} [INFO] [stderr] | ^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused variable: `s` [INFO] [stderr] --> src/bin/generic.rs:217:9 [INFO] [stderr] | [INFO] [stderr] 217 | let s = S(1); [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_s` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `s` [INFO] [stderr] --> src/bin/generic.rs:217:9 [INFO] [stderr] | [INFO] [stderr] 217 | let s = S(1); [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_s` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: 7 warnings emitted [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `S` [INFO] [stderr] --> src/bin/generic.rs:135:12 [INFO] [stderr] | [INFO] [stderr] 135 | struct S; // 具体类型 `S` [INFO] [stderr] | ^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `GenericVal` [INFO] [stderr] --> src/bin/generic.rs:136:12 [INFO] [stderr] | [INFO] [stderr] 136 | struct GenericVal(T); // 泛型类型 `GenericVal` [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `printer` [INFO] [stderr] --> src/bin/generic.rs:210:8 [INFO] [stderr] | [INFO] [stderr] 210 | fn printer(t: T) { [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `S` [INFO] [stderr] --> src/bin/generic.rs:135:12 [INFO] [stderr] | [INFO] [stderr] 135 | struct S; // 具体类型 `S` [INFO] [stderr] | ^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `GenericVal` [INFO] [stderr] --> src/bin/generic.rs:136:12 [INFO] [stderr] | [INFO] [stderr] 136 | struct GenericVal(T); // 泛型类型 `GenericVal` [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `printer` [INFO] [stderr] --> src/bin/generic.rs:210:8 [INFO] [stderr] | [INFO] [stderr] 210 | fn printer(t: T) { [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: 4 warnings emitted [INFO] [stderr] [INFO] [stderr] warning: 4 warnings emitted [INFO] [stderr] [INFO] [stderr] error: build failed [INFO] running `"docker" "inspect" "7889f6ff98b15336046423d069f4aaa31ab53db1d15e0f8e3b5a1a6d0da69f2a"` [INFO] running `"docker" "rm" "-f" "7889f6ff98b15336046423d069f4aaa31ab53db1d15e0f8e3b5a1a6d0da69f2a"` [INFO] [stdout] 7889f6ff98b15336046423d069f4aaa31ab53db1d15e0f8e3b5a1a6d0da69f2a