[INFO] updating cached repository https://github.com/modulitos/rust-lang-book-exercises [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] 3fe04e874a1fdaf5bd04be0722497198364eac15 [INFO] checking modulitos/rust-lang-book-exercises against try#9ff4d07208097950831ed4ea9d76feb1eafc8baa for pr-69340 [INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmodulitos%2Frust-lang-book-exercises" "/workspace/builds/worker-1/source"` [INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/modulitos/rust-lang-book-exercises on toolchain 9ff4d07208097950831ed4ea9d76feb1eafc8baa [INFO] running `"/workspace/cargo-home/bin/cargo" "+9ff4d07208097950831ed4ea9d76feb1eafc8baa" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking git repo https://github.com/modulitos/rust-lang-book-exercises [INFO] finished tweaking git repo https://github.com/modulitos/rust-lang-book-exercises [INFO] tweaked toml for git repo https://github.com/modulitos/rust-lang-book-exercises written to /workspace/builds/worker-1/source/Cargo.toml [INFO] crate git repo https://github.com/modulitos/rust-lang-book-exercises already has a lockfile, it will not be regenerated [INFO] running `"/workspace/cargo-home/bin/cargo" "+9ff4d07208097950831ed4ea9d76feb1eafc8baa" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+9ff4d07208097950831ed4ea9d76feb1eafc8baa" "check" "--frozen" "--all" "--all-targets"` [INFO] [stdout] d348b2ae8b6735e062039dc7934567487cd5aece865f8122f6adac46bf9c9e22 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `"docker" "start" "-a" "d348b2ae8b6735e062039dc7934567487cd5aece865f8122f6adac46bf9c9e22"` [INFO] [stderr] Checking rust_lang_book v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] warning: unused variable: `content` [INFO] [stderr] --> src/state_pattern_blog.rs:68:28 [INFO] [stderr] | [INFO] [stderr] 68 | fn add_text(&self, content: &mut String, text: &str) {} [INFO] [stderr] | ^^^^^^^ help: consider prefixing with an underscore: `_content` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `text` [INFO] [stderr] --> src/state_pattern_blog.rs:68:50 [INFO] [stderr] | [INFO] [stderr] 68 | fn add_text(&self, content: &mut String, text: &str) {} [INFO] [stderr] | ^^^^ help: consider prefixing with an underscore: `_text` [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Post` [INFO] [stderr] --> src/different_types_blog.rs:3:16 [INFO] [stderr] | [INFO] [stderr] 3 | pub struct Post { [INFO] [stderr] | ^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: method is never used: `new` [INFO] [stderr] --> src/different_types_blog.rs:8:9 [INFO] [stderr] | [INFO] [stderr] 8 | pub fn new() -> DraftPost { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `content` [INFO] [stderr] --> src/different_types_blog.rs:14:9 [INFO] [stderr] | [INFO] [stderr] 14 | pub fn content(&self) -> &str { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `reject` [INFO] [stderr] --> src/different_types_blog.rs:18:9 [INFO] [stderr] | [INFO] [stderr] 18 | pub fn reject(self) -> DraftPost { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `DraftPost` [INFO] [stderr] --> src/different_types_blog.rs:25:16 [INFO] [stderr] | [INFO] [stderr] 25 | pub struct DraftPost { [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `add_text` [INFO] [stderr] --> src/different_types_blog.rs:30:9 [INFO] [stderr] | [INFO] [stderr] 30 | pub fn add_text(&mut self, text: &str) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `request_review` [INFO] [stderr] --> src/different_types_blog.rs:34:9 [INFO] [stderr] | [INFO] [stderr] 34 | pub fn request_review(self) -> PendingReview { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `PendingReview` [INFO] [stderr] --> src/different_types_blog.rs:41:16 [INFO] [stderr] | [INFO] [stderr] 41 | pub struct PendingReview { [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `approve` [INFO] [stderr] --> src/different_types_blog.rs:46:9 [INFO] [stderr] | [INFO] [stderr] 46 | pub fn approve(self) -> PendingSecondReview { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `PendingSecondReview` [INFO] [stderr] --> src/different_types_blog.rs:53:16 [INFO] [stderr] | [INFO] [stderr] 53 | pub struct PendingSecondReview { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `approve` [INFO] [stderr] --> src/different_types_blog.rs:58:9 [INFO] [stderr] | [INFO] [stderr] 58 | pub fn approve(self) -> Post { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: field is never read: `state` [INFO] [stderr] --> src/state_pattern_blog.rs:5:9 [INFO] [stderr] | [INFO] [stderr] 5 | state: Option>, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `new` [INFO] [stderr] --> src/state_pattern_blog.rs:9:9 [INFO] [stderr] | [INFO] [stderr] 9 | pub fn new() -> Self { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `add_text` [INFO] [stderr] --> src/state_pattern_blog.rs:17:9 [INFO] [stderr] | [INFO] [stderr] 17 | pub fn add_text(&mut self, text: &str) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `content` [INFO] [stderr] --> src/state_pattern_blog.rs:25:9 [INFO] [stderr] | [INFO] [stderr] 25 | pub fn content(&self) -> &str { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `request_review` [INFO] [stderr] --> src/state_pattern_blog.rs:29:9 [INFO] [stderr] | [INFO] [stderr] 29 | pub fn request_review(&mut self) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `approve` [INFO] [stderr] --> src/state_pattern_blog.rs:37:9 [INFO] [stderr] | [INFO] [stderr] 37 | pub fn approve(&mut self) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `reject` [INFO] [stderr] --> src/state_pattern_blog.rs:43:9 [INFO] [stderr] | [INFO] [stderr] 43 | pub fn reject(&mut self) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused variable: `post` [INFO] [stderr] --> src/different_types_blog.rs:83:13 [INFO] [stderr] | [INFO] [stderr] 83 | let post = post.reject(); [INFO] [stderr] | ^^^^ help: consider prefixing with an underscore: `_post` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `content` [INFO] [stderr] --> src/state_pattern_blog.rs:68:28 [INFO] [stderr] | [INFO] [stderr] 68 | fn add_text(&self, content: &mut String, text: &str) {} [INFO] [stderr] | ^^^^^^^ help: consider prefixing with an underscore: `_content` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `text` [INFO] [stderr] --> src/state_pattern_blog.rs:68:50 [INFO] [stderr] | [INFO] [stderr] 68 | fn add_text(&self, content: &mut String, text: &str) {} [INFO] [stderr] | ^^^^ help: consider prefixing with an underscore: `_text` [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.66s [INFO] running `"docker" "inspect" "d348b2ae8b6735e062039dc7934567487cd5aece865f8122f6adac46bf9c9e22"` [INFO] running `"docker" "rm" "-f" "d348b2ae8b6735e062039dc7934567487cd5aece865f8122f6adac46bf9c9e22"` [INFO] [stdout] d348b2ae8b6735e062039dc7934567487cd5aece865f8122f6adac46bf9c9e22