[INFO] cloning repository https://github.com/nickx720/iteratorsrust_playground [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/nickx720/iteratorsrust_playground" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnickx720%2Fiteratorsrust_playground", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnickx720%2Fiteratorsrust_playground'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] bb14a7ca1c8d651d8861239bb2ca420f0de338cf [INFO] checking nickx720/iteratorsrust_playground against master#9bfa31f632912180dc742809bcc51a97f2d7079d for pr-140151 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnickx720%2Fiteratorsrust_playground" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/nickx720/iteratorsrust_playground on toolchain 9bfa31f632912180dc742809bcc51a97f2d7079d [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9bfa31f632912180dc742809bcc51a97f2d7079d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/nickx720/iteratorsrust_playground [INFO] finished tweaking git repo https://github.com/nickx720/iteratorsrust_playground [INFO] tweaked toml for git repo https://github.com/nickx720/iteratorsrust_playground written to /workspace/builds/worker-5-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/nickx720/iteratorsrust_playground 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" "+9bfa31f632912180dc742809bcc51a97f2d7079d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+9bfa31f632912180dc742809bcc51a97f2d7079d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 81fc5ccf062a17e2d556c45d4681f5af541badbb8b582d1e4ddbcecfcae30093 [INFO] running `Command { std: "docker" "start" "-a" "81fc5ccf062a17e2d556c45d4681f5af541badbb8b582d1e4ddbcecfcae30093", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "81fc5ccf062a17e2d556c45d4681f5af541badbb8b582d1e4ddbcecfcae30093", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "81fc5ccf062a17e2d556c45d4681f5af541badbb8b582d1e4ddbcecfcae30093", kill_on_drop: false }` [INFO] [stdout] 81fc5ccf062a17e2d556c45d4681f5af541badbb8b582d1e4ddbcecfcae30093 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+9bfa31f632912180dc742809bcc51a97f2d7079d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 347ff91520ee9a03edb0df9b9ca68228448821b4d7061114c0c83135ff055a68 [INFO] running `Command { std: "docker" "start" "-a" "347ff91520ee9a03edb0df9b9ca68228448821b4d7061114c0c83135ff055a68", kill_on_drop: false }` [INFO] [stderr] Checking iterators v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: type `Test_P` should have an upper camel case name [INFO] [stdout] --> src/self-referential/main.rs:93:8 [INFO] [stdout] | [INFO] [stdout] 93 | struct Test_P { [INFO] [stdout] | ^^^^^^ help: convert the identifier to upper camel case: `TestP` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_camel_case_types)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: type `Test_P` should have an upper camel case name [INFO] [stdout] --> src/self-referential/main.rs:93:8 [INFO] [stdout] | [INFO] [stdout] 93 | struct Test_P { [INFO] [stdout] | ^^^^^^ help: convert the identifier to upper camel case: `TestP` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_camel_case_types)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `a` [INFO] [stdout] --> src/self-referential/main.rs:143:9 [INFO] [stdout] | [INFO] [stdout] 143 | let a = Me::new(Rc::clone(&holder), "a"); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_a` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `b` [INFO] [stdout] --> src/self-referential/main.rs:144:9 [INFO] [stdout] | [INFO] [stdout] 144 | let b = Me::new(Rc::clone(&holder), "b"); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_b` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `name` is never read [INFO] [stdout] --> src/self-referential/main.rs:26:5 [INFO] [stdout] | [INFO] [stdout] 25 | struct Me { [INFO] [stdout] | -- field in this struct [INFO] [stdout] 26 | name: String, [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Me` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Test_P` is never constructed [INFO] [stdout] --> src/self-referential/main.rs:93:8 [INFO] [stdout] | [INFO] [stdout] 93 | struct Test_P { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `new` is never used [INFO] [stdout] --> src/self-referential/main.rs:100:8 [INFO] [stdout] | [INFO] [stdout] 99 | impl Test_P { [INFO] [stdout] | ----------- associated function in this implementation [INFO] [stdout] 100 | fn new(txt: &str) -> Pin> { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:249:9 [INFO] [stdout] | [INFO] [stdout] 249 | let mut tree = Node::Children(vec![ [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: method `traverse` is never used [INFO] [stdout] --> src/main.rs:9:8 [INFO] [stdout] | [INFO] [stdout] 8 | impl Node { [INFO] [stdout] | ----------------- method in this implementation [INFO] [stdout] 9 | fn traverse(&self, f: impl Fn(&It)) { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variants `Leaf` and `Children` are never constructed [INFO] [stdout] --> src/main.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 4 | enum Node { [INFO] [stdout] | ---- variants in this enum [INFO] [stdout] 5 | Leaf(Item), [INFO] [stdout] | ^^^^ [INFO] [stdout] 6 | Children(Vec>), [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `traverse` is never used [INFO] [stdout] --> src/main.rs:9:8 [INFO] [stdout] | [INFO] [stdout] 8 | impl Node { [INFO] [stdout] | ----------------- method in this implementation [INFO] [stdout] 9 | fn traverse(&self, f: impl Fn(&It)) { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `a` [INFO] [stdout] --> src/self-referential/main.rs:143:9 [INFO] [stdout] | [INFO] [stdout] 143 | let a = Me::new(Rc::clone(&holder), "a"); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_a` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `b` [INFO] [stdout] --> src/self-referential/main.rs:144:9 [INFO] [stdout] | [INFO] [stdout] 144 | let b = Me::new(Rc::clone(&holder), "b"); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_b` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `name` is never read [INFO] [stdout] --> src/self-referential/main.rs:26:5 [INFO] [stdout] | [INFO] [stdout] 25 | struct Me { [INFO] [stdout] | -- field in this struct [INFO] [stdout] 26 | name: String, [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Me` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Test_P` is never constructed [INFO] [stdout] --> src/self-referential/main.rs:93:8 [INFO] [stdout] | [INFO] [stdout] 93 | struct Test_P { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `new` is never used [INFO] [stdout] --> src/self-referential/main.rs:100:8 [INFO] [stdout] | [INFO] [stdout] 99 | impl Test_P { [INFO] [stdout] | ----------- associated function in this implementation [INFO] [stdout] 100 | fn new(txt: &str) -> Pin> { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.31s [INFO] running `Command { std: "docker" "inspect" "347ff91520ee9a03edb0df9b9ca68228448821b4d7061114c0c83135ff055a68", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "347ff91520ee9a03edb0df9b9ca68228448821b4d7061114c0c83135ff055a68", kill_on_drop: false }` [INFO] [stdout] 347ff91520ee9a03edb0df9b9ca68228448821b4d7061114c0c83135ff055a68