[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#936f2600b6c903b04387f74ed5cbce88bb06d243 for pr-91141 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnickx720%2Fiteratorsrust_playground" "/workspace/builds/worker-20/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-20/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/nickx720/iteratorsrust_playground on toolchain 936f2600b6c903b04387f74ed5cbce88bb06d243 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "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-20/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: "/workspace/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "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-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] c41bf06db03b8944c59ef15e765453e399677511b39680d10f5a9d3ff7703a54 [INFO] running `Command { std: "docker" "start" "-a" "c41bf06db03b8944c59ef15e765453e399677511b39680d10f5a9d3ff7703a54", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "c41bf06db03b8944c59ef15e765453e399677511b39680d10f5a9d3ff7703a54", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c41bf06db03b8944c59ef15e765453e399677511b39680d10f5a9d3ff7703a54", kill_on_drop: false }` [INFO] [stdout] c41bf06db03b8944c59ef15e765453e399677511b39680d10f5a9d3ff7703a54 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 9a0aeecb14ec4eed5756c59298ac37ff24223e6872167ca67e0ac59926ac059f [INFO] running `Command { std: "docker" "start" "-a" "9a0aeecb14ec4eed5756c59298ac37ff24223e6872167ca67e0ac59926ac059f", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [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: 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: 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: associated function is never used: `traverse` [INFO] [stdout] --> src/main.rs:9:8 [INFO] [stdout] | [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: field is never read: `name` [INFO] [stdout] --> src/self-referential/main.rs:26:5 [INFO] [stdout] | [INFO] [stdout] 26 | name: String, [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `value` [INFO] [stdout] --> src/self-referential/main.rs:94:5 [INFO] [stdout] | [INFO] [stdout] 94 | value: String, [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `pointer_to_value` [INFO] [stdout] --> src/self-referential/main.rs:95:5 [INFO] [stdout] | [INFO] [stdout] 95 | pointer_to_value: *const String, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `new` [INFO] [stdout] --> src/self-referential/main.rs:100:8 [INFO] [stdout] | [INFO] [stdout] 100 | fn new(txt: &str) -> Pin> { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Leaf` [INFO] [stdout] --> src/main.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 5 | Leaf(Item), [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Children` [INFO] [stdout] --> src/main.rs:6:5 [INFO] [stdout] | [INFO] [stdout] 6 | Children(Vec>), [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `traverse` [INFO] [stdout] --> src/main.rs:9:8 [INFO] [stdout] | [INFO] [stdout] 9 | fn traverse(&self, f: impl Fn(&It)) { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 7 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [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 is never read: `name` [INFO] [stdout] --> src/self-referential/main.rs:26:5 [INFO] [stdout] | [INFO] [stdout] 26 | name: String, [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `value` [INFO] [stdout] --> src/self-referential/main.rs:94:5 [INFO] [stdout] | [INFO] [stdout] 94 | value: String, [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `pointer_to_value` [INFO] [stdout] --> src/self-referential/main.rs:95:5 [INFO] [stdout] | [INFO] [stdout] 95 | pointer_to_value: *const String, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `new` [INFO] [stdout] --> src/self-referential/main.rs:100:8 [INFO] [stdout] | [INFO] [stdout] 100 | fn new(txt: &str) -> Pin> { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 7 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 7.14s [INFO] running `Command { std: "docker" "inspect" "9a0aeecb14ec4eed5756c59298ac37ff24223e6872167ca67e0ac59926ac059f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9a0aeecb14ec4eed5756c59298ac37ff24223e6872167ca67e0ac59926ac059f", kill_on_drop: false }` [INFO] [stdout] 9a0aeecb14ec4eed5756c59298ac37ff24223e6872167ca67e0ac59926ac059f