[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#22572d0994593197593e2a1b7b18d720a9a349a7 for pr-126452-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnickx720%2Fiteratorsrust_playground" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/nickx720/iteratorsrust_playground on toolchain 22572d0994593197593e2a1b7b18d720a9a349a7 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "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-3-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" "+22572d0994593197593e2a1b7b18d720a9a349a7" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 00ae9682c9e8e0ecc974bc6c550b4f99157fc72291f144a039f077f31d52a082 [INFO] running `Command { std: "docker" "start" "-a" "00ae9682c9e8e0ecc974bc6c550b4f99157fc72291f144a039f077f31d52a082", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "00ae9682c9e8e0ecc974bc6c550b4f99157fc72291f144a039f077f31d52a082", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "00ae9682c9e8e0ecc974bc6c550b4f99157fc72291f144a039f077f31d52a082", kill_on_drop: false }` [INFO] [stdout] 00ae9682c9e8e0ecc974bc6c550b4f99157fc72291f144a039f077f31d52a082 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] bf5366fce9bdc31f0c74a369b8fcb827a9e2a7db8e154d4130b73129d51cce4f [INFO] running `Command { std: "docker" "start" "-a" "bf5366fce9bdc31f0c74a369b8fcb827a9e2a7db8e154d4130b73129d51cce4f", 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: 6 warnings emitted [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: 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: 2 warnings emitted [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: 2 warnings emitted [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: 6 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.43s [INFO] running `Command { std: "docker" "inspect" "bf5366fce9bdc31f0c74a369b8fcb827a9e2a7db8e154d4130b73129d51cce4f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "bf5366fce9bdc31f0c74a369b8fcb827a9e2a7db8e154d4130b73129d51cce4f", kill_on_drop: false }` [INFO] [stdout] bf5366fce9bdc31f0c74a369b8fcb827a9e2a7db8e154d4130b73129d51cce4f [INFO] checking nickx720/iteratorsrust_playground against try#6289438dbad80b1a0029c66dd3f6abf57c2c51be for pr-126452-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnickx720%2Fiteratorsrust_playground" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/nickx720/iteratorsrust_playground on toolchain 6289438dbad80b1a0029c66dd3f6abf57c2c51be [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "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-3-tc2/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" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 4d8e06ee33d693575adc080003917b2647236cc6554caffb05060586f2aaa585 [INFO] running `Command { std: "docker" "start" "-a" "4d8e06ee33d693575adc080003917b2647236cc6554caffb05060586f2aaa585", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "4d8e06ee33d693575adc080003917b2647236cc6554caffb05060586f2aaa585", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4d8e06ee33d693575adc080003917b2647236cc6554caffb05060586f2aaa585", kill_on_drop: false }` [INFO] [stdout] 4d8e06ee33d693575adc080003917b2647236cc6554caffb05060586f2aaa585 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 175bfc876572954602c615abe82f2be34092a6e6aefbb834031bacd1637a0585 [INFO] running `Command { std: "docker" "start" "-a" "175bfc876572954602c615abe82f2be34092a6e6aefbb834031bacd1637a0585", 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: 6 warnings emitted [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: 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: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [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: 6 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.38s [INFO] running `Command { std: "docker" "inspect" "175bfc876572954602c615abe82f2be34092a6e6aefbb834031bacd1637a0585", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "175bfc876572954602c615abe82f2be34092a6e6aefbb834031bacd1637a0585", kill_on_drop: false }` [INFO] [stdout] 175bfc876572954602c615abe82f2be34092a6e6aefbb834031bacd1637a0585