[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] 4179adbd86cceb16e0a571dd7a847d70b9fca449 [INFO] testing nickx720/iteratorsrust_playground against try#722e1797249a965b6335aebd65d777f917e498f1 for pr-91031 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnickx720%2Fiteratorsrust_playground" "/workspace/builds/worker-6/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/nickx720/iteratorsrust_playground on toolchain 722e1797249a965b6335aebd65d777f917e498f1 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "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-6/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" "+722e1797249a965b6335aebd65d777f917e498f1" "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-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] e0ef87989baebb0b49e5a45a373ca504bf430daeb29800daf9ed4c7ac8b24b14 [INFO] running `Command { std: "docker" "start" "-a" "e0ef87989baebb0b49e5a45a373ca504bf430daeb29800daf9ed4c7ac8b24b14", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "e0ef87989baebb0b49e5a45a373ca504bf430daeb29800daf9ed4c7ac8b24b14", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e0ef87989baebb0b49e5a45a373ca504bf430daeb29800daf9ed4c7ac8b24b14", kill_on_drop: false }` [INFO] [stdout] e0ef87989baebb0b49e5a45a373ca504bf430daeb29800daf9ed4c7ac8b24b14 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+722e1797249a965b6335aebd65d777f917e498f1" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 5815869c666c7fd625437da319b05ed5a53c78d6acb19b2c8d2382cca81a8e2a [INFO] running `Command { std: "docker" "start" "-a" "5815869c666c7fd625437da319b05ed5a53c78d6acb19b2c8d2382cca81a8e2a", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling iterators v0.1.0 (/opt/rustwide/workdir) [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: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 2.13s [INFO] running `Command { std: "docker" "inspect" "5815869c666c7fd625437da319b05ed5a53c78d6acb19b2c8d2382cca81a8e2a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5815869c666c7fd625437da319b05ed5a53c78d6acb19b2c8d2382cca81a8e2a", kill_on_drop: false }` [INFO] [stdout] 5815869c666c7fd625437da319b05ed5a53c78d6acb19b2c8d2382cca81a8e2a [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 558be56c3e85a1ec3008ee37cbefaa6d5d4894a31f861a1719dc7001a7be68a7 [INFO] running `Command { std: "docker" "start" "-a" "558be56c3e85a1ec3008ee37cbefaa6d5d4894a31f861a1719dc7001a7be68a7", kill_on_drop: false }` [INFO] [stderr] Compiling iterators v0.1.0 (/opt/rustwide/workdir) [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: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.59s [INFO] running `Command { std: "docker" "inspect" "558be56c3e85a1ec3008ee37cbefaa6d5d4894a31f861a1719dc7001a7be68a7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "558be56c3e85a1ec3008ee37cbefaa6d5d4894a31f861a1719dc7001a7be68a7", kill_on_drop: false }` [INFO] [stdout] 558be56c3e85a1ec3008ee37cbefaa6d5d4894a31f861a1719dc7001a7be68a7 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 9505a4955447d13c108a0622ea6a07d798d60b35c8c4d7f8d858b881ac80daa0 [INFO] running `Command { std: "docker" "start" "-a" "9505a4955447d13c108a0622ea6a07d798d60b35c8c4d7f8d858b881ac80daa0", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:249:9 [INFO] [stderr] | [INFO] [stderr] 249 | let mut tree = Node::Children(vec![ [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: associated function is never used: `traverse` [INFO] [stderr] --> src/main.rs:9:8 [INFO] [stderr] | [INFO] [stderr] 9 | fn traverse(&self, f: impl Fn(&It)) { [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: `iterators` (bin "iterators" test) generated 2 warnings [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 5.02s [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/iterators-bd2c09f4d2ee4b2b) [INFO] [stdout] [INFO] [stdout] running 6 tests [INFO] [stdout] test test_borrowing_for_loop ... ok [INFO] [stdout] test test_borrowing_for_node_loop ... ok [INFO] [stdout] test test_borrowing_iter ... ok [INFO] [stdout] test test_borrowing_mut_for_node_loop ... ok [INFO] [stdout] test test_borrowing_mut_node_iter ... ok [INFO] [stdout] test test_borrowing_node_iter ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "9505a4955447d13c108a0622ea6a07d798d60b35c8c4d7f8d858b881ac80daa0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9505a4955447d13c108a0622ea6a07d798d60b35c8c4d7f8d858b881ac80daa0", kill_on_drop: false }` [INFO] [stdout] 9505a4955447d13c108a0622ea6a07d798d60b35c8c4d7f8d858b881ac80daa0