[INFO] fetching crate indextree 4.7.4...
[INFO] checking indextree-4.7.4 against try#998b6603a58e47f42ccce7a67943234e96b6839e for pr-143170
[INFO] extracting crate indextree 4.7.4 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate indextree 4.7.4
[INFO] removed 0 missing examples
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate indextree 4.7.4
[INFO] tweaked toml for crates.io crate indextree 4.7.4 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate indextree 4.7.4 on toolchain 998b6603a58e47f42ccce7a67943234e96b6839e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate indextree 4.7.4 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" "+998b6603a58e47f42ccce7a67943234e96b6839e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8363fa5f8097637121065bb4907553058a78aecaf4757f6877b4217b7e290044
[INFO] running `Command { std: "docker" "start" "-a" "8363fa5f8097637121065bb4907553058a78aecaf4757f6877b4217b7e290044", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8363fa5f8097637121065bb4907553058a78aecaf4757f6877b4217b7e290044", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8363fa5f8097637121065bb4907553058a78aecaf4757f6877b4217b7e290044", kill_on_drop: false }`
[INFO] [stdout] 8363fa5f8097637121065bb4907553058a78aecaf4757f6877b4217b7e290044
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dfd2755375e2186a416c5b3e207deeac3649f0d6ffef708feab6185d74075dc3
[INFO] running `Command { std: "docker" "start" "-a" "dfd2755375e2186a416c5b3e207deeac3649f0d6ffef708feab6185d74075dc3", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v2.0.101
[INFO] [stderr]    Compiling rustversion v1.0.20
[INFO] [stderr]    Compiling either v1.15.0
[INFO] [stderr]    Compiling thiserror v2.0.12
[INFO] [stderr]    Compiling itertools v0.14.0
[INFO] [stderr]    Compiling thiserror-impl v2.0.12
[INFO] [stderr]    Compiling strum_macros v0.27.1
[INFO] [stderr]    Compiling strum v0.27.1
[INFO] [stderr]    Compiling indextree-macros v0.1.3
[INFO] [stderr]     Checking indextree v4.7.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/arena.rs:285:17
[INFO] [stdout]     |
[INFO] [stdout] 285 |     pub fn iter(&self) -> slice::Iter<Node<T>> {
[INFO] [stdout]     |                 ^^^^^     -------------------- the lifetime gets resolved as `'_`
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 this lifetime flows to the output
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]     |
[INFO] [stdout] 285 |     pub fn iter(&self) -> slice::Iter<'_, Node<T>> {
[INFO] [stdout]     |                                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/arena.rs:312:21
[INFO] [stdout]     |
[INFO] [stdout] 312 |     pub fn iter_mut(&mut self) -> slice::IterMut<Node<T>> {
[INFO] [stdout]     |                     ^^^^^^^^^     ----------------------- the lifetime gets resolved as `'_`
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     this lifetime flows to the output
[INFO] [stdout]     |
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]     |
[INFO] [stdout] 312 |     pub fn iter_mut(&mut self) -> slice::IterMut<'_, Node<T>> {
[INFO] [stdout]     |                                                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/arena.rs:285:17
[INFO] [stdout]     |
[INFO] [stdout] 285 |     pub fn iter(&self) -> slice::Iter<Node<T>> {
[INFO] [stdout]     |                 ^^^^^     -------------------- the lifetime gets resolved as `'_`
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 this lifetime flows to the output
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]     |
[INFO] [stdout] 285 |     pub fn iter(&self) -> slice::Iter<'_, Node<T>> {
[INFO] [stdout]     |                                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/arena.rs:312:21
[INFO] [stdout]     |
[INFO] [stdout] 312 |     pub fn iter_mut(&mut self) -> slice::IterMut<Node<T>> {
[INFO] [stdout]     |                     ^^^^^^^^^     ----------------------- the lifetime gets resolved as `'_`
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     this lifetime flows to the output
[INFO] [stdout]     |
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]     |
[INFO] [stdout] 312 |     pub fn iter_mut(&mut self) -> slice::IterMut<'_, Node<T>> {
[INFO] [stdout]     |                                                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.76s
[INFO] running `Command { std: "docker" "inspect" "dfd2755375e2186a416c5b3e207deeac3649f0d6ffef708feab6185d74075dc3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dfd2755375e2186a416c5b3e207deeac3649f0d6ffef708feab6185d74075dc3", kill_on_drop: false }`
[INFO] [stdout] dfd2755375e2186a416c5b3e207deeac3649f0d6ffef708feab6185d74075dc3