[INFO] cloning repository https://github.com/holidaycereal/btree-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/holidaycereal/btree-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fholidaycereal%2Fbtree-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fholidaycereal%2Fbtree-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 77d64c7aeb61615e1d5b2313397e30996b34e33d
[INFO] testing holidaycereal/btree-rs against beta-2026-04-21 for beta-1.96-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fholidaycereal%2Fbtree-rs" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/holidaycereal/btree-rs
[INFO] finished tweaking git repo https://github.com/holidaycereal/btree-rs
[INFO] tweaked toml for git repo https://github.com/holidaycereal/btree-rs written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/holidaycereal/btree-rs on toolchain beta-2026-04-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/holidaycereal/btree-rs 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" "+beta-2026-04-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ca41fb85e2fc88f760b5762e9508acc5f4c45f130feaea864d2b5ad5e3085da1
[INFO] running `Command { std: "docker" "start" "-a" "ca41fb85e2fc88f760b5762e9508acc5f4c45f130feaea864d2b5ad5e3085da1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ca41fb85e2fc88f760b5762e9508acc5f4c45f130feaea864d2b5ad5e3085da1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ca41fb85e2fc88f760b5762e9508acc5f4c45f130feaea864d2b5ad5e3085da1", kill_on_drop: false }`
[INFO] [stdout] ca41fb85e2fc88f760b5762e9508acc5f4c45f130feaea864d2b5ad5e3085da1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8b253747ed2e51c743b80f384f4d45b1948eaa3d3ef1aa3d2aca71fdb9016538
[INFO] running `Command { std: "docker" "start" "-a" "8b253747ed2e51c743b80f384f4d45b1948eaa3d3ef1aa3d2aca71fdb9016538", kill_on_drop: false }`
[INFO] [stderr]    Compiling btree-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/btree.rs:41:17
[INFO] [stdout]    |
[INFO] [stdout] 41 |     pub fn iter(&self) -> BTreeIter<T> { BTreeIter::new(self) }
[INFO] [stdout]    |                 ^^^^^     ^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 41 |     pub fn iter(&self) -> BTreeIter<'_, T> { BTreeIter::new(self) }
[INFO] [stdout]    |                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.38s
[INFO] running `Command { std: "docker" "inspect" "8b253747ed2e51c743b80f384f4d45b1948eaa3d3ef1aa3d2aca71fdb9016538", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8b253747ed2e51c743b80f384f4d45b1948eaa3d3ef1aa3d2aca71fdb9016538", kill_on_drop: false }`
[INFO] [stdout] 8b253747ed2e51c743b80f384f4d45b1948eaa3d3ef1aa3d2aca71fdb9016538
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 07eccbb464063ad4c141315d91a8fe1e92af740373ea3ab3385c130d34ba0631
[INFO] running `Command { std: "docker" "start" "-a" "07eccbb464063ad4c141315d91a8fe1e92af740373ea3ab3385c130d34ba0631", kill_on_drop: false }`
[INFO] [stderr]    Compiling btree-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/btree.rs:41:17
[INFO] [stdout]    |
[INFO] [stdout] 41 |     pub fn iter(&self) -> BTreeIter<T> { BTreeIter::new(self) }
[INFO] [stdout]    |                 ^^^^^     ^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 41 |     pub fn iter(&self) -> BTreeIter<'_, T> { BTreeIter::new(self) }
[INFO] [stdout]    |                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.39s
[INFO] running `Command { std: "docker" "inspect" "07eccbb464063ad4c141315d91a8fe1e92af740373ea3ab3385c130d34ba0631", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "07eccbb464063ad4c141315d91a8fe1e92af740373ea3ab3385c130d34ba0631", kill_on_drop: false }`
[INFO] [stdout] 07eccbb464063ad4c141315d91a8fe1e92af740373ea3ab3385c130d34ba0631
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] b54423b616d1fcbe20ed1b75462b3309b8f25de62759b7a966cb6886b7d641d7
[INFO] running `Command { std: "docker" "start" "-a" "b54423b616d1fcbe20ed1b75462b3309b8f25de62759b7a966cb6886b7d641d7", kill_on_drop: false }`
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]   --> src/btree.rs:41:17
[INFO] [stderr]    |
[INFO] [stderr] 41 |     pub fn iter(&self) -> BTreeIter<T> { BTreeIter::new(self) }
[INFO] [stderr]    |                 ^^^^^     ^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]    |                 |
[INFO] [stderr]    |                 the lifetime is elided here
[INFO] [stderr]    |
[INFO] [stderr]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]    |
[INFO] [stderr] 41 |     pub fn iter(&self) -> BTreeIter<'_, T> { BTreeIter::new(self) }
[INFO] [stderr]    |                                     +++
[INFO] [stderr] 
[INFO] [stderr] warning: `btree-rs` (bin "btree-rs" test) generated 1 warning (run `cargo fix --bin "btree-rs" -p btree-rs --tests` to apply 1 suggestion)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/btree_rs-9dcc45fbb573c4cf)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "b54423b616d1fcbe20ed1b75462b3309b8f25de62759b7a966cb6886b7d641d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b54423b616d1fcbe20ed1b75462b3309b8f25de62759b7a966cb6886b7d641d7", kill_on_drop: false }`
[INFO] [stdout] b54423b616d1fcbe20ed1b75462b3309b8f25de62759b7a966cb6886b7d641d7
