[INFO] fetching crate carboncopy-tokio 0.1.4...
[INFO] testing carboncopy-tokio-0.1.4 against beta-2026-03-05 for beta-1.95-1
[INFO] extracting crate carboncopy-tokio 0.1.4 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate carboncopy-tokio 0.1.4
[INFO] finished tweaking crates.io crate carboncopy-tokio 0.1.4
[INFO] tweaked toml for crates.io crate carboncopy-tokio 0.1.4 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate carboncopy-tokio 0.1.4 on toolchain beta-2026-03-05
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-03-05" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-03-05" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 54 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-03-05" "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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-03-05" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ae1879e57aefdd7c911c0cbd334e1984bea7878911fb2255c52ace3d30f68e93
[INFO] running `Command { std: "docker" "start" "-a" "ae1879e57aefdd7c911c0cbd334e1984bea7878911fb2255c52ace3d30f68e93", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ae1879e57aefdd7c911c0cbd334e1984bea7878911fb2255c52ace3d30f68e93", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ae1879e57aefdd7c911c0cbd334e1984bea7878911fb2255c52ace3d30f68e93", kill_on_drop: false }`
[INFO] [stdout] ae1879e57aefdd7c911c0cbd334e1984bea7878911fb2255c52ace3d30f68e93
[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=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-2026-03-05" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3fd171ba087aeb7b52616b7917c3e5da7df6b7cbc6a24fd48602766d850879b4
[INFO] running `Command { std: "docker" "start" "-a" "3fd171ba087aeb7b52616b7917c3e5da7df6b7cbc6a24fd48602766d850879b4", kill_on_drop: false }`
[INFO] [stderr]    Compiling futures-core v0.3.32
[INFO] [stderr]    Compiling futures-sink v0.3.32
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling futures-io v0.3.32
[INFO] [stderr]    Compiling syn v2.0.117
[INFO] [stderr]    Compiling data-encoding v2.10.0
[INFO] [stderr]    Compiling serde_json v1.0.149
[INFO] [stderr]    Compiling futures-channel v0.3.32
[INFO] [stderr]    Compiling futures-macro v0.3.32
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling tokio-macros v2.6.1
[INFO] [stderr]    Compiling tokio v1.50.0
[INFO] [stderr]    Compiling futures-util v0.3.32
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling chrono v0.4.44
[INFO] [stderr]    Compiling futures-executor v0.3.32
[INFO] [stderr]    Compiling futures v0.3.32
[INFO] [stderr]    Compiling carboncopy v0.3.0
[INFO] [stderr]    Compiling carboncopy-tokio v0.1.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/lib.rs:28:13
[INFO] [stdout]    |
[INFO] [stdout] 28 |     fn sink(&self, entry: String) -> BoxFuture<std::io::Result<()>> {
[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] 28 |     fn sink(&self, entry: String) -> BoxFuture<'_, std::io::Result<()>> {
[INFO] [stdout]    |                                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 26.42s
[INFO] running `Command { std: "docker" "inspect" "3fd171ba087aeb7b52616b7917c3e5da7df6b7cbc6a24fd48602766d850879b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3fd171ba087aeb7b52616b7917c3e5da7df6b7cbc6a24fd48602766d850879b4", kill_on_drop: false }`
[INFO] [stdout] 3fd171ba087aeb7b52616b7917c3e5da7df6b7cbc6a24fd48602766d850879b4
[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=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-2026-03-05" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] de7ba8bf5142a579ad6b317c28eb00a7f15ca3abb56af85daa944ab1fd9974d1
[INFO] running `Command { std: "docker" "start" "-a" "de7ba8bf5142a579ad6b317c28eb00a7f15ca3abb56af85daa944ab1fd9974d1", kill_on_drop: false }`
[INFO] [stderr]    Compiling carboncopy-tokio v0.1.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/lib.rs:28:13
[INFO] [stdout]    |
[INFO] [stdout] 28 |     fn sink(&self, entry: String) -> BoxFuture<std::io::Result<()>> {
[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] 28 |     fn sink(&self, entry: String) -> BoxFuture<'_, std::io::Result<()>> {
[INFO] [stdout]    |                                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/lib.rs:28:13
[INFO] [stdout]    |
[INFO] [stdout] 28 |     fn sink(&self, entry: String) -> BoxFuture<std::io::Result<()>> {
[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] 28 |     fn sink(&self, entry: String) -> BoxFuture<'_, std::io::Result<()>> {
[INFO] [stdout]    |                                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 2.54s
[INFO] running `Command { std: "docker" "inspect" "de7ba8bf5142a579ad6b317c28eb00a7f15ca3abb56af85daa944ab1fd9974d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "de7ba8bf5142a579ad6b317c28eb00a7f15ca3abb56af85daa944ab1fd9974d1", kill_on_drop: false }`
[INFO] [stdout] de7ba8bf5142a579ad6b317c28eb00a7f15ca3abb56af85daa944ab1fd9974d1
[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=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-2026-03-05" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] dc13365b059dcaf1d60b54963c3ca154c170ded37a56c620038b232e654e422c
[INFO] running `Command { std: "docker" "start" "-a" "dc13365b059dcaf1d60b54963c3ca154c170ded37a56c620038b232e654e422c", kill_on_drop: false }`
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]   --> src/lib.rs:28:13
[INFO] [stderr]    |
[INFO] [stderr] 28 |     fn sink(&self, entry: String) -> BoxFuture<std::io::Result<()>> {
[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] 28 |     fn sink(&self, entry: String) -> BoxFuture<'_, std::io::Result<()>> {
[INFO] [stderr]    |                                                +++
[INFO] [stderr] 
[INFO] [stderr] warning: `carboncopy-tokio` (lib) generated 1 warning (run `cargo fix --lib -p carboncopy-tokio` to apply 1 suggestion)
[INFO] [stderr] warning: `carboncopy-tokio` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/carboncopy_tokio-6c0887e7f0df5a07)
[INFO] [stdout] test tests::overflow_threshold ... ok
[INFO] [stdout] test tests::no_buffer ... ok
[INFO] [stdout] test tests::flush_err ... ok
[INFO] [stdout] test tests::default_options_dont_panic ... ok
[INFO] [stdout] test tests::overflow_flush ... ok
[INFO] [stdout] test tests::timeout_flush ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.05s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests carboncopy_tokio
[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" "dc13365b059dcaf1d60b54963c3ca154c170ded37a56c620038b232e654e422c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dc13365b059dcaf1d60b54963c3ca154c170ded37a56c620038b232e654e422c", kill_on_drop: false }`
[INFO] [stdout] dc13365b059dcaf1d60b54963c3ca154c170ded37a56c620038b232e654e422c
