[INFO] fetching crate starb 0.3.1...
[INFO] testing starb-0.3.1 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate starb 0.3.1 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate starb 0.3.1
[INFO] finished tweaking crates.io crate starb 0.3.1
[INFO] tweaked toml for crates.io crate starb 0.3.1 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate starb 0.3.1 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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bc3c3f85ad2df73f425228ca750bc671127e3fc79ffa301688eb5f039d10898e
[INFO] running `Command { std: "docker" "start" "-a" "bc3c3f85ad2df73f425228ca750bc671127e3fc79ffa301688eb5f039d10898e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bc3c3f85ad2df73f425228ca750bc671127e3fc79ffa301688eb5f039d10898e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bc3c3f85ad2df73f425228ca750bc671127e3fc79ffa301688eb5f039d10898e", kill_on_drop: false }`
[INFO] [stdout] bc3c3f85ad2df73f425228ca750bc671127e3fc79ffa301688eb5f039d10898e
[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=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] bc828cf2744bc92a92012490cc4cc06ee396416025c0037f3f451bd6c889c7d2
[INFO] running `Command { std: "docker" "start" "-a" "bc828cf2744bc92a92012490cc4cc06ee396416025c0037f3f451bd6c889c7d2", kill_on_drop: false }`
[INFO] [stderr]    Compiling starb v0.3.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/lib.rs:63:24
[INFO] [stdout]    |
[INFO] [stdout] 63 |     pub const fn split(&self) -> (Reader<T>, Writer<T>) {
[INFO] [stdout]    |                        ^^^^^      ^^^^^^^^^  ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                        |          |
[INFO] [stdout]    |                        |          the same lifetime is hidden here
[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] 63 |     pub const fn split(&self) -> (Reader<'_, T>, Writer<'_, T>) {
[INFO] [stdout]    |                                          +++            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.10s
[INFO] running `Command { std: "docker" "inspect" "bc828cf2744bc92a92012490cc4cc06ee396416025c0037f3f451bd6c889c7d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bc828cf2744bc92a92012490cc4cc06ee396416025c0037f3f451bd6c889c7d2", kill_on_drop: false }`
[INFO] [stdout] bc828cf2744bc92a92012490cc4cc06ee396416025c0037f3f451bd6c889c7d2
[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=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] df4ff70172f0c7ff82e9d5cf15e2969d2e5a32b6dfffa0285268bfef1cff1672
[INFO] running `Command { std: "docker" "start" "-a" "df4ff70172f0c7ff82e9d5cf15e2969d2e5a32b6dfffa0285268bfef1cff1672", kill_on_drop: false }`
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/lib.rs:63:24
[INFO] [stdout]    |
[INFO] [stdout] 63 |     pub const fn split(&self) -> (Reader<T>, Writer<T>) {
[INFO] [stdout]    |                        ^^^^^      ^^^^^^^^^  ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                        |          |
[INFO] [stdout]    |                        |          the same lifetime is hidden here
[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] 63 |     pub const fn split(&self) -> (Reader<'_, T>, Writer<'_, T>) {
[INFO] [stdout]    |                                          +++            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling starb v0.3.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/lib.rs:63:24
[INFO] [stdout]    |
[INFO] [stdout] 63 |     pub const fn split(&self) -> (Reader<T>, Writer<T>) {
[INFO] [stdout]    |                        ^^^^^      ^^^^^^^^^  ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                        |          |
[INFO] [stdout]    |                        |          the same lifetime is hidden here
[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] 63 |     pub const fn split(&self) -> (Reader<'_, T>, Writer<'_, T>) {
[INFO] [stdout]    |                                          +++            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.55s
[INFO] running `Command { std: "docker" "inspect" "df4ff70172f0c7ff82e9d5cf15e2969d2e5a32b6dfffa0285268bfef1cff1672", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "df4ff70172f0c7ff82e9d5cf15e2969d2e5a32b6dfffa0285268bfef1cff1672", kill_on_drop: false }`
[INFO] [stdout] df4ff70172f0c7ff82e9d5cf15e2969d2e5a32b6dfffa0285268bfef1cff1672
[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=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] fe38f955121f92fee820b7cbd4bdd1d458f0cd3fba5b50ca7de63647d404909b
[INFO] running `Command { std: "docker" "start" "-a" "fe38f955121f92fee820b7cbd4bdd1d458f0cd3fba5b50ca7de63647d404909b", kill_on_drop: false }`
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]   --> src/lib.rs:63:24
[INFO] [stderr]    |
[INFO] [stderr] 63 |     pub const fn split(&self) -> (Reader<T>, Writer<T>) {
[INFO] [stderr]    |                        ^^^^^      ^^^^^^^^^  ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]    |                        |          |
[INFO] [stderr]    |                        |          the same lifetime is hidden here
[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] 63 |     pub const fn split(&self) -> (Reader<'_, T>, Writer<'_, T>) {
[INFO] [stderr]    |                                          +++            +++
[INFO] [stderr] 
[INFO] [stderr] warning: `starb` (lib) generated 1 warning (run `cargo fix --lib -p starb` to apply 1 suggestion)
[INFO] [stderr] warning: `starb` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/starb-d17294543dd977bf)
[INFO] [stdout] 
[INFO] [stdout] running 10 tests
[INFO] [stdout] test test::can_wrap ... ok
[INFO] [stdout] test test::cannot_overwrite ... ok
[INFO] [stdout] test test::detects_empty ... ok
[INFO] [stdout] test test::can_iter ... ok
[INFO] [stdout] test test::ownership_passes_through ... ok
[INFO] [stdout] test test::shift_into_bigger ... ok
[INFO] [stdout] test test::unshift_from_smaller ... ok
[INFO] [stdout] test test::shift_into_smaller ... ok
[INFO] [stdout] test test::len_matches ... ok
[INFO] [stdout] test test::unshift_from_bigger ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 10 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests starb
[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" "fe38f955121f92fee820b7cbd4bdd1d458f0cd3fba5b50ca7de63647d404909b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fe38f955121f92fee820b7cbd4bdd1d458f0cd3fba5b50ca7de63647d404909b", kill_on_drop: false }`
[INFO] [stdout] fe38f955121f92fee820b7cbd4bdd1d458f0cd3fba5b50ca7de63647d404909b
