[INFO] fetching crate callbag 0.14.0... [INFO] testing callbag-0.14.0 against master#562dee4820c458d823175268e41601d4c060588a for pr-154210-1 [INFO] extracting crate callbag 0.14.0 into /workspace/builds/worker-6-tc1/source [INFO] started tweaking crates.io crate callbag 0.14.0 [INFO] removed 0 missing tests [INFO] finished tweaking crates.io crate callbag 0.14.0 [INFO] tweaked toml for crates.io crate callbag 0.14.0 written to /workspace/builds/worker-6-tc1/source/Cargo.toml [INFO] validating manifest of crates.io crate callbag 0.14.0 on toolchain 562dee4820c458d823175268e41601d4c060588a [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "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" "+562dee4820c458d823175268e41601d4c060588a" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 119 packages to latest compatible versions [INFO] [stderr] Adding async_executors v0.5.1 (available: v0.7.0) [INFO] [stderr] Adding async_nursery v0.4.1 (available: v0.6.0) [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded async_nursery v0.4.1 [INFO] [stderr] Downloaded arc-swap v1.9.1 [INFO] [stderr] Downloaded blanket v0.2.0 [INFO] [stderr] Downloaded async_executors v0.5.1 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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" "+562dee4820c458d823175268e41601d4c060588a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 828f588cd954389072684d9ad030903fdf7eb74277e43bc706831550c34bdf0c [INFO] running `Command { std: "docker" "start" "-a" "828f588cd954389072684d9ad030903fdf7eb74277e43bc706831550c34bdf0c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "828f588cd954389072684d9ad030903fdf7eb74277e43bc706831550c34bdf0c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "828f588cd954389072684d9ad030903fdf7eb74277e43bc706831550c34bdf0c", kill_on_drop: false }` [INFO] [stdout] 828f588cd954389072684d9ad030903fdf7eb74277e43bc706831550c34bdf0c [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] cca9cdc5001c55777beba1fe9b340e5936527440926624729de720280fd00dfe [INFO] running `Command { std: "docker" "start" "-a" "cca9cdc5001c55777beba1fe9b340e5936527440926624729de720280fd00dfe", kill_on_drop: false }` [INFO] [stderr] Compiling semver v1.0.28 [INFO] [stderr] Compiling syn v2.0.117 [INFO] [stderr] Compiling syn v1.0.109 [INFO] [stderr] Compiling futures-task v0.3.32 [INFO] [stderr] Compiling slab v0.4.12 [INFO] [stderr] Compiling never v0.1.0 [INFO] [stderr] Compiling futures-channel v0.3.32 [INFO] [stderr] Compiling paste v1.0.15 [INFO] [stderr] Compiling arc-swap v1.9.1 [INFO] [stderr] Compiling rustc_version v0.4.1 [INFO] [stderr] Compiling async_executors v0.5.1 [INFO] [stderr] Compiling async_nursery v0.4.1 [INFO] [stderr] Compiling blanket v0.2.0 [INFO] [stderr] Compiling futures-macro v0.3.32 [INFO] [stderr] Compiling pin-project-internal v1.1.11 [INFO] [stderr] Compiling futures-util v0.3.32 [INFO] [stderr] Compiling pin-project v1.1.11 [INFO] [stderr] Compiling callbag v0.14.0 (/opt/rustwide/workdir) [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 11.73s [INFO] running `Command { std: "docker" "inspect" "cca9cdc5001c55777beba1fe9b340e5936527440926624729de720280fd00dfe", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "cca9cdc5001c55777beba1fe9b340e5936527440926624729de720280fd00dfe", kill_on_drop: false }` [INFO] [stdout] cca9cdc5001c55777beba1fe9b340e5936527440926624729de720280fd00dfe [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] c0077606066938687774614c163eca1656f07c05f8031783deb0ca5e3267cf8e [INFO] running `Command { std: "docker" "start" "-a" "c0077606066938687774614c163eca1656f07c05f8031783deb0ca5e3267cf8e", kill_on_drop: false }` [INFO] [stderr] Compiling futures-io v0.3.32 [INFO] [stderr] Compiling fastrand v2.4.1 [INFO] [stderr] Compiling rustix v1.1.4 [INFO] [stderr] Compiling once_cell v1.21.4 [INFO] [stderr] Compiling linux-raw-sys v0.12.1 [INFO] [stderr] Compiling libc v0.2.184 [INFO] [stderr] Compiling bitflags v2.11.0 [INFO] [stderr] Compiling async-io v2.6.0 [INFO] [stderr] Compiling value-bag v1.12.0 [INFO] [stderr] Compiling futures-sink v0.3.32 [INFO] [stderr] Compiling syn v1.0.109 [INFO] [stderr] Compiling syn v2.0.117 [INFO] [stderr] Compiling async_executors v0.5.1 [INFO] [stderr] Compiling event-listener v5.4.1 [INFO] [stderr] Compiling async-channel v1.9.0 [INFO] [stderr] Compiling async_nursery v0.4.1 [INFO] [stderr] Compiling futures-channel v0.3.32 [INFO] [stderr] Compiling smallvec v1.15.1 [INFO] [stderr] Compiling event-listener-strategy v0.5.4 [INFO] [stderr] Compiling async-channel v2.5.0 [INFO] [stderr] Compiling async-lock v3.4.2 [INFO] [stderr] Compiling tracing-core v0.1.36 [INFO] [stderr] Compiling futures-lite v2.6.1 [INFO] [stderr] Compiling piper v0.2.5 [INFO] [stderr] Compiling log v0.4.29 [INFO] [stderr] Compiling kv-log-macro v1.0.7 [INFO] [stderr] Compiling tracing-log v0.2.0 [INFO] [stderr] Compiling blocking v1.6.2 [INFO] [stderr] Compiling async-executor v1.14.0 [INFO] [stderr] Compiling errno v0.3.14 [INFO] [stderr] Compiling signal-hook-registry v1.4.8 [INFO] [stderr] Compiling async-attributes v1.1.2 [INFO] [stderr] Compiling blanket v0.2.0 [INFO] [stderr] Compiling futures-macro v0.3.32 [INFO] [stderr] Compiling tracing-attributes v0.1.31 [INFO] [stderr] Compiling pin-project-internal v1.1.11 [INFO] [stderr] Compiling test-log-macros v0.2.19 [INFO] [stderr] Compiling futures-util v0.3.32 [INFO] [stderr] Compiling polling v3.11.0 [INFO] [stderr] Compiling tracing v0.1.44 [INFO] [stderr] Compiling tracing-subscriber v0.3.23 [INFO] [stderr] Compiling pin-project v1.1.11 [INFO] [stderr] Compiling async-signal v0.2.14 [INFO] [stderr] Compiling async-global-executor v2.4.1 [INFO] [stderr] Compiling async-process v2.5.0 [INFO] [stderr] Compiling async-std v1.13.2 [INFO] [stderr] Compiling test-log v0.2.19 [INFO] [stderr] Compiling futures-executor v0.3.32 [INFO] [stderr] Compiling futures v0.3.32 [INFO] [stderr] Compiling tracing-futures v0.2.5 [INFO] [stderr] Compiling callbag v0.14.0 (/opt/rustwide/workdir) [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 45.61s [INFO] running `Command { std: "docker" "inspect" "c0077606066938687774614c163eca1656f07c05f8031783deb0ca5e3267cf8e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c0077606066938687774614c163eca1656f07c05f8031783deb0ca5e3267cf8e", kill_on_drop: false }` [INFO] [stdout] c0077606066938687774614c163eca1656f07c05f8031783deb0ca5e3267cf8e [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 8ca6fb80e816988f0a50bbf6c40c095dd6b8b492266f7d6fd1e70ceb94214c58 [INFO] running `Command { std: "docker" "start" "-a" "8ca6fb80e816988f0a50bbf6c40c095dd6b8b492266f7d6fd1e70ceb94214c58", kill_on_drop: false }` [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.17s [INFO] [stderr] Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/callbag-b6521090c4cd7c3c) [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] [stderr] Running tests/combine.rs (/opt/rustwide/target/debug/deps/combine-762dd0ecf2a535d5) [INFO] [stdout] [INFO] [stdout] running 5 tests [INFO] [stdout] test it_combines_pullable_sources ... ok [INFO] [stdout] test it_combines_2_async_finite_listenable_sources ... FAILED [INFO] [stdout] test it_combines_two_infinite_listenable_sources ... FAILED [INFO] [stdout] test it_returns_a_source_that_disposes_upon_upwards_end ... ok [INFO] [stdout] test it_combines_1_async_finite_listenable_source ... ok [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] [INFO] [stdout] ---- it_combines_2_async_finite_listenable_sources stdout ---- [INFO] [stdout] 2026-04-10T06:19:18.943535Z  INFO it_combines_2_async_finite_listenable_sources: combine: up (a): Handshake(Callbag) [INFO] [stdout] 2026-04-10T06:19:18.943654Z  INFO it_combines_2_async_finite_listenable_sources: combine: up (b): Handshake(Callbag<&str, never::Never>) [INFO] [stdout] 2026-04-10T06:19:18.943712Z  INFO it_combines_2_async_finite_listenable_sources: combine: down: Handshake(Callbag) [INFO] [stdout] [INFO] [stdout] ---- it_combines_two_infinite_listenable_sources stdout ---- [INFO] [stdout] 2026-04-10T06:19:18.943535Z  INFO it_combines_two_infinite_listenable_sources: combine: up (a): Handshake(Callbag) [INFO] [stdout] 2026-04-10T06:19:18.943675Z  INFO it_combines_two_infinite_listenable_sources: combine: up (b): Handshake(Callbag<&str, never::Never>) [INFO] [stdout] 2026-04-10T06:19:18.943724Z  INFO it_combines_two_infinite_listenable_sources: combine: down: Handshake(Callbag) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] it_combines_2_async_finite_listenable_sources [INFO] [stdout] it_combines_two_infinite_listenable_sources [INFO] [stdout] [INFO] [stdout] test result: FAILED. 3 passed; 2 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.72s [INFO] [stdout] [INFO] [stderr] error: test failed, to rerun pass `--test combine` [INFO] running `Command { std: "docker" "inspect" "8ca6fb80e816988f0a50bbf6c40c095dd6b8b492266f7d6fd1e70ceb94214c58", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8ca6fb80e816988f0a50bbf6c40c095dd6b8b492266f7d6fd1e70ceb94214c58", kill_on_drop: false }` [INFO] [stdout] 8ca6fb80e816988f0a50bbf6c40c095dd6b8b492266f7d6fd1e70ceb94214c58