[INFO] fetching crate rtx 0.1.0...
[INFO] testing rtx-0.1.0 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate rtx 0.1.0 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate rtx 0.1.0
[INFO] finished tweaking crates.io crate rtx 0.1.0
[INFO] tweaked toml for crates.io crate rtx 0.1.0 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate rtx 0.1.0 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] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 87 packages to latest compatible versions
[INFO] [stderr]       Adding async-io v1.13.0 (available: v2.6.0)
[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-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] ddd47e12ba08e733b76af5ff65260ec7934fce0cc691e7b1f67be91190024d30
[INFO] running `Command { std: "docker" "start" "-a" "ddd47e12ba08e733b76af5ff65260ec7934fce0cc691e7b1f67be91190024d30", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ddd47e12ba08e733b76af5ff65260ec7934fce0cc691e7b1f67be91190024d30", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ddd47e12ba08e733b76af5ff65260ec7934fce0cc691e7b1f67be91190024d30", kill_on_drop: false }`
[INFO] [stdout] ddd47e12ba08e733b76af5ff65260ec7934fce0cc691e7b1f67be91190024d30
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] b3c8c0669fd5b2464754e765e68c65c865e7411b5382a93dfd452f7d5b636c3d
[INFO] running `Command { std: "docker" "start" "-a" "b3c8c0669fd5b2464754e765e68c65c865e7411b5382a93dfd452f7d5b636c3d", kill_on_drop: false }`
[INFO] [stderr]    Compiling rtx v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.24s
[INFO] running `Command { std: "docker" "inspect" "b3c8c0669fd5b2464754e765e68c65c865e7411b5382a93dfd452f7d5b636c3d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b3c8c0669fd5b2464754e765e68c65c865e7411b5382a93dfd452f7d5b636c3d", kill_on_drop: false }`
[INFO] [stdout] b3c8c0669fd5b2464754e765e68c65c865e7411b5382a93dfd452f7d5b636c3d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 905b1a05a3c85752e198175e772285136940f48af98567b03209c8b4d769c73d
[INFO] running `Command { std: "docker" "start" "-a" "905b1a05a3c85752e198175e772285136940f48af98567b03209c8b4d769c73d", kill_on_drop: false }`
[INFO] [stderr]    Compiling rtx v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.29s
[INFO] running `Command { std: "docker" "inspect" "905b1a05a3c85752e198175e772285136940f48af98567b03209c8b4d769c73d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "905b1a05a3c85752e198175e772285136940f48af98567b03209c8b4d769c73d", kill_on_drop: false }`
[INFO] [stdout] 905b1a05a3c85752e198175e772285136940f48af98567b03209c8b4d769c73d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 975b36213a93926401d7fdc53be0c289c16a173f157a1640a60338f40654733c
[INFO] running `Command { std: "docker" "start" "-a" "975b36213a93926401d7fdc53be0c289c16a173f157a1640a60338f40654733c", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.11s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/rtx-92484401a3d826fe)
[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]    Doc-tests rtx
[INFO] [stderr] error[E0432]: unresolved import `futures_io`
[INFO] [stderr]   --> src/io.rs:16:9
[INFO] [stderr]    |
[INFO] [stderr] 16 | pub use futures_io::AsyncRead;
[INFO] [stderr]    |         ^^^^^^^^^^ use of unresolved module or unlinked crate `futures_io`
[INFO] [stderr]    |
[INFO] [stderr]    = help: if you wanted to use a crate named `futures_io`, use `cargo add futures_io` to add it to your `Cargo.toml`
[INFO] [stderr] 
[INFO] [stderr] error[E0432]: unresolved import `futures_io`
[INFO] [stderr]   --> src/io.rs:20:9
[INFO] [stderr]    |
[INFO] [stderr] 20 | pub use futures_io::AsyncWrite;
[INFO] [stderr]    |         ^^^^^^^^^^ use of unresolved module or unlinked crate `futures_io`
[INFO] [stderr]    |
[INFO] [stderr]    = help: if you wanted to use a crate named `futures_io`, use `cargo add futures_io` to add it to your `Cargo.toml`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0432`.
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/beta-2026-04-21-x86_64-unknown-linux-gnu/bin/rustdoc --edition=2021 --crate-type lib --color auto --crate-name rtx --test src/lib.rs --test-run-directory /opt/rustwide/workdir --extern pin_project_lite=/opt/rustwide/target/debug/deps/libpin_project_lite-dbd15b1f007a2c34.rlib --extern rtx=/opt/rustwide/target/debug/deps/librtx-f0261f5421168500.rlib --extern smallvec=/opt/rustwide/target/debug/deps/libsmallvec-f1edee636e9ac88b.rlib -L dependency=/opt/rustwide/target/debug/deps -C embed-bitcode=no --cfg 'feature="default"' --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values("async", "async-io", "async-std", "async-std_", "blocking", "default", "futures-core", "futures-io", "futures-util", "tokio", "tokio_"))' --cap-lints=warn --error-format human` (exit status: 1)
[INFO] [stderr] note: test exited abnormally; to see the full output pass --no-capture to the harness.
[INFO] running `Command { std: "docker" "inspect" "975b36213a93926401d7fdc53be0c289c16a173f157a1640a60338f40654733c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "975b36213a93926401d7fdc53be0c289c16a173f157a1640a60338f40654733c", kill_on_drop: false }`
[INFO] [stdout] 975b36213a93926401d7fdc53be0c289c16a173f157a1640a60338f40654733c
