[INFO] fetching crate future_handles 0.2.0...
[INFO] testing future_handles-0.2.0 against beta-2026-01-20 for beta-1.94-1
[INFO] extracting crate future_handles 0.2.0 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate future_handles 0.2.0
[INFO] finished tweaking crates.io crate future_handles 0.2.0
[INFO] tweaked toml for crates.io crate future_handles 0.2.0 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate future_handles 0.2.0 on toolchain beta-2026-01-20
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-01-20" "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-2026-01-20" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 25 packages to latest compatible versions
[INFO] [stderr]       Adding spinning_top v0.2.5 (available: v0.3.0)
[INFO] [stderr]       Adding thiserror v1.0.69 (available: v2.0.18)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-01-20" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-01-20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3f97dca76d1f91a0708c35b60ef3f3662cb13a0784e2782c95745529c9b19285
[INFO] running `Command { std: "docker" "start" "-a" "3f97dca76d1f91a0708c35b60ef3f3662cb13a0784e2782c95745529c9b19285", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3f97dca76d1f91a0708c35b60ef3f3662cb13a0784e2782c95745529c9b19285", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3f97dca76d1f91a0708c35b60ef3f3662cb13a0784e2782c95745529c9b19285", kill_on_drop: false }`
[INFO] [stdout] 3f97dca76d1f91a0708c35b60ef3f3662cb13a0784e2782c95745529c9b19285
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-01-20" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4cd4e98214e27a6472530b4ff9b68120fd1080691c2360d5df5fba7d07632278
[INFO] running `Command { std: "docker" "start" "-a" "4cd4e98214e27a6472530b4ff9b68120fd1080691c2360d5df5fba7d07632278", kill_on_drop: false }`
[INFO] [stderr]    Compiling futures-core v0.3.31
[INFO] [stderr]    Compiling syn v2.0.114
[INFO] [stderr]    Compiling futures-channel v0.3.31
[INFO] [stderr]    Compiling futures-macro v0.3.31
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]    Compiling futures-util v0.3.31
[INFO] [stderr]    Compiling thiserror v1.0.69
[INFO] [stderr]    Compiling futures-executor v0.3.31
[INFO] [stderr]    Compiling futures v0.3.31
[INFO] [stderr]    Compiling future_handles v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.97s
[INFO] running `Command { std: "docker" "inspect" "4cd4e98214e27a6472530b4ff9b68120fd1080691c2360d5df5fba7d07632278", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4cd4e98214e27a6472530b4ff9b68120fd1080691c2360d5df5fba7d07632278", kill_on_drop: false }`
[INFO] [stdout] 4cd4e98214e27a6472530b4ff9b68120fd1080691c2360d5df5fba7d07632278
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-01-20" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f27d3d1e2b96cd573870c936fb4ec9006ea92d5685dcbadc464da04924837dcc
[INFO] running `Command { std: "docker" "start" "-a" "f27d3d1e2b96cd573870c936fb4ec9006ea92d5685dcbadc464da04924837dcc", kill_on_drop: false }`
[INFO] [stderr]    Compiling futures-executor v0.3.31
[INFO] [stderr]    Compiling futures v0.3.31
[INFO] [stderr]    Compiling future_handles v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.00s
[INFO] running `Command { std: "docker" "inspect" "f27d3d1e2b96cd573870c936fb4ec9006ea92d5685dcbadc464da04924837dcc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f27d3d1e2b96cd573870c936fb4ec9006ea92d5685dcbadc464da04924837dcc", kill_on_drop: false }`
[INFO] [stdout] f27d3d1e2b96cd573870c936fb4ec9006ea92d5685dcbadc464da04924837dcc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-01-20" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] d8135dd7c630d367bdbe76adea8c9c54152bc965535de696d5db81e4d4f5b3fb
[INFO] running `Command { std: "docker" "start" "-a" "d8135dd7c630d367bdbe76adea8c9c54152bc965535de696d5db81e4d4f5b3fb", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/future_handles-59cc1c05fe6fe64a)
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test unsync::create::tests::drop ... ok
[INFO] [stdout] test unsync::create::tests::return_value ... ok
[INFO] [stdout] test unsync::create::tests::complete_before_await ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests future_handles
[INFO] [stdout] 
[INFO] [stdout] running 11 tests
[INFO] [stdout] test src/unsync/create.rs - unsync::create::CompleteHandle (line 120) ... FAILED
[INFO] [stdout] test src/unsync/create.rs - unsync::create::create (line 12) ... ok
[INFO] [stdout] test src/lib.rs - (line 64) ... ok
[INFO] [stdout] test src/unsync/create.rs - unsync::create::create (line 61) ... ok
[INFO] [stdout] test src/unsync/scoped.rs - unsync::scoped::scoped (line 8) ... FAILED
[INFO] [stdout] test src/unsync/create.rs - unsync::create::create (line 76) ... ok
[INFO] [stdout] test src/unsync/create.rs - unsync::create::CompleteHandle (line 103) ... ok
[INFO] [stdout] test src/unsync/create.rs - unsync::create::create (line 44) ... ok
[INFO] [stdout] test src/lib.rs - (line 18) ... ok
[INFO] [stdout] test src/lib.rs - (line 36) ... ok
[INFO] [stdout] test src/unsync/create.rs - unsync::create::CompletableFuture (line 180) ... ok
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/unsync/create.rs - unsync::create::CompleteHandle (line 120) stdout ----
[INFO] [stdout] error[E0432]: unresolved import `future_handles::sync`
[INFO] [stdout]    --> src/unsync/create.rs:123:21
[INFO] [stdout]     |
[INFO] [stdout] 123 | use future_handles::sync::CompleteHandle;
[INFO] [stdout]     |                     ^^^^ could not find `sync` in `future_handles`
[INFO] [stdout]     |
[INFO] [stdout] note: found an item that was configured out
[INFO] [stdout]    --> src/lib.rs:84:9
[INFO] [stdout]     |
[INFO] [stdout]  82 | #[cfg(feature = "sync")]
[INFO] [stdout]     |       ---------------- the item is gated behind the `sync` feature
[INFO] [stdout]  83 | #[cfg_attr(docsrs, doc(cfg(feature = "sync")))]
[INFO] [stdout]  84 | pub mod sync;
[INFO] [stdout]     |         ^^^^
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/unsync/scoped.rs - unsync::scoped::scoped (line 8) stdout ----
[INFO] [stdout] error[E0432]: unresolved import `future_handles::sync`
[INFO] [stdout]   --> src/unsync/scoped.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use future_handles::sync;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^ no `sync` in the root
[INFO] [stdout]    |
[INFO] [stdout] note: found an item that was configured out
[INFO] [stdout]   --> src/lib.rs:84:9
[INFO] [stdout]    |
[INFO] [stdout] 82 | #[cfg(feature = "sync")]
[INFO] [stdout]    |       ---------------- the item is gated behind the `sync` feature
[INFO] [stdout] 83 | #[cfg_attr(docsrs, doc(cfg(feature = "sync")))]
[INFO] [stdout] 84 | pub mod sync;
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] help: consider importing this module instead
[INFO] [stdout]    |
[INFO] [stdout] 10 - use future_handles::sync;
[INFO] [stdout] 10 + use std::sync;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `unsync`
[INFO] [stdout]   --> src/unsync/scoped.rs:12:14
[INFO] [stdout]    |
[INFO] [stdout] 12 | let future = unsync::scoped(|handle| {
[INFO] [stdout]    |              ^^^^^^ use of unresolved module or unlinked crate `unsync`
[INFO] [stdout]    |
[INFO] [stdout]    = help: if you wanted to use a crate named `unsync`, use `cargo add unsync` to add it to your `Cargo.toml`
[INFO] [stdout] help: consider importing this module
[INFO] [stdout]    |
[INFO] [stdout]  7 + use future_handles::unsync;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]   --> src/unsync/scoped.rs:12:30
[INFO] [stdout]    |
[INFO] [stdout] 12 | let future = unsync::scoped(|handle| {
[INFO] [stdout]    |                              ^^^^^^
[INFO] [stdout] 13 |     func_with_callback(|res| {
[INFO] [stdout] 14 |         handle.complete(res);
[INFO] [stdout]    |         ------ type must be known at this point
[INFO] [stdout]    |
[INFO] [stdout] help: consider giving this closure parameter an explicit type
[INFO] [stdout]    |
[INFO] [stdout] 12 | let future = unsync::scoped(|handle: /* Type */| {
[INFO] [stdout]    |                                    ++++++++++++
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0282, E0432, E0433.
[INFO] [stdout] For more information about an error, try `rustc --explain E0282`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/unsync/create.rs - unsync::create::CompleteHandle (line 120)
[INFO] [stdout]     src/unsync/scoped.rs - unsync::scoped::scoped (line 8)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 9 passed; 2 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.65s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "d8135dd7c630d367bdbe76adea8c9c54152bc965535de696d5db81e4d4f5b3fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d8135dd7c630d367bdbe76adea8c9c54152bc965535de696d5db81e4d4f5b3fb", kill_on_drop: false }`
[INFO] [stdout] d8135dd7c630d367bdbe76adea8c9c54152bc965535de696d5db81e4d4f5b3fb
