[INFO] fetching crate page-turner 1.0.0...
[INFO] testing page-turner-1.0.0 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate page-turner 1.0.0 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate page-turner 1.0.0
[INFO] finished tweaking crates.io crate page-turner 1.0.0
[INFO] tweaked toml for crates.io crate page-turner 1.0.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate page-turner 1.0.0 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 17 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-2026-04-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: `default_features` is deprecated in favor of `default-features` and will not work in the 2024 edition
[INFO] [stderr] (in the `futures` dependency)
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] e31d77cb36fcc1401c79f373b7b0c6a734472b9e1b2949e253f2930330d4f9b1
[INFO] running `Command { std: "docker" "start" "-a" "e31d77cb36fcc1401c79f373b7b0c6a734472b9e1b2949e253f2930330d4f9b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e31d77cb36fcc1401c79f373b7b0c6a734472b9e1b2949e253f2930330d4f9b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e31d77cb36fcc1401c79f373b7b0c6a734472b9e1b2949e253f2930330d4f9b1", kill_on_drop: false }`
[INFO] [stdout] e31d77cb36fcc1401c79f373b7b0c6a734472b9e1b2949e253f2930330d4f9b1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 5993387f224271c1339ffc44bad7174e4261870f1c98c0eb0823c8efcef5fcab
[INFO] running `Command { std: "docker" "start" "-a" "5993387f224271c1339ffc44bad7174e4261870f1c98c0eb0823c8efcef5fcab", kill_on_drop: false }`
[INFO] [stderr] warning: `default_features` is deprecated in favor of `default-features` and will not work in the 2024 edition
[INFO] [stderr] (in the `futures` dependency)
[INFO] [stderr]    Compiling futures-core v0.3.32
[INFO] [stderr]    Compiling futures-sink v0.3.32
[INFO] [stderr]    Compiling slab v0.4.12
[INFO] [stderr]    Compiling futures-channel v0.3.32
[INFO] [stderr]    Compiling futures-util v0.3.32
[INFO] [stderr]    Compiling futures v0.3.32
[INFO] [stderr]    Compiling page-turner v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.08s
[INFO] running `Command { std: "docker" "inspect" "5993387f224271c1339ffc44bad7174e4261870f1c98c0eb0823c8efcef5fcab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5993387f224271c1339ffc44bad7174e4261870f1c98c0eb0823c8efcef5fcab", kill_on_drop: false }`
[INFO] [stdout] 5993387f224271c1339ffc44bad7174e4261870f1c98c0eb0823c8efcef5fcab
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 925f16983f895fa9e0ea025a69549c498c661cc736c5b14d9514f52990cf2b55
[INFO] running `Command { std: "docker" "start" "-a" "925f16983f895fa9e0ea025a69549c498c661cc736c5b14d9514f52990cf2b55", kill_on_drop: false }`
[INFO] [stderr] warning: `default_features` is deprecated in favor of `default-features` and will not work in the 2024 edition
[INFO] [stderr] (in the `futures` dependency)
[INFO] [stderr]    Compiling syn v2.0.117
[INFO] [stderr]    Compiling tokio-macros v2.7.0
[INFO] [stderr]    Compiling tokio v1.52.1
[INFO] [stderr]    Compiling page-turner v1.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused implementer of `futures::Future` that must be used
[INFO] [stdout]   --> src/mt/tests.rs:34:5
[INFO] [stdout]    |
[INFO] [stdout] 34 |     is_send(p.turn_page(req.clone()));
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: futures do nothing unless you `.await` or poll them
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused implementer of `futures::Future` that must be used
[INFO] [stdout]   --> src/mt/tests.rs:49:5
[INFO] [stdout]    |
[INFO] [stdout] 49 |     is_send(p.turn_page(req.clone()));
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: futures do nothing unless you `.await` or poll them
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused implementer of `futures::Future` that must be used
[INFO] [stdout]   --> src/mt/tests.rs:64:5
[INFO] [stdout]    |
[INFO] [stdout] 64 |     is_send(p.turn_page(req.clone()));
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: futures do nothing unless you `.await` or poll them
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 9.42s
[INFO] running `Command { std: "docker" "inspect" "925f16983f895fa9e0ea025a69549c498c661cc736c5b14d9514f52990cf2b55", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "925f16983f895fa9e0ea025a69549c498c661cc736c5b14d9514f52990cf2b55", kill_on_drop: false }`
[INFO] [stdout] 925f16983f895fa9e0ea025a69549c498c661cc736c5b14d9514f52990cf2b55
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] def5ab0a2b528a5cfc6f46191c0404b3785a6307ca5be69af469e0ffa7dda316
[INFO] running `Command { std: "docker" "start" "-a" "def5ab0a2b528a5cfc6f46191c0404b3785a6307ca5be69af469e0ffa7dda316", kill_on_drop: false }`
[INFO] [stderr] warning: `default_features` is deprecated in favor of `default-features` and will not work in the 2024 edition
[INFO] [stderr] (in the `futures` dependency)
[INFO] [stderr] warning: unused implementer of `futures::Future` that must be used
[INFO] [stderr]   --> src/mt/tests.rs:34:5
[INFO] [stderr]    |
[INFO] [stderr] 34 |     is_send(p.turn_page(req.clone()));
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: futures do nothing unless you `.await` or poll them
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused implementer of `futures::Future` that must be used
[INFO] [stderr]   --> src/mt/tests.rs:49:5
[INFO] [stderr]    |
[INFO] [stderr] 49 |     is_send(p.turn_page(req.clone()));
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: futures do nothing unless you `.await` or poll them
[INFO] [stderr] 
[INFO] [stderr] warning: unused implementer of `futures::Future` that must be used
[INFO] [stderr]   --> src/mt/tests.rs:64:5
[INFO] [stderr]    |
[INFO] [stderr] 64 |     is_send(p.turn_page(req.clone()));
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: futures do nothing unless you `.await` or poll them
[INFO] [stderr] 
[INFO] [stderr] warning: `page-turner` (lib test) generated 3 warnings
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/page_turner-23ce93b6bb28a02a)
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test mt::tests::pages ... ok
[INFO] [stdout] test internal::itertools::tests::request_iter ... ok
[INFO] [stdout] test internal::itertools::tests::chunks_ext ... ok
[INFO] [stdout] test mt::tests::pages_ahead_unordered ... ok
[INFO] [stdout] test mt::tests::pages_ahead ... ok
[INFO] [stderr]    Doc-tests page_turner
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.09s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test src/mt/mod.rs - mt::PageTurner::into_pages (line 54) ... ignored
[INFO] [stdout] test src/mt/mod.rs - mt::PageTurner::into_pages (line 68) ... ignored
[INFO] [stdout] test src/lib.rs - (line 39) ... ok
[INFO] [stdout] test src/lib.rs - (line 7) ... ok
[INFO] [stdout] test src/lib.rs - (line 87) ... ok
[INFO] [stdout] test src/lib.rs - (line 203) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 2 ignored; 0 measured; 0 filtered out; finished in 1.06s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "def5ab0a2b528a5cfc6f46191c0404b3785a6307ca5be69af469e0ffa7dda316", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "def5ab0a2b528a5cfc6f46191c0404b3785a6307ca5be69af469e0ffa7dda316", kill_on_drop: false }`
[INFO] [stdout] def5ab0a2b528a5cfc6f46191c0404b3785a6307ca5be69af469e0ffa7dda316
