[INFO] fetching crate double-checked-cell-async 2.0.2...
[INFO] testing double-checked-cell-async-2.0.2 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate double-checked-cell-async 2.0.2 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate double-checked-cell-async 2.0.2
[INFO] finished tweaking crates.io crate double-checked-cell-async 2.0.2
[INFO] tweaked toml for crates.io crate double-checked-cell-async 2.0.2 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate double-checked-cell-async 2.0.2 on toolchain beta-2025-09-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "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-2025-09-21" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 24 packages to latest compatible versions
[INFO] [stderr]       Adding tokio v0.2.25 (available: v1.47.1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 84aa5c1a3e8de039f6d92bae04bde49da235af961895d9f8b90ad32d82c5b71d
[INFO] running `Command { std: "docker" "start" "-a" "84aa5c1a3e8de039f6d92bae04bde49da235af961895d9f8b90ad32d82c5b71d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "84aa5c1a3e8de039f6d92bae04bde49da235af961895d9f8b90ad32d82c5b71d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "84aa5c1a3e8de039f6d92bae04bde49da235af961895d9f8b90ad32d82c5b71d", kill_on_drop: false }`
[INFO] [stdout] 84aa5c1a3e8de039f6d92bae04bde49da235af961895d9f8b90ad32d82c5b71d
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 396e7ee51046d027963199dff5849bb24bc9bd093d6b230476541a20b79d33d6
[INFO] running `Command { std: "docker" "start" "-a" "396e7ee51046d027963199dff5849bb24bc9bd093d6b230476541a20b79d33d6", kill_on_drop: false }`
[INFO] [stderr]    Compiling futures-core v0.3.31
[INFO] [stderr]    Compiling futures-sink v0.3.31
[INFO] [stderr]    Compiling futures-task v0.3.31
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling slab v0.4.11
[INFO] [stderr]    Compiling pin-utils v0.1.0
[INFO] [stderr]    Compiling futures-io v0.3.31
[INFO] [stderr]    Compiling futures-macro v0.3.31
[INFO] [stderr]    Compiling unreachable v1.0.0
[INFO] [stderr]    Compiling futures-channel v0.3.31
[INFO] [stderr]    Compiling futures-util v0.3.31
[INFO] [stderr]    Compiling double-checked-cell-async v2.0.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.77s
[INFO] running `Command { std: "docker" "inspect" "396e7ee51046d027963199dff5849bb24bc9bd093d6b230476541a20b79d33d6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "396e7ee51046d027963199dff5849bb24bc9bd093d6b230476541a20b79d33d6", kill_on_drop: false }`
[INFO] [stdout] 396e7ee51046d027963199dff5849bb24bc9bd093d6b230476541a20b79d33d6
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ed396baa6150b174fa17becb4c7d36d6040f15d66fa6beef79eba1bac7597c2b
[INFO] running `Command { std: "docker" "start" "-a" "ed396baa6150b174fa17becb4c7d36d6040f15d66fa6beef79eba1bac7597c2b", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling futures-executor v0.3.31
[INFO] [stderr]    Compiling pin-project-lite v0.1.12
[INFO] [stderr]    Compiling bytes v0.5.6
[INFO] [stderr]    Compiling futures v0.3.31
[INFO] [stderr]    Compiling tokio-macros v0.2.6
[INFO] [stderr]    Compiling tokio v0.2.25
[INFO] [stderr]    Compiling double-checked-cell-async v2.0.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 8.52s
[INFO] running `Command { std: "docker" "inspect" "ed396baa6150b174fa17becb4c7d36d6040f15d66fa6beef79eba1bac7597c2b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ed396baa6150b174fa17becb4c7d36d6040f15d66fa6beef79eba1bac7597c2b", kill_on_drop: false }`
[INFO] [stdout] ed396baa6150b174fa17becb4c7d36d6040f15d66fa6beef79eba1bac7597c2b
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 02042f0410f2f3e7a01246429ac437f942369c4600da7e63200ad9370945d855
[INFO] running `Command { std: "docker" "start" "-a" "02042f0410f2f3e7a01246429ac437f942369c4600da7e63200ad9370945d855", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/double_checked_cell_async-418411e56b465965)
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test tests::test_sync_send ... ok
[INFO] [stdout] test tests::test_threading ... ok
[INFO] [stdout] test tests::test_drop ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests double_checked_cell_async
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test src/lib.rs - DoubleCheckedCell<T>::get_or_init (line 162) ... FAILED
[INFO] [stdout] test src/lib.rs - DoubleCheckedCell<T>::into_inner (line 278) ... FAILED
[INFO] [stdout] test src/lib.rs - (line 48) ... FAILED
[INFO] [stdout] test src/lib.rs - DoubleCheckedCell<T>::new (line 115) ... FAILED
[INFO] [stdout] test src/lib.rs - DoubleCheckedCell<T>::get_or_try_init (line 202) ... FAILED
[INFO] [stdout] test src/lib.rs - DoubleCheckedCell<T>::get (line 137) ... FAILED
[INFO] [stdout] test src/lib.rs - (line 20) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - DoubleCheckedCell<T>::get_or_init (line 162) stdout ----
[INFO] [stdout] error[E0432]: unresolved import `double_checked_cell`
[INFO] [stdout]  --> src/lib.rs:165:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use double_checked_cell::DoubleCheckedCell;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^ use of unresolved module or unlinked crate `double_checked_cell`
[INFO] [stdout]   |
[INFO] [stdout] help: there is a crate or module with a similar name
[INFO] [stdout]   |
[INFO] [stdout] 4 | use double_checked_cell_async::DoubleCheckedCell;
[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/lib.rs - DoubleCheckedCell<T>::into_inner (line 278) stdout ----
[INFO] [stdout] error[E0432]: unresolved import `double_checked_cell`
[INFO] [stdout]  --> src/lib.rs:281:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use double_checked_cell::DoubleCheckedCell;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^ use of unresolved module or unlinked crate `double_checked_cell`
[INFO] [stdout]   |
[INFO] [stdout] help: there is a crate or module with a similar name
[INFO] [stdout]   |
[INFO] [stdout] 4 | use double_checked_cell_async::DoubleCheckedCell;
[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/lib.rs - (line 48) stdout ----
[INFO] [stdout] error[E0432]: unresolved import `double_checked_cell`
[INFO] [stdout]  --> src/lib.rs:53:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use double_checked_cell::DoubleCheckedCell;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^ use of unresolved module or unlinked crate `double_checked_cell`
[INFO] [stdout]   |
[INFO] [stdout] help: there is a crate or module with a similar name
[INFO] [stdout]   |
[INFO] [stdout] 6 | use double_checked_cell_async::DoubleCheckedCell;
[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/lib.rs - DoubleCheckedCell<T>::new (line 115) stdout ----
[INFO] [stdout] error[E0432]: unresolved import `double_checked_cell`
[INFO] [stdout]  --> src/lib.rs:118:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use double_checked_cell::DoubleCheckedCell;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^ use of unresolved module or unlinked crate `double_checked_cell`
[INFO] [stdout]   |
[INFO] [stdout] help: there is a crate or module with a similar name
[INFO] [stdout]   |
[INFO] [stdout] 4 | use double_checked_cell_async::DoubleCheckedCell;
[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/lib.rs - DoubleCheckedCell<T>::get_or_try_init (line 202) stdout ----
[INFO] [stdout] error[E0432]: unresolved import `double_checked_cell`
[INFO] [stdout]  --> src/lib.rs:205:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use double_checked_cell::DoubleCheckedCell;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^ use of unresolved module or unlinked crate `double_checked_cell`
[INFO] [stdout]   |
[INFO] [stdout] help: there is a crate or module with a similar name
[INFO] [stdout]   |
[INFO] [stdout] 4 | use double_checked_cell_async::DoubleCheckedCell;
[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/lib.rs - DoubleCheckedCell<T>::get (line 137) stdout ----
[INFO] [stdout] error[E0432]: unresolved import `double_checked_cell`
[INFO] [stdout]  --> src/lib.rs:140:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use double_checked_cell::DoubleCheckedCell;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^ use of unresolved module or unlinked crate `double_checked_cell`
[INFO] [stdout]   |
[INFO] [stdout] help: there is a crate or module with a similar name
[INFO] [stdout]   |
[INFO] [stdout] 4 | use double_checked_cell_async::DoubleCheckedCell;
[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/lib.rs - (line 20) stdout ----
[INFO] [stdout] error[E0432]: unresolved import `double_checked_cell`
[INFO] [stdout]  --> src/lib.rs:23:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use double_checked_cell::DoubleCheckedCell;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^ use of unresolved module or unlinked crate `double_checked_cell`
[INFO] [stdout]   |
[INFO] [stdout] help: there is a crate or module with a similar name
[INFO] [stdout]   |
[INFO] [stdout] 4 | use double_checked_cell_async::DoubleCheckedCell;
[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] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - (line 20)
[INFO] [stdout]     src/lib.rs - (line 48)
[INFO] [stdout]     src/lib.rs - DoubleCheckedCell<T>::get (line 137)
[INFO] [stdout]     src/lib.rs - DoubleCheckedCell<T>::get_or_init (line 162)
[INFO] [stdout]     src/lib.rs - DoubleCheckedCell<T>::get_or_try_init (line 202)
[INFO] [stdout]     src/lib.rs - DoubleCheckedCell<T>::into_inner (line 278)
[INFO] [stdout]     src/lib.rs - DoubleCheckedCell<T>::new (line 115)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 7 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.46s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "02042f0410f2f3e7a01246429ac437f942369c4600da7e63200ad9370945d855", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "02042f0410f2f3e7a01246429ac437f942369c4600da7e63200ad9370945d855", kill_on_drop: false }`
[INFO] [stdout] 02042f0410f2f3e7a01246429ac437f942369c4600da7e63200ad9370945d855