[INFO] cloning repository https://github.com/yuezato/fibers_extra
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/yuezato/fibers_extra" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyuezato%2Ffibers_extra", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyuezato%2Ffibers_extra'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 564b18d37e6098071b1cbffc0181778f0de63667
[INFO] testing yuezato/fibers_extra against master#432e145bd5a974c5b6f4dd9b352891bd7502b69d for pr-87041
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyuezato%2Ffibers_extra" "/workspace/builds/worker-13/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/yuezato/fibers_extra on toolchain 432e145bd5a974c5b6f4dd9b352891bd7502b69d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/yuezato/fibers_extra
[INFO] finished tweaking git repo https://github.com/yuezato/fibers_extra
[INFO] tweaked toml for git repo https://github.com/yuezato/fibers_extra written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate git repo https://github.com/yuezato/fibers_extra already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] efddfa6d9aaff4e482ebc46dae2779bdba5ca9cc226b65e0a3041f71d1f02308
[INFO] running `Command { std: "docker" "start" "-a" "efddfa6d9aaff4e482ebc46dae2779bdba5ca9cc226b65e0a3041f71d1f02308", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "efddfa6d9aaff4e482ebc46dae2779bdba5ca9cc226b65e0a3041f71d1f02308", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "efddfa6d9aaff4e482ebc46dae2779bdba5ca9cc226b65e0a3041f71d1f02308", kill_on_drop: false }`
[INFO] [stdout] efddfa6d9aaff4e482ebc46dae2779bdba5ca9cc226b65e0a3041f71d1f02308
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 3b27d7670fe7e5022d3765b690733817f900899542e4fa7bd8a8003a876337db
[INFO] running `Command { std: "docker" "start" "-a" "3b27d7670fe7e5022d3765b690733817f900899542e4fa7bd8a8003a876337db", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v0.4.27
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling num-traits v0.2.6
[INFO] [stderr]    Compiling slab v0.4.2
[INFO] [stderr]    Compiling nbchan v0.1.3
[INFO] [stderr]    Compiling splay_tree v0.2.10
[INFO] [stderr]    Compiling futures v0.1.25
[INFO] [stderr]    Compiling log v0.4.6
[INFO] [stderr]    Compiling net2 v0.2.33
[INFO] [stderr]    Compiling iovec v0.1.2
[INFO] [stderr]    Compiling time v0.1.42
[INFO] [stderr]    Compiling num_cpus v1.10.0
[INFO] [stderr]    Compiling mio v0.6.16
[INFO] [stderr]    Compiling quote v0.6.11
[INFO] [stderr]    Compiling syn v0.15.27
[INFO] [stderr]    Compiling num-integer v0.1.39
[INFO] [stderr]    Compiling fibers v0.1.12
[INFO] [stderr]    Compiling chrono v0.4.6
[INFO] [stderr]    Compiling trackable_derive v0.1.2
[INFO] [stderr]    Compiling trackable v0.2.21
[INFO] [stderr]    Compiling fibers_extra v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 24.75s
[INFO] running `Command { std: "docker" "inspect" "3b27d7670fe7e5022d3765b690733817f900899542e4fa7bd8a8003a876337db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3b27d7670fe7e5022d3765b690733817f900899542e4fa7bd8a8003a876337db", kill_on_drop: false }`
[INFO] [stdout] 3b27d7670fe7e5022d3765b690733817f900899542e4fa7bd8a8003a876337db
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ee0c3d58e2da69486798405ade3db3d5465a20605764c54f95547031efe593b0
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "ee0c3d58e2da69486798405ade3db3d5465a20605764c54f95547031efe593b0", kill_on_drop: false }`
[INFO] [stderr]    Compiling fibers_extra v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/parallel_executor.rs:412:24
[INFO] [stdout]     |
[INFO] [stdout] 412 |         generator: Box<Fn() -> TestFuture + Send + 'static>,
[INFO] [stdout]     |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn() -> TestFuture + Send + 'static`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 3.26s
[INFO] running `Command { std: "docker" "inspect" "ee0c3d58e2da69486798405ade3db3d5465a20605764c54f95547031efe593b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ee0c3d58e2da69486798405ade3db3d5465a20605764c54f95547031efe593b0", kill_on_drop: false }`
[INFO] [stdout] ee0c3d58e2da69486798405ade3db3d5465a20605764c54f95547031efe593b0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] d76b56a783b41c33ffc610d74ee87744859f51691c301448e9f33441af023e73
[INFO] running `Command { std: "docker" "start" "-a" "d76b56a783b41c33ffc610d74ee87744859f51691c301448e9f33441af023e73", kill_on_drop: false }`
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/parallel_executor.rs:412:24
[INFO] [stderr]     |
[INFO] [stderr] 412 |         generator: Box<Fn() -> TestFuture + Send + 'static>,
[INFO] [stderr]     |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn() -> TestFuture + Send + 'static`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/fibers_extra-7085d3fd6be8c3e6)
[INFO] [stdout] running 13 tests
[INFO] [stdout] test collector::tests::collect_test1 ... ok
[INFO] [stdout] test parallel_executor::tests::parallel_executor_as_map ... ok
[INFO] [stdout] test parallel_executor::tests::check_concurrency_level4_works ... ok
[INFO] [stdout] test parallel_executor::tests::one_level_parallel_executor_with_error ... ok
[INFO] [stdout] test parallel_executor::tests::two_level_parallel_executor_with_errors3 ... ok
[INFO] [stdout] test parallel_executor::tests::two_level_parallel_executor_with_errors2 ... ok
[INFO] [stdout] test parallel_executor::tests::two_level_parallel_executor_with_errors1 ... ok
[INFO] [stdout] test parallel_executor::tests::two_level_parallel_executor_works2 ... ok
[INFO] [stdout] test parallel_executor::tests::two_level_parallel_executor_works3 ... ok
[INFO] [stdout] test parallel_executor::tests::check_concurrency_level1_works ... ok
[INFO] [stdout] test parallel_executor::tests::two_level_parallel_executor_works1 ... ok
[INFO] [stdout] test parallel_executor::tests::two_level_parallel_executor_works5 ... ok
[INFO] [stdout] test parallel_executor::tests::two_level_parallel_executor_works4 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 13 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 12.32s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/fibers_extra-c31475830052b3ec)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests fibers_extra
[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] [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] running `Command { std: "docker" "inspect" "d76b56a783b41c33ffc610d74ee87744859f51691c301448e9f33441af023e73", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d76b56a783b41c33ffc610d74ee87744859f51691c301448e9f33441af023e73", kill_on_drop: false }`
[INFO] [stdout] d76b56a783b41c33ffc610d74ee87744859f51691c301448e9f33441af023e73