[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 try#ce59db7a1b1b012fb2793c4641c1bdecad7a128b for pr-85530
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyuezato%2Ffibers_extra" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/yuezato/fibers_extra on toolchain ce59db7a1b1b012fb2793c4641c1bdecad7a128b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "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-2/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" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded trackable v0.2.21
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 30bd4a55ed0a6d5331786be3037d534afd57ab71e98c479ea52f188ce3fa7fd4
[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" "30bd4a55ed0a6d5331786be3037d534afd57ab71e98c479ea52f188ce3fa7fd4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "30bd4a55ed0a6d5331786be3037d534afd57ab71e98c479ea52f188ce3fa7fd4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "30bd4a55ed0a6d5331786be3037d534afd57ab71e98c479ea52f188ce3fa7fd4", kill_on_drop: false }`
[INFO] [stdout] 30bd4a55ed0a6d5331786be3037d534afd57ab71e98c479ea52f188ce3fa7fd4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b4a312943864d72617b366195ab2c3ea6bc6bce45dcd556fb66f6acc1e4fc6b5
[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" "b4a312943864d72617b366195ab2c3ea6bc6bce45dcd556fb66f6acc1e4fc6b5", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.50
[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 num-integer v0.1.39
[INFO] [stderr]    Compiling slab v0.4.2
[INFO] [stderr]    Compiling lazycell v1.2.1
[INFO] [stderr]    Compiling splay_tree v0.2.10
[INFO] [stderr]    Compiling nbchan v0.1.3
[INFO] [stderr]    Compiling futures v0.1.25
[INFO] [stderr]    Compiling log v0.4.6
[INFO] [stderr]    Compiling iovec v0.1.2
[INFO] [stderr]    Compiling net2 v0.2.33
[INFO] [stderr]    Compiling time v0.1.42
[INFO] [stderr]    Compiling num_cpus v1.10.0
[INFO] [stderr]    Compiling quote v0.6.11
[INFO] [stderr]    Compiling syn v0.15.27
[INFO] [stderr]    Compiling mio v0.6.16
[INFO] [stderr]    Compiling chrono v0.4.6
[INFO] [stderr]    Compiling fibers v0.1.12
[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 27.63s
[INFO] running `Command { std: "docker" "inspect" "b4a312943864d72617b366195ab2c3ea6bc6bce45dcd556fb66f6acc1e4fc6b5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b4a312943864d72617b366195ab2c3ea6bc6bce45dcd556fb66f6acc1e4fc6b5", kill_on_drop: false }`
[INFO] [stdout] b4a312943864d72617b366195ab2c3ea6bc6bce45dcd556fb66f6acc1e4fc6b5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f801b33a859513883e200e6e08c22562a9f0fb23ddf1fd9c0907635178d7d32e
[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" "f801b33a859513883e200e6e08c22562a9f0fb23ddf1fd9c0907635178d7d32e", 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 was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[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 3.59s
[INFO] running `Command { std: "docker" "inspect" "f801b33a859513883e200e6e08c22562a9f0fb23ddf1fd9c0907635178d7d32e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f801b33a859513883e200e6e08c22562a9f0fb23ddf1fd9c0907635178d7d32e", kill_on_drop: false }`
[INFO] [stdout] f801b33a859513883e200e6e08c22562a9f0fb23ddf1fd9c0907635178d7d32e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 8a7c122807623cbad201728f38071dd2699be7174e68b7ca705aa8c6e114f90f
[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" "8a7c122807623cbad201728f38071dd2699be7174e68b7ca705aa8c6e114f90f", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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 was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[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 0.32s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/fibers_extra-8bbff4a27ee7d356)
[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_works4 ... ok
[INFO] [stdout] test parallel_executor::tests::two_level_parallel_executor_works5 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 13 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 12.11s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/fibers_extra-d2e1bd3cfdc3f9d9)
[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 fibers_extra
[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" "8a7c122807623cbad201728f38071dd2699be7174e68b7ca705aa8c6e114f90f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8a7c122807623cbad201728f38071dd2699be7174e68b7ca705aa8c6e114f90f", kill_on_drop: false }`
[INFO] [stdout] 8a7c122807623cbad201728f38071dd2699be7174e68b7ca705aa8c6e114f90f