[INFO] fetching crate fibers 0.1.13...
[INFO] testing fibers-0.1.13 against 1.55.0 for beta-1.56-1
[INFO] extracting crate fibers 0.1.13 into /workspace/builds/worker-11/source
[INFO] validating manifest of crates.io crate fibers 0.1.13 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate fibers 0.1.13
[INFO] finished tweaking crates.io crate fibers 0.1.13
[INFO] tweaked toml for crates.io crate fibers 0.1.13 written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate crates.io crate fibers 0.1.13 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded handy_async v0.2.13
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8c7fc1c8cc75c2fba7596cfa4c8cfd1bf25295d4bd6cb3cf3a5ee14b5602ebcf
[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" "8c7fc1c8cc75c2fba7596cfa4c8cfd1bf25295d4bd6cb3cf3a5ee14b5602ebcf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8c7fc1c8cc75c2fba7596cfa4c8cfd1bf25295d4bd6cb3cf3a5ee14b5602ebcf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8c7fc1c8cc75c2fba7596cfa4c8cfd1bf25295d4bd6cb3cf3a5ee14b5602ebcf", kill_on_drop: false }`
[INFO] [stdout] 8c7fc1c8cc75c2fba7596cfa4c8cfd1bf25295d4bd6cb3cf3a5ee14b5602ebcf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "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] 0c41958d4fec09816a269189951f32d46b6aa7e8a5cf371b720276cdef0309ee
[INFO] running `Command { std: "docker" "start" "-a" "0c41958d4fec09816a269189951f32d46b6aa7e8a5cf371b720276cdef0309ee", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.65
[INFO] [stderr]    Compiling iovec v0.1.4
[INFO] [stderr]    Compiling net2 v0.2.33
[INFO] [stderr]    Compiling num_cpus v1.11.1
[INFO] [stderr]    Compiling mio v0.6.19
[INFO] [stderr]    Compiling fibers v0.1.13 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.28s
[INFO] running `Command { std: "docker" "inspect" "0c41958d4fec09816a269189951f32d46b6aa7e8a5cf371b720276cdef0309ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0c41958d4fec09816a269189951f32d46b6aa7e8a5cf371b720276cdef0309ee", kill_on_drop: false }`
[INFO] [stdout] 0c41958d4fec09816a269189951f32d46b6aa7e8a5cf371b720276cdef0309ee
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--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] 63c01361a54c079bc079d73ebbb9b183d5d8d6b27b9865afebc402d0266f5fa8
[INFO] running `Command { std: "docker" "start" "-a" "63c01361a54c079bc079d73ebbb9b183d5d8d6b27b9865afebc402d0266f5fa8", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-width v0.1.6
[INFO] [stderr]    Compiling atty v0.2.13
[INFO] [stderr]    Compiling handy_async v0.2.13
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling fibers v0.1.13 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 16.02s
[INFO] running `Command { std: "docker" "inspect" "63c01361a54c079bc079d73ebbb9b183d5d8d6b27b9865afebc402d0266f5fa8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "63c01361a54c079bc079d73ebbb9b183d5d8d6b27b9865afebc402d0266f5fa8", kill_on_drop: false }`
[INFO] [stdout] 63c01361a54c079bc079d73ebbb9b183d5d8d6b27b9865afebc402d0266f5fa8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "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] 4f8b7dc9eddcc7e30f2c096285299111c27c1be3449bebd07febc59b1fadc76e
[INFO] running `Command { std: "docker" "start" "-a" "4f8b7dc9eddcc7e30f2c096285299111c27c1be3449bebd07febc59b1fadc76e", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/fibers-0c11aeaf788e3756)
[INFO] [stdout] running 4 tests
[INFO] [stdout] test collections::test::it_works ... ok
[INFO] [stdout] test time::timer::test::it_works ... ok
[INFO] [stdout] test time::timer::test::timeout_after_works ... ok
[INFO] [stdout] test sync_atomic::test::it_works ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests fibers
[INFO] [stdout] 
[INFO] [stdout] running 17 tests
[INFO] [stdout] test src/lib.rs - (line 30) ... ignored
[INFO] [stdout] test src/lib.rs - (line 113) - compile ... ok
[INFO] [stdout] test src/sync/oneshot.rs - sync::oneshot::MonitorError<E>::map (line 281) ... ok
[INFO] [stdout] test src/sync/oneshot.rs - sync::oneshot::MonitorError<E>::unwrap_or (line 306) ... ok
[INFO] [stdout] test src/fiber/mod.rs - fiber::Spawn::spawn_link (line 73) ... ok
[INFO] [stdout] test src/net/tcp.rs - net::tcp::TcpStream (line 216) ... ok
[INFO] [stdout] test src/sync/oneshot.rs - sync::oneshot::monitor (line 190) ... ok
[INFO] [stdout] test src/fiber/schedule.rs - fiber::schedule::yield_poll (line 260) ... ok
[INFO] [stdout] test src/sync/oneshot.rs - sync::oneshot::monitor (line 155) ... ok
[INFO] [stdout] test src/sync/mpsc.rs - sync::mpsc::channel (line 76) ... ok
[INFO] [stdout] test src/sync/oneshot.rs - sync::oneshot::channel (line 30) ... ok
[INFO] [stdout] test src/net/udp.rs - net::udp::UdpSocket (line 19) ... ok
[INFO] [stdout] test src/net/tcp.rs - net::tcp::TcpListener (line 22) ... ok
[INFO] [stdout] test src/executor/in_place.rs - executor::in_place::InPlaceExecutor (line 18) ... ok
[INFO] [stdout] test src/executor/thread_pool.rs - executor::thread_pool::ThreadPoolExecutor (line 24) ... ok
[INFO] [stdout] test src/sync/mpsc.rs - sync::mpsc (line 14) ... ok
[INFO] [stdout] test src/lib.rs - (line 77) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 16 passed; 0 failed; 1 ignored; 0 measured; 0 filtered out; finished in 5.70s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "4f8b7dc9eddcc7e30f2c096285299111c27c1be3449bebd07febc59b1fadc76e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4f8b7dc9eddcc7e30f2c096285299111c27c1be3449bebd07febc59b1fadc76e", kill_on_drop: false }`
[INFO] [stdout] 4f8b7dc9eddcc7e30f2c096285299111c27c1be3449bebd07febc59b1fadc76e