[INFO] fetching crate fumio-reactor 0.1.0...
[INFO] checking fumio-reactor-0.1.0 against master#936f2600b6c903b04387f74ed5cbce88bb06d243 for pr-91141
[INFO] extracting crate fumio-reactor 0.1.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate fumio-reactor 0.1.0 on toolchain 936f2600b6c903b04387f74ed5cbce88bb06d243
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate fumio-reactor 0.1.0
[INFO] finished tweaking crates.io crate fumio-reactor 0.1.0
[INFO] tweaked toml for crates.io crate fumio-reactor 0.1.0 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 210d743ea2c327216904c70e08b8d7ce3701890202f6fdfe43025a9afb71bbfd
[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" "210d743ea2c327216904c70e08b8d7ce3701890202f6fdfe43025a9afb71bbfd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "210d743ea2c327216904c70e08b8d7ce3701890202f6fdfe43025a9afb71bbfd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "210d743ea2c327216904c70e08b8d7ce3701890202f6fdfe43025a9afb71bbfd", kill_on_drop: false }`
[INFO] [stdout] 210d743ea2c327216904c70e08b8d7ce3701890202f6fdfe43025a9afb71bbfd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d2aa3f6fa1f023a7fa46007eb8ff41c8260a3d2eaa5e8edba94432178abe9f48
[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" "d2aa3f6fa1f023a7fa46007eb8ff41c8260a3d2eaa5e8edba94432178abe9f48", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.108
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking futures-core-preview v0.3.0-alpha.19
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking futures-io-preview v0.3.0-alpha.19
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking futures-util-preview v0.3.0-alpha.19
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking net2 v0.2.37
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking mio v0.6.23
[INFO] [stderr]     Checking futures-executor-preview v0.3.0-alpha.19
[INFO] [stderr]     Checking fumio-utils v0.1.0
[INFO] [stderr]     Checking fumio-reactor v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/reactor/registration.rs:167:80
[INFO] [stdout]     |
[INFO] [stdout] 167 |         let task = ReactorTask::new(handle.clone(), self.read_mask, self.write_mask);;
[INFO] [stdout]     |                                                                                      ^ help: remove this semicolon
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::sync::atomic::spin_loop_hint`: use hint::spin_loop instead
[INFO] [stdout]   --> src/reactor/registration.rs:28:24
[INFO] [stdout]    |
[INFO] [stdout] 28 |             core::sync::atomic::spin_loop_hint();
[INFO] [stdout]    |                                 ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/reactor/registration.rs:167:80
[INFO] [stdout]     |
[INFO] [stdout] 167 |         let task = ReactorTask::new(handle.clone(), self.read_mask, self.write_mask);;
[INFO] [stdout]     |                                                                                      ^ help: remove this semicolon
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::sync::atomic::spin_loop_hint`: use hint::spin_loop instead
[INFO] [stdout]   --> src/reactor/registration.rs:28:24
[INFO] [stdout]    |
[INFO] [stdout] 28 |             core::sync::atomic::spin_loop_hint();
[INFO] [stdout]    |                                 ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::sync::atomic::AtomicU8::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stdout]   --> src/reactor/task.rs:46:31
[INFO] [stdout]    |
[INFO] [stdout] 46 |         let prev = task.inner.state.compare_and_swap(0, STATE_QUEUED, Ordering::Release);
[INFO] [stdout]    |                                     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::sync::atomic::AtomicU8::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stdout]   --> src/reactor/task.rs:46:31
[INFO] [stdout]    |
[INFO] [stdout] 46 |         let prev = task.inner.state.compare_and_swap(0, STATE_QUEUED, Ordering::Release);
[INFO] [stdout]    |                                     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `wake_target`
[INFO] [stdout]   --> src/reactor.rs:33:2
[INFO] [stdout]    |
[INFO] [stdout] 33 |     wake_target: mio::Registration,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `wake_target`
[INFO] [stdout]   --> src/reactor.rs:33:2
[INFO] [stdout]    |
[INFO] [stdout] 33 |     wake_target: mio::Registration,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.75s
[INFO] running `Command { std: "docker" "inspect" "d2aa3f6fa1f023a7fa46007eb8ff41c8260a3d2eaa5e8edba94432178abe9f48", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d2aa3f6fa1f023a7fa46007eb8ff41c8260a3d2eaa5e8edba94432178abe9f48", kill_on_drop: false }`
[INFO] [stdout] d2aa3f6fa1f023a7fa46007eb8ff41c8260a3d2eaa5e8edba94432178abe9f48