[INFO] cloning repository https://github.com/linyihai/lyh-reactor-executor-example
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/linyihai/lyh-reactor-executor-example" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flinyihai%2Flyh-reactor-executor-example", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flinyihai%2Flyh-reactor-executor-example'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 50341f98d8d9af7603cbb6e1dd72efad6d843261
[INFO] testing linyihai/lyh-reactor-executor-example against master#62efba8a050c64249dab942951bb28f710208bc8 for pr-90799
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flinyihai%2Flyh-reactor-executor-example" "/workspace/builds/worker-12/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/linyihai/lyh-reactor-executor-example on toolchain 62efba8a050c64249dab942951bb28f710208bc8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/linyihai/lyh-reactor-executor-example
[INFO] finished tweaking git repo https://github.com/linyihai/lyh-reactor-executor-example
[INFO] tweaked toml for git repo https://github.com/linyihai/lyh-reactor-executor-example written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/linyihai/lyh-reactor-executor-example already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 50ba9bfdb0f2d81d6d1c0ac381f589468c867c58d4c0a85267301425ccbe2e34
[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" "50ba9bfdb0f2d81d6d1c0ac381f589468c867c58d4c0a85267301425ccbe2e34", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "50ba9bfdb0f2d81d6d1c0ac381f589468c867c58d4c0a85267301425ccbe2e34", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "50ba9bfdb0f2d81d6d1c0ac381f589468c867c58d4c0a85267301425ccbe2e34", kill_on_drop: false }`
[INFO] [stdout] 50ba9bfdb0f2d81d6d1c0ac381f589468c867c58d4c0a85267301425ccbe2e34
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "+62efba8a050c64249dab942951bb28f710208bc8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 75aeb4e3a43be24c55dbb2f10f66b7622bc032bd7b7c108796f4983b2c9271c9
[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" "75aeb4e3a43be24c55dbb2f10f66b7622bc032bd7b7c108796f4983b2c9271c9", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.107
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling ppv-lite86 v0.2.15
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling lyh-reactor-executor-example v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/poll.rs:11:49
[INFO] [stdout]     |
[INFO] [stdout] 11  |       ($fn: ident ( $($arg: expr),* $(,)* ) ) => {{
[INFO] [stdout]     |  _________________________________________________^
[INFO] [stdout] 12  | |         let res = unsafe { libc::$fn($($arg, )*) };
[INFO] [stdout] 13  | |         if res == -1 {
[INFO] [stdout] 14  | |             Err(std::io::Error::last_os_error())
[INFO] [stdout] ...   |
[INFO] [stdout] 17  | |         }
[INFO] [stdout] 18  | |     }};
[INFO] [stdout]     | |_____^
[INFO] [stdout] ...
[INFO] [stdout] 140 |           syscall!(close(fd));
[INFO] [stdout]     |           ------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in the macro `syscall` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.85s
[INFO] running `Command { std: "docker" "inspect" "75aeb4e3a43be24c55dbb2f10f66b7622bc032bd7b7c108796f4983b2c9271c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "75aeb4e3a43be24c55dbb2f10f66b7622bc032bd7b7c108796f4983b2c9271c9", kill_on_drop: false }`
[INFO] [stdout] 75aeb4e3a43be24c55dbb2f10f66b7622bc032bd7b7c108796f4983b2c9271c9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "+62efba8a050c64249dab942951bb28f710208bc8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d2be4e740171890eac589eb64e9c8736724340c9ac17156a9373da81b092aab1
[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" "d2be4e740171890eac589eb64e9c8736724340c9ac17156a9373da81b092aab1", kill_on_drop: false }`
[INFO] [stderr]    Compiling lyh-reactor-executor-example v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/poll.rs:11:49
[INFO] [stdout]     |
[INFO] [stdout] 11  |       ($fn: ident ( $($arg: expr),* $(,)* ) ) => {{
[INFO] [stdout]     |  _________________________________________________^
[INFO] [stdout] 12  | |         let res = unsafe { libc::$fn($($arg, )*) };
[INFO] [stdout] 13  | |         if res == -1 {
[INFO] [stdout] 14  | |             Err(std::io::Error::last_os_error())
[INFO] [stdout] ...   |
[INFO] [stdout] 17  | |         }
[INFO] [stdout] 18  | |     }};
[INFO] [stdout]     | |_____^
[INFO] [stdout] ...
[INFO] [stdout] 140 |           syscall!(close(fd));
[INFO] [stdout]     |           ------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in the macro `syscall` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.22s
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "d2be4e740171890eac589eb64e9c8736724340c9ac17156a9373da81b092aab1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d2be4e740171890eac589eb64e9c8736724340c9ac17156a9373da81b092aab1", kill_on_drop: false }`
[INFO] [stdout] d2be4e740171890eac589eb64e9c8736724340c9ac17156a9373da81b092aab1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "+62efba8a050c64249dab942951bb28f710208bc8" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] e34b18b8ab2939c16a3181a5607eab3a5a14037be58e35b01653cd7c181c27d2
[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" "e34b18b8ab2939c16a3181a5607eab3a5a14037be58e35b01653cd7c181c27d2", kill_on_drop: false }`
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/poll.rs:11:49
[INFO] [stderr]     |
[INFO] [stderr] 11  |       ($fn: ident ( $($arg: expr),* $(,)* ) ) => {{
[INFO] [stderr]     |  _________________________________________________^
[INFO] [stderr] 12  | |         let res = unsafe { libc::$fn($($arg, )*) };
[INFO] [stderr] 13  | |         if res == -1 {
[INFO] [stderr] 14  | |             Err(std::io::Error::last_os_error())
[INFO] [stderr] ...   |
[INFO] [stderr] 17  | |         }
[INFO] [stderr] 18  | |     }};
[INFO] [stderr]     | |_____^
[INFO] [stderr] ...
[INFO] [stderr] 140 |           syscall!(close(fd));
[INFO] [stderr]     |           ------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this warning originates in the macro `syscall` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: `lyh-reactor-executor-example` (bin "lyh-reactor-executor-example" test) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/lyh_reactor_executor_example-4f2afb1eb18a1d9f)
[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" "e34b18b8ab2939c16a3181a5607eab3a5a14037be58e35b01653cd7c181c27d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e34b18b8ab2939c16a3181a5607eab3a5a14037be58e35b01653cd7c181c27d2", kill_on_drop: false }`
[INFO] [stdout] e34b18b8ab2939c16a3181a5607eab3a5a14037be58e35b01653cd7c181c27d2