[INFO] cloning repository https://github.com/sandreim/epolly
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sandreim/epolly" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsandreim%2Fepolly", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsandreim%2Fepolly'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e20a54f4eeddc64e7897c46fd28bc56f9dea078e
[INFO] testing sandreim/epolly against master#b70888601af92f6cdc0364abab3446e418b91d36 for pr-86479
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsandreim%2Fepolly" "/workspace/builds/worker-19/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-19/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/sandreim/epolly on toolchain b70888601af92f6cdc0364abab3446e418b91d36
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/sandreim/epolly
[INFO] finished tweaking git repo https://github.com/sandreim/epolly
[INFO] tweaked toml for git repo https://github.com/sandreim/epolly written to /workspace/builds/worker-19/source/Cargo.toml
[INFO] crate git repo https://github.com/sandreim/epolly already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "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-19/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/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" "+b70888601af92f6cdc0364abab3446e418b91d36" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dc24d908a2daca9825eee37b728b7c612db5b9ee4180464e02d86bddce50d700
[INFO] running `Command { std: "docker" "start" "-a" "dc24d908a2daca9825eee37b728b7c612db5b9ee4180464e02d86bddce50d700", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dc24d908a2daca9825eee37b728b7c612db5b9ee4180464e02d86bddce50d700", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dc24d908a2daca9825eee37b728b7c612db5b9ee4180464e02d86bddce50d700", kill_on_drop: false }`
[INFO] [stdout] dc24d908a2daca9825eee37b728b7c612db5b9ee4180464e02d86bddce50d700
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/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" "+b70888601af92f6cdc0364abab3446e418b91d36" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9532567b15ed92f7e9283e5ebbfbf5de7ab82183499726583961e1d158432975
[INFO] running `Command { std: "docker" "start" "-a" "9532567b15ed92f7e9283e5ebbfbf5de7ab82183499726583961e1d158432975", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.62
[INFO] [stderr]    Compiling bitflags v1.2.0
[INFO] [stderr]    Compiling libc v0.1.12
[INFO] [stderr]    Compiling epoll v4.1.0
[INFO] [stderr]    Compiling epolly v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `RawFd`
[INFO] [stdout]   --> src/main.rs:18:34
[INFO] [stdout]    |
[INFO] [stdout] 18 | use std::os::unix::io::{AsRawFd, RawFd};
[INFO] [stdout]    |                                  ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `wrapped_em2`
[INFO] [stdout]    --> src/main.rs:193:9
[INFO] [stdout]     |
[INFO] [stdout] 193 |     let wrapped_em2 = em.register(em2);
[INFO] [stdout]     |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_wrapped_em2`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `update`
[INFO] [stdout]    --> src/event_manager.rs:194:12
[INFO] [stdout]     |
[INFO] [stdout] 194 |     pub fn update(
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `run`
[INFO] [stdout]    --> src/event_manager.rs:351:12
[INFO] [stdout]     |
[INFO] [stdout] 351 |     pub fn run(&mut self) -> Result<usize> {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Update`
[INFO] [stdout]   --> src/pollable.rs:79:5
[INFO] [stdout]    |
[INFO] [stdout] 79 |     Update(EventRegistrationData),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `writeable`
[INFO] [stdout]    --> src/pollable.rs:131:12
[INFO] [stdout]     |
[INFO] [stdout] 131 |     pub fn writeable<'a>(&'a mut self) -> &'a mut PollableOpBuilder {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `update`
[INFO] [stdout]    --> src/pollable.rs:149:12
[INFO] [stdout]     |
[INFO] [stdout] 149 |     pub fn update(&self) -> PollableOp {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/main.rs:68:9
[INFO] [stdout]    |
[INFO] [stdout] 68 |         tcp_server.set_nonblocking(true);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/main.rs:139:25
[INFO] [stdout]     |
[INFO] [stdout] 139 |                         client.write(message.as_bytes());
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.35s
[INFO] running `Command { std: "docker" "inspect" "9532567b15ed92f7e9283e5ebbfbf5de7ab82183499726583961e1d158432975", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9532567b15ed92f7e9283e5ebbfbf5de7ab82183499726583961e1d158432975", kill_on_drop: false }`
[INFO] [stdout] 9532567b15ed92f7e9283e5ebbfbf5de7ab82183499726583961e1d158432975
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/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" "+b70888601af92f6cdc0364abab3446e418b91d36" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c40c9d24b0c890c5b3534380def1cc7f61943f9298703f973a77da5a6844e073
[INFO] running `Command { std: "docker" "start" "-a" "c40c9d24b0c890c5b3534380def1cc7f61943f9298703f973a77da5a6844e073", kill_on_drop: false }`
[INFO] [stderr]    Compiling epolly v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `RawFd`
[INFO] [stdout]   --> src/main.rs:18:34
[INFO] [stdout]    |
[INFO] [stdout] 18 | use std::os::unix::io::{AsRawFd, RawFd};
[INFO] [stdout]    |                                  ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `wrapped_em2`
[INFO] [stdout]    --> src/main.rs:193:9
[INFO] [stdout]     |
[INFO] [stdout] 193 |     let wrapped_em2 = em.register(em2);
[INFO] [stdout]     |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_wrapped_em2`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `update`
[INFO] [stdout]    --> src/event_manager.rs:194:12
[INFO] [stdout]     |
[INFO] [stdout] 194 |     pub fn update(
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `run`
[INFO] [stdout]    --> src/event_manager.rs:351:12
[INFO] [stdout]     |
[INFO] [stdout] 351 |     pub fn run(&mut self) -> Result<usize> {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Update`
[INFO] [stdout]   --> src/pollable.rs:79:5
[INFO] [stdout]    |
[INFO] [stdout] 79 |     Update(EventRegistrationData),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `writeable`
[INFO] [stdout]    --> src/pollable.rs:131:12
[INFO] [stdout]     |
[INFO] [stdout] 131 |     pub fn writeable<'a>(&'a mut self) -> &'a mut PollableOpBuilder {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `update`
[INFO] [stdout]    --> src/pollable.rs:149:12
[INFO] [stdout]     |
[INFO] [stdout] 149 |     pub fn update(&self) -> PollableOp {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/main.rs:68:9
[INFO] [stdout]    |
[INFO] [stdout] 68 |         tcp_server.set_nonblocking(true);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/main.rs:139:25
[INFO] [stdout]     |
[INFO] [stdout] 139 |                         client.write(message.as_bytes());
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.04s
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "c40c9d24b0c890c5b3534380def1cc7f61943f9298703f973a77da5a6844e073", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c40c9d24b0c890c5b3534380def1cc7f61943f9298703f973a77da5a6844e073", kill_on_drop: false }`
[INFO] [stdout] c40c9d24b0c890c5b3534380def1cc7f61943f9298703f973a77da5a6844e073
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/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" "+b70888601af92f6cdc0364abab3446e418b91d36" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 060a7baf6a0b9dc212fd16946ea7715522fe36d72672912613266d5384e5db17
[INFO] running `Command { std: "docker" "start" "-a" "060a7baf6a0b9dc212fd16946ea7715522fe36d72672912613266d5384e5db17", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: unused import: `RawFd`
[INFO] [stderr]   --> src/main.rs:18:34
[INFO] [stderr]    |
[INFO] [stderr] 18 | use std::os::unix::io::{AsRawFd, RawFd};
[INFO] [stderr]    |                                  ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `wrapped_em2`
[INFO] [stderr]    --> src/main.rs:193:9
[INFO] [stderr]     |
[INFO] [stderr] 193 |     let wrapped_em2 = em.register(em2);
[INFO] [stderr]     |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_wrapped_em2`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `update`
[INFO] [stderr]    --> src/event_manager.rs:194:12
[INFO] [stderr]     |
[INFO] [stderr] 194 |     pub fn update(
[INFO] [stderr]     |            ^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `run`
[INFO] [stderr]    --> src/event_manager.rs:351:12
[INFO] [stderr]     |
[INFO] [stderr] 351 |     pub fn run(&mut self) -> Result<usize> {
[INFO] [stderr]     |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Update`
[INFO] [stderr]   --> src/pollable.rs:79:5
[INFO] [stderr]    |
[INFO] [stderr] 79 |     Update(EventRegistrationData),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `writeable`
[INFO] [stderr]    --> src/pollable.rs:131:12
[INFO] [stderr]     |
[INFO] [stderr] 131 |     pub fn writeable<'a>(&'a mut self) -> &'a mut PollableOpBuilder {
[INFO] [stderr]     |            ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `update`
[INFO] [stderr]    --> src/pollable.rs:149:12
[INFO] [stderr]     |
[INFO] [stderr] 149 |     pub fn update(&self) -> PollableOp {
[INFO] [stderr]     |            ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:68:9
[INFO] [stderr]    |
[INFO] [stderr] 68 |         tcp_server.set_nonblocking(true);
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[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] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/main.rs:139:25
[INFO] [stderr]     |
[INFO] [stderr] 139 |                         client.write(message.as_bytes());
[INFO] [stderr]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: `epolly` (bin "epolly" test) generated 9 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.48s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/epolly-c02517c3301c2d34)
[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" "060a7baf6a0b9dc212fd16946ea7715522fe36d72672912613266d5384e5db17", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "060a7baf6a0b9dc212fd16946ea7715522fe36d72672912613266d5384e5db17", kill_on_drop: false }`
[INFO] [stdout] 060a7baf6a0b9dc212fd16946ea7715522fe36d72672912613266d5384e5db17