[INFO] cloning repository https://github.com/kavanmevada/futures [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kavanmevada/futures" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkavanmevada%2Ffutures", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkavanmevada%2Ffutures'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] ac043444ef4b41b4a2896ad27170b6f058aa9cb7 [INFO] checking kavanmevada/futures against try#8de4b308b608cded0ebccf658a0fc719bce87d4e for pr-89056 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkavanmevada%2Ffutures" "/workspace/builds/worker-115/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-115/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/kavanmevada/futures on toolchain 8de4b308b608cded0ebccf658a0fc719bce87d4e [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/kavanmevada/futures [INFO] finished tweaking git repo https://github.com/kavanmevada/futures [INFO] tweaked toml for git repo https://github.com/kavanmevada/futures written to /workspace/builds/worker-115/source/Cargo.toml [INFO] crate git repo https://github.com/kavanmevada/futures already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "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] [stderr] Downloading crates ... [INFO] [stderr] Downloaded signal-hook v0.3.10 [INFO] [stderr] Downloaded flume v0.10.9 [INFO] [stderr] Downloaded nanorand v0.6.1 [INFO] [stderr] Downloaded nix v0.22.1 [INFO] [stderr] Downloaded timerfd v1.2.0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-115/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-115/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" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 76d175a5dc2bc63ed508e75cabd38eb1d5cd98f7eafb54c2c3f0d91acf81bb9c [INFO] running `Command { std: "docker" "start" "-a" "76d175a5dc2bc63ed508e75cabd38eb1d5cd98f7eafb54c2c3f0d91acf81bb9c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "76d175a5dc2bc63ed508e75cabd38eb1d5cd98f7eafb54c2c3f0d91acf81bb9c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "76d175a5dc2bc63ed508e75cabd38eb1d5cd98f7eafb54c2c3f0d91acf81bb9c", kill_on_drop: false }` [INFO] [stdout] 76d175a5dc2bc63ed508e75cabd38eb1d5cd98f7eafb54c2c3f0d91acf81bb9c [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-115/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-115/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 9f11bcc6fb6a249f4b3394bee33be038cec0d9568baf7ba984c0146c4e76d55a [INFO] running `Command { std: "docker" "start" "-a" "9f11bcc6fb6a249f4b3394bee33be038cec0d9568baf7ba984c0146c4e76d55a", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.101 [INFO] [stderr] Compiling proc-macro2 v1.0.28 [INFO] [stderr] Compiling autocfg v1.0.1 [INFO] [stderr] Compiling unicode-xid v0.2.2 [INFO] [stderr] Compiling syn v1.0.75 [INFO] [stderr] Compiling futures-core v0.3.16 [INFO] [stderr] Checking cfg-if v1.0.0 [INFO] [stderr] Compiling memchr v2.4.1 [INFO] [stderr] Compiling log v0.4.14 [INFO] [stderr] Checking slab v0.4.4 [INFO] [stderr] Compiling proc-macro-hack v0.5.19 [INFO] [stderr] Checking futures-sink v0.3.16 [INFO] [stderr] Checking pin-project-lite v0.2.7 [INFO] [stderr] Compiling futures-task v0.3.17 [INFO] [stderr] Checking futures-io v0.3.17 [INFO] [stderr] Compiling futures-channel v0.3.16 [INFO] [stderr] Checking cfg-if v0.1.10 [INFO] [stderr] Checking pin-utils v0.1.0 [INFO] [stderr] Compiling bitflags v1.2.1 [INFO] [stderr] Checking scopeguard v1.1.0 [INFO] [stderr] Checking fastrand v1.5.0 [INFO] [stderr] Checking waker-fn v1.1.0 [INFO] [stderr] Checking cache-padded v1.1.1 [INFO] [stderr] Compiling signal-hook v0.3.10 [INFO] [stderr] Checking parking v2.0.0 [INFO] [stderr] Checking once_cell v1.8.0 [INFO] [stderr] Checking pin-project-lite v0.1.12 [INFO] [stderr] Checking fnv v1.0.7 [INFO] [stderr] Checking lazy_static v1.4.0 [INFO] [stderr] Checking bytes v0.5.6 [INFO] [stderr] Compiling proc-macro-nested v0.1.7 [INFO] [stderr] Checking lock_api v0.4.4 [INFO] [stderr] Checking concurrent-queue v1.2.2 [INFO] [stderr] Compiling futures-macro v0.3.16 [INFO] [stderr] Compiling futures-util v0.3.16 [INFO] [stderr] Compiling memoffset v0.6.4 [INFO] [stderr] Checking spin v0.9.2 [INFO] [stderr] Compiling quote v1.0.9 [INFO] [stderr] Checking futures-lite v1.12.0 [INFO] [stderr] Checking net2 v0.2.37 [INFO] [stderr] Checking iovec v0.1.4 [INFO] [stderr] Checking signal-hook-registry v1.4.0 [INFO] [stderr] Checking getrandom v0.2.3 [INFO] [stderr] Checking num_cpus v1.13.0 [INFO] [stderr] Checking polling v2.1.0 [INFO] [stderr] Checking socket2 v0.4.1 [INFO] [stderr] Checking nix v0.22.1 [INFO] [stderr] Checking timerfd v1.2.0 [INFO] [stderr] Checking nanorand v0.6.1 [INFO] [stderr] Checking mio v0.6.23 [INFO] [stderr] Checking mio-uds v0.6.8 [INFO] [stderr] Checking async-io v1.6.0 [INFO] [stderr] Compiling pin-project-internal v1.0.8 [INFO] [stderr] Compiling tokio-macros v0.2.6 [INFO] [stderr] Checking tokio v0.2.25 [INFO] [stderr] Checking pin-project v1.0.8 [INFO] [stderr] Checking flume v0.10.9 [INFO] [stderr] Checking futures-executor v0.3.16 [INFO] [stderr] Checking futures v0.3.16 [INFO] [stderr] Checking channel v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused imports: `thread`, `time::Duration` [INFO] [stdout] --> src/lib.rs:4:11 [INFO] [stdout] | [INFO] [stdout] 4 | use std::{thread, time::Duration}; [INFO] [stdout] | ^^^^^^ ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `time::Duration` [INFO] [stdout] --> src/lib.rs:4:19 [INFO] [stdout] | [INFO] [stdout] 4 | use std::{thread, time::Duration}; [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `park` [INFO] [stdout] --> src/lib.rs:19:12 [INFO] [stdout] | [INFO] [stdout] 19 | fn park(&self) { [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: `unpark` [INFO] [stdout] --> src/lib.rs:22:12 [INFO] [stdout] | [INFO] [stdout] 22 | fn unpark(&self) { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `queue` [INFO] [stdout] --> src/lib.rs:29:9 [INFO] [stdout] | [INFO] [stdout] 29 | queue: VecDeque, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `waiting` [INFO] [stdout] --> src/lib.rs:30:9 [INFO] [stdout] | [INFO] [stdout] 30 | waiting: VecDeque>>, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `recv` [INFO] [stdout] --> src/lib.rs:37:16 [INFO] [stdout] | [INFO] [stdout] 37 | pub fn recv(&self) -> T { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `send` [INFO] [stdout] --> src/lib.rs:52:16 [INFO] [stdout] | [INFO] [stdout] 52 | pub fn send(&self, msg: T) { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `unbounded` [INFO] [stdout] --> src/lib.rs:70:12 [INFO] [stdout] | [INFO] [stdout] 70 | pub fn unbounded() -> Arc> { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 8 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/lib.rs:112:13 [INFO] [stdout] | [INFO] [stdout] 112 | shared_.send("Message 1 from T1 thread!"); [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 `Result` that must be used [INFO] [stdout] --> src/lib.rs:113:13 [INFO] [stdout] | [INFO] [stdout] 113 | shared_.send("Message 2 from T1 thread!"); [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: unused `Result` that must be used [INFO] [stdout] --> src/lib.rs:118:13 [INFO] [stdout] | [INFO] [stdout] 118 | shared_.send("Message 1 from T2 thread!"); [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: unused `Result` that must be used [INFO] [stdout] --> src/lib.rs:119:13 [INFO] [stdout] | [INFO] [stdout] 119 | shared_.send("Message 2 from T2 thread!"); [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: unused variable: `res` [INFO] [stdout] --> src/main.rs:11:9 [INFO] [stdout] | [INFO] [stdout] 11 | let res = asyncfd.read_with(|io| { [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_res` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `cx` [INFO] [stdout] --> src/main.rs:100:45 [INFO] [stdout] | [INFO] [stdout] 100 | fn poll(self: std::pin::Pin<&mut Self>, cx: &mut std::task::Context<'_>) -> std::task::Poll { [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_cx` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `pending` [INFO] [stdout] --> src/main.rs:49:28 [INFO] [stdout] | [INFO] [stdout] 49 | while let Some(pending) = waiting.pop_front().take() { [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_pending` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `res` [INFO] [stdout] --> src/main.rs:11:9 [INFO] [stdout] | [INFO] [stdout] 11 | let res = asyncfd.read_with(|io| { [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_res` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `cx` [INFO] [stdout] --> src/main.rs:100:45 [INFO] [stdout] | [INFO] [stdout] 100 | fn poll(self: std::pin::Pin<&mut Self>, cx: &mut std::task::Context<'_>) -> std::task::Poll { [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_cx` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `pending` [INFO] [stdout] --> src/main.rs:49:28 [INFO] [stdout] | [INFO] [stdout] 49 | while let Some(pending) = waiting.pop_front().take() { [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_pending` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:62:17 [INFO] [stdout] | [INFO] [stdout] 62 | let mut channel = self.0.lock().unwrap(); [INFO] [stdout] | ----^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: type alias is never used: `BoxedFuture` [INFO] [stdout] --> src/main.rs:30:5 [INFO] [stdout] | [INFO] [stdout] 30 | pub type BoxedFuture<'a, T> = Pin + Sync + Send + 'a>>; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:62:17 [INFO] [stdout] | [INFO] [stdout] 62 | let mut channel = self.0.lock().unwrap(); [INFO] [stdout] | ----^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: type alias is never used: `BoxedFuture` [INFO] [stdout] --> src/main.rs:30:5 [INFO] [stdout] | [INFO] [stdout] 30 | pub type BoxedFuture<'a, T> = Pin + Sync + Send + 'a>>; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 47.18s [INFO] running `Command { std: "docker" "inspect" "9f11bcc6fb6a249f4b3394bee33be038cec0d9568baf7ba984c0146c4e76d55a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9f11bcc6fb6a249f4b3394bee33be038cec0d9568baf7ba984c0146c4e76d55a", kill_on_drop: false }` [INFO] [stdout] 9f11bcc6fb6a249f4b3394bee33be038cec0d9568baf7ba984c0146c4e76d55a