[INFO] cloning repository https://github.com/keithyin/mini_tokio
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/keithyin/mini_tokio" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkeithyin%2Fmini_tokio", kill_on_drop: false }`
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[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6350bf58752537a041381a2a4328d4d1a59efabd
[INFO] testing keithyin/mini_tokio against try#8262275854dc0e5381c9d42d56257d94932c5a87 for pr-90799
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkeithyin%2Fmini_tokio" "/workspace/builds/worker-99/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-99/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/keithyin/mini_tokio on toolchain 8262275854dc0e5381c9d42d56257d94932c5a87
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/keithyin/mini_tokio
[INFO] finished tweaking git repo https://github.com/keithyin/mini_tokio
[INFO] tweaked toml for git repo https://github.com/keithyin/mini_tokio written to /workspace/builds/worker-99/source/Cargo.toml
[INFO] crate git repo https://github.com/keithyin/mini_tokio already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] [stdout] 8cdf445cef968a7d8419ef242d3d87274b9cd79be212d110c401f7127e0b616e
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[INFO] running `Command { std: "docker" "inspect" "8cdf445cef968a7d8419ef242d3d87274b9cd79be212d110c401f7127e0b616e", kill_on_drop: false }`
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[INFO] [stdout] 8cdf445cef968a7d8419ef242d3d87274b9cd79be212d110c401f7127e0b616e
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[INFO] [stdout] 0da397fab3873724d22d74854d1acc651363249c757c9a9cb07ae114a55ab918
[INFO] running `Command { std: "docker" "start" "-a" "0da397fab3873724d22d74854d1acc651363249c757c9a9cb07ae114a55ab918", kill_on_drop: false }`
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[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling cfg-if v1.0.0
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[INFO] [stderr]    Compiling libc v0.2.94
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]    Compiling getrandom v0.2.2
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling proc-macro-nested v0.1.7
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[INFO] [stderr]    Compiling futures-task v0.3.15
[INFO] [stderr]    Compiling futures-sink v0.3.15
[INFO] [stderr]    Compiling pin-utils v0.1.0
[INFO] [stderr]    Compiling slab v0.4.3
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling pin-project-lite v0.2.6
[INFO] [stderr]    Compiling futures-io v0.3.15
[INFO] [stderr]    Compiling ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling crossbeam-utils v0.8.4
[INFO] [stderr]    Compiling memoffset v0.6.3
[INFO] [stderr]    Compiling futures-macro v0.3.15
[INFO] [stderr]    Compiling futures-util v0.3.15
[INFO] [stderr]    Compiling rand_core v0.6.2
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.4
[INFO] [stderr]    Compiling crossbeam-queue v0.3.1
[INFO] [stderr]    Compiling crossbeam-channel v0.5.1
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling rand_chacha v0.3.0
[INFO] [stderr]    Compiling crossbeam-deque v0.8.0
[INFO] [stderr]    Compiling rand v0.8.3
[INFO] [stderr]    Compiling crossbeam v0.8.0
[INFO] [stderr]    Compiling futures-executor v0.3.15
[INFO] [stderr]    Compiling futures v0.3.15
[INFO] [stderr]    Compiling mini_tokio v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `rand`
[INFO] [stdout]  --> src/static_bound_demo.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use rand;
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `MiniTokio`
[INFO] [stdout]  --> src/mini_tokio.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 8 | struct MiniTokio {
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `future`
[INFO] [stdout]   --> src/mini_tokio.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 21 |     future: Mutex<Pin<Box<dyn Future<Output = ()> + Send>>>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `run`
[INFO] [stdout]   --> src/mini_tokio.rs:26:8
[INFO] [stdout]    |
[INFO] [stdout] 26 |     fn run(&self) {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/mini_tokio.rs:33:8
[INFO] [stdout]    |
[INFO] [stdout] 33 |     fn new() -> MiniTokio {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `spawn`
[INFO] [stdout]   --> src/mini_tokio.rs:43:8
[INFO] [stdout]    |
[INFO] [stdout] 43 |     fn spawn<F>(&self, future: F)
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `poll`
[INFO] [stdout]   --> src/mini_tokio.rs:63:8
[INFO] [stdout]    |
[INFO] [stdout] 63 |     fn poll(self: Arc<Self>) {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `spawn`
[INFO] [stdout]   --> src/mini_tokio.rs:81:8
[INFO] [stdout]    |
[INFO] [stdout] 81 |     fn spawn<F>(future: F, sender: &channel::Sender<Arc<Task>>)
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `drop_static`
[INFO] [stdout]  --> src/static_bound_demo.rs:3:4
[INFO] [stdout]   |
[INFO] [stdout] 3 | fn drop_static<T: 'static>(t: T) {
[INFO] [stdout]   |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/mini_tokio.rs:53:9
[INFO] [stdout]    |
[INFO] [stdout] 53 |         self.executor.send(self.clone());
[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: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 18.61s
[INFO] running `Command { std: "docker" "inspect" "0da397fab3873724d22d74854d1acc651363249c757c9a9cb07ae114a55ab918", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0da397fab3873724d22d74854d1acc651363249c757c9a9cb07ae114a55ab918", kill_on_drop: false }`
[INFO] [stdout] 0da397fab3873724d22d74854d1acc651363249c757c9a9cb07ae114a55ab918
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-99/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-99/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6dcc0d695201476238b05ae61552594adc2930af3c0db832e75569604bd4a094
[INFO] running `Command { std: "docker" "start" "-a" "6dcc0d695201476238b05ae61552594adc2930af3c0db832e75569604bd4a094", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling mini_tokio v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `rand`
[INFO] [stdout]  --> src/static_bound_demo.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use rand;
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `MiniTokio`
[INFO] [stdout]  --> src/mini_tokio.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 8 | struct MiniTokio {
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `future`
[INFO] [stdout]   --> src/mini_tokio.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 21 |     future: Mutex<Pin<Box<dyn Future<Output = ()> + Send>>>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `run`
[INFO] [stdout]   --> src/mini_tokio.rs:26:8
[INFO] [stdout]    |
[INFO] [stdout] 26 |     fn run(&self) {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/mini_tokio.rs:33:8
[INFO] [stdout]    |
[INFO] [stdout] 33 |     fn new() -> MiniTokio {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `spawn`
[INFO] [stdout]   --> src/mini_tokio.rs:43:8
[INFO] [stdout]    |
[INFO] [stdout] 43 |     fn spawn<F>(&self, future: F)
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `poll`
[INFO] [stdout]   --> src/mini_tokio.rs:63:8
[INFO] [stdout]    |
[INFO] [stdout] 63 |     fn poll(self: Arc<Self>) {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `spawn`
[INFO] [stdout]   --> src/mini_tokio.rs:81:8
[INFO] [stdout]    |
[INFO] [stdout] 81 |     fn spawn<F>(future: F, sender: &channel::Sender<Arc<Task>>)
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/mini_tokio.rs:53:9
[INFO] [stdout]    |
[INFO] [stdout] 53 |         self.executor.send(self.clone());
[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: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.88s
[INFO] running `Command { std: "docker" "inspect" "6dcc0d695201476238b05ae61552594adc2930af3c0db832e75569604bd4a094", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6dcc0d695201476238b05ae61552594adc2930af3c0db832e75569604bd4a094", kill_on_drop: false }`
[INFO] [stdout] 6dcc0d695201476238b05ae61552594adc2930af3c0db832e75569604bd4a094
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-99/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-99/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] d08237da66336b3a68894717996d1b874de66be2f74b65262ec56e723e3c2970
[INFO] running `Command { std: "docker" "start" "-a" "d08237da66336b3a68894717996d1b874de66be2f74b65262ec56e723e3c2970", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: unused import: `rand`
[INFO] [stderr]  --> src/static_bound_demo.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use rand;
[INFO] [stderr]   |     ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `MiniTokio`
[INFO] [stderr]  --> src/mini_tokio.rs:8:8
[INFO] [stderr]   |
[INFO] [stderr] 8 | struct MiniTokio {
[INFO] [stderr]   |        ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `future`
[INFO] [stderr]   --> src/mini_tokio.rs:21:5
[INFO] [stderr]    |
[INFO] [stderr] 21 |     future: Mutex<Pin<Box<dyn Future<Output = ()> + Send>>>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `run`
[INFO] [stderr]   --> src/mini_tokio.rs:26:8
[INFO] [stderr]    |
[INFO] [stderr] 26 |     fn run(&self) {
[INFO] [stderr]    |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]   --> src/mini_tokio.rs:33:8
[INFO] [stderr]    |
[INFO] [stderr] 33 |     fn new() -> MiniTokio {
[INFO] [stderr]    |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `spawn`
[INFO] [stderr]   --> src/mini_tokio.rs:43:8
[INFO] [stderr]    |
[INFO] [stderr] 43 |     fn spawn<F>(&self, future: F)
[INFO] [stderr]    |        ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `poll`
[INFO] [stderr]   --> src/mini_tokio.rs:63:8
[INFO] [stderr]    |
[INFO] [stderr] 63 |     fn poll(self: Arc<Self>) {
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `spawn`
[INFO] [stderr]   --> src/mini_tokio.rs:81:8
[INFO] [stderr]    |
[INFO] [stderr] 81 |     fn spawn<F>(future: F, sender: &channel::Sender<Arc<Task>>)
[INFO] [stderr]    |        ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> src/mini_tokio.rs:53:9
[INFO] [stderr]    |
[INFO] [stderr] 53 |         self.executor.send(self.clone());
[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: `mini_tokio` (bin "mini_tokio" test) generated 9 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 18.39s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/mini_tokio-8e288909496cda9c)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test static_bound_demo::test::test_static_bound ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "d08237da66336b3a68894717996d1b874de66be2f74b65262ec56e723e3c2970", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d08237da66336b3a68894717996d1b874de66be2f74b65262ec56e723e3c2970", kill_on_drop: false }`
[INFO] [stdout] d08237da66336b3a68894717996d1b874de66be2f74b65262ec56e723e3c2970