[INFO] cloning repository https://github.com/hunxjunedo/rust-async-abstractions
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/hunxjunedo/rust-async-abstractions" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhunxjunedo%2Frust-async-abstractions", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhunxjunedo%2Frust-async-abstractions'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 89208c1163fee9e7907566676e83bf9de0bf2880
[INFO] testing hunxjunedo/rust-async-abstractions against 1.99.0-beta.1+cargoflags=--release for beta-release-1.99-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhunxjunedo%2Frust-async-abstractions" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/hunxjunedo/rust-async-abstractions
[INFO] finished tweaking git repo https://github.com/hunxjunedo/rust-async-abstractions
[INFO] tweaked toml for git repo https://github.com/hunxjunedo/rust-async-abstractions written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/hunxjunedo/rust-async-abstractions on toolchain 1.99.0-beta.1
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/hunxjunedo/rust-async-abstractions already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:8683fc1fc2eb5c9ac98e0d076ab094b2ffac7f99da555d2b6a2e27f346de2ec7" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 9e76597a511c5a322d98a5f92b64dcb3cc12c910f6eb25570f65d37fb2bb2845
[INFO] running `Command { std: "docker" "start" "9e76597a511c5a322d98a5f92b64dcb3cc12c910f6eb25570f65d37fb2bb2845", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9e76597a511c5a322d98a5f92b64dcb3cc12c910f6eb25570f65d37fb2bb2845", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "9e76597a511c5a322d98a5f92b64dcb3cc12c910f6eb25570f65d37fb2bb2845" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9e76597a511c5a322d98a5f92b64dcb3cc12c910f6eb25570f65d37fb2bb2845", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "9e76597a511c5a322d98a5f92b64dcb3cc12c910f6eb25570f65d37fb2bb2845" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.1" "build" "--frozen" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.189
[INFO] [stderr]    Compiling log v0.4.33
[INFO] [stderr]    Compiling mio v1.2.2
[INFO] [stderr]    Compiling rust-async-abstractions v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: type `coroutine` should have an upper camel case name
[INFO] [stdout]   --> src/coroutine.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub struct coroutine {
[INFO] [stdout]    |            ^^^^^^^^^ help: convert the identifier to upper camel case (notice the capitalization): `Coroutine`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_camel_case_types)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::future`
[INFO] [stdout]  --> src/runtime.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::future;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `coroutine` is never constructed
[INFO] [stdout]   --> src/coroutine.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub struct coroutine {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `State` is never used
[INFO] [stdout]   --> src/coroutine.rs:17:10
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub enum State {
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `StepWait` is never constructed
[INFO] [stdout]   --> src/coroutine.rs:23:12
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub struct StepWait {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/coroutine.rs:29:12
[INFO] [stdout]    |
[INFO] [stdout] 28 | impl coroutine {
[INFO] [stdout]    | -------------- associated function in this implementation
[INFO] [stdout] 29 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 2.56s
[INFO] running `Command { std: "docker" "inspect" "9e76597a511c5a322d98a5f92b64dcb3cc12c910f6eb25570f65d37fb2bb2845", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "9e76597a511c5a322d98a5f92b64dcb3cc12c910f6eb25570f65d37fb2bb2845" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.1" "test" "--frozen" "--no-run" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-async-abstractions v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: type `coroutine` should have an upper camel case name
[INFO] [stdout]   --> src/coroutine.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub struct coroutine {
[INFO] [stdout]    |            ^^^^^^^^^ help: convert the identifier to upper camel case (notice the capitalization): `Coroutine`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_camel_case_types)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::future`
[INFO] [stdout]  --> src/runtime.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::future;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `coroutine` is never constructed
[INFO] [stdout]   --> src/coroutine.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub struct coroutine {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `State` is never used
[INFO] [stdout]   --> src/coroutine.rs:17:10
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub enum State {
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `StepWait` is never constructed
[INFO] [stdout]   --> src/coroutine.rs:23:12
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub struct StepWait {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/coroutine.rs:29:12
[INFO] [stdout]    |
[INFO] [stdout] 28 | impl coroutine {
[INFO] [stdout]    | -------------- associated function in this implementation
[INFO] [stdout] 29 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 0.41s
[INFO] running `Command { std: "docker" "inspect" "9e76597a511c5a322d98a5f92b64dcb3cc12c910f6eb25570f65d37fb2bb2845", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "9e76597a511c5a322d98a5f92b64dcb3cc12c910f6eb25570f65d37fb2bb2845" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.1" "test" "--frozen" "--release", kill_on_drop: false }`
[INFO] [stderr] warning: type `coroutine` should have an upper camel case name
[INFO] [stderr]   --> src/coroutine.rs:10:12
[INFO] [stderr]    |
[INFO] [stderr] 10 | pub struct coroutine {
[INFO] [stderr]    |            ^^^^^^^^^ help: convert the identifier to upper camel case (notice the capitalization): `Coroutine`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_camel_case_types)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::future`
[INFO] [stderr]  --> src/runtime.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::future;
[INFO] [stderr]   |     ^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct `coroutine` is never constructed
[INFO] [stderr]   --> src/coroutine.rs:10:12
[INFO] [stderr]    |
[INFO] [stderr] 10 | pub struct coroutine {
[INFO] [stderr]    |            ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: enum `State` is never used
[INFO] [stderr]   --> src/coroutine.rs:17:10
[INFO] [stderr]    |
[INFO] [stderr] 17 | pub enum State {
[INFO] [stderr]    |          ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `StepWait` is never constructed
[INFO] [stderr]   --> src/coroutine.rs:23:12
[INFO] [stderr]    |
[INFO] [stderr] 23 | pub struct StepWait {
[INFO] [stderr]    |            ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function `new` is never used
[INFO] [stderr]   --> src/coroutine.rs:29:12
[INFO] [stderr]    |
[INFO] [stderr] 28 | impl coroutine {
[INFO] [stderr]    | -------------- associated function in this implementation
[INFO] [stderr] 29 |     pub fn new() -> Self {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `rust-async-abstractions` (bin "rust-async-abstractions" test) generated 6 warnings (run `cargo fix --bin "rust-async-abstractions" -p rust-async-abstractions --tests` to apply 1 suggestion)
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/release/deps/rust_async_abstractions-e518b32affb333ac)
[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" "9e76597a511c5a322d98a5f92b64dcb3cc12c910f6eb25570f65d37fb2bb2845", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9e76597a511c5a322d98a5f92b64dcb3cc12c910f6eb25570f65d37fb2bb2845", kill_on_drop: false }`
[INFO] [stdout] 9e76597a511c5a322d98a5f92b64dcb3cc12c910f6eb25570f65d37fb2bb2845