[INFO] fetching crate tokio-async-attributes 1.0.0...
[INFO] testing tokio-async-attributes-1.0.0 against master#5d5ff84130da0d74c6ece368dbe821d8f83fa526 for pr-79296
[INFO] extracting crate tokio-async-attributes 1.0.0 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate tokio-async-attributes 1.0.0 on toolchain 5d5ff84130da0d74c6ece368dbe821d8f83fa526
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate tokio-async-attributes 1.0.0
[INFO] finished tweaking crates.io crate tokio-async-attributes 1.0.0
[INFO] tweaked toml for crates.io crate tokio-async-attributes 1.0.0 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "fetch" "--locked" "--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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 2ee14219d211f0e40d2cfd8da664f80df65624b1ab1436c98e3076fcec1290fb
[INFO] running `Command { std: "docker" "start" "-a" "2ee14219d211f0e40d2cfd8da664f80df65624b1ab1436c98e3076fcec1290fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2ee14219d211f0e40d2cfd8da664f80df65624b1ab1436c98e3076fcec1290fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2ee14219d211f0e40d2cfd8da664f80df65624b1ab1436c98e3076fcec1290fb", kill_on_drop: false }`
[INFO] [stdout] 2ee14219d211f0e40d2cfd8da664f80df65624b1ab1436c98e3076fcec1290fb
[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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4a0136092a4631d6dd5ec6da90896644a3c2a356bdd8b21b0b0b2c1138605b3c
[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" "4a0136092a4631d6dd5ec6da90896644a3c2a356bdd8b21b0b0b2c1138605b3c", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.52
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling tokio-async-attributes v1.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: lint `intra_doc_link_resolution_failure` has been renamed to `broken_intra_doc_links`
[INFO] [stdout]  --> src/lib.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 | #![deny(intra_doc_link_resolution_failure)]
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use the new name: `broken_intra_doc_links`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(renamed_and_removed_lints)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 16.05s
[INFO] running `Command { std: "docker" "inspect" "4a0136092a4631d6dd5ec6da90896644a3c2a356bdd8b21b0b0b2c1138605b3c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4a0136092a4631d6dd5ec6da90896644a3c2a356bdd8b21b0b0b2c1138605b3c", kill_on_drop: false }`
[INFO] [stdout] 4a0136092a4631d6dd5ec6da90896644a3c2a356bdd8b21b0b0b2c1138605b3c
[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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8da80848c9425e4355d8cd099bbf8adca0aadc27ad687981dfc31f07a26e82f5
[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" "8da80848c9425e4355d8cd099bbf8adca0aadc27ad687981dfc31f07a26e82f5", kill_on_drop: false }`
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling pin-project-lite v0.1.11
[INFO] [stderr]    Compiling bytes v0.5.6
[INFO] [stderr]    Compiling futures-timer v2.0.2
[INFO] [stderr]    Compiling futures-core v0.3.8
[INFO] [stderr]    Compiling libc v0.2.80
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling tokio-async-attributes v1.0.0
[INFO] [stdout] warning: lint `intra_doc_link_resolution_failure` has been renamed to `broken_intra_doc_links`
[INFO] [stdout]  --> src/lib.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 | #![deny(intra_doc_link_resolution_failure)]
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use the new name: `broken_intra_doc_links`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(renamed_and_removed_lints)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling net2 v0.2.36
[INFO] [stderr]    Compiling iovec v0.1.4
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling tokio v0.2.23
[INFO] [stderr]    Compiling mio v0.6.22
[INFO] [stderr]    Compiling mio-uds v0.6.8
[INFO] [stderr]    Compiling tokio-async-std v1.5.3
[INFO] [stderr]    Compiling tokio-async-attributes v1.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: lint `intra_doc_link_resolution_failure` has been renamed to `broken_intra_doc_links`
[INFO] [stdout]  --> src/lib.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 | #![deny(intra_doc_link_resolution_failure)]
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use the new name: `broken_intra_doc_links`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(renamed_and_removed_lints)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 20.39s
[INFO] running `Command { std: "docker" "inspect" "8da80848c9425e4355d8cd099bbf8adca0aadc27ad687981dfc31f07a26e82f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8da80848c9425e4355d8cd099bbf8adca0aadc27ad687981dfc31f07a26e82f5", kill_on_drop: false }`
[INFO] [stdout] 8da80848c9425e4355d8cd099bbf8adca0aadc27ad687981dfc31f07a26e82f5
[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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 2f77b6ea88f699914d1d8eb5fa939f3ded8c2cc66f56ad6699b7cad711f7a7ad
[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" "2f77b6ea88f699914d1d8eb5fa939f3ded8c2cc66f56ad6699b7cad711f7a7ad", kill_on_drop: false }`
[INFO] [stderr] warning: lint `intra_doc_link_resolution_failure` has been renamed to `broken_intra_doc_links`
[INFO] [stderr]  --> src/lib.rs:9:9
[INFO] [stderr]   |
[INFO] [stderr] 9 | #![deny(intra_doc_link_resolution_failure)]
[INFO] [stderr]   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use the new name: `broken_intra_doc_links`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(renamed_and_removed_lints)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: lint `intra_doc_link_resolution_failure` has been renamed to `broken_intra_doc_links`
[INFO] [stderr]  --> src/lib.rs:9:9
[INFO] [stderr]   |
[INFO] [stderr] 9 | #![deny(intra_doc_link_resolution_failure)]
[INFO] [stderr]   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use the new name: `broken_intra_doc_links`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(renamed_and_removed_lints)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/tokio_async_attributes-b1d9fac969d34684
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests tokio-async-attributes
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 10 tests
[INFO] [stdout] test src/lib.rs - test_threaded (line 146) ... FAILED
[INFO] [stdout] test src/lib.rs - test (line 177) ... FAILED
[INFO] [stdout] test src/lib.rs - test_threaded (line 137) ... FAILED
[INFO] [stdout] test src/lib.rs - test_basic (line 196) ... FAILED
[INFO] [stdout] test src/lib.rs - test (line 168) ... FAILED
[INFO] [stdout] test src/lib.rs - main_basic (line 114) ... FAILED
[INFO] [stdout] test src/lib.rs - main_threaded (line 43) ... FAILED
[INFO] [stdout] test src/lib.rs - main (line 79) ... FAILED
[INFO] [stdout] test src/lib.rs - main_threaded (line 52) ... FAILED
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] [stdout] test src/lib.rs - main (line 88) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - test_threaded (line 146) stdout ----
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `tokio`
[INFO] [stdout]  --> src/lib.rs:147:3
[INFO] [stdout]   |
[INFO] [stdout] 4 | #[tokio::test]
[INFO] [stdout]   |   ^^^^^ use of undeclared crate or module `tokio`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - test (line 177) stdout ----
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `tokio`
[INFO] [stdout]  --> src/lib.rs:178:3
[INFO] [stdout]   |
[INFO] [stdout] 4 | #[tokio::test]
[INFO] [stdout]   |   ^^^^^ use of undeclared crate or module `tokio`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - test_threaded (line 137) stdout ----
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `tokio`
[INFO] [stdout]  --> src/lib.rs:138:3
[INFO] [stdout]   |
[INFO] [stdout] 4 | #[tokio::test(core_threads = 1)]
[INFO] [stdout]   |   ^^^^^ use of undeclared crate or module `tokio`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - test_basic (line 196) stdout ----
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `tokio`
[INFO] [stdout]  --> src/lib.rs:197:3
[INFO] [stdout]   |
[INFO] [stdout] 4 | #[tokio::test]
[INFO] [stdout]   |   ^^^^^ use of undeclared crate or module `tokio`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - test (line 168) stdout ----
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `tokio`
[INFO] [stdout]  --> src/lib.rs:169:3
[INFO] [stdout]   |
[INFO] [stdout] 4 | #[tokio::test(threaded_scheduler)]
[INFO] [stdout]   |   ^^^^^ use of undeclared crate or module `tokio`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - main_basic (line 114) stdout ----
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `tokio`
[INFO] [stdout]  --> src/lib.rs:115:3
[INFO] [stdout]   |
[INFO] [stdout] 3 | #[tokio::main]
[INFO] [stdout]   |   ^^^^^ use of undeclared crate or module `tokio`
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: `main` has invalid return type `impl Future`
[INFO] [stdout]  --> src/lib.rs:116:17
[INFO] [stdout]   |
[INFO] [stdout] 4 | async fn main() {
[INFO] [stdout]   |                 ^ `main` can only return types that implement `Termination`
[INFO] [stdout]   |
[INFO] [stdout]   = help: consider using `()`, or a `Result`
[INFO] [stdout] 
[INFO] [stdout] error[E0752]: `main` function is not allowed to be `async`
[INFO] [stdout]  --> src/lib.rs:116:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | async fn main() {
[INFO] [stdout]   | ^^^^^^^^^^^^^^^ `main` function is not allowed to be `async`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0277, E0433, E0752.
[INFO] [stdout] For more information about an error, try `rustc --explain E0277`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - main_threaded (line 43) stdout ----
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `tokio`
[INFO] [stdout]  --> src/lib.rs:44:3
[INFO] [stdout]   |
[INFO] [stdout] 3 | #[tokio::main]
[INFO] [stdout]   |   ^^^^^ use of undeclared crate or module `tokio`
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: `main` has invalid return type `impl Future`
[INFO] [stdout]  --> src/lib.rs:45:17
[INFO] [stdout]   |
[INFO] [stdout] 4 | async fn main() {
[INFO] [stdout]   |                 ^ `main` can only return types that implement `Termination`
[INFO] [stdout]   |
[INFO] [stdout]   = help: consider using `()`, or a `Result`
[INFO] [stdout] 
[INFO] [stdout] error[E0752]: `main` function is not allowed to be `async`
[INFO] [stdout]  --> src/lib.rs:45:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | async fn main() {
[INFO] [stdout]   | ^^^^^^^^^^^^^^^ `main` function is not allowed to be `async`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0277, E0433, E0752.
[INFO] [stdout] For more information about an error, try `rustc --explain E0277`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - main (line 79) stdout ----
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `tokio`
[INFO] [stdout]  --> src/lib.rs:80:3
[INFO] [stdout]   |
[INFO] [stdout] 3 | #[tokio::main]
[INFO] [stdout]   |   ^^^^^ use of undeclared crate or module `tokio`
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: `main` has invalid return type `impl Future`
[INFO] [stdout]  --> src/lib.rs:81:17
[INFO] [stdout]   |
[INFO] [stdout] 4 | async fn main() {
[INFO] [stdout]   |                 ^ `main` can only return types that implement `Termination`
[INFO] [stdout]   |
[INFO] [stdout]   = help: consider using `()`, or a `Result`
[INFO] [stdout] 
[INFO] [stdout] error[E0752]: `main` function is not allowed to be `async`
[INFO] [stdout]  --> src/lib.rs:81:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | async fn main() {
[INFO] [stdout]   | ^^^^^^^^^^^^^^^ `main` function is not allowed to be `async`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0277, E0433, E0752.
[INFO] [stdout] For more information about an error, try `rustc --explain E0277`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - main_threaded (line 52) stdout ----
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `tokio`
[INFO] [stdout]  --> src/lib.rs:53:3
[INFO] [stdout]   |
[INFO] [stdout] 3 | #[tokio::main(core_threads = 1)]
[INFO] [stdout]   |   ^^^^^ use of undeclared crate or module `tokio`
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: `main` has invalid return type `impl Future`
[INFO] [stdout]  --> src/lib.rs:54:17
[INFO] [stdout]   |
[INFO] [stdout] 4 | async fn main() {
[INFO] [stdout]   |                 ^ `main` can only return types that implement `Termination`
[INFO] [stdout]   |
[INFO] [stdout]   = help: consider using `()`, or a `Result`
[INFO] [stdout] 
[INFO] [stdout] error[E0752]: `main` function is not allowed to be `async`
[INFO] [stdout]  --> src/lib.rs:54:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | async fn main() {
[INFO] [stdout]   | ^^^^^^^^^^^^^^^ `main` function is not allowed to be `async`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0277, E0433, E0752.
[INFO] [stdout] For more information about an error, try `rustc --explain E0277`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - main (line 88) stdout ----
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `tokio`
[INFO] [stdout]  --> src/lib.rs:89:3
[INFO] [stdout]   |
[INFO] [stdout] 3 | #[tokio::main(basic_scheduler)]
[INFO] [stdout]   |   ^^^^^ use of undeclared crate or module `tokio`
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: `main` has invalid return type `impl Future`
[INFO] [stdout]  --> src/lib.rs:90:17
[INFO] [stdout]   |
[INFO] [stdout] 4 | async fn main() {
[INFO] [stdout]   |                 ^ `main` can only return types that implement `Termination`
[INFO] [stdout]   |
[INFO] [stdout]   = help: consider using `()`, or a `Result`
[INFO] [stdout] 
[INFO] [stdout] error[E0752]: `main` function is not allowed to be `async`
[INFO] [stdout]  --> src/lib.rs:90:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | async fn main() {
[INFO] [stdout]   | ^^^^^^^^^^^^^^^ `main` function is not allowed to be `async`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0277, E0433, E0752.
[INFO] [stdout] For more information about an error, try `rustc --explain E0277`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - main (line 79)
[INFO] [stdout]     src/lib.rs - main (line 88)
[INFO] [stdout]     src/lib.rs - main_basic (line 114)
[INFO] [stdout]     src/lib.rs - main_threaded (line 43)
[INFO] [stdout]     src/lib.rs - main_threaded (line 52)
[INFO] [stdout]     src/lib.rs - test (line 168)
[INFO] [stdout]     src/lib.rs - test (line 177)
[INFO] [stdout]     src/lib.rs - test_basic (line 196)
[INFO] [stdout]     src/lib.rs - test_threaded (line 137)
[INFO] [stdout]     src/lib.rs - test_threaded (line 146)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 10 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "2f77b6ea88f699914d1d8eb5fa939f3ded8c2cc66f56ad6699b7cad711f7a7ad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2f77b6ea88f699914d1d8eb5fa939f3ded8c2cc66f56ad6699b7cad711f7a7ad", kill_on_drop: false }`
[INFO] [stdout] 2f77b6ea88f699914d1d8eb5fa939f3ded8c2cc66f56ad6699b7cad711f7a7ad