[INFO] fetching crate async-thread 0.1.2...
[INFO] testing async-thread-0.1.2 against 1.69.0 for beta-1.70-1
[INFO] extracting crate async-thread 0.1.2 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate async-thread 0.1.2 on toolchain 1.69.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.69.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate async-thread 0.1.2
[INFO] finished tweaking crates.io crate async-thread 0.1.2
[INFO] tweaked toml for crates.io crate async-thread 0.1.2 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" __CARGO_TEST_CHANNEL_OVERRIDE_DO_NOT_USE_THIS="nightly" "/workspace/cargo-home/bin/cargo" "+1.69.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.69.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 071c140b36f7c7eaf1ccee6888eff072b893b4aad7a14d1935a921b16f565f2d
[INFO] running `Command { std: "docker" "start" "-a" "071c140b36f7c7eaf1ccee6888eff072b893b4aad7a14d1935a921b16f565f2d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "071c140b36f7c7eaf1ccee6888eff072b893b4aad7a14d1935a921b16f565f2d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "071c140b36f7c7eaf1ccee6888eff072b893b4aad7a14d1935a921b16f565f2d", kill_on_drop: false }`
[INFO] [stdout] 071c140b36f7c7eaf1ccee6888eff072b893b4aad7a14d1935a921b16f565f2d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 53c66afa1344d292c69b01c31d7949bc360fe0525a7db95532a58a8bf17d7cc2
[INFO] running `Command { std: "docker" "start" "-a" "53c66afa1344d292c69b01c31d7949bc360fe0525a7db95532a58a8bf17d7cc2", kill_on_drop: false }`
[INFO] [stderr]    Compiling futures-channel v0.3.28
[INFO] [stderr]    Compiling async-thread v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.76s
[INFO] running `Command { std: "docker" "inspect" "53c66afa1344d292c69b01c31d7949bc360fe0525a7db95532a58a8bf17d7cc2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "53c66afa1344d292c69b01c31d7949bc360fe0525a7db95532a58a8bf17d7cc2", kill_on_drop: false }`
[INFO] [stdout] 53c66afa1344d292c69b01c31d7949bc360fe0525a7db95532a58a8bf17d7cc2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ecf305eaa87edbe24023dbdff6e84301a93ad093c474474853bddaa7784f6539
[INFO] running `Command { std: "docker" "start" "-a" "ecf305eaa87edbe24023dbdff6e84301a93ad093c474474853bddaa7784f6539", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling value-bag v1.0.0-alpha.9
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling event-listener v2.5.3
[INFO] [stderr]    Compiling parking v2.1.0
[INFO] [stderr]    Compiling futures-io v0.3.28
[INFO] [stderr]    Compiling waker-fn v1.1.0
[INFO] [stderr]    Compiling polling v2.8.0
[INFO] [stderr]    Compiling rustix v0.37.18
[INFO] [stderr]    Compiling async-io v1.13.0
[INFO] [stderr]    Compiling async-task v4.4.0
[INFO] [stderr]    Compiling concurrent-queue v2.2.0
[INFO] [stderr]    Compiling socket2 v0.4.9
[INFO] [stderr]    Compiling atomic-waker v1.1.1
[INFO] [stderr]    Compiling futures-lite v1.13.0
[INFO] [stderr]    Compiling async-lock v2.7.0
[INFO] [stderr]    Compiling async-channel v1.8.0
[INFO] [stderr]    Compiling async-executor v1.5.1
[INFO] [stderr]    Compiling ctor v0.1.26
[INFO] [stderr]    Compiling async-attributes v1.1.2
[INFO] [stderr]    Compiling blocking v1.3.1
[INFO] [stderr]    Compiling kv-log-macro v1.0.7
[INFO] [stderr]    Compiling async-global-executor v2.3.1
[INFO] [stderr]    Compiling async-std v1.12.0
[INFO] [stderr]    Compiling async-thread v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 9.67s
[INFO] running `Command { std: "docker" "inspect" "ecf305eaa87edbe24023dbdff6e84301a93ad093c474474853bddaa7784f6539", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ecf305eaa87edbe24023dbdff6e84301a93ad093c474474853bddaa7784f6539", kill_on_drop: false }`
[INFO] [stdout] ecf305eaa87edbe24023dbdff6e84301a93ad093c474474853bddaa7784f6539
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 77ff7ab87a1520521346eb341d007d31fdb10e8a512ccd148f66b7c4951618df
[INFO] running `Command { std: "docker" "start" "-a" "77ff7ab87a1520521346eb341d007d31fdb10e8a512ccd148f66b7c4951618df", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/async_thread-da685dd4c3290cb4)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test tests::it_works ... 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] [stderr]    Doc-tests async-thread
[INFO] [stdout] 
[INFO] [stdout] running 14 tests
[INFO] [stdout] test src/lib.rs - Builder::spawn (line 256) ... FAILED
[INFO] [stdout] test src/lib.rs - spawn (line 340) ... FAILED
[INFO] [stdout] test src/lib.rs - JoinHandle<T>::join (line 92) ... FAILED
[INFO] [stdout] test src/lib.rs - (line 3) ... FAILED
[INFO] [stdout] test src/lib.rs - Builder::new (line 172) ... FAILED
[INFO] [stdout] test src/lib.rs - JoinHandle (line 48) - compile ... FAILED
[INFO] [stdout] test src/lib.rs - Builder::name (line 199) ... FAILED
[INFO] [stdout] test src/lib.rs - spawn (line 362) ... FAILED
[INFO] [stdout] test src/lib.rs - spawn (line 326) ... FAILED
[INFO] [stdout] test src/lib.rs - Builder::stack_size (line 225) ... ok
[INFO] [stdout] test src/lib.rs - Builder (line 150) ... ok
[INFO] [stdout] test src/lib.rs - JoinHandle<T>::thread (line 113) ... ok
[INFO] [stdout] test src/lib.rs - JoinHandle (line 30) ... ok
[INFO] [stdout] test src/lib.rs - JoinHandle (line 38) ... ok
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - Builder::spawn (line 256) stdout ----
[INFO] [stdout] error[E0728]: `await` is only allowed inside `async` functions and blocks
[INFO] [stdout]   --> src/lib.rs:263:15
[INFO] [stdout]    |
[INFO] [stdout] 3  | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_lib_rs_256_0() {
[INFO] [stdout]    |                                         ------------------------------ this is not `async`
[INFO] [stdout] ...
[INFO] [stdout] 10 | handler.join().await.unwrap();
[INFO] [stdout]    |               ^^^^^^ only allowed inside `async` functions and blocks
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0728`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - spawn (line 340) stdout ----
[INFO] [stdout] error[E0728]: `await` is only allowed inside `async` functions and blocks
[INFO] [stdout]   --> src/lib.rs:355:14
[INFO] [stdout]    |
[INFO] [stdout] 3  | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_lib_rs_340_0() {
[INFO] [stdout]    |                                         ------------------------------ this is not `async`
[INFO] [stdout] ...
[INFO] [stdout] 18 | sender.join().await.expect("The sender thread has panicked");
[INFO] [stdout]    |              ^^^^^^ only allowed inside `async` functions and blocks
[INFO] [stdout] 
[INFO] [stdout] error[E0728]: `await` is only allowed inside `async` functions and blocks
[INFO] [stdout]   --> src/lib.rs:356:16
[INFO] [stdout]    |
[INFO] [stdout] 3  | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_lib_rs_340_0() {
[INFO] [stdout]    |                                         ------------------------------ this is not `async`
[INFO] [stdout] ...
[INFO] [stdout] 19 | receiver.join().await.expect("The receiver thread has panicked");
[INFO] [stdout]    |                ^^^^^^ only allowed inside `async` functions and blocks
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0728`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - JoinHandle<T>::join (line 92) stdout ----
[INFO] [stdout] error[E0728]: `await` is only allowed inside `async` functions and blocks
[INFO] [stdout]  --> src/lib.rs:98:19
[INFO] [stdout]   |
[INFO] [stdout] 3 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_lib_rs_92_0() {
[INFO] [stdout]   |                                         ----------------------------- this is not `async`
[INFO] [stdout] ...
[INFO] [stdout] 9 | join_handle.join().await.expect("Couldn't join on the associated thread");
[INFO] [stdout]   |                   ^^^^^^ only allowed inside `async` functions and blocks
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0728`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - (line 3) stdout ----
[INFO] [stdout] error[E0425]: cannot find function `spawn` in the crate root
[INFO] [stdout]  --> src/lib.rs:4:21
[INFO] [stdout]   |
[INFO] [stdout] 3 | let handle = crate::spawn(|| 5usize);
[INFO] [stdout]   |                     ^^^^^ not found in the crate root
[INFO] [stdout]   |
[INFO] [stdout] help: consider importing one of these items
[INFO] [stdout]   |
[INFO] [stdout] 2 | use async_std::task::spawn;
[INFO] [stdout]   |
[INFO] [stdout] 2 | use async_thread::spawn;
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::thread::spawn;
[INFO] [stdout]   |
[INFO] [stdout] help: if you import `spawn`, refer to it directly
[INFO] [stdout]   |
[INFO] [stdout] 3 - let handle = crate::spawn(|| 5usize);
[INFO] [stdout] 3 + let handle = spawn(|| 5usize);
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] error[E0728]: `await` is only allowed inside `async` functions and blocks
[INFO] [stdout]  --> src/lib.rs:5:25
[INFO] [stdout]   |
[INFO] [stdout] 2 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_lib_rs_3_0() {
[INFO] [stdout]   |                                         ---------------------------- this is not `async`
[INFO] [stdout] 3 | let handle = crate::spawn(|| 5usize);
[INFO] [stdout] 4 | assert_eq!(handle.join().await.map_err(drop), Ok(5));
[INFO] [stdout]   |                         ^^^^^^ only allowed inside `async` functions and blocks
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0425, E0728.
[INFO] [stdout] For more information about an error, try `rustc --explain E0425`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - Builder::new (line 172) stdout ----
[INFO] [stdout] error[E0728]: `await` is only allowed inside `async` functions and blocks
[INFO] [stdout]   --> src/lib.rs:181:15
[INFO] [stdout]    |
[INFO] [stdout] 3  | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_lib_rs_172_0() {
[INFO] [stdout]    |                                         ------------------------------ this is not `async`
[INFO] [stdout] ...
[INFO] [stdout] 12 | handler.join().await.unwrap();
[INFO] [stdout]    |               ^^^^^^ only allowed inside `async` functions and blocks
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0728`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - JoinHandle (line 48) stdout ----
[INFO] [stdout] error[E0728]: `await` is only allowed inside `async` functions and blocks
[INFO] [stdout]   --> src/lib.rs:60:23
[INFO] [stdout]    |
[INFO] [stdout] 3  | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_lib_rs_48_0() {
[INFO] [stdout]    |                                         ----------------------------- this is not `async`
[INFO] [stdout] ...
[INFO] [stdout] 15 | original_thread.join().await.expect("The thread being joined has panicked");
[INFO] [stdout]    |                       ^^^^^^ only allowed inside `async` functions and blocks
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `thread`
[INFO] [stdout]  --> src/lib.rs:54:9
[INFO] [stdout]   |
[INFO] [stdout] 9 |         thread::sleep(Duration::from_millis(10));
[INFO] [stdout]   |         ^^^^^^ use of undeclared crate or module `thread`
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `thread`
[INFO] [stdout]   --> src/lib.rs:66:1
[INFO] [stdout]    |
[INFO] [stdout] 21 | thread::sleep(Duration::from_millis(1000));
[INFO] [stdout]    | ^^^^^^ use of undeclared crate or module `thread`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0433, E0728.
[INFO] [stdout] For more information about an error, try `rustc --explain E0433`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - Builder::name (line 199) stdout ----
[INFO] [stdout] error[E0728]: `await` is only allowed inside `async` functions and blocks
[INFO] [stdout]   --> src/lib.rs:207:15
[INFO] [stdout]    |
[INFO] [stdout] 3  | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_lib_rs_199_0() {
[INFO] [stdout]    |                                         ------------------------------ this is not `async`
[INFO] [stdout] ...
[INFO] [stdout] 11 | handler.join().await.unwrap();
[INFO] [stdout]    |               ^^^^^^ only allowed inside `async` functions and blocks
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `thread`
[INFO] [stdout]  --> src/lib.rs:204:16
[INFO] [stdout]   |
[INFO] [stdout] 8 |     assert_eq!(thread::current().name(), Some("foo"))
[INFO] [stdout]   |                ^^^^^^ use of undeclared crate or module `thread`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0433, E0728.
[INFO] [stdout] For more information about an error, try `rustc --explain E0433`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - spawn (line 362) stdout ----
[INFO] [stdout] error[E0728]: `await` is only allowed inside `async` functions and blocks
[INFO] [stdout]  --> src/lib.rs:368:32
[INFO] [stdout]   |
[INFO] [stdout] 3 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_lib_rs_362_0() {
[INFO] [stdout]   |                                         ------------------------------ this is not `async`
[INFO] [stdout] ...
[INFO] [stdout] 9 | let result = computation.join().await.unwrap();
[INFO] [stdout]   |                                ^^^^^^ only allowed inside `async` functions and blocks
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0728`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - spawn (line 326) stdout ----
[INFO] [stdout] error[E0728]: `await` is only allowed inside `async` functions and blocks
[INFO] [stdout]  --> src/lib.rs:331:15
[INFO] [stdout]   |
[INFO] [stdout] 3 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_lib_rs_326_0() {
[INFO] [stdout]   |                                         ------------------------------ this is not `async`
[INFO] [stdout] ...
[INFO] [stdout] 8 | handler.join().await.unwrap();
[INFO] [stdout]   |               ^^^^^^ only allowed inside `async` functions and blocks
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0728`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - (line 3)
[INFO] [stdout]     src/lib.rs - Builder::name (line 199)
[INFO] [stdout]     src/lib.rs - Builder::new (line 172)
[INFO] [stdout]     src/lib.rs - Builder::spawn (line 256)
[INFO] [stdout]     src/lib.rs - JoinHandle (line 48)
[INFO] [stdout]     src/lib.rs - JoinHandle<T>::join (line 92)
[INFO] [stdout]     src/lib.rs - spawn (line 326)
[INFO] [stdout]     src/lib.rs - spawn (line 340)
[INFO] [stdout]     src/lib.rs - spawn (line 362)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 5 passed; 9 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.34s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "77ff7ab87a1520521346eb341d007d31fdb10e8a512ccd148f66b7c4951618df", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "77ff7ab87a1520521346eb341d007d31fdb10e8a512ccd148f66b7c4951618df", kill_on_drop: false }`
[INFO] [stdout] 77ff7ab87a1520521346eb341d007d31fdb10e8a512ccd148f66b7c4951618df
