[INFO] fetching crate dverf 0.1.5...
[INFO] testing dverf-0.1.5 against master#2fd6efc32704647e64d3d646d21c4c68eae100e4 for pr-149852-1
[INFO] extracting crate dverf 0.1.5 into /workspace/builds/worker-6-tc1/source
[INFO] started tweaking crates.io crate dverf 0.1.5
[INFO] finished tweaking crates.io crate dverf 0.1.5
[INFO] tweaked toml for crates.io crate dverf 0.1.5 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate dverf 0.1.5 on toolchain 2fd6efc32704647e64d3d646d21c4c68eae100e4
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2fd6efc32704647e64d3d646d21c4c68eae100e4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate dverf 0.1.5 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" "+2fd6efc32704647e64d3d646d21c4c68eae100e4" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
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[INFO] [stderr]   Downloaded libc v0.2.171
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[INFO] [stderr]    Compiling dverf v0.1.5 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.36s
[INFO] running `Command { std: "docker" "inspect" "af2f4089c07987b7b2afe77ea5486d8945be2eda1fc036bf90ff1260aecc4fe9", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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=forbid" "-e" "RUSTDOCFLAGS=--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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+2fd6efc32704647e64d3d646d21c4c68eae100e4" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
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[INFO] [stderr]    Compiling dverf v0.1.5 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.96s
[INFO] running `Command { std: "docker" "inspect" "ace4852ba1d21649ca8e47d3ca5c8a525e8f6a705917b0deed2fb8f7feb46465", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ace4852ba1d21649ca8e47d3ca5c8a525e8f6a705917b0deed2fb8f7feb46465", kill_on_drop: false }`
[INFO] [stdout] ace4852ba1d21649ca8e47d3ca5c8a525e8f6a705917b0deed2fb8f7feb46465
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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=forbid" "-e" "RUSTDOCFLAGS=--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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+2fd6efc32704647e64d3d646d21c4c68eae100e4" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 1b20fdce3782f5a73f75e5d87bb02c0661972b585fe3f406c4710ade15c94ec9
[INFO] running `Command { std: "docker" "start" "-a" "1b20fdce3782f5a73f75e5d87bb02c0661972b585fe3f406c4710ade15c94ec9", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/dverf-0eef6b07be3914af)
[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] [stderr]    Doc-tests dverf
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test src/../readme.md - (line 59) ... FAILED
[INFO] [stdout] test src/../readme.md - (line 47) ... FAILED
[INFO] [stdout] test src/../readme.md - (line 15) ... FAILED
[INFO] [stdout] test src/../readme.md - (line 34) ... FAILED
[INFO] [stdout] test src/lib.rs - Device::from_interface (line 142) - compile ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/../readme.md - (line 59) stdout ----
[INFO] [stdout] error[E0425]: cannot find value `device` in this scope
[INFO] [stdout]   --> src/../readme.md:60:1
[INFO] [stdout]    |
[INFO] [stdout] 60 | device.set_transceiver_mode(TransceiverMode::Transmit).await?;
[INFO] [stdout]    | ^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `TransceiverMode`
[INFO] [stdout]   --> src/../readme.md:60:29
[INFO] [stdout]    |
[INFO] [stdout] 60 | device.set_transceiver_mode(TransceiverMode::Transmit).await?;
[INFO] [stdout]    |                             ^^^^^^^^^^^^^^^ use of undeclared type `TransceiverMode`
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this enum
[INFO] [stdout]    |
[INFO] [stdout] 59 + use dverf::TransceiverMode;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `device` in this scope
[INFO] [stdout]   --> src/../readme.md:64:12
[INFO] [stdout]    |
[INFO] [stdout] 64 | let sink = device.as_sink();
[INFO] [stdout]    |            ^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `samples_iter` in this scope
[INFO] [stdout]   --> src/../readme.md:67:14
[INFO] [stdout]    |
[INFO] [stdout] 67 | for chunk in samples_iter {
[INFO] [stdout]    |              ^^^^^^^^^^^^ not found in this scope
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] [stdout] 
[INFO] [stdout] error[E0728]: `await` is only allowed inside `async` functions and blocks
[INFO] [stdout]   --> src/../readme.md:60:56
[INFO] [stdout]    |
[INFO] [stdout] 59 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src____readme_md_59_0() {
[INFO] [stdout]    |                                      ---------------------------------------- this is not `async`
[INFO] [stdout] 60 | device.set_transceiver_mode(TransceiverMode::Transmit).await?;
[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/../readme.md:68:20
[INFO] [stdout]    |
[INFO] [stdout] 59 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src____readme_md_59_0() {
[INFO] [stdout]    |                                      ---------------------------------------- this is not `async`
[INFO] [stdout] ...
[INFO] [stdout] 68 |   sink.feed(chunk).await?;
[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/../readme.md:72:14
[INFO] [stdout]    |
[INFO] [stdout] 59 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src____readme_md_59_0() {
[INFO] [stdout]    |                                      ---------------------------------------- this is not `async`
[INFO] [stdout] ...
[INFO] [stdout] 72 | sink.flush().await?;
[INFO] [stdout]    |              ^^^^^ only allowed inside `async` functions and blocks
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 7 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0425, E0433, E0728.
[INFO] [stdout] For more information about an error, try `rustc --explain E0425`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/../readme.md - (line 47) stdout ----
[INFO] [stdout] error[E0425]: cannot find value `device` in this scope
[INFO] [stdout]   --> src/../readme.md:50:13
[INFO] [stdout]    |
[INFO] [stdout] 50 | let chunk = device.next().await;
[INFO] [stdout]    |             ^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error[E0728]: `await` is only allowed inside `async` functions and blocks
[INFO] [stdout]   --> src/../readme.md:50:27
[INFO] [stdout]    |
[INFO] [stdout] 47 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src____readme_md_47_0() {
[INFO] [stdout]    |                                      ---------------------------------------- this is not `async`
[INFO] [stdout] ...
[INFO] [stdout] 50 | let chunk = device.next().await;
[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/../readme.md - (line 15) stdout ----
[INFO] [stdout] error[E0599]: no method named `context` found for enum `Option<T>` in the current scope
[INFO] [stdout]   --> src/../readme.md:22:6
[INFO] [stdout]    |
[INFO] [stdout] 20 |     let device_info = nusb::list_devices()?
[INFO] [stdout]    |  _____________________-
[INFO] [stdout] 21 | |     .find(|dev| dev.vendor_id() == VENDOR_ID && dev.product_id() == 0x6089)
[INFO] [stdout] 22 | |     .context("device not connected")?;
[INFO] [stdout]    | |     -^^^^^^^ method not found in `Option<DeviceInfo>`
[INFO] [stdout]    | |_____|
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `anyhow`
[INFO] [stdout]   --> src/../readme.md:19:14
[INFO] [stdout]    |
[INFO] [stdout] 19 | fn open() -> anyhow::Result<Device> {
[INFO] [stdout]    |              ^^^^^^ use of unresolved module or unlinked crate `anyhow`
[INFO] [stdout]    |
[INFO] [stdout]    = help: if you wanted to use a crate named `anyhow`, use `cargo add anyhow` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0433, E0599.
[INFO] [stdout] For more information about an error, try `rustc --explain E0433`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/../readme.md - (line 34) stdout ----
[INFO] [stdout] error[E0425]: cannot find value `device` in this scope
[INFO] [stdout]   --> src/../readme.md:35:1
[INFO] [stdout]    |
[INFO] [stdout] 35 | device.set_freq(2412, 0).await?;
[INFO] [stdout]    | ^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `device` in this scope
[INFO] [stdout]   --> src/../readme.md:36:1
[INFO] [stdout]    |
[INFO] [stdout] 36 | device.set_sample_rate(200_000_000, 10).await?;
[INFO] [stdout]    | ^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `device` in this scope
[INFO] [stdout]   --> src/../readme.md:37:1
[INFO] [stdout]    |
[INFO] [stdout] 37 | device.set_baseband_filter_bandwidth(15_000_000).await?;
[INFO] [stdout]    | ^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `device` in this scope
[INFO] [stdout]   --> src/../readme.md:38:1
[INFO] [stdout]    |
[INFO] [stdout] 38 | device.set_lna_gain(40).await?;
[INFO] [stdout]    | ^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `device` in this scope
[INFO] [stdout]   --> src/../readme.md:39:1
[INFO] [stdout]    |
[INFO] [stdout] 39 | device.set_vga_gain(8).await?;
[INFO] [stdout]    | ^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `device` in this scope
[INFO] [stdout]   --> src/../readme.md:40:1
[INFO] [stdout]    |
[INFO] [stdout] 40 | device.set_transceiver_mode(TransceiverMode::Receive).await?;
[INFO] [stdout]    | ^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `TransceiverMode`
[INFO] [stdout]   --> src/../readme.md:40:29
[INFO] [stdout]    |
[INFO] [stdout] 40 | device.set_transceiver_mode(TransceiverMode::Receive).await?;
[INFO] [stdout]    |                             ^^^^^^^^^^^^^^^ use of undeclared type `TransceiverMode`
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this enum
[INFO] [stdout]    |
[INFO] [stdout] 34 + use dverf::TransceiverMode;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] error[E0728]: `await` is only allowed inside `async` functions and blocks
[INFO] [stdout]   --> src/../readme.md:35:26
[INFO] [stdout]    |
[INFO] [stdout] 34 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src____readme_md_34_0() {
[INFO] [stdout]    |                                      ---------------------------------------- this is not `async`
[INFO] [stdout] 35 | device.set_freq(2412, 0).await?;
[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/../readme.md:36:41
[INFO] [stdout]    |
[INFO] [stdout] 34 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src____readme_md_34_0() {
[INFO] [stdout]    |                                      ---------------------------------------- this is not `async`
[INFO] [stdout] 35 | device.set_freq(2412, 0).await?;
[INFO] [stdout] 36 | device.set_sample_rate(200_000_000, 10).await?;
[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/../readme.md:37:50
[INFO] [stdout]    |
[INFO] [stdout] 34 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src____readme_md_34_0() {
[INFO] [stdout]    |                                      ---------------------------------------- this is not `async`
[INFO] [stdout] ...
[INFO] [stdout] 37 | device.set_baseband_filter_bandwidth(15_000_000).await?;
[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/../readme.md:38:25
[INFO] [stdout]    |
[INFO] [stdout] 34 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src____readme_md_34_0() {
[INFO] [stdout]    |                                      ---------------------------------------- this is not `async`
[INFO] [stdout] ...
[INFO] [stdout] 38 | device.set_lna_gain(40).await?;
[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/../readme.md:39:24
[INFO] [stdout]    |
[INFO] [stdout] 34 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src____readme_md_34_0() {
[INFO] [stdout]    |                                      ---------------------------------------- this is not `async`
[INFO] [stdout] ...
[INFO] [stdout] 39 | device.set_vga_gain(8).await?;
[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/../readme.md:40:55
[INFO] [stdout]    |
[INFO] [stdout] 34 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src____readme_md_34_0() {
[INFO] [stdout]    |                                      ---------------------------------------- this is not `async`
[INFO] [stdout] ...
[INFO] [stdout] 40 | device.set_transceiver_mode(TransceiverMode::Receive).await?;
[INFO] [stdout]    |                                                       ^^^^^ only allowed inside `async` functions and blocks
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 13 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0425, E0433, 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 - Device::from_interface (line 142) stdout ----
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `FromResidual`)
[INFO] [stdout]    --> src/lib.rs:146:39
[INFO] [stdout]     |
[INFO] [stdout] 143 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_lib_rs_142_0() {
[INFO] [stdout]     |                                      ----------------------------------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 146 | let device_info = nusb::list_devices()?
[INFO] [stdout]     |                                       ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout]     |
[INFO] [stdout] help: consider adding return type
[INFO] [stdout]     |
[INFO] [stdout] 143 ~ fn main() { #[allow(non_snake_case)] fn _doctest_main_src_lib_rs_142_0() -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout] 144 | use dverf::VENDOR_ID;
[INFO] [stdout] ...
[INFO] [stdout] 151 | let interface = device.claim_interface(0)?;
[INFO] [stdout] 152 +     Ok(())
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `context` found for enum `Option<T>` in the current scope
[INFO] [stdout]    --> src/lib.rs:148:6
[INFO] [stdout]     |
[INFO] [stdout] 146 |   let device_info = nusb::list_devices()?
[INFO] [stdout]     |  ___________________-
[INFO] [stdout] 147 | |     .find(|dev| dev.vendor_id() == VENDOR_ID && dev.product_id() == 0x6089)
[INFO] [stdout] 148 | |     .context("device not connected")?;
[INFO] [stdout]     | |     -^^^^^^^ method not found in `Option<DeviceInfo>`
[INFO] [stdout]     | |_____|
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0277, E0599.
[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/../readme.md - (line 15)
[INFO] [stdout]     src/../readme.md - (line 34)
[INFO] [stdout]     src/../readme.md - (line 47)
[INFO] [stdout]     src/../readme.md - (line 59)
[INFO] [stdout]     src/lib.rs - Device::from_interface (line 142)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 5 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.22s
[INFO] [stdout] 
[INFO] [stdout] all doctests ran in 0.40s; merged doctests compilation took 0.17s
[INFO] running `Command { std: "docker" "inspect" "1b20fdce3782f5a73f75e5d87bb02c0661972b585fe3f406c4710ade15c94ec9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1b20fdce3782f5a73f75e5d87bb02c0661972b585fe3f406c4710ade15c94ec9", kill_on_drop: false }`
[INFO] [stdout] 1b20fdce3782f5a73f75e5d87bb02c0661972b585fe3f406c4710ade15c94ec9
