[INFO] cloning repository https://github.com/davepacheco/toy-dns
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/davepacheco/toy-dns" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdavepacheco%2Ftoy-dns", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdavepacheco%2Ftoy-dns'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 099258fba7dfcdb8d6a4d3213a841dd82d26ebc7
[INFO] checking davepacheco/toy-dns against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdavepacheco%2Ftoy-dns" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/davepacheco/toy-dns
[INFO] finished tweaking git repo https://github.com/davepacheco/toy-dns
[INFO] tweaked toml for git repo https://github.com/davepacheco/toy-dns written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/davepacheco/toy-dns on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/davepacheco/toy-dns 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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e5abfa8238a3f0e9e646ef45907b1af619febdd5ea48870080c51cc26305357c
[INFO] running `Command { std: "docker" "start" "-a" "e5abfa8238a3f0e9e646ef45907b1af619febdd5ea48870080c51cc26305357c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e5abfa8238a3f0e9e646ef45907b1af619febdd5ea48870080c51cc26305357c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e5abfa8238a3f0e9e646ef45907b1af619febdd5ea48870080c51cc26305357c", kill_on_drop: false }`
[INFO] [stdout] e5abfa8238a3f0e9e646ef45907b1af619febdd5ea48870080c51cc26305357c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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 -Dunmustuse_in_always_ok" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 662f88990fa08c9c81dc8190a7668ca1ed2318eb1022b2cee98cbf35950bcde0
[INFO] running `Command { std: "docker" "start" "-a" "662f88990fa08c9c81dc8190a7668ca1ed2318eb1022b2cee98cbf35950bcde0", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]    Compiling libc v0.2.120
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[INFO] [stderr]     Checking slog-term v2.9.0
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[INFO] [stderr]    Compiling serde_derive_internals v0.25.0
[INFO] [stderr]    Compiling synstructure v0.12.6
[INFO] [stderr]    Compiling pest_generator v2.1.3
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling serde_derive v1.0.136
[INFO] [stderr]    Compiling thiserror-impl v1.0.30
[INFO] [stderr]    Compiling tokio-macros v1.7.0
[INFO] [stderr]    Compiling futures-macro v0.3.21
[INFO] [stderr]    Compiling zerocopy-derive v0.2.0
[INFO] [stderr]    Compiling async-trait v0.1.52
[INFO] [stderr]    Compiling enum-as-inner v0.4.0
[INFO] [stderr]    Compiling async-stream-impl v0.3.3
[INFO] [stderr]    Compiling structopt-derive v0.4.18
[INFO] [stderr]    Compiling clap_derive v3.1.4
[INFO] [stderr]    Compiling schemars_derive v0.8.8
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]     Checking async-stream v0.3.3
[INFO] [stderr]     Checking tokio v1.17.0
[INFO] [stderr]    Compiling zerocopy v0.3.0
[INFO] [stderr]     Checking futures-util v0.3.21
[INFO] [stderr]    Compiling thiserror v1.0.30
[INFO] [stderr]    Compiling rustfmt-wrapper v0.1.0
[INFO] [stderr]    Compiling dof v0.1.5
[INFO] [stderr]    Compiling dtrace-parser v0.1.12
[INFO] [stderr]     Checking structopt v0.3.26
[INFO] [stderr]     Checking futures-executor v0.3.21
[INFO] [stderr]     Checking futures v0.3.21
[INFO] [stderr]     Checking serde v1.0.136
[INFO] [stderr]     Checking tokio-util v0.6.9
[INFO] [stderr]     Checking tokio-rustls v0.23.2
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[INFO] [stderr]     Checking trust-dns-proto v0.21.1
[INFO] [stderr]     Checking serde_urlencoded v0.7.1
[INFO] [stderr]     Checking toml v0.5.8
[INFO] [stderr]     Checking trust-dns-client v0.21.1
[INFO] [stderr]     Checking trust-dns-resolver v0.21.1
[INFO] [stderr]     Checking h2 v0.3.12
[INFO] [stderr]     Checking clap v3.1.6
[INFO] [stderr]     Checking openapiv3 v1.0.1
[INFO] [stderr]     Checking usdt-impl v0.3.1
[INFO] [stderr]     Checking slog-json v2.6.0
[INFO] [stderr]    Compiling serde_tokenstream v0.1.3
[INFO] [stderr]     Checking slog-bunyan v2.4.0
[INFO] [stderr]     Checking trust-dns-server v0.21.1
[INFO] [stderr]    Compiling dropshot_endpoint v0.6.1-dev (https://github.com/oxidecomputer/dropshot#1e07d6cd)
[INFO] [stderr]     Checking typify-impl v0.0.6-dev (https://github.com/oxidecomputer/typify#8316b7d2)
[INFO] [stderr]     Checking hyper v0.14.17
[INFO] [stderr]    Compiling usdt-macro v0.3.1
[INFO] [stderr]    Compiling usdt-attr-macro v0.3.1
[INFO] [stderr]     Checking usdt v0.3.1
[INFO] [stderr]    Compiling typify-macro v0.0.6-dev (https://github.com/oxidecomputer/typify#8316b7d2)
[INFO] [stderr]     Checking hyper-tls v0.5.0
[INFO] [stderr]     Checking hyper-rustls v0.23.0
[INFO] [stderr]     Checking dropshot v0.6.1-dev (https://github.com/oxidecomputer/dropshot#1e07d6cd)
[INFO] [stderr]    Compiling typify v0.0.6-dev (https://github.com/oxidecomputer/typify#8316b7d2)
[INFO] [stderr]     Checking progenitor-impl v0.0.0 (https://github.com/oxidecomputer/progenitor#ea80069e)
[INFO] [stderr]     Checking reqwest v0.11.10
[INFO] [stderr]     Checking progenitor-client v0.0.0 (https://github.com/oxidecomputer/progenitor#ea80069e)
[INFO] [stderr]    Compiling progenitor-macro v0.0.0 (https://github.com/oxidecomputer/progenitor#ea80069e)
[INFO] [stderr]     Checking progenitor v0.0.0 (https://github.com/oxidecomputer/progenitor#ea80069e)
[INFO] [stderr]     Checking toy-dns v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `NeedRequestContext` is never constructed
[INFO] [stdout]   --> src/dropshot_server.rs:31:12
[INFO] [stdout]    |
[INFO] [stdout] 31 |     rqctx: Arc<dropshot::RequestContext<Arc<Context>>>,
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `NeedHttpResponse` is never constructed
[INFO] [stdout]   --> src/dropshot_server.rs:32:6
[INFO] [stdout]    |
[INFO] [stdout] 32 | ) -> Result<dropshot::HttpResponseOk<Vec<DnsKV>>, dropshot::HttpError> {
[INFO] [stdout]    |      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `NeedRequestContext` is never constructed
[INFO] [stdout]   --> src/dropshot_server.rs:46:12
[INFO] [stdout]    |
[INFO] [stdout] 46 |     rqctx: Arc<dropshot::RequestContext<Arc<Context>>>,
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `NeedHttpResponse` is never constructed
[INFO] [stdout]   --> src/dropshot_server.rs:48:6
[INFO] [stdout]    |
[INFO] [stdout] 48 | ) -> Result<dropshot::HttpResponseOk<()>, dropshot::HttpError> {
[INFO] [stdout]    |      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `NeedRequestContext` is never constructed
[INFO] [stdout]   --> src/dropshot_server.rs:61:12
[INFO] [stdout]    |
[INFO] [stdout] 61 |     rqctx: Arc<dropshot::RequestContext<Arc<Context>>>,
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `NeedHttpResponse` is never constructed
[INFO] [stdout]   --> src/dropshot_server.rs:63:6
[INFO] [stdout]    |
[INFO] [stdout] 63 | ) -> Result<dropshot::HttpResponseOk<()>, dropshot::HttpError> {
[INFO] [stdout]    |      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `NeedRequestContext` is never constructed
[INFO] [stdout]   --> src/dropshot_server.rs:31:12
[INFO] [stdout]    |
[INFO] [stdout] 31 |     rqctx: Arc<dropshot::RequestContext<Arc<Context>>>,
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `NeedHttpResponse` is never constructed
[INFO] [stdout]   --> src/dropshot_server.rs:32:6
[INFO] [stdout]    |
[INFO] [stdout] 32 | ) -> Result<dropshot::HttpResponseOk<Vec<DnsKV>>, dropshot::HttpError> {
[INFO] [stdout]    |      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `NeedRequestContext` is never constructed
[INFO] [stdout]   --> src/dropshot_server.rs:46:12
[INFO] [stdout]    |
[INFO] [stdout] 46 |     rqctx: Arc<dropshot::RequestContext<Arc<Context>>>,
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `NeedHttpResponse` is never constructed
[INFO] [stdout]   --> src/dropshot_server.rs:48:6
[INFO] [stdout]    |
[INFO] [stdout] 48 | ) -> Result<dropshot::HttpResponseOk<()>, dropshot::HttpError> {
[INFO] [stdout]    |      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `NeedRequestContext` is never constructed
[INFO] [stdout]   --> src/dropshot_server.rs:61:12
[INFO] [stdout]    |
[INFO] [stdout] 61 |     rqctx: Arc<dropshot::RequestContext<Arc<Context>>>,
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `NeedHttpResponse` is never constructed
[INFO] [stdout]   --> src/dropshot_server.rs:63:6
[INFO] [stdout]    |
[INFO] [stdout] 63 | ) -> Result<dropshot::HttpResponseOk<()>, dropshot::HttpError> {
[INFO] [stdout]    |      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/bin/toyadm.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 | /     #[structopt(short, long)]
[INFO] [stdout] 19 | |     address: Option<String>,
[INFO] [stdout]    | |___________________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/bin/toyadm.rs:38:5
[INFO] [stdout]    |
[INFO] [stdout] 38 |     name: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/bin/toyadm.rs:44:5
[INFO] [stdout]    |
[INFO] [stdout] 44 |     name: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/bin/toyadm.rs:48:5
[INFO] [stdout]    |
[INFO] [stdout] 48 |     target: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/bin/toyadm.rs:53:5
[INFO] [stdout]    |
[INFO] [stdout] 53 |     name: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/bin/toyadm.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 | /     #[structopt(short, long)]
[INFO] [stdout] 19 | |     address: Option<String>,
[INFO] [stdout]    | |___________________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/bin/toyadm.rs:38:5
[INFO] [stdout]    |
[INFO] [stdout] 38 |     name: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/bin/toyadm.rs:44:5
[INFO] [stdout]    |
[INFO] [stdout] 44 |     name: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/bin/toyadm.rs:48:5
[INFO] [stdout]    |
[INFO] [stdout] 48 |     target: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/bin/toyadm.rs:53:5
[INFO] [stdout]    |
[INFO] [stdout] 53 |     name: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `toy-dns` (bin "toyadm") due to 5 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: this type will no longer be must used: Result<PathBuf, Infallible>
[INFO] [stdout]   --> src/bin/toy-dns-server.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | /     #[clap(long)]
[INFO] [stdout] 18 | |     config_file: PathBuf,
[INFO] [stdout]    | |________________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<PathBuf, Infallible>
[INFO] [stdout]   --> src/bin/toy-dns-server.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | /     #[clap(long)]
[INFO] [stdout] 18 | |     config_file: PathBuf,
[INFO] [stdout]    | |________________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `toy-dns` (bin "toyadm" test) due to 5 previous errors
[INFO] [stderr] error: could not compile `toy-dns` (bin "toy-dns-server" test) due to 1 previous error
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> tests/basic_test.rs:179:27
[INFO] [stdout]     |
[INFO] [stdout] 179 |             bind_address: format!("127.0.0.1:{}", dns_port).parse().unwrap(),
[INFO] [stdout]     |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `toy-dns` (bin "toy-dns-server") due to 1 previous error
[INFO] [stderr] error: could not compile `toy-dns` (test "basic_test") due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "662f88990fa08c9c81dc8190a7668ca1ed2318eb1022b2cee98cbf35950bcde0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "662f88990fa08c9c81dc8190a7668ca1ed2318eb1022b2cee98cbf35950bcde0", kill_on_drop: false }`
[INFO] [stdout] 662f88990fa08c9c81dc8190a7668ca1ed2318eb1022b2cee98cbf35950bcde0
