[INFO] cloning repository https://github.com/nok-mt/100_exercises_to_learn_rust [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/nok-mt/100_exercises_to_learn_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnok-mt%2F100_exercises_to_learn_rust", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnok-mt%2F100_exercises_to_learn_rust'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] b9c4d540c950082b0b3e4a50336fc1cf2835e662 [INFO] testing nok-mt/100_exercises_to_learn_rust against beta-2025-10-28 for beta-1.92-2 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnok-mt%2F100_exercises_to_learn_rust" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/nok-mt/100_exercises_to_learn_rust [INFO] finished tweaking git repo https://github.com/nok-mt/100_exercises_to_learn_rust [INFO] tweaked toml for git repo https://github.com/nok-mt/100_exercises_to_learn_rust written to /workspace/builds/worker-6-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/nok-mt/100_exercises_to_learn_rust on toolchain beta-2025-10-28 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-10-28" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/nok-mt/100_exercises_to_learn_rust 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" "+beta-2025-10-28" "fetch" "--manifest-path" "Cargo.toml", 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running `Command { std: "docker" "start" "-a" "71090e94e8b24361ad60ae21b9d7142e10302da77d2250e97c76d428c7b25118", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "71090e94e8b24361ad60ae21b9d7142e10302da77d2250e97c76d428c7b25118", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "71090e94e8b24361ad60ae21b9d7142e10302da77d2250e97c76d428c7b25118", kill_on_drop: false }` [INFO] [stdout] 71090e94e8b24361ad60ae21b9d7142e10302da77d2250e97c76d428c7b25118 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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=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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 3235aa9823f5b446e40b849477d800f1925ceecaf149d6a8b4d5f87643100570 [INFO] running `Command { std: "docker" "start" "-a" "3235aa9823f5b446e40b849477d800f1925ceecaf149d6a8b4d5f87643100570", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.86 [INFO] [stderr] Compiling unicode-ident v1.0.12 [INFO] [stderr] Compiling cfg-if v1.0.0 [INFO] [stderr] Compiling libc v0.2.155 [INFO] [stderr] Compiling thiserror v1.0.63 [INFO] [stderr] Compiling 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Compiling semver v1.0.23 [INFO] [stderr] Compiling headers v0.3.9 [INFO] [stderr] Compiling humantime v2.1.0 [INFO] [stderr] Compiling crossbeam-deque v0.8.5 [INFO] [stderr] Compiling tempfile v3.11.0 [INFO] [stderr] Compiling topological-sort v0.2.2 [INFO] [stderr] Compiling notify v6.1.1 [INFO] [stderr] Compiling shlex v1.3.0 [INFO] [stderr] Compiling unicode-width v0.1.13 [INFO] [stderr] Compiling pathdiff v0.2.1 [INFO] [stderr] Compiling pulldown-cmark v0.11.0 [INFO] [stderr] Compiling notify-debouncer-mini v0.4.1 [INFO] [stderr] Compiling getopts v0.2.21 [INFO] [stderr] Compiling pulldown-cmark-escape v0.11.0 [INFO] [stderr] Compiling either v1.13.0 [INFO] [stderr] Compiling for_ v0.1.0 (/opt/rustwide/workdir/exercises/02_basic_calculator/07_for) [INFO] [stderr] Compiling enum_ v0.1.0 (/opt/rustwide/workdir/exercises/05_ticket_v2/01_enum) [INFO] [stderr] Compiling intro_03 v0.1.0 (/opt/rustwide/workdir/exercises/04_traits/00_intro) [INFO] [stdout] warning: function `intro` is never used [INFO] [stdout] --> exercises/04_traits/00_intro/src/lib.rs:1:4 [INFO] [stdout] | [INFO] [stdout] 1 | fn intro() -> &'static str { [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling str_slice v0.1.0 (/opt/rustwide/workdir/exercises/04_traits/06_str_slice) [INFO] [stdout] warning: struct `Ticket` is never constructed [INFO] [stdout] --> exercises/05_ticket_v2/01_enum/src/lib.rs:7:8 [INFO] [stdout] | [INFO] [stdout] 7 | struct Ticket { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling tryfrom v0.1.0 (/opt/rustwide/workdir/exercises/05_ticket_v2/13_try_from) [INFO] [stdout] warning: enum `Status` is never used [INFO] [stdout] --> exercises/05_ticket_v2/01_enum/src/lib.rs:13:6 [INFO] [stdout] | [INFO] [stdout] 13 | enum Status { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `new`, `title`, `description`, and `status` are never used [INFO] [stdout] --> exercises/05_ticket_v2/01_enum/src/lib.rs:18:12 [INFO] [stdout] | [INFO] [stdout] 17 | impl Ticket { [INFO] [stdout] | ----------- associated items in this implementation [INFO] [stdout] 18 | pub fn new(title: String, description: String, status: String) -> Ticket { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 42 | pub fn title(&self) -> &String { [INFO] [stdout] | ^^^^^ [INFO] [stdout] ... [INFO] [stdout] 46 | pub fn description(&self) -> &String { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 50 | pub fn status(&self) -> &String { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling welcome_00 v0.1.0 (/opt/rustwide/workdir/exercises/01_intro/00_welcome) [INFO] [stderr] Compiling mut_slice v0.1.0 (/opt/rustwide/workdir/exercises/06_ticket_management/11_mutable_slices) [INFO] [stdout] warning: enum `Status` is never used [INFO] [stdout] --> exercises/05_ticket_v2/13_try_from/src/lib.rs:5:6 [INFO] [stdout] | [INFO] [stdout] 5 | enum Status { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling outro_04 v0.1.0 (/opt/rustwide/workdir/exercises/05_ticket_v2/15_outro) [INFO] [stderr] Compiling resizing v0.1.0 (/opt/rustwide/workdir/exercises/06_ticket_management/03_resizing) [INFO] [stdout] warning: function `greeting` is never used [INFO] [stdout] --> exercises/01_intro/00_welcome/src/lib.rs:18:4 [INFO] [stdout] | [INFO] [stdout] 18 | fn greeting() -> &'static str { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling chrono v0.4.38 [INFO] [stderr] Compiling itertools v0.13.0 [INFO] [stderr] Compiling panics v0.1.0 (/opt/rustwide/workdir/exercises/02_basic_calculator/04_panics) [INFO] [stderr] Compiling static v0.1.0 (/opt/rustwide/workdir/exercises/07_threads/02_static) [INFO] [stdout] error[E0277]: `TicketTitle` doesn't implement `Debug` [INFO] [stdout] --> exercises/05_ticket_v2/15_outro/src/lib.rs:25:5 [INFO] [stdout] | [INFO] [stdout] 15 | #[derive(Debug, PartialEq, Clone)] [INFO] [stdout] | ----- in this derive macro expansion [INFO] [stdout] ... [INFO] [stdout] 25 | pub title: TicketTitle, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ the trait `Debug` is not implemented for `TicketTitle` [INFO] [stdout] | [INFO] [stdout] = note: add `#[derive(Debug)]` to `TicketTitle` or manually `impl Debug for TicketTitle` [INFO] [stdout] help: consider annotating `TicketTitle` with `#[derive(Debug)]` [INFO] [stdout] --> exercises/05_ticket_v2/15_outro/src/title.rs:5:1 [INFO] [stdout] | [INFO] [stdout] 5 + #[derive(Debug)] [INFO] [stdout] 6 | pub struct TicketTitle(String); [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0277]: `TicketDescription` doesn't implement `Debug` [INFO] [stdout] --> exercises/05_ticket_v2/15_outro/src/lib.rs:26:5 [INFO] [stdout] | [INFO] [stdout] 15 | #[derive(Debug, PartialEq, Clone)] [INFO] [stdout] | ----- in this derive macro expansion [INFO] [stdout] ... [INFO] [stdout] 26 | pub description: TicketDescription, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the trait `Debug` is not implemented for `TicketDescription` [INFO] [stdout] | [INFO] [stdout] = note: add `#[derive(Debug)]` to `TicketDescription` or manually `impl Debug for TicketDescription` [INFO] [stdout] help: consider annotating `TicketDescription` with `#[derive(Debug)]` [INFO] [stdout] --> exercises/05_ticket_v2/15_outro/src/description.rs:5:1 [INFO] [stdout] | [INFO] [stdout] 5 + #[derive(Debug)] [INFO] [stdout] 6 | pub struct TicketDescription(String); [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0277]: `Status` doesn't implement `Debug` [INFO] [stdout] --> exercises/05_ticket_v2/15_outro/src/lib.rs:27:5 [INFO] [stdout] | [INFO] [stdout] 15 | #[derive(Debug, PartialEq, Clone)] [INFO] [stdout] | ----- in this derive macro expansion [INFO] [stdout] ... [INFO] [stdout] 27 | pub status: Status, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ the trait `Debug` is not implemented for `Status` [INFO] [stdout] | [INFO] [stdout] = note: add `#[derive(Debug)]` to `Status` or manually `impl Debug for Status` [INFO] [stdout] help: consider annotating `Status` with `#[derive(Debug)]` [INFO] [stdout] --> exercises/05_ticket_v2/15_outro/src/status.rs:4:1 [INFO] [stdout] | [INFO] [stdout] 4 + #[derive(Debug)] [INFO] [stdout] 5 | pub enum Status { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0369]: binary operation `==` cannot be applied to type `TicketTitle` [INFO] [stdout] --> exercises/05_ticket_v2/15_outro/src/lib.rs:25:5 [INFO] [stdout] | [INFO] [stdout] 15 | #[derive(Debug, PartialEq, Clone)] [INFO] [stdout] | --------- in this derive macro expansion [INFO] [stdout] ... [INFO] [stdout] 25 | pub title: TicketTitle, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] note: an implementation of `PartialEq` might be missing for `TicketTitle` [INFO] [stdout] --> exercises/05_ticket_v2/15_outro/src/title.rs:5:1 [INFO] [stdout] | [INFO] [stdout] 5 | pub struct TicketTitle(String); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ must implement `PartialEq` [INFO] [stdout] help: consider annotating `TicketTitle` with `#[derive(PartialEq)]` [INFO] [stdout] --> exercises/05_ticket_v2/15_outro/src/title.rs:5:1 [INFO] [stdout] | [INFO] [stdout] 5 + #[derive(PartialEq)] [INFO] [stdout] 6 | pub struct TicketTitle(String); [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0369]: binary operation `==` cannot be applied to type `TicketDescription` [INFO] [stdout] --> exercises/05_ticket_v2/15_outro/src/lib.rs:26:5 [INFO] [stdout] | [INFO] [stdout] 15 | #[derive(Debug, PartialEq, Clone)] [INFO] [stdout] | --------- in this derive macro expansion [INFO] [stdout] ... [INFO] [stdout] 26 | pub description: TicketDescription, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] note: an implementation of `PartialEq` might be missing for `TicketDescription` [INFO] [stdout] --> exercises/05_ticket_v2/15_outro/src/description.rs:5:1 [INFO] [stdout] | [INFO] [stdout] 5 | pub struct TicketDescription(String); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ must implement `PartialEq` [INFO] [stdout] help: consider annotating `TicketDescription` with `#[derive(PartialEq)]` [INFO] [stdout] --> exercises/05_ticket_v2/15_outro/src/description.rs:5:1 [INFO] [stdout] | [INFO] [stdout] 5 + #[derive(PartialEq)] [INFO] [stdout] 6 | pub struct TicketDescription(String); [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0369]: binary operation `==` cannot be applied to type `Status` [INFO] [stdout] --> exercises/05_ticket_v2/15_outro/src/lib.rs:27:5 [INFO] [stdout] | [INFO] [stdout] 15 | #[derive(Debug, PartialEq, Clone)] [INFO] [stdout] | --------- in this derive macro expansion [INFO] [stdout] ... [INFO] [stdout] 27 | pub status: Status, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] note: an implementation of `PartialEq` might be missing for `Status` [INFO] [stdout] --> exercises/05_ticket_v2/15_outro/src/status.rs:4:1 [INFO] [stdout] | [INFO] [stdout] 4 | pub enum Status { [INFO] [stdout] | ^^^^^^^^^^^^^^^ must implement `PartialEq` [INFO] [stdout] help: consider annotating `Status` with `#[derive(PartialEq)]` [INFO] [stdout] --> exercises/05_ticket_v2/15_outro/src/status.rs:4:1 [INFO] [stdout] | [INFO] [stdout] 4 + #[derive(PartialEq)] [INFO] [stdout] 5 | pub enum Status { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0277]: the trait bound `TicketTitle: Clone` is not satisfied [INFO] [stdout] --> exercises/05_ticket_v2/15_outro/src/lib.rs:25:5 [INFO] [stdout] | [INFO] [stdout] 15 | #[derive(Debug, PartialEq, Clone)] [INFO] [stdout] | ----- in this derive macro expansion [INFO] [stdout] ... [INFO] [stdout] 25 | pub title: TicketTitle, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ the trait `Clone` is not implemented for `TicketTitle` [INFO] [stdout] | [INFO] [stdout] help: consider annotating `TicketTitle` with `#[derive(Clone)]` [INFO] [stdout] --> exercises/05_ticket_v2/15_outro/src/title.rs:5:1 [INFO] [stdout] | [INFO] [stdout] 5 + #[derive(Clone)] [INFO] [stdout] 6 | pub struct TicketTitle(String); [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0277]: the trait bound `TicketDescription: Clone` is not satisfied [INFO] [stdout] --> exercises/05_ticket_v2/15_outro/src/lib.rs:26:5 [INFO] [stdout] | [INFO] [stdout] 15 | #[derive(Debug, PartialEq, Clone)] [INFO] [stdout] | ----- in this derive macro expansion [INFO] [stdout] ... [INFO] [stdout] 26 | pub description: TicketDescription, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the trait `Clone` is not implemented for `TicketDescription` [INFO] [stdout] | [INFO] [stdout] help: consider annotating `TicketDescription` with `#[derive(Clone)]` [INFO] [stdout] --> exercises/05_ticket_v2/15_outro/src/description.rs:5:1 [INFO] [stdout] | [INFO] [stdout] 5 + #[derive(Clone)] [INFO] [stdout] 6 | pub struct TicketDescription(String); [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0277]: the trait bound `Status: Clone` is not satisfied [INFO] [stdout] --> exercises/05_ticket_v2/15_outro/src/lib.rs:27:5 [INFO] [stdout] | [INFO] [stdout] 15 | #[derive(Debug, PartialEq, Clone)] [INFO] [stdout] | ----- in this derive macro expansion [INFO] [stdout] ... [INFO] [stdout] 27 | pub status: Status, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ the trait `Clone` is not implemented for `Status` [INFO] [stdout] | [INFO] [stdout] help: consider annotating `Status` with `#[derive(Clone)]` [INFO] [stdout] --> exercises/05_ticket_v2/15_outro/src/status.rs:4:1 [INFO] [stdout] | [INFO] [stdout] 4 + #[derive(Clone)] [INFO] [stdout] 5 | pub enum Status { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling references_in_memory v0.1.0 (/opt/rustwide/workdir/exercises/03_ticket_v1/10_references_in_memory) [INFO] [stdout] Some errors have detailed explanations: E0277, E0369. [INFO] [stdout] [INFO] [stdout] For more information about an error, try `rustc --explain E0277`. [INFO] [stdout] [INFO] [stderr] error: could not compile `outro_04` (lib) due to 9 previous errors [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] warning: fields `title`, `description`, and `status` are never read [INFO] [stdout] --> exercises/03_ticket_v1/10_references_in_memory/src/lib.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 1 | pub struct Ticket { [INFO] [stdout] | ------ fields in this struct [INFO] [stdout] 2 | title: String, [INFO] [stdout] | ^^^^^ [INFO] [stdout] 3 | description: String, [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] 4 | status: String, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `speed` is never used [INFO] [stdout] --> exercises/02_basic_calculator/04_panics/src/lib.rs:3:4 [INFO] [stdout] | [INFO] [stdout] 3 | fn speed(start: u32, end: u32, time_elapsed: u32) -> u32 { [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::thread` [INFO] [stdout] --> exercises/07_threads/02_static/src/lib.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | use std::thread; [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `slice` [INFO] [stdout] --> exercises/07_threads/02_static/src/lib.rs:6:12 [INFO] [stdout] | [INFO] [stdout] 6 | pub fn sum(slice: &'static [i32]) -> i32 { [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_slice` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "3235aa9823f5b446e40b849477d800f1925ceecaf149d6a8b4d5f87643100570", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3235aa9823f5b446e40b849477d800f1925ceecaf149d6a8b4d5f87643100570", kill_on_drop: false }` [INFO] [stdout] 3235aa9823f5b446e40b849477d800f1925ceecaf149d6a8b4d5f87643100570