[INFO] cloning repository https://github.com/ikrelln/ikrelln
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ikrelln/ikrelln" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fikrelln%2Fikrelln", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fikrelln%2Fikrelln'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 939c33aaaa58c373cfde985f997f7e2adf1a3151
[INFO] documenting ikrelln/ikrelln against 1.61.0 for beta-1.62-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fikrelln%2Fikrelln" "/workspace/builds/worker-35/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-35/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ikrelln/ikrelln on toolchain 1.61.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ikrelln/ikrelln
[INFO] finished tweaking git repo https://github.com/ikrelln/ikrelln
[INFO] tweaked toml for git repo https://github.com/ikrelln/ikrelln written to /workspace/builds/worker-35/source/Cargo.toml
[INFO] crate git repo https://github.com/ikrelln/ikrelln already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-35/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-35/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+1.61.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4ff72076448c5e6a7a31393480d641bf377d28de420de00fd19cbe3303fe05de
[INFO] running `Command { std: "docker" "start" "-a" "4ff72076448c5e6a7a31393480d641bf377d28de420de00fd19cbe3303fe05de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4ff72076448c5e6a7a31393480d641bf377d28de420de00fd19cbe3303fe05de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4ff72076448c5e6a7a31393480d641bf377d28de420de00fd19cbe3303fe05de", kill_on_drop: false }`
[INFO] [stdout] 4ff72076448c5e6a7a31393480d641bf377d28de420de00fd19cbe3303fe05de
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-35/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-35/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" "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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+1.61.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 82c4ad829e89c72882714fec6125934102b4f6ee29ca2f4b110e023f6c5375dc
[INFO] running `Command { std: "docker" "start" "-a" "82c4ad829e89c72882714fec6125934102b4f6ee29ca2f4b110e023f6c5375dc", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.48
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[INFO] [stderr]    Compiling autocfg v0.1.2
[INFO] [stderr]    Compiling cc v1.0.29
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[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling byteorder v1.3.1
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[INFO] [stderr]     Checking scopeguard v0.3.3
[INFO] [stderr]     Checking stable_deref_trait v1.1.1
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]     Checking lazycell v1.2.1
[INFO] [stderr]     Checking encoding_index_tests v0.1.4
[INFO] [stderr]    Compiling memchr v2.2.0
[INFO] [stderr]    Compiling arrayvec v0.4.10
[INFO] [stderr]     Checking nodrop v0.1.13
[INFO] [stderr]     Checking memoffset v0.2.1
[INFO] [stderr]    Compiling serde v1.0.91
[INFO] [stderr]     Checking bitflags v1.0.4
[INFO] [stderr]    Compiling pkg-config v0.3.14
[INFO] [stderr]     Checking percent-encoding v1.0.1
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]     Checking fnv v1.0.6
[INFO] [stderr]     Checking rustc-demangle v0.1.13
[INFO] [stderr]     Checking itoa v0.4.3
[INFO] [stderr]    Compiling siphasher v0.2.3
[INFO] [stderr]    Compiling crc32fast v1.1.2
[INFO] [stderr]     Checking quick-error v1.2.2
[INFO] [stderr]    Compiling httparse v1.3.3
[INFO] [stderr]     Checking string v0.1.3
[INFO] [stderr]    Compiling ryu v0.2.7
[INFO] [stderr]    Compiling regex v1.1.0
[INFO] [stderr]    Compiling openssl v0.10.19
[INFO] [stderr]     Checking indexmap v1.0.2
[INFO] [stderr]     Checking ucd-util v0.1.3
[INFO] [stderr]     Checking try-lock v0.2.2
[INFO] [stderr]     Checking utf8-ranges v1.0.2
[INFO] [stderr]    Compiling num-traits v0.2.6
[INFO] [stderr]     Checking linked-hash-map v0.4.2
[INFO] [stderr]    Compiling native-tls v0.2.2
[INFO] [stderr]     Checking arc-swap v0.3.7
[INFO] [stderr]     Checking openssl-probe v0.1.2
[INFO] [stderr]    Compiling num-integer v0.1.39
[INFO] [stderr]     Checking dtoa v0.4.3
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[INFO] [stderr]     Checking adler32 v1.0.3
[INFO] [stderr]    Compiling pq-sys v0.4.6
[INFO] [stderr]     Checking untrusted v0.6.2
[INFO] [stderr]     Checking version_check v0.1.5
[INFO] [stderr]     Checking unicode-width v0.1.5
[INFO] [stderr]    Compiling unicode-segmentation v1.2.1
[INFO] [stderr]     Checking safemem v0.3.0
[INFO] [stderr]     Checking vec_map v0.8.1
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking termcolor v1.0.4
[INFO] [stderr]    Compiling ikrelln v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking sha1 v0.6.0
[INFO] [stderr]     Checking unreachable v1.0.0
[INFO] [stderr]    Compiling unicase v1.4.2
[INFO] [stderr]     Checking unicode-bidi v0.3.4
[INFO] [stderr]    Compiling v_escape v0.7.2
[INFO] [stderr]    Compiling unicase v2.2.0
[INFO] [stderr]     Checking foreign-types v0.3.2
[INFO] [stderr]    Compiling actix-web v0.7.19
[INFO] [stderr]    Compiling rand_pcg v0.1.1
[INFO] [stderr]    Compiling parking_lot_core v0.4.0
[INFO] [stderr]     Checking owning_ref v0.4.0
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking rand_jitter v0.1.3
[INFO] [stderr]     Checking encoding-index-korean v1.20141219.5
[INFO] [stderr]     Checking encoding-index-japanese v1.20141219.5
[INFO] [stderr]     Checking encoding-index-singlebyte v1.20141219.5
[INFO] [stderr]     Checking encoding-index-simpchinese v1.20141219.5
[INFO] [stderr]     Checking encoding-index-tradchinese v1.20141219.5
[INFO] [stderr]     Checking smallvec v0.6.8
[INFO] [stderr]     Checking log v0.4.6
[INFO] [stderr]     Checking crossbeam-utils v0.6.5
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking humantime v1.2.0
[INFO] [stderr]     Checking regex-syntax v0.6.5
[INFO] [stderr]    Compiling rand_chacha v0.1.1
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[INFO] [stderr]    Compiling backtrace v0.3.13
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]     Checking lru-cache v0.1.1
[INFO] [stderr]     Checking lock_api v0.1.5
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]     Checking fern v0.5.8
[INFO] [stderr]     Checking unicode-normalization v0.1.8
[INFO] [stderr]     Checking crossbeam-channel v0.3.8
[INFO] [stderr]     Checking encoding v0.2.33
[INFO] [stderr]     Checking tokio-executor v0.1.6
[INFO] [stderr]     Checking tokio-sync v0.1.1
[INFO] [stderr]     Checking want v0.0.6
[INFO] [stderr]     Checking tower-service v0.1.0
[INFO] [stderr]     Checking idna v0.1.5
[INFO] [stderr]     Checking tokio-timer v0.2.10
[INFO] [stderr]     Checking tokio-current-thread v0.1.4
[INFO] [stderr]    Compiling backtrace-sys v0.1.28
[INFO] [stderr]    Compiling miniz-sys v0.1.11
[INFO] [stderr]    Compiling brotli-sys v0.3.2
[INFO] [stderr]    Compiling ring v0.13.5
[INFO] [stderr]    Compiling openssl-sys v0.9.44
[INFO] [stderr]     Checking crossbeam-epoch v0.7.1
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[INFO] [stderr]    Compiling phf_shared v0.7.24
[INFO] [stderr]     Checking iovec v0.1.2
[INFO] [stderr]     Checking rand_os v0.1.2
[INFO] [stderr]     Checking num_cpus v1.9.0
[INFO] [stderr]     Checking net2 v0.2.33
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]     Checking rand v0.5.6
[INFO] [stderr]     Checking socket2 v0.3.8
[INFO] [stderr]     Checking hostname v0.1.5
[INFO] [stderr]     Checking signal-hook v0.1.7
[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]     Checking crossbeam-deque v0.6.3
[INFO] [stderr]     Checking phf v0.7.24
[INFO] [stderr]     Checking mime v0.3.13
[INFO] [stderr]    Compiling nom v4.2.0
[INFO] [stderr]     Checking futures-cpupool v0.1.8
[INFO] [stderr]    Compiling quote v0.6.11
[INFO] [stderr]     Checking mio v0.6.16
[INFO] [stderr]     Checking resolv-conf v0.6.2
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking bytes v0.4.11
[INFO] [stderr]     Checking aho-corasick v0.6.9
[INFO] [stderr]     Checking base64 v0.10.1
[INFO] [stderr]     Checking base64 v0.9.3
[INFO] [stderr]     Checking libflate v0.1.20
[INFO] [stderr] error: failed to run custom build command for `ikrelln v0.3.0 (/opt/rustwide/workdir)`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/ikrelln-288d281ae29cc4e9/build-script-build` (exit status: 101)
[INFO] [stderr]   --- stderr
[INFO] [stderr]   thread 'main' panicked at 'called `Result::unwrap()` on an `Err` value: Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" }', build.rs:88:58
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x560f759e12ed - std::backtrace_rs::backtrace::libunwind::trace::h22893a5306c091b4
[INFO] [stderr]                                  at /rustc/fe5b13d681f25ee6474be29d748c65adcd91f69e/library/std/src/../../backtrace/src/backtrace/libunwind.rs:93:5
[INFO] [stderr]      1:     0x560f759e12ed - std::backtrace_rs::backtrace::trace_unsynchronized::h29c3bc6f9e91819d
[INFO] [stderr]                                  at /rustc/fe5b13d681f25ee6474be29d748c65adcd91f69e/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stderr]      2:     0x560f759e12ed - std::sys_common::backtrace::_print_fmt::he497d8a0ec903793
[INFO] [stderr]                                  at /rustc/fe5b13d681f25ee6474be29d748c65adcd91f69e/library/std/src/sys_common/backtrace.rs:66:5
[INFO] [stderr]      3:     0x560f759e12ed - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h9c2a9d2774d81873
[INFO] [stderr]                                  at /rustc/fe5b13d681f25ee6474be29d748c65adcd91f69e/library/std/src/sys_common/backtrace.rs:45:22
[INFO] [stderr]      4:     0x560f759fea2c - core::fmt::write::hba4337c43d992f49
[INFO] [stderr]                                  at /rustc/fe5b13d681f25ee6474be29d748c65adcd91f69e/library/core/src/fmt/mod.rs:1194:17
[INFO] [stderr]      5:     0x560f759de9e1 - std::io::Write::write_fmt::heb73de6e02cfabed
[INFO] [stderr]                                  at /rustc/fe5b13d681f25ee6474be29d748c65adcd91f69e/library/std/src/io/mod.rs:1655:15
[INFO] [stderr]      6:     0x560f759e2a95 - std::sys_common::backtrace::_print::h63c8b24acdd8e8ce
[INFO] [stderr]                                  at /rustc/fe5b13d681f25ee6474be29d748c65adcd91f69e/library/std/src/sys_common/backtrace.rs:48:5
[INFO] [stderr]      7:     0x560f759e2a95 - std::sys_common::backtrace::print::h426700d6240cdcc2
[INFO] [stderr]                                  at /rustc/fe5b13d681f25ee6474be29d748c65adcd91f69e/library/std/src/sys_common/backtrace.rs:35:9
[INFO] [stderr]      8:     0x560f759e2a95 - std::panicking::default_hook::{{closure}}::hc9a76eed0b18f82b
[INFO] [stderr]                                  at /rustc/fe5b13d681f25ee6474be29d748c65adcd91f69e/library/std/src/panicking.rs:295:22
[INFO] [stderr]      9:     0x560f759e2749 - std::panicking::default_hook::h2e88d02087fae196
[INFO] [stderr]                                  at /rustc/fe5b13d681f25ee6474be29d748c65adcd91f69e/library/std/src/panicking.rs:314:9
[INFO] [stderr]     10:     0x560f759e2fe2 - std::panicking::rust_panic_with_hook::habfdcc2e90f9fd4c
[INFO] [stderr]                                  at /rustc/fe5b13d681f25ee6474be29d748c65adcd91f69e/library/std/src/panicking.rs:698:17
[INFO] [stderr]     11:     0x560f759e2ec7 - std::panicking::begin_panic_handler::{{closure}}::he054b2a83a51d2cd
[INFO] [stderr]                                  at /rustc/fe5b13d681f25ee6474be29d748c65adcd91f69e/library/std/src/panicking.rs:588:13
[INFO] [stderr]     12:     0x560f759e17a4 - std::sys_common::backtrace::__rust_end_short_backtrace::ha48b94ab49b30915
[INFO] [stderr]                                  at /rustc/fe5b13d681f25ee6474be29d748c65adcd91f69e/library/std/src/sys_common/backtrace.rs:138:18
[INFO] [stderr]     13:     0x560f759e2bf9 - rust_begin_unwind
[INFO] [stderr]                                  at /rustc/fe5b13d681f25ee6474be29d748c65adcd91f69e/library/std/src/panicking.rs:584:5
[INFO] [stderr]     14:     0x560f759bb3a3 - core::panicking::panic_fmt::h366d3a309ae17c94
[INFO] [stderr]                                  at /rustc/fe5b13d681f25ee6474be29d748c65adcd91f69e/library/core/src/panicking.rs:143:14
[INFO] [stderr]     15:     0x560f759bb433 - core::result::unwrap_failed::hddd78f4658ac7d0f
[INFO] [stderr]                                  at /rustc/fe5b13d681f25ee6474be29d748c65adcd91f69e/library/core/src/result.rs:1785:5
[INFO] [stderr]     16:     0x560f759befe0 - core::result::Result<T,E>::unwrap::he87b64cfcd5569e3
[INFO] [stderr]                                  at /rustc/fe5b13d681f25ee6474be29d748c65adcd91f69e/library/core/src/result.rs:1078:23
[INFO] [stderr]     17:     0x560f759c290e - build_script_build::main::hfca5ef597002602e
[INFO] [stderr]                                  at /opt/rustwide/workdir/build.rs:88:24
[INFO] [stderr]     18:     0x560f759c43eb - core::ops::function::FnOnce::call_once::he2f9af2fbf564aa1
[INFO] [stderr]                                  at /rustc/fe5b13d681f25ee6474be29d748c65adcd91f69e/library/core/src/ops/function.rs:227:5
[INFO] [stderr]     19:     0x560f759c662e - std::sys_common::backtrace::__rust_begin_short_backtrace::h274660e64443c758
[INFO] [stderr]                                  at /rustc/fe5b13d681f25ee6474be29d748c65adcd91f69e/library/std/src/sys_common/backtrace.rs:122:18
[INFO] [stderr]     20:     0x560f759c2d31 - std::rt::lang_start::{{closure}}::h49ee12061c479040
[INFO] [stderr]                                  at /rustc/fe5b13d681f25ee6474be29d748c65adcd91f69e/library/std/src/rt.rs:145:18
[INFO] [stderr]     21:     0x560f759dbc7e - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::had4f69b3aefb47a8
[INFO] [stderr]                                  at /rustc/fe5b13d681f25ee6474be29d748c65adcd91f69e/library/core/src/ops/function.rs:259:13
[INFO] [stderr]     22:     0x560f759dbc7e - std::panicking::try::do_call::hf2ad5355fcafe775
[INFO] [stderr]                                  at /rustc/fe5b13d681f25ee6474be29d748c65adcd91f69e/library/std/src/panicking.rs:492:40
[INFO] [stderr]     23:     0x560f759dbc7e - std::panicking::try::h0a63ac363423e61e
[INFO] [stderr]                                  at /rustc/fe5b13d681f25ee6474be29d748c65adcd91f69e/library/std/src/panicking.rs:456:19
[INFO] [stderr]     24:     0x560f759dbc7e - std::panic::catch_unwind::h18088edcecb8693a
[INFO] [stderr]                                  at /rustc/fe5b13d681f25ee6474be29d748c65adcd91f69e/library/std/src/panic.rs:137:14
[INFO] [stderr]     25:     0x560f759dbc7e - std::rt::lang_start_internal::{{closure}}::ha7dad166dc711761
[INFO] [stderr]                                  at /rustc/fe5b13d681f25ee6474be29d748c65adcd91f69e/library/std/src/rt.rs:128:48
[INFO] [stderr]     26:     0x560f759dbc7e - std::panicking::try::do_call::hda0c61bf3a57d6e6
[INFO] [stderr]                                  at /rustc/fe5b13d681f25ee6474be29d748c65adcd91f69e/library/std/src/panicking.rs:492:40
[INFO] [stderr]     27:     0x560f759dbc7e - std::panicking::try::hbc940e68560040a9
[INFO] [stderr]                                  at /rustc/fe5b13d681f25ee6474be29d748c65adcd91f69e/library/std/src/panicking.rs:456:19
[INFO] [stderr]     28:     0x560f759dbc7e - std::panic::catch_unwind::haed0df2aeb3fa368
[INFO] [stderr]                                  at /rustc/fe5b13d681f25ee6474be29d748c65adcd91f69e/library/std/src/panic.rs:137:14
[INFO] [stderr]     29:     0x560f759dbc7e - std::rt::lang_start_internal::h9c06694362b5b80c
[INFO] [stderr]                                  at /rustc/fe5b13d681f25ee6474be29d748c65adcd91f69e/library/std/src/rt.rs:128:20
[INFO] [stderr]     30:     0x560f759c2d00 - std::rt::lang_start::h5f4d8b759bec1352
[INFO] [stderr]                                  at /rustc/fe5b13d681f25ee6474be29d748c65adcd91f69e/library/std/src/rt.rs:144:17
[INFO] [stderr]     31:     0x560f759c2b2c - main
[INFO] [stderr]     32:     0x7f64cb0fc0b3 - __libc_start_main
[INFO] [stderr]     33:     0x560f759bb59e - _start
[INFO] [stderr]     34:                0x0 - <unknown>
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "82c4ad829e89c72882714fec6125934102b4f6ee29ca2f4b110e023f6c5375dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "82c4ad829e89c72882714fec6125934102b4f6ee29ca2f4b110e023f6c5375dc", kill_on_drop: false }`
[INFO] [stdout] 82c4ad829e89c72882714fec6125934102b4f6ee29ca2f4b110e023f6c5375dc