[INFO] fetching crate k2f_markdown 0.3.2...
[INFO] testing k2f_markdown-0.3.2 against 1.99.0-beta.8+cargoflags=--release for beta-release-1.100-2
[INFO] extracting crate k2f_markdown 0.3.2 into /workspace/builds/worker-5-tc1/source
[INFO] started tweaking crates.io crate k2f_markdown 0.3.2
[INFO] finished tweaking crates.io crate k2f_markdown 0.3.2
[INFO] tweaked toml for crates.io crate k2f_markdown 0.3.2 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate k2f_markdown 0.3.2 on toolchain 1.99.0-beta.8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate k2f_markdown 0.3.2 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" "+1.99.0-beta.8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded k2f_core v0.3.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] d379a51de19d2cde3f8b39b02cc6978c0c640b2cf0bd5ed7415c2fa49a732bbd
[INFO] running `Command { std: "docker" "start" "d379a51de19d2cde3f8b39b02cc6978c0c640b2cf0bd5ed7415c2fa49a732bbd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d379a51de19d2cde3f8b39b02cc6978c0c640b2cf0bd5ed7415c2fa49a732bbd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "d379a51de19d2cde3f8b39b02cc6978c0c640b2cf0bd5ed7415c2fa49a732bbd" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d379a51de19d2cde3f8b39b02cc6978c0c640b2cf0bd5ed7415c2fa49a732bbd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "d379a51de19d2cde3f8b39b02cc6978c0c640b2cf0bd5ed7415c2fa49a732bbd" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "build" "--frozen" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde_json v1.0.151
[INFO] [stderr]    Compiling k2f_core v0.3.2
[INFO] [stderr]    Compiling tinyvec v1.13.3
[INFO] [stderr]    Compiling syn v3.0.6
[INFO] [stderr]    Compiling syn v2.0.119
[INFO] [stderr]    Compiling crypto-common v0.1.7
[INFO] [stderr]    Compiling block-buffer v0.10.4
[INFO] [stderr]    Compiling digest v0.10.7
[INFO] [stderr] error: failed to run custom build command for `k2f_core v0.3.2`
[INFO] [stderr] note: To improve backtraces for build dependencies, set the CARGO_PROFILE_RELEASE_BUILD_OVERRIDE_DEBUG=true environment variable to enable debug information generation.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/release/build/k2f_core-98fad08fe6f609dc/build-script-build` (exit status: 101)
[INFO] [stderr]   --- stdout
[INFO] [stderr]   cargo:rerun-if-env-changed=K2F_ENGINE_COMMIT_SHA
[INFO] [stderr]   cargo:rerun-if-changed=.git/HEAD
[INFO] [stderr] 
[INFO] [stderr]   --- stderr
[INFO] [stderr] 
[INFO] [stderr]   thread 'main' (140) panicked at /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/k2f_core-0.3.2/build.rs:13:21:
[INFO] [stderr]   release build requires K2F_ENGINE_COMMIT_SHA or a git checkout; got UNKNOWN
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x606debe26fe1 - <<std[70759c8f55707aa4]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[df12db4294e9bfd3]::fmt::Display>::fmt
[INFO] [stderr]      1:     0x606debe37eda - core[df12db4294e9bfd3]::fmt::write
[INFO] [stderr]      2:     0x606debe2ac8c - <std[70759c8f55707aa4]::sys::stdio::unix::Stderr as core[df12db4294e9bfd3]::io::write::Write>::write_fmt
[INFO] [stderr]      3:     0x606debe0a5c6 - std[70759c8f55707aa4]::panicking::default_hook::{closure#0}
[INFO] [stderr]      4:     0x606debe22f01 - std[70759c8f55707aa4]::panicking::default_hook
[INFO] [stderr]      5:     0x606debe230bb - std[70759c8f55707aa4]::panicking::panic_with_hook
[INFO] [stderr]      6:     0x606debe0a6a4 - std[70759c8f55707aa4]::panicking::panic_handler::{closure#0}
[INFO] [stderr]      7:     0x606debe03579 - std[70759c8f55707aa4]::sys::backtrace::__rust_end_short_backtrace::<std[70759c8f55707aa4]::panicking::panic_handler::{closure#0}, !>
[INFO] [stderr]      8:     0x606debe0ae6d - __rustc[8fa7c3cbc660c2b3]::rust_begin_unwind
[INFO] [stderr]      9:     0x606debe3860c - core[df12db4294e9bfd3]::panicking::panic_fmt
[INFO] [stderr]     10:     0x606debdf5685 - build_script_build[b378582b78c96e9f]::main::{closure#1}::{closure#0}
[INFO] [stderr]     11:     0x606debdf3ec4 - <core[df12db4294e9bfd3]::option::Option<alloc[2182bb758b4b3781]::string::String>>::unwrap_or_else::<build_script_build[b378582b78c96e9f]::main::{closure#1}::{closure#0}>
[INFO] [stderr]     12:     0x606debdf5703 - build_script_build[b378582b78c96e9f]::main::{closure#1}
[INFO] [stderr]     13:     0x606debdf3f30 - <core[df12db4294e9bfd3]::option::Option<alloc[2182bb758b4b3781]::string::String>>::unwrap_or_else::<build_script_build[b378582b78c96e9f]::main::{closure#1}>
[INFO] [stderr]     14:     0x606debdf5830 - build_script_build[b378582b78c96e9f]::main
[INFO] [stderr]     15:     0x606debdf8183 - <fn() as core[df12db4294e9bfd3]::ops::function::FnOnce<()>>::call_once
[INFO] [stderr]     16:     0x606debdf4f56 - std[70759c8f55707aa4]::sys::backtrace::__rust_begin_short_backtrace::<fn(), ()>
[INFO] [stderr]     17:     0x606debdf5649 - std[70759c8f55707aa4]::rt::lang_start::<()>::{closure#0}
[INFO] [stderr]     18:     0x606debe22339 - std[70759c8f55707aa4]::rt::lang_start_internal
[INFO] [stderr]     19:     0x606debdf4741 - std[70759c8f55707aa4]::rt::lang_start::<()>
[INFO] [stderr]     20:     0x606debdf82e5 - main
[INFO] [stderr]     21:     0x7780f6868601 - <unknown>
[INFO] [stderr]     22:     0x7780f6868718 - __libc_start_main
[INFO] [stderr]     23:     0x606debdf3cf5 - _start
[INFO] [stderr]     24:                0x0 - <unknown>
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "d379a51de19d2cde3f8b39b02cc6978c0c640b2cf0bd5ed7415c2fa49a732bbd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d379a51de19d2cde3f8b39b02cc6978c0c640b2cf0bd5ed7415c2fa49a732bbd", kill_on_drop: false }`
[INFO] [stdout] d379a51de19d2cde3f8b39b02cc6978c0c640b2cf0bd5ed7415c2fa49a732bbd
