[INFO] cloning repository https://github.com/19h/ul2
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/19h/ul2" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F19h%2Ful2", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F19h%2Ful2'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] dabd0ddb1d5a727d01ae78bca62c74b9dafe84c0
[INFO] checking 19h/ul2 against try#94e848735e78b58442e0b82e9c60f8f430840389 for pr-149218
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F19h%2Ful2" "/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/19h/ul2
[INFO] finished tweaking git repo https://github.com/19h/ul2
[INFO] tweaked toml for git repo https://github.com/19h/ul2 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/19h/ul2 on toolchain 94e848735e78b58442e0b82e9c60f8f430840389
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+94e848735e78b58442e0b82e9c60f8f430840389" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/19h/ul2 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" "+94e848735e78b58442e0b82e9c60f8f430840389" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: unused manifest key: examples
[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_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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+94e848735e78b58442e0b82e9c60f8f430840389" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] aabcf183ad00d9a41e78b62d6cd09760fa064aca96943a9943335e9d66857c99
[INFO] running `Command { std: "docker" "start" "-a" "aabcf183ad00d9a41e78b62d6cd09760fa064aca96943a9943335e9d66857c99", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "aabcf183ad00d9a41e78b62d6cd09760fa064aca96943a9943335e9d66857c99", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aabcf183ad00d9a41e78b62d6cd09760fa064aca96943a9943335e9d66857c99", kill_on_drop: false }`
[INFO] [stdout] aabcf183ad00d9a41e78b62d6cd09760fa064aca96943a9943335e9d66857c99
[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=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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+94e848735e78b58442e0b82e9c60f8f430840389" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 929999ef8347fed6eea8a05bdce6d1302a7397b0e591109f4523e9dad88535e2
[INFO] running `Command { std: "docker" "start" "-a" "929999ef8347fed6eea8a05bdce6d1302a7397b0e591109f4523e9dad88535e2", kill_on_drop: false }`
[INFO] [stderr] warning: unused manifest key: examples
[INFO] [stderr]    Compiling ul v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: failed to run custom build command for `ul v0.1.0 (/opt/rustwide/workdir)`
[INFO] [stderr] note: To improve backtraces for build dependencies, set the CARGO_PROFILE_DEV_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/debug/build/ul-d3a179f857450b5c/build-script-build` (exit status: 101)
[INFO] [stderr]   --- stderr
[INFO] [stderr] 
[INFO] [stderr]   thread 'main' (37) panicked at build.rs:159:5:
[INFO] [stderr]   Could not find Ultralight libraries. Please set UL_DIR environment variable to the directory containing the Ultralight libraries.
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x563f6d06dfe2 - std::backtrace_rs::backtrace::libunwind::trace::h80e4eadf14c66f26
[INFO] [stderr]                                  at /rustc/94e848735e78b58442e0b82e9c60f8f430840389/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stderr]      1:     0x563f6d06dfe2 - std::backtrace_rs::backtrace::trace_unsynchronized::he46a0c19ed38f7c7
[INFO] [stderr]                                  at /rustc/94e848735e78b58442e0b82e9c60f8f430840389/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stderr]      2:     0x563f6d06dfe2 - std::sys::backtrace::_print_fmt::hc7a43b2421a0b6ba
[INFO] [stderr]                                  at /rustc/94e848735e78b58442e0b82e9c60f8f430840389/library/std/src/sys/backtrace.rs:66:9
[INFO] [stderr]      3:     0x563f6d06dfe2 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::h58cb999c48fcda8e
[INFO] [stderr]                                  at /rustc/94e848735e78b58442e0b82e9c60f8f430840389/library/std/src/sys/backtrace.rs:39:26
[INFO] [stderr]      4:     0x563f6d07cde7 - core::fmt::rt::Argument::fmt::h5811bb9db91c4bdf
[INFO] [stderr]                                  at /rustc/94e848735e78b58442e0b82e9c60f8f430840389/library/core/src/fmt/rt.rs:152:76
[INFO] [stderr]      5:     0x563f6d07cde7 - core::fmt::write::hbe5d6514e7994ce4
[INFO] [stderr]      6:     0x563f6d04c596 - std::io::default_write_fmt::h9d9abe87a9458259
[INFO] [stderr]                                  at /rustc/94e848735e78b58442e0b82e9c60f8f430840389/library/std/src/io/mod.rs:639:11
[INFO] [stderr]      7:     0x563f6d04c596 - std::io::Write::write_fmt::h959cd774853fbaf4
[INFO] [stderr]                                  at /rustc/94e848735e78b58442e0b82e9c60f8f430840389/library/std/src/io/mod.rs:1994:13
[INFO] [stderr]      8:     0x563f6d053021 - std::sys::backtrace::BacktraceLock::print::h1c1878c0edb74dcf
[INFO] [stderr]                                  at /rustc/94e848735e78b58442e0b82e9c60f8f430840389/library/std/src/sys/backtrace.rs:42:9
[INFO] [stderr]      9:     0x563f6d053021 - std::panicking::default_hook::{{closure}}::h03783dc55b1c4639
[INFO] [stderr]                                  at /rustc/94e848735e78b58442e0b82e9c60f8f430840389/library/std/src/panicking.rs:293:27
[INFO] [stderr]     10:     0x563f6d052e46 - std::panicking::default_hook::h9f69de0df6286f92
[INFO] [stderr]                                  at /rustc/94e848735e78b58442e0b82e9c60f8f430840389/library/std/src/panicking.rs:320:9
[INFO] [stderr]     11:     0x563f6d05352b - std::panicking::panic_with_hook::h5cd3d9dc1294b80b
[INFO] [stderr]                                  at /rustc/94e848735e78b58442e0b82e9c60f8f430840389/library/std/src/panicking.rs:826:13
[INFO] [stderr]     12:     0x563f6d0533da - std::panicking::panic_handler::{{closure}}::h17cea3611bf99675
[INFO] [stderr]                                  at /rustc/94e848735e78b58442e0b82e9c60f8f430840389/library/std/src/panicking.rs:692:13
[INFO] [stderr]     13:     0x563f6d051909 - std::sys::backtrace::__rust_end_short_backtrace::h665c00b7404bec19
[INFO] [stderr]                                  at /rustc/94e848735e78b58442e0b82e9c60f8f430840389/library/std/src/sys/backtrace.rs:174:18
[INFO] [stderr]     14:     0x563f6d04165d - __rustc[a72051c83d0cfd7e]::rust_begin_unwind
[INFO] [stderr]                                  at /rustc/94e848735e78b58442e0b82e9c60f8f430840389/library/std/src/panicking.rs:690:5
[INFO] [stderr]     15:     0x563f6d07fb5c - core::panicking::panic_fmt::h428a28ace6f8a6f4
[INFO] [stderr]                                  at /rustc/94e848735e78b58442e0b82e9c60f8f430840389/library/core/src/panicking.rs:80:14
[INFO] [stderr]     16:     0x563f6d03f7ad - build_script_build[db2d6e294bb596a7]::find_ultralight_lib_dir
[INFO] [stderr]     17:     0x563f6d03fc4c - build_script_build[db2d6e294bb596a7]::main
[INFO] [stderr]     18:     0x563f6d0412a3 - <fn() as core[c9d721919c7c7d9e]::ops::function::FnOnce<()>>::call_once
[INFO] [stderr]     19:     0x563f6d03dda6 - std[eba09e545cc47dd2]::sys::backtrace::__rust_begin_short_backtrace::<fn(), ()>
[INFO] [stderr]     20:     0x563f6d03dfd9 - std[eba09e545cc47dd2]::rt::lang_start::<()>::{closure#0}
[INFO] [stderr]     21:     0x563f6d04da7a - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::h363f97d521c47ff5
[INFO] [stderr]                                  at /rustc/94e848735e78b58442e0b82e9c60f8f430840389/library/core/src/ops/function.rs:287:21
[INFO] [stderr]     22:     0x563f6d04da7a - std::panicking::catch_unwind::do_call::h4a2dbbc2240abc17
[INFO] [stderr]                                  at /rustc/94e848735e78b58442e0b82e9c60f8f430840389/library/std/src/panicking.rs:582:40
[INFO] [stderr]     23:     0x563f6d04da7a - std::panicking::catch_unwind::he31676af1f997eb7
[INFO] [stderr]                                  at /rustc/94e848735e78b58442e0b82e9c60f8f430840389/library/std/src/panicking.rs:545:19
[INFO] [stderr]     24:     0x563f6d04da7a - std::panic::catch_unwind::he8ca5fc72329d194
[INFO] [stderr]                                  at /rustc/94e848735e78b58442e0b82e9c60f8f430840389/library/std/src/panic.rs:359:14
[INFO] [stderr]     25:     0x563f6d04da7a - std::rt::lang_start_internal::{{closure}}::hac4394c065bb209d
[INFO] [stderr]                                  at /rustc/94e848735e78b58442e0b82e9c60f8f430840389/library/std/src/rt.rs:175:24
[INFO] [stderr]     26:     0x563f6d04da7a - std::panicking::catch_unwind::do_call::h38be5134ec9fde56
[INFO] [stderr]                                  at /rustc/94e848735e78b58442e0b82e9c60f8f430840389/library/std/src/panicking.rs:582:40
[INFO] [stderr]     27:     0x563f6d04da7a - std::panicking::catch_unwind::h2c7827a3ea4afc22
[INFO] [stderr]                                  at /rustc/94e848735e78b58442e0b82e9c60f8f430840389/library/std/src/panicking.rs:545:19
[INFO] [stderr]     28:     0x563f6d04da7a - std::panic::catch_unwind::h428ccb0beeec507c
[INFO] [stderr]                                  at /rustc/94e848735e78b58442e0b82e9c60f8f430840389/library/std/src/panic.rs:359:14
[INFO] [stderr]     29:     0x563f6d04da7a - std::rt::lang_start_internal::h067ee1eadeb6999d
[INFO] [stderr]                                  at /rustc/94e848735e78b58442e0b82e9c60f8f430840389/library/std/src/rt.rs:171:5
[INFO] [stderr]     30:     0x563f6d03dd21 - std[eba09e545cc47dd2]::rt::lang_start::<()>
[INFO] [stderr]     31:     0x563f6d041335 - main
[INFO] [stderr]     32:     0x7d2911b331ca - <unknown>
[INFO] [stderr]     33:     0x7d2911b3328b - __libc_start_main
[INFO] [stderr]     34:     0x563f6d03d445 - _start
[INFO] [stderr]     35:                0x0 - <unknown>
[INFO] running `Command { std: "docker" "inspect" "929999ef8347fed6eea8a05bdce6d1302a7397b0e591109f4523e9dad88535e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "929999ef8347fed6eea8a05bdce6d1302a7397b0e591109f4523e9dad88535e2", kill_on_drop: false }`
[INFO] [stdout] 929999ef8347fed6eea8a05bdce6d1302a7397b0e591109f4523e9dad88535e2
