[INFO] fetching crate copt-solver 0.1.1...
[INFO] testing copt-solver-0.1.1 against 1.100.0-beta.1+cargoflags=--release for beta-release-1.100-2
[INFO] extracting crate copt-solver 0.1.1 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate copt-solver 0.1.1
[INFO] finished tweaking crates.io crate copt-solver 0.1.1
[INFO] tweaked toml for crates.io crate copt-solver 0.1.1 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate copt-solver 0.1.1 on toolchain 1.100.0-beta.1
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.100.0-beta.1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate copt-solver 0.1.1 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" "+1.100.0-beta.1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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] 0bf3ab21f6d9e9468d7da59a9ad1a975b3d92849a89d0fdb0153fde3105c4dc6
[INFO] running `Command { std: "docker" "start" "0bf3ab21f6d9e9468d7da59a9ad1a975b3d92849a89d0fdb0153fde3105c4dc6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0bf3ab21f6d9e9468d7da59a9ad1a975b3d92849a89d0fdb0153fde3105c4dc6", 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" "0bf3ab21f6d9e9468d7da59a9ad1a975b3d92849a89d0fdb0153fde3105c4dc6" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0bf3ab21f6d9e9468d7da59a9ad1a975b3d92849a89d0fdb0153fde3105c4dc6", 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" "0bf3ab21f6d9e9468d7da59a9ad1a975b3d92849a89d0fdb0153fde3105c4dc6" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "build" "--frozen" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stderr]    Compiling copt-sys v0.1.0
[INFO] [stderr] error: failed to run custom build command for `copt-sys v0.1.0`
[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/copt-sys/96f659c5db3ff6be/out/build_script_build` (exit status: 101)
[INFO] [stderr]   --- stderr
[INFO] [stderr] 
[INFO] [stderr]   thread 'main' (70) panicked at /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/copt-sys-0.1.0/build.rs:6:35:
[INFO] [stderr]   failed to retrieve the value of COPT_HOME: NotPresent
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x64473233c811 - <<std[617be2ca0a6fd877]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[a373ad73a504971]::fmt::Display>::fmt
[INFO] [stderr]      1:     0x64473234d08a - core[a373ad73a504971]::fmt::write
[INFO] [stderr]      2:     0x64473233fddc - <std[617be2ca0a6fd877]::sys::stdio::unix::Stderr as core[a373ad73a504971]::io::write::Write>::write_fmt
[INFO] [stderr]      3:     0x6447323264b6 - std[617be2ca0a6fd877]::panicking::default_hook::{closure#0}
[INFO] [stderr]      4:     0x644732338de1 - std[617be2ca0a6fd877]::panicking::default_hook
[INFO] [stderr]      5:     0x644732338f9b - std[617be2ca0a6fd877]::panicking::panic_with_hook
[INFO] [stderr]      6:     0x644732326562 - std[617be2ca0a6fd877]::panicking::panic_handler::{closure#0}
[INFO] [stderr]      7:     0x64473231f639 - std[617be2ca0a6fd877]::sys::backtrace::__rust_end_short_backtrace::<std[617be2ca0a6fd877]::panicking::panic_handler::{closure#0}, !>
[INFO] [stderr]      8:     0x644732326d2d - __rustc[ea4f61d10b84890b]::rust_begin_unwind
[INFO] [stderr]      9:     0x64473234d7bc - core[a373ad73a504971]::panicking::panic_fmt
[INFO] [stderr]     10:     0x64473234d592 - core[a373ad73a504971]::result::unwrap_failed
[INFO] [stderr]     11:     0x644732314e84 - <core[a373ad73a504971]::result::Result<alloc[2e1b2a31b91974c5]::string::String, std[617be2ca0a6fd877]::env::VarError>>::expect
[INFO] [stderr]     12:     0x644732314d43 - build_script_build[b312c91820231861]::copt_home
[INFO] [stderr]     13:     0x644732314ae1 - build_script_build[b312c91820231861]::main
[INFO] [stderr]     14:     0x64473231549b - <fn() as core[a373ad73a504971]::ops::function::FnOnce<()>>::call_once
[INFO] [stderr]     15:     0x644732314976 - std[617be2ca0a6fd877]::sys::backtrace::__rust_begin_short_backtrace::<fn(), ()>
[INFO] [stderr]     16:     0x644732314a99 - std[617be2ca0a6fd877]::rt::lang_start::<()>::{closure#0}
[INFO] [stderr]     17:     0x644732338588 - std[617be2ca0a6fd877]::rt::lang_start_internal
[INFO] [stderr]     18:     0x6447323147f1 - std[617be2ca0a6fd877]::rt::lang_start::<()>
[INFO] [stderr]     19:     0x6447323154d5 - main
[INFO] [stderr]     20:     0x7e0c9d204601 - <unknown>
[INFO] [stderr]     21:     0x7e0c9d204718 - __libc_start_main
[INFO] [stderr]     22:     0x644732314565 - _start
[INFO] [stderr]     23:                0x0 - <unknown>
[INFO] running `Command { std: "docker" "inspect" "0bf3ab21f6d9e9468d7da59a9ad1a975b3d92849a89d0fdb0153fde3105c4dc6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0bf3ab21f6d9e9468d7da59a9ad1a975b3d92849a89d0fdb0153fde3105c4dc6", kill_on_drop: false }`
[INFO] [stdout] 0bf3ab21f6d9e9468d7da59a9ad1a975b3d92849a89d0fdb0153fde3105c4dc6
