[INFO] fetching crate ocaml-sys 0.26.0...
[INFO] testing ocaml-sys-0.26.0 against 1.100.0-beta.1+cargoflags=--release for beta-release-1.100-2
[INFO] extracting crate ocaml-sys 0.26.0 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate ocaml-sys 0.26.0
[INFO] finished tweaking crates.io crate ocaml-sys 0.26.0
[INFO] tweaked toml for crates.io crate ocaml-sys 0.26.0 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate ocaml-sys 0.26.0 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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.100.0-beta.1" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 4 packages to highest compatible versions
[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-2-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 4d4707bc1f384ea2935e2d8a60ec2846baf0696dd3577e291cfcd24e9c7d9eb4
[INFO] running `Command { std: "docker" "start" "4d4707bc1f384ea2935e2d8a60ec2846baf0696dd3577e291cfcd24e9c7d9eb4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4d4707bc1f384ea2935e2d8a60ec2846baf0696dd3577e291cfcd24e9c7d9eb4", 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" "4d4707bc1f384ea2935e2d8a60ec2846baf0696dd3577e291cfcd24e9c7d9eb4" "/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" "4d4707bc1f384ea2935e2d8a60ec2846baf0696dd3577e291cfcd24e9c7d9eb4", 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" "4d4707bc1f384ea2935e2d8a60ec2846baf0696dd3577e291cfcd24e9c7d9eb4" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "build" "--frozen" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stderr]    Compiling cty v0.2.2
[INFO] [stderr]    Compiling ocaml-sys v0.26.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated method `cc::Build::static_flag`: cc only creates static libraries, setting this does nothing
[INFO] [stdout]    --> build.rs:156:10
[INFO] [stdout]     |
[INFO] [stdout] 156 |         .static_flag(true)
[INFO] [stdout]     |          ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: failed to run custom build command for `ocaml-sys v0.26.0 (/opt/rustwide/workdir)`
[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/ocaml-sys/53bfe0287840e01f/out/build_script_build` (exit status: 101)
[INFO] [stderr]   --- stdout
[INFO] [stderr]   cargo:rerun-if-file-changed=sys/ocaml-sys.c
[INFO] [stderr]   cargo:rerun-if-env-changed=OCAMLOPT
[INFO] [stderr]   cargo:rerun-if-env-changed=OCAML_VERSION
[INFO] [stderr]   cargo:rerun-if-env-changed=OCAML_WHERE_PATH
[INFO] [stderr]   cargo:rerun-if-env-changed=OPAM_SWITCH_PREFIX
[INFO] [stderr] 
[INFO] [stderr]   --- stderr
[INFO] [stderr] 
[INFO] [stderr]   thread 'main' (83) panicked at build.rs:167:11:
[INFO] [stderr]   called `Result::unwrap()` on an `Err` value: Os { code: 2, kind: NotFound, message: "No such file or directory" }
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x561b55a78a21 - <<std[617be2ca0a6fd877]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[a373ad73a504971]::fmt::Display>::fmt
[INFO] [stderr]      1:     0x561b55a8b53a - core[a373ad73a504971]::fmt::write
[INFO] [stderr]      2:     0x561b55a7ccec - <std[617be2ca0a6fd877]::sys::stdio::unix::Stderr as core[a373ad73a504971]::io::write::Write>::write_fmt
[INFO] [stderr]      3:     0x561b55a566c6 - std[617be2ca0a6fd877]::panicking::default_hook::{closure#0}
[INFO] [stderr]      4:     0x561b55a73101 - std[617be2ca0a6fd877]::panicking::default_hook
[INFO] [stderr]      5:     0x561b55a732bb - std[617be2ca0a6fd877]::panicking::panic_with_hook
[INFO] [stderr]      6:     0x561b55a56772 - std[617be2ca0a6fd877]::panicking::panic_handler::{closure#0}
[INFO] [stderr]      7:     0x561b55a4f3a9 - std[617be2ca0a6fd877]::sys::backtrace::__rust_end_short_backtrace::<std[617be2ca0a6fd877]::panicking::panic_handler::{closure#0}, !>
[INFO] [stderr]      8:     0x561b55a5704d - __rustc[ea4f61d10b84890b]::rust_begin_unwind
[INFO] [stderr]      9:     0x561b55a8bcac - core[a373ad73a504971]::panicking::panic_fmt
[INFO] [stderr]     10:     0x561b55a8ba82 - core[a373ad73a504971]::result::unwrap_failed
[INFO] [stderr]     11:     0x561b559ba3ec - build_script_build[4017bc91d5634ac3]::main
[INFO] [stderr]     12:     0x561b559bbd73 - <fn() as core[a373ad73a504971]::ops::function::FnOnce<()>>::call_once
[INFO] [stderr]     13:     0x561b559b7e1e - std[617be2ca0a6fd877]::sys::backtrace::__rust_begin_short_backtrace::<fn(), ()>
[INFO] [stderr]     14:     0x561b559b7e49 - std[617be2ca0a6fd877]::rt::lang_start::<()>::{closure#0}
[INFO] [stderr]     15:     0x561b55a72078 - std[617be2ca0a6fd877]::rt::lang_start_internal
[INFO] [stderr]     16:     0x561b559b7971 - std[617be2ca0a6fd877]::rt::lang_start::<()>
[INFO] [stderr]     17:     0x561b559bbe35 - main
[INFO] [stderr]     18:     0x7cd4ebb68601 - <unknown>
[INFO] [stderr]     19:     0x7cd4ebb68718 - __libc_start_main
[INFO] [stderr]     20:     0x561b559b7415 - _start
[INFO] [stderr]     21:                0x0 - <unknown>
[INFO] running `Command { std: "docker" "inspect" "4d4707bc1f384ea2935e2d8a60ec2846baf0696dd3577e291cfcd24e9c7d9eb4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4d4707bc1f384ea2935e2d8a60ec2846baf0696dd3577e291cfcd24e9c7d9eb4", kill_on_drop: false }`
[INFO] [stdout] 4d4707bc1f384ea2935e2d8a60ec2846baf0696dd3577e291cfcd24e9c7d9eb4
