[INFO] fetching crate matlab-sys 0.3.1...
[INFO] testing matlab-sys-0.3.1 against 1.100.0-beta.1+cargoflags=--release for beta-release-1.100-2
[INFO] extracting crate matlab-sys 0.3.1 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate matlab-sys 0.3.1
[INFO] finished tweaking crates.io crate matlab-sys 0.3.1
[INFO] tweaked toml for crates.io crate matlab-sys 0.3.1 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate matlab-sys 0.3.1 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] 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] 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-7-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 73b75bdcf62c99833e830f2155402951331ab1040b9b2fb88dca73ba4f433087
[INFO] running `Command { std: "docker" "start" "73b75bdcf62c99833e830f2155402951331ab1040b9b2fb88dca73ba4f433087", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "73b75bdcf62c99833e830f2155402951331ab1040b9b2fb88dca73ba4f433087", 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" "73b75bdcf62c99833e830f2155402951331ab1040b9b2fb88dca73ba4f433087" "/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" "73b75bdcf62c99833e830f2155402951331ab1040b9b2fb88dca73ba4f433087", 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" "73b75bdcf62c99833e830f2155402951331ab1040b9b2fb88dca73ba4f433087" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "build" "--frozen" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stderr]    Compiling matlab-sys v0.3.1 (/opt/rustwide/workdir)
[INFO] [stderr] error: failed to run custom build command for `matlab-sys v0.3.1 (/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/matlab-sys/33714b7ec9fe257d/out/build_script_build` (exit status: 101)
[INFO] [stderr]   --- stderr
[INFO] [stderr] 
[INFO] [stderr]   thread 'main' (83) panicked at build.rs:83:9:
[INFO] [stderr]   Matlab installation to link against not found. Specify the path to the installation to link against in the environment variable 'MATLABPATH' or make sure Matlab is callable from the command line.
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x59dc7341e8d1 - <<std[617be2ca0a6fd877]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[a373ad73a504971]::fmt::Display>::fmt
[INFO] [stderr]      1:     0x59dc7342f99a - core[a373ad73a504971]::fmt::write
[INFO] [stderr]      2:     0x59dc7342221c - <std[617be2ca0a6fd877]::sys::stdio::unix::Stderr as core[a373ad73a504971]::io::write::Write>::write_fmt
[INFO] [stderr]      3:     0x59dc73401c26 - std[617be2ca0a6fd877]::panicking::default_hook::{closure#0}
[INFO] [stderr]      4:     0x59dc7341a5b1 - std[617be2ca0a6fd877]::panicking::default_hook
[INFO] [stderr]      5:     0x59dc7341a76b - std[617be2ca0a6fd877]::panicking::panic_with_hook
[INFO] [stderr]      6:     0x59dc73401d04 - std[617be2ca0a6fd877]::panicking::panic_handler::{closure#0}
[INFO] [stderr]      7:     0x59dc733fabb9 - std[617be2ca0a6fd877]::sys::backtrace::__rust_end_short_backtrace::<std[617be2ca0a6fd877]::panicking::panic_handler::{closure#0}, !>
[INFO] [stderr]      8:     0x59dc7340249d - __rustc[ea4f61d10b84890b]::rust_begin_unwind
[INFO] [stderr]      9:     0x59dc734300cc - core[a373ad73a504971]::panicking::panic_fmt
[INFO] [stderr]     10:     0x59dc733ec7dd - build_script_build[d6358d38315ed09c]::get_matlab_path
[INFO] [stderr]     11:     0x59dc733ecb07 - build_script_build[d6358d38315ed09c]::main
[INFO] [stderr]     12:     0x59dc733ef723 - <fn() as core[a373ad73a504971]::ops::function::FnOnce<()>>::call_once
[INFO] [stderr]     13:     0x59dc733ebbe6 - std[617be2ca0a6fd877]::sys::backtrace::__rust_begin_short_backtrace::<fn(), ()>
[INFO] [stderr]     14:     0x59dc733ec2d9 - std[617be2ca0a6fd877]::rt::lang_start::<()>::{closure#0}
[INFO] [stderr]     15:     0x59dc73419a28 - std[617be2ca0a6fd877]::rt::lang_start_internal
[INFO] [stderr]     16:     0x59dc733eb421 - std[617be2ca0a6fd877]::rt::lang_start::<()>
[INFO] [stderr]     17:     0x59dc733ef8b5 - main
[INFO] [stderr]     18:     0x75ccdc2c8601 - <unknown>
[INFO] [stderr]     19:     0x75ccdc2c8718 - __libc_start_main
[INFO] [stderr]     20:     0x59dc733eaa75 - _start
[INFO] [stderr]     21:                0x0 - <unknown>
[INFO] running `Command { std: "docker" "inspect" "73b75bdcf62c99833e830f2155402951331ab1040b9b2fb88dca73ba4f433087", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "73b75bdcf62c99833e830f2155402951331ab1040b9b2fb88dca73ba4f433087", kill_on_drop: false }`
[INFO] [stdout] 73b75bdcf62c99833e830f2155402951331ab1040b9b2fb88dca73ba4f433087
