[INFO] crate lpn 0.1.1 is already in cache
[INFO] extracting crate lpn 0.1.1 into work/ex/beta-1.37-6/sources/1.36.0/reg/lpn/0.1.1
[INFO] extracting crate lpn 0.1.1 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/lpn/0.1.1
[INFO] validating manifest of lpn-0.1.1 on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of lpn-0.1.1 on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing lpn-0.1.1
[INFO] finished frobbing lpn-0.1.1
[INFO] frobbed toml for lpn-0.1.1 written to work/ex/beta-1.37-6/sources/1.36.0/reg/lpn/0.1.1/Cargo.toml
[INFO] started frobbing lpn-0.1.1
[INFO] finished frobbing lpn-0.1.1
[INFO] frobbed toml for lpn-0.1.1 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/lpn/0.1.1/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing lpn-0.1.1 against 1.36.0 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-0/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/lpn/0.1.1:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.36.0" "build" "--frozen"`
[INFO] [stdout] 984c4bc575eb964baf47eef41421cb425735936ec162ada0fc73b0ed666895aa
[INFO] running `"docker" "start" "-a" "984c4bc575eb964baf47eef41421cb425735936ec162ada0fc73b0ed666895aa"`
[INFO] [stderr]    Compiling m4ri-rust v0.1.0
[INFO] [stderr]    Compiling binomial-iter v0.1.0
[INFO] [stderr]    Compiling num-rational v0.2.2
[INFO] [stderr]    Compiling vob v1.3.2
[INFO] [stderr]    Compiling factorial v0.1.1
[INFO] [stderr] error: failed to run custom build command for `m4ri-rust v0.1.0`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/crater/target/debug/build/m4ri-rust-9c524079088e1ab2/build-script-build` (exit code: 101)
[INFO] [stderr] --- stdout
[INFO] [stderr] Making M4RI
[INFO] [stderr] PWD: "/opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/m4ri-rust-0.1.0"
[INFO] [stderr] cargo:warning=Building m4ri lib
[INFO] [stderr] Configuring build!
[INFO] [stderr] 
[INFO] [stderr] --- stderr
[INFO] [stderr] autom4te: cannot create autom4te.cache: No such file or directory
[INFO] [stderr] aclocal: error: echo failed with exit status: 1
[INFO] [stderr] autoreconf: aclocal failed with exit status: 1
[INFO] [stderr] thread 'main' panicked at 'Autoconf failed!', /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/m4ri-rust-0.1.0/build.rs:19:13
[INFO] [stderr] stack backtrace:
[INFO] [stderr]    0:     0x564b61c824b3 - std::sys::unix::backtrace::tracing::imp::unwind_backtrace::h6485381528590a55
[INFO] [stderr]                                at src/libstd/sys/unix/backtrace/tracing/gcc_s.rs:39
[INFO] [stderr]    1:     0x564b61c7e12b - std::sys_common::backtrace::_print::h49a82ae9552e35c7
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:71
[INFO] [stderr]    2:     0x564b61c81346 - std::panicking::default_hook::{{closure}}::he20974adbefcc046
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:59
[INFO] [stderr]                                at src/libstd/panicking.rs:197
[INFO] [stderr]    3:     0x564b61c810d9 - std::panicking::default_hook::he4af6af4ac7fef7b
[INFO] [stderr]                                at src/libstd/panicking.rs:211
[INFO] [stderr]    4:     0x564b61c8199f - std::panicking::rust_panic_with_hook::h057ff03eb4c8000f
[INFO] [stderr]                                at src/libstd/panicking.rs:474
[INFO] [stderr]    5:     0x564b61c6d2d3 - std::panicking::begin_panic::h1794f6463b06a0e3
[INFO] [stderr]                                at /rustc/a53f9df32fbb0b5f4382caaad8f1a46f36ea887c/src/libstd/panicking.rs:408
[INFO] [stderr]    6:     0x564b61c73317 - build_script_build::main::h0184d0679d57112f
[INFO] [stderr]                                at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/m4ri-rust-0.1.0/build.rs:19
[INFO] [stderr]    7:     0x564b61c74bbf - std::rt::lang_start::{{closure}}::hac9de5111905df77
[INFO] [stderr]                                at /rustc/a53f9df32fbb0b5f4382caaad8f1a46f36ea887c/src/libstd/rt.rs:64
[INFO] [stderr]    8:     0x564b61c813f2 - std::panicking::try::do_call::hc3d8373a0b215f51
[INFO] [stderr]                                at src/libstd/rt.rs:49
[INFO] [stderr]                                at src/libstd/panicking.rs:293
[INFO] [stderr]    9:     0x564b61c879d9 - __rust_maybe_catch_panic
[INFO] [stderr]                                at src/libpanic_unwind/lib.rs:85
[INFO] [stderr]   10:     0x564b61c81eac - std::rt::lang_start_internal::he5218c8b95d395f2
[INFO] [stderr]                                at src/libstd/panicking.rs:272
[INFO] [stderr]                                at src/libstd/panic.rs:394
[INFO] [stderr]                                at src/libstd/rt.rs:48
[INFO] [stderr]   11:     0x564b61c74b98 - std::rt::lang_start::he2c08a26c9d46a2f
[INFO] [stderr]                                at /rustc/a53f9df32fbb0b5f4382caaad8f1a46f36ea887c/src/libstd/rt.rs:64
[INFO] [stderr]   12:     0x564b61c73699 - main
[INFO] [stderr]   13:     0x7fa6dd9302e0 - __libc_start_main
[INFO] [stderr]   14:     0x564b61c63829 - _start
[INFO] [stderr]   15:                0x0 - <unknown>
[INFO] [stderr] 
[INFO] running `"docker" "inspect" "984c4bc575eb964baf47eef41421cb425735936ec162ada0fc73b0ed666895aa"`
[INFO] running `"docker" "rm" "-f" "984c4bc575eb964baf47eef41421cb425735936ec162ada0fc73b0ed666895aa"`
[INFO] [stdout] 984c4bc575eb964baf47eef41421cb425735936ec162ada0fc73b0ed666895aa