[INFO] crate lbfgsb-sys 0.1.0 is already in cache
[INFO] extracting crate lbfgsb-sys 0.1.0 into work/ex/beta-1.37-6/sources/1.36.0/reg/lbfgsb-sys/0.1.0
[INFO] extracting crate lbfgsb-sys 0.1.0 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/lbfgsb-sys/0.1.0
[INFO] validating manifest of lbfgsb-sys-0.1.0 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 lbfgsb-sys-0.1.0 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 lbfgsb-sys-0.1.0
[INFO] finished frobbing lbfgsb-sys-0.1.0
[INFO] frobbed toml for lbfgsb-sys-0.1.0 written to work/ex/beta-1.37-6/sources/1.36.0/reg/lbfgsb-sys/0.1.0/Cargo.toml
[INFO] started frobbing lbfgsb-sys-0.1.0
[INFO] finished frobbing lbfgsb-sys-0.1.0
[INFO] frobbed toml for lbfgsb-sys-0.1.0 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/lbfgsb-sys/0.1.0/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] [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" "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] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing lbfgsb-sys-0.1.0 against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-2/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/lbfgsb-sys/0.1.0:/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" "+beta-2019-07-23" "build" "--frozen"`
[INFO] [stdout] d8b1e8cb0863a60e2474107e7b058f4acfa7442a893c7c5e06c074d3e10bb6d0
[INFO] running `"docker" "start" "-a" "d8b1e8cb0863a60e2474107e7b058f4acfa7442a893c7c5e06c074d3e10bb6d0"`
[INFO] [stderr]    Compiling lbfgsb-sys v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] error: failed to run custom build command for `lbfgsb-sys v0.1.0 (/opt/crater/workdir)`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/crater/target/debug/build/lbfgsb-sys-9171a1dbb79d8ab7/build-script-build` (exit code: 101)
[INFO] [stderr] --- stdout
[INFO] [stderr] Running: "make" "dylib" "OUTPUT=/opt/crater/target/debug/build/lbfgsb-sys-79d23b874f5e378b/out" "OSNAME=Linux"
[INFO] [stderr] dynamic linking selected
[INFO] [stderr] Compiling
[INFO] [stderr] /opt/crater/target/debug/build/lbfgsb-sys-79d23b874f5e378b/out
[INFO] [stderr] gfortran lbfgsb.f -O3 -Wall -fexceptions -g -Wno-uninitialized -c -fPIC -o /opt/crater/target/debug/build/lbfgsb-sys-79d23b874f5e378b/out/lbfgsb.o
[INFO] [stderr] Makefile:34: recipe for target 'dylib' failed
[INFO] [stderr] 
[INFO] [stderr] --- stderr
[INFO] [stderr] make: gfortran: Command not found
[INFO] [stderr] make: *** [dylib] Error 127
[INFO] [stderr] thread 'main' panicked at '`"make" "dylib" "OUTPUT=/opt/crater/target/debug/build/lbfgsb-sys-79d23b874f5e378b/out" "OSNAME=Linux"` failed: exit code: 2', build.rs:37:13
[INFO] [stderr] stack backtrace:
[INFO] [stderr]    0:     0x564d86ccafdb - backtrace::backtrace::libunwind::trace::h5dfa5d4c5feed6dc
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.29/src/backtrace/libunwind.rs:88
[INFO] [stderr]    1:     0x564d86ccafdb - backtrace::backtrace::trace_unsynchronized::hb731fe64f3fa469f
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.29/src/backtrace/mod.rs:66
[INFO] [stderr]    2:     0x564d86ccafdb - std::sys_common::backtrace::_print::hf4fd45fe7ae4a250
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:47
[INFO] [stderr]    3:     0x564d86ccafdb - std::sys_common::backtrace::print::h31646c3786c57441
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:36
[INFO] [stderr]    4:     0x564d86ccafdb - std::panicking::default_hook::{{closure}}::hda785e768c746ae7
[INFO] [stderr]                                at src/libstd/panicking.rs:200
[INFO] [stderr]    5:     0x564d86ccacb7 - std::panicking::default_hook::h0c4b76f338614ef1
[INFO] [stderr]                                at src/libstd/panicking.rs:214
[INFO] [stderr]    6:     0x564d86ccb6a0 - std::panicking::rust_panic_with_hook::h096dff2cb12b67ce
[INFO] [stderr]                                at src/libstd/panicking.rs:477
[INFO] [stderr]    7:     0x564d86ccb222 - std::panicking::continue_panic_fmt::h0046167652be99a6
[INFO] [stderr]                                at src/libstd/panicking.rs:384
[INFO] [stderr]    8:     0x564d86ccb16f - std::panicking::begin_panic_fmt::he65a2e8ff19d8ae0
[INFO] [stderr]                                at src/libstd/panicking.rs:339
[INFO] [stderr]    9:     0x564d86cbd48f - build_script_build::run::h6462c3acf94fb3e9
[INFO] [stderr]                                at /opt/crater/workdir/build.rs:37
[INFO] [stderr]   10:     0x564d86cbcfb5 - build_script_build::main::hea46a0c2608a5cb0
[INFO] [stderr]                                at /opt/crater/workdir/build.rs:23
[INFO] [stderr]   11:     0x564d86cb5c40 - std::rt::lang_start::{{closure}}::h6c5a60348644cc7b
[INFO] [stderr]                                at /rustc/61d1607e0f6a18bb4897d6f9b10abeac9e11eb8e/src/libstd/rt.rs:64
[INFO] [stderr]   12:     0x564d86ccb0f3 - std::rt::lang_start_internal::{{closure}}::h055e1fdc5578d418
[INFO] [stderr]                                at src/libstd/rt.rs:49
[INFO] [stderr]   13:     0x564d86ccb0f3 - std::panicking::try::do_call::h480cafa68c9928b4
[INFO] [stderr]                                at src/libstd/panicking.rs:296
[INFO] [stderr]   14:     0x564d86cd12ba - __rust_maybe_catch_panic
[INFO] [stderr]                                at src/libpanic_unwind/lib.rs:82
[INFO] [stderr]   15:     0x564d86ccbbad - std::panicking::try::he0549d0299de204a
[INFO] [stderr]                                at src/libstd/panicking.rs:275
[INFO] [stderr]   16:     0x564d86ccbbad - std::panic::catch_unwind::h422dc2db98f03517
[INFO] [stderr]                                at src/libstd/panic.rs:394
[INFO] [stderr]   17:     0x564d86ccbbad - std::rt::lang_start_internal::h121de03325a3f900
[INFO] [stderr]                                at src/libstd/rt.rs:48
[INFO] [stderr]   18:     0x564d86cb5c19 - std::rt::lang_start::h989e6ebfad481f34
[INFO] [stderr]                                at /rustc/61d1607e0f6a18bb4897d6f9b10abeac9e11eb8e/src/libstd/rt.rs:64
[INFO] [stderr]   19:     0x564d86cbd68a - main
[INFO] [stderr]   20:     0x7f579e02b2e1 - __libc_start_main
[INFO] [stderr]   21:     0x564d86cb0eea - _start
[INFO] [stderr]   22:                0x0 - <unknown>
[INFO] [stderr] 
[INFO] running `"docker" "inspect" "d8b1e8cb0863a60e2474107e7b058f4acfa7442a893c7c5e06c074d3e10bb6d0"`
[INFO] running `"docker" "rm" "-f" "d8b1e8cb0863a60e2474107e7b058f4acfa7442a893c7c5e06c074d3e10bb6d0"`
[INFO] [stdout] d8b1e8cb0863a60e2474107e7b058f4acfa7442a893c7c5e06c074d3e10bb6d0