[INFO] crate sass-sys 0.4.8 is already in cache
[INFO] extracting crate sass-sys 0.4.8 into work/ex/pr-60261/sources/master#1891bfa80364eead426517c68de6947b7692e2de/reg/sass-sys/0.4.8
[INFO] extracting crate sass-sys 0.4.8 into work/ex/pr-60261/sources/try#bfdcf6db3afcce5fe4013023cfa8ba359c5d527a/reg/sass-sys/0.4.8
[INFO] validating manifest of sass-sys-0.4.8 on toolchain master#1891bfa80364eead426517c68de6947b7692e2de
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1891bfa80364eead426517c68de6947b7692e2de-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of sass-sys-0.4.8 on toolchain try#bfdcf6db3afcce5fe4013023cfa8ba359c5d527a
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+bfdcf6db3afcce5fe4013023cfa8ba359c5d527a-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing sass-sys-0.4.8
[INFO] finished frobbing sass-sys-0.4.8
[INFO] frobbed toml for sass-sys-0.4.8 written to work/ex/pr-60261/sources/master#1891bfa80364eead426517c68de6947b7692e2de/reg/sass-sys/0.4.8/Cargo.toml
[INFO] started frobbing sass-sys-0.4.8
[INFO] finished frobbing sass-sys-0.4.8
[INFO] frobbed toml for sass-sys-0.4.8 written to work/ex/pr-60261/sources/try#bfdcf6db3afcce5fe4013023cfa8ba359c5d527a/reg/sass-sys/0.4.8/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1891bfa80364eead426517c68de6947b7692e2de-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+bfdcf6db3afcce5fe4013023cfa8ba359c5d527a-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1891bfa80364eead426517c68de6947b7692e2de-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+bfdcf6db3afcce5fe4013023cfa8ba359c5d527a-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking sass-sys-0.4.8 against try#bfdcf6db3afcce5fe4013023cfa8ba359c5d527a for pr-60261
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-60261/worker-5/try#bfdcf6db3afcce5fe4013023cfa8ba359c5d527a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-60261/sources/try#bfdcf6db3afcce5fe4013023cfa8ba359c5d527a/reg/sass-sys/0.4.8:/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=forbid" "-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" "+bfdcf6db3afcce5fe4013023cfa8ba359c5d527a-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] fa79f40541a0aef0d4a9b43705d2207e06daeda10fffcba24003f0dd522f42a1
[INFO] running `"docker" "start" "-a" "fa79f40541a0aef0d4a9b43705d2207e06daeda10fffcba24003f0dd522f42a1"`
[INFO] [stderr]    Compiling sass-sys v0.4.8 (/opt/crater/workdir)
[INFO] [stderr] error: failed to run custom build command for `sass-sys v0.4.8 (/opt/crater/workdir)`
[INFO] [stderr] process didn't exit successfully: `/opt/crater/target/debug/build/sass-sys-4a6a61fbba892f98/build-script-build` (exit code: 101)
[INFO] [stderr] --- stderr
[INFO] [stderr] thread 'main' panicked at 'Build error:
[INFO] [stderr] STDERR:g++: internal compiler error: Killed (program cc1plus)
[INFO] [stderr] Please submit a full bug report,
[INFO] [stderr] with preprocessed source if appropriate.
[INFO] [stderr] See <file:///usr/share/doc/gcc-6/README.Bugs> for instructions.
[INFO] [stderr] make: *** [src/ast.o] Error 4
[INFO] [stderr] make: *** Waiting for unfinished jobs....
[INFO] [stderr] 
[INFO] [stderr] STDOUT:mkdir lib
[INFO] [stderr] cc -Wall -O2 -I /opt/crater/target/debug/build/sass-sys-673425c77b20686f/out/build/include -fPIC -fPIC -c -o src/cencode.o src/cencode.c
[INFO] [stderr] g++ -Wall -O2 -std=c++0x -I /opt/crater/target/debug/build/sass-sys-673425c77b20686f/out/build/include -fPIC -fPIC -c -o src/ast.o src/ast.cpp
[INFO] [stderr] g++ -Wall -O2 -std=c++0x -I /opt/crater/target/debug/build/sass-sys-673425c77b20686f/out/build/include -fPIC -fPIC -c -o src/node.o src/node.cpp
[INFO] [stderr] g++ -Wall -O2 -std=c++0x -I /opt/crater/target/debug/build/sass-sys-673425c77b20686f/out/build/include -fPIC -fPIC -c -o src/context.o src/context.cpp
[INFO] [stderr] g++ -Wall -O2 -std=c++0x -I /opt/crater/target/debug/build/sass-sys-673425c77b20686f/out/build/include -fPIC -fPIC -c -o src/constants.o src/constants.cpp
[INFO] [stderr] g++ -Wall -O2 -std=c++0x -I /opt/crater/target/debug/build/sass-sys-673425c77b20686f/out/build/include -fPIC -fPIC -c -o src/functions.o src/functions.cpp
[INFO] [stderr] g++ -Wall -O2 -std=c++0x -I /opt/crater/target/debug/build/sass-sys-673425c77b20686f/out/build/include -fPIC -fPIC -c -o src/color_maps.o src/color_maps.cpp
[INFO] [stderr] g++ -Wall -O2 -std=c++0x -I /opt/crater/target/debug/build/sass-sys-673425c77b20686f/out/build/include -fPIC -fPIC -c -o src/environment.o src/environment.cpp
[INFO] [stderr] g++ -Wall -O2 -std=c++0x -I /opt/crater/target/debug/build/sass-sys-673425c77b20686f/out/build/include -fPIC -fPIC -c -o src/ast_fwd_decl.o src/ast_fwd_decl.cpp
[INFO] [stderr] g++ -Wall -O2 -std=c++0x -I /opt/crater/target/debug/build/sass-sys-673425c77b20686f/out/build/include -fPIC -fPIC -c -o src/bind.o src/bind.cpp
[INFO] [stderr] g++ -Wall -O2 -std=c++0x -I /opt/crater/target/debug/build/sass-sys-673425c77b20686f/out/build/include -fPIC -fPIC -c -o src/file.o src/file.cpp
[INFO] [stderr] g++ -Wall -O2 -std=c++0x -I /opt/crater/target/debug/build/sass-sys-673425c77b20686f/out/build/include -fPIC -fPIC -c -o src/util.o src/util.cpp
[INFO] [stderr] g++ -Wall -O2 -std=c++0x -I /opt/crater/target/debug/build/sass-sys-673425c77b20686f/out/build/include -fPIC -fPIC -c -o src/json.o src/json.cpp
[INFO] [stderr] g++ -Wall -O2 -std=c++0x -I /opt/crater/target/debug/build/sass-sys-673425c77b20686f/out/build/include -fPIC -fPIC -c -o src/units.o src/units.cpp
[INFO] [stderr] g++ -Wall -O2 -std=c++0x -I /opt/crater/target/debug/build/sass-sys-673425c77b20686f/out/build/include -fPIC -fPIC -c -o src/values.o src/values.cpp
[INFO] [stderr] g++ -Wall -O2 -std=c++0x -I /opt/crater/target/debug/build/sass-sys-673425c77b20686f/out/build/include -fPIC -fPIC -c -o src/plugins.o src/plugins.cpp
[INFO] [stderr] g++ -Wall -O2 -std=c++0x -I /opt/crater/target/debug/build/sass-sys-673425c77b20686f/out/build/include -fPIC -fPIC -c -o src/position.o src/position.cpp
[INFO] [stderr] g++ -Wall -O2 -std=c++0x -I /opt/crater/target/debug/build/sass-sys-673425c77b20686f/out/build/include -fPIC -fPIC -c -o src/lexer.o src/lexer.cpp
[INFO] [stderr] g++ -Wall -O2 -std=c++0x -I /opt/crater/target/debug/build/sass-sys-673425c77b20686f/out/build/include -fPIC -fPIC -c -o src/parser.o src/parser.cpp
[INFO] [stderr] g++ -Wall -O2 -std=c++0x -I /opt/crater/target/debug/build/sass-sys-673425c77b20686f/out/build/include -fPIC -fPIC -c -o src/prelexer.o src/prelexer.cpp
[INFO] [stderr] g++ -Wall -O2 -std=c++0x -I /opt/crater/target/debug/build/sass-sys-673425c77b20686f/out/build/include -fPIC -fPIC -c -o src/eval.o src/eval.cpp
[INFO] [stderr] g++ -Wall -O2 -std=c++0x -I /opt/crater/target/debug/build/sass-sys-673425c77b20686f/out/build/include -fPIC -fPIC -c -o src/expand.o src/expand.cpp
[INFO] [stderr] g++ -Wall -O2 -std=c++0x -I /opt/crater/target/debug/build/sass-sys-673425c77b20686f/out/build/include -fPIC -fPIC -c -o src/listize.o src/listize.cpp
[INFO] [stderr] g++ -Wall -O2 -std=c++0x -I /opt/crater/target/debug/build/sass-sys-673425c77b20686f/out/build/include -fPIC -fPIC -c -o src/cssize.o src/cssize.cpp
[INFO] [stderr] g++ -Wall -O2 -std=c++0x -I /opt/crater/target/debug/build/sass-sys-673425c77b20686f/out/build/include -fPIC -fPIC -c -o src/extend.o src/extend.cpp
[INFO] [stderr] Makefile:249: recipe for target 'src/ast.o' failed
[INFO] [stderr] ', build.rs:81:9
[INFO] [stderr] stack backtrace:
[INFO] [stderr]    0:     0x558eeaf78683 - std::sys::unix::backtrace::tracing::imp::unwind_backtrace::he40e3e73036b0b3f
[INFO] [stderr]                                at src/libstd/sys/unix/backtrace/tracing/gcc_s.rs:39
[INFO] [stderr]    1:     0x558eeaf7439b - std::sys_common::backtrace::_print::h6d6f6242937d4268
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:71
[INFO] [stderr]    2:     0x558eeaf77476 - std::panicking::default_hook::{{closure}}::hd0821dee96f91765
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:59
[INFO] [stderr]                                at src/libstd/panicking.rs:197
[INFO] [stderr]    3:     0x558eeaf77209 - std::panicking::default_hook::h8dc8a77692be60de
[INFO] [stderr]                                at src/libstd/panicking.rs:211
[INFO] [stderr]    4:     0x558eeaf77acf - std::panicking::rust_panic_with_hook::he8c6e40be53e89a5
[INFO] [stderr]                                at src/libstd/panicking.rs:474
[INFO] [stderr]    5:     0x558eeaf77651 - std::panicking::continue_panic_fmt::h24ac15689db01f04
[INFO] [stderr]                                at src/libstd/panicking.rs:381
[INFO] [stderr]    6:     0x558eeaf7759e - std::panicking::begin_panic_fmt::hff8a4f354660ec5a
[INFO] [stderr]                                at src/libstd/panicking.rs:336
[INFO] [stderr]    7:     0x558eeaf27126 - build_script_build::compile::hbbb257d385f43680
[INFO] [stderr]                                at /opt/crater/workdir/build.rs:81
[INFO] [stderr]    8:     0x558eeaf2759d - build_script_build::main::hd6190633d7659080
[INFO] [stderr]                                at /opt/crater/workdir/build.rs:166
[INFO] [stderr]    9:     0x558eeaf292af - std::rt::lang_start::{{closure}}::h7fec43e4e0a2b5c3
[INFO] [stderr]                                at /rustc/bfdcf6db3afcce5fe4013023cfa8ba359c5d527a/src/libstd/rt.rs:64
[INFO] [stderr]   10:     0x558eeaf77522 - std::panicking::try::do_call::h03c9792ab8ffda62
[INFO] [stderr]                                at src/libstd/rt.rs:49
[INFO] [stderr]                                at src/libstd/panicking.rs:293
[INFO] [stderr]   11:     0x558eeaf7f489 - __rust_maybe_catch_panic
[INFO] [stderr]                                at src/libpanic_unwind/lib.rs:85
[INFO] [stderr]   12:     0x558eeaf77fdc - std::rt::lang_start_internal::h0a8566bec8d08064
[INFO] [stderr]                                at src/libstd/panicking.rs:272
[INFO] [stderr]                                at src/libstd/panic.rs:388
[INFO] [stderr]                                at src/libstd/rt.rs:48
[INFO] [stderr]   13:     0x558eeaf29288 - std::rt::lang_start::h85e21aa73899af87
[INFO] [stderr]                                at /rustc/bfdcf6db3afcce5fe4013023cfa8ba359c5d527a/src/libstd/rt.rs:64
[INFO] [stderr]   14:     0x558eeaf275c9 - main
[INFO] [stderr]   15:     0x7f23ece122e0 - __libc_start_main
[INFO] [stderr]   16:     0x558eeaf253e9 - _start
[INFO] [stderr]   17:                0x0 - <unknown>
[INFO] [stderr] 
[INFO] running `"docker" "inspect" "fa79f40541a0aef0d4a9b43705d2207e06daeda10fffcba24003f0dd522f42a1"`
[INFO] running `"docker" "rm" "-f" "fa79f40541a0aef0d4a9b43705d2207e06daeda10fffcba24003f0dd522f42a1"`
[INFO] [stdout] fa79f40541a0aef0d4a9b43705d2207e06daeda10fffcba24003f0dd522f42a1