[INFO] cloning repository https://github.com/JonahHenriksson/fuse
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/JonahHenriksson/fuse" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJonahHenriksson%2Ffuse", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJonahHenriksson%2Ffuse'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] dd8d2778582d50772d24c3a5f393441400eaad5e
[INFO] checking JonahHenriksson/fuse against master#5a45ab9738330fb317d49e3594c2db5248b1e971 for pr-136303
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJonahHenriksson%2Ffuse" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/JonahHenriksson/fuse on toolchain 5a45ab9738330fb317d49e3594c2db5248b1e971
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5a45ab9738330fb317d49e3594c2db5248b1e971" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/JonahHenriksson/fuse
[INFO] finished tweaking git repo https://github.com/JonahHenriksson/fuse
[INFO] tweaked toml for git repo https://github.com/JonahHenriksson/fuse written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/JonahHenriksson/fuse already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5a45ab9738330fb317d49e3594c2db5248b1e971" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded sass-rs v0.2.2
[INFO] [stderr]   Downloaded sass-sys v0.4.22
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/source:/opt/rustwide/workdir:ro,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" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:c80049f3b88b82089a44e0f06d0d6029d44b96b7257e55a1cd63dbc9f4c33334" "/opt/rustwide/cargo-home/bin/cargo" "+5a45ab9738330fb317d49e3594c2db5248b1e971" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2b80b62c70790ca17ada7ecad98295e51b6272143368eedd8f7ee02b9ffbd1de
[INFO] running `Command { std: "docker" "start" "-a" "2b80b62c70790ca17ada7ecad98295e51b6272143368eedd8f7ee02b9ffbd1de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2b80b62c70790ca17ada7ecad98295e51b6272143368eedd8f7ee02b9ffbd1de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2b80b62c70790ca17ada7ecad98295e51b6272143368eedd8f7ee02b9ffbd1de", kill_on_drop: false }`
[INFO] [stdout] 2b80b62c70790ca17ada7ecad98295e51b6272143368eedd8f7ee02b9ffbd1de
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/source:/opt/rustwide/workdir:ro,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" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:c80049f3b88b82089a44e0f06d0d6029d44b96b7257e55a1cd63dbc9f4c33334" "/opt/rustwide/cargo-home/bin/cargo" "+5a45ab9738330fb317d49e3594c2db5248b1e971" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b68e2ba788dc781903b8efc0ee79230d4e74db76d9ea7797d43171f63052d044
[INFO] running `Command { std: "docker" "start" "-a" "b68e2ba788dc781903b8efc0ee79230d4e74db76d9ea7797d43171f63052d044", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.97
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]     Checking bytes v1.0.1
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]     Checking itoa v0.4.7
[INFO] [stderr]    Compiling futures-core v0.3.15
[INFO] [stderr]     Checking pin-project-lite v0.2.6
[INFO] [stderr]    Compiling typenum v1.13.0
[INFO] [stderr]     Checking instant v0.1.9
[INFO] [stderr]     Checking smallvec v1.6.1
[INFO] [stderr]     Checking lock_api v0.4.4
[INFO] [stderr]    Compiling tokio v1.7.1
[INFO] [stderr]     Checking futures-sink v0.3.15
[INFO] [stderr]    Compiling futures-task v0.3.15
[INFO] [stderr]     Checking matches v0.1.8
[INFO] [stderr]    Compiling futures-util v0.3.15
[INFO] [stderr]     Checking once_cell v1.8.0
[INFO] [stderr]    Compiling httparse v1.4.1
[INFO] [stderr]     Checking tinyvec v1.2.0
[INFO] [stderr]     Checking http v0.2.4
[INFO] [stderr]     Checking slab v0.4.3
[INFO] [stderr]     Checking form_urlencoded v1.0.1
[INFO] [stderr]     Checking unicode-bidi v0.3.5
[INFO] [stderr]    Compiling indexmap v1.6.2
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]    Compiling futures-channel v0.3.15
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]     Checking quick-error v1.2.3
[INFO] [stderr]     Checking cpufeatures v0.1.5
[INFO] [stderr]     Checking tracing-core v0.1.18
[INFO] [stderr]     Checking mime v0.3.16
[INFO] [stderr]     Checking hashbrown v0.9.1
[INFO] [stderr]     Checking base64 v0.13.0
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking parking_lot_core v0.8.3
[INFO] [stderr]     Checking mio v0.7.13
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking getrandom v0.1.16
[INFO] [stderr]     Checking parking_lot v0.11.1
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]    Compiling mime_guess v2.0.3
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking tracing v0.1.26
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking input_buffer v0.4.0
[INFO] [stderr]     Checking unicode-normalization v0.1.19
[INFO] [stderr]     Checking rand v0.8.4
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]     Checking remove_dir_all v0.5.3
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]     Checking safemem v0.3.3
[INFO] [stderr]    Compiling sass-sys v0.4.22
[INFO] [stderr]     Checking utf-8 v0.7.6
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking buf_redux v0.8.4
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]     Checking twoway v0.1.8
[INFO] [stderr]     Checking socket2 v0.4.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking humantime v1.3.0
[INFO] [stderr]     Checking httpdate v1.0.1
[INFO] [stderr]     Checking termcolor v1.1.2
[INFO] [stderr]     Checking tower-service v0.3.1
[INFO] [stderr]     Checking futures-io v0.3.15
[INFO] [stderr]     Checking headers-core v0.2.0
[INFO] [stderr]     Checking http-body v0.4.2
[INFO] [stderr]     Checking tempfile v3.2.0
[INFO] [stderr]     Checking block-buffer v0.9.0
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]     Checking sha-1 v0.9.6
[INFO] [stderr]     Checking idna v0.2.3
[INFO] [stderr]     Checking headers v0.3.4
[INFO] [stderr]     Checking multipart v0.17.1
[INFO] [stderr] error: could not compile `regex-syntax` (lib)
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/5a45ab9738330fb317d49e3594c2db5248b1e971/bin/rustc --crate-name regex_syntax --edition=2018 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/regex-syntax-0.6.25/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type lib --emit=dep-info,metadata -C embed-bitcode=no -C debuginfo=2 --cfg 'feature="default"' --cfg 'feature="unicode"' --cfg 'feature="unicode-age"' --cfg 'feature="unicode-bool"' --cfg 'feature="unicode-case"' --cfg 'feature="unicode-gencat"' --cfg 'feature="unicode-perl"' --cfg 'feature="unicode-script"' --cfg 'feature="unicode-segment"' --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values("default", "unicode", "unicode-age", "unicode-bool", "unicode-case", "unicode-gencat", "unicode-perl", "unicode-script", "unicode-segment"))' -C metadata=11bea59c52f014bd -C extra-filename=-723d0d27d256b4a8 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --cap-lints allow --cap-lints=forbid` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `futures-util` (lib)
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/5a45ab9738330fb317d49e3594c2db5248b1e971/bin/rustc --crate-name futures_util --edition=2018 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/futures-util-0.3.15/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type lib --emit=dep-info,metadata -C embed-bitcode=no -C debuginfo=2 --cfg 'feature="alloc"' --cfg 'feature="async-await"' --cfg 'feature="futures-sink"' --cfg 'feature="sink"' --cfg 'feature="slab"' --cfg 'feature="std"' --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values("alloc", "async-await", "async-await-macro", "bilock", "cfg-target-has-atomic", "channel", "compat", "default", "futures-channel", "futures-io", "futures-macro", "futures-sink", "futures_01", "io", "io-compat", "memchr", "proc-macro-hack", "proc-macro-nested", "read-initializer", "sink", "slab", "std", "tokio-io", "unstable", "write-all-vectored"))' -C metadata=10775380ff74d3fe -C extra-filename=-1cbb8da6310358ca --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern futures_core=/opt/rustwide/target/debug/deps/libfutures_core-7c4cdf600e2d4c5b.rmeta --extern futures_sink=/opt/rustwide/target/debug/deps/libfutures_sink-bda8e1110937d400.rmeta --extern futures_task=/opt/rustwide/target/debug/deps/libfutures_task-b5e43713b0f3f37e.rmeta --extern pin_project_lite=/opt/rustwide/target/debug/deps/libpin_project_lite-38d9e33e31603d43.rmeta --extern pin_utils=/opt/rustwide/target/debug/deps/libpin_utils-db1de871cd8706a6.rmeta --extern slab=/opt/rustwide/target/debug/deps/libslab-4743e33f3a129edb.rmeta --cap-lints allow --cap-lints=forbid --cfg fn_like_proc_macro` (signal: 9, SIGKILL: kill)
[INFO] [stderr] error: could not compile `serde` (lib)
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/5a45ab9738330fb317d49e3594c2db5248b1e971/bin/rustc --crate-name serde --edition=2015 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/serde-1.0.126/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type lib --emit=dep-info,metadata -C embed-bitcode=no -C debuginfo=2 --cfg 'feature="default"' --cfg 'feature="std"' --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values("alloc", "default", "derive", "rc", "serde_derive", "std", "unstable"))' -C metadata=0d6aa73a87b2d943 -C extra-filename=-efc91c8d2e095bbe --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --cap-lints allow --cap-lints=forbid --cfg ops_bound --cfg core_reverse --cfg de_boxed_c_str --cfg de_boxed_path --cfg de_rc_dst --cfg core_duration --cfg integer128 --cfg range_inclusive --cfg num_nonzero --cfg serde_derive --cfg core_try_from --cfg num_nonzero_signed --cfg systemtime_checked_add --cfg std_atomic64 --cfg std_atomic` (signal: 9, SIGKILL: kill)
[INFO] [stderr] error: could not compile `syn` (lib)
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/5a45ab9738330fb317d49e3594c2db5248b1e971/bin/rustc --crate-name syn --edition=2018 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/syn-1.0.73/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no --cfg 'feature="clone-impls"' --cfg 'feature="default"' --cfg 'feature="derive"' --cfg 'feature="full"' --cfg 'feature="parsing"' --cfg 'feature="printing"' --cfg 'feature="proc-macro"' --cfg 'feature="quote"' --cfg 'feature="visit-mut"' --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values("clone-impls", "default", "derive", "extra-traits", "fold", "full", "parsing", "printing", "proc-macro", "quote", "test", "visit", "visit-mut"))' -C metadata=c774697612ffeabd -C extra-filename=-21be89f40af93230 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-225787193ada5c8f.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-c5fa94b9b5dfcc26.rmeta --extern unicode_xid=/opt/rustwide/target/debug/deps/libunicode_xid-9a308e948d49b175.rmeta --cap-lints allow --cap-lints=forbid` (signal: 9, SIGKILL: kill)
[INFO] [stderr] error: could not compile `idna` (lib)
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/5a45ab9738330fb317d49e3594c2db5248b1e971/bin/rustc --crate-name idna --edition=2018 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/idna-0.2.3/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type lib --emit=dep-info,metadata -C embed-bitcode=no -C debuginfo=2 --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values())' -C metadata=398f4bde404c9452 -C extra-filename=-ee3866e8e08e0c08 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern matches=/opt/rustwide/target/debug/deps/libmatches-4ae506e59b11bae2.rmeta --extern unicode_bidi=/opt/rustwide/target/debug/deps/libunicode_bidi-131f8d054d054c77.rmeta --extern unicode_normalization=/opt/rustwide/target/debug/deps/libunicode_normalization-7fc431cf79b234ba.rmeta --cap-lints allow --cap-lints=forbid` (signal: 9, SIGKILL: kill)
[INFO] [stderr] error: failed to run custom build command for `sass-sys v0.4.22`
[INFO] [stderr] note: To improve backtraces for build dependencies, set the CARGO_PROFILE_DEV_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/debug/build/sass-sys-af64cdfb482af55d/build-script-build` (exit status: 101)
[INFO] [stderr]   --- stdout
[INFO] [stderr]   cargo:rerun-if-env-changed=LIBSASS_NO_PKG_CONFIG
[INFO] [stderr]   cargo:rerun-if-env-changed=PKG_CONFIG
[INFO] [stderr]   cargo:rerun-if-env-changed=LIBSASS_STATIC
[INFO] [stderr]   cargo:rerun-if-env-changed=LIBSASS_DYNAMIC
[INFO] [stderr]   cargo:rerun-if-env-changed=PKG_CONFIG_ALL_STATIC
[INFO] [stderr]   cargo:rerun-if-env-changed=PKG_CONFIG_ALL_DYNAMIC
[INFO] [stderr]   cargo:rerun-if-env-changed=PKG_CONFIG_PATH_x86_64-unknown-linux-gnu
[INFO] [stderr]   cargo:rerun-if-env-changed=PKG_CONFIG_PATH_x86_64_unknown_linux_gnu
[INFO] [stderr]   cargo:rerun-if-env-changed=HOST_PKG_CONFIG_PATH
[INFO] [stderr]   cargo:rerun-if-env-changed=PKG_CONFIG_PATH
[INFO] [stderr]   cargo:rerun-if-env-changed=PKG_CONFIG_LIBDIR_x86_64-unknown-linux-gnu
[INFO] [stderr]   cargo:rerun-if-env-changed=PKG_CONFIG_LIBDIR_x86_64_unknown_linux_gnu
[INFO] [stderr]   cargo:rerun-if-env-changed=HOST_PKG_CONFIG_LIBDIR
[INFO] [stderr]   cargo:rerun-if-env-changed=PKG_CONFIG_LIBDIR
[INFO] [stderr]   cargo:rerun-if-env-changed=PKG_CONFIG_SYSROOT_DIR_x86_64-unknown-linux-gnu
[INFO] [stderr]   cargo:rerun-if-env-changed=PKG_CONFIG_SYSROOT_DIR_x86_64_unknown_linux_gnu
[INFO] [stderr]   cargo:rerun-if-env-changed=HOST_PKG_CONFIG_SYSROOT_DIR
[INFO] [stderr]   cargo:rerun-if-env-changed=PKG_CONFIG_SYSROOT_DIR
[INFO] [stderr] 
[INFO] [stderr]   --- stderr
[INFO] [stderr] 
[INFO] [stderr]   thread 'main' panicked at /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/sass-sys-0.4.22/build.rs:107:9:
[INFO] [stderr]   Build error:
[INFO] [stderr]   STDERR:g++: fatal error: Killed signal terminated program cc1plus
[INFO] [stderr]   compilation terminated.
[INFO] [stderr]   make: *** [Makefile:228: src/fn_maps.o] Error 1
[INFO] [stderr]   make: *** Waiting for unfinished jobs....
[INFO] [stderr]   g++: fatal error: Killed signal terminated program cc1plus
[INFO] [stderr]   compilation terminated.
[INFO] [stderr]   src/ast_values.cpp: In member function 'virtual size_t Sass::Number::hash() const':
[INFO] [stderr]   src/ast_values.cpp:484:23: warning: loop variable 'numerator' creates a copy from type 'const std::__cxx11::basic_string<char>' [-Wrange-loop-construct]
[INFO] [stderr]     484 |       for (const auto numerator : numerators)
[INFO] [stderr]         |                       ^~~~~~~~~
[INFO] [stderr]   src/ast_values.cpp:484:23: note: use reference type to prevent copying
[INFO] [stderr]     484 |       for (const auto numerator : numerators)
[INFO] [stderr]         |                       ^~~~~~~~~
[INFO] [stderr]         |                       &
[INFO] [stderr]   src/ast_values.cpp:486:23: warning: loop variable 'denominator' creates a copy from type 'const std::__cxx11::basic_string<char>' [-Wrange-loop-construct]
[INFO] [stderr]     486 |       for (const auto denominator : denominators)
[INFO] [stderr]         |                       ^~~~~~~~~~~
[INFO] [stderr]   src/ast_values.cpp:486:23: note: use reference type to prevent copying
[INFO] [stderr]     486 |       for (const auto denominator : denominators)
[INFO] [stderr]         |                       ^~~~~~~~~~~
[INFO] [stderr]         |                       &
[INFO] [stderr]   make: *** [Makefile:228: src/fn_colors.o] Error 1
[INFO] [stderr]   g++: fatal error: Killed signal terminated program cc1plus
[INFO] [stderr]   compilation terminated.
[INFO] [stderr]   make: *** [Makefile:228: src/ast.o] Error 1
[INFO] [stderr]   g++: fatal error: Killed signal terminated program cc1plus
[INFO] [stderr]   compilation terminated.
[INFO] [stderr]   make: *** [Makefile:228: src/ast_supports.o] Error 1
[INFO] [stderr]   g++: fatal error: Killed signal terminated program cc1plus
[INFO] [stderr]   compilation terminated.
[INFO] [stderr]   make: *** [Makefile:228: src/fn_lists.o] Error 1
[INFO] [stderr]   g++: fatal error: Killed signal terminated program cc1plus
[INFO] [stderr]   compilation terminated.
[INFO] [stderr]   make: *** [Makefile:228: src/ast_values.o] Error 1
[INFO] [stderr] 
[INFO] [stderr]   STDOUT:cc -Wall -O2 -I /opt/rustwide/target/debug/build/sass-sys-bde94e46d213f003/out/build/include  -fPIC -c -o src/cencode.o src/cencode.c
[INFO] [stderr]   g++ -Wall -O2 -std=c++11 -I /opt/rustwide/target/debug/build/sass-sys-bde94e46d213f003/out/build/include  -fPIC -c -o src/ast.o src/ast.cpp
[INFO] [stderr]   g++ -Wall -O2 -std=c++11 -I /opt/rustwide/target/debug/build/sass-sys-bde94e46d213f003/out/build/include  -fPIC -c -o src/ast_values.o src/ast_values.cpp
[INFO] [stderr]   g++ -Wall -O2 -std=c++11 -I /opt/rustwide/target/debug/build/sass-sys-bde94e46d213f003/out/build/include  -fPIC -c -o src/ast_supports.o src/ast_supports.cpp
[INFO] [stderr]   g++ -Wall -O2 -std=c++11 -I /opt/rustwide/target/debug/build/sass-sys-bde94e46d213f003/out/build/include  -fPIC -c -o src/ast_sel_cmp.o src/ast_sel_cmp.cpp
[INFO] [stderr]   g++ -Wall -O2 -std=c++11 -I /opt/rustwide/target/debug/build/sass-sys-bde94e46d213f003/out/build/include  -fPIC -c -o src/ast_sel_unify.o src/ast_sel_unify.cpp
[INFO] [stderr]   g++ -Wall -O2 -std=c++11 -I /opt/rustwide/target/debug/build/sass-sys-bde94e46d213f003/out/build/include  -fPIC -c -o src/ast_sel_super.o src/ast_sel_super.cpp
[INFO] [stderr]   g++ -Wall -O2 -std=c++11 -I /opt/rustwide/target/debug/build/sass-sys-bde94e46d213f003/out/build/include  -fPIC -c -o src/ast_sel_weave.o src/ast_sel_weave.cpp
[INFO] [stderr]   g++ -Wall -O2 -std=c++11 -I /opt/rustwide/target/debug/build/sass-sys-bde94e46d213f003/out/build/include  -fPIC -c -o src/ast_selectors.o src/ast_selectors.cpp
[INFO] [stderr]   g++ -Wall -O2 -std=c++11 -I /opt/rustwide/target/debug/build/sass-sys-bde94e46d213f003/out/build/include  -fPIC -c -o src/context.o src/context.cpp
[INFO] [stderr]   g++ -Wall -O2 -std=c++11 -I /opt/rustwide/target/debug/build/sass-sys-bde94e46d213f003/out/build/include  -fPIC -c -o src/constants.o src/constants.cpp
[INFO] [stderr]   g++ -Wall -O2 -std=c++11 -I /opt/rustwide/target/debug/build/sass-sys-bde94e46d213f003/out/build/include  -fPIC -c -o src/fn_utils.o src/fn_utils.cpp
[INFO] [stderr]   g++ -Wall -O2 -std=c++11 -I /opt/rustwide/target/debug/build/sass-sys-bde94e46d213f003/out/build/include  -fPIC -c -o src/fn_miscs.o src/fn_miscs.cpp
[INFO] [stderr]   g++ -Wall -O2 -std=c++11 -I /opt/rustwide/target/debug/build/sass-sys-bde94e46d213f003/out/build/include  -fPIC -c -o src/fn_maps.o src/fn_maps.cpp
[INFO] [stderr]   g++ -Wall -O2 -std=c++11 -I /opt/rustwide/target/debug/build/sass-sys-bde94e46d213f003/out/build/include  -fPIC -c -o src/fn_lists.o src/fn_lists.cpp
[INFO] [stderr]   g++ -Wall -O2 -std=c++11 -I /opt/rustwide/target/debug/build/sass-sys-bde94e46d213f003/out/build/include  -fPIC -c -o src/fn_colors.o src/fn_colors.cpp
[INFO] [stderr]   g++ -Wall -O2 -std=c++11 -I /opt/rustwide/target/debug/build/sass-sys-bde94e46d213f003/out/build/include  -fPIC -c -o src/fn_numbers.o src/fn_numbers.cpp
[INFO] [stderr]   g++ -Wall -O2 -std=c++11 -I /opt/rustwide/target/debug/build/sass-sys-bde94e46d213f003/out/build/include  -fPIC -c -o src/fn_strings.o src/fn_strings.cpp
[INFO] [stderr] 
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x5ddd4a8befa0 - std::backtrace_rs::backtrace::libunwind::trace::h00ed8f7a49b23656
[INFO] [stderr]                                  at /rustc/5a45ab9738330fb317d49e3594c2db5248b1e971/library/std/src/../../backtrace/src/backtrace/libunwind.rs:116:5
[INFO] [stderr]      1:     0x5ddd4a8befa0 - std::backtrace_rs::backtrace::trace_unsynchronized::hb9a616e2fc1d376f
[INFO] [stderr]                                  at /rustc/5a45ab9738330fb317d49e3594c2db5248b1e971/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stderr]      2:     0x5ddd4a8befa0 - std::sys::backtrace::_print_fmt::h7db298e83a256d29
[INFO] [stderr]                                  at /rustc/5a45ab9738330fb317d49e3594c2db5248b1e971/library/std/src/sys/backtrace.rs:66:9
[INFO] [stderr]      3:     0x5ddd4a8befa0 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::hd1ae340659526716
[INFO] [stderr]                                  at /rustc/5a45ab9738330fb317d49e3594c2db5248b1e971/library/std/src/sys/backtrace.rs:39:26
[INFO] [stderr]      4:     0x5ddd4a8e2c73 - core::fmt::rt::Argument::fmt::hac01a348e20ee70d
[INFO] [stderr]                                  at /rustc/5a45ab9738330fb317d49e3594c2db5248b1e971/library/core/src/fmt/rt.rs:177:76
[INFO] [stderr]      5:     0x5ddd4a8e2c73 - core::fmt::write::hc504a50407028ef6
[INFO] [stderr]                                  at /rustc/5a45ab9738330fb317d49e3594c2db5248b1e971/library/core/src/fmt/mod.rs:1449:21
[INFO] [stderr]      6:     0x5ddd4a8bb9a3 - std::io::Write::write_fmt::ha00ae9415040e09a
[INFO] [stderr]                                  at /rustc/5a45ab9738330fb317d49e3594c2db5248b1e971/library/std/src/io/mod.rs:1890:15
[INFO] [stderr]      7:     0x5ddd4a8bedf2 - std::sys::backtrace::BacktraceLock::print::h6f3c8a163b5a5ba5
[INFO] [stderr]                                  at /rustc/5a45ab9738330fb317d49e3594c2db5248b1e971/library/std/src/sys/backtrace.rs:42:9
[INFO] [stderr]      8:     0x5ddd4a8bff7f - std::panicking::default_hook::{{closure}}::h4661160df59af739
[INFO] [stderr]                                  at /rustc/5a45ab9738330fb317d49e3594c2db5248b1e971/library/std/src/panicking.rs:298:22
[INFO] [stderr]      9:     0x5ddd4a8bfdea - std::panicking::default_hook::h79b0b0cb5c9a45eb
[INFO] [stderr]                                  at /rustc/5a45ab9738330fb317d49e3594c2db5248b1e971/library/std/src/panicking.rs:325:9
[INFO] [stderr]     10:     0x5ddd4a8c0962 - std::panicking::rust_panic_with_hook::he8f5885f4873cada
[INFO] [stderr]                                  at /rustc/5a45ab9738330fb317d49e3594c2db5248b1e971/library/std/src/panicking.rs:831:13
[INFO] [stderr]     11:     0x5ddd4a8c06ea - std::panicking::begin_panic_handler::{{closure}}::hce5053f4756cff33
[INFO] [stderr]                                  at /rustc/5a45ab9738330fb317d49e3594c2db5248b1e971/library/std/src/panicking.rs:704:13
[INFO] [stderr]     12:     0x5ddd4a8bf4b9 - std::sys::backtrace::__rust_end_short_backtrace::h634718bdeca7b4fe
[INFO] [stderr]                                  at /rustc/5a45ab9738330fb317d49e3594c2db5248b1e971/library/std/src/sys/backtrace.rs:168:18
[INFO] [stderr]     13:     0x5ddd4a8c037d - rust_begin_unwind
[INFO] [stderr]                                  at /rustc/5a45ab9738330fb317d49e3594c2db5248b1e971/library/std/src/panicking.rs:695:5
[INFO] [stderr]     14:     0x5ddd4a8e1af0 - core::panicking::panic_fmt::h0e90de0256284326
[INFO] [stderr]                                  at /rustc/5a45ab9738330fb317d49e3594c2db5248b1e971/library/core/src/panicking.rs:75:14
[INFO] [stderr]     15:     0x5ddd4a874c17 - build_script_build::compile::h77cd313ba49f3f08
[INFO] [stderr]     16:     0x5ddd4a8752dd - build_script_build::main::he3d8557ae76ba1d0
[INFO] [stderr]     17:     0x5ddd4a8729a3 - core::ops::function::FnOnce::call_once::h064554bda7de496e
[INFO] [stderr]     18:     0x5ddd4a8722f6 - std::sys::backtrace::__rust_begin_short_backtrace::hfd7d4c7a4a90b197
[INFO] [stderr]     19:     0x5ddd4a872299 - std::rt::lang_start::{{closure}}::h051fad4b5e57aa3d
[INFO] [stderr]     20:     0x5ddd4a8b7980 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::h1b551c6ace84f634
[INFO] [stderr]                                  at /rustc/5a45ab9738330fb317d49e3594c2db5248b1e971/library/core/src/ops/function.rs:284:13
[INFO] [stderr]     21:     0x5ddd4a8b7980 - std::panicking::try::do_call::hcda773f48bd80f09
[INFO] [stderr]                                  at /rustc/5a45ab9738330fb317d49e3594c2db5248b1e971/library/std/src/panicking.rs:587:40
[INFO] [stderr]     22:     0x5ddd4a8b7980 - std::panicking::try::h225c38e862182721
[INFO] [stderr]                                  at /rustc/5a45ab9738330fb317d49e3594c2db5248b1e971/library/std/src/panicking.rs:550:19
[INFO] [stderr]     23:     0x5ddd4a8b7980 - std::panic::catch_unwind::h6eb4a99877840d20
[INFO] [stderr]                                  at /rustc/5a45ab9738330fb317d49e3594c2db5248b1e971/library/std/src/panic.rs:358:14
[INFO] [stderr]     24:     0x5ddd4a8b7980 - std::rt::lang_start_internal::{{closure}}::h64597ebca62f6e02
[INFO] [stderr]                                  at /rustc/5a45ab9738330fb317d49e3594c2db5248b1e971/library/std/src/rt.rs:168:24
[INFO] [stderr]     25:     0x5ddd4a8b7980 - std::panicking::try::do_call::ha3630280e291428a
[INFO] [stderr]                                  at /rustc/5a45ab9738330fb317d49e3594c2db5248b1e971/library/std/src/panicking.rs:587:40
[INFO] [stderr]     26:     0x5ddd4a8b7980 - std::panicking::try::h13d8cfc120ae8ff3
[INFO] [stderr]                                  at /rustc/5a45ab9738330fb317d49e3594c2db5248b1e971/library/std/src/panicking.rs:550:19
[INFO] [stderr]     27:     0x5ddd4a8b7980 - std::panic::catch_unwind::h9b1225c928e48a40
[INFO] [stderr]                                  at /rustc/5a45ab9738330fb317d49e3594c2db5248b1e971/library/std/src/panic.rs:358:14
[INFO] [stderr]     28:     0x5ddd4a8b7980 - std::rt::lang_start_internal::h27f44511957e98ab
[INFO] [stderr]                                  at /rustc/5a45ab9738330fb317d49e3594c2db5248b1e971/library/std/src/rt.rs:164:5
[INFO] [stderr]     29:     0x5ddd4a872281 - std::rt::lang_start::h0c22d3f5ec837f10
[INFO] [stderr]     30:     0x5ddd4a875315 - main
[INFO] [stderr]     31:     0x728a3dc72d90 - <unknown>
[INFO] [stderr]     32:     0x728a3dc72e40 - __libc_start_main
[INFO] [stderr]     33:     0x5ddd4a871d15 - _start
[INFO] [stderr]     34:                0x0 - <unknown>
[INFO] running `Command { std: "docker" "inspect" "b68e2ba788dc781903b8efc0ee79230d4e74db76d9ea7797d43171f63052d044", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b68e2ba788dc781903b8efc0ee79230d4e74db76d9ea7797d43171f63052d044", kill_on_drop: false }`
[INFO] [stdout] b68e2ba788dc781903b8efc0ee79230d4e74db76d9ea7797d43171f63052d044
