[INFO] fetching crate cobalt-bin 0.18.4...
[INFO] documenting cobalt-bin-0.18.4 against 1.69.0 for beta-1.70-rustdoc-1
[INFO] extracting crate cobalt-bin 0.18.4 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate cobalt-bin 0.18.4 on toolchain 1.69.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.69.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cobalt-bin 0.18.4
[INFO] finished tweaking crates.io crate cobalt-bin 0.18.4
[INFO] tweaked toml for crates.io crate cobalt-bin 0.18.4 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate crates.io crate cobalt-bin 0.18.4 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" "+1.69.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded vimwiki v0.1.0
[INFO] [stderr]   Downloaded shellexpand v2.1.2
[INFO] [stderr]   Downloaded plist v1.4.0
[INFO] [stderr]   Downloaded numerals v0.1.4
[INFO] [stderr]   Downloaded line-wrap v0.1.1
[INFO] [stderr]   Downloaded quick-xml v0.26.0
[INFO] [stderr]   Downloaded trycmd v0.14.11
[INFO] [stderr]   Downloaded educe v0.4.20
[INFO] [stderr]   Downloaded pest_derive v2.5.4
[INFO] [stderr]   Downloaded sitemap v0.4.1
[INFO] [stderr]   Downloaded cxxbridge-flags v1.0.88
[INFO] [stderr]   Downloaded humantime-serde v1.1.1
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[INFO] [stderr]   Downloaded liquid v0.26.0
[INFO] [stderr]   Downloaded darling_core v0.14.2
[INFO] [stderr]   Downloaded utf8-width v0.1.6
[INFO] [stderr]   Downloaded serde_yaml v0.9.17
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[INFO] [stderr]   Downloaded liquid-core v0.26.0
[INFO] [stderr]   Downloaded engarde v0.1.6
[INFO] [stderr]   Downloaded darling_macro v0.14.2
[INFO] [stderr]   Downloaded cxx-build v1.0.88
[INFO] [stderr]   Downloaded snapbox-macros v0.3.3
[INFO] [stderr]   Downloaded pest v2.5.4
[INFO] [stderr]   Downloaded enum-ordinalize v3.1.12
[INFO] [stderr]   Downloaded os_info v2.0.8
[INFO] [stderr]   Downloaded radium v0.5.3
[INFO] [stderr]   Downloaded io-lifetimes v1.0.4
[INFO] [stderr]   Downloaded pathdiff v0.2.1
[INFO] [stderr]   Downloaded concolor-clap v0.0.14
[INFO] [stderr]   Downloaded cow-utils v0.1.2
[INFO] [stderr]   Downloaded darling v0.14.2
[INFO] [stderr]   Downloaded open v3.2.0
[INFO] [stderr]   Downloaded html-minifier v3.0.15
[INFO] [stderr]   Downloaded html-escape v0.2.13
[INFO] [stderr]   Downloaded dirs v3.0.2
[INFO] [stderr]   Downloaded chrono_utils v0.1.3
[INFO] [stderr]   Downloaded cobalt-core v0.18.2
[INFO] [stderr]   Downloaded macro-utils v0.1.3
[INFO] [stderr]   Downloaded terminal_size v0.2.3
[INFO] [stderr]   Downloaded concolor v0.0.12
[INFO] [stderr]   Downloaded file-serve v0.2.2
[INFO] [stderr]   Downloaded status v0.0.10
[INFO] [stderr]   Downloaded diligent-date-parser v0.1.4
[INFO] [stderr]   Downloaded clap-verbosity-flag v2.0.0
[INFO] [stderr]   Downloaded concolor v0.1.1
[INFO] [stderr]   Downloaded never v0.1.0
[INFO] [stderr]   Downloaded chunked_transfer v1.4.1
[INFO] [stderr]   Downloaded jsonfeed v0.2.0
[INFO] [stderr]   Downloaded cobalt-config v0.18.2
[INFO] [stderr]   Downloaded human-panic v1.1.0
[INFO] [stderr]   Downloaded sass-rs v0.2.2
[INFO] [stderr]   Downloaded dunce v1.0.3
[INFO] [stderr]   Downloaded concolor v0.0.11
[INFO] [stderr]   Downloaded proc-exit v2.0.0
[INFO] [stderr]   Downloaded concolor-query v0.1.0
[INFO] [stderr]   Downloaded atom_syndication v0.12.0
[INFO] [stderr]   Downloaded liquid-derive v0.26.0
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[INFO] [stderr]   Downloaded ascii v1.1.0
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[INFO] [stderr]   Downloaded liquid-lib v0.26.0
[INFO] [stderr]   Downloaded snapbox v0.4.10
[INFO] [stderr]   Downloaded tiny_http v0.12.0
[INFO] [stderr]   Downloaded fancy-regex v0.7.1
[INFO] [stderr]   Downloaded vimwiki-core v0.1.0
[INFO] [stderr]   Downloaded time v0.3.17
[INFO] [stderr]   Downloaded voca_rs v1.15.2
[INFO] [stderr]   Downloaded bitvec v0.19.6
[INFO] [stderr]   Downloaded bstr v1.1.0
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[INFO] [stderr]   Downloaded sass-sys v0.4.22
[INFO] [stderr]   Downloaded syntect v4.6.0
[INFO] [stderr]   Downloaded gimli v0.27.1
[INFO] [stderr]   Downloaded syntect v5.0.0
[INFO] [stderr]   Downloaded cxx v1.0.88
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a07f1849897a851c1b3f929cc4043ee9eaa5aaca1a1ab58c1bb8aab6382967d2
[INFO] running `Command { std: "docker" "start" "-a" "a07f1849897a851c1b3f929cc4043ee9eaa5aaca1a1ab58c1bb8aab6382967d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a07f1849897a851c1b3f929cc4043ee9eaa5aaca1a1ab58c1bb8aab6382967d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a07f1849897a851c1b3f929cc4043ee9eaa5aaca1a1ab58c1bb8aab6382967d2", kill_on_drop: false }`
[INFO] [stdout] a07f1849897a851c1b3f929cc4043ee9eaa5aaca1a1ab58c1bb8aab6382967d2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9a27f4dcbd2b3e3996f572470778a73e7db308286abcb1c5d4d741f1a3bcc8d5
[INFO] running `Command { std: "docker" "start" "-a" "9a27f4dcbd2b3e3996f572470778a73e7db308286abcb1c5d4d741f1a3bcc8d5", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.54
[INFO] [stderr]    Compiling unicode-ident v1.0.6
[INFO] [stderr]    Compiling syn v1.0.107
[INFO] [stderr]    Compiling serde_derive v1.0.152
[INFO] [stderr]    Compiling serde v1.0.152
[INFO] [stderr]     Checking regex-syntax v0.6.28
[INFO] [stderr]    Compiling io-lifetimes v1.0.4
[INFO] [stderr]     Checking itoa v1.0.5
[INFO] [stderr]    Compiling thiserror v1.0.38
[INFO] [stderr]    Compiling rustix v0.37.6
[INFO] [stderr]    Compiling indexmap v1.9.2
[INFO] [stderr]     Checking ryu v1.0.12
[INFO] [stderr]     Checking once_cell v1.17.0
[INFO] [stderr]    Compiling time-macros v0.2.6
[INFO] [stderr]     Checking walkdir v2.3.2
[INFO] [stderr]     Checking num-integer v0.1.45
[INFO] [stderr]     Checking time v0.1.45
[INFO] [stderr]     Checking iana-time-zone v0.1.53
[INFO] [stderr]    Compiling serde_json v1.0.91
[INFO] [stderr]    Compiling rustix v0.36.7
[INFO] [stderr]    Compiling libc v0.2.140
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling radium v0.5.3
[INFO] [stderr]     Checking yaml-rust v0.4.5
[INFO] [stderr]     Checking dirs-sys v0.3.7
[INFO] [stderr]     Checking safemem v0.3.3
[INFO] [stderr]    Compiling lexical-core v0.7.6
[INFO] [stderr]     Checking gimli v0.27.1
[INFO] [stderr]     Checking line-wrap v0.1.1
[INFO] [stderr]    Compiling num-bigint v0.4.3
[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]     Checking quick-xml v0.26.0
[INFO] [stderr]    Compiling nom v6.1.2
[INFO] [stderr]     Checking deunicode v1.3.3
[INFO] [stderr]     Checking rustc-demangle v0.1.21
[INFO] [stderr]     Checking arrayvec v0.5.2
[INFO] [stderr]     Checking wyz v0.2.0
[INFO] [stderr]    Compiling quote v1.0.26
[INFO] [stderr]     Checking tap v1.0.1
[INFO] [stderr]     Checking concolor-query v0.1.0
[INFO] [stderr]     Checking funty v1.1.0
[INFO] [stderr]    Compiling num_cpus v1.15.0
[INFO] [stderr]    Compiling mime_guess v2.0.4
[INFO] [stderr]     Checking unicode-normalization v0.1.22
[INFO] [stderr]     Checking dirs v4.0.0
[INFO] [stderr]    Compiling syn v2.0.12
[INFO] [stderr]     Checking bstr v1.1.0
[INFO] [stderr]     Checking lazycell v1.3.0
[INFO] [stderr]     Checking time v0.3.17
[INFO] [stderr]    Compiling proc-quote-impl v0.3.2
[INFO] [stderr]     Checking unsafe-libyaml v0.2.5
[INFO] [stderr]    Compiling sass-sys v0.4.22
[INFO] [stderr]     Checking unicode-bidi v0.3.10
[INFO] [stderr]     Checking regex v1.7.1
[INFO] [stderr]     Checking bitvec v0.19.6
[INFO] [stderr]    Compiling convert_case v0.4.0
[INFO] [stderr]     Checking quick-xml v0.27.1
[INFO] [stderr]     Checking shellexpand v2.1.2
[INFO] [stderr]     Checking idna v0.3.0
[INFO] [stderr]     Checking status v0.0.10
[INFO] [stderr]     Checking dirs v3.0.2
[INFO] [stderr]     Checking thread_local v1.1.4
[INFO] [stderr]     Checking getrandom v0.2.8
[INFO] [stderr] error: could not compile `gimli`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name gimli --edition=2018 /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/gimli-0.27.1/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="read"' --cfg 'feature="read-core"' -C metadata=3cc49ba31b06eb39 -C extra-filename=-3cc49ba31b06eb39 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --cap-lints allow --cap-lints=warn` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `rustix`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name rustix --edition=2018 /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustix-0.37.6/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="fs"' --cfg 'feature="io-lifetimes"' --cfg 'feature="libc"' --cfg 'feature="std"' --cfg 'feature="termios"' --cfg 'feature="use-libc-auxv"' -C metadata=98155c3378cd6e79 -C extra-filename=-98155c3378cd6e79 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern bitflags=/opt/rustwide/target/debug/deps/libbitflags-1a1c34f79f6e612c.rmeta --extern io_lifetimes=/opt/rustwide/target/debug/deps/libio_lifetimes-4558b223d6708538.rmeta --extern libc=/opt/rustwide/target/debug/deps/liblibc-ff4bc764a74418dc.rmeta --extern linux_raw_sys=/opt/rustwide/target/debug/deps/liblinux_raw_sys-f44906b3b8c5a01e.rmeta --cap-lints allow --cap-lints=warn --cfg linux_raw --cfg asm --cfg linux_like` (signal: 9, SIGKILL: kill)
[INFO] [stderr] error: could not compile `syn`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name syn --edition=2018 /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/syn-1.0.107/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="extra-traits"' --cfg 'feature="full"' --cfg 'feature="parsing"' --cfg 'feature="printing"' --cfg 'feature="proc-macro"' --cfg 'feature="quote"' -C metadata=0f0a7be42ed64f59 -C extra-filename=-0f0a7be42ed64f59 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-2a3a75f3065e1c8a.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-ad9f46d06a048c28.rmeta --extern unicode_ident=/opt/rustwide/target/debug/deps/libunicode_ident-52e6d608b8f7c1c9.rmeta --cap-lints allow --cap-lints=warn --cfg syn_disable_nightly_tests` (signal: 9, SIGKILL: kill)
[INFO] [stderr] error: could not compile `syn`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name syn --edition=2021 /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/syn-2.0.12/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"' -C metadata=4c8bca6ddf2d6d3a -C extra-filename=-4c8bca6ddf2d6d3a --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-2a3a75f3065e1c8a.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-ad9f46d06a048c28.rmeta --extern unicode_ident=/opt/rustwide/target/debug/deps/libunicode_ident-52e6d608b8f7c1c9.rmeta --cap-lints allow --cap-lints=warn` (signal: 9, SIGKILL: kill)
[INFO] [stderr] error: could not compile `bitvec`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name bitvec --edition=2018 /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/bitvec-0.19.6/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="std"' -C metadata=f0fdbfb56691e029 -C extra-filename=-f0fdbfb56691e029 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern funty=/opt/rustwide/target/debug/deps/libfunty-ee425c67aaa4eff8.rmeta --extern radium=/opt/rustwide/target/debug/deps/libradium-552e115daa91bcfd.rmeta --extern tap=/opt/rustwide/target/debug/deps/libtap-8d72f6c349551ac3.rmeta --extern wyz=/opt/rustwide/target/debug/deps/libwyz-a1081e472a57d6a7.rmeta --cap-lints allow --cap-lints=warn` (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-5610480585973954/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_x86_64-unknown-linux-gnu
[INFO] [stderr]   cargo:rerun-if-env-changed=PKG_CONFIG_x86_64_unknown_linux_gnu
[INFO] [stderr]   cargo:rerun-if-env-changed=HOST_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]   thread 'main' panicked at 'Build error:
[INFO] [stderr]   STDERR:g++: fatal error: Killed signal terminated program cc1plus
[INFO] [stderr]   compilation terminated.
[INFO] [stderr]   make: *** [Makefile:228: src/ast_sel_super.o] Error 1
[INFO] [stderr]   make: *** Waiting for unfinished jobs....
[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]   g++: fatal error: Killed signal terminated program cc1plus
[INFO] [stderr]   compilation terminated.
[INFO] [stderr]   make: *** [Makefile:228: src/ast_sel_unify.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_sel_cmp.o] Error 1
[INFO] [stderr]   g++: fatal error: Killed signal terminated program cc1plus
[INFO] [stderr]   compilation terminated.
[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_selectors.o] Error 1
[INFO] [stderr] 
[INFO] [stderr]   STDOUT:cc -Wall -O2 -I /opt/rustwide/target/debug/build/sass-sys-35398e11cbddddd2/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-35398e11cbddddd2/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-35398e11cbddddd2/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-35398e11cbddddd2/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-35398e11cbddddd2/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-35398e11cbddddd2/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-35398e11cbddddd2/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-35398e11cbddddd2/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-35398e11cbddddd2/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-35398e11cbddddd2/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-35398e11cbddddd2/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-35398e11cbddddd2/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-35398e11cbddddd2/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-35398e11cbddddd2/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-35398e11cbddddd2/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-35398e11cbddddd2/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-35398e11cbddddd2/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-35398e11cbddddd2/out/build/include  -fPIC -c -o src/fn_strings.o src/fn_strings.cpp
[INFO] [stderr]   ', /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/sass-sys-0.4.22/build.rs:107:9
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x5645c0c7723a - std::backtrace_rs::backtrace::libunwind::trace::ha9053a9a07ca49cb
[INFO] [stderr]                                  at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/std/src/../../backtrace/src/backtrace/libunwind.rs:93:5
[INFO] [stderr]      1:     0x5645c0c7723a - std::backtrace_rs::backtrace::trace_unsynchronized::h9c2852a457ad564e
[INFO] [stderr]                                  at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stderr]      2:     0x5645c0c7723a - std::sys_common::backtrace::_print_fmt::h457936fbfaa0070f
[INFO] [stderr]                                  at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/std/src/sys_common/backtrace.rs:65:5
[INFO] [stderr]      3:     0x5645c0c7723a - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h5779d7bf7f70cb0c
[INFO] [stderr]                                  at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/std/src/sys_common/backtrace.rs:44:22
[INFO] [stderr]      4:     0x5645c0c96cce - core::fmt::write::h5a4baaff1bcd3eb5
[INFO] [stderr]                                  at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/core/src/fmt/mod.rs:1232:17
[INFO] [stderr]      5:     0x5645c0c74765 - std::io::Write::write_fmt::h4bc1f301cb9e9cce
[INFO] [stderr]                                  at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/std/src/io/mod.rs:1684:15
[INFO] [stderr]      6:     0x5645c0c77005 - std::sys_common::backtrace::_print::h5fcdc36060f177e8
[INFO] [stderr]                                  at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/std/src/sys_common/backtrace.rs:47:5
[INFO] [stderr]      7:     0x5645c0c77005 - std::sys_common::backtrace::print::h54ca9458b876c8bf
[INFO] [stderr]                                  at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/std/src/sys_common/backtrace.rs:34:9
[INFO] [stderr]      8:     0x5645c0c7887f - std::panicking::default_hook::{{closure}}::hbe471161c7664ed6
[INFO] [stderr]                                  at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/std/src/panicking.rs:271:22
[INFO] [stderr]      9:     0x5645c0c785bb - std::panicking::default_hook::ha3500da57aa4ac4f
[INFO] [stderr]                                  at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/std/src/panicking.rs:290:9
[INFO] [stderr]     10:     0x5645c0c78e28 - std::panicking::rust_panic_with_hook::h50c09d000dc561d2
[INFO] [stderr]                                  at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/std/src/panicking.rs:692:13
[INFO] [stderr]     11:     0x5645c0c78d29 - std::panicking::begin_panic_handler::{{closure}}::h9e2b2176e00e0d9c
[INFO] [stderr]                                  at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/std/src/panicking.rs:583:13
[INFO] [stderr]     12:     0x5645c0c776a6 - std::sys_common::backtrace::__rust_end_short_backtrace::h5739b8e512c09d02
[INFO] [stderr]                                  at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/std/src/sys_common/backtrace.rs:150:18
[INFO] [stderr]     13:     0x5645c0c78a32 - rust_begin_unwind
[INFO] [stderr]                                  at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/std/src/panicking.rs:579:5
[INFO] [stderr]     14:     0x5645c0c234b3 - core::panicking::panic_fmt::hf33a1475b4dc5c3e
[INFO] [stderr]                                  at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/core/src/panicking.rs:64:14
[INFO] [stderr]     15:     0x5645c0c25110 - build_script_build::compile::h4c73e7128462895d
[INFO] [stderr]     16:     0x5645c0c25778 - build_script_build::main::hc3d9bec62bc1d1c1
[INFO] [stderr]     17:     0x5645c0c25b73 - core::ops::function::FnOnce::call_once::h6107ad4242481036
[INFO] [stderr]     18:     0x5645c0c26039 - std::sys_common::backtrace::__rust_begin_short_backtrace::h5d7f31dff509f5ec
[INFO] [stderr]     19:     0x5645c0c25e09 - std::rt::lang_start::{{closure}}::h8f1e84c5608ee3c4
[INFO] [stderr]     20:     0x5645c0c70a5c - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::hd6efcd3bec896f2c
[INFO] [stderr]                                  at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/core/src/ops/function.rs:287:13
[INFO] [stderr]     21:     0x5645c0c70a5c - std::panicking::try::do_call::hce04e543bb1f4cbb
[INFO] [stderr]                                  at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/std/src/panicking.rs:487:40
[INFO] [stderr]     22:     0x5645c0c70a5c - std::panicking::try::h3342dd4e1f680968
[INFO] [stderr]                                  at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/std/src/panicking.rs:451:19
[INFO] [stderr]     23:     0x5645c0c70a5c - std::panic::catch_unwind::h148ce1e59ac0cee7
[INFO] [stderr]                                  at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/std/src/panic.rs:140:14
[INFO] [stderr]     24:     0x5645c0c70a5c - std::rt::lang_start_internal::{{closure}}::h25f9dda2057a67fe
[INFO] [stderr]                                  at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/std/src/rt.rs:148:48
[INFO] [stderr]     25:     0x5645c0c70a5c - std::panicking::try::do_call::h7caaaeaf9401650b
[INFO] [stderr]                                  at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/std/src/panicking.rs:487:40
[INFO] [stderr]     26:     0x5645c0c70a5c - std::panicking::try::he7d15285746cbbc2
[INFO] [stderr]                                  at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/std/src/panicking.rs:451:19
[INFO] [stderr]     27:     0x5645c0c70a5c - std::panic::catch_unwind::h89fb4f50c0301fe0
[INFO] [stderr]                                  at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/std/src/panic.rs:140:14
[INFO] [stderr]     28:     0x5645c0c70a5c - std::rt::lang_start_internal::h078acd489417d3c1
[INFO] [stderr]                                  at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/std/src/rt.rs:148:20
[INFO] [stderr]     29:     0x5645c0c25de7 - std::rt::lang_start::h8a4acff9123e2b01
[INFO] [stderr]     30:     0x5645c0c257e5 - main
[INFO] [stderr]     31:     0x7f12ebf98d90 - <unknown>
[INFO] [stderr]     32:     0x7f12ebf98e40 - __libc_start_main
[INFO] [stderr]     33:     0x5645c0c23a35 - _start
[INFO] [stderr]     34:                0x0 - <unknown>
[INFO] running `Command { std: "docker" "inspect" "9a27f4dcbd2b3e3996f572470778a73e7db308286abcb1c5d4d741f1a3bcc8d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9a27f4dcbd2b3e3996f572470778a73e7db308286abcb1c5d4d741f1a3bcc8d5", kill_on_drop: false }`
[INFO] [stdout] 9a27f4dcbd2b3e3996f572470778a73e7db308286abcb1c5d4d741f1a3bcc8d5
