[INFO] crate eth_pairings_cpp 0.1.1 is already in cache
[INFO] checking eth_pairings_cpp-0.1.1 against master#c9edc02e8320a9e5799d185910ece7d491f524e6 for pr-64398
[INFO] extracting crate eth_pairings_cpp 0.1.1 into work/builds/worker-1/source
[INFO] validating manifest of crates.io crate eth_pairings_cpp 0.1.1 on toolchain c9edc02e8320a9e5799d185910ece7d491f524e6-alt
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+c9edc02e8320a9e5799d185910ece7d491f524e6-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate eth_pairings_cpp 0.1.1
[INFO] finished tweaking crates.io crate eth_pairings_cpp 0.1.1
[INFO] tweaked toml for crates.io crate eth_pairings_cpp 0.1.1 written to work/builds/worker-1/source/Cargo.toml
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+c9edc02e8320a9e5799d185910ece7d491f524e6-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+c9edc02e8320a9e5799d185910ece7d491f524e6-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/mnt/big/crater/work/builds/worker-1/source:/opt/rustwide/workdir:ro,Z" "-v" "/mnt/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+c9edc02e8320a9e5799d185910ece7d491f524e6-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] ad1493719144a2545ad6365aff9a6c0880369c343df1f4b93f1101b1f8c15e13
[INFO] running `"docker" "start" "-a" "ad1493719144a2545ad6365aff9a6c0880369c343df1f4b93f1101b1f8c15e13"`
[INFO] [stderr]    Compiling eth_pairings_cpp v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr] error: failed to run custom build command for `eth_pairings_cpp v0.1.1 (/opt/rustwide/workdir)`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/eth_pairings_cpp-6772ed599a469a7d/build-script-build` (exit code: 1)
[INFO] [stderr] --- stdout
[INFO] [stderr] TARGET = Some("x86_64-unknown-linux-gnu")
[INFO] [stderr] HOST = Some("x86_64-unknown-linux-gnu")
[INFO] [stderr] CXX_x86_64-unknown-linux-gnu = None
[INFO] [stderr] CXX_x86_64_unknown_linux_gnu = None
[INFO] [stderr] HOST_CXX = None
[INFO] [stderr] CXX = None
[INFO] [stderr] CXXFLAGS_x86_64-unknown-linux-gnu = None
[INFO] [stderr] CXXFLAGS_x86_64_unknown_linux_gnu = None
[INFO] [stderr] HOST_CXXFLAGS = None
[INFO] [stderr] CXXFLAGS = None
[INFO] [stderr] CRATE_CC_NO_DEFAULTS = None
[INFO] [stderr] DEBUG = Some("true")
[INFO] [stderr] running: "c++" "-O3" "-ffunction-sections" "-fdata-sections" "-fPIC" "-g" "-fno-omit-frame-pointer" "-m64" "-static" "-I" "eip1962cpp/include" "-std=c++1z" "-o" "/opt/rustwide/target/debug/build/eth_pairings_cpp-5dd5da2f8bdfb12d/out/eip1962cpp/src/common.o" "-c" "eip1962cpp/src/common.cpp"
[INFO] [stderr] running: "c++" "-O3" "-ffunction-sections" "-fdata-sections" "-fPIC" "-g" "-fno-omit-frame-pointer" "-m64" "-static" "-I" "eip1962cpp/include" "-std=c++1z" "-o" "/opt/rustwide/target/debug/build/eth_pairings_cpp-5dd5da2f8bdfb12d/out/eip1962cpp/src/api.o" "-c" "eip1962cpp/src/api.cpp"
[INFO] [stderr] running: "c++" "-O3" "-ffunction-sections" "-fdata-sections" "-fPIC" "-g" "-fno-omit-frame-pointer" "-m64" "-static" "-I" "eip1962cpp/include" "-std=c++1z" "-o" "/opt/rustwide/target/debug/build/eth_pairings_cpp-5dd5da2f8bdfb12d/out/eip1962cpp/src/repr.o" "-c" "eip1962cpp/src/repr.cpp"
[INFO] [stderr] running: "c++" "-O3" "-ffunction-sections" "-fdata-sections" "-fPIC" "-g" "-fno-omit-frame-pointer" "-m64" "-static" "-I" "eip1962cpp/include" "-std=c++1z" "-o" "/opt/rustwide/target/debug/build/eth_pairings_cpp-5dd5da2f8bdfb12d/out/eip1962cpp/src/wrapper.o" "-c" "eip1962cpp/src/wrapper.cpp"
[INFO] [stderr] cargo:warning=In file included from eip1962cpp/src/common.cpp:1:0:
[INFO] [stderr] cargo:warning=eip1962cpp/src/common.h:8:20: fatal error: optional: No such file or directory
[INFO] [stderr] cargo:warning= #include <optional>
[INFO] [stderr] cargo:warning=                    ^
[INFO] [stderr] cargo:warning=compilation terminated.
[INFO] [stderr] cargo:warning=In file included from eip1962cpp/src/api.cpp:1:0:
[INFO] [stderr] cargo:warning=eip1962cpp/src/api.h:4:19: fatal error: variant: No such file or directory
[INFO] [stderr] cargo:warning= #include <variant>
[INFO] [stderr] cargo:warning=                   ^
[INFO] [stderr] cargo:warning=compilation terminated.
[INFO] [stderr] exit code: 1
[INFO] [stderr] exit code: 1
[INFO] [stderr] cargo:warning=In file included from eip1962cpp/src/repr.h:4:0,
[INFO] [stderr] cargo:warning=                 from eip1962cpp/src/repr.cpp:1:
[INFO] [stderr] cargo:warning=eip1962cpp/src/common.h:8:20: fatal error: optional: No such file or directory
[INFO] [stderr] cargo:warning= #include <optional>
[INFO] [stderr] cargo:warning=                    ^
[INFO] [stderr] cargo:warning=compilation terminated.
[INFO] [stderr] exit code: 1
[INFO] [stderr] cargo:warning=In file included from eip1962cpp/src/wrapper.cpp:1:0:
[INFO] [stderr] cargo:warning=eip1962cpp/src/api.h:4:19: fatal error: variant: No such file or directory
[INFO] [stderr] cargo:warning= #include <variant>
[INFO] [stderr] cargo:warning=                   ^
[INFO] [stderr] cargo:warning=compilation terminated.
[INFO] [stderr] exit code: 1
[INFO] [stderr] 
[INFO] [stderr] --- stderr
[INFO] [stderr] 
[INFO] [stderr] 
[INFO] [stderr] error occurred: Command "c++" "-O3" "-ffunction-sections" "-fdata-sections" "-fPIC" "-g" "-fno-omit-frame-pointer" "-m64" "-static" "-I" "eip1962cpp/include" "-std=c++1z" "-o" "/opt/rustwide/target/debug/build/eth_pairings_cpp-5dd5da2f8bdfb12d/out/eip1962cpp/src/api.o" "-c" "eip1962cpp/src/api.cpp" with args "c++" did not execute successfully (status code exit code: 1).
[INFO] [stderr] 
[INFO] [stderr] 
[INFO] [stderr] 
[INFO] running `"docker" "inspect" "ad1493719144a2545ad6365aff9a6c0880369c343df1f4b93f1101b1f8c15e13"`
[INFO] running `"docker" "rm" "-f" "ad1493719144a2545ad6365aff9a6c0880369c343df1f4b93f1101b1f8c15e13"`
[INFO] [stdout] ad1493719144a2545ad6365aff9a6c0880369c343df1f4b93f1101b1f8c15e13