[INFO] crate rust-mpfr 0.1.7 is already in cache
[INFO] extracting crate rust-mpfr 0.1.7 into work/ex/beta-1.37-6/sources/1.36.0/reg/rust-mpfr/0.1.7
[INFO] extracting crate rust-mpfr 0.1.7 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/rust-mpfr/0.1.7
[INFO] validating manifest of rust-mpfr-0.1.7 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 rust-mpfr-0.1.7 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 rust-mpfr-0.1.7
[INFO] finished frobbing rust-mpfr-0.1.7
[INFO] frobbed toml for rust-mpfr-0.1.7 written to work/ex/beta-1.37-6/sources/1.36.0/reg/rust-mpfr/0.1.7/Cargo.toml
[INFO] started frobbing rust-mpfr-0.1.7
[INFO] finished frobbing rust-mpfr-0.1.7
[INFO] frobbed toml for rust-mpfr-0.1.7 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/rust-mpfr/0.1.7/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] 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 rust-mpfr-0.1.7 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-5/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/rust-mpfr/0.1.7:/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] b217a4ae74547f125103ffc3d9f6bb0ea79b14b705783660ff24a02103bec627
[INFO] running `"docker" "start" "-a" "b217a4ae74547f125103ffc3d9f6bb0ea79b14b705783660ff24a02103bec627"`
[INFO] [stderr]    Compiling rust-gmp v0.3.2
[INFO] [stderr]    Compiling rust-mpfr v0.1.7 (/opt/crater/workdir)
[INFO] [stderr] error: linking with `cc` failed: exit code: 1
[INFO] [stderr]   |
[INFO] [stderr]   = note: "cc" "-Wl,--as-needed" "-Wl,-z,noexecstack" "-m64" "-L" "/opt/crater/rustup-home/toolchains/beta-2019-07-23-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "/opt/crater/target/debug/deps/rust_mpfr.rust_mpfr.dqhef6ic-cgu.0.rcgu.o" "/opt/crater/target/debug/deps/rust_mpfr.rust_mpfr.dqhef6ic-cgu.1.rcgu.o" "/opt/crater/target/debug/deps/rust_mpfr.rust_mpfr.dqhef6ic-cgu.10.rcgu.o" "/opt/crater/target/debug/deps/rust_mpfr.rust_mpfr.dqhef6ic-cgu.11.rcgu.o" "/opt/crater/target/debug/deps/rust_mpfr.rust_mpfr.dqhef6ic-cgu.12.rcgu.o" "/opt/crater/target/debug/deps/rust_mpfr.rust_mpfr.dqhef6ic-cgu.13.rcgu.o" "/opt/crater/target/debug/deps/rust_mpfr.rust_mpfr.dqhef6ic-cgu.14.rcgu.o" "/opt/crater/target/debug/deps/rust_mpfr.rust_mpfr.dqhef6ic-cgu.15.rcgu.o" "/opt/crater/target/debug/deps/rust_mpfr.rust_mpfr.dqhef6ic-cgu.2.rcgu.o" "/opt/crater/target/debug/deps/rust_mpfr.rust_mpfr.dqhef6ic-cgu.3.rcgu.o" "/opt/crater/target/debug/deps/rust_mpfr.rust_mpfr.dqhef6ic-cgu.4.rcgu.o" "/opt/crater/target/debug/deps/rust_mpfr.rust_mpfr.dqhef6ic-cgu.5.rcgu.o" "/opt/crater/target/debug/deps/rust_mpfr.rust_mpfr.dqhef6ic-cgu.6.rcgu.o" "/opt/crater/target/debug/deps/rust_mpfr.rust_mpfr.dqhef6ic-cgu.7.rcgu.o" "/opt/crater/target/debug/deps/rust_mpfr.rust_mpfr.dqhef6ic-cgu.8.rcgu.o" "/opt/crater/target/debug/deps/rust_mpfr.rust_mpfr.dqhef6ic-cgu.9.rcgu.o" "-o" "/opt/crater/target/debug/deps/librust_mpfr.so" "-Wl,--version-script=/tmp/rustc9X9YYn/list" "/opt/crater/target/debug/deps/rust_mpfr.vev6nvbwpnoeprd.rcgu.o" "/opt/crater/target/debug/deps/rust_mpfr.u9066w8ojz7z6xy.rcgu.o" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs" "-L" "/opt/crater/target/debug/deps" "-L" "/opt/crater/rustup-home/toolchains/beta-2019-07-23-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-lmpfr" "-Wl,-Bstatic" "-Wl,--whole-archive" "/tmp/rustc9X9YYn/librustc_serialize-349ba31664dfb847.rlib" "-Wl,--no-whole-archive" "-Wl,--whole-archive" "/tmp/rustc9X9YYn/libgmp-b22c026f76f46e00.rlib" "-Wl,--no-whole-archive" "-Wl,--whole-archive" "/tmp/rustc9X9YYn/liblibc-15b143653abd1ffe.rlib" "-Wl,--no-whole-archive" "-Wl,--start-group" "-Wl,--whole-archive" "/tmp/rustc9X9YYn/libstd-a80a1e8e09cafef8.rlib" "-Wl,--no-whole-archive" "-Wl,--whole-archive" "/tmp/rustc9X9YYn/libpanic_unwind-e0e6351da805c468.rlib" "-Wl,--no-whole-archive" "-Wl,--whole-archive" "/tmp/rustc9X9YYn/libbacktrace-e04f54bafc95e331.rlib" "-Wl,--no-whole-archive" "-Wl,--whole-archive" "/tmp/rustc9X9YYn/libbacktrace_sys-67901d3322495bd5.rlib" "-Wl,--no-whole-archive" "-Wl,--whole-archive" "/tmp/rustc9X9YYn/librustc_demangle-bd390b1abaceaec1.rlib" "-Wl,--no-whole-archive" "-Wl,--whole-archive" "/tmp/rustc9X9YYn/libhashbrown-312dd37fdc7bedfc.rlib" "-Wl,--no-whole-archive" "-Wl,--whole-archive" "/tmp/rustc9X9YYn/librustc_std_workspace_alloc-8ed0e51d58d644a3.rlib" "-Wl,--no-whole-archive" "-Wl,--whole-archive" "/tmp/rustc9X9YYn/libunwind-8a423c320a6c707f.rlib" "-Wl,--no-whole-archive" "-Wl,--whole-archive" "/tmp/rustc9X9YYn/libcfg_if-d6a95598e2238263.rlib" "-Wl,--no-whole-archive" "-Wl,--whole-archive" "/tmp/rustc9X9YYn/liblibc-d231614b153016eb.rlib" "-Wl,--no-whole-archive" "-Wl,--whole-archive" "/tmp/rustc9X9YYn/liballoc-3821619027f463e4.rlib" "-Wl,--no-whole-archive" "-Wl,--whole-archive" "/tmp/rustc9X9YYn/librustc_std_workspace_core-1cfd794d18771a44.rlib" "-Wl,--no-whole-archive" "-Wl,--whole-archive" "/tmp/rustc9X9YYn/libcore-dcf33cf10c2452ef.rlib" "-Wl,--no-whole-archive" "-Wl,--end-group" "/tmp/rustc9X9YYn/libcompiler_builtins-c258fea34bf64bce.rlib" "-Wl,-Bdynamic" "-lgmp" "-lgmp" "-lgmp" "-lgmp" "-lutil" "-lutil" "-ldl" "-lrt" "-lpthread" "-lgcc_s" "-lc" "-lm" "-lrt" "-lpthread" "-lutil" "-lutil" "-shared"
[INFO] [stderr]   = note: /usr/bin/ld: cannot find -lmpfr
[INFO] [stderr]           collect2: error: ld returned 1 exit status
[INFO] [stderr]           
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `rust-mpfr`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "b217a4ae74547f125103ffc3d9f6bb0ea79b14b705783660ff24a02103bec627"`
[INFO] running `"docker" "rm" "-f" "b217a4ae74547f125103ffc3d9f6bb0ea79b14b705783660ff24a02103bec627"`
[INFO] [stdout] b217a4ae74547f125103ffc3d9f6bb0ea79b14b705783660ff24a02103bec627