[INFO] crate rust-mpfr 0.1.7 is already in cache
[INFO] extracting crate rust-mpfr 0.1.7 into work/ex/beta-1.38-1/sources/1.37.0/reg/rust-mpfr/0.1.7
[INFO] extracting crate rust-mpfr 0.1.7 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/rust-mpfr/0.1.7
[INFO] validating manifest of rust-mpfr-0.1.7 on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of rust-mpfr-0.1.7 on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "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-1.38-1/sources/1.37.0/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-1.38-1/sources/beta-2019-08-13/reg/rust-mpfr/0.1.7/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing rust-mpfr-0.1.7 against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/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-2019-08-13" "build" "--frozen"`
[INFO] [stdout] e6c7fffa98506bd391e94ac82aeb7320a81f4b83256ae807fb496b7606cad671
[INFO] running `"docker" "start" "-a" "e6c7fffa98506bd391e94ac82aeb7320a81f4b83256ae807fb496b7606cad671"`
[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-2019-08-13-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/rustcr8RRY2/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-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-lmpfr" "-Wl,-Bstatic" "-Wl,--whole-archive" "/tmp/rustcr8RRY2/librustc_serialize-fc0a027b4489f806.rlib" "-Wl,--no-whole-archive" "-Wl,--whole-archive" "/tmp/rustcr8RRY2/libgmp-d7c1b8462fb54870.rlib" "-Wl,--no-whole-archive" "-Wl,--whole-archive" "/tmp/rustcr8RRY2/liblibc-37f3d1c853b3b7bd.rlib" "-Wl,--no-whole-archive" "-Wl,--start-group" "-Wl,--whole-archive" "/tmp/rustcr8RRY2/libstd-1d6d86bd078a28e9.rlib" "-Wl,--no-whole-archive" "-Wl,--whole-archive" "/tmp/rustcr8RRY2/libpanic_unwind-e9721e46a424e2a9.rlib" "-Wl,--no-whole-archive" "-Wl,--whole-archive" "/tmp/rustcr8RRY2/libbacktrace-c07193698f282147.rlib" "-Wl,--no-whole-archive" "-Wl,--whole-archive" "/tmp/rustcr8RRY2/libbacktrace_sys-6da45690f3863086.rlib" "-Wl,--no-whole-archive" "-Wl,--whole-archive" "/tmp/rustcr8RRY2/librustc_demangle-690797036dd27680.rlib" "-Wl,--no-whole-archive" "-Wl,--whole-archive" "/tmp/rustcr8RRY2/libhashbrown-d3896ccbfd8eda2b.rlib" "-Wl,--no-whole-archive" "-Wl,--whole-archive" "/tmp/rustcr8RRY2/librustc_std_workspace_alloc-7cccc3739e3d7623.rlib" "-Wl,--no-whole-archive" "-Wl,--whole-archive" "/tmp/rustcr8RRY2/libunwind-5e9ba178a513cd29.rlib" "-Wl,--no-whole-archive" "-Wl,--whole-archive" "/tmp/rustcr8RRY2/libcfg_if-5ca9f83bf63d1f4b.rlib" "-Wl,--no-whole-archive" "-Wl,--whole-archive" "/tmp/rustcr8RRY2/liblibc-bba1c7ef9e950882.rlib" "-Wl,--no-whole-archive" "-Wl,--whole-archive" "/tmp/rustcr8RRY2/liballoc-e23c9de62012deb5.rlib" "-Wl,--no-whole-archive" "-Wl,--whole-archive" "/tmp/rustcr8RRY2/librustc_std_workspace_core-9b59dffdcd513d5d.rlib" "-Wl,--no-whole-archive" "-Wl,--whole-archive" "/tmp/rustcr8RRY2/libcore-17392340ab2e4a97.rlib" "-Wl,--no-whole-archive" "-Wl,--end-group" "/tmp/rustcr8RRY2/libcompiler_builtins-ac21508a81e3f7f3.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" "e6c7fffa98506bd391e94ac82aeb7320a81f4b83256ae807fb496b7606cad671"`
[INFO] running `"docker" "rm" "-f" "e6c7fffa98506bd391e94ac82aeb7320a81f4b83256ae807fb496b7606cad671"`
[INFO] [stdout] e6c7fffa98506bd391e94ac82aeb7320a81f4b83256ae807fb496b7606cad671