[INFO] crate vdf 0.1.0 is already in cache
[INFO] testing vdf-0.1.0 against beta-2019-09-28 for beta-1.39-1
[INFO] extracting crate vdf 0.1.0 into work/builds/worker-7/source
[INFO] validating manifest of crates.io crate vdf 0.1.0 on toolchain beta-2019-09-28
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate vdf 0.1.0
[INFO] finished tweaking crates.io crate vdf 0.1.0
[INFO] tweaked toml for crates.io crate vdf 0.1.0 written to work/builds/worker-7/source/Cargo.toml
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-7/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/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=warn" "-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" "+beta-2019-09-28" "build" "--frozen"`
[INFO] [stdout] a11f6119f141b48d2c1a21ea557144aa42b845e342d512cc2c33ecbcb9e441be
[INFO] running `"docker" "start" "-a" "a11f6119f141b48d2c1a21ea557144aa42b845e342d512cc2c33ecbcb9e441be"`
[INFO] [stderr]    Compiling vdf v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling block-buffer v0.7.3
[INFO] [stderr]    Compiling classgroup v0.1.0
[INFO] [stderr]    Compiling sha2 v0.8.0
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.95s
[INFO] running `"docker" "inspect" "a11f6119f141b48d2c1a21ea557144aa42b845e342d512cc2c33ecbcb9e441be"`
[INFO] running `"docker" "rm" "-f" "a11f6119f141b48d2c1a21ea557144aa42b845e342d512cc2c33ecbcb9e441be"`
[INFO] [stdout] a11f6119f141b48d2c1a21ea557144aa42b845e342d512cc2c33ecbcb9e441be
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-7/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/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=warn" "-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" "+beta-2019-09-28" "test" "--frozen" "--no-run"`
[INFO] [stdout] 5431c2c64412b4006cfa4d7b0022157caa4e570bb4afe82cf3891f6ad9a25028
[INFO] running `"docker" "start" "-a" "5431c2c64412b4006cfa4d7b0022157caa4e570bb4afe82cf3891f6ad9a25028"`
[INFO] [stderr]    Compiling getrandom v0.1.12
[INFO] [stderr]    Compiling regex-automata v0.1.8
[INFO] [stderr]    Compiling criterion-plot v0.4.0
[INFO] [stderr]    Compiling bstr v0.2.8
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_os v0.2.2
[INFO] [stderr]    Compiling rand_xoshiro v0.3.1
[INFO] [stderr]    Compiling csv v1.1.1
[INFO] [stderr]    Compiling criterion v0.3.0
[INFO] [stderr]    Compiling vdf v0.1.0 (/opt/rustwide/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/rustwide/rustup-home/toolchains/beta-2019-09-28-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "/opt/rustwide/target/debug/deps/vdf-4fe55b6c6efe54af.vdf.98pstp2c-cgu.0.rcgu.o" "/opt/rustwide/target/debug/deps/vdf-4fe55b6c6efe54af.vdf.98pstp2c-cgu.1.rcgu.o" "/opt/rustwide/target/debug/deps/vdf-4fe55b6c6efe54af.vdf.98pstp2c-cgu.10.rcgu.o" "/opt/rustwide/target/debug/deps/vdf-4fe55b6c6efe54af.vdf.98pstp2c-cgu.11.rcgu.o" "/opt/rustwide/target/debug/deps/vdf-4fe55b6c6efe54af.vdf.98pstp2c-cgu.12.rcgu.o" "/opt/rustwide/target/debug/deps/vdf-4fe55b6c6efe54af.vdf.98pstp2c-cgu.13.rcgu.o" "/opt/rustwide/target/debug/deps/vdf-4fe55b6c6efe54af.vdf.98pstp2c-cgu.14.rcgu.o" "/opt/rustwide/target/debug/deps/vdf-4fe55b6c6efe54af.vdf.98pstp2c-cgu.15.rcgu.o" "/opt/rustwide/target/debug/deps/vdf-4fe55b6c6efe54af.vdf.98pstp2c-cgu.2.rcgu.o" "/opt/rustwide/target/debug/deps/vdf-4fe55b6c6efe54af.vdf.98pstp2c-cgu.3.rcgu.o" "/opt/rustwide/target/debug/deps/vdf-4fe55b6c6efe54af.vdf.98pstp2c-cgu.4.rcgu.o" "/opt/rustwide/target/debug/deps/vdf-4fe55b6c6efe54af.vdf.98pstp2c-cgu.5.rcgu.o" "/opt/rustwide/target/debug/deps/vdf-4fe55b6c6efe54af.vdf.98pstp2c-cgu.6.rcgu.o" "/opt/rustwide/target/debug/deps/vdf-4fe55b6c6efe54af.vdf.98pstp2c-cgu.7.rcgu.o" "/opt/rustwide/target/debug/deps/vdf-4fe55b6c6efe54af.vdf.98pstp2c-cgu.8.rcgu.o" "/opt/rustwide/target/debug/deps/vdf-4fe55b6c6efe54af.vdf.98pstp2c-cgu.9.rcgu.o" "-o" "/opt/rustwide/target/debug/deps/vdf-4fe55b6c6efe54af" "/opt/rustwide/target/debug/deps/vdf-4fe55b6c6efe54af.1v45fqqgb5ktz8be.rcgu.o" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs" "-L" "/opt/rustwide/target/debug/deps" "-L" "/opt/rustwide/rustup-home/toolchains/beta-2019-09-28-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/opt/rustwide/rustup-home/toolchains/beta-2019-09-28-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libtest-333416314d364512.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2019-09-28-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libterm-4e7423c6db5d181f.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2019-09-28-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libgetopts-794cd61d53274767.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2019-09-28-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunicode_width-93936a2bba77ec06.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2019-09-28-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_std-7618b5c9c4d09931.rlib" "/opt/rustwide/target/debug/deps/libsha2-7b15d2ed2af400b8.rlib" "/opt/rustwide/target/debug/deps/libdigest-4ecb95b01fd9cd27.rlib" "/opt/rustwide/target/debug/deps/libopaque_debug-cc7c16e23a9d8920.rlib" "/opt/rustwide/target/debug/deps/libfake_simd-42a27dd83552ed12.rlib" "/opt/rustwide/target/debug/deps/libblock_buffer-64541c25fc306504.rlib" "/opt/rustwide/target/debug/deps/libgeneric_array-05d47c802dbba0f6.rlib" "/opt/rustwide/target/debug/deps/libtypenum-7ff385c851e3fe33.rlib" "/opt/rustwide/target/debug/deps/libblock_padding-3604a15ec35f7f7c.rlib" "/opt/rustwide/target/debug/deps/libbyte_tools-270ed991014fef89.rlib" "/opt/rustwide/target/debug/deps/libbyteorder-008fc9374f947379.rlib" "/opt/rustwide/target/debug/deps/libclassgroup-8b08940acc68c2a6.rlib" "/opt/rustwide/target/debug/deps/libnum_traits-a49361b936b25068.rlib" "/opt/rustwide/target/debug/deps/liblibc-9f7a5de25bd5699b.rlib" "-Wl,--start-group" "/opt/rustwide/rustup-home/toolchains/beta-2019-09-28-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-db812c66f862af4c.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2019-09-28-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-e7871a21575d5ff7.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2019-09-28-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-2f2c581bc0d759e6.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2019-09-28-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-35731cabc05dc8a0.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2019-09-28-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libbacktrace-36477394541292db.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2019-09-28-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libbacktrace_sys-8b706b170c1272d8.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2019-09-28-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-801dbb3043ccf581.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2019-09-28-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-a32aa66ce6f72b21.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2019-09-28-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcfg_if-d00ea3bfb2bb6c00.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2019-09-28-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-d2c6ebe88c3e113c.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2019-09-28-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-df74f62f6bb60621.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2019-09-28-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-2170473575daeedb.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2019-09-28-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-1a08089bbddc4f51.rlib" "-Wl,--end-group" "/opt/rustwide/rustup-home/toolchains/beta-2019-09-28-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-f8f562e5472ad5c3.rlib" "-Wl,-Bdynamic" "-lgmp" "-lgmp" "-lgmp" "-lutil" "-lutil" "-ldl" "-lrt" "-lpthread" "-lgcc_s" "-lc" "-lm" "-lrt" "-lpthread" "-lutil" "-lutil"
[INFO] [stderr]   = note: /usr/bin/ld: cannot find -lgmp
[INFO] [stderr]           /usr/bin/ld: cannot find -lgmp
[INFO] [stderr]           /usr/bin/ld: cannot find -lgmp
[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 `vdf`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "5431c2c64412b4006cfa4d7b0022157caa4e570bb4afe82cf3891f6ad9a25028"`
[INFO] running `"docker" "rm" "-f" "5431c2c64412b4006cfa4d7b0022157caa4e570bb4afe82cf3891f6ad9a25028"`
[INFO] [stdout] 5431c2c64412b4006cfa4d7b0022157caa4e570bb4afe82cf3891f6ad9a25028