[INFO] crate curb 0.1.5 is already in cache
[INFO] extracting crate curb 0.1.5 into work/ex/beta-1.38-1/sources/1.37.0/reg/curb/0.1.5
[INFO] extracting crate curb 0.1.5 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/curb/0.1.5
[INFO] validating manifest of curb-0.1.5 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 curb-0.1.5 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 curb-0.1.5
[INFO] finished frobbing curb-0.1.5
[INFO] frobbed toml for curb-0.1.5 written to work/ex/beta-1.38-1/sources/1.37.0/reg/curb/0.1.5/Cargo.toml
[INFO] started frobbing curb-0.1.5
[INFO] finished frobbing curb-0.1.5
[INFO] frobbed toml for curb-0.1.5 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/curb/0.1.5/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 curb-0.1.5 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-2/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/curb/0.1.5:/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] e8eb60394dacf92177a04076e52cfb306e8a2712b2b747ab4f34bb4419a0bd80
[INFO] running `"docker" "start" "-a" "e8eb60394dacf92177a04076e52cfb306e8a2712b2b747ab4f34bb4419a0bd80"`
[INFO] [stderr]    Compiling hwloc v0.5.0
[INFO] [stderr]    Compiling errno v0.2.4
[INFO] [stderr]    Compiling curb v0.1.5 (/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/curb-b77942a95c437e46.curb.clmu5w9a-cgu.0.rcgu.o" "/opt/crater/target/debug/deps/curb-b77942a95c437e46.curb.clmu5w9a-cgu.1.rcgu.o" "/opt/crater/target/debug/deps/curb-b77942a95c437e46.curb.clmu5w9a-cgu.10.rcgu.o" "/opt/crater/target/debug/deps/curb-b77942a95c437e46.curb.clmu5w9a-cgu.11.rcgu.o" "/opt/crater/target/debug/deps/curb-b77942a95c437e46.curb.clmu5w9a-cgu.12.rcgu.o" "/opt/crater/target/debug/deps/curb-b77942a95c437e46.curb.clmu5w9a-cgu.13.rcgu.o" "/opt/crater/target/debug/deps/curb-b77942a95c437e46.curb.clmu5w9a-cgu.14.rcgu.o" "/opt/crater/target/debug/deps/curb-b77942a95c437e46.curb.clmu5w9a-cgu.15.rcgu.o" "/opt/crater/target/debug/deps/curb-b77942a95c437e46.curb.clmu5w9a-cgu.2.rcgu.o" "/opt/crater/target/debug/deps/curb-b77942a95c437e46.curb.clmu5w9a-cgu.3.rcgu.o" "/opt/crater/target/debug/deps/curb-b77942a95c437e46.curb.clmu5w9a-cgu.4.rcgu.o" "/opt/crater/target/debug/deps/curb-b77942a95c437e46.curb.clmu5w9a-cgu.5.rcgu.o" "/opt/crater/target/debug/deps/curb-b77942a95c437e46.curb.clmu5w9a-cgu.6.rcgu.o" "/opt/crater/target/debug/deps/curb-b77942a95c437e46.curb.clmu5w9a-cgu.7.rcgu.o" "/opt/crater/target/debug/deps/curb-b77942a95c437e46.curb.clmu5w9a-cgu.8.rcgu.o" "/opt/crater/target/debug/deps/curb-b77942a95c437e46.curb.clmu5w9a-cgu.9.rcgu.o" "-o" "/opt/crater/target/debug/deps/curb-b77942a95c437e46" "/opt/crater/target/debug/deps/curb-b77942a95c437e46.50o8n3ba465sjhxr.rcgu.o" "-Wl,--gc-sections" "-pie" "-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" "-Wl,-Bstatic" "/opt/crater/target/debug/deps/libhwloc-54ab73849928926f.rlib" "/opt/crater/target/debug/deps/libnum-a5efe8b19f8dba1e.rlib" "/opt/crater/target/debug/deps/libnum_iter-161e13ffd3321f27.rlib" "/opt/crater/target/debug/deps/libnum_integer-440f23443e3e87b1.rlib" "/opt/crater/target/debug/deps/libnum_traits-c28daeab5210b49d.rlib" "/opt/crater/target/debug/deps/liberrno-3ac41d9f3045f9e7.rlib" "/opt/crater/target/debug/deps/libbitflags-b03ee8d07369378c.rlib" "/opt/crater/target/debug/deps/libstructopt-e760b3593589846a.rlib" "/opt/crater/target/debug/deps/libclap-946176546f1bfef1.rlib" "/opt/crater/target/debug/deps/libvec_map-dfe47d7ef870925b.rlib" "/opt/crater/target/debug/deps/libtextwrap-648e6ff45e87fdf7.rlib" "/opt/crater/target/debug/deps/libunicode_width-c482f247a0e67224.rlib" "/opt/crater/target/debug/deps/libstrsim-71052c127de7173f.rlib" "/opt/crater/target/debug/deps/libbitflags-c2b055ef483e7b37.rlib" "/opt/crater/target/debug/deps/libatty-22eb3b2ac1d714c2.rlib" "/opt/crater/target/debug/deps/libansi_term-8091014737d4fb0a.rlib" "/opt/crater/target/debug/deps/librand-0a4630b57dcc57b3.rlib" "/opt/crater/target/debug/deps/librand_xorshift-aba648178ccafa60.rlib" "/opt/crater/target/debug/deps/librand_pcg-ed671db4fe3757e2.rlib" "/opt/crater/target/debug/deps/librand_hc-9a65771b9d152351.rlib" "/opt/crater/target/debug/deps/librand_chacha-1b9e58560472e74b.rlib" "/opt/crater/target/debug/deps/librand_isaac-3807d01c3a327700.rlib" "/opt/crater/target/debug/deps/librand_core-4eee27b20de9a341.rlib" "/opt/crater/target/debug/deps/librand_os-4634e01c13ceff4d.rlib" "/opt/crater/target/debug/deps/liblibc-37f3d1c853b3b7bd.rlib" "/opt/crater/target/debug/deps/librand_jitter-a13c2857ac7f2734.rlib" "/opt/crater/target/debug/deps/librand_core-a5a514f3409fd81c.rlib" "-Wl,--start-group" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-1d6d86bd078a28e9.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-e9721e46a424e2a9.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libbacktrace-c07193698f282147.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libbacktrace_sys-6da45690f3863086.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-690797036dd27680.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-d3896ccbfd8eda2b.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-7cccc3739e3d7623.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-5e9ba178a513cd29.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcfg_if-5ca9f83bf63d1f4b.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-bba1c7ef9e950882.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-e23c9de62012deb5.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-9b59dffdcd513d5d.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-17392340ab2e4a97.rlib" "-Wl,--end-group" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-ac21508a81e3f7f3.rlib" "-Wl,-Bdynamic" "-lhwloc" "-lutil" "-lutil" "-ldl" "-lrt" "-lpthread" "-lgcc_s" "-lc" "-lm" "-lrt" "-lpthread" "-lutil" "-lutil"
[INFO] [stderr]   = note: /usr/bin/ld: cannot find -lhwloc
[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 `curb`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "e8eb60394dacf92177a04076e52cfb306e8a2712b2b747ab4f34bb4419a0bd80"`
[INFO] running `"docker" "rm" "-f" "e8eb60394dacf92177a04076e52cfb306e8a2712b2b747ab4f34bb4419a0bd80"`
[INFO] [stdout] e8eb60394dacf92177a04076e52cfb306e8a2712b2b747ab4f34bb4419a0bd80