[INFO] crate cdbd 0.1.1 is already in cache [INFO] extracting crate cdbd 0.1.1 into work/ex/beta-1.37-6/sources/1.36.0/reg/cdbd/0.1.1 [INFO] extracting crate cdbd 0.1.1 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/cdbd/0.1.1 [INFO] validating manifest of cdbd-0.1.1 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 cdbd-0.1.1 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 cdbd-0.1.1 [INFO] finished frobbing cdbd-0.1.1 [INFO] frobbed toml for cdbd-0.1.1 written to work/ex/beta-1.37-6/sources/1.36.0/reg/cdbd/0.1.1/Cargo.toml [INFO] started frobbing cdbd-0.1.1 [INFO] finished frobbing cdbd-0.1.1 [INFO] frobbed toml for cdbd-0.1.1 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/cdbd/0.1.1/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 cdbd-0.1.1 against 1.36.0 for beta-1.37-6 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-7/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/cdbd/0.1.1:/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" "+1.36.0" "build" "--frozen"` [INFO] [stdout] eb51160eea51d74015fc4e9a468a7d81dea922a550d2352c470990bc769ab698 [INFO] running `"docker" "start" "-a" "eb51160eea51d74015fc4e9a468a7d81dea922a550d2352c470990bc769ab698"` [INFO] [stderr] Compiling memchr v2.2.1 [INFO] [stderr] Compiling tinycdb-sys v0.0.2 [INFO] [stderr] Compiling ucd-util v0.1.5 [INFO] [stderr] Compiling regex v0.2.11 [INFO] [stderr] Compiling utf8-ranges v1.0.3 [INFO] [stderr] Compiling objpool v0.2.0 [INFO] [stderr] Compiling thread_local v0.3.6 [INFO] [stderr] Compiling mtbl-sys v0.2.0 [INFO] [stderr] Compiling mtbl v0.2.1 [INFO] [stderr] Compiling fern v0.4.4 [INFO] [stderr] Compiling regex-syntax v0.5.6 [INFO] [stderr] Compiling tinycdb v0.0.7 [INFO] [stderr] Compiling aho-corasick v0.6.10 [INFO] [stderr] Compiling cdbd v0.1.1 (/opt/crater/workdir) [INFO] [stderr] warning: unused return value of `std::iter::Iterator::collect` that must be used [INFO] [stderr] --> src/kvstore/cdb.rs:15:5 [INFO] [stderr] | [INFO] [stderr] 15 | (0..pool_size).map(|_: usize| (*pool).get()).collect::>(); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_must_use)] on by default [INFO] [stderr] = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead [INFO] [stderr] [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/1.36.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "/opt/crater/target/debug/deps/cdbd-548592ce11035582.cdbd.70lek0ca-cgu.0.rcgu.o" "/opt/crater/target/debug/deps/cdbd-548592ce11035582.cdbd.70lek0ca-cgu.1.rcgu.o" "/opt/crater/target/debug/deps/cdbd-548592ce11035582.cdbd.70lek0ca-cgu.10.rcgu.o" "/opt/crater/target/debug/deps/cdbd-548592ce11035582.cdbd.70lek0ca-cgu.11.rcgu.o" "/opt/crater/target/debug/deps/cdbd-548592ce11035582.cdbd.70lek0ca-cgu.12.rcgu.o" "/opt/crater/target/debug/deps/cdbd-548592ce11035582.cdbd.70lek0ca-cgu.13.rcgu.o" "/opt/crater/target/debug/deps/cdbd-548592ce11035582.cdbd.70lek0ca-cgu.14.rcgu.o" "/opt/crater/target/debug/deps/cdbd-548592ce11035582.cdbd.70lek0ca-cgu.15.rcgu.o" "/opt/crater/target/debug/deps/cdbd-548592ce11035582.cdbd.70lek0ca-cgu.2.rcgu.o" "/opt/crater/target/debug/deps/cdbd-548592ce11035582.cdbd.70lek0ca-cgu.3.rcgu.o" "/opt/crater/target/debug/deps/cdbd-548592ce11035582.cdbd.70lek0ca-cgu.4.rcgu.o" "/opt/crater/target/debug/deps/cdbd-548592ce11035582.cdbd.70lek0ca-cgu.5.rcgu.o" "/opt/crater/target/debug/deps/cdbd-548592ce11035582.cdbd.70lek0ca-cgu.6.rcgu.o" "/opt/crater/target/debug/deps/cdbd-548592ce11035582.cdbd.70lek0ca-cgu.7.rcgu.o" "/opt/crater/target/debug/deps/cdbd-548592ce11035582.cdbd.70lek0ca-cgu.8.rcgu.o" "/opt/crater/target/debug/deps/cdbd-548592ce11035582.cdbd.70lek0ca-cgu.9.rcgu.o" "-o" "/opt/crater/target/debug/deps/cdbd-548592ce11035582" "/opt/crater/target/debug/deps/cdbd-548592ce11035582.1jr8l2m8z0zj54ke.rcgu.o" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs" "-L" "/opt/crater/target/debug/deps" "-L" "/opt/crater/target/debug/build/tinycdb-sys-7badee0c0cd0c7c8/out" "-L" "/opt/crater/rustup-home/toolchains/1.36.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/opt/crater/target/debug/deps/libtinycdb-cb132b6b8b714e06.rlib" "/opt/crater/target/debug/deps/libtinycdb_sys-801b8763a773ffde.rlib" "/opt/crater/target/debug/deps/libtime-4355d8e50100aa43.rlib" "/opt/crater/target/debug/deps/libregex-26fb8674d142841d.rlib" "/opt/crater/target/debug/deps/libutf8_ranges-c6a873325be34359.rlib" "/opt/crater/target/debug/deps/libregex_syntax-9f366e6fcd5f9b6c.rlib" "/opt/crater/target/debug/deps/libucd_util-4ceb5a30356a8267.rlib" "/opt/crater/target/debug/deps/libthread_local-0d1f504ec86ae5ec.rlib" "/opt/crater/target/debug/deps/liblazy_static-35422c5bca3b6d90.rlib" "/opt/crater/target/debug/deps/libaho_corasick-8662fb1d0f3bd23a.rlib" "/opt/crater/target/debug/deps/libmemchr-603e105d3530919e.rlib" "/opt/crater/target/debug/deps/libobjpool-018235145d785e5d.rlib" "/opt/crater/target/debug/deps/libnum_cpus-84b2b9d4899d054a.rlib" "/opt/crater/target/debug/deps/libmtbl-e6b3fb59b9a6cc3b.rlib" "/opt/crater/target/debug/deps/libmtbl_sys-9b4c6ab1ebd5b792.rlib" "/opt/crater/target/debug/deps/liblibc-e3ba75b536aabfa5.rlib" "/opt/crater/target/debug/deps/libgetopts-65cdc9b816a721d2.rlib" "/opt/crater/target/debug/deps/libunicode_width-26f3734d51bc29d0.rlib" "/opt/crater/target/debug/deps/libfern-905e32631fb48e15.rlib" "/opt/crater/target/debug/deps/liblog-a60233c9189805c1.rlib" "/opt/crater/target/debug/deps/liblog-481c00b0f76d55f6.rlib" "/opt/crater/target/debug/deps/libcfg_if-29b6f8db75d699b1.rlib" "/opt/crater/target/debug/deps/libbyteorder-1ca0e27fd3a97256.rlib" "-Wl,--start-group" "/opt/crater/rustup-home/toolchains/1.36.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-9895e8982b0a79e7.rlib" "/opt/crater/rustup-home/toolchains/1.36.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-57306b8ed3378a0e.rlib" "/opt/crater/rustup-home/toolchains/1.36.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libbacktrace_sys-54463ae5adae3649.rlib" "/opt/crater/rustup-home/toolchains/1.36.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-d99667b199a9875a.rlib" "/opt/crater/rustup-home/toolchains/1.36.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-51f4300e102199f5.rlib" "/opt/crater/rustup-home/toolchains/1.36.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-b3ccf1f7737a6a91.rlib" "/opt/crater/rustup-home/toolchains/1.36.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-157c37a3ceb78853.rlib" "/opt/crater/rustup-home/toolchains/1.36.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-505bcee45aafb736.rlib" "/opt/crater/rustup-home/toolchains/1.36.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-c29abd529ba4452b.rlib" "/opt/crater/rustup-home/toolchains/1.36.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-895383a3232f6572.rlib" "/opt/crater/rustup-home/toolchains/1.36.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-5594cb4f559bc761.rlib" "-Wl,--end-group" "/opt/crater/rustup-home/toolchains/1.36.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-38e90baf978bc428.rlib" "-Wl,-Bdynamic" "-lmtbl" "-lutil" "-lutil" "-ldl" "-lrt" "-lpthread" "-lgcc_s" "-lc" "-lm" "-lrt" "-lpthread" "-lutil" "-lutil" [INFO] [stderr] = note: /usr/bin/ld: cannot find -lmtbl [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 `cdbd`. [INFO] [stderr] [INFO] [stderr] To learn more, run the command again with --verbose. [INFO] running `"docker" "inspect" "eb51160eea51d74015fc4e9a468a7d81dea922a550d2352c470990bc769ab698"` [INFO] running `"docker" "rm" "-f" "eb51160eea51d74015fc4e9a468a7d81dea922a550d2352c470990bc769ab698"` [INFO] [stdout] eb51160eea51d74015fc4e9a468a7d81dea922a550d2352c470990bc769ab698