[INFO] updating cached repository rchaser53/rust_c_playground
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/rchaser53/rust_c_playground
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/rchaser53/rust_c_playground" "work/ex/beta-1.38-1/sources/1.37.0/gh/rchaser53/rust_c_playground"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/rchaser53/rust_c_playground'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/rchaser53/rust_c_playground" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/rchaser53/rust_c_playground"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/rchaser53/rust_c_playground'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 5056a343777609020803285ad08ab56198c58467
[INFO] sha for GitHub repo rchaser53/rust_c_playground: 5056a343777609020803285ad08ab56198c58467
[INFO] validating manifest of rchaser53/rust_c_playground 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 rchaser53/rust_c_playground 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 rchaser53/rust_c_playground
[INFO] finished frobbing rchaser53/rust_c_playground
[INFO] frobbed toml for rchaser53/rust_c_playground written to work/ex/beta-1.38-1/sources/1.37.0/gh/rchaser53/rust_c_playground/Cargo.toml
[INFO] started frobbing rchaser53/rust_c_playground
[INFO] finished frobbing rchaser53/rust_c_playground
[INFO] frobbed toml for rchaser53/rust_c_playground written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/rchaser53/rust_c_playground/Cargo.toml
[INFO] crate rchaser53/rust_c_playground already has a lockfile, it will not be regenerated
[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 rchaser53/rust_c_playground 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/gh/rchaser53/rust_c_playground:/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] e066fbcf19915aac600bb6b758e51da4b8d8688db3bb6ad5c917c0896e1aac1d
[INFO] running `"docker" "start" "-a" "e066fbcf19915aac600bb6b758e51da4b8d8688db3bb6ad5c917c0896e1aac1d"`
[INFO] [stderr]    Compiling libc v0.2.34
[INFO] [stderr]    Compiling rust_c v0.1.0 (/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_c-ba46be5f6371f5cd.rust_c.18z5btot-cgu.0.rcgu.o" "/opt/crater/target/debug/deps/rust_c-ba46be5f6371f5cd.rust_c.18z5btot-cgu.1.rcgu.o" "/opt/crater/target/debug/deps/rust_c-ba46be5f6371f5cd.rust_c.18z5btot-cgu.2.rcgu.o" "/opt/crater/target/debug/deps/rust_c-ba46be5f6371f5cd.rust_c.18z5btot-cgu.3.rcgu.o" "/opt/crater/target/debug/deps/rust_c-ba46be5f6371f5cd.rust_c.18z5btot-cgu.4.rcgu.o" "/opt/crater/target/debug/deps/rust_c-ba46be5f6371f5cd.rust_c.18z5btot-cgu.5.rcgu.o" "-o" "/opt/crater/target/debug/deps/rust_c-ba46be5f6371f5cd" "/opt/crater/target/debug/deps/rust_c-ba46be5f6371f5cd.2mz2m8qqjbp0mjvm.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" "-ltest" "-Wl,-Bstatic" "/opt/crater/target/debug/deps/liblibc-8c466a3b35ae71be.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" "-lutil" "-lutil" "-ldl" "-lrt" "-lpthread" "-lgcc_s" "-lc" "-lm" "-lrt" "-lpthread" "-lutil" "-lutil"
[INFO] [stderr]   = note: /usr/bin/ld: cannot find -ltest
[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_c`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "e066fbcf19915aac600bb6b758e51da4b8d8688db3bb6ad5c917c0896e1aac1d"`
[INFO] running `"docker" "rm" "-f" "e066fbcf19915aac600bb6b758e51da4b8d8688db3bb6ad5c917c0896e1aac1d"`
[INFO] [stdout] e066fbcf19915aac600bb6b758e51da4b8d8688db3bb6ad5c917c0896e1aac1d