[INFO] crate harfbuzz 0.3.1 is already in cache
[INFO] extracting crate harfbuzz 0.3.1 into work/ex/beta-1.38-1/sources/1.37.0/reg/harfbuzz/0.3.1
[INFO] extracting crate harfbuzz 0.3.1 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/harfbuzz/0.3.1
[INFO] validating manifest of harfbuzz-0.3.1 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 harfbuzz-0.3.1 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 harfbuzz-0.3.1
[INFO] finished frobbing harfbuzz-0.3.1
[INFO] frobbed toml for harfbuzz-0.3.1 written to work/ex/beta-1.38-1/sources/1.37.0/reg/harfbuzz/0.3.1/Cargo.toml
[INFO] started frobbing harfbuzz-0.3.1
[INFO] finished frobbing harfbuzz-0.3.1
[INFO] frobbed toml for harfbuzz-0.3.1 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/harfbuzz/0.3.1/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 harfbuzz-0.3.1 against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/harfbuzz/0.3.1:/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] 4ad33831eb3acae313a34eeb1cfa4da87c6137fc844cf334676df6657c8140b9
[INFO] running `"docker" "start" "-a" "4ad33831eb3acae313a34eeb1cfa4da87c6137fc844cf334676df6657c8140b9"`
[INFO] [stderr]    Compiling harfbuzz-sys v0.3.2
[INFO] [stderr]    Compiling freetype v0.4.1
[INFO] [stderr]    Compiling harfbuzz v0.3.1 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.47s
[INFO] running `"docker" "inspect" "4ad33831eb3acae313a34eeb1cfa4da87c6137fc844cf334676df6657c8140b9"`
[INFO] running `"docker" "rm" "-f" "4ad33831eb3acae313a34eeb1cfa4da87c6137fc844cf334676df6657c8140b9"`
[INFO] [stdout] 4ad33831eb3acae313a34eeb1cfa4da87c6137fc844cf334676df6657c8140b9
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/harfbuzz/0.3.1:/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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 8c9091c2637ed4ed737d8c30f100e414fe23041571979289db126230ee6299fb
[INFO] running `"docker" "start" "-a" "8c9091c2637ed4ed737d8c30f100e414fe23041571979289db126230ee6299fb"`
[INFO] [stderr]    Compiling harfbuzz v0.3.1 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.94s
[INFO] running `"docker" "inspect" "8c9091c2637ed4ed737d8c30f100e414fe23041571979289db126230ee6299fb"`
[INFO] running `"docker" "rm" "-f" "8c9091c2637ed4ed737d8c30f100e414fe23041571979289db126230ee6299fb"`
[INFO] [stdout] 8c9091c2637ed4ed737d8c30f100e414fe23041571979289db126230ee6299fb
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/harfbuzz/0.3.1:/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" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] 179135b0fed5052c8081ff60b3353eb3bed1c63c89b720b27071b871876d7a0e
[INFO] running `"docker" "start" "-a" "179135b0fed5052c8081ff60b3353eb3bed1c63c89b720b27071b871876d7a0e"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/harfbuzz-416e7c6bb211b4cf
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test language::tests::test_lookup ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests harfbuzz
[INFO] [stdout] 
[INFO] [stdout] running 9 tests
[INFO] [stdout] test src/blob.rs - blob::Blob::new_read_only (line 32) ... ok
[INFO] [stdout] test src/buffer.rs - buffer::Buffer::new (line 83) ... ok
[INFO] [stdout] test src/buffer.rs - buffer::Buffer (line 59) ... ok
[INFO] [stdout] test src/buffer.rs - buffer::Buffer (line 31) ... ok
[INFO] [stdout] test src/buffer.rs - buffer::Buffer::append (line 138) ... FAILED
[INFO] [stdout] test src/buffer.rs - buffer::Buffer (line 22) ... ok
[INFO] [stdout] test src/buffer.rs - buffer::Buffer::guess_segment_properties (line 207) ... ok
[INFO] [stdout] test src/blob.rs - blob::Blob::new_from_arc_vec (line 58) ... ok
[INFO] [stdout] test src/direction.rs - direction::Direction (line 19) ... ok
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/buffer.rs - buffer::Buffer::append (line 138) stdout ----
[INFO] [stdout] error: linking with `cc` failed: exit code: 1
[INFO] [stdout]   |
[INFO] [stdout]   = note: "cc" "-Wl,--as-needed" "-Wl,-z,noexecstack" "-m64" "-L" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "/tmp/rustdoctestSc2F3U/rust_out.rust_out.7rcbfp3g-cgu.0.rcgu.o" "/tmp/rustdoctestSc2F3U/rust_out.rust_out.7rcbfp3g-cgu.1.rcgu.o" "/tmp/rustdoctestSc2F3U/rust_out.rust_out.7rcbfp3g-cgu.2.rcgu.o" "/tmp/rustdoctestSc2F3U/rust_out.rust_out.7rcbfp3g-cgu.3.rcgu.o" "/tmp/rustdoctestSc2F3U/rust_out.rust_out.7rcbfp3g-cgu.4.rcgu.o" "/tmp/rustdoctestSc2F3U/rust_out.rust_out.7rcbfp3g-cgu.5.rcgu.o" "/tmp/rustdoctestSc2F3U/rust_out.rust_out.7rcbfp3g-cgu.6.rcgu.o" "/tmp/rustdoctestSc2F3U/rust_out.rust_out.7rcbfp3g-cgu.7.rcgu.o" "-o" "/tmp/rustdoctestSc2F3U/rust_out" "/tmp/rustdoctestSc2F3U/rust_out.33dyzt1ekirinwy8.rcgu.o" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs" "-L" "/opt/crater/target/debug/deps" "-L" "/opt/crater/target/debug/build/servo-freetype-sys-a03302728977bfea/out/lib" "-L" "/usr/lib/x86_64-linux-gnu" "-L" "/opt/crater/target/debug/deps" "-L" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/opt/crater/target/debug/deps/libharfbuzz-1f9f3abbb67c5964.rlib" "/opt/crater/target/debug/deps/libharfbuzz_sys-eeb569329ab999fc.rlib" "/opt/crater/target/debug/deps/libfreetype-5871f9db6eebccd2.rlib" "/opt/crater/target/debug/deps/liblibc-d019039477cac03b.rlib" "/opt/crater/target/debug/deps/libfreetype_sys-d0d7172b455b7c4b.rlib" "-Wl,--start-group" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-4a76ff35a356aedf.rlib" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-e11c7b3b3225afe2.rlib" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libbacktrace-13217ede3d276f16.rlib" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libbacktrace_sys-621a9ee22da6caa1.rlib" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-546c844e8071bbeb.rlib" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-be9569e4d599746f.rlib" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-47d8845cef2a3bc5.rlib" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-017511bce73a530c.rlib" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcfg_if-be7979c57a08057b.rlib" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-d6459c4f0817c67c.rlib" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-580035dd98451925.rlib" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-aee5c24fff305dea.rlib" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-8a55a4098920125a.rlib" "-Wl,--end-group" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-9fc4b5be2ba5cc19.rlib" "-Wl,-Bdynamic" "-lharfbuzz" "-lutil" "-lutil" "-ldl" "-lrt" "-lpthread" "-lgcc_s" "-lc" "-lm" "-lrt" "-lpthread" "-lutil" "-lutil"
[INFO] [stdout]   = note: /opt/crater/target/debug/deps/libharfbuzz-1f9f3abbb67c5964.rlib(harfbuzz-1f9f3abbb67c5964.harfbuzz.7gzii7ay-cgu.2.rcgu.o): In function `harfbuzz::buffer::Buffer::append':
[INFO] [stdout]           /opt/crater/workdir/src/buffer.rs:147: undefined reference to `hb_buffer_append'
[INFO] [stdout]           collect2: error: ld returned 1 exit status
[INFO] [stdout]           
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/buffer.rs - buffer::Buffer::append (line 138)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 8 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] running `"docker" "inspect" "179135b0fed5052c8081ff60b3353eb3bed1c63c89b720b27071b871876d7a0e"`
[INFO] running `"docker" "rm" "-f" "179135b0fed5052c8081ff60b3353eb3bed1c63c89b720b27071b871876d7a0e"`
[INFO] [stdout] 179135b0fed5052c8081ff60b3353eb3bed1c63c89b720b27071b871876d7a0e