[INFO] crate harfbuzz 0.3.1 is already in cache
[INFO] extracting crate harfbuzz 0.3.1 into work/ex/beta-1.37-6/sources/1.36.0/reg/harfbuzz/0.3.1
[INFO] extracting crate harfbuzz 0.3.1 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/harfbuzz/0.3.1
[INFO] validating manifest of harfbuzz-0.3.1 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 harfbuzz-0.3.1 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 harfbuzz-0.3.1
[INFO] finished frobbing harfbuzz-0.3.1
[INFO] frobbed toml for harfbuzz-0.3.1 written to work/ex/beta-1.37-6/sources/1.36.0/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-1.37-6/sources/beta-2019-07-23/reg/harfbuzz/0.3.1/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] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing harfbuzz-0.3.1 against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-0/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/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" "+beta-2019-07-23" "build" "--frozen"`
[INFO] [stdout] 2313b3942644eb26257f01514f922dc6526bcddb7f1090c1b21e25df60a53777
[INFO] running `"docker" "start" "-a" "2313b3942644eb26257f01514f922dc6526bcddb7f1090c1b21e25df60a53777"`
[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 3.22s
[INFO] running `"docker" "inspect" "2313b3942644eb26257f01514f922dc6526bcddb7f1090c1b21e25df60a53777"`
[INFO] running `"docker" "rm" "-f" "2313b3942644eb26257f01514f922dc6526bcddb7f1090c1b21e25df60a53777"`
[INFO] [stdout] 2313b3942644eb26257f01514f922dc6526bcddb7f1090c1b21e25df60a53777
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-0/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/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" "+beta-2019-07-23" "test" "--frozen" "--no-run"`
[INFO] [stdout] 6bfde71c46b766ca061b0a8df7a4b650373c3f3029eaaae3abab49dd31743dc6
[INFO] running `"docker" "start" "-a" "6bfde71c46b766ca061b0a8df7a4b650373c3f3029eaaae3abab49dd31743dc6"`
[INFO] [stderr]    Compiling harfbuzz v0.3.1 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.16s
[INFO] running `"docker" "inspect" "6bfde71c46b766ca061b0a8df7a4b650373c3f3029eaaae3abab49dd31743dc6"`
[INFO] running `"docker" "rm" "-f" "6bfde71c46b766ca061b0a8df7a4b650373c3f3029eaaae3abab49dd31743dc6"`
[INFO] [stdout] 6bfde71c46b766ca061b0a8df7a4b650373c3f3029eaaae3abab49dd31743dc6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-0/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/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" "+beta-2019-07-23" "test" "--frozen"`
[INFO] [stdout] 42ba0eda0590e29686625c6384c8939aabd7c50a459f00c29b5de1767a9883e5
[INFO] running `"docker" "start" "-a" "42ba0eda0590e29686625c6384c8939aabd7c50a459f00c29b5de1767a9883e5"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/harfbuzz-27b5187ac244ed94
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test language::tests::test_lookup ... ok
[INFO] [stderr]    Doc-tests harfbuzz
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 9 tests
[INFO] [stdout] test src/buffer.rs - buffer::Buffer::guess_segment_properties (line 207) ... ok
[INFO] [stdout] test src/buffer.rs - buffer::Buffer::new (line 83) ... ok
[INFO] [stdout] test src/buffer.rs - buffer::Buffer (line 31) ... ok
[INFO] [stdout] test src/buffer.rs - buffer::Buffer (line 22) ... ok
[INFO] [stdout] test src/blob.rs - blob::Blob::new_from_arc_vec (line 58) ... ok
[INFO] [stdout] test src/buffer.rs - buffer::Buffer::append (line 138) ... FAILED
[INFO] [stdout] test src/buffer.rs - buffer::Buffer (line 59) ... ok
[INFO] [stdout] test src/blob.rs - blob::Blob::new_read_only (line 32) ... 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/beta-2019-07-23-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "/tmp/rustdoctesthM6W3Y/rust_out.rust_out.7rcbfp3g-cgu.0.rcgu.o" "/tmp/rustdoctesthM6W3Y/rust_out.rust_out.7rcbfp3g-cgu.1.rcgu.o" "/tmp/rustdoctesthM6W3Y/rust_out.rust_out.7rcbfp3g-cgu.2.rcgu.o" "/tmp/rustdoctesthM6W3Y/rust_out.rust_out.7rcbfp3g-cgu.3.rcgu.o" "/tmp/rustdoctesthM6W3Y/rust_out.rust_out.7rcbfp3g-cgu.4.rcgu.o" "/tmp/rustdoctesthM6W3Y/rust_out.rust_out.7rcbfp3g-cgu.5.rcgu.o" "/tmp/rustdoctesthM6W3Y/rust_out.rust_out.7rcbfp3g-cgu.6.rcgu.o" "/tmp/rustdoctesthM6W3Y/rust_out.rust_out.7rcbfp3g-cgu.7.rcgu.o" "-o" "/tmp/rustdoctesthM6W3Y/rust_out" "/tmp/rustdoctesthM6W3Y/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-778de5ab0b3943ad/out/lib" "-L" "/usr/lib/x86_64-linux-gnu" "-L" "/opt/crater/target/debug/deps" "-L" "/opt/crater/rustup-home/toolchains/beta-2019-07-23-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/opt/crater/target/debug/deps/libharfbuzz-554c78c921f83138.rlib" "/opt/crater/target/debug/deps/libharfbuzz_sys-4459bbf531c5b0e1.rlib" "/opt/crater/target/debug/deps/libfreetype-e7b2eb0adf50d407.rlib" "/opt/crater/target/debug/deps/liblibc-15b143653abd1ffe.rlib" "/opt/crater/target/debug/deps/libfreetype_sys-567919b1b7d1a7be.rlib" "-Wl,--start-group" "/opt/crater/rustup-home/toolchains/beta-2019-07-23-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-a80a1e8e09cafef8.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-07-23-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-e0e6351da805c468.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-07-23-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libbacktrace-e04f54bafc95e331.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-07-23-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libbacktrace_sys-67901d3322495bd5.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-07-23-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-bd390b1abaceaec1.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-07-23-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-312dd37fdc7bedfc.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-07-23-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-8ed0e51d58d644a3.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-07-23-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-8a423c320a6c707f.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-07-23-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcfg_if-d6a95598e2238263.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-07-23-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-d231614b153016eb.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-07-23-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-3821619027f463e4.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-07-23-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-1cfd794d18771a44.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-07-23-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-dcf33cf10c2452ef.rlib" "-Wl,--end-group" "/opt/crater/rustup-home/toolchains/beta-2019-07-23-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-c258fea34bf64bce.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-554c78c921f83138.rlib(harfbuzz-554c78c921f83138.harfbuzz.dhfnhze9-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" "42ba0eda0590e29686625c6384c8939aabd7c50a459f00c29b5de1767a9883e5"`
[INFO] running `"docker" "rm" "-f" "42ba0eda0590e29686625c6384c8939aabd7c50a459f00c29b5de1767a9883e5"`
[INFO] [stdout] 42ba0eda0590e29686625c6384c8939aabd7c50a459f00c29b5de1767a9883e5