[INFO] fetching crate librsync-ffi 0.1.0...
[INFO] testing librsync-ffi-0.1.0 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate librsync-ffi 0.1.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate librsync-ffi 0.1.0 on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate librsync-ffi 0.1.0
[INFO] finished tweaking crates.io crate librsync-ffi 0.1.0
[INFO] tweaked toml for crates.io crate librsync-ffi 0.1.0 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f0fd7a7f0eda1848920a0312df1e9147772cf1526c99e7f61364b1e01e44ec7a
[INFO] running `Command { std: "docker" "start" "-a" "f0fd7a7f0eda1848920a0312df1e9147772cf1526c99e7f61364b1e01e44ec7a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f0fd7a7f0eda1848920a0312df1e9147772cf1526c99e7f61364b1e01e44ec7a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f0fd7a7f0eda1848920a0312df1e9147772cf1526c99e7f61364b1e01e44ec7a", kill_on_drop: false }`
[INFO] [stdout] f0fd7a7f0eda1848920a0312df1e9147772cf1526c99e7f61364b1e01e44ec7a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] aa7b67b5f4495c045d9fd3ad4845d7a20617b7b1b96859a06dd26ed9595ecfa0
[INFO] running `Command { std: "docker" "start" "-a" "aa7b67b5f4495c045d9fd3ad4845d7a20617b7b1b96859a06dd26ed9595ecfa0", kill_on_drop: false }`
[INFO] [stderr]    Compiling librsync-ffi v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/file/patch.rs:31:9
[INFO] [stdout]    |
[INFO] [stdout] 31 |         file.write_all(delta.borrow().into());
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/file/patch.rs:49:5
[INFO] [stdout]    |
[INFO] [stdout] 49 |     file.read_to_end(&mut output);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.29s
[INFO] running `Command { std: "docker" "inspect" "aa7b67b5f4495c045d9fd3ad4845d7a20617b7b1b96859a06dd26ed9595ecfa0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aa7b67b5f4495c045d9fd3ad4845d7a20617b7b1b96859a06dd26ed9595ecfa0", kill_on_drop: false }`
[INFO] [stdout] aa7b67b5f4495c045d9fd3ad4845d7a20617b7b1b96859a06dd26ed9595ecfa0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4ff50148767b8d9c789048fee5200c8473574256add7aa51d47e5c4a19dfd574
[INFO] running `Command { std: "docker" "start" "-a" "4ff50148767b8d9c789048fee5200c8473574256add7aa51d47e5c4a19dfd574", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling librsync-ffi v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/file/patch.rs:31:9
[INFO] [stdout]    |
[INFO] [stdout] 31 |         file.write_all(delta.borrow().into());
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/file/patch.rs:49:5
[INFO] [stdout]    |
[INFO] [stdout] 49 |     file.read_to_end(&mut output);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/file/patch.rs:31:9
[INFO] [stdout]    |
[INFO] [stdout] 31 |         file.write_all(delta.borrow().into());
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/file/patch.rs:49:5
[INFO] [stdout]    |
[INFO] [stdout] 49 |     file.read_to_end(&mut output);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `librsync-ffi` due to 2 previous errors; 2 warnings emitted
[INFO] [stdout] error: linking with `cc` failed: exit status: 1
[INFO] [stdout]   |
[INFO] [stdout]   = note: "cc" "-m64" "/opt/rustwide/target/debug/deps/librsync_ffi-1bae5edc759d774d.librsync_ffi.0afd7702-cgu.0.rcgu.o" "/opt/rustwide/target/debug/deps/librsync_ffi-1bae5edc759d774d.librsync_ffi.0afd7702-cgu.1.rcgu.o" "/opt/rustwide/target/debug/deps/librsync_ffi-1bae5edc759d774d.librsync_ffi.0afd7702-cgu.10.rcgu.o" "/opt/rustwide/target/debug/deps/librsync_ffi-1bae5edc759d774d.librsync_ffi.0afd7702-cgu.11.rcgu.o" "/opt/rustwide/target/debug/deps/librsync_ffi-1bae5edc759d774d.librsync_ffi.0afd7702-cgu.12.rcgu.o" "/opt/rustwide/target/debug/deps/librsync_ffi-1bae5edc759d774d.librsync_ffi.0afd7702-cgu.13.rcgu.o" "/opt/rustwide/target/debug/deps/librsync_ffi-1bae5edc759d774d.librsync_ffi.0afd7702-cgu.14.rcgu.o" "/opt/rustwide/target/debug/deps/librsync_ffi-1bae5edc759d774d.librsync_ffi.0afd7702-cgu.15.rcgu.o" "/opt/rustwide/target/debug/deps/librsync_ffi-1bae5edc759d774d.librsync_ffi.0afd7702-cgu.2.rcgu.o" "/opt/rustwide/target/debug/deps/librsync_ffi-1bae5edc759d774d.librsync_ffi.0afd7702-cgu.3.rcgu.o" "/opt/rustwide/target/debug/deps/librsync_ffi-1bae5edc759d774d.librsync_ffi.0afd7702-cgu.4.rcgu.o" "/opt/rustwide/target/debug/deps/librsync_ffi-1bae5edc759d774d.librsync_ffi.0afd7702-cgu.5.rcgu.o" "/opt/rustwide/target/debug/deps/librsync_ffi-1bae5edc759d774d.librsync_ffi.0afd7702-cgu.6.rcgu.o" "/opt/rustwide/target/debug/deps/librsync_ffi-1bae5edc759d774d.librsync_ffi.0afd7702-cgu.7.rcgu.o" "/opt/rustwide/target/debug/deps/librsync_ffi-1bae5edc759d774d.librsync_ffi.0afd7702-cgu.8.rcgu.o" "/opt/rustwide/target/debug/deps/librsync_ffi-1bae5edc759d774d.librsync_ffi.0afd7702-cgu.9.rcgu.o" "/opt/rustwide/target/debug/deps/librsync_ffi-1bae5edc759d774d.4yhlfwk2i2wlsm6g.rcgu.o" "-Wl,--as-needed" "-L" "/opt/rustwide/target/debug/deps" "-L" "/opt/rustwide/rustup-home/toolchains/beta-2021-09-08-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-lrsync" "-Wl,-Bstatic" "/opt/rustwide/rustup-home/toolchains/beta-2021-09-08-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libtest-af71f5d5e2187f62.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-09-08-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libgetopts-976ae3a75486bc7b.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-09-08-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunicode_width-638f891af6f9e3c4.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-09-08-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_std-52ee1e0bb1279132.rlib" "/opt/rustwide/target/debug/deps/libtempfile-150c46338fbc16f2.rlib" "/opt/rustwide/target/debug/deps/librand-103265e50e195195.rlib" "/opt/rustwide/target/debug/deps/librand_chacha-81c181a39752caab.rlib" "/opt/rustwide/target/debug/deps/libppv_lite86-4b4e10d54e032e24.rlib" "/opt/rustwide/target/debug/deps/librand_core-f13fd72f26d83f4c.rlib" "/opt/rustwide/target/debug/deps/libgetrandom-63d1d99e11cf9c6c.rlib" "/opt/rustwide/target/debug/deps/libremove_dir_all-428e6ddc575f6574.rlib" "/opt/rustwide/target/debug/deps/libcfg_if-97437e183f3ae6e4.rlib" "/opt/rustwide/target/debug/deps/liblibc-0ec3a1d3f48b901b.rlib" "-Wl,--start-group" "/opt/rustwide/rustup-home/toolchains/beta-2021-09-08-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-9a950938f3668a37.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-09-08-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-3b1b529ec96b3df7.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-09-08-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libminiz_oxide-ac333df4e6839cea.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-09-08-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libadler-22a9ff9d2be6d427.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-09-08-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libobject-5decbb94c7d60860.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-09-08-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libmemchr-29a9663b62a1cd00.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-09-08-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libaddr2line-6f0cee0dbab2d3f8.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-09-08-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libgimli-f5dc7d1d28c5c249.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-09-08-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd_detect-d19bda9ef557e755.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-09-08-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-82a955fd13db2399.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-09-08-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-44f3e7c1b7cc17ef.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-09-08-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-3ee6f750c5f3c2cf.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-09-08-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-ae5e1795dcba83e8.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-09-08-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcfg_if-8d545d8592f2b534.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-09-08-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-c4c222675f83fd37.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-09-08-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-c1e9c53e75e301ed.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-09-08-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-beea7d9617fe25c5.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-09-08-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-8ef7dd43fc671f88.rlib" "-Wl,--end-group" "/opt/rustwide/rustup-home/toolchains/beta-2021-09-08-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-80a2b295510dd038.rlib" "-Wl,-Bdynamic" "-lgcc_s" "-lutil" "-lrt" "-lpthread" "-lm" "-ldl" "-lc" "-Wl,--eh-frame-hdr" "-Wl,-znoexecstack" "-L" "/opt/rustwide/rustup-home/toolchains/beta-2021-09-08-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-o" "/opt/rustwide/target/debug/deps/librsync_ffi-1bae5edc759d774d" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs"
[INFO] [stdout]   = note: /usr/bin/ld: cannot find -lrsync
[INFO] [stdout]           collect2: error: ld returned 1 exit status
[INFO] [stdout]           
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "4ff50148767b8d9c789048fee5200c8473574256add7aa51d47e5c4a19dfd574", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4ff50148767b8d9c789048fee5200c8473574256add7aa51d47e5c4a19dfd574", kill_on_drop: false }`
[INFO] [stdout] 4ff50148767b8d9c789048fee5200c8473574256add7aa51d47e5c4a19dfd574