[INFO] crate librsync-ffi 0.1.0 is already in cache
[INFO] testing librsync-ffi-0.1.0 against try#41997647ba6a77908f6ef64401414feb00bccf16 for pr-71274
[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 41997647ba6a77908f6ef64401414feb00bccf16
[INFO] running `"/workspace/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "read-manifest" "--manifest-path" "Cargo.toml"`
[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 `"/workspace/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 88679371d079761f54d2a33a3bb8652041a6fb2bc22da90d5e3dd454f3f8443b
[INFO] running `"docker" "start" "-a" "88679371d079761f54d2a33a3bb8652041a6fb2bc22da90d5e3dd454f3f8443b"`
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling ppv-lite86 v0.2.6
[INFO] [stderr]    Compiling remove_dir_all v0.5.2
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling tempfile v3.1.0
[INFO] [stderr]    Compiling librsync-ffi v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/file/patch.rs:31:9
[INFO] [stderr]    |
[INFO] [stderr] 31 |         file.write_all(delta.borrow().into());
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/file/patch.rs:49:5
[INFO] [stderr]    |
[INFO] [stderr] 49 |     file.read_to_end(&mut output);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.36s
[INFO] running `"docker" "inspect" "88679371d079761f54d2a33a3bb8652041a6fb2bc22da90d5e3dd454f3f8443b"`
[INFO] running `"docker" "rm" "-f" "88679371d079761f54d2a33a3bb8652041a6fb2bc22da90d5e3dd454f3f8443b"`
[INFO] [stdout] 88679371d079761f54d2a33a3bb8652041a6fb2bc22da90d5e3dd454f3f8443b
[INFO] running `"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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 6ce2d5d94cdbe58236a65a19c8653ee3d863cc506602b2f28f3ee2fb82c8365e
[INFO] running `"docker" "start" "-a" "6ce2d5d94cdbe58236a65a19c8653ee3d863cc506602b2f28f3ee2fb82c8365e"`
[INFO] [stderr]    Compiling librsync-ffi v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/file/patch.rs:31:9
[INFO] [stderr]    |
[INFO] [stderr] 31 |         file.write_all(delta.borrow().into());
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/file/patch.rs:49:5
[INFO] [stderr]    |
[INFO] [stderr] 49 |     file.read_to_end(&mut output);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/file/patch.rs:31:9
[INFO] [stderr]    |
[INFO] [stderr] 31 |         file.write_all(delta.borrow().into());
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/file/patch.rs:49:5
[INFO] [stderr]    |
[INFO] [stderr] 49 |     file.read_to_end(&mut output);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[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/rustwide/rustup-home/toolchains/41997647ba6a77908f6ef64401414feb00bccf16/lib/rustlib/x86_64-unknown-linux-gnu/lib" "/opt/rustwide/target/debug/deps/librsync_ffi-20f5647b0098e068.librsync_ffi.gf6djryu-cgu.0.rcgu.o" "/opt/rustwide/target/debug/deps/librsync_ffi-20f5647b0098e068.librsync_ffi.gf6djryu-cgu.1.rcgu.o" "/opt/rustwide/target/debug/deps/librsync_ffi-20f5647b0098e068.librsync_ffi.gf6djryu-cgu.10.rcgu.o" "/opt/rustwide/target/debug/deps/librsync_ffi-20f5647b0098e068.librsync_ffi.gf6djryu-cgu.11.rcgu.o" "/opt/rustwide/target/debug/deps/librsync_ffi-20f5647b0098e068.librsync_ffi.gf6djryu-cgu.12.rcgu.o" "/opt/rustwide/target/debug/deps/librsync_ffi-20f5647b0098e068.librsync_ffi.gf6djryu-cgu.13.rcgu.o" "/opt/rustwide/target/debug/deps/librsync_ffi-20f5647b0098e068.librsync_ffi.gf6djryu-cgu.14.rcgu.o" "/opt/rustwide/target/debug/deps/librsync_ffi-20f5647b0098e068.librsync_ffi.gf6djryu-cgu.15.rcgu.o" "/opt/rustwide/target/debug/deps/librsync_ffi-20f5647b0098e068.librsync_ffi.gf6djryu-cgu.2.rcgu.o" "/opt/rustwide/target/debug/deps/librsync_ffi-20f5647b0098e068.librsync_ffi.gf6djryu-cgu.3.rcgu.o" "/opt/rustwide/target/debug/deps/librsync_ffi-20f5647b0098e068.librsync_ffi.gf6djryu-cgu.4.rcgu.o" "/opt/rustwide/target/debug/deps/librsync_ffi-20f5647b0098e068.librsync_ffi.gf6djryu-cgu.5.rcgu.o" "/opt/rustwide/target/debug/deps/librsync_ffi-20f5647b0098e068.librsync_ffi.gf6djryu-cgu.6.rcgu.o" "/opt/rustwide/target/debug/deps/librsync_ffi-20f5647b0098e068.librsync_ffi.gf6djryu-cgu.7.rcgu.o" "/opt/rustwide/target/debug/deps/librsync_ffi-20f5647b0098e068.librsync_ffi.gf6djryu-cgu.8.rcgu.o" "/opt/rustwide/target/debug/deps/librsync_ffi-20f5647b0098e068.librsync_ffi.gf6djryu-cgu.9.rcgu.o" "-o" "/opt/rustwide/target/debug/deps/librsync_ffi-20f5647b0098e068" "/opt/rustwide/target/debug/deps/librsync_ffi-20f5647b0098e068.j5w1ogt8lu9ybpp.rcgu.o" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs" "-L" "/opt/rustwide/target/debug/deps" "-L" "/opt/rustwide/rustup-home/toolchains/41997647ba6a77908f6ef64401414feb00bccf16/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-lrsync" "-lrsync" "-lrsync" "-Wl,-Bstatic" "/opt/rustwide/rustup-home/toolchains/41997647ba6a77908f6ef64401414feb00bccf16/lib/rustlib/x86_64-unknown-linux-gnu/lib/libtest-a6274e2eaafd361e.rlib" "/opt/rustwide/rustup-home/toolchains/41997647ba6a77908f6ef64401414feb00bccf16/lib/rustlib/x86_64-unknown-linux-gnu/lib/libterm-2c85f64fb49c1603.rlib" "/opt/rustwide/rustup-home/toolchains/41997647ba6a77908f6ef64401414feb00bccf16/lib/rustlib/x86_64-unknown-linux-gnu/lib/libgetopts-ed84df1a106a13ed.rlib" "/opt/rustwide/rustup-home/toolchains/41997647ba6a77908f6ef64401414feb00bccf16/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunicode_width-e159833bdb71170b.rlib" "/opt/rustwide/rustup-home/toolchains/41997647ba6a77908f6ef64401414feb00bccf16/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_std-5f1c8c824853fda4.rlib" "/opt/rustwide/target/debug/deps/libtempfile-6456aeb5d7ed313f.rlib" "/opt/rustwide/target/debug/deps/librand-35f3fd6b129f1368.rlib" "/opt/rustwide/target/debug/deps/librand_chacha-cca8b2451a4e04a3.rlib" "/opt/rustwide/target/debug/deps/libppv_lite86-bc80430b8a7c0f1e.rlib" "/opt/rustwide/target/debug/deps/librand_core-9c9e87cdf4519e3b.rlib" "/opt/rustwide/target/debug/deps/libgetrandom-1515ef92041a5c6a.rlib" "/opt/rustwide/target/debug/deps/libremove_dir_all-7e92f31f59db608c.rlib" "/opt/rustwide/target/debug/deps/libcfg_if-7bfa6ddb9b2ff1d3.rlib" "/opt/rustwide/target/debug/deps/liblibc-7f3b8e4c2db2a8d8.rlib" "-Wl,--start-group" "/opt/rustwide/rustup-home/toolchains/41997647ba6a77908f6ef64401414feb00bccf16/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-62f93208e14fa8f0.rlib" "/opt/rustwide/rustup-home/toolchains/41997647ba6a77908f6ef64401414feb00bccf16/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-b2c4dbe979cef5e2.rlib" "/opt/rustwide/rustup-home/toolchains/41997647ba6a77908f6ef64401414feb00bccf16/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-8b9b66cb3e9f891d.rlib" "/opt/rustwide/rustup-home/toolchains/41997647ba6a77908f6ef64401414feb00bccf16/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-5998b08bf29f56ac.rlib" "/opt/rustwide/rustup-home/toolchains/41997647ba6a77908f6ef64401414feb00bccf16/lib/rustlib/x86_64-unknown-linux-gnu/lib/libbacktrace-efd1670396ccb585.rlib" "/opt/rustwide/rustup-home/toolchains/41997647ba6a77908f6ef64401414feb00bccf16/lib/rustlib/x86_64-unknown-linux-gnu/lib/libbacktrace_sys-6435b9209e888961.rlib" "/opt/rustwide/rustup-home/toolchains/41997647ba6a77908f6ef64401414feb00bccf16/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-866e5dfb603b34d2.rlib" "/opt/rustwide/rustup-home/toolchains/41997647ba6a77908f6ef64401414feb00bccf16/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-75eac3089695b3b4.rlib" "/opt/rustwide/rustup-home/toolchains/41997647ba6a77908f6ef64401414feb00bccf16/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcfg_if-35744537b4825584.rlib" "/opt/rustwide/rustup-home/toolchains/41997647ba6a77908f6ef64401414feb00bccf16/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-f7ee5081d96fb2cd.rlib" "/opt/rustwide/rustup-home/toolchains/41997647ba6a77908f6ef64401414feb00bccf16/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-5b28479cb639d76c.rlib" "/opt/rustwide/rustup-home/toolchains/41997647ba6a77908f6ef64401414feb00bccf16/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-f827473dd3b319fa.rlib" "/opt/rustwide/rustup-home/toolchains/41997647ba6a77908f6ef64401414feb00bccf16/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-53f9c299c549c6a9.rlib" "-Wl,--end-group" "/opt/rustwide/rustup-home/toolchains/41997647ba6a77908f6ef64401414feb00bccf16/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-44132fbb3fcc18d3.rlib" "-Wl,-Bdynamic" "-lutil" "-ldl" "-lutil" "-ldl" "-lrt" "-lpthread" "-lgcc_s" "-lc" "-lm" "-lrt" "-lpthread" "-lutil" "-ldl" "-lutil"
[INFO] [stderr]   = note: /usr/bin/ld: cannot find -lrsync
[INFO] [stderr]           /usr/bin/ld: cannot find -lrsync
[INFO] [stderr]           /usr/bin/ld: cannot find -lrsync
[INFO] [stderr]           collect2: error: ld returned 1 exit status
[INFO] [stderr]           
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error; 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] error: could not compile `librsync-ffi`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "6ce2d5d94cdbe58236a65a19c8653ee3d863cc506602b2f28f3ee2fb82c8365e"`
[INFO] running `"docker" "rm" "-f" "6ce2d5d94cdbe58236a65a19c8653ee3d863cc506602b2f28f3ee2fb82c8365e"`
[INFO] [stdout] 6ce2d5d94cdbe58236a65a19c8653ee3d863cc506602b2f28f3ee2fb82c8365e