[INFO] cloning repository https://github.com/dd0sxx/rustlings [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dd0sxx/rustlings" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdd0sxx%2Frustlings", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdd0sxx%2Frustlings'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] cbe10747c640441d9f6a038c13abb1ae7236d753 [INFO] building dd0sxx/rustlings against try#8b8eff55bd72abbb57167bc42222a7f91d41cb0d for pr-142134-abi-ast-error [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdd0sxx%2Frustlings" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/dd0sxx/rustlings on toolchain 8b8eff55bd72abbb57167bc42222a7f91d41cb0d [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8b8eff55bd72abbb57167bc42222a7f91d41cb0d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/dd0sxx/rustlings [INFO] finished tweaking git repo https://github.com/dd0sxx/rustlings [INFO] tweaked toml for git repo https://github.com/dd0sxx/rustlings written to /workspace/builds/worker-3-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/dd0sxx/rustlings already has a lockfile, it will not be regenerated [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8b8eff55bd72abbb57167bc42222a7f91d41cb0d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+8b8eff55bd72abbb57167bc42222a7f91d41cb0d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 8607a128ccdb653c5da469e290182f24749619dbe5b8419da06cebcdfaaeb6c0 [INFO] running `Command { std: "docker" "start" "-a" "8607a128ccdb653c5da469e290182f24749619dbe5b8419da06cebcdfaaeb6c0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "8607a128ccdb653c5da469e290182f24749619dbe5b8419da06cebcdfaaeb6c0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8607a128ccdb653c5da469e290182f24749619dbe5b8419da06cebcdfaaeb6c0", kill_on_drop: false }` [INFO] [stdout] 8607a128ccdb653c5da469e290182f24749619dbe5b8419da06cebcdfaaeb6c0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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" "RUSTDOCFLAGS=--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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+8b8eff55bd72abbb57167bc42222a7f91d41cb0d" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] b665be21d0d44e6347339016873e173fb89535bd650d39a718f8f99313db9fe0 [INFO] running `Command { std: "docker" "start" "-a" "b665be21d0d44e6347339016873e173fb89535bd650d39a718f8f99313db9fe0", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.100 [INFO] [stderr] Compiling proc-macro2 v1.0.28 [INFO] [stderr] Compiling unicode-xid v0.2.2 [INFO] [stderr] Compiling syn v1.0.75 [INFO] [stderr] Compiling memchr v2.4.1 [INFO] [stderr] Compiling log v0.4.14 [INFO] [stderr] Compiling serde_derive v1.0.129 [INFO] [stderr] Compiling cfg-if v1.0.0 [INFO] [stderr] Compiling cfg-if v0.1.10 [INFO] [stderr] Compiling serde v1.0.129 [INFO] [stderr] Compiling unicode-segmentation v1.8.0 [INFO] [stderr] Compiling ryu v1.0.5 [INFO] [stderr] Compiling regex-syntax v0.6.25 [INFO] [stderr] Compiling slab v0.4.4 [INFO] [stderr] Compiling serde_json v1.0.81 [INFO] [stderr] Compiling bitflags v1.3.2 [INFO] [stderr] Compiling once_cell v1.10.0 [INFO] [stderr] Compiling same-file v1.0.6 [INFO] [stderr] Compiling unicode-width v0.1.8 [INFO] [stderr] Compiling lazycell v1.3.0 [INFO] [stderr] Compiling argh_shared v0.1.5 [INFO] [stderr] Compiling walkdir v2.3.2 [INFO] [stderr] Compiling lazy_static v1.4.0 [INFO] [stderr] Compiling itoa v1.0.2 [INFO] [stderr] Compiling number_prefix v0.4.0 [INFO] [stderr] Compiling glob v0.3.0 [INFO] [stderr] Compiling home v0.5.3 [INFO] [stderr] Compiling heck v0.3.3 [INFO] [stderr] Compiling iovec v0.1.4 [INFO] [stderr] Compiling net2 v0.2.37 [INFO] [stderr] Compiling terminal_size v0.1.17 [INFO] [stderr] Compiling inotify-sys v0.1.5 [INFO] [stderr] Compiling filetime v0.2.15 [INFO] [stderr] Compiling inotify v0.7.1 [INFO] [stderr] Compiling quote v1.0.9 [INFO] [stderr] Compiling aho-corasick v0.7.18 [INFO] [stderr] Compiling mio v0.6.23 [INFO] [stderr] Compiling mio-extras v2.0.6 [INFO] [stderr] Compiling notify v4.0.17 [INFO] [stderr] Compiling regex v1.5.5 [INFO] [stderr] Compiling argh_derive v0.1.5 [INFO] [stderr] Compiling console v0.15.0 [INFO] [stderr] Compiling indicatif v0.16.2 [INFO] [stderr] Compiling argh v0.1.5 [INFO] [stderr] Compiling toml v0.5.9 [INFO] [stderr] Compiling rustlings v5.0.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/exercise.rs:109:20 [INFO] [stdout] | [INFO] [stdout] 109 | pub fn compile(&self) -> Result { [INFO] [stdout] | ^^^^^ ---------------- the lifetime gets resolved as `'_` [INFO] [stdout] | | [INFO] [stdout] | this lifetime flows to the output [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stdout] | [INFO] [stdout] 109 | pub fn compile(&self) -> Result, ExerciseOutput> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: linking with `cc` failed: exit status: 1 [INFO] [stdout] | [INFO] [stdout] = note: "cc" "-m64" "/tmp/rustcY6oVBz/symbols.o" "<17 object files omitted>" "-Wl,--as-needed" "-Wl,-Bstatic" "/opt/rustwide/target/debug/deps/{libtoml-f1627cbea4b7afea.rlib,libserde_json-8c95260a8b47e138.rlib,libryu-e9bcd0de7bc88f0a.rlib,libitoa-04b8f43abd9b1416.rlib,libindicatif-8094a3657b845146.rlib,liblazy_static-ba6d9ac4e4243af3.rlib,libnumber_prefix-bb2a6f96d504d8d9.rlib,libglob-1805460520f5db9b.rlib,libserde-00e8a974b392bda0.rlib,libnotify-f0c68d9d0fcba2f8.rlib,libwalkdir-038f58a242e9c1ec.rlib,libsame_file-5bb58454939b20b9.rlib,libinotify-2afae6e02e9daf23.rlib,libinotify_sys-3b3093745837d941.rlib,libmio_extras-a3d779ace8f95239.rlib,liblazycell-b5db6f5795aa6271.rlib,libmio-1245d58c1399a181.rlib,liblog-37071c70264f7b89.rlib,libslab-9341c613ec5bca98.rlib,libiovec-bece9728f5b6f485.rlib,libnet2-c73d3e55373beb02.rlib,libcfg_if-a6c7f2a442104fca.rlib,libfiletime-6b486d0467c2e2a0.rlib,libcfg_if-02ffc4ff30a29427.rlib,libbitflags-def4ff224bdcd924.rlib,libconsole-fd5bd1ac6cb4fdcc.rlib,libterminal_size-dda8775781b4ab57.rlib,liblibc-e9f3bbe0153c1463.rlib,libregex-437395bf5ae59213.rlib,libaho_corasick-cfd3d492b8a03685.rlib,libmemchr-f9d387c18bb98cb2.rlib,libregex_syntax-ecffaa4fc8160b73.rlib,libunicode_width-3171469716dbe5b6.rlib,libonce_cell-e03308feb6bde1e8.rlib,libargh-3f689a341aa1fcba.rlib,libargh_shared-dd63995468adf5b9.rlib}.rlib" "/lib/rustlib/x86_64-unknown-linux-gnu/lib/{libstd-*,libpanic_unwind-*,libobject-*,libmemchr-*,libaddr2line-*,libgimli-*,librustc_demangle-*,libstd_detect-*,libhashbrown-*,librustc_std_workspace_alloc-*,libminiz_oxide-*,libadler2-*,libunwind-*,libcfg_if-*,liblibc-*,liballoc-*,librustc_std_workspace_core-*,libcore-*,libcompiler_builtins-*}.rlib" "-Wl,-Bdynamic" "-lgcc_s" "-lutil" "-lrt" "-lpthread" "-lm" "-ldl" "-lc" "-L" "/tmp/rustcY6oVBz/raw-dylibs" "-B/lib/rustlib/x86_64-unknown-linux-gnu/bin/gcc-ld" "-fuse-ld=lld" "-Wl,-znostart-stop-gc" "-Wl,--eh-frame-hdr" "-Wl,-z,noexecstack" "-L" "/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-o" "/opt/rustwide/target/debug/deps/rustlings-4f5f800876014419" "-Wl,--gc-sections" "-pie" "-Wl,-z,relro,-z,now" "-nodefaultlibs" [INFO] [stdout] = note: some arguments are omitted. use `--verbose` to show all linker arguments [INFO] [stdout] = note: PLEASE submit a bug report to https://github.com/llvm/llvm-project/issues/ and include the crash backtrace. [INFO] [stdout] collect2: fatal error: ld terminated with signal 7 [Bus error], core dumped [INFO] [stdout] compilation terminated. [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `rustlings` (bin "rustlings") due to 1 previous error; 1 warning emitted [INFO] running `Command { std: "docker" "inspect" "b665be21d0d44e6347339016873e173fb89535bd650d39a718f8f99313db9fe0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b665be21d0d44e6347339016873e173fb89535bd650d39a718f8f99313db9fe0", kill_on_drop: false }` [INFO] [stdout] b665be21d0d44e6347339016873e173fb89535bd650d39a718f8f99313db9fe0