[INFO] cloning repository https://github.com/rrajesh1979/learn-rust-examples [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rrajesh1979/learn-rust-examples" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frrajesh1979%2Flearn-rust-examples", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frrajesh1979%2Flearn-rust-examples'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 1c85d6132c6bd869d971b1eea1a9673541b14cbd [INFO] testing rrajesh1979/learn-rust-examples against 1.90.0 for beta-1.91-2 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frrajesh1979%2Flearn-rust-examples" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/rrajesh1979/learn-rust-examples [INFO] finished tweaking git repo https://github.com/rrajesh1979/learn-rust-examples [INFO] tweaked toml for git repo https://github.com/rrajesh1979/learn-rust-examples written to /workspace/builds/worker-6-tc1/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/rrajesh1979/learn-rust-examples on toolchain 1.90.0 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/rrajesh1979/learn-rust-examples 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" "+1.90.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] b0ca9269965d0fa8ae014a3dd9a99a72d3523b07c86569057abb8b235f2074ba [INFO] running `Command { std: "docker" "start" "-a" "b0ca9269965d0fa8ae014a3dd9a99a72d3523b07c86569057abb8b235f2074ba", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "b0ca9269965d0fa8ae014a3dd9a99a72d3523b07c86569057abb8b235f2074ba", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b0ca9269965d0fa8ae014a3dd9a99a72d3523b07c86569057abb8b235f2074ba", kill_on_drop: false }` [INFO] [stdout] b0ca9269965d0fa8ae014a3dd9a99a72d3523b07c86569057abb8b235f2074ba [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 4f9dcc3f088dffc278bb19980749efd090014f3eacb656350721508de72e5aba [INFO] running `Command { std: "docker" "start" "-a" "4f9dcc3f088dffc278bb19980749efd090014f3eacb656350721508de72e5aba", kill_on_drop: false }` [INFO] [stderr] Compiling learn-rust-examples v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: function `print` is never used [INFO] [stdout] --> src/myformat.rs:1:4 [INFO] [stdout] | [INFO] [stdout] 1 | fn print() { [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `name` and `age` are never read [INFO] [stdout] --> src/myformat.rs:23:5 [INFO] [stdout] | [INFO] [stdout] 22 | struct Person<'a> { [INFO] [stdout] | ------ fields in this struct [INFO] [stdout] 23 | name: &'a str, [INFO] [stdout] | ^^^^ [INFO] [stdout] 24 | age: u8 [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Person` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `add_one` is never used [INFO] [stdout] --> src/comment.rs:21:8 [INFO] [stdout] | [INFO] [stdout] 21 | pub fn add_one(x: i32) -> i32 { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: linking with `cc` failed: exit status: 1 [INFO] [stdout] | [INFO] [stdout] = note: "cc" "-m64" "/tmp/rustcIyDiN3/symbols.o" "<2 object files omitted>" "-Wl,--as-needed" "-Wl,-Bstatic" "/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-*,librustc_std_workspace_core-*,liballoc-*,libcore-*,libcompiler_builtins-*}.rlib" "-Wl,-Bdynamic" "-lgcc_s" "-lutil" "-lrt" "-lpthread" "-lm" "-ldl" "-lc" "-L" "/tmp/rustcIyDiN3/raw-dylibs" "-B/lib/rustlib/x86_64-unknown-linux-gnu/bin/gcc-ld" "-fuse-ld=lld" "-Wl,--eh-frame-hdr" "-Wl,-z,noexecstack" "-L" "/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-o" "/opt/rustwide/target/debug/deps/learn_rust_examples-cca008e890c6e1a4" "-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: 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 `learn-rust-examples` (bin "learn-rust-examples") due to 1 previous error; 3 warnings emitted [INFO] running `Command { std: "docker" "inspect" "4f9dcc3f088dffc278bb19980749efd090014f3eacb656350721508de72e5aba", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4f9dcc3f088dffc278bb19980749efd090014f3eacb656350721508de72e5aba", kill_on_drop: false }` [INFO] [stdout] 4f9dcc3f088dffc278bb19980749efd090014f3eacb656350721508de72e5aba