[INFO] cloning repository https://github.com/haiduong183724/rust-excerise [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/haiduong183724/rust-excerise" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhaiduong183724%2Frust-excerise", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhaiduong183724%2Frust-excerise'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 9ae5092713cbdf28a8ff2ce3dfa57020343ce3ce [INFO] checking haiduong183724/rust-excerise against master#9f48dedc9763334a587c66558974635807a113ed for pr-137394 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhaiduong183724%2Frust-excerise" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/haiduong183724/rust-excerise on toolchain 9f48dedc9763334a587c66558974635807a113ed [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9f48dedc9763334a587c66558974635807a113ed" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/haiduong183724/rust-excerise [INFO] finished tweaking git repo https://github.com/haiduong183724/rust-excerise [INFO] tweaked toml for git repo https://github.com/haiduong183724/rust-excerise written to /workspace/builds/worker-3-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/haiduong183724/rust-excerise 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" "+9f48dedc9763334a587c66558974635807a113ed" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+9f48dedc9763334a587c66558974635807a113ed" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] edfc9bbda590906e5302178b4200337f6e49c73b3907bf648294196ebc55a708 [INFO] running `Command { std: "docker" "start" "-a" "edfc9bbda590906e5302178b4200337f6e49c73b3907bf648294196ebc55a708", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "edfc9bbda590906e5302178b4200337f6e49c73b3907bf648294196ebc55a708", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "edfc9bbda590906e5302178b4200337f6e49c73b3907bf648294196ebc55a708", kill_on_drop: false }` [INFO] [stdout] edfc9bbda590906e5302178b4200337f6e49c73b3907bf648294196ebc55a708 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+9f48dedc9763334a587c66558974635807a113ed" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 89728aea99543be2e2f938a2161b90c07b60a8bda7682b4e082c05aba515eaf2 [INFO] running `Command { std: "docker" "start" "-a" "89728aea99543be2e2f938a2161b90c07b60a8bda7682b4e082c05aba515eaf2", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.86 [INFO] [stderr] Compiling unicode-ident v1.0.12 [INFO] [stderr] Compiling heck v0.5.0 [INFO] [stderr] Checking lesson3 v0.1.0 (/opt/rustwide/workdir/lesson3) [INFO] [stderr] Checking lesson1 v0.1.0 (/opt/rustwide/workdir/lesson1) [INFO] [stdout] warning: value assigned to `result` is never read [INFO] [stdout] --> lesson3/src/exercise5.rs:5:13 [INFO] [stdout] | [INFO] [stdout] 5 | let mut result = 0; [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] = note: `#[warn(unused_assignments)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Counter` is never constructed [INFO] [stdout] --> lesson3/src/exercise1.rs:2:12 [INFO] [stdout] | [INFO] [stdout] 2 | struct Counter { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `new` is never used [INFO] [stdout] --> lesson3/src/exercise1.rs:8:12 [INFO] [stdout] | [INFO] [stdout] 7 | impl Counter { [INFO] [stdout] | ------------ associated function in this implementation [INFO] [stdout] 8 | fn new(max: u32) -> Counter { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `run` is never used [INFO] [stdout] --> lesson3/src/exercise1.rs:26:12 [INFO] [stdout] | [INFO] [stdout] 26 | pub fn run() { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `run` is never used [INFO] [stdout] --> lesson3/src/exercise2.rs:21:4 [INFO] [stdout] | [INFO] [stdout] 21 | fn run() { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `main` is never used [INFO] [stdout] --> lesson3/src/exercise3.rs:20:4 [INFO] [stdout] | [INFO] [stdout] 20 | fn main() { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `run` is never used [INFO] [stdout] --> lesson3/src/exercise4.rs:1:8 [INFO] [stdout] | [INFO] [stdout] 1 | pub fn run() { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `result` is never read [INFO] [stdout] --> lesson3/src/exercise5.rs:5:13 [INFO] [stdout] | [INFO] [stdout] 5 | let mut result = 0; [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] = note: `#[warn(unused_assignments)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Counter` is never constructed [INFO] [stdout] --> lesson3/src/exercise1.rs:2:12 [INFO] [stdout] | [INFO] [stdout] 2 | struct Counter { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `new` is never used [INFO] [stdout] --> lesson3/src/exercise1.rs:8:12 [INFO] [stdout] | [INFO] [stdout] 7 | impl Counter { [INFO] [stdout] | ------------ associated function in this implementation [INFO] [stdout] 8 | fn new(max: u32) -> Counter { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `run` is never used [INFO] [stdout] --> lesson3/src/exercise1.rs:26:12 [INFO] [stdout] | [INFO] [stdout] 26 | pub fn run() { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `run` is never used [INFO] [stdout] --> lesson3/src/exercise2.rs:21:4 [INFO] [stdout] | [INFO] [stdout] 21 | fn run() { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `main` is never used [INFO] [stdout] --> lesson3/src/exercise3.rs:20:4 [INFO] [stdout] | [INFO] [stdout] 20 | fn main() { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `run` is never used [INFO] [stdout] --> lesson3/src/exercise4.rs:1:8 [INFO] [stdout] | [INFO] [stdout] 1 | pub fn run() { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: linking with `cc` failed: exit status: 1 [INFO] [stdout] | [INFO] [stdout] = note: "cc" "-m64" "/tmp/rustcR9xWnU/symbols.o" "<3 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-*,liballoc-*,librustc_std_workspace_core-*,libcore-*,libcompiler_builtins-*}.rlib" "-Wl,-Bdynamic" "-lgcc_s" "-lutil" "-lrt" "-lpthread" "-lm" "-ldl" "-lc" "-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/build/proc-macro2-8c68ecd7d948d827/build_script_build-8c68ecd7d948d827" "-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 `proc-macro2` (build script) due to 1 previous error [INFO] running `Command { std: "docker" "inspect" "89728aea99543be2e2f938a2161b90c07b60a8bda7682b4e082c05aba515eaf2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "89728aea99543be2e2f938a2161b90c07b60a8bda7682b4e082c05aba515eaf2", kill_on_drop: false }` [INFO] [stdout] 89728aea99543be2e2f938a2161b90c07b60a8bda7682b4e082c05aba515eaf2