[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 beta-2025-10-28 for beta-1.92-2 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frrajesh1979%2Flearn-rust-examples" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/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-5-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/rrajesh1979/learn-rust-examples on toolchain beta-2025-10-28 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-10-28" "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" "+beta-2025-10-28" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] d241c67666d697b92d3a44d33bc699f22a75c08aa80a59d9f3aed491fa63e24d [INFO] running `Command { std: "docker" "start" "-a" "d241c67666d697b92d3a44d33bc699f22a75c08aa80a59d9f3aed491fa63e24d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "d241c67666d697b92d3a44d33bc699f22a75c08aa80a59d9f3aed491fa63e24d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d241c67666d697b92d3a44d33bc699f22a75c08aa80a59d9f3aed491fa63e24d", kill_on_drop: false }` [INFO] [stdout] d241c67666d697b92d3a44d33bc699f22a75c08aa80a59d9f3aed491fa63e24d [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] b4cd70e75bc33c1f9a96ceab484fce4c00872bad8bb95cff6c48a65e27dd083e [INFO] running `Command { std: "docker" "start" "-a" "b4cd70e75bc33c1f9a96ceab484fce4c00872bad8bb95cff6c48a65e27dd083e", 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)]` (part of `#[warn(unused)]`) 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] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.29s [INFO] running `Command { std: "docker" "inspect" "b4cd70e75bc33c1f9a96ceab484fce4c00872bad8bb95cff6c48a65e27dd083e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b4cd70e75bc33c1f9a96ceab484fce4c00872bad8bb95cff6c48a65e27dd083e", kill_on_drop: false }` [INFO] [stdout] b4cd70e75bc33c1f9a96ceab484fce4c00872bad8bb95cff6c48a65e27dd083e [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 448528e779c84b4d145309f219c3ce506c34f6085c2ac72bb7944f6c3c8c4c47 [INFO] running `Command { std: "docker" "start" "-a" "448528e779c84b4d145309f219c3ce506c34f6085c2ac72bb7944f6c3c8c4c47", 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)]` (part of `#[warn(unused)]`) 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] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.25s [INFO] running `Command { std: "docker" "inspect" "448528e779c84b4d145309f219c3ce506c34f6085c2ac72bb7944f6c3c8c4c47", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "448528e779c84b4d145309f219c3ce506c34f6085c2ac72bb7944f6c3c8c4c47", kill_on_drop: false }` [INFO] [stdout] 448528e779c84b4d145309f219c3ce506c34f6085c2ac72bb7944f6c3c8c4c47 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 0b374050e2d595dc7b5c2a3f6935d6b2442a1bd90fdcb616df27c2cfab935ca9 [INFO] running `Command { std: "docker" "start" "-a" "0b374050e2d595dc7b5c2a3f6935d6b2442a1bd90fdcb616df27c2cfab935ca9", kill_on_drop: false }` [INFO] [stderr] warning: function `print` is never used [INFO] [stderr] --> src/myformat.rs:1:4 [INFO] [stderr] | [INFO] [stderr] 1 | fn print() { [INFO] [stderr] | ^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] [INFO] [stderr] warning: fields `name` and `age` are never read [INFO] [stderr] --> src/myformat.rs:23:5 [INFO] [stderr] | [INFO] [stderr] 22 | struct Person<'a> { [INFO] [stderr] | ------ fields in this struct [INFO] [stderr] 23 | name: &'a str, [INFO] [stderr] | ^^^^ [INFO] [stderr] 24 | age: u8 [INFO] [stderr] | ^^^ [INFO] [stderr] | [INFO] [stderr] = note: `Person` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stderr] [INFO] [stderr] warning: function `add_one` is never used [INFO] [stderr] --> src/comment.rs:21:8 [INFO] [stderr] | [INFO] [stderr] 21 | pub fn add_one(x: i32) -> i32 { [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: `learn-rust-examples` (bin "learn-rust-examples" test) generated 3 warnings [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s [INFO] [stderr] Running unittests src/main.rs (/opt/rustwide/target/debug/deps/learn_rust_examples-223ae89167bff1cc) [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "0b374050e2d595dc7b5c2a3f6935d6b2442a1bd90fdcb616df27c2cfab935ca9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0b374050e2d595dc7b5c2a3f6935d6b2442a1bd90fdcb616df27c2cfab935ca9", kill_on_drop: false }` [INFO] [stdout] 0b374050e2d595dc7b5c2a3f6935d6b2442a1bd90fdcb616df27c2cfab935ca9