[INFO] cloning repository https://github.com/k-shar/rust_learning
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/k-shar/rust_learning" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fk-shar%2Frust_learning", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fk-shar%2Frust_learning'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3baf1f7e46806b448f8293b4d0df6643ef50e0ef
[INFO] testing k-shar/rust_learning against beta-2025-09-21 for beta-1.91-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fk-shar%2Frust_learning" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/k-shar/rust_learning
[INFO] finished tweaking git repo https://github.com/k-shar/rust_learning
[INFO] tweaked toml for git repo https://github.com/k-shar/rust_learning written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/k-shar/rust_learning on toolchain beta-2025-09-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/k-shar/rust_learning 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-2025-09-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5fefdaacb819e9c88d46141173f9de196ba52808341aa00f0b668bcc2a898bbc
[INFO] running `Command { std: "docker" "start" "-a" "5fefdaacb819e9c88d46141173f9de196ba52808341aa00f0b668bcc2a898bbc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5fefdaacb819e9c88d46141173f9de196ba52808341aa00f0b668bcc2a898bbc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5fefdaacb819e9c88d46141173f9de196ba52808341aa00f0b668bcc2a898bbc", kill_on_drop: false }`
[INFO] [stdout] 5fefdaacb819e9c88d46141173f9de196ba52808341aa00f0b668bcc2a898bbc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7bc19d6c71738e8cacdb5f8b7ce050f004ad3c235c3530aceedabf8ce27412b8
[INFO] running `Command { std: "docker" "start" "-a" "7bc19d6c71738e8cacdb5f8b7ce050f004ad3c235c3530aceedabf8ce27412b8", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function `fib` is never used
[INFO] [stdout]  --> src/fib.rs:3:4
[INFO] [stdout]   |
[INFO] [stdout] 3 | fn fib(x: i32) -> i32 {
[INFO] [stdout]   |    ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `ask_for_fib` is never used
[INFO] [stdout]   --> src/fib.rs:11:4
[INFO] [stdout]    |
[INFO] [stdout] 11 | fn ask_for_fib() {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]   --> src/fib.rs:28:8
[INFO] [stdout]    |
[INFO] [stdout] 28 | pub fn main() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]  --> src/christmas.rs:2:8
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub fn main(){
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static `GIFTS` is never used
[INFO] [stdout]   --> src/christmas.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | static GIFTS: [&str; 12] = 
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static `DAYS` is never used
[INFO] [stdout]   --> src/christmas.rs:29:8
[INFO] [stdout]    |
[INFO] [stdout] 29 | static DAYS: [&str; 12] = 
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `area` is never used
[INFO] [stdout]  --> src/rectangle.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | impl Rect {
[INFO] [stdout]   | --------- method in this implementation
[INFO] [stdout] 7 |     fn area(&self) -> u32{
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.59s
[INFO] running `Command { std: "docker" "inspect" "7bc19d6c71738e8cacdb5f8b7ce050f004ad3c235c3530aceedabf8ce27412b8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7bc19d6c71738e8cacdb5f8b7ce050f004ad3c235c3530aceedabf8ce27412b8", kill_on_drop: false }`
[INFO] [stdout] 7bc19d6c71738e8cacdb5f8b7ce050f004ad3c235c3530aceedabf8ce27412b8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c16fa02590983b03e2472cb9669964cf9676a54c035d5648009a431eff1c1957
[INFO] running `Command { std: "docker" "start" "-a" "c16fa02590983b03e2472cb9669964cf9676a54c035d5648009a431eff1c1957", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function `fib` is never used
[INFO] [stdout]  --> src/fib.rs:3:4
[INFO] [stdout]   |
[INFO] [stdout] 3 | fn fib(x: i32) -> i32 {
[INFO] [stdout]   |    ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `ask_for_fib` is never used
[INFO] [stdout]   --> src/fib.rs:11:4
[INFO] [stdout]    |
[INFO] [stdout] 11 | fn ask_for_fib() {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]   --> src/fib.rs:28:8
[INFO] [stdout]    |
[INFO] [stdout] 28 | pub fn main() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]  --> src/christmas.rs:2:8
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub fn main(){
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static `GIFTS` is never used
[INFO] [stdout]   --> src/christmas.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | static GIFTS: [&str; 12] = 
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static `DAYS` is never used
[INFO] [stdout]   --> src/christmas.rs:29:8
[INFO] [stdout]    |
[INFO] [stdout] 29 | static DAYS: [&str; 12] = 
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `area` is never used
[INFO] [stdout]  --> src/rectangle.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | impl Rect {
[INFO] [stdout]   | --------- method in this implementation
[INFO] [stdout] 7 |     fn area(&self) -> u32{
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.29s
[INFO] running `Command { std: "docker" "inspect" "c16fa02590983b03e2472cb9669964cf9676a54c035d5648009a431eff1c1957", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c16fa02590983b03e2472cb9669964cf9676a54c035d5648009a431eff1c1957", kill_on_drop: false }`
[INFO] [stdout] c16fa02590983b03e2472cb9669964cf9676a54c035d5648009a431eff1c1957
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 0ff62b2bfef8e6c792dd0c64cc65a392d9726993960ab3dd12228ff935c40cd4
[INFO] running `Command { std: "docker" "start" "-a" "0ff62b2bfef8e6c792dd0c64cc65a392d9726993960ab3dd12228ff935c40cd4", kill_on_drop: false }`
[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] [stderr] warning: function `fib` is never used
[INFO] [stderr]  --> src/fib.rs:3:4
[INFO] [stderr]   |
[INFO] [stderr] 3 | fn fib(x: i32) -> i32 {
[INFO] [stderr]   |    ^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function `ask_for_fib` is never used
[INFO] [stderr]   --> src/fib.rs:11:4
[INFO] [stderr]    |
[INFO] [stderr] 11 | fn ask_for_fib() {
[INFO] [stderr]    |    ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `main` is never used
[INFO] [stderr]   --> src/fib.rs:28:8
[INFO] [stderr]    |
[INFO] [stderr] 28 | pub fn main() {
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `main` is never used
[INFO] [stderr]  --> src/christmas.rs:2:8
[INFO] [stderr]   |
[INFO] [stderr] 2 | pub fn main(){
[INFO] [stderr]   |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: static `GIFTS` is never used
[INFO] [stderr]   --> src/christmas.rs:14:8
[INFO] [stderr]    |
[INFO] [stderr] 14 | static GIFTS: [&str; 12] = 
[INFO] [stderr]    |        ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: static `DAYS` is never used
[INFO] [stderr]   --> src/christmas.rs:29:8
[INFO] [stderr]    |
[INFO] [stderr] 29 | static DAYS: [&str; 12] = 
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method `area` is never used
[INFO] [stderr]  --> src/rectangle.rs:7:8
[INFO] [stderr]   |
[INFO] [stderr] 6 | impl Rect {
[INFO] [stderr]   | --------- method in this implementation
[INFO] [stderr] 7 |     fn area(&self) -> u32{
[INFO] [stderr]   |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `rust` (bin "rust" test) generated 7 warnings
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/rust-9647ca23e3195bbf)
[INFO] running `Command { std: "docker" "inspect" "0ff62b2bfef8e6c792dd0c64cc65a392d9726993960ab3dd12228ff935c40cd4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0ff62b2bfef8e6c792dd0c64cc65a392d9726993960ab3dd12228ff935c40cd4", kill_on_drop: false }`
[INFO] [stdout] 0ff62b2bfef8e6c792dd0c64cc65a392d9726993960ab3dd12228ff935c40cd4