[INFO] fetching crate unit8 0.1.0... [INFO] testing unit8-0.1.0 against beta-2025-10-28 for beta-1.92-2 [INFO] extracting crate unit8 0.1.0 into /workspace/builds/worker-3-tc2/source [INFO] started tweaking crates.io crate unit8 0.1.0 [INFO] finished tweaking crates.io crate unit8 0.1.0 [INFO] tweaked toml for crates.io crate unit8 0.1.0 written to /workspace/builds/worker-3-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate unit8 0.1.0 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 crates.io crate unit8 0.1.0 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-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] d70f19df135b14a9eb9fd42faa3b421366207fdc6b32fa8d1eccd372037421bf [INFO] running `Command { std: "docker" "start" "-a" "d70f19df135b14a9eb9fd42faa3b421366207fdc6b32fa8d1eccd372037421bf", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "d70f19df135b14a9eb9fd42faa3b421366207fdc6b32fa8d1eccd372037421bf", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d70f19df135b14a9eb9fd42faa3b421366207fdc6b32fa8d1eccd372037421bf", kill_on_drop: false }` [INFO] [stdout] d70f19df135b14a9eb9fd42faa3b421366207fdc6b32fa8d1eccd372037421bf [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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 4bc2942a06eea339bd8eb6d4fda1168399634df3e505d71f0213c0c5549316e0 [INFO] running `Command { std: "docker" "start" "-a" "4bc2942a06eea339bd8eb6d4fda1168399634df3e505d71f0213c0c5549316e0", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.147 [INFO] [stderr] Compiling rand v0.4.6 [INFO] [stderr] Compiling rand v0.3.23 [INFO] [stderr] Compiling unit8 v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `std::fmt::Debug` [INFO] [stdout] --> src/main.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 2 | use std::fmt::Debug; [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `i` [INFO] [stdout] --> src/main.rs:12:9 [INFO] [stdout] | [INFO] [stdout] 12 | for i in 0..100 { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `index0` [INFO] [stdout] --> src/main.rs:50:9 [INFO] [stdout] | [INFO] [stdout] 50 | let index0 = &list[0]; [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_index0` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `index1` [INFO] [stdout] --> src/main.rs:53:17 [INFO] [stdout] | [INFO] [stdout] 53 | if let Some(index1) = index1_option {} else {} [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_index1` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `string` [INFO] [stdout] --> src/main.rs:66:9 [INFO] [stdout] | [INFO] [stdout] 66 | let string = String::new(); [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_string` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `string` [INFO] [stdout] --> src/main.rs:68:9 [INFO] [stdout] | [INFO] [stdout] 68 | let string = String::from("string"); [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_string` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `new_s` [INFO] [stdout] --> src/main.rs:84:9 [INFO] [stdout] | [INFO] [stdout] 84 | let new_s = format!("{}-{}", new_s, s); [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_new_s` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `k` [INFO] [stdout] --> src/main.rs:108:10 [INFO] [stdout] | [INFO] [stdout] 108 | for (k, v) in map {} [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_k` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `v` [INFO] [stdout] --> src/main.rs:108:13 [INFO] [stdout] | [INFO] [stdout] 108 | for (k, v) in map {} [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_v` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `vec` is never used [INFO] [stdout] --> src/main.rs:39:4 [INFO] [stdout] | [INFO] [stdout] 39 | fn vec() { [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 `str_and_string` is never used [INFO] [stdout] --> src/main.rs:62:4 [INFO] [stdout] | [INFO] [stdout] 62 | fn str_and_string() { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `hash_map` is never used [INFO] [stdout] --> src/main.rs:88:4 [INFO] [stdout] | [INFO] [stdout] 88 | fn hash_map() { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.29s [INFO] running `Command { std: "docker" "inspect" "4bc2942a06eea339bd8eb6d4fda1168399634df3e505d71f0213c0c5549316e0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4bc2942a06eea339bd8eb6d4fda1168399634df3e505d71f0213c0c5549316e0", kill_on_drop: false }` [INFO] [stdout] 4bc2942a06eea339bd8eb6d4fda1168399634df3e505d71f0213c0c5549316e0 [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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] e5a4460a375c0d70152277053971ab0788d3d23060d0d77c66a28c8662a0f6f0 [INFO] running `Command { std: "docker" "start" "-a" "e5a4460a375c0d70152277053971ab0788d3d23060d0d77c66a28c8662a0f6f0", kill_on_drop: false }` [INFO] [stderr] Compiling unit8 v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `std::fmt::Debug` [INFO] [stdout] --> src/main.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 2 | use std::fmt::Debug; [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `i` [INFO] [stdout] --> src/main.rs:12:9 [INFO] [stdout] | [INFO] [stdout] 12 | for i in 0..100 { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `index0` [INFO] [stdout] --> src/main.rs:50:9 [INFO] [stdout] | [INFO] [stdout] 50 | let index0 = &list[0]; [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_index0` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `index1` [INFO] [stdout] --> src/main.rs:53:17 [INFO] [stdout] | [INFO] [stdout] 53 | if let Some(index1) = index1_option {} else {} [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_index1` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `string` [INFO] [stdout] --> src/main.rs:66:9 [INFO] [stdout] | [INFO] [stdout] 66 | let string = String::new(); [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_string` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `string` [INFO] [stdout] --> src/main.rs:68:9 [INFO] [stdout] | [INFO] [stdout] 68 | let string = String::from("string"); [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_string` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `new_s` [INFO] [stdout] --> src/main.rs:84:9 [INFO] [stdout] | [INFO] [stdout] 84 | let new_s = format!("{}-{}", new_s, s); [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_new_s` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `k` [INFO] [stdout] --> src/main.rs:108:10 [INFO] [stdout] | [INFO] [stdout] 108 | for (k, v) in map {} [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_k` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `v` [INFO] [stdout] --> src/main.rs:108:13 [INFO] [stdout] | [INFO] [stdout] 108 | for (k, v) in map {} [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_v` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `vec` is never used [INFO] [stdout] --> src/main.rs:39:4 [INFO] [stdout] | [INFO] [stdout] 39 | fn vec() { [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 `str_and_string` is never used [INFO] [stdout] --> src/main.rs:62:4 [INFO] [stdout] | [INFO] [stdout] 62 | fn str_and_string() { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `hash_map` is never used [INFO] [stdout] --> src/main.rs:88:4 [INFO] [stdout] | [INFO] [stdout] 88 | fn hash_map() { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.32s [INFO] running `Command { std: "docker" "inspect" "e5a4460a375c0d70152277053971ab0788d3d23060d0d77c66a28c8662a0f6f0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e5a4460a375c0d70152277053971ab0788d3d23060d0d77c66a28c8662a0f6f0", kill_on_drop: false }` [INFO] [stdout] e5a4460a375c0d70152277053971ab0788d3d23060d0d77c66a28c8662a0f6f0 [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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 272770c7d5d5d502f165bbd29ca3f9c8736ff191cedbe433e7e250770d64dd2a [INFO] running `Command { std: "docker" "start" "-a" "272770c7d5d5d502f165bbd29ca3f9c8736ff191cedbe433e7e250770d64dd2a", kill_on_drop: false }` [INFO] [stderr] warning: unused import: `std::fmt::Debug` [INFO] [stderr] --> src/main.rs:2:5 [INFO] [stderr] | [INFO] [stderr] 2 | use std::fmt::Debug; [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `i` [INFO] [stderr] --> src/main.rs:12:9 [INFO] [stderr] | [INFO] [stderr] 12 | for i in 0..100 { [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `index0` [INFO] [stderr] --> src/main.rs:50:9 [INFO] [stderr] | [INFO] [stderr] 50 | let index0 = &list[0]; [INFO] [stderr] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_index0` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `index1` [INFO] [stderr] --> src/main.rs:53:17 [INFO] [stderr] | [INFO] [stderr] 53 | if let Some(index1) = index1_option {} else {} [INFO] [stderr] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_index1` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `string` [INFO] [stderr] --> src/main.rs:66:9 [INFO] [stderr] | [INFO] [stderr] 66 | let string = String::new(); [INFO] [stderr] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_string` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `string` [INFO] [stderr] --> src/main.rs:68:9 [INFO] [stderr] | [INFO] [stderr] 68 | let string = String::from("string"); [INFO] [stderr] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_string` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `new_s` [INFO] [stderr] --> src/main.rs:84:9 [INFO] [stderr] | [INFO] [stderr] 84 | let new_s = format!("{}-{}", new_s, s); [INFO] [stderr] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_new_s` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `k` [INFO] [stderr] --> src/main.rs:108:10 [INFO] [stderr] | [INFO] [stderr] 108 | for (k, v) in map {} [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_k` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `v` [INFO] [stderr] --> src/main.rs:108:13 [INFO] [stderr] | [INFO] [stderr] 108 | for (k, v) in map {} [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_v` [INFO] [stderr] [INFO] [stderr] warning: function `vec` is never used [INFO] [stderr] --> src/main.rs:39:4 [INFO] [stderr] | [INFO] [stderr] 39 | fn vec() { [INFO] [stderr] | ^^^ [INFO] [stderr] | [INFO] [stdout] [INFO] [stderr] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] running 0 tests [INFO] [stderr] [INFO] [stderr] warning: function `str_and_string` is never used [INFO] [stderr] --> src/main.rs:62:4 [INFO] [stderr] | [INFO] [stderr] 62 | fn str_and_string() { [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function `hash_map` is never used [INFO] [stderr] --> src/main.rs:88:4 [INFO] [stderr] | [INFO] [stderr] 88 | fn hash_map() { [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: `unit8` (bin "unit8" test) generated 12 warnings (run `cargo fix --bin "unit8" -p unit8 --tests` to apply 9 suggestions) [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s [INFO] [stderr] Running unittests src/main.rs (/opt/rustwide/target/debug/deps/unit8-653c8d50c35e4ff3) [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" "272770c7d5d5d502f165bbd29ca3f9c8736ff191cedbe433e7e250770d64dd2a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "272770c7d5d5d502f165bbd29ca3f9c8736ff191cedbe433e7e250770d64dd2a", kill_on_drop: false }` [INFO] [stdout] 272770c7d5d5d502f165bbd29ca3f9c8736ff191cedbe433e7e250770d64dd2a