[INFO] cloning repository https://github.com/ldbrierley/learn_rust [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ldbrierley/learn_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fldbrierley%2Flearn_rust", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fldbrierley%2Flearn_rust'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] af7353e3dc163c6d1513ba6983737adfae726e62 [INFO] testing ldbrierley/learn_rust 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%2Fldbrierley%2Flearn_rust" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/ldbrierley/learn_rust [INFO] finished tweaking git repo https://github.com/ldbrierley/learn_rust [INFO] tweaked toml for git repo https://github.com/ldbrierley/learn_rust written to /workspace/builds/worker-7-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/ldbrierley/learn_rust 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/ldbrierley/learn_rust 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 3e59650358a7f4e3004e2b2663088abafdab283b6da3aa46281ff584df3660fa [INFO] running `Command { std: "docker" "start" "-a" "3e59650358a7f4e3004e2b2663088abafdab283b6da3aa46281ff584df3660fa", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "3e59650358a7f4e3004e2b2663088abafdab283b6da3aa46281ff584df3660fa", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3e59650358a7f4e3004e2b2663088abafdab283b6da3aa46281ff584df3660fa", kill_on_drop: false }` [INFO] [stdout] 3e59650358a7f4e3004e2b2663088abafdab283b6da3aa46281ff584df3660fa [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] eab0e8c4da253e9e559d8ed94f6fa20308c72248840a23a066ba8a4e0b8f7c41 [INFO] running `Command { std: "docker" "start" "-a" "eab0e8c4da253e9e559d8ed94f6fa20308c72248840a23a066ba8a4e0b8f7c41", kill_on_drop: false }` [INFO] [stderr] Compiling rand_core v0.3.0 [INFO] [stderr] Compiling libc v0.2.43 [INFO] [stderr] Compiling all_numbers v0.1.0 (/opt/rustwide/workdir/all_numbers) [INFO] [stdout] warning: unnecessary parentheses around `for` iterator expression [INFO] [stdout] --> all_numbers/src/main.rs:4:19 [INFO] [stdout] | [INFO] [stdout] 4 | for number in (1..) { [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 4 - for number in (1..) { [INFO] [stdout] 4 + for number in 1.. { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling rand_core v0.2.2 [INFO] [stderr] Compiling rand v0.5.5 [INFO] [stderr] Compiling guessing_game v0.1.0 (/opt/rustwide/workdir/guessing_game) [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.23s [INFO] running `Command { std: "docker" "inspect" "eab0e8c4da253e9e559d8ed94f6fa20308c72248840a23a066ba8a4e0b8f7c41", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "eab0e8c4da253e9e559d8ed94f6fa20308c72248840a23a066ba8a4e0b8f7c41", kill_on_drop: false }` [INFO] [stdout] eab0e8c4da253e9e559d8ed94f6fa20308c72248840a23a066ba8a4e0b8f7c41 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] b9e57d78ad2906d7cafc3f757134701049380a96e8003788fb0b196b33bcbb6f [INFO] running `Command { std: "docker" "start" "-a" "b9e57d78ad2906d7cafc3f757134701049380a96e8003788fb0b196b33bcbb6f", kill_on_drop: false }` [INFO] [stderr] Compiling guessing_game v0.1.0 (/opt/rustwide/workdir/guessing_game) [INFO] [stderr] Compiling all_numbers v0.1.0 (/opt/rustwide/workdir/all_numbers) [INFO] [stdout] warning: unnecessary parentheses around `for` iterator expression [INFO] [stdout] --> all_numbers/src/main.rs:4:19 [INFO] [stdout] | [INFO] [stdout] 4 | for number in (1..) { [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 4 - for number in (1..) { [INFO] [stdout] 4 + for number in 1.. { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.48s [INFO] running `Command { std: "docker" "inspect" "b9e57d78ad2906d7cafc3f757134701049380a96e8003788fb0b196b33bcbb6f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b9e57d78ad2906d7cafc3f757134701049380a96e8003788fb0b196b33bcbb6f", kill_on_drop: false }` [INFO] [stdout] b9e57d78ad2906d7cafc3f757134701049380a96e8003788fb0b196b33bcbb6f [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 70a56f26ad5c41bbe5c39139ea09e28cc545e04eb2209f8faab9dd9eba675693 [INFO] running `Command { std: "docker" "start" "-a" "70a56f26ad5c41bbe5c39139ea09e28cc545e04eb2209f8faab9dd9eba675693", kill_on_drop: false }` [INFO] [stderr] warning: unnecessary parentheses around `for` iterator expression [INFO] [stdout] [INFO] [stderr] --> all_numbers/src/main.rs:4:19 [INFO] [stdout] running 0 tests [INFO] [stderr] | [INFO] [stdout] [INFO] [stderr] 4 | for number in (1..) { [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stderr] | ^ ^ [INFO] [stdout] [INFO] [stderr] | [INFO] [stdout] [INFO] [stderr] = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] running 0 tests [INFO] [stderr] help: remove these parentheses [INFO] [stdout] [INFO] [stderr] | [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stderr] 4 - for number in (1..) { [INFO] [stdout] [INFO] [stderr] 4 + for number in 1.. { [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: `all_numbers` (bin "all_numbers" test) generated 1 warning (run `cargo fix --bin "all_numbers" --tests` to apply 1 suggestion) [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s [INFO] [stderr] Running unittests src/main.rs (/opt/rustwide/target/debug/deps/all_numbers-776e4469790331cb) [INFO] [stderr] Running unittests src/main.rs (/opt/rustwide/target/debug/deps/guessing_game-392229af82b803e7) [INFO] running `Command { std: "docker" "inspect" "70a56f26ad5c41bbe5c39139ea09e28cc545e04eb2209f8faab9dd9eba675693", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "70a56f26ad5c41bbe5c39139ea09e28cc545e04eb2209f8faab9dd9eba675693", kill_on_drop: false }` [INFO] [stdout] 70a56f26ad5c41bbe5c39139ea09e28cc545e04eb2209f8faab9dd9eba675693