[INFO] fetching crate ronfmt 0.1.0...
[INFO] testing ronfmt-0.1.0 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate ronfmt 0.1.0 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate ronfmt 0.1.0
[INFO] finished tweaking crates.io crate ronfmt 0.1.0
[INFO] tweaked toml for crates.io crate ronfmt 0.1.0 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate ronfmt 0.1.0 on toolchain beta-2026-04-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 34 packages to latest compatible versions
[INFO] [stderr]       Adding clap v2.34.0 (available: v4.6.1)
[INFO] [stderr]       Adding generic-array v0.14.7 (available: v0.14.9)
[INFO] [stderr]       Adding itertools v0.7.11 (available: v0.14.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 94dea69b85615316d04fc29f0bfc2ad942bbe55a14685d21f5ba6bad6ac97153
[INFO] running `Command { std: "docker" "start" "-a" "94dea69b85615316d04fc29f0bfc2ad942bbe55a14685d21f5ba6bad6ac97153", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "94dea69b85615316d04fc29f0bfc2ad942bbe55a14685d21f5ba6bad6ac97153", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "94dea69b85615316d04fc29f0bfc2ad942bbe55a14685d21f5ba6bad6ac97153", kill_on_drop: false }`
[INFO] [stdout] 94dea69b85615316d04fc29f0bfc2ad942bbe55a14685d21f5ba6bad6ac97153
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e94376b7ddaf77c73bed1ced145beb25a24597b4bd72875b49828b3e3fa2bd92
[INFO] running `Command { std: "docker" "start" "-a" "e94376b7ddaf77c73bed1ced145beb25a24597b4bd72875b49828b3e3fa2bd92", kill_on_drop: false }`
[INFO] [stderr]    Compiling ucd-trie v0.1.7
[INFO] [stderr]    Compiling libc v0.2.186
[INFO] [stderr]    Compiling vec_map v0.8.2
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling itertools v0.7.11
[INFO] [stderr]    Compiling pest v2.8.6
[INFO] [stderr]    Compiling pest_meta v2.8.6
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling clap v2.34.0
[INFO] [stderr]    Compiling pest_generator v2.8.6
[INFO] [stderr]    Compiling pest_derive v2.8.6
[INFO] [stderr]    Compiling ronfmt v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/ast/display.rs:10:13
[INFO] [stdout]    |
[INFO] [stdout] 10 |             writeln!(f, "#![enable({})]", extensions.iter().join(", "));
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 10 |             let _ = writeln!(f, "#![enable({})]", extensions.iter().join(", "));
[INFO] [stdout]    |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 13.08s
[INFO] running `Command { std: "docker" "inspect" "e94376b7ddaf77c73bed1ced145beb25a24597b4bd72875b49828b3e3fa2bd92", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e94376b7ddaf77c73bed1ced145beb25a24597b4bd72875b49828b3e3fa2bd92", kill_on_drop: false }`
[INFO] [stdout] e94376b7ddaf77c73bed1ced145beb25a24597b4bd72875b49828b3e3fa2bd92
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a7004f0c73afc4ac3a07315d59889dc33cb305b1e225c7fa084cc8606be12049
[INFO] running `Command { std: "docker" "start" "-a" "a7004f0c73afc4ac3a07315d59889dc33cb305b1e225c7fa084cc8606be12049", kill_on_drop: false }`
[INFO] [stderr]    Compiling ronfmt v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/ast/display.rs:10:13
[INFO] [stdout]    |
[INFO] [stdout] 10 |             writeln!(f, "#![enable({})]", extensions.iter().join(", "));
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 10 |             let _ = writeln!(f, "#![enable({})]", extensions.iter().join(", "));
[INFO] [stdout]    |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.57s
[INFO] running `Command { std: "docker" "inspect" "a7004f0c73afc4ac3a07315d59889dc33cb305b1e225c7fa084cc8606be12049", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a7004f0c73afc4ac3a07315d59889dc33cb305b1e225c7fa084cc8606be12049", kill_on_drop: false }`
[INFO] [stdout] a7004f0c73afc4ac3a07315d59889dc33cb305b1e225c7fa084cc8606be12049
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 09af840a37163552be322be7b8ec62f0bfa6eaf35447d5ce103a9458062f40f2
[INFO] running `Command { std: "docker" "start" "-a" "09af840a37163552be322be7b8ec62f0bfa6eaf35447d5ce103a9458062f40f2", kill_on_drop: false }`
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> src/ast/display.rs:10:13
[INFO] [stderr]    |
[INFO] [stderr] 10 |             writeln!(f, "#![enable({})]", extensions.iter().join(", "));
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]    |
[INFO] [stderr] 10 |             let _ = writeln!(f, "#![enable({})]", extensions.iter().join(", "));
[INFO] [stderr]    |             +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: `ronfmt` (bin "ronfmt" test) generated 1 warning
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.11s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/ronfmt-9717a8e7a13a0911)
[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" "09af840a37163552be322be7b8ec62f0bfa6eaf35447d5ce103a9458062f40f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "09af840a37163552be322be7b8ec62f0bfa6eaf35447d5ce103a9458062f40f2", kill_on_drop: false }`
[INFO] [stdout] 09af840a37163552be322be7b8ec62f0bfa6eaf35447d5ce103a9458062f40f2
