[INFO] fetching crate matter-cli 0.1.0-alpha1...
[INFO] testing matter-cli-0.1.0-alpha1 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate matter-cli 0.1.0-alpha1 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate matter-cli 0.1.0-alpha1
[INFO] finished tweaking crates.io crate matter-cli 0.1.0-alpha1
[INFO] tweaked toml for crates.io crate matter-cli 0.1.0-alpha1 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate matter-cli 0.1.0-alpha1 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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] Updating crates.io index
[INFO] [stderr] Blocking waiting for file lock on package cache
[INFO] [stderr] Locking 53 packages to latest compatible versions
[INFO] [stderr] Adding matter v0.1.0-alpha3 (available: v0.1.0-alpha4)
[INFO] [stderr] Adding structopt v0.2.18 (available: v0.3.26)
[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-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 245f6d520868237902a105dfc8e705588ac32121690ff8d436a9217768ea6f1a
[INFO] running `Command { std: "docker" "start" "-a" "245f6d520868237902a105dfc8e705588ac32121690ff8d436a9217768ea6f1a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "245f6d520868237902a105dfc8e705588ac32121690ff8d436a9217768ea6f1a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "245f6d520868237902a105dfc8e705588ac32121690ff8d436a9217768ea6f1a", kill_on_drop: false }`
[INFO] [stdout] 245f6d520868237902a105dfc8e705588ac32121690ff8d436a9217768ea6f1a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 8dbdd03b7d8ea2fa199e41d283af2f5dfcbbdb24cab8bcf2e9a24af32c1f6783
[INFO] running `Command { std: "docker" "start" "-a" "8dbdd03b7d8ea2fa199e41d283af2f5dfcbbdb24cab8bcf2e9a24af32c1f6783", kill_on_drop: false }`
[INFO] [stderr] Compiling unicode-segmentation v1.12.0
[INFO] [stderr] Compiling syn v1.0.109
[INFO] [stderr] Compiling proc-macro2 v0.4.30
[INFO] [stderr] Compiling unicode-width v0.1.14
[INFO] [stderr] Compiling unicode-xid v0.1.0
[INFO] [stderr] Compiling ansi_term v0.12.1
[INFO] [stderr] Compiling vec_map v0.8.2
[INFO] [stderr] Compiling syn v0.15.44
[INFO] [stderr] Compiling strsim v0.8.0
[INFO] [stderr] Compiling indexmap v1.9.3
[INFO] [stderr] Compiling atty v0.2.14
[INFO] [stderr] Compiling linked-hash-map v0.5.6
[INFO] [stderr] Compiling toml v0.5.11
[INFO] [stderr] Compiling yaml-rust v0.4.5
[INFO] [stderr] Compiling textwrap v0.11.0
[INFO] [stderr] Compiling heck v0.3.3
[INFO] [stderr] Compiling clap v2.34.0
[INFO] [stderr] Compiling serde_yaml v0.8.26
[INFO] [stderr] Compiling quote v0.6.13
[INFO] [stderr] Compiling proc-macro-error v1.0.4
[INFO] [stderr] Compiling structopt-derive v0.4.18
[INFO] [stderr] Compiling structopt-derive v0.2.18
[INFO] [stderr] Compiling structopt v0.2.18
[INFO] [stderr] Compiling structopt v0.3.26
[INFO] [stderr] Compiling matter v0.1.0-alpha3
[INFO] [stderr] Compiling matter-cli v0.1.0-alpha1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout] --> src/main.rs:32:9
[INFO] [stdout] |
[INFO] [stdout] 31 | match matter::extract(&contents) {
[INFO] [stdout] | -------------------------- this expression has type `Result