[INFO] fetching crate mintyml-cli 0.1.19...
[INFO] testing mintyml-cli-0.1.19 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate mintyml-cli 0.1.19 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate mintyml-cli 0.1.19
[INFO] finished tweaking crates.io crate mintyml-cli 0.1.19
[INFO] tweaked toml for crates.io crate mintyml-cli 0.1.19 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate mintyml-cli 0.1.19 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 crates.io crate mintyml-cli 0.1.19 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-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 03d2ba53f72ae59a263142529e81efcabd49ec4dba4f83a30a591365323e6627
[INFO] running `Command { std: "docker" "start" "-a" "03d2ba53f72ae59a263142529e81efcabd49ec4dba4f83a30a591365323e6627", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "03d2ba53f72ae59a263142529e81efcabd49ec4dba4f83a30a591365323e6627", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "03d2ba53f72ae59a263142529e81efcabd49ec4dba4f83a30a591365323e6627", kill_on_drop: false }`
[INFO] [stdout] 03d2ba53f72ae59a263142529e81efcabd49ec4dba4f83a30a591365323e6627
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] f127ad6a1db8e31d8a35581175d1505961088f01737d5d7f16985878756314ac
[INFO] running `Command { std: "docker" "start" "-a" "f127ad6a1db8e31d8a35581175d1505961088f01737d5d7f16985878756314ac", kill_on_drop: false }`
[INFO] [stderr] Compiling proc-macro2 v1.0.83
[INFO] [stderr] Compiling memchr v2.7.2
[INFO] [stderr] Compiling rustix v0.38.34
[INFO] [stderr] Compiling syn v1.0.109
[INFO] [stderr] Compiling regex-syntax v0.8.3
[INFO] [stderr] Compiling utf8parse v0.2.1
[INFO] [stderr] Compiling linux-raw-sys v0.4.14
[INFO] [stderr] Compiling bitflags v2.5.0
[INFO] [stderr] Compiling anstyle-query v1.0.3
[INFO] [stderr] Compiling either v1.12.0
[INFO] [stderr] Compiling serde v1.0.202
[INFO] [stderr] Compiling smallvec v1.13.2
[INFO] [stderr] Compiling serde_json v1.0.117
[INFO] [stderr] Compiling once_cell v1.19.0
[INFO] [stderr] Compiling clap_lex v0.7.0
[INFO] [stderr] Compiling anstyle-parse v0.2.4
[INFO] [stderr] Compiling rayon v1.10.0
[INFO] [stderr] Compiling anstream v0.6.14
[INFO] [stderr] Compiling aho-corasick v1.1.3
[INFO] [stderr] Compiling quote v1.0.36
[INFO] [stderr] Compiling terminal_size v0.3.0
[INFO] [stderr] Compiling clap_builder v4.5.2
[INFO] [stderr] Compiling syn v2.0.65
[INFO] [stderr] Compiling regex-automata v0.4.6
[INFO] [stderr] Compiling derive_more v0.99.17
[INFO] [stderr] Compiling serde_derive v1.0.202
[INFO] [stderr] Compiling clap_derive v4.5.4
[INFO] [stderr] Compiling regex v1.10.4
[INFO] [stderr] Compiling gramma v0.2.23
[INFO] [stderr] Compiling mintyml v0.1.19
[INFO] [stderr] Compiling clap v4.5.4
[INFO] [stderr] Compiling mintyml-cli v0.1.19 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait `OptionExt` is never used
[INFO] [stdout] --> src/utils.rs:28:11
[INFO] [stdout] |
[INFO] [stdout] 28 | pub trait OptionExt: Into