[INFO] fetching crate word-chain-game 1.0.1...
[INFO] testing word-chain-game-1.0.1 against beta-2025-10-28 for beta-1.92-2
[INFO] extracting crate word-chain-game 1.0.1 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate word-chain-game 1.0.1
[INFO] finished tweaking crates.io crate word-chain-game 1.0.1
[INFO] tweaked toml for crates.io crate word-chain-game 1.0.1 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate word-chain-game 1.0.1 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 word-chain-game 1.0.1 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-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] a18487f2db8409f4660edc3e7914483deb79437f199ee232842ef14644d2a5cb
[INFO] running `Command { std: "docker" "start" "-a" "a18487f2db8409f4660edc3e7914483deb79437f199ee232842ef14644d2a5cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a18487f2db8409f4660edc3e7914483deb79437f199ee232842ef14644d2a5cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a18487f2db8409f4660edc3e7914483deb79437f199ee232842ef14644d2a5cb", kill_on_drop: false }`
[INFO] [stdout] a18487f2db8409f4660edc3e7914483deb79437f199ee232842ef14644d2a5cb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] b1c3d353507d2828b06c711133503876acfeeea34747f5148f88f36d8f0fe7c6
[INFO] running `Command { std: "docker" "start" "-a" "b1c3d353507d2828b06c711133503876acfeeea34747f5148f88f36d8f0fe7c6", kill_on_drop: false }`
[INFO] [stderr]    Compiling colored v2.1.0
[INFO] [stderr]    Compiling word-chain-game v1.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.08s
[INFO] running `Command { std: "docker" "inspect" "b1c3d353507d2828b06c711133503876acfeeea34747f5148f88f36d8f0fe7c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b1c3d353507d2828b06c711133503876acfeeea34747f5148f88f36d8f0fe7c6", kill_on_drop: false }`
[INFO] [stdout] b1c3d353507d2828b06c711133503876acfeeea34747f5148f88f36d8f0fe7c6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 8bd81d65571a3efb1dad40003e34e1528f2e0526fa9a65f2e5c2ce629766bc7f
[INFO] running `Command { std: "docker" "start" "-a" "8bd81d65571a3efb1dad40003e34e1528f2e0526fa9a65f2e5c2ce629766bc7f", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.7.1
[INFO] [stderr]    Compiling regex-syntax v0.8.2
[INFO] [stderr]    Compiling crossbeam-utils v0.8.18
[INFO] [stderr]    Compiling either v1.9.0
[INFO] [stderr]    Compiling libc v0.2.151
[INFO] [stderr]    Compiling predicates-core v1.0.6
[INFO] [stderr]    Compiling log v0.4.20
[INFO] [stderr]    Compiling rustix v0.38.28
[INFO] [stderr]    Compiling anstyle v1.0.4
[INFO] [stderr]    Compiling normalize-line-endings v0.3.0
[INFO] [stderr]    Compiling difflib v0.4.0
[INFO] [stderr]    Compiling num-traits v0.2.17
[INFO] [stderr]    Compiling walkdir v2.4.0
[INFO] [stderr]    Compiling linux-raw-sys v0.4.12
[INFO] [stderr]    Compiling bitflags v2.4.1
[INFO] [stderr]    Compiling termtree v0.4.1
[INFO] [stderr]    Compiling fastrand v2.0.1
[INFO] [stderr]    Compiling predicates-tree v1.0.9
[INFO] [stderr]    Compiling itertools v0.11.0
[INFO] [stderr]    Compiling aho-corasick v1.1.2
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.17
[INFO] [stderr]    Compiling float-cmp v0.9.0
[INFO] [stderr]    Compiling crossbeam-deque v0.8.4
[INFO] [stderr]    Compiling wait-timeout v0.2.0
[INFO] [stderr]    Compiling regex-automata v0.4.3
[INFO] [stderr]    Compiling tempfile v3.9.0
[INFO] [stderr]    Compiling bstr v1.9.0
[INFO] [stderr]    Compiling regex v1.10.2
[INFO] [stderr]    Compiling predicates v3.0.4
[INFO] [stderr]    Compiling globset v0.4.14
[INFO] [stderr]    Compiling assert_cmd v2.0.12
[INFO] [stderr]    Compiling ignore v0.4.21
[INFO] [stderr]    Compiling globwalk v0.8.1
[INFO] [stderr]    Compiling assert_fs v1.1.0
[INFO] [stderr]    Compiling word-chain-game v1.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 16.04s
[INFO] running `Command { std: "docker" "inspect" "8bd81d65571a3efb1dad40003e34e1528f2e0526fa9a65f2e5c2ce629766bc7f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8bd81d65571a3efb1dad40003e34e1528f2e0526fa9a65f2e5c2ce629766bc7f", kill_on_drop: false }`
[INFO] [stdout] 8bd81d65571a3efb1dad40003e34e1528f2e0526fa9a65f2e5c2ce629766bc7f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] bf063a534fbd94e495884d88cf5e0e95929df14e79314f2d79c1ca8ab6c5d98e
[INFO] running `Command { std: "docker" "start" "-a" "bf063a534fbd94e495884d88cf5e0e95929df14e79314f2d79c1ca8ab6c5d98e", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.11s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/word_chain_game-87e2a1fee02cbe40)
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/words-3d5daf724dd8ec7d)
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running tests/cli.rs (/opt/rustwide/target/debug/deps/cli-3b9a896b2d91ff91)
[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] [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] [stderr]    Doc-tests word_chain_game
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test help_string ... ok
[INFO] [stdout] test invalid_argument ... ok
[INFO] [stdout] test save_to_file ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[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" "bf063a534fbd94e495884d88cf5e0e95929df14e79314f2d79c1ca8ab6c5d98e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bf063a534fbd94e495884d88cf5e0e95929df14e79314f2d79c1ca8ab6c5d98e", kill_on_drop: false }`
[INFO] [stdout] bf063a534fbd94e495884d88cf5e0e95929df14e79314f2d79c1ca8ab6c5d98e