[INFO] cloning repository https://github.com/kaicoh/codecrafters-grep-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kaicoh/codecrafters-grep-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkaicoh%2Fcodecrafters-grep-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkaicoh%2Fcodecrafters-grep-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8438942eceecc1de24be1d4964688b8e9a15ca34
[INFO] testing kaicoh/codecrafters-grep-rust against beta-2026-04-21 for beta-1.96-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkaicoh%2Fcodecrafters-grep-rust" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/kaicoh/codecrafters-grep-rust
[INFO] finished tweaking git repo https://github.com/kaicoh/codecrafters-grep-rust
[INFO] tweaked toml for git repo https://github.com/kaicoh/codecrafters-grep-rust written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/kaicoh/codecrafters-grep-rust 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] crate git repo https://github.com/kaicoh/codecrafters-grep-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-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-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2f4d0562e80b1a07ca5c04ab7df7747b8cd624af3c8d89b7ea6b1d56b0478b7c
[INFO] running `Command { std: "docker" "start" "-a" "2f4d0562e80b1a07ca5c04ab7df7747b8cd624af3c8d89b7ea6b1d56b0478b7c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2f4d0562e80b1a07ca5c04ab7df7747b8cd624af3c8d89b7ea6b1d56b0478b7c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2f4d0562e80b1a07ca5c04ab7df7747b8cd624af3c8d89b7ea6b1d56b0478b7c", kill_on_drop: false }`
[INFO] [stdout] 2f4d0562e80b1a07ca5c04ab7df7747b8cd624af3c8d89b7ea6b1d56b0478b7c
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 38514c29aa146a6bb5f644c3fc24ce12c124935f8e56f9c09b476e4316b9db3f
[INFO] running `Command { std: "docker" "start" "-a" "38514c29aa146a6bb5f644c3fc24ce12c124935f8e56f9c09b476e4316b9db3f", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.86
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling colorchoice v1.0.3
[INFO] [stderr]    Compiling anstyle v1.0.10
[INFO] [stderr]    Compiling anstyle-query v1.1.2
[INFO] [stderr]    Compiling anyhow v1.0.86
[INFO] [stderr]    Compiling anstyle-parse v0.2.6
[INFO] [stderr]    Compiling thiserror v1.0.63
[INFO] [stderr]    Compiling clap_lex v0.7.4
[INFO] [stderr]    Compiling bytes v1.7.1
[INFO] [stderr]    Compiling anstream v0.6.18
[INFO] [stderr]    Compiling clap_builder v4.5.32
[INFO] [stderr]    Compiling quote v1.0.36
[INFO] [stderr]    Compiling syn v2.0.75
[INFO] [stderr]    Compiling clap_derive v4.5.32
[INFO] [stderr]    Compiling thiserror-impl v1.0.63
[INFO] [stderr]    Compiling clap v4.5.32
[INFO] [stderr]    Compiling codecrafters-grep v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 16.14s
[INFO] running `Command { std: "docker" "inspect" "38514c29aa146a6bb5f644c3fc24ce12c124935f8e56f9c09b476e4316b9db3f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "38514c29aa146a6bb5f644c3fc24ce12c124935f8e56f9c09b476e4316b9db3f", kill_on_drop: false }`
[INFO] [stdout] 38514c29aa146a6bb5f644c3fc24ce12c124935f8e56f9c09b476e4316b9db3f
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8ff0289d27c34e0db86cd265ed0d4dc75409da5cceb8afdd8129c0af2e176507
[INFO] running `Command { std: "docker" "start" "-a" "8ff0289d27c34e0db86cd265ed0d4dc75409da5cceb8afdd8129c0af2e176507", kill_on_drop: false }`
[INFO] [stderr]    Compiling codecrafters-grep v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.78s
[INFO] running `Command { std: "docker" "inspect" "8ff0289d27c34e0db86cd265ed0d4dc75409da5cceb8afdd8129c0af2e176507", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8ff0289d27c34e0db86cd265ed0d4dc75409da5cceb8afdd8129c0af2e176507", kill_on_drop: false }`
[INFO] [stdout] 8ff0289d27c34e0db86cd265ed0d4dc75409da5cceb8afdd8129c0af2e176507
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 709497ecdd3569f9d8bb7022189cac7caaef9d6cab625fadac3311a17799eaa5
[INFO] running `Command { std: "docker" "start" "-a" "709497ecdd3569f9d8bb7022189cac7caaef9d6cab625fadac3311a17799eaa5", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/codecrafters_grep-30fd7e6fa9d5c1a6)
[INFO] [stdout] 
[INFO] [stdout] running 25 tests
[INFO] [stdout] test re::letter::tests::it_iterates_over_ascii_characters ... ok
[INFO] [stdout] test re::pattern::tests::it_parses_digit ... ok
[INFO] [stdout] test re::letter::tests::it_iterates_over_non_ascii_characters ... ok
[INFO] [stdout] test re::pattern::tests::it_parses_alphanumeric ... ok
[INFO] [stdout] test re::pattern::tests::it_parses_alternations ... ok
[INFO] [stdout] test re::pattern::tests::it_parses_lit ... ok
[INFO] [stdout] test re::pattern::tests::it_parses_more_than_one_pattern ... ok
[INFO] [stdout] test re::pattern::tests::it_parses_more_than_zero_pattern ... ok
[INFO] [stdout] test re::pattern::tests::it_parses_multiple_patterns ... ok
[INFO] [stdout] test re::pattern::tests::it_parses_nested_group ... ok
[INFO] [stdout] test re::pattern::tests::it_parses_positive_group ... ok
[INFO] [stdout] test re::pattern::tests::it_parses_wildcard ... ok
[INFO] [stdout] test re::pattern::tests::it_parses_zero_or_one_pattern ... ok
[INFO] [stdout] test re::tests::it_matches_alphanumeric_characters ... ok
[INFO] [stdout] test re::tests::it_matches_alternation ... ok
[INFO] [stdout] test re::tests::it_matches_combining_character_classes ... ok
[INFO] [stdout] test re::tests::it_matches_negative_character_group ... ok
[INFO] [stdout] test re::tests::it_matches_wildcard ... ok
[INFO] [stdout] test re::tests::it_matches_positive_character_group ... ok
[INFO] [stdout] test re::tests::it_matches_digits ... ok
[INFO] [stdout] test re::tests::it_matches_with_end_anchor ... ok
[INFO] [stdout] test re::tests::it_matches_with_start_anchor ... ok
[INFO] [stdout] test re::tests::it_matches_literals ... ok
[INFO] [stdout] test re::tests::it_matches_zero_or_one_times ... ok
[INFO] [stdout] test re::pattern::tests::it_parses_negative_group ... ok
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/codecrafters_grep-7da290ef5fe13710)
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 25 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.12s
[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 codecrafters_grep
[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" "709497ecdd3569f9d8bb7022189cac7caaef9d6cab625fadac3311a17799eaa5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "709497ecdd3569f9d8bb7022189cac7caaef9d6cab625fadac3311a17799eaa5", kill_on_drop: false }`
[INFO] [stdout] 709497ecdd3569f9d8bb7022189cac7caaef9d6cab625fadac3311a17799eaa5
