[INFO] fetching crate useless_minigrep 4.2.0...
[INFO] testing useless_minigrep-4.2.0 against beta-2025-10-28 for beta-1.92-2
[INFO] extracting crate useless_minigrep 4.2.0 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate useless_minigrep 4.2.0
[INFO] finished tweaking crates.io crate useless_minigrep 4.2.0
[INFO] tweaked toml for crates.io crate useless_minigrep 4.2.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate useless_minigrep 4.2.0 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 useless_minigrep 4.2.0 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-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 3a5a5a8d1e94549cc56ff5b673f799d56910183a449cb1d95cd9f73fc2efd96b
[INFO] running `Command { std: "docker" "start" "-a" "3a5a5a8d1e94549cc56ff5b673f799d56910183a449cb1d95cd9f73fc2efd96b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3a5a5a8d1e94549cc56ff5b673f799d56910183a449cb1d95cd9f73fc2efd96b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3a5a5a8d1e94549cc56ff5b673f799d56910183a449cb1d95cd9f73fc2efd96b", kill_on_drop: false }`
[INFO] [stdout] 3a5a5a8d1e94549cc56ff5b673f799d56910183a449cb1d95cd9f73fc2efd96b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 8a993924ffb0edadbe69e8e15c3e7541029be92d6e8f3f63de9e13a0010efbad
[INFO] running `Command { std: "docker" "start" "-a" "8a993924ffb0edadbe69e8e15c3e7541029be92d6e8f3f63de9e13a0010efbad", kill_on_drop: false }`
[INFO] [stderr]    Compiling useless_minigrep v4.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.56s
[INFO] running `Command { std: "docker" "inspect" "8a993924ffb0edadbe69e8e15c3e7541029be92d6e8f3f63de9e13a0010efbad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8a993924ffb0edadbe69e8e15c3e7541029be92d6e8f3f63de9e13a0010efbad", kill_on_drop: false }`
[INFO] [stdout] 8a993924ffb0edadbe69e8e15c3e7541029be92d6e8f3f63de9e13a0010efbad
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 1c103e198f1ee7ec99d118d479cc738440b147922bcda8c67c7196c9c999c3ac
[INFO] running `Command { std: "docker" "start" "-a" "1c103e198f1ee7ec99d118d479cc738440b147922bcda8c67c7196c9c999c3ac", kill_on_drop: false }`
[INFO] [stderr]    Compiling useless_minigrep v4.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.48s
[INFO] running `Command { std: "docker" "inspect" "1c103e198f1ee7ec99d118d479cc738440b147922bcda8c67c7196c9c999c3ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1c103e198f1ee7ec99d118d479cc738440b147922bcda8c67c7196c9c999c3ac", kill_on_drop: false }`
[INFO] [stdout] 1c103e198f1ee7ec99d118d479cc738440b147922bcda8c67c7196c9c999c3ac
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 79338a8d76a634ba3fdfabbab873241f0496050c2cfff285a6fa36cf77f3373d
[INFO] running `Command { std: "docker" "start" "-a" "79338a8d76a634ba3fdfabbab873241f0496050c2cfff285a6fa36cf77f3373d", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/useless_minigrep-2949b06c2e99249b)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test tests::case_sensitive ... ok
[INFO] [stdout] test tests::case_insensitive ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/useless_minigrep-92e298365eac6ada)
[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 useless_minigrep
[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" "79338a8d76a634ba3fdfabbab873241f0496050c2cfff285a6fa36cf77f3373d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "79338a8d76a634ba3fdfabbab873241f0496050c2cfff285a6fa36cf77f3373d", kill_on_drop: false }`
[INFO] [stdout] 79338a8d76a634ba3fdfabbab873241f0496050c2cfff285a6fa36cf77f3373d