[INFO] fetching crate twisty-puzzle 0.1.2...
[INFO] testing twisty-puzzle-0.1.2 against 1.90.0 for beta-1.91-3
[INFO] extracting crate twisty-puzzle 0.1.2 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate twisty-puzzle 0.1.2
[INFO] finished tweaking crates.io crate twisty-puzzle 0.1.2
[INFO] tweaked toml for crates.io crate twisty-puzzle 0.1.2 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate twisty-puzzle 0.1.2 on toolchain 1.90.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "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" "+1.90.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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" "+1.90.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e6d025c56d7db267f128c497efe6f0da58e6fe5793d6ad1a31ff98b98a93c348
[INFO] running `Command { std: "docker" "start" "-a" "e6d025c56d7db267f128c497efe6f0da58e6fe5793d6ad1a31ff98b98a93c348", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e6d025c56d7db267f128c497efe6f0da58e6fe5793d6ad1a31ff98b98a93c348", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e6d025c56d7db267f128c497efe6f0da58e6fe5793d6ad1a31ff98b98a93c348", kill_on_drop: false }`
[INFO] [stdout] e6d025c56d7db267f128c497efe6f0da58e6fe5793d6ad1a31ff98b98a93c348
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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" "+1.90.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b61d8524937418bbb4099a1aad7d91ea950cabdf68e86cc4e5f77c4cb3a721c0
[INFO] running `Command { std: "docker" "start" "-a" "b61d8524937418bbb4099a1aad7d91ea950cabdf68e86cc4e5f77c4cb3a721c0", kill_on_drop: false }`
[INFO] [stderr]    Compiling twisty-puzzle v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] running `Command { std: "docker" "inspect" "b61d8524937418bbb4099a1aad7d91ea950cabdf68e86cc4e5f77c4cb3a721c0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b61d8524937418bbb4099a1aad7d91ea950cabdf68e86cc4e5f77c4cb3a721c0", kill_on_drop: false }`
[INFO] [stdout] b61d8524937418bbb4099a1aad7d91ea950cabdf68e86cc4e5f77c4cb3a721c0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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" "+1.90.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 878bcecbc889ead47309426af3c9be078c29122f58ec4e6dae0848cbc7d59183
[INFO] running `Command { std: "docker" "start" "-a" "878bcecbc889ead47309426af3c9be078c29122f58ec4e6dae0848cbc7d59183", kill_on_drop: false }`
[INFO] [stderr]    Compiling twisty-puzzle v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.12s
[INFO] running `Command { std: "docker" "inspect" "878bcecbc889ead47309426af3c9be078c29122f58ec4e6dae0848cbc7d59183", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "878bcecbc889ead47309426af3c9be078c29122f58ec4e6dae0848cbc7d59183", kill_on_drop: false }`
[INFO] [stdout] 878bcecbc889ead47309426af3c9be078c29122f58ec4e6dae0848cbc7d59183
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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" "+1.90.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 91ab11c3ee337f7157261656f172fc75830c08a304c2f964754bb3c54425d084
[INFO] running `Command { std: "docker" "start" "-a" "91ab11c3ee337f7157261656f172fc75830c08a304c2f964754bb3c54425d084", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/twisty_puzzle-916b4d3ac6006a18)
[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 twisty_puzzle
[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" "91ab11c3ee337f7157261656f172fc75830c08a304c2f964754bb3c54425d084", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "91ab11c3ee337f7157261656f172fc75830c08a304c2f964754bb3c54425d084", kill_on_drop: false }`
[INFO] [stdout] 91ab11c3ee337f7157261656f172fc75830c08a304c2f964754bb3c54425d084