[INFO] fetching crate betabear 0.1.1...
[INFO] testing betabear-0.1.1 against 1.55.0 for beta-1.56-1
[INFO] extracting crate betabear 0.1.1 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate betabear 0.1.1 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate betabear 0.1.1
[INFO] finished tweaking crates.io crate betabear 0.1.1
[INFO] tweaked toml for crates.io crate betabear 0.1.1 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6da2b2ff6f94e2ea913abd08c843cac6a0c468c695d6ec73b625f4a89ee4f1f9
[INFO] running `Command { std: "docker" "start" "-a" "6da2b2ff6f94e2ea913abd08c843cac6a0c468c695d6ec73b625f4a89ee4f1f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6da2b2ff6f94e2ea913abd08c843cac6a0c468c695d6ec73b625f4a89ee4f1f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6da2b2ff6f94e2ea913abd08c843cac6a0c468c695d6ec73b625f4a89ee4f1f9", kill_on_drop: false }`
[INFO] [stdout] 6da2b2ff6f94e2ea913abd08c843cac6a0c468c695d6ec73b625f4a89ee4f1f9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d12e38594c435cf1fe3047b0c3cc2846552ba7448dc7df525a03d6305a6b0529
[INFO] running `Command { std: "docker" "start" "-a" "d12e38594c435cf1fe3047b0c3cc2846552ba7448dc7df525a03d6305a6b0529", kill_on_drop: false }`
[INFO] [stderr]    Compiling betabear v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.08s
[INFO] running `Command { std: "docker" "inspect" "d12e38594c435cf1fe3047b0c3cc2846552ba7448dc7df525a03d6305a6b0529", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d12e38594c435cf1fe3047b0c3cc2846552ba7448dc7df525a03d6305a6b0529", kill_on_drop: false }`
[INFO] [stdout] d12e38594c435cf1fe3047b0c3cc2846552ba7448dc7df525a03d6305a6b0529
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b243c247bc3974dbe6c270e13a71ec8370182b8acb00b3638feff69934c7080f
[INFO] running `Command { std: "docker" "start" "-a" "b243c247bc3974dbe6c270e13a71ec8370182b8acb00b3638feff69934c7080f", kill_on_drop: false }`
[INFO] [stderr]    Compiling betabear v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.58s
[INFO] running `Command { std: "docker" "inspect" "b243c247bc3974dbe6c270e13a71ec8370182b8acb00b3638feff69934c7080f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b243c247bc3974dbe6c270e13a71ec8370182b8acb00b3638feff69934c7080f", kill_on_drop: false }`
[INFO] [stdout] b243c247bc3974dbe6c270e13a71ec8370182b8acb00b3638feff69934c7080f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 72ac29b077e86d5cb5a63a1b711f8ea7f0632334a0fb304d068d04a54caec64d
[INFO] running `Command { std: "docker" "start" "-a" "72ac29b077e86d5cb5a63a1b711f8ea7f0632334a0fb304d068d04a54caec64d", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/betabear-79730da8dc9389f1)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test find_in_order ... ok
[INFO] [stdout] test find_trivial_word ... 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 (/opt/rustwide/target/debug/deps/betabear-4544e8ab48f68791)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stderr]    Doc-tests betabear
[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 2 tests
[INFO] [stdout] test src/lib.rs - build_with_letters (line 5) ... ok
[INFO] [stdout] test src/lib.rs - search_for_words (line 34) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.47s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "72ac29b077e86d5cb5a63a1b711f8ea7f0632334a0fb304d068d04a54caec64d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "72ac29b077e86d5cb5a63a1b711f8ea7f0632334a0fb304d068d04a54caec64d", kill_on_drop: false }`
[INFO] [stdout] 72ac29b077e86d5cb5a63a1b711f8ea7f0632334a0fb304d068d04a54caec64d