[INFO] fetching crate scientist 0.1.2...
[INFO] checking scientist-0.1.2 against try#8de4b308b608cded0ebccf658a0fc719bce87d4e for pr-89056
[INFO] extracting crate scientist 0.1.2 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate scientist 0.1.2 on toolchain 8de4b308b608cded0ebccf658a0fc719bce87d4e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate scientist 0.1.2
[INFO] finished tweaking crates.io crate scientist 0.1.2
[INFO] tweaked toml for crates.io crate scientist 0.1.2 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 57db2bdd5dd63fc6aabdb4dd294b6a6999919d64845855a9420d1e28c595c2bd
[INFO] running `Command { std: "docker" "start" "-a" "57db2bdd5dd63fc6aabdb4dd294b6a6999919d64845855a9420d1e28c595c2bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "57db2bdd5dd63fc6aabdb4dd294b6a6999919d64845855a9420d1e28c595c2bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "57db2bdd5dd63fc6aabdb4dd294b6a6999919d64845855a9420d1e28c595c2bd", kill_on_drop: false }`
[INFO] [stdout] 57db2bdd5dd63fc6aabdb4dd294b6a6999919d64845855a9420d1e28c595c2bd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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=forbid" "-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" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8de565ac9dd258ad102c0118b243af8b283769f2f656bc99e67083978c334d45
[INFO] running `Command { std: "docker" "start" "-a" "8de565ac9dd258ad102c0118b243af8b283769f2f656bc99e67083978c334d45", kill_on_drop: false }`
[INFO] [stderr]     Checking scientist v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.22s
[INFO] running `Command { std: "docker" "inspect" "8de565ac9dd258ad102c0118b243af8b283769f2f656bc99e67083978c334d45", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8de565ac9dd258ad102c0118b243af8b283769f2f656bc99e67083978c334d45", kill_on_drop: false }`
[INFO] [stdout] 8de565ac9dd258ad102c0118b243af8b283769f2f656bc99e67083978c334d45