[INFO] fetching crate flipdot-serial 0.7.1...
[INFO] checking flipdot-serial-0.7.1 against try#c387b04bf028733cd561d62128c8a5eee4bc1458+rustflags=-Dtail_expr_drop_order for pr-130930
[INFO] extracting crate flipdot-serial 0.7.1 into /workspace/builds/worker-0-tc2/source
[INFO] validating manifest of crates.io crate flipdot-serial 0.7.1 on toolchain c387b04bf028733cd561d62128c8a5eee4bc1458
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate flipdot-serial 0.7.1
[INFO] finished tweaking crates.io crate flipdot-serial 0.7.1
[INFO] tweaked toml for crates.io crate flipdot-serial 0.7.1 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 27 packages to latest compatible versions
[INFO] [stderr]       Adding convert_case v0.4.0 (available: v0.6.0)
[INFO] [stderr]       Adding derive_more v0.99.18 (available: v1.0.0)
[INFO] [stderr]       Adding ioctl-rs v0.1.6 (available: v0.2.0)
[INFO] [stderr]       Adding termios v0.2.2 (available: v0.3.3)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b220da3bdc3c1dbae4b20e24f9cbebd64e8aa83d0924446c4ed576f5c8df249e
[INFO] running `Command { std: "docker" "start" "-a" "b220da3bdc3c1dbae4b20e24f9cbebd64e8aa83d0924446c4ed576f5c8df249e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b220da3bdc3c1dbae4b20e24f9cbebd64e8aa83d0924446c4ed576f5c8df249e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b220da3bdc3c1dbae4b20e24f9cbebd64e8aa83d0924446c4ed576f5c8df249e", kill_on_drop: false }`
[INFO] [stdout] b220da3bdc3c1dbae4b20e24f9cbebd64e8aa83d0924446c4ed576f5c8df249e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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=forbid -Dtail_expr_drop_order" "-e" "RUSTDOCFLAGS=--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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 01f16d6f386acb7f73be8e69080fe8f9e4bf0405f95bba92dd97e7f02e6783c3
[INFO] running `Command { std: "docker" "start" "-a" "01f16d6f386acb7f73be8e69080fe8f9e4bf0405f95bba92dd97e7f02e6783c3", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v2.0.79
[INFO] [stderr]     Checking serial-core v0.4.0
[INFO] [stderr]     Checking termios v0.2.2
[INFO] [stderr]     Checking ioctl-rs v0.1.6
[INFO] [stderr]     Checking serial-unix v0.4.0
[INFO] [stderr]     Checking serial v0.4.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.64
[INFO] [stderr]    Compiling derive_more v0.99.18
[INFO] [stderr]     Checking thiserror v1.0.64
[INFO] [stderr]     Checking flipdot-core v0.7.1
[INFO] [stderr]     Checking flipdot-serial v0.7.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.61s
[INFO] running `Command { std: "docker" "inspect" "01f16d6f386acb7f73be8e69080fe8f9e4bf0405f95bba92dd97e7f02e6783c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "01f16d6f386acb7f73be8e69080fe8f9e4bf0405f95bba92dd97e7f02e6783c3", kill_on_drop: false }`
[INFO] [stdout] 01f16d6f386acb7f73be8e69080fe8f9e4bf0405f95bba92dd97e7f02e6783c3