[INFO] fetching crate bronzedb-memory-db-server 0.1.0...
[INFO] checking bronzedb-memory-db-server-0.1.0 against try#c387b04bf028733cd561d62128c8a5eee4bc1458+rustflags=-Dtail_expr_drop_order for pr-130930
[INFO] extracting crate bronzedb-memory-db-server 0.1.0 into /workspace/builds/worker-7-tc2/source
[INFO] validating manifest of crates.io crate bronzedb-memory-db-server 0.1.0 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 bronzedb-memory-db-server 0.1.0
[INFO] finished tweaking crates.io crate bronzedb-memory-db-server 0.1.0
[INFO] tweaked toml for crates.io crate bronzedb-memory-db-server 0.1.0 written to /workspace/builds/worker-7-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]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 82 packages to latest compatible versions
[INFO] [stderr]       Adding arrayvec v0.4.12 (available: v0.7.6)
[INFO] [stderr]       Adding cfg-if v0.1.10 (available: v1.0.0)
[INFO] [stderr]       Adding config v0.9.3 (available: v0.14.0)
[INFO] [stderr]       Adding crossbeam-epoch v0.7.2 (available: v0.9.18)
[INFO] [stderr]       Adding crossbeam-utils v0.6.6 (available: v0.8.20)
[INFO] [stderr]       Adding env_logger v0.6.2 (available: v0.11.5)
[INFO] [stderr]       Adding futures v0.1.31 (available: v0.3.30)
[INFO] [stderr]       Adding hashbrown v0.2.2 (available: v0.14.5)
[INFO] [stderr]       Adding hermit-abi v0.1.19 (available: v0.4.0)
[INFO] [stderr]       Adding humantime v1.3.0 (available: v2.1.0)
[INFO] [stderr]       Adding lazy_static v0.2.11 (available: v1.5.0)
[INFO] [stderr]       Adding linked-hash-map v0.3.0 (available: v0.5.6)
[INFO] [stderr]       Adding memoffset v0.5.6 (available: v0.9.1)
[INFO] [stderr]       Adding nom v4.2.3 (available: v7.1.3)
[INFO] [stderr]       Adding num-traits v0.1.43 (available: v0.2.19)
[INFO] [stderr]       Adding pagecache v0.15.0 (available: v0.19.4)
[INFO] [stderr]       Adding quick-error v1.2.3 (available: v2.0.1)
[INFO] [stderr]       Adding rust-ini v0.13.0 (available: v0.21.1)
[INFO] [stderr]       Adding serde v0.8.23 (available: v1.0.210)
[INFO] [stderr]       Adding serde-hjson v0.8.2 (available: v1.1.0)
[INFO] [stderr]       Adding serde_bytes v0.10.5 (available: v0.11.15)
[INFO] [stderr]       Adding serde_test v0.8.23 (available: v1.0.177)
[INFO] [stderr]       Adding sled v0.22.1 (available: v0.34.7)
[INFO] [stderr]       Adding toml v0.4.10 (available: v0.8.19)
[INFO] [stderr]       Adding version_check v0.1.5 (available: v0.9.5)
[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-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 689164e79e5db068b30f8bbe91143994eeae8b3b0d6a0e93eb9faaecb7e83120
[INFO] running `Command { std: "docker" "start" "-a" "689164e79e5db068b30f8bbe91143994eeae8b3b0d6a0e93eb9faaecb7e83120", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "689164e79e5db068b30f8bbe91143994eeae8b3b0d6a0e93eb9faaecb7e83120", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "689164e79e5db068b30f8bbe91143994eeae8b3b0d6a0e93eb9faaecb7e83120", kill_on_drop: false }`
[INFO] [stdout] 689164e79e5db068b30f8bbe91143994eeae8b3b0d6a0e93eb9faaecb7e83120
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 416af1313eeb58d43a9e3e2a32c0e65f38730e8c10d8d7d0b813210dde76ba3c
[INFO] running `Command { std: "docker" "start" "-a" "416af1313eeb58d43a9e3e2a32c0e65f38730e8c10d8d7d0b813210dde76ba3c", kill_on_drop: false }`
[INFO] [stderr]     Checking memchr v2.7.4
[INFO] [stderr]    Compiling arrayvec v0.4.12
[INFO] [stderr]     Checking matches v0.1.10
[INFO] [stderr]    Compiling proc-macro2 v1.0.86
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling memoffset v0.5.6
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]     Checking nodrop v0.1.14
[INFO] [stderr]     Checking serde v0.8.23
[INFO] [stderr]     Checking fxhash v0.2.1
[INFO] [stderr]     Checking fs2 v0.4.3
[INFO] [stderr]     Checking lazy_static v0.2.11
[INFO] [stderr]     Checking quick-error v1.2.3
[INFO] [stderr]     Checking rayon v1.10.0
[INFO] [stderr]     Checking futures v0.1.31
[INFO] [stderr]     Checking bronzedb-util v0.1.0
[INFO] [stderr]     Checking crossbeam-utils v0.6.6
[INFO] [stderr]     Checking historian v4.0.4
[INFO] [stderr]     Checking yaml-rust v0.4.5
[INFO] [stderr]     Checking humantime v1.3.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking bronzedb-protocol v0.1.0
[INFO] [stderr]     Checking bronzedb-engine v0.1.0
[INFO] [stderr]     Checking rust-ini v0.13.0
[INFO] [stderr]     Checking bronzedb-server v0.1.0
[INFO] [stderr]    Compiling nom v4.2.3
[INFO] [stderr]     Checking aho-corasick v1.1.3
[INFO] [stderr]    Compiling quote v1.0.37
[INFO] [stderr]     Checking crossbeam-epoch v0.7.2
[INFO] [stderr]    Compiling syn v2.0.79
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]     Checking regex-automata v0.4.7
[INFO] [stderr]     Checking serde_test v0.8.23
[INFO] [stderr]     Checking linked-hash-map v0.3.0
[INFO] [stderr]    Compiling serde_derive v1.0.210
[INFO] [stderr]     Checking regex v1.10.6
[INFO] [stderr]     Checking serde-hjson v0.8.2
[INFO] [stderr]     Checking env_logger v0.6.2
[INFO] [stderr]     Checking serde v1.0.210
[INFO] [stderr]     Checking bincode v1.3.3
[INFO] [stderr]     Checking hashbrown v0.2.2
[INFO] [stderr]     Checking serde_json v1.0.128
[INFO] [stderr]     Checking toml v0.4.10
[INFO] [stderr]     Checking serde_bytes v0.10.5
[INFO] [stderr]     Checking pagecache v0.15.0
[INFO] [stderr]     Checking config v0.9.3
[INFO] [stderr]     Checking sled v0.22.1
[INFO] [stderr]     Checking bronzedb-memory-db-server v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/engine_impl.rs:99:31
[INFO] [stdout]    |
[INFO] [stdout] 99 |     fn iter(&mut self) -> Box<Iterator<Item = Result<Entry, Error>> + '_> {
[INFO] [stdout]    |                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 99 |     fn iter(&mut self) -> Box<dyn Iterator<Item = Result<Entry, Error>> + '_> {
[INFO] [stdout]    |                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/engine_impl.rs:99:31
[INFO] [stdout]    |
[INFO] [stdout] 99 |     fn iter(&mut self) -> Box<Iterator<Item = Result<Entry, Error>> + '_> {
[INFO] [stdout]    |                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 99 |     fn iter(&mut self) -> Box<dyn Iterator<Item = Result<Entry, Error>> + '_> {
[INFO] [stdout]    |                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.50s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: nom v4.2.3
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "416af1313eeb58d43a9e3e2a32c0e65f38730e8c10d8d7d0b813210dde76ba3c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "416af1313eeb58d43a9e3e2a32c0e65f38730e8c10d8d7d0b813210dde76ba3c", kill_on_drop: false }`
[INFO] [stdout] 416af1313eeb58d43a9e3e2a32c0e65f38730e8c10d8d7d0b813210dde76ba3c