[INFO] cloning repository https://github.com/HarumiKiyama/kvs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/HarumiKiyama/kvs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHarumiKiyama%2Fkvs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHarumiKiyama%2Fkvs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] cd759889b74619468293c163acc2a12bc43cd1cb
[INFO] checking HarumiKiyama/kvs/cd759889b74619468293c163acc2a12bc43cd1cb against try#c387b04bf028733cd561d62128c8a5eee4bc1458+rustflags=-Dtail_expr_drop_order for pr-130930
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHarumiKiyama%2Fkvs" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/HarumiKiyama/kvs 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 git repo https://github.com/HarumiKiyama/kvs
[INFO] finished tweaking git repo https://github.com/HarumiKiyama/kvs
[INFO] tweaked toml for git repo https://github.com/HarumiKiyama/kvs written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/HarumiKiyama/kvs already has a lockfile, it will not be regenerated
[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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 2f9cac660fece92aabd6af752db3624ad12d07cbadf08fed5653c3bc904fa9d9
[INFO] running `Command { std: "docker" "start" "-a" "2f9cac660fece92aabd6af752db3624ad12d07cbadf08fed5653c3bc904fa9d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2f9cac660fece92aabd6af752db3624ad12d07cbadf08fed5653c3bc904fa9d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2f9cac660fece92aabd6af752db3624ad12d07cbadf08fed5653c3bc904fa9d9", kill_on_drop: false }`
[INFO] [stdout] 2f9cac660fece92aabd6af752db3624ad12d07cbadf08fed5653c3bc904fa9d9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 49bc9c5c7b1b14ee6cec7ca051cb06544c0a60951c87724256f5e02d5e794f39
[INFO] running `Command { std: "docker" "start" "-a" "49bc9c5c7b1b14ee6cec7ca051cb06544c0a60951c87724256f5e02d5e794f39", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.40
[INFO] [stderr]    Compiling unicode-ident v1.0.1
[INFO] [stderr]    Compiling quote v1.0.20
[INFO] [stderr]    Compiling syn v1.0.98
[INFO] [stderr]    Compiling crossbeam-utils v0.8.11
[INFO] [stderr]    Compiling serde_derive v1.0.137
[INFO] [stderr]    Compiling serde v1.0.137
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.9
[INFO] [stderr]    Compiling serde_json v1.0.82
[INFO] [stderr]    Compiling rayon-core v1.9.3
[INFO] [stderr]     Checking regex-syntax v0.6.26
[INFO] [stderr]    Compiling semver v1.0.12
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]     Checking either v1.7.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]    Compiling rayon v1.5.3
[INFO] [stderr]    Compiling crossbeam-queue v0.3.6
[INFO] [stderr]     Checking smallvec v1.9.0
[INFO] [stderr]     Checking os_str_bytes v6.1.0
[INFO] [stderr]     Checking fxhash v0.2.1
[INFO] [stderr]     Checking fs2 v0.4.3
[INFO] [stderr]     Checking textwrap v0.15.0
[INFO] [stderr]     Checking strsim v0.10.0
[INFO] [stderr]     Checking parking_lot_core v0.8.5
[INFO] [stderr]     Checking getrandom v0.2.7
[INFO] [stderr]     Checking regex-automata v0.1.10
[INFO] [stderr]     Checking predicates-core v1.0.3
[INFO] [stderr]     Checking plotters-backend v0.3.4
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking itertools v0.10.3
[INFO] [stderr]     Checking clap_lex v0.2.4
[INFO] [stderr]     Checking csv-core v0.1.10
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking termtree v0.2.4
[INFO] [stderr]     Checking half v1.8.2
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]     Checking crossbeam-channel v0.5.6
[INFO] [stderr]    Compiling rustc_version v0.4.0
[INFO] [stderr]     Checking parking_lot v0.11.2
[INFO] [stderr]     Checking plotters-svg v0.3.2
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking predicates-tree v1.0.5
[INFO] [stderr]     Checking remove_dir_all v0.5.3
[INFO] [stderr]     Checking oorandom v11.1.3
[INFO] [stderr]     Checking fastrand v1.7.0
[INFO] [stderr]     Checking crossbeam-deque v0.8.1
[INFO] [stderr]     Checking cast v0.3.0
[INFO] [stderr]     Checking panic-control v0.1.4
[INFO] [stderr]     Checking sled v0.34.7
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking tempfile v3.3.0
[INFO] [stderr]    Compiling cast v0.2.7
[INFO] [stderr]     Checking crossbeam v0.8.2
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]     Checking float-cmp v0.8.0
[INFO] [stderr]     Checking plotters v0.3.2
[INFO] [stderr]     Checking criterion-plot v0.4.4
[INFO] [stderr]     Checking regex v1.5.6
[INFO] [stderr]     Checking env_logger v0.9.0
[INFO] [stderr]     Checking predicates v1.0.8
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling clap_derive v3.2.7
[INFO] [stderr]    Compiling thiserror-impl v1.0.31
[INFO] [stderr]     Checking thiserror v1.0.31
[INFO] [stderr]     Checking clap v3.2.7
[INFO] [stderr]     Checking bstr v0.2.17
[INFO] [stderr]     Checking serde_cbor v0.11.2
[INFO] [stderr]     Checking csv v1.1.6
[INFO] [stderr]     Checking escargot v0.4.0
[INFO] [stderr]     Checking kvs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking tinytemplate v1.2.1
[INFO] [stderr]     Checking criterion v0.3.6
[INFO] [stderr]     Checking assert_cmd v0.11.1
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> benches/engine_bench.rs:14:15
[INFO] [stdout]    |
[INFO] [stdout] 14 |             |(mut store, _temp_dir)| {
[INFO] [stdout]    |               ----^^^^^
[INFO] [stdout]    |               |
[INFO] [stdout]    |               help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> benches/engine_bench.rs:28:15
[INFO] [stdout]    |
[INFO] [stdout] 28 |             |(mut db, _temp_dir)| {
[INFO] [stdout]    |               ----^^
[INFO] [stdout]    |               |
[INFO] [stdout]    |               help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> benches/engine_bench.rs:44:17
[INFO] [stdout]    |
[INFO] [stdout] 44 |             let mut store = KvStore::open(temp_dir.path()).unwrap();
[INFO] [stdout]    |                 ----^^^^^
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> benches/engine_bench.rs:61:17
[INFO] [stdout]    |
[INFO] [stdout] 61 |             let mut db = SledKvsEngine::open(temp_dir.path()).unwrap();
[INFO] [stdout]    |                 ----^^
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 22.08s
[INFO] running `Command { std: "docker" "inspect" "49bc9c5c7b1b14ee6cec7ca051cb06544c0a60951c87724256f5e02d5e794f39", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "49bc9c5c7b1b14ee6cec7ca051cb06544c0a60951c87724256f5e02d5e794f39", kill_on_drop: false }`
[INFO] [stdout] 49bc9c5c7b1b14ee6cec7ca051cb06544c0a60951c87724256f5e02d5e794f39