[INFO] fetching crate echodb 0.4.0...
[INFO] checking echodb-0.4.0 against master#158f00a1c5175648af6f6099b075f78d1d014a28 for pr-121251
[INFO] extracting crate echodb 0.4.0 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate echodb 0.4.0 on toolchain 158f00a1c5175648af6f6099b075f78d1d014a28
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+158f00a1c5175648af6f6099b075f78d1d014a28" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate echodb 0.4.0
[INFO] finished tweaking crates.io crate echodb 0.4.0
[INFO] tweaked toml for crates.io crate echodb 0.4.0 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+158f00a1c5175648af6f6099b075f78d1d014a28" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+158f00a1c5175648af6f6099b075f78d1d014a28" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded imbl-sized-chunks v0.1.2
[INFO] [stderr]   Downloaded imbl v2.0.3
[INFO] [stderr]   Downloaded bitmaps v3.2.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+158f00a1c5175648af6f6099b075f78d1d014a28" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c29ecfb84c04c092357b2be50b2a8e5d0250e11d5ccd96756502d7b93611c25d
[INFO] running `Command { std: "docker" "start" "-a" "c29ecfb84c04c092357b2be50b2a8e5d0250e11d5ccd96756502d7b93611c25d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c29ecfb84c04c092357b2be50b2a8e5d0250e11d5ccd96756502d7b93611c25d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c29ecfb84c04c092357b2be50b2a8e5d0250e11d5ccd96756502d7b93611c25d", kill_on_drop: false }`
[INFO] [stdout] c29ecfb84c04c092357b2be50b2a8e5d0250e11d5ccd96756502d7b93611c25d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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" "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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+158f00a1c5175648af6f6099b075f78d1d014a28" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4cf0b2409e91813e172ad7cf209b388dfae7742af0c100519811b17b88aeb4db
[INFO] running `Command { std: "docker" "start" "-a" "4cf0b2409e91813e172ad7cf209b388dfae7742af0c100519811b17b88aeb4db", kill_on_drop: false }`
[INFO] [stderr]     Checking bitmaps v3.2.1
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking arc-swap v1.7.0
[INFO] [stderr]    Compiling thiserror v1.0.57
[INFO] [stderr]    Compiling syn v2.0.52
[INFO] [stderr]     Checking rand_xoshiro v0.6.0
[INFO] [stderr]     Checking imbl-sized-chunks v0.1.2
[INFO] [stderr]     Checking imbl v2.0.3
[INFO] [stderr]    Compiling thiserror-impl v1.0.57
[INFO] [stderr]    Compiling tokio-macros v2.2.0
[INFO] [stderr]     Checking tokio v1.36.0
[INFO] [stderr]     Checking echodb v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]   --> src/tx.rs:68:4
[INFO] [stdout]    |
[INFO] [stdout] 68 |             drop(lk);
[INFO] [stdout]    |             ^^^^^--^
[INFO] [stdout]    |                  |
[INFO] [stdout]    |                  argument has type `&OwnedMutexGuard<()>`
[INFO] [stdout]    |
[INFO] [stdout]    = note: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]    = note: `#[warn(dropping_references)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]   --> src/tx.rs:89:4
[INFO] [stdout]    |
[INFO] [stdout] 89 |             drop(lk);
[INFO] [stdout]    |             ^^^^^--^
[INFO] [stdout]    |                  |
[INFO] [stdout]    |                  argument has type `&OwnedMutexGuard<()>`
[INFO] [stdout]    |
[INFO] [stdout]    = note: use `let _ = ...` to ignore the expression or result
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]   --> src/tx.rs:68:4
[INFO] [stdout]    |
[INFO] [stdout] 68 |             drop(lk);
[INFO] [stdout]    |             ^^^^^--^
[INFO] [stdout]    |                  |
[INFO] [stdout]    |                  argument has type `&OwnedMutexGuard<()>`
[INFO] [stdout]    |
[INFO] [stdout]    = note: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]    = note: `#[warn(dropping_references)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]   --> src/tx.rs:89:4
[INFO] [stdout]    |
[INFO] [stdout] 89 |             drop(lk);
[INFO] [stdout]    |             ^^^^^--^
[INFO] [stdout]    |                  |
[INFO] [stdout]    |                  argument has type `&OwnedMutexGuard<()>`
[INFO] [stdout]    |
[INFO] [stdout]    = note: use `let _ = ...` to ignore the expression or result
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.04s
[INFO] running `Command { std: "docker" "inspect" "4cf0b2409e91813e172ad7cf209b388dfae7742af0c100519811b17b88aeb4db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4cf0b2409e91813e172ad7cf209b388dfae7742af0c100519811b17b88aeb4db", kill_on_drop: false }`
[INFO] [stdout] 4cf0b2409e91813e172ad7cf209b388dfae7742af0c100519811b17b88aeb4db
[INFO] checking echodb-0.4.0 against try#b4fc5dbf0bc33be331f9d893db5b3a794f29724a+rustflags=-Dexplicit_range -Dtrait_impl_range -Wrange_syntax -Wrange_bounds for pr-121251
[INFO] extracting crate echodb 0.4.0 into /workspace/builds/worker-5-tc2/source
[INFO] validating manifest of crates.io crate echodb 0.4.0 on toolchain b4fc5dbf0bc33be331f9d893db5b3a794f29724a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b4fc5dbf0bc33be331f9d893db5b3a794f29724a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate echodb 0.4.0
[INFO] finished tweaking crates.io crate echodb 0.4.0
[INFO] tweaked toml for crates.io crate echodb 0.4.0 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b4fc5dbf0bc33be331f9d893db5b3a794f29724a" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b4fc5dbf0bc33be331f9d893db5b3a794f29724a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+b4fc5dbf0bc33be331f9d893db5b3a794f29724a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 203822793d0281eff72444bfe57a66e9ca7c8da5ce6a8ecf1db700712b6598f4
[INFO] running `Command { std: "docker" "start" "-a" "203822793d0281eff72444bfe57a66e9ca7c8da5ce6a8ecf1db700712b6598f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "203822793d0281eff72444bfe57a66e9ca7c8da5ce6a8ecf1db700712b6598f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "203822793d0281eff72444bfe57a66e9ca7c8da5ce6a8ecf1db700712b6598f4", kill_on_drop: false }`
[INFO] [stdout] 203822793d0281eff72444bfe57a66e9ca7c8da5ce6a8ecf1db700712b6598f4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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 -Dexplicit_range -Dtrait_impl_range -Wrange_syntax -Wrange_bounds" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+b4fc5dbf0bc33be331f9d893db5b3a794f29724a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b8af8689ab866ac081dc6955782663326029a6f1e47029cf0c9b6b3233f89b85
[INFO] running `Command { std: "docker" "start" "-a" "b8af8689ab866ac081dc6955782663326029a6f1e47029cf0c9b6b3233f89b85", kill_on_drop: false }`
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking bitmaps v3.2.1
[INFO] [stderr]     Checking arc-swap v1.7.0
[INFO] [stderr]    Compiling thiserror v1.0.57
[INFO] [stderr]    Compiling syn v2.0.52
[INFO] [stderr]     Checking rand_xoshiro v0.6.0
[INFO] [stderr]     Checking imbl-sized-chunks v0.1.2
[INFO] [stderr]     Checking imbl v2.0.3
[INFO] [stderr]    Compiling tokio-macros v2.2.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.57
[INFO] [stderr]     Checking tokio v1.36.0
[INFO] [stderr]     Checking echodb v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]   --> src/tx.rs:68:4
[INFO] [stdout]    |
[INFO] [stdout] 68 |             drop(lk);
[INFO] [stdout]    |             ^^^^^--^
[INFO] [stdout]    |                  |
[INFO] [stdout]    |                  argument has type `&OwnedMutexGuard<()>`
[INFO] [stdout]    |
[INFO] [stdout]    = note: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]    = note: `#[warn(dropping_references)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]   --> src/tx.rs:89:4
[INFO] [stdout]    |
[INFO] [stdout] 89 |             drop(lk);
[INFO] [stdout]    |             ^^^^^--^
[INFO] [stdout]    |                  |
[INFO] [stdout]    |                  argument has type `&OwnedMutexGuard<()>`
[INFO] [stdout]    |
[INFO] [stdout]    = note: use `let _ = ...` to ignore the expression or result
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: explicit usage of `Range` type in public function
[INFO] [stdout]    --> src/tx.rs:203:26
[INFO] [stdout]     |
[INFO] [stdout] 203 |     pub fn scan(&self, rng: Range<K>, limit: u32) -> Result<Vec<(K, V)>, Error> {
[INFO] [stdout]     |                             ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: requested on the command line with `-D explicit-range`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error; 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `echodb` (lib) due to 2 previous errors; 2 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]   --> src/tx.rs:68:4
[INFO] [stdout]    |
[INFO] [stdout] 68 |             drop(lk);
[INFO] [stdout]    |             ^^^^^--^
[INFO] [stdout]    |                  |
[INFO] [stdout]    |                  argument has type `&OwnedMutexGuard<()>`
[INFO] [stdout]    |
[INFO] [stdout]    = note: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]    = note: `#[warn(dropping_references)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]   --> src/tx.rs:89:4
[INFO] [stdout]    |
[INFO] [stdout] 89 |             drop(lk);
[INFO] [stdout]    |             ^^^^^--^
[INFO] [stdout]    |                  |
[INFO] [stdout]    |                  argument has type `&OwnedMutexGuard<()>`
[INFO] [stdout]    |
[INFO] [stdout]    = note: use `let _ = ...` to ignore the expression or result
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "b8af8689ab866ac081dc6955782663326029a6f1e47029cf0c9b6b3233f89b85", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b8af8689ab866ac081dc6955782663326029a6f1e47029cf0c9b6b3233f89b85", kill_on_drop: false }`
[INFO] [stdout] b8af8689ab866ac081dc6955782663326029a6f1e47029cf0c9b6b3233f89b85
