[INFO] fetching crate updb 0.1.0... [INFO] checking updb-0.1.0 against try#998b6603a58e47f42ccce7a67943234e96b6839e for pr-143170 [INFO] extracting crate updb 0.1.0 into /workspace/builds/worker-2-tc2/source [INFO] started tweaking crates.io crate updb 0.1.0 [INFO] finished tweaking crates.io crate updb 0.1.0 [INFO] tweaked toml for crates.io crate updb 0.1.0 written to /workspace/builds/worker-2-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate updb 0.1.0 on toolchain 998b6603a58e47f42ccce7a67943234e96b6839e [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "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] Locking 35 packages to latest compatible versions [INFO] [stderr] Adding imbl v2.0.3 (available: v5.0.0) [INFO] [stderr] Adding thiserror v1.0.69 (available: v2.0.12) [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "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-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 54dcd213d47539fb375a23022efc21ae14e532222a574c3b877a138034332ba5 [INFO] running `Command { std: "docker" "start" "-a" "54dcd213d47539fb375a23022efc21ae14e532222a574c3b877a138034332ba5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "54dcd213d47539fb375a23022efc21ae14e532222a574c3b877a138034332ba5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "54dcd213d47539fb375a23022efc21ae14e532222a574c3b877a138034332ba5", kill_on_drop: false }` [INFO] [stdout] 54dcd213d47539fb375a23022efc21ae14e532222a574c3b877a138034332ba5 [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" "-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 42b8a3d518390fc44570661bb5cd7a169d37ab6dec7e49ca39ad84911a01fcf1 [INFO] running `Command { std: "docker" "start" "-a" "42b8a3d518390fc44570661bb5cd7a169d37ab6dec7e49ca39ad84911a01fcf1", kill_on_drop: false }` [INFO] [stderr] Compiling unicode-ident v1.0.18 [INFO] [stderr] Checking bitmaps v3.2.1 [INFO] [stderr] Checking rand_core v0.6.4 [INFO] [stderr] Compiling thiserror v1.0.69 [INFO] [stderr] Checking pin-project-lite v0.2.16 [INFO] [stderr] Checking arc-swap v1.7.1 [INFO] [stderr] Compiling proc-macro2 v1.0.95 [INFO] [stderr] Checking rand_xoshiro v0.6.0 [INFO] [stderr] Compiling quote v1.0.40 [INFO] [stderr] Compiling syn v2.0.104 [INFO] [stderr] Checking imbl-sized-chunks v0.1.3 [INFO] [stderr] Checking imbl v2.0.3 [INFO] [stderr] Compiling thiserror-impl v1.0.69 [INFO] [stderr] Compiling tokio-macros v2.5.0 [INFO] [stderr] Checking tokio v1.45.1 [INFO] [stderr] Checking updb v0.1.0 (/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/mod.rs:50:13 [INFO] [stdout] | [INFO] [stdout] 50 | drop(lock); [INFO] [stdout] | ^^^^^----^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `&OwnedMutexGuard<()>` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dropping_references)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the expression or result [INFO] [stdout] | [INFO] [stdout] 50 - drop(lock); [INFO] [stdout] 50 + let _ = lock; [INFO] [stdout] | [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/mod.rs:70:13 [INFO] [stdout] | [INFO] [stdout] 70 | drop(lock); [INFO] [stdout] | ^^^^^----^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `&OwnedMutexGuard<()>` [INFO] [stdout] | [INFO] [stdout] help: use `let _ = ...` to ignore the expression or result [INFO] [stdout] | [INFO] [stdout] 70 - drop(lock); [INFO] [stdout] 70 + let _ = lock; [INFO] [stdout] | [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/mod.rs:50:13 [INFO] [stdout] | [INFO] [stdout] 50 | drop(lock); [INFO] [stdout] | ^^^^^----^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `&OwnedMutexGuard<()>` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dropping_references)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the expression or result [INFO] [stdout] | [INFO] [stdout] 50 - drop(lock); [INFO] [stdout] 50 + let _ = lock; [INFO] [stdout] | [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/mod.rs:70:13 [INFO] [stdout] | [INFO] [stdout] 70 | drop(lock); [INFO] [stdout] | ^^^^^----^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `&OwnedMutexGuard<()>` [INFO] [stdout] | [INFO] [stdout] help: use `let _ = ...` to ignore the expression or result [INFO] [stdout] | [INFO] [stdout] 70 - drop(lock); [INFO] [stdout] 70 + let _ = lock; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.89s [INFO] running `Command { std: "docker" "inspect" "42b8a3d518390fc44570661bb5cd7a169d37ab6dec7e49ca39ad84911a01fcf1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "42b8a3d518390fc44570661bb5cd7a169d37ab6dec7e49ca39ad84911a01fcf1", kill_on_drop: false }` [INFO] [stdout] 42b8a3d518390fc44570661bb5cd7a169d37ab6dec7e49ca39ad84911a01fcf1