[INFO] cloning repository https://github.com/unacowa/vecmap [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/unacowa/vecmap" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Funacowa%2Fvecmap", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Funacowa%2Fvecmap'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 4ae3222c7f40e779c5bae3f970161eea5ab68d75 [INFO] building unacowa/vecmap against master#11663cd3bfefef7d34e8f0892c250bf698049392+rustflags=-Dtail-expr-drop-order for pr-134523 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Funacowa%2Fvecmap" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/unacowa/vecmap on toolchain 11663cd3bfefef7d34e8f0892c250bf698049392 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/unacowa/vecmap [INFO] finished tweaking git repo https://github.com/unacowa/vecmap [INFO] tweaked toml for git repo https://github.com/unacowa/vecmap written to /workspace/builds/worker-3-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/unacowa/vecmap 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" "+11663cd3bfefef7d34e8f0892c250bf698049392" "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-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] f0db51328c5fe4604d4a90145e5cddbf647d5d7ca55e19e86327f4d7efaff4e1 [INFO] running `Command { std: "docker" "start" "-a" "f0db51328c5fe4604d4a90145e5cddbf647d5d7ca55e19e86327f4d7efaff4e1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "f0db51328c5fe4604d4a90145e5cddbf647d5d7ca55e19e86327f4d7efaff4e1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f0db51328c5fe4604d4a90145e5cddbf647d5d7ca55e19e86327f4d7efaff4e1", kill_on_drop: false }` [INFO] [stdout] f0db51328c5fe4604d4a90145e5cddbf647d5d7ca55e19e86327f4d7efaff4e1 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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 -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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 58fbdc9808937b0678290e7f1f4820677d01a18f070f8da8e3382ec24ef0a39a [INFO] running `Command { std: "docker" "start" "-a" "58fbdc9808937b0678290e7f1f4820677d01a18f070f8da8e3382ec24ef0a39a", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.126 [INFO] [stderr] Compiling lock_api v0.4.7 [INFO] [stderr] Compiling parking_lot_core v0.9.3 [INFO] [stderr] Compiling smallvec v1.9.0 [INFO] [stderr] Compiling parking_lot v0.12.1 [INFO] [stderr] Compiling vecmap 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/lib.rs:196:2 [INFO] [stdout] | [INFO] [stdout] 196 | drop(&mut self.guard); [INFO] [stdout] | ^^^^^---------------^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `&mut parking_lot::lock_api::RwLockReadGuard<'_, parking_lot::RawRwLock, usize>` [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] 196 - drop(&mut self.guard); [INFO] [stdout] 196 + let _ = &mut self.guard; [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/lib.rs:222:2 [INFO] [stdout] | [INFO] [stdout] 222 | drop(&mut self.guard); [INFO] [stdout] | ^^^^^---------------^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `&mut parking_lot::lock_api::RwLockWriteGuard<'_, parking_lot::RawRwLock, usize>` [INFO] [stdout] | [INFO] [stdout] help: use `let _ = ...` to ignore the expression or result [INFO] [stdout] | [INFO] [stdout] 222 - drop(&mut self.guard); [INFO] [stdout] 222 + let _ = &mut self.guard; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.21s [INFO] running `Command { std: "docker" "inspect" "58fbdc9808937b0678290e7f1f4820677d01a18f070f8da8e3382ec24ef0a39a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "58fbdc9808937b0678290e7f1f4820677d01a18f070f8da8e3382ec24ef0a39a", kill_on_drop: false }` [INFO] [stdout] 58fbdc9808937b0678290e7f1f4820677d01a18f070f8da8e3382ec24ef0a39a [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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 -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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 60a26145026b5d9777b0c2d1d244917a4ba1e1986b767e8b14ea5ac784104ba8 [INFO] running `Command { std: "docker" "start" "-a" "60a26145026b5d9777b0c2d1d244917a4ba1e1986b767e8b14ea5ac784104ba8", kill_on_drop: false }` [INFO] [stderr] Compiling crossbeam-utils v0.8.10 [INFO] [stderr] Compiling memoffset v0.6.5 [INFO] [stderr] Compiling once_cell v1.13.0 [INFO] [stderr] Compiling crossbeam-epoch v0.9.9 [INFO] [stderr] Compiling rayon-core v1.9.3 [INFO] [stderr] Compiling getrandom v0.2.7 [INFO] [stderr] Compiling num_cpus v1.13.1 [INFO] [stderr] Compiling rayon v1.5.3 [INFO] [stderr] Compiling either v1.7.0 [INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing [INFO] [stdout] --> src/lib.rs:196:2 [INFO] [stdout] | [INFO] [stdout] 196 | drop(&mut self.guard); [INFO] [stdout] | ^^^^^---------------^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `&mut parking_lot::lock_api::RwLockReadGuard<'_, parking_lot::RawRwLock, usize>` [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] 196 - drop(&mut self.guard); [INFO] [stdout] 196 + let _ = &mut self.guard; [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/lib.rs:222:2 [INFO] [stdout] | [INFO] [stdout] 222 | drop(&mut self.guard); [INFO] [stdout] | ^^^^^---------------^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `&mut parking_lot::lock_api::RwLockWriteGuard<'_, parking_lot::RawRwLock, usize>` [INFO] [stdout] | [INFO] [stdout] help: use `let _ = ...` to ignore the expression or result [INFO] [stdout] | [INFO] [stdout] 222 - drop(&mut self.guard); [INFO] [stdout] 222 + let _ = &mut self.guard; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling rand_core v0.6.3 [INFO] [stderr] Compiling rand_chacha v0.3.1 [INFO] [stderr] Compiling crossbeam-channel v0.5.5 [INFO] [stderr] Compiling rand v0.8.5 [INFO] [stderr] Compiling crossbeam-deque v0.8.1 [INFO] [stderr] Compiling vecmap 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/lib.rs:196:2 [INFO] [stdout] | [INFO] [stdout] 196 | drop(&mut self.guard); [INFO] [stdout] | ^^^^^---------------^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `&mut parking_lot::lock_api::RwLockReadGuard<'_, parking_lot::RawRwLock, usize>` [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] 196 - drop(&mut self.guard); [INFO] [stdout] 196 + let _ = &mut self.guard; [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/lib.rs:222:2 [INFO] [stdout] | [INFO] [stdout] 222 | drop(&mut self.guard); [INFO] [stdout] | ^^^^^---------------^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `&mut parking_lot::lock_api::RwLockWriteGuard<'_, parking_lot::RawRwLock, usize>` [INFO] [stdout] | [INFO] [stdout] help: use `let _ = ...` to ignore the expression or result [INFO] [stdout] | [INFO] [stdout] 222 - drop(&mut self.guard); [INFO] [stdout] 222 + let _ = &mut self.guard; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 8.41s [INFO] running `Command { std: "docker" "inspect" "60a26145026b5d9777b0c2d1d244917a4ba1e1986b767e8b14ea5ac784104ba8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "60a26145026b5d9777b0c2d1d244917a4ba1e1986b767e8b14ea5ac784104ba8", kill_on_drop: false }` [INFO] [stdout] 60a26145026b5d9777b0c2d1d244917a4ba1e1986b767e8b14ea5ac784104ba8