[INFO] fetching crate lockfreehashmap 0.1.2... [INFO] checking lockfreehashmap-0.1.2 against try#c387b04bf028733cd561d62128c8a5eee4bc1458+rustflags=-Dtail_expr_drop_order for pr-130930 [INFO] extracting crate lockfreehashmap 0.1.2 into /workspace/builds/worker-4-tc2/source [INFO] validating manifest of crates.io crate lockfreehashmap 0.1.2 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 lockfreehashmap 0.1.2 [INFO] finished tweaking crates.io crate lockfreehashmap 0.1.2 [INFO] tweaked toml for crates.io crate lockfreehashmap 0.1.2 written to /workspace/builds/worker-4-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] Locking 17 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 crossbeam-epoch v0.4.3 (available: v0.9.18) [INFO] [stderr] Adding crossbeam-utils v0.3.2 (available: v0.8.20) [INFO] [stderr] Adding memoffset v0.2.1 (available: v0.9.1) [INFO] [stderr] Adding rand v0.4.6 (available: v0.8.5) [INFO] [stderr] Adding rand_core v0.3.1 (available: v0.6.4) [INFO] [stderr] Adding rand_core v0.4.2 (available: v0.6.4) [INFO] [stderr] Adding rdrand v0.4.0 (available: v0.8.3) [INFO] [stderr] Adding scopeguard v0.3.3 (available: v1.2.0) [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] warning: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 2c494031ca29f2cb206368cfb38d0a35a8540bd676ce4de2e25bad29e5438706 [INFO] running `Command { std: "docker" "start" "-a" "2c494031ca29f2cb206368cfb38d0a35a8540bd676ce4de2e25bad29e5438706", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "2c494031ca29f2cb206368cfb38d0a35a8540bd676ce4de2e25bad29e5438706", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "2c494031ca29f2cb206368cfb38d0a35a8540bd676ce4de2e25bad29e5438706", kill_on_drop: false }` [INFO] [stdout] 2c494031ca29f2cb206368cfb38d0a35a8540bd676ce4de2e25bad29e5438706 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] e4647f6b5309193aac6ca8df7550904e6ce07715ef6687ab480376a0fa05df2d [INFO] running `Command { std: "docker" "start" "-a" "e4647f6b5309193aac6ca8df7550904e6ce07715ef6687ab480376a0fa05df2d", kill_on_drop: false }` [INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] Compiling arrayvec v0.4.12 [INFO] [stderr] Checking nodrop v0.1.14 [INFO] [stderr] Checking memoffset v0.2.1 [INFO] [stderr] Checking scopeguard v0.3.3 [INFO] [stderr] Checking crossbeam-utils v0.3.2 [INFO] [stderr] Checking crossbeam-epoch v0.4.3 [INFO] [stderr] Checking lockfreehashmap v0.1.2 (/opt/rustwide/workdir) [INFO] [stdout] warning: elided lifetime has a name [INFO] [stdout] --> src/atomic.rs:286:59 [INFO] [stdout] | [INFO] [stdout] 280 | pub fn compare_and_set_shared<'g>( [INFO] [stdout] | -- lifetime `'g` declared here [INFO] [stdout] ... [INFO] [stdout] 286 | -> Result, (NotNull<'g, T>, NotNull)> [INFO] [stdout] | ^ this elided lifetime gets resolved as `'g` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(elided_named_lifetimes)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: elided lifetime has a name [INFO] [stdout] --> src/map_inner.rs:945:34 [INFO] [stdout] | [INFO] [stdout] 417 | impl<'guard, 'v: 'guard, K, V, S> MapInner<'v, K,V,S> [INFO] [stdout] | ------ lifetime `'guard` declared here [INFO] [stdout] ... [INFO] [stdout] 945 | ) -> Option<&'guard ValueSlot> [INFO] [stdout] | ^ this elided lifetime gets resolved as `'guard` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: elided lifetime has a name [INFO] [stdout] --> src/map_inner.rs:994:34 [INFO] [stdout] | [INFO] [stdout] 417 | impl<'guard, 'v: 'guard, K, V, S> MapInner<'v, K,V,S> [INFO] [stdout] | ------ lifetime `'guard` declared here [INFO] [stdout] ... [INFO] [stdout] 994 | ) -> Option<&'guard ValueSlot> [INFO] [stdout] | ^ this elided lifetime gets resolved as `'guard` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: elided lifetime has a name [INFO] [stdout] --> src/atomic.rs:286:59 [INFO] [stdout] | [INFO] [stdout] 280 | pub fn compare_and_set_shared<'g>( [INFO] [stdout] | -- lifetime `'g` declared here [INFO] [stdout] ... [INFO] [stdout] 286 | -> Result, (NotNull<'g, T>, NotNull)> [INFO] [stdout] | ^ this elided lifetime gets resolved as `'g` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(elided_named_lifetimes)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: elided lifetime has a name [INFO] [stdout] --> src/map_inner.rs:945:34 [INFO] [stdout] | [INFO] [stdout] 417 | impl<'guard, 'v: 'guard, K, V, S> MapInner<'v, K,V,S> [INFO] [stdout] | ------ lifetime `'guard` declared here [INFO] [stdout] ... [INFO] [stdout] 945 | ) -> Option<&'guard ValueSlot> [INFO] [stdout] | ^ this elided lifetime gets resolved as `'guard` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: elided lifetime has a name [INFO] [stdout] --> src/map_inner.rs:994:34 [INFO] [stdout] | [INFO] [stdout] 417 | impl<'guard, 'v: 'guard, K, V, S> MapInner<'v, K,V,S> [INFO] [stdout] | ------ lifetime `'guard` declared here [INFO] [stdout] ... [INFO] [stdout] 994 | ) -> Option<&'guard ValueSlot> [INFO] [stdout] | ^ this elided lifetime gets resolved as `'guard` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 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/lib.rs:408:8 [INFO] [stdout] | [INFO] [stdout] 408 | drop(map); [INFO] [stdout] | ^^^^^---^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `&LockFreeHashMap<'_, u32, Vec>` [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] 408 - drop(map); [INFO] [stdout] 408 + let _ = map; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.25s [INFO] running `Command { std: "docker" "inspect" "e4647f6b5309193aac6ca8df7550904e6ce07715ef6687ab480376a0fa05df2d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e4647f6b5309193aac6ca8df7550904e6ce07715ef6687ab480376a0fa05df2d", kill_on_drop: false }` [INFO] [stdout] e4647f6b5309193aac6ca8df7550904e6ce07715ef6687ab480376a0fa05df2d