[INFO] fetching crate crossfire 1.0.1... [INFO] checking crossfire-1.0.1 against try#7014e13d5becc920d4bea3cd87942c8a13d359bf+rustflags=-Dtail_expr_drop_order for pr-129864 [INFO] extracting crate crossfire 1.0.1 into /workspace/builds/worker-6-tc2/source [INFO] validating manifest of crates.io crate crossfire 1.0.1 on toolchain 7014e13d5becc920d4bea3cd87942c8a13d359bf [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate crossfire 1.0.1 [INFO] finished tweaking crates.io crate crossfire 1.0.1 [INFO] tweaked toml for crates.io crate crossfire 1.0.1 written to /workspace/builds/worker-6-tc2/source/Cargo.toml [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 90 packages to latest compatible versions [INFO] [stderr] Adding atty v0.2.11 (available: v0.2.14) [INFO] [stderr] Adding bitflags v1.3.2 (available: v2.6.0) [INFO] [stderr] Adding getrandom v0.1.16 (available: v0.2.15) [INFO] [stderr] Adding lazy_static v0.2.11 (available: v1.5.0) [INFO] [stderr] Adding numtoa v0.1.0 (available: v0.2.4) [INFO] [stderr] Adding rand v0.7.3 (available: v0.8.5) [INFO] [stderr] Adding rand_chacha v0.2.2 (available: v0.3.1) [INFO] [stderr] Adding rand_core v0.5.1 (available: v0.6.4) [INFO] [stderr] Adding rand_hc v0.2.0 (available: v0.3.2) [INFO] [stderr] Adding redox_syscall v0.2.16 (available: v0.5.6) [INFO] [stderr] Adding stderrlog v0.4.3 (available: v0.6.0) [INFO] [stderr] Adding termion v1.5.6 (available: v4.0.2) [INFO] [stderr] Adding thread_local v0.3.4 (available: v0.3.6) [INFO] [stderr] Adding wasi v0.9.0+wasi-snapshot-preview1 (available: v0.13.2+wasi-0.2.1) [INFO] [stderr] Adding windows-core v0.52.0 (available: v0.58.0) [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 66a82f068a36f65a65374cfe1faf37eb03559e827aca592a82623e5f899437ad [INFO] running `Command { std: "docker" "start" "-a" "66a82f068a36f65a65374cfe1faf37eb03559e827aca592a82623e5f899437ad", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "66a82f068a36f65a65374cfe1faf37eb03559e827aca592a82623e5f899437ad", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "66a82f068a36f65a65374cfe1faf37eb03559e827aca592a82623e5f899437ad", kill_on_drop: false }` [INFO] [stdout] 66a82f068a36f65a65374cfe1faf37eb03559e827aca592a82623e5f899437ad [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] f7bd19ee4bd66bf3237e2a85edca61933a9825c53cc8b6f5f15693d92b2fa20a [INFO] running `Command { std: "docker" "start" "-a" "f7bd19ee4bd66bf3237e2a85edca61933a9825c53cc8b6f5f15693d92b2fa20a", kill_on_drop: false }` [INFO] [stderr] Checking futures-core v0.3.30 [INFO] [stderr] Checking futures-sink v0.3.30 [INFO] [stderr] Compiling syn v2.0.77 [INFO] [stderr] Checking crossbeam-epoch v0.9.18 [INFO] [stderr] Checking void v1.0.2 [INFO] [stderr] Checking crossbeam-channel v0.5.13 [INFO] [stderr] Checking crossbeam-queue v0.3.11 [INFO] [stderr] Checking lazy_static v0.2.11 [INFO] [stderr] Checking unreachable v1.0.0 [INFO] [stderr] Checking atty v0.2.11 [INFO] [stderr] Checking futures-channel v0.3.30 [INFO] [stderr] Checking tokio v1.40.0 [INFO] [stderr] Checking thread_local v0.3.4 [INFO] [stderr] Checking stderrlog v0.4.3 [INFO] [stderr] Checking crossbeam-deque v0.8.5 [INFO] [stderr] Checking crossbeam v0.8.4 [INFO] [stderr] Compiling zerocopy-derive v0.7.35 [INFO] [stderr] Compiling futures-macro v0.3.30 [INFO] [stderr] Compiling async-trait v0.1.83 [INFO] [stderr] Checking futures-util v0.3.30 [INFO] [stderr] Checking zerocopy v0.7.35 [INFO] [stderr] Checking ppv-lite86 v0.2.20 [INFO] [stderr] Checking rand_chacha v0.2.2 [INFO] [stderr] Checking rand v0.7.3 [INFO] [stderr] Checking futures-executor v0.3.30 [INFO] [stderr] Checking futures v0.3.30 [INFO] [stderr] Checking crossfire v1.0.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing [INFO] [stdout] --> src/channel/select.rs:93:9 [INFO] [stdout] | [INFO] [stdout] 93 | drop($rx); [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 241 | try_recv_poll!(_self, i, rx, ctx, wakers); [INFO] [stdout] | ----------------------------------------- [INFO] [stdout] | | | [INFO] [stdout] | | argument has type `&Box>` [INFO] [stdout] | in this macro invocation [INFO] [stdout] | [INFO] [stdout] = note: use `let _ = ...` to ignore the expression or result [INFO] [stdout] = note: `#[warn(dropping_references)]` on by default [INFO] [stdout] = note: this warning originates in the macro `try_recv_poll` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing [INFO] [stdout] --> src/channel/select.rs:93:9 [INFO] [stdout] | [INFO] [stdout] 93 | drop($rx); [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 257 | try_recv_poll!(_self, last_index, rx, ctx, wakers); [INFO] [stdout] | -------------------------------------------------- [INFO] [stdout] | | | [INFO] [stdout] | | argument has type `&Box>` [INFO] [stdout] | in this macro invocation [INFO] [stdout] | [INFO] [stdout] = note: use `let _ = ...` to ignore the expression or result [INFO] [stdout] = note: this warning originates in the macro `try_recv_poll` (in Nightly builds, run with -Z macro-backtrace for more info) [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/channel/select.rs:93:9 [INFO] [stdout] | [INFO] [stdout] 93 | drop($rx); [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 273 | try_recv_poll!(_self, i, rx, ctx, wakers); [INFO] [stdout] | ----------------------------------------- [INFO] [stdout] | | | [INFO] [stdout] | | argument has type `&Box>` [INFO] [stdout] | in this macro invocation [INFO] [stdout] | [INFO] [stdout] = note: use `let _ = ...` to ignore the expression or result [INFO] [stdout] = note: this warning originates in the macro `try_recv_poll` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing [INFO] [stdout] --> src/channel/select.rs:93:9 [INFO] [stdout] | [INFO] [stdout] 93 | drop($rx); [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 241 | try_recv_poll!(_self, i, rx, ctx, wakers); [INFO] [stdout] | ----------------------------------------- [INFO] [stdout] | | | [INFO] [stdout] | | argument has type `&Box>` [INFO] [stdout] | in this macro invocation [INFO] [stdout] | [INFO] [stdout] = note: use `let _ = ...` to ignore the expression or result [INFO] [stdout] = note: `#[warn(dropping_references)]` on by default [INFO] [stdout] = note: this warning originates in the macro `try_recv_poll` (in Nightly builds, run with -Z macro-backtrace for more info) [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/channel/select.rs:93:9 [INFO] [stdout] | [INFO] [stdout] 93 | drop($rx); [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 257 | try_recv_poll!(_self, last_index, rx, ctx, wakers); [INFO] [stdout] | -------------------------------------------------- [INFO] [stdout] | | | [INFO] [stdout] | | argument has type `&Box>` [INFO] [stdout] | in this macro invocation [INFO] [stdout] | [INFO] [stdout] = note: use `let _ = ...` to ignore the expression or result [INFO] [stdout] = note: this warning originates in the macro `try_recv_poll` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing [INFO] [stdout] --> src/channel/select.rs:93:9 [INFO] [stdout] | [INFO] [stdout] 93 | drop($rx); [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 273 | try_recv_poll!(_self, i, rx, ctx, wakers); [INFO] [stdout] | ----------------------------------------- [INFO] [stdout] | | | [INFO] [stdout] | | argument has type `&Box>` [INFO] [stdout] | in this macro invocation [INFO] [stdout] | [INFO] [stdout] = note: use `let _ = ...` to ignore the expression or result [INFO] [stdout] = note: this warning originates in the macro `try_recv_poll` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/mpmc/bounded.rs:395:21 [INFO] [stdout] | [INFO] [stdout] 395 | tx_done1.send(()).await; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 395 | let _ = tx_done1.send(()).await; [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/mpmc/bounded.rs:402:21 [INFO] [stdout] | [INFO] [stdout] 402 | tx_done2.send(()).await; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 402 | let _ = tx_done2.send(()).await; [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 14.23s [INFO] running `Command { std: "docker" "inspect" "f7bd19ee4bd66bf3237e2a85edca61933a9825c53cc8b6f5f15693d92b2fa20a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f7bd19ee4bd66bf3237e2a85edca61933a9825c53cc8b6f5f15693d92b2fa20a", kill_on_drop: false }` [INFO] [stdout] f7bd19ee4bd66bf3237e2a85edca61933a9825c53cc8b6f5f15693d92b2fa20a