[INFO] fetching crate peril 0.4.2... [INFO] checking peril-0.4.2 against try#7014e13d5becc920d4bea3cd87942c8a13d359bf+rustflags=-Dtail_expr_drop_order for pr-129864 [INFO] extracting crate peril 0.4.2 into /workspace/builds/worker-6-tc2/source [INFO] validating manifest of crates.io crate peril 0.4.2 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 peril 0.4.2 [INFO] finished tweaking crates.io crate peril 0.4.2 [INFO] tweaked toml for crates.io crate peril 0.4.2 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 5 packages to latest compatible versions [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] 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] 1e7a8830064951899f0a0102492c3946feff9faaf2ed81ca7bd5420f1f9526ac [INFO] running `Command { std: "docker" "start" "-a" "1e7a8830064951899f0a0102492c3946feff9faaf2ed81ca7bd5420f1f9526ac", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "1e7a8830064951899f0a0102492c3946feff9faaf2ed81ca7bd5420f1f9526ac", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1e7a8830064951899f0a0102492c3946feff9faaf2ed81ca7bd5420f1f9526ac", kill_on_drop: false }` [INFO] [stdout] 1e7a8830064951899f0a0102492c3946feff9faaf2ed81ca7bd5420f1f9526ac [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] bf6325aabe6fe87d88f717cb6122e97bdeea72ac7673264c2ec85f99cfc46127 [INFO] running `Command { std: "docker" "start" "-a" "bf6325aabe6fe87d88f717cb6122e97bdeea72ac7673264c2ec85f99cfc46127", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.159 [INFO] [stderr] Checking os-thread-local v0.1.3 [INFO] [stderr] Checking peril v0.4.2 (/opt/rustwide/workdir) [INFO] [stdout] warning: field `1` is never read [INFO] [stdout] --> src/lib.rs:1007:47 [INFO] [stdout] | [INFO] [stdout] 1007 | struct DeletedItem(*mut (), Arc>); [INFO] [stdout] | ----------- field in this struct ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: consider removing this field [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `Arc::::into_raw` that must be used [INFO] [stdout] --> src/lib.rs:279:17 [INFO] [stdout] | [INFO] [stdout] 279 | Arc::into_raw(boxed); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: losing the pointer will leak memory [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 279 | let _ = Arc::into_raw(boxed); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `Arc::::into_raw` that must be used [INFO] [stdout] --> src/lib.rs:587:13 [INFO] [stdout] | [INFO] [stdout] 587 | Arc::into_raw(boxed); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: losing the pointer will leak memory [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 587 | let _ = Arc::into_raw(boxed); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `1` is never read [INFO] [stdout] --> src/lib.rs:1007:47 [INFO] [stdout] | [INFO] [stdout] 1007 | struct DeletedItem(*mut (), Arc>); [INFO] [stdout] | ----------- field in this struct ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: consider removing this field [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `Arc::::into_raw` that must be used [INFO] [stdout] --> src/lib.rs:279:17 [INFO] [stdout] | [INFO] [stdout] 279 | Arc::into_raw(boxed); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: losing the pointer will leak memory [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 279 | let _ = Arc::into_raw(boxed); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `Arc::::into_raw` that must be used [INFO] [stdout] --> src/lib.rs:587:13 [INFO] [stdout] | [INFO] [stdout] 587 | Arc::into_raw(boxed); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: losing the pointer will leak memory [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 587 | let _ = Arc::into_raw(boxed); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.89s [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "bf6325aabe6fe87d88f717cb6122e97bdeea72ac7673264c2ec85f99cfc46127", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "bf6325aabe6fe87d88f717cb6122e97bdeea72ac7673264c2ec85f99cfc46127", kill_on_drop: false }` [INFO] [stdout] bf6325aabe6fe87d88f717cb6122e97bdeea72ac7673264c2ec85f99cfc46127