[INFO] cloning repository https://github.com/fprasx/arcs [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/fprasx/arcs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffprasx%2Farcs", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffprasx%2Farcs'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 69c21e0d023a84220b7b11a1239509c31de85027 [INFO] building fprasx/arcs 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%2Ffprasx%2Farcs" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/fprasx/arcs 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/fprasx/arcs [INFO] finished tweaking git repo https://github.com/fprasx/arcs [INFO] tweaked toml for git repo https://github.com/fprasx/arcs written to /workspace/builds/worker-0-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/fprasx/arcs 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] Updating crates.io index [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded haphazard v0.1.4 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 75698dbe18c2d5d0b7891677c06fc91537a5327589f9d8ae09b5c9e6e316a451 [INFO] running `Command { std: "docker" "start" "-a" "75698dbe18c2d5d0b7891677c06fc91537a5327589f9d8ae09b5c9e6e316a451", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "75698dbe18c2d5d0b7891677c06fc91537a5327589f9d8ae09b5c9e6e316a451", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "75698dbe18c2d5d0b7891677c06fc91537a5327589f9d8ae09b5c9e6e316a451", kill_on_drop: false }` [INFO] [stdout] 75698dbe18c2d5d0b7891677c06fc91537a5327589f9d8ae09b5c9e6e316a451 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 6464ddc83e0daa9f9864d52c8ea311186af5a14932a334c85fb84595d3c174f8 [INFO] running `Command { std: "docker" "start" "-a" "6464ddc83e0daa9f9864d52c8ea311186af5a14932a334c85fb84595d3c174f8", kill_on_drop: false }` [INFO] [stderr] Compiling crossbeam-utils v0.8.8 [INFO] [stderr] Compiling crossbeam-queue v0.3.5 [INFO] [stderr] Compiling haphazard v0.1.4 [INFO] [stderr] Compiling unlocked v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: the feature `bench_black_box` has been stable since 1.66.0 and no longer requires an attribute to enable [INFO] [stdout] --> src/lib.rs:3:12 [INFO] [stdout] | [INFO] [stdout] 3 | #![feature(bench_black_box)] [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(stable_features)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `Box::::from_raw` that must be used [INFO] [stdout] --> src/sealed.rs:269:17 [INFO] [stdout] | [INFO] [stdout] 269 | Box::from_raw(next_desc); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: call `drop(Box::from_raw(ptr))` if you intend to drop the `Box` [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 269 | let _ = Box::from_raw(next_desc); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `Box::::from_raw` that must be used [INFO] [stdout] --> src/sealed.rs:341:17 [INFO] [stdout] | [INFO] [stdout] 341 | Box::from_raw(next_desc); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: call `drop(Box::from_raw(ptr))` if you intend to drop the `Box` [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 341 | let _ = Box::from_raw(next_desc); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `Box::::from_raw` that must be used [INFO] [stdout] --> src/sealed.rs:499:13 [INFO] [stdout] | [INFO] [stdout] 499 | Box::from_raw(desc); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: call `drop(Box::from_raw(ptr))` if you intend to drop the `Box` [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 499 | let _ = Box::from_raw(desc); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `Box::::from_raw` that must be used [INFO] [stdout] --> src/sealed.rs:510:13 [INFO] [stdout] | [INFO] [stdout] 510 | / Box::from_raw( [INFO] [stdout] 511 | | self.pending [INFO] [stdout] 512 | | .swap_ptr(ptr::null_mut()) [INFO] [stdout] 513 | | .unwrap() [INFO] [stdout] 514 | | .into_inner() [INFO] [stdout] 515 | | .as_ptr(), [INFO] [stdout] 516 | | ); [INFO] [stdout] | |_____________^ [INFO] [stdout] | [INFO] [stdout] = note: call `drop(Box::from_raw(ptr))` if you intend to drop the `Box` [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 510 | let _ = Box::from_raw( [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.00s [INFO] running `Command { std: "docker" "inspect" "6464ddc83e0daa9f9864d52c8ea311186af5a14932a334c85fb84595d3c174f8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6464ddc83e0daa9f9864d52c8ea311186af5a14932a334c85fb84595d3c174f8", kill_on_drop: false }` [INFO] [stdout] 6464ddc83e0daa9f9864d52c8ea311186af5a14932a334c85fb84595d3c174f8 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] b84c3c0c76f2f287b013c63f53ee4e1be59dcdd14445087a4ab1feb455a6feca [INFO] running `Command { std: "docker" "start" "-a" "b84c3c0c76f2f287b013c63f53ee4e1be59dcdd14445087a4ab1feb455a6feca", kill_on_drop: false }` [INFO] [stderr] Compiling unlocked v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: the feature `bench_black_box` has been stable since 1.66.0 and no longer requires an attribute to enable [INFO] [stdout] --> src/lib.rs:3:12 [INFO] [stdout] | [INFO] [stdout] 3 | #![feature(bench_black_box)] [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(stable_features)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `Box::::from_raw` that must be used [INFO] [stdout] --> src/sealed.rs:269:17 [INFO] [stdout] | [INFO] [stdout] 269 | Box::from_raw(next_desc); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: call `drop(Box::from_raw(ptr))` if you intend to drop the `Box` [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 269 | let _ = Box::from_raw(next_desc); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `Box::::from_raw` that must be used [INFO] [stdout] --> src/sealed.rs:341:17 [INFO] [stdout] | [INFO] [stdout] 341 | Box::from_raw(next_desc); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: call `drop(Box::from_raw(ptr))` if you intend to drop the `Box` [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 341 | let _ = Box::from_raw(next_desc); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `Box::::from_raw` that must be used [INFO] [stdout] --> src/sealed.rs:499:13 [INFO] [stdout] | [INFO] [stdout] 499 | Box::from_raw(desc); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: call `drop(Box::from_raw(ptr))` if you intend to drop the `Box` [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 499 | let _ = Box::from_raw(desc); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `Box::::from_raw` that must be used [INFO] [stdout] --> src/sealed.rs:510:13 [INFO] [stdout] | [INFO] [stdout] 510 | / Box::from_raw( [INFO] [stdout] 511 | | self.pending [INFO] [stdout] 512 | | .swap_ptr(ptr::null_mut()) [INFO] [stdout] 513 | | .unwrap() [INFO] [stdout] 514 | | .into_inner() [INFO] [stdout] 515 | | .as_ptr(), [INFO] [stdout] 516 | | ); [INFO] [stdout] | |_____________^ [INFO] [stdout] | [INFO] [stdout] = note: call `drop(Box::from_raw(ptr))` if you intend to drop the `Box` [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 510 | let _ = Box::from_raw( [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the feature `bench_black_box` has been stable since 1.66.0 and no longer requires an attribute to enable [INFO] [stdout] --> src/lib.rs:3:12 [INFO] [stdout] | [INFO] [stdout] 3 | #![feature(bench_black_box)] [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(stable_features)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `leaky::alloc::boxed::Box::::from_raw` that must be used [INFO] [stdout] --> src/sealed.rs:269:17 [INFO] [stdout] | [INFO] [stdout] 269 | Box::from_raw(next_desc); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: call `drop(Box::from_raw(ptr))` if you intend to drop the `Box` [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 269 | let _ = Box::from_raw(next_desc); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `leaky::alloc::boxed::Box::::from_raw` that must be used [INFO] [stdout] --> src/sealed.rs:341:17 [INFO] [stdout] | [INFO] [stdout] 341 | Box::from_raw(next_desc); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: call `drop(Box::from_raw(ptr))` if you intend to drop the `Box` [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 341 | let _ = Box::from_raw(next_desc); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `leaky::alloc::boxed::Box::::from_raw` that must be used [INFO] [stdout] --> src/sealed.rs:499:13 [INFO] [stdout] | [INFO] [stdout] 499 | Box::from_raw(desc); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: call `drop(Box::from_raw(ptr))` if you intend to drop the `Box` [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 499 | let _ = Box::from_raw(desc); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `leaky::alloc::boxed::Box::::from_raw` that must be used [INFO] [stdout] --> src/sealed.rs:510:13 [INFO] [stdout] | [INFO] [stdout] 510 | / Box::from_raw( [INFO] [stdout] 511 | | self.pending [INFO] [stdout] 512 | | .swap_ptr(ptr::null_mut()) [INFO] [stdout] 513 | | .unwrap() [INFO] [stdout] 514 | | .into_inner() [INFO] [stdout] 515 | | .as_ptr(), [INFO] [stdout] 516 | | ); [INFO] [stdout] | |_____________^ [INFO] [stdout] | [INFO] [stdout] = note: call `drop(Box::from_raw(ptr))` if you intend to drop the `Box` [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 510 | let _ = Box::from_raw( [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 1.27s [INFO] running `Command { std: "docker" "inspect" "b84c3c0c76f2f287b013c63f53ee4e1be59dcdd14445087a4ab1feb455a6feca", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b84c3c0c76f2f287b013c63f53ee4e1be59dcdd14445087a4ab1feb455a6feca", kill_on_drop: false }` [INFO] [stdout] b84c3c0c76f2f287b013c63f53ee4e1be59dcdd14445087a4ab1feb455a6feca