[INFO] fetching crate uexec 0.1.4... [INFO] checking uexec-0.1.4 against master#22572d0994593197593e2a1b7b18d720a9a349a7 for pr-126452-1 [INFO] extracting crate uexec 0.1.4 into /workspace/builds/worker-5-tc1/source [INFO] validating manifest of crates.io crate uexec 0.1.4 on toolchain 22572d0994593197593e2a1b7b18d720a9a349a7 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate uexec 0.1.4 [INFO] finished tweaking crates.io crate uexec 0.1.4 [INFO] tweaked toml for crates.io crate uexec 0.1.4 written to /workspace/builds/worker-5-tc1/source/Cargo.toml [INFO] crate crates.io crate uexec 0.1.4 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" "+22572d0994593197593e2a1b7b18d720a9a349a7" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded futures-io v0.3.14 [INFO] [stderr] Downloaded easy-parallel v3.1.0 [INFO] [stderr] Downloaded futures-sink v0.3.14 [INFO] [stderr] Downloaded wasm-bindgen-shared v0.2.73 [INFO] [stderr] Downloaded wasm-bindgen-macro v0.2.73 [INFO] [stderr] Downloaded crossbeam-utils v0.8.4 [INFO] [stderr] Downloaded wasm-bindgen-backend v0.2.73 [INFO] [stderr] Downloaded js-sys v0.3.50 [INFO] [stderr] Downloaded wasm-bindgen v0.2.73 [INFO] [stderr] Downloaded flume v0.10.5 [INFO] [stderr] Downloaded wasm-bindgen-macro-support v0.2.73 [INFO] [stderr] Downloaded spinning_top v0.2.3 [INFO] [stderr] Downloaded futures-lite v1.11.3 [INFO] [stderr] Downloaded nanorand v0.5.2 [INFO] [stderr] Downloaded futures-core v0.3.14 [INFO] [stderr] Downloaded fastrand v1.4.1 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] ee6cd5221d8054b7c40afb63e497152d582827432dc98bdd88f78165cc428f6c [INFO] running `Command { std: "docker" "start" "-a" "ee6cd5221d8054b7c40afb63e497152d582827432dc98bdd88f78165cc428f6c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "ee6cd5221d8054b7c40afb63e497152d582827432dc98bdd88f78165cc428f6c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ee6cd5221d8054b7c40afb63e497152d582827432dc98bdd88f78165cc428f6c", kill_on_drop: false }` [INFO] [stdout] ee6cd5221d8054b7c40afb63e497152d582827432dc98bdd88f78165cc428f6c [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 250397dc0e00b01dbedce26e1f7a4367a41c07a3ce625a5da385ce41ba13cbae [INFO] running `Command { std: "docker" "start" "-a" "250397dc0e00b01dbedce26e1f7a4367a41c07a3ce625a5da385ce41ba13cbae", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.94 [INFO] [stderr] Compiling proc-macro2 v1.0.26 [INFO] [stderr] Compiling unicode-xid v0.2.2 [INFO] [stderr] Compiling syn v1.0.72 [INFO] [stderr] Compiling getrandom v0.2.2 [INFO] [stderr] Checking futures-core v0.3.14 [INFO] [stderr] Compiling memchr v2.4.0 [INFO] [stderr] Checking futures-sink v0.3.14 [INFO] [stderr] Checking fastrand v1.4.1 [INFO] [stderr] Checking once_cell v1.7.2 [INFO] [stderr] Checking lock_api v0.4.4 [INFO] [stderr] Compiling crossbeam-utils v0.8.4 [INFO] [stderr] Checking futures-io v0.3.14 [INFO] [stderr] Checking pin-project-lite v0.2.6 [INFO] [stderr] Checking waker-fn v1.1.0 [INFO] [stderr] Checking parking v2.0.0 [INFO] [stderr] Checking easy-parallel v3.1.0 [INFO] [stderr] Checking spinning_top v0.2.3 [INFO] [stderr] Checking futures-lite v1.11.3 [INFO] [stderr] Compiling quote v1.0.9 [INFO] [stderr] Checking parking_lot_core v0.8.3 [INFO] [stderr] Checking num_cpus v1.13.0 [INFO] [stderr] Checking nanorand v0.5.2 [INFO] [stderr] Checking parking_lot v0.11.1 [INFO] [stderr] Compiling pin-project-internal v1.0.7 [INFO] [stderr] Checking pin-project v1.0.7 [INFO] [stderr] Checking flume v0.10.5 [INFO] [stderr] Checking uexec v0.1.4 (/opt/rustwide/workdir) [INFO] [stdout] warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing [INFO] [stdout] --> examples/channel.rs:20:13 [INFO] [stdout] | [INFO] [stdout] 20 | drop(sender.send_async(Some(i)).await); [INFO] [stdout] | ^^^^^--------------------------------^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `Result<(), flume::SendError>>` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dropping_copy_types)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the expression or result [INFO] [stdout] | [INFO] [stdout] 20 - drop(sender.send_async(Some(i)).await); [INFO] [stdout] 20 + let _ = sender.send_async(Some(i)).await; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing [INFO] [stdout] --> examples/channel.rs:23:17 [INFO] [stdout] | [INFO] [stdout] 23 | drop(sender.send_async(None).await); [INFO] [stdout] | ^^^^^-----------------------------^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `Result<(), flume::SendError>>` [INFO] [stdout] | [INFO] [stdout] help: use `let _ = ...` to ignore the expression or result [INFO] [stdout] | [INFO] [stdout] 23 - drop(sender.send_async(None).await); [INFO] [stdout] 23 + let _ = sender.send_async(None).await; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.68s [INFO] running `Command { std: "docker" "inspect" "250397dc0e00b01dbedce26e1f7a4367a41c07a3ce625a5da385ce41ba13cbae", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "250397dc0e00b01dbedce26e1f7a4367a41c07a3ce625a5da385ce41ba13cbae", kill_on_drop: false }` [INFO] [stdout] 250397dc0e00b01dbedce26e1f7a4367a41c07a3ce625a5da385ce41ba13cbae