[INFO] fetching crate tiny_http 0.12.0... [INFO] building tiny_http-0.12.0 against master#11663cd3bfefef7d34e8f0892c250bf698049392+rustflags=-Dtail-expr-drop-order for pr-134523 [INFO] extracting crate tiny_http 0.12.0 into /workspace/builds/worker-4-tc1/source [INFO] validating manifest of crates.io crate tiny_http 0.12.0 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 crates.io crate tiny_http 0.12.0 [INFO] finished tweaking crates.io crate tiny_http 0.12.0 [INFO] tweaked toml for crates.io crate tiny_http 0.12.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml [INFO] crate crates.io crate tiny_http 0.12.0 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] Downloading crates ... [INFO] [stderr] Downloaded ascii v1.0.0 [INFO] [stderr] Downloaded fdlimit v0.1.4 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] ffd2bc7350c4f7f7fbc78221f48737fb346ff74daafe7331d87095189cadc675 [INFO] running `Command { std: "docker" "start" "-a" "ffd2bc7350c4f7f7fbc78221f48737fb346ff74daafe7331d87095189cadc675", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "ffd2bc7350c4f7f7fbc78221f48737fb346ff74daafe7331d87095189cadc675", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ffd2bc7350c4f7f7fbc78221f48737fb346ff74daafe7331d87095189cadc675", kill_on_drop: false }` [INFO] [stdout] ffd2bc7350c4f7f7fbc78221f48737fb346ff74daafe7331d87095189cadc675 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] f56012fa397005a62d4b2b2ecac5d4c165dda15b30ec36e5d340fea21b2e439e [INFO] running `Command { std: "docker" "start" "-a" "f56012fa397005a62d4b2b2ecac5d4c165dda15b30ec36e5d340fea21b2e439e", kill_on_drop: false }` [INFO] [stderr] Compiling log v0.4.17 [INFO] [stderr] Compiling httpdate v1.0.2 [INFO] [stderr] Compiling chunked_transfer v1.4.0 [INFO] [stderr] Compiling ascii v1.0.0 [INFO] [stderr] Compiling tiny_http v0.12.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `SequentialWriter` [INFO] [stdout] --> src/util/mod.rs:7:28 [INFO] [stdout] | [INFO] [stdout] 7 | pub use self::sequential::{SequentialWriter, SequentialWriterBuilder}; [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: relative drop order changing in Rust 2024 [INFO] [stdout] --> src/util/messages_queue.rs:62:15 [INFO] [stdout] | [INFO] [stdout] 61 | let mut queue = self.queue.lock().unwrap(); [INFO] [stdout] | --------- [INFO] [stdout] | | [INFO] [stdout] | `queue` calls a custom destructor [INFO] [stdout] | `queue` will be dropped later as of Edition 2024 [INFO] [stdout] 62 | match queue.pop_front() { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | this value will be stored in a temporary; let us call it `#1` [INFO] [stdout] | up until Edition 2021 `#1` is dropped last but will be dropped earlier in Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 66 | } [INFO] [stdout] | - now the temporary value is dropped here, before the local variables in the block or statement [INFO] [stdout] | [INFO] [stdout] = warning: this changes meaning in Rust 2024 [INFO] [stdout] = note: for more information, see [INFO] [stdout] note: `queue` invokes this custom destructor [INFO] [stdout] --> /rustc/11663cd3bfefef7d34e8f0892c250bf698049392/library/std/src/sync/mutex.rs:644:1 [INFO] [stdout] = note: most of the time, changing drop order is harmless; inspect the `impl Drop`s for side effects like releasing locks or sending messages [INFO] [stdout] = note: requested on the command line with `-D tail-expr-drop-order` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait `MustBeShareDummy` is never used [INFO] [stdout] --> src/lib.rs:164:7 [INFO] [stdout] | [INFO] [stdout] 164 | trait MustBeShareDummy: Sync + Send {} [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `tiny_http` (lib) due to 1 previous error; 2 warnings emitted [INFO] running `Command { std: "docker" "inspect" "f56012fa397005a62d4b2b2ecac5d4c165dda15b30ec36e5d340fea21b2e439e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f56012fa397005a62d4b2b2ecac5d4c165dda15b30ec36e5d340fea21b2e439e", kill_on_drop: false }` [INFO] [stdout] f56012fa397005a62d4b2b2ecac5d4c165dda15b30ec36e5d340fea21b2e439e