[INFO] fetching crate mtcp-rs 0.1.11... [INFO] building mtcp-rs-0.1.11 against master#11663cd3bfefef7d34e8f0892c250bf698049392+rustflags=-Dtail-expr-drop-order for pr-134523 [INFO] extracting crate mtcp-rs 0.1.11 into /workspace/builds/worker-6-tc1/source [INFO] validating manifest of crates.io crate mtcp-rs 0.1.11 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 mtcp-rs 0.1.11 [INFO] removed 0 missing examples [INFO] finished tweaking crates.io crate mtcp-rs 0.1.11 [INFO] tweaked toml for crates.io crate mtcp-rs 0.1.11 written to /workspace/builds/worker-6-tc1/source/Cargo.toml [INFO] crate crates.io crate mtcp-rs 0.1.11 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 ctrlc v3.2.5 [INFO] [stderr] Downloaded lazy_rc v0.1.3 [INFO] [stderr] Downloaded spare_buffer v0.1.1 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] d2311c85f4674421ef57b687a6567305aba6e803d00d8467abfaa45d392edeee [INFO] running `Command { std: "docker" "start" "-a" "d2311c85f4674421ef57b687a6567305aba6e803d00d8467abfaa45d392edeee", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "d2311c85f4674421ef57b687a6567305aba6e803d00d8467abfaa45d392edeee", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d2311c85f4674421ef57b687a6567305aba6e803d00d8467abfaa45d392edeee", kill_on_drop: false }` [INFO] [stdout] d2311c85f4674421ef57b687a6567305aba6e803d00d8467abfaa45d392edeee [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 5e7211f5122a26a72d468971a2ab45512c905b98e65dccb9e7604a2edbf34758 [INFO] running `Command { std: "docker" "start" "-a" "5e7211f5122a26a72d468971a2ab45512c905b98e65dccb9e7604a2edbf34758", kill_on_drop: false }` [INFO] [stderr] Compiling log v0.4.17 [INFO] [stderr] Compiling libc v0.2.139 [INFO] [stderr] Compiling cfg-if v1.0.0 [INFO] [stderr] Compiling spare_buffer v0.1.1 [INFO] [stderr] Compiling lazy_rc v0.1.3 [INFO] [stderr] Compiling mio v0.8.6 [INFO] [stderr] Compiling mtcp-rs v0.1.11 (/opt/rustwide/workdir) [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.81s [INFO] running `Command { std: "docker" "inspect" "5e7211f5122a26a72d468971a2ab45512c905b98e65dccb9e7604a2edbf34758", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5e7211f5122a26a72d468971a2ab45512c905b98e65dccb9e7604a2edbf34758", kill_on_drop: false }` [INFO] [stdout] 5e7211f5122a26a72d468971a2ab45512c905b98e65dccb9e7604a2edbf34758 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] e98b71e568ec4aad440e54141152a2701df76fade856be827eb8e6c19434f143 [INFO] running `Command { std: "docker" "start" "-a" "e98b71e568ec4aad440e54141152a2701df76fade856be827eb8e6c19434f143", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.139 [INFO] [stderr] Compiling bitflags v1.3.2 [INFO] [stderr] Compiling memchr v2.5.0 [INFO] [stderr] Compiling log v0.4.17 [INFO] [stderr] Compiling io-lifetimes v1.0.5 [INFO] [stderr] Compiling rustix v0.36.8 [INFO] [stderr] Compiling crossbeam-utils v0.8.14 [INFO] [stderr] Compiling linux-raw-sys v0.1.4 [INFO] [stderr] Compiling static_assertions v1.1.0 [INFO] [stderr] Compiling regex-syntax v0.6.28 [INFO] [stderr] Compiling termcolor v1.2.0 [INFO] [stderr] Compiling humantime v2.1.0 [INFO] [stderr] Compiling lazy_static v1.4.0 [INFO] [stderr] Compiling crossbeam-channel v0.5.6 [INFO] [stderr] Compiling aho-corasick v0.7.20 [INFO] [stderr] Compiling nix v0.26.2 [INFO] [stderr] Compiling mio v0.8.6 [INFO] [stderr] Compiling socket2 v0.4.7 [INFO] [stderr] Compiling num_cpus v1.15.0 [INFO] [stderr] Compiling dns-lookup v1.0.8 [INFO] [stderr] Compiling mtcp-rs v0.1.11 (/opt/rustwide/workdir) [INFO] [stderr] Compiling regex v1.7.1 [INFO] [stderr] Compiling ctrlc v3.2.5 [INFO] [stderr] Compiling is-terminal v0.4.3 [INFO] [stderr] Compiling env_logger v0.10.0 [INFO] [stdout] error: relative drop order changing in Rust 2024 [INFO] [stdout] --> examples/mtcp_server.rs:68:37 [INFO] [stdout] | [INFO] [stdout] 68 | if let Err(error) = channel_tx.send_timeout(connection, Duration::from_secs(15)) { [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] | `error` calls a custom destructor [INFO] [stdout] | `error` will be dropped later as of Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 71 | }, [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: `#1` invokes this custom destructor [INFO] [stdout] --> /rustc/11663cd3bfefef7d34e8f0892c250bf698049392/library/std/src/os/fd/owned.rs:172:1 [INFO] [stdout] note: `error` invokes this custom destructor [INFO] [stdout] --> /rustc/11663cd3bfefef7d34e8f0892c250bf698049392/library/std/src/os/fd/owned.rs:172:1 [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] error: relative drop order changing in Rust 2024 [INFO] [stdout] --> examples/mtcp_server.rs:65:15 [INFO] [stdout] | [INFO] [stdout] 65 | match listener.accept(Some(Duration::from_secs(30))) { [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] 68 | if let Err(error) = channel_tx.send_timeout(connection, Duration::from_secs(15)) { [INFO] [stdout] | ----- [INFO] [stdout] | | [INFO] [stdout] | `error` calls a custom destructor [INFO] [stdout] | `error` will be dropped later as of Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 82 | } [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: `#1` invokes this custom destructor [INFO] [stdout] --> /rustc/11663cd3bfefef7d34e8f0892c250bf698049392/library/std/src/os/fd/owned.rs:172:1 [INFO] [stdout] note: `error` invokes this custom destructor [INFO] [stdout] --> /rustc/11663cd3bfefef7d34e8f0892c250bf698049392/library/std/src/os/fd/owned.rs:172:1 [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] [INFO] [stdout] [INFO] [stderr] error: could not compile `mtcp-rs` (example "mtcp_server") due to 2 previous errors [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] running `Command { std: "docker" "inspect" "e98b71e568ec4aad440e54141152a2701df76fade856be827eb8e6c19434f143", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e98b71e568ec4aad440e54141152a2701df76fade856be827eb8e6c19434f143", kill_on_drop: false }` [INFO] [stdout] e98b71e568ec4aad440e54141152a2701df76fade856be827eb8e6c19434f143