[INFO] fetching crate snmp 0.2.2... [INFO] checking snmp-0.2.2 against try#4d98531622e1718ae0bc3c7a1ab9cd8938428452+rustflags=-Dtail_expr_drop_order for pr-129604 [INFO] extracting crate snmp 0.2.2 into /workspace/builds/worker-1-tc2/source [INFO] validating manifest of crates.io crate snmp 0.2.2 on toolchain 4d98531622e1718ae0bc3c7a1ab9cd8938428452 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4d98531622e1718ae0bc3c7a1ab9cd8938428452" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate snmp 0.2.2 [INFO] finished tweaking crates.io crate snmp 0.2.2 [INFO] tweaked toml for crates.io crate snmp 0.2.2 written to /workspace/builds/worker-1-tc2/source/Cargo.toml [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4d98531622e1718ae0bc3c7a1ab9cd8938428452" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4d98531622e1718ae0bc3c7a1ab9cd8938428452" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+4d98531622e1718ae0bc3c7a1ab9cd8938428452" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 25df5472f139663e1fa2c7097e68c1fe543551b062f38274328a974e909df051 [INFO] running `Command { std: "docker" "start" "-a" "25df5472f139663e1fa2c7097e68c1fe543551b062f38274328a974e909df051", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "25df5472f139663e1fa2c7097e68c1fe543551b062f38274328a974e909df051", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "25df5472f139663e1fa2c7097e68c1fe543551b062f38274328a974e909df051", kill_on_drop: false }` [INFO] [stdout] 25df5472f139663e1fa2c7097e68c1fe543551b062f38274328a974e909df051 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+4d98531622e1718ae0bc3c7a1ab9cd8938428452" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] c1d34d79465b8ce3d9ac853a5b42c65d996198fabaa06413f123b9d5ff91ba8d [INFO] running `Command { std: "docker" "start" "-a" "c1d34d79465b8ce3d9ac853a5b42c65d996198fabaa06413f123b9d5ff91ba8d", kill_on_drop: false }` [INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] Checking snmp v0.2.2 (/opt/rustwide/workdir) [INFO] [stdout] warning: unexpected `cfg` condition value: `private-tests` [INFO] [stdout] --> src/lib.rs:95:13 [INFO] [stdout] | [INFO] [stdout] 95 | #![cfg_attr(feature = "private-tests", feature(test))] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove the condition [INFO] [stdout] | [INFO] [stdout] = note: no expected values for `feature` [INFO] [stdout] = help: consider adding `private-tests` as a feature in `Cargo.toml` [INFO] [stdout] = note: see for more information about checking conditional configuration [INFO] [stdout] = note: `#[warn(unexpected_cfgs)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unexpected `cfg` condition value: `private-tests` [INFO] [stdout] --> src/lib.rs:95:13 [INFO] [stdout] | [INFO] [stdout] 95 | #![cfg_attr(feature = "private-tests", feature(test))] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove the condition [INFO] [stdout] | [INFO] [stdout] = note: no expected values for `feature` [INFO] [stdout] = help: consider adding `private-tests` as a feature in `Cargo.toml` [INFO] [stdout] = note: see for more information about checking conditional configuration [INFO] [stdout] = note: `#[warn(unexpected_cfgs)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead [INFO] [stdout] --> src/lib.rs:573:47 [INFO] [stdout] | [INFO] [stdout] 573 | let mut buf: ObjIdBuf = unsafe { mem::uninitialized() }; [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(deprecated)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead [INFO] [stdout] --> src/lib.rs:594:47 [INFO] [stdout] | [INFO] [stdout] 594 | let mut buf: ObjIdBuf = unsafe { mem::uninitialized() }; [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead [INFO] [stdout] --> src/lib.rs:222:36 [INFO] [stdout] | [INFO] [stdout] 222 | buf: unsafe { mem::uninitialized() }, [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead [INFO] [stdout] --> src/lib.rs:573:47 [INFO] [stdout] | [INFO] [stdout] 573 | let mut buf: ObjIdBuf = unsafe { mem::uninitialized() }; [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(deprecated)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead [INFO] [stdout] --> src/lib.rs:594:47 [INFO] [stdout] | [INFO] [stdout] 594 | let mut buf: ObjIdBuf = unsafe { mem::uninitialized() }; [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead [INFO] [stdout] --> src/lib.rs:222:36 [INFO] [stdout] | [INFO] [stdout] 222 | buf: unsafe { mem::uninitialized() }, [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/lib.rs:348:21 [INFO] [stdout] | [INFO] [stdout] 348 | let mut wbuf = self.available(); [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `version` is never read [INFO] [stdout] --> src/lib.rs:1169:5 [INFO] [stdout] | [INFO] [stdout] 1168 | pub struct SnmpPdu<'a> { [INFO] [stdout] | ------- field in this struct [INFO] [stdout] 1169 | version: i64, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `SnmpPdu` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the type `[u32; 128]` does not permit being left uninitialized [INFO] [stdout] --> src/lib.rs:573:42 [INFO] [stdout] | [INFO] [stdout] 573 | let mut buf: ObjIdBuf = unsafe { mem::uninitialized() }; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | this code causes undefined behavior when executed [INFO] [stdout] | help: use `MaybeUninit` instead, and only call `assume_init` after initialization is done [INFO] [stdout] | [INFO] [stdout] = note: integers must be initialized [INFO] [stdout] = note: `#[warn(invalid_value)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the type `[u32; 128]` does not permit being left uninitialized [INFO] [stdout] --> src/lib.rs:594:42 [INFO] [stdout] | [INFO] [stdout] 594 | let mut buf: ObjIdBuf = unsafe { mem::uninitialized() }; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | this code causes undefined behavior when executed [INFO] [stdout] | help: use `MaybeUninit` instead, and only call `assume_init` after initialization is done [INFO] [stdout] | [INFO] [stdout] = note: integers must be initialized [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/lib.rs:1058:12 [INFO] [stdout] | [INFO] [stdout] 1048 | pub fn new(destination: SA, community: &[u8], timeout: Option, starting_req_id: i32) -> io::Result [INFO] [stdout] | --------------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 1051 | let socket = match destination.to_socket_addrs()?.next() { [INFO] [stdout] | ------ these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 1058 | Ok(SyncSession { [INFO] [stdout] | ____________^ [INFO] [stdout] 1059 | | socket: socket, [INFO] [stdout] 1060 | | community: community.to_vec(), [INFO] [stdout] 1061 | | req_id: Wrapping(starting_req_id), [INFO] [stdout] 1062 | | send_pdu: pdu::Buf::default(), [INFO] [stdout] 1063 | | recv_buf: [0; 4096], [INFO] [stdout] 1064 | | }) [INFO] [stdout] | | ^ [INFO] [stdout] | | | [INFO] [stdout] | | these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] | | these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] | | these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] | | these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] | | these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] | |_________these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] | [INFO] [stdout] | [INFO] [stdout] = warning: this changes meaning in Rust 2024 [INFO] [stdout] = note: for more information, see issue #123739 [INFO] [stdout] = note: requested on the command line with `-D tail-expr-drop-order` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the type `[u8; 4096]` does not permit being left uninitialized [INFO] [stdout] --> src/lib.rs:222:31 [INFO] [stdout] | [INFO] [stdout] 222 | buf: unsafe { mem::uninitialized() }, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | this code causes undefined behavior when executed [INFO] [stdout] | help: use `MaybeUninit` instead, and only call `assume_init` after initialization is done [INFO] [stdout] | [INFO] [stdout] = note: integers must be initialized [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 1 previous error; 9 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `snmp` (lib) due to 2 previous errors; 9 warnings emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/lib.rs:348:21 [INFO] [stdout] | [INFO] [stdout] 348 | let mut wbuf = self.available(); [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `version` is never read [INFO] [stdout] --> src/lib.rs:1169:5 [INFO] [stdout] | [INFO] [stdout] 1168 | pub struct SnmpPdu<'a> { [INFO] [stdout] | ------- field in this struct [INFO] [stdout] 1169 | version: i64, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `SnmpPdu` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the type `[u32; 128]` does not permit being left uninitialized [INFO] [stdout] --> src/lib.rs:573:42 [INFO] [stdout] | [INFO] [stdout] 573 | let mut buf: ObjIdBuf = unsafe { mem::uninitialized() }; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | this code causes undefined behavior when executed [INFO] [stdout] | help: use `MaybeUninit` instead, and only call `assume_init` after initialization is done [INFO] [stdout] | [INFO] [stdout] = note: integers must be initialized [INFO] [stdout] = note: `#[warn(invalid_value)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the type `[u32; 128]` does not permit being left uninitialized [INFO] [stdout] --> src/lib.rs:594:42 [INFO] [stdout] | [INFO] [stdout] 594 | let mut buf: ObjIdBuf = unsafe { mem::uninitialized() }; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | this code causes undefined behavior when executed [INFO] [stdout] | help: use `MaybeUninit` instead, and only call `assume_init` after initialization is done [INFO] [stdout] | [INFO] [stdout] = note: integers must be initialized [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/lib.rs:1058:12 [INFO] [stdout] | [INFO] [stdout] 1048 | pub fn new(destination: SA, community: &[u8], timeout: Option, starting_req_id: i32) -> io::Result [INFO] [stdout] | --------------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 1051 | let socket = match destination.to_socket_addrs()?.next() { [INFO] [stdout] | ------ these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 1058 | Ok(SyncSession { [INFO] [stdout] | ____________^ [INFO] [stdout] 1059 | | socket: socket, [INFO] [stdout] 1060 | | community: community.to_vec(), [INFO] [stdout] 1061 | | req_id: Wrapping(starting_req_id), [INFO] [stdout] 1062 | | send_pdu: pdu::Buf::default(), [INFO] [stdout] 1063 | | recv_buf: [0; 4096], [INFO] [stdout] 1064 | | }) [INFO] [stdout] | | ^ [INFO] [stdout] | | | [INFO] [stdout] | | these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] | | these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] | | these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] | | these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] | | these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] | |_________these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] | [INFO] [stdout] | [INFO] [stdout] = warning: this changes meaning in Rust 2024 [INFO] [stdout] = note: for more information, see issue #123739 [INFO] [stdout] = note: requested on the command line with `-D tail-expr-drop-order` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the type `[u8; 4096]` does not permit being left uninitialized [INFO] [stdout] --> src/lib.rs:222:31 [INFO] [stdout] | [INFO] [stdout] 222 | buf: unsafe { mem::uninitialized() }, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | this code causes undefined behavior when executed [INFO] [stdout] | help: use `MaybeUninit` instead, and only call `assume_init` after initialization is done [INFO] [stdout] | [INFO] [stdout] = note: integers must be initialized [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 1 previous error; 9 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `snmp` (lib test) due to 2 previous errors; 9 warnings emitted [INFO] running `Command { std: "docker" "inspect" "c1d34d79465b8ce3d9ac853a5b42c65d996198fabaa06413f123b9d5ff91ba8d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c1d34d79465b8ce3d9ac853a5b42c65d996198fabaa06413f123b9d5ff91ba8d", kill_on_drop: false }` [INFO] [stdout] c1d34d79465b8ce3d9ac853a5b42c65d996198fabaa06413f123b9d5ff91ba8d