[INFO] fetching crate chainmap 0.1.2... [INFO] checking chainmap-0.1.2 against try#4d98531622e1718ae0bc3c7a1ab9cd8938428452+rustflags=-Dtail_expr_drop_order for pr-129604 [INFO] extracting crate chainmap 0.1.2 into /workspace/builds/worker-7-tc2/source [INFO] validating manifest of crates.io crate chainmap 0.1.2 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 chainmap 0.1.2 [INFO] finished tweaking crates.io crate chainmap 0.1.2 [INFO] tweaked toml for crates.io crate chainmap 0.1.2 written to /workspace/builds/worker-7-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] [stderr] Blocking waiting for file lock on package cache [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] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 814e9158e4b74d36909fc1b0dc0cc8d1e24f053d6d537eba12652ee0044dfaa1 [INFO] running `Command { std: "docker" "start" "-a" "814e9158e4b74d36909fc1b0dc0cc8d1e24f053d6d537eba12652ee0044dfaa1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "814e9158e4b74d36909fc1b0dc0cc8d1e24f053d6d537eba12652ee0044dfaa1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "814e9158e4b74d36909fc1b0dc0cc8d1e24f053d6d537eba12652ee0044dfaa1", kill_on_drop: false }` [INFO] [stdout] 814e9158e4b74d36909fc1b0dc0cc8d1e24f053d6d537eba12652ee0044dfaa1 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] ac538014814bdee7d400d319a6d139904ef3f0f5292d1d2fec03fd0c93074e5b [INFO] running `Command { std: "docker" "start" "-a" "ac538014814bdee7d400d319a6d139904ef3f0f5292d1d2fec03fd0c93074e5b", kill_on_drop: false }` [INFO] [stderr] Checking chainmap v0.1.2 (/opt/rustwide/workdir) [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:71:19 [INFO] [stdout] | [INFO] [stdout] 69 | pub fn new_with(h: HashMap) -> Self { [INFO] [stdout] | ---------------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 70 | Self { [INFO] [stdout] 71 | head: Some(Rc::new(Node { [INFO] [stdout] | ___________________^ [INFO] [stdout] 72 | | elem: Mutex::new(h), [INFO] [stdout] 73 | | next: None, [INFO] [stdout] 74 | | fallthrough: false, [INFO] [stdout] 75 | | unlocked: Mutex::new(true), [INFO] [stdout] 76 | | write_auth: Mutex::new(true), [INFO] [stdout] 77 | | })), [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] 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:318:19 [INFO] [stdout] | [INFO] [stdout] 316 | pub fn extend_with(&self, h: HashMap) -> Self { [INFO] [stdout] | ---------------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 317 | Self { [INFO] [stdout] 318 | head: Some(Rc::new(Node { [INFO] [stdout] | ___________________^ [INFO] [stdout] 319 | | elem: Mutex::new(h), [INFO] [stdout] 320 | | next: self.head.clone(), [INFO] [stdout] 321 | | fallthrough: false, [INFO] [stdout] 322 | | unlocked: Mutex::new(true), [INFO] [stdout] 323 | | write_auth: Mutex::new(true), [INFO] [stdout] 324 | | })), [INFO] [stdout] | |_______________^ [INFO] [stdout] | [INFO] [stdout] = warning: this changes meaning in Rust 2024 [INFO] [stdout] = note: for more information, see issue #123739 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used [INFO] [stdout] --> src/lib.rs:331:9 [INFO] [stdout] | [INFO] [stdout] 331 | std::mem::replace(&mut *self, oldlevel); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: if you don't need the old value, you can just assign the new value directly [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 331 | let _ = std::mem::replace(&mut *self, oldlevel); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used [INFO] [stdout] --> src/lib.rs:416:9 [INFO] [stdout] | [INFO] [stdout] 416 | std::mem::replace(&mut *self, oldlevel); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: if you don't need the old value, you can just assign the new value directly [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 416 | let _ = std::mem::replace(&mut *self, oldlevel); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 2 previous errors; 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `chainmap` (lib) due to 3 previous errors; 2 warnings emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [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:71:19 [INFO] [stdout] | [INFO] [stdout] 69 | pub fn new_with(h: HashMap) -> Self { [INFO] [stdout] | ---------------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 70 | Self { [INFO] [stdout] 71 | head: Some(Rc::new(Node { [INFO] [stdout] | ___________________^ [INFO] [stdout] 72 | | elem: Mutex::new(h), [INFO] [stdout] 73 | | next: None, [INFO] [stdout] 74 | | fallthrough: false, [INFO] [stdout] 75 | | unlocked: Mutex::new(true), [INFO] [stdout] 76 | | write_auth: Mutex::new(true), [INFO] [stdout] 77 | | })), [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] 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:318:19 [INFO] [stdout] | [INFO] [stdout] 316 | pub fn extend_with(&self, h: HashMap) -> Self { [INFO] [stdout] | ---------------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 317 | Self { [INFO] [stdout] 318 | head: Some(Rc::new(Node { [INFO] [stdout] | ___________________^ [INFO] [stdout] 319 | | elem: Mutex::new(h), [INFO] [stdout] 320 | | next: self.head.clone(), [INFO] [stdout] 321 | | fallthrough: false, [INFO] [stdout] 322 | | unlocked: Mutex::new(true), [INFO] [stdout] 323 | | write_auth: Mutex::new(true), [INFO] [stdout] 324 | | })), [INFO] [stdout] | |_______________^ [INFO] [stdout] | [INFO] [stdout] = warning: this changes meaning in Rust 2024 [INFO] [stdout] = note: for more information, see issue #123739 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used [INFO] [stdout] --> src/lib.rs:331:9 [INFO] [stdout] | [INFO] [stdout] 331 | std::mem::replace(&mut *self, oldlevel); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: if you don't need the old value, you can just assign the new value directly [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 331 | let _ = std::mem::replace(&mut *self, oldlevel); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used [INFO] [stdout] --> src/lib.rs:416:9 [INFO] [stdout] | [INFO] [stdout] 416 | std::mem::replace(&mut *self, oldlevel); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: if you don't need the old value, you can just assign the new value directly [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 416 | let _ = std::mem::replace(&mut *self, oldlevel); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 2 previous errors; 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `chainmap` (lib test) due to 3 previous errors; 2 warnings emitted [INFO] running `Command { std: "docker" "inspect" "ac538014814bdee7d400d319a6d139904ef3f0f5292d1d2fec03fd0c93074e5b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ac538014814bdee7d400d319a6d139904ef3f0f5292d1d2fec03fd0c93074e5b", kill_on_drop: false }` [INFO] [stdout] ac538014814bdee7d400d319a6d139904ef3f0f5292d1d2fec03fd0c93074e5b