[INFO] fetching crate ex3-ic-stable-structures 0.6.0-beta.3... [INFO] building ex3-ic-stable-structures-0.6.0-beta.3 against master#11663cd3bfefef7d34e8f0892c250bf698049392+rustflags=-Dtail-expr-drop-order for pr-134523 [INFO] extracting crate ex3-ic-stable-structures 0.6.0-beta.3 into /workspace/builds/worker-4-tc1/source [INFO] validating manifest of crates.io crate ex3-ic-stable-structures 0.6.0-beta.3 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 ex3-ic-stable-structures 0.6.0-beta.3 [INFO] finished tweaking crates.io crate ex3-ic-stable-structures 0.6.0-beta.3 [INFO] tweaked toml for crates.io crate ex3-ic-stable-structures 0.6.0-beta.3 written to /workspace/builds/worker-4-tc1/source/Cargo.toml [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 121 packages to latest compatible versions [INFO] [stderr] Adding candid v0.9.11 (available: v0.10.11) [INFO] [stderr] Adding candid_derive v0.6.4 (available: v0.6.6) [INFO] [stderr] Adding ic-cdk v0.10.1 (available: v0.17.1) [INFO] [stderr] Adding ic-cdk-macros v0.7.1 (available: v0.17.1) [INFO] [stderr] Adding test-strategy v0.3.1 (available: v0.4.0) [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 structmeta-derive v0.2.0 [INFO] [stderr] Downloaded structmeta v0.2.0 [INFO] [stderr] Downloaded ic0 v0.18.11 [INFO] [stderr] Downloaded candid v0.9.11 [INFO] [stderr] Downloaded ic-cdk v0.10.1 [INFO] [stderr] Downloaded candid_derive v0.6.4 [INFO] [stderr] Downloaded ic-cdk-macros v0.7.1 [INFO] [stderr] Downloaded test-strategy v0.3.1 [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] 8e266d4395ce26f83fc6300499091a7b0ff8f4e510d2c874e6a584484e710021 [INFO] running `Command { std: "docker" "start" "-a" "8e266d4395ce26f83fc6300499091a7b0ff8f4e510d2c874e6a584484e710021", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "8e266d4395ce26f83fc6300499091a7b0ff8f4e510d2c874e6a584484e710021", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8e266d4395ce26f83fc6300499091a7b0ff8f4e510d2c874e6a584484e710021", kill_on_drop: false }` [INFO] [stdout] 8e266d4395ce26f83fc6300499091a7b0ff8f4e510d2c874e6a584484e710021 [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] 2eca9f99ab5b66be0467d6fed48b6578415113ca9cd904b883c0f3549a35ce38 [INFO] running `Command { std: "docker" "start" "-a" "2eca9f99ab5b66be0467d6fed48b6578415113ca9cd904b883c0f3549a35ce38", kill_on_drop: false }` [INFO] [stderr] Compiling ex3-ic-stable-structures v0.6.0-beta.3 (/opt/rustwide/workdir) [INFO] [stdout] warning: unexpected `cfg` condition value: `profiler` [INFO] [stdout] --> src/btreemap/node/v1.rs:63:15 [INFO] [stdout] | [INFO] [stdout] 63 | #[cfg(feature = "profiler")] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ help: remove the condition [INFO] [stdout] | [INFO] [stdout] = note: no expected values for `feature` [INFO] [stdout] = help: consider adding `profiler` 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: `profiler` [INFO] [stdout] --> src/btreemap/node/v1.rs:120:15 [INFO] [stdout] | [INFO] [stdout] 120 | #[cfg(feature = "profiler")] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ help: remove the condition [INFO] [stdout] | [INFO] [stdout] = note: no expected values for `feature` [INFO] [stdout] = help: consider adding `profiler` as a feature in `Cargo.toml` [INFO] [stdout] = note: see for more information about checking conditional configuration [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unexpected `cfg` condition value: `profiler` [INFO] [stdout] --> src/btreemap/node/v2.rs:115:15 [INFO] [stdout] | [INFO] [stdout] 115 | #[cfg(feature = "profiler")] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ help: remove the condition [INFO] [stdout] | [INFO] [stdout] = note: no expected values for `feature` [INFO] [stdout] = help: consider adding `profiler` as a feature in `Cargo.toml` [INFO] [stdout] = note: see for more information about checking conditional configuration [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unexpected `cfg` condition value: `profiler` [INFO] [stdout] --> src/btreemap/node/v2.rs:197:15 [INFO] [stdout] | [INFO] [stdout] 197 | #[cfg(feature = "profiler")] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ help: remove the condition [INFO] [stdout] | [INFO] [stdout] = note: no expected values for `feature` [INFO] [stdout] = help: consider adding `profiler` as a feature in `Cargo.toml` [INFO] [stdout] = note: see for more information about checking conditional configuration [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unexpected `cfg` condition value: `profiler` [INFO] [stdout] --> src/btreemap.rs:122:15 [INFO] [stdout] | [INFO] [stdout] 122 | #[cfg(any(feature = "profiler", test))] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ help: remove the condition [INFO] [stdout] | [INFO] [stdout] = note: no expected values for `feature` [INFO] [stdout] = help: consider adding `profiler` as a feature in `Cargo.toml` [INFO] [stdout] = note: see for more information about checking conditional configuration [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unexpected `cfg` condition value: `profiler` [INFO] [stdout] --> src/btreemap.rs:198:15 [INFO] [stdout] | [INFO] [stdout] 198 | #[cfg(any(feature = "profiler", test))] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ help: remove the condition [INFO] [stdout] | [INFO] [stdout] = note: no expected values for `feature` [INFO] [stdout] = help: consider adding `profiler` as a feature in `Cargo.toml` [INFO] [stdout] = note: see for more information about checking conditional configuration [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: relative drop order changing in Rust 2024 [INFO] [stdout] --> src/btreemap.rs:1104:58 [INFO] [stdout] | [INFO] [stdout] 1104 | ... while let Some(cursor) = cursors.pop() { [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] | `cursor` calls a custom destructor [INFO] [stdout] | `cursor` will be dropped later as of Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 1107 | ... node, [INFO] [stdout] | ---- [INFO] [stdout] | | [INFO] [stdout] | `node` calls a custom destructor [INFO] [stdout] | `node` will be dropped later as of Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 1124 | ... } [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: 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] [stderr] error: could not compile `ex3-ic-stable-structures` (lib) due to 1 previous error; 6 warnings emitted [INFO] running `Command { std: "docker" "inspect" "2eca9f99ab5b66be0467d6fed48b6578415113ca9cd904b883c0f3549a35ce38", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "2eca9f99ab5b66be0467d6fed48b6578415113ca9cd904b883c0f3549a35ce38", kill_on_drop: false }` [INFO] [stdout] 2eca9f99ab5b66be0467d6fed48b6578415113ca9cd904b883c0f3549a35ce38