[INFO] fetching crate convenient-skiplist 1.0.3... [INFO] checking convenient-skiplist-1.0.3 against try#4d98531622e1718ae0bc3c7a1ab9cd8938428452+rustflags=-Dtail_expr_drop_order for pr-129604 [INFO] extracting crate convenient-skiplist 1.0.3 into /workspace/builds/worker-5-tc2/source [INFO] validating manifest of crates.io crate convenient-skiplist 1.0.3 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 convenient-skiplist 1.0.3 [INFO] finished tweaking crates.io crate convenient-skiplist 1.0.3 [INFO] tweaked toml for crates.io crate convenient-skiplist 1.0.3 written to /workspace/builds/worker-5-tc2/source/Cargo.toml [INFO] crate crates.io crate convenient-skiplist 1.0.3 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" "+4d98531622e1718ae0bc3c7a1ab9cd8938428452" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] abf34666fee35bb1d8d66416ade95a002490a1145a4b707f9a5de92339e42c7c [INFO] running `Command { std: "docker" "start" "-a" "abf34666fee35bb1d8d66416ade95a002490a1145a4b707f9a5de92339e42c7c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "abf34666fee35bb1d8d66416ade95a002490a1145a4b707f9a5de92339e42c7c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "abf34666fee35bb1d8d66416ade95a002490a1145a4b707f9a5de92339e42c7c", kill_on_drop: false }` [INFO] [stdout] abf34666fee35bb1d8d66416ade95a002490a1145a4b707f9a5de92339e42c7c [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] db0df810a64e3913caf2c48099ae2041b3b73be9ff2ac9659bfd23ba91ee9e23 [INFO] running `Command { std: "docker" "start" "-a" "db0df810a64e3913caf2c48099ae2041b3b73be9ff2ac9659bfd23ba91ee9e23", kill_on_drop: false }` [INFO] [stderr] Compiling autocfg v1.0.0 [INFO] [stderr] Compiling libc v0.2.74 [INFO] [stderr] Checking cfg-if v0.1.10 [INFO] [stderr] Checking lazy_static v1.4.0 [INFO] [stderr] Compiling proc-macro2 v1.0.19 [INFO] [stderr] Compiling serde v1.0.114 [INFO] [stderr] Compiling byteorder v1.3.4 [INFO] [stderr] Compiling maybe-uninit v2.0.0 [INFO] [stderr] Compiling unicode-xid v0.2.1 [INFO] [stderr] Compiling semver-parser v0.7.0 [INFO] [stderr] Compiling memchr v2.3.3 [INFO] [stderr] Compiling semver v0.9.0 [INFO] [stderr] Compiling ryu v1.0.5 [INFO] [stderr] Compiling getrandom v0.1.14 [INFO] [stderr] Compiling crossbeam-utils v0.7.2 [INFO] [stderr] Compiling memoffset v0.5.5 [INFO] [stderr] Compiling crossbeam-epoch v0.8.2 [INFO] [stderr] Compiling syn v1.0.38 [INFO] [stderr] Compiling rustc_version v0.2.3 [INFO] [stderr] Checking scopeguard v1.1.0 [INFO] [stderr] Compiling rayon-core v1.7.1 [INFO] [stderr] Compiling quote v1.0.7 [INFO] [stderr] Compiling cast v0.2.3 [INFO] [stderr] Compiling num-traits v0.2.12 [INFO] [stderr] Compiling serde_json v1.0.57 [INFO] [stderr] Checking itoa v0.4.6 [INFO] [stderr] Checking either v1.5.3 [INFO] [stderr] Compiling bitflags v1.2.1 [INFO] [stderr] Checking rand_core v0.5.1 [INFO] [stderr] Checking num_cpus v1.13.0 [INFO] [stderr] Checking regex-automata v0.1.9 [INFO] [stderr] Checking crossbeam-queue v0.2.3 [INFO] [stderr] Compiling rayon v1.3.1 [INFO] [stderr] Checking unicode-width v0.1.8 [INFO] [stderr] Compiling serde_derive v1.0.114 [INFO] [stderr] Checking ppv-lite86 v0.2.8 [INFO] [stderr] Checking textwrap v0.11.0 [INFO] [stderr] Checking crossbeam-deque v0.7.3 [INFO] [stderr] Checking itertools v0.9.0 [INFO] [stderr] Checking csv-core v0.1.10 [INFO] [stderr] Checking half v1.6.0 [INFO] [stderr] Checking regex-syntax v0.6.18 [INFO] [stderr] Checking rand_chacha v0.2.2 [INFO] [stderr] Checking walkdir v2.3.1 [INFO] [stderr] Checking rand v0.7.3 [INFO] [stderr] Checking clap v2.33.2 [INFO] [stderr] Checking plotters v0.2.15 [INFO] [stderr] Checking criterion-plot v0.4.3 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking fxhash v0.2.1 [INFO] [stderr] Checking oorandom v11.1.2 [INFO] [stderr] Checking convenient-skiplist v1.0.3 (/opt/rustwide/workdir) [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/lib.rs:761:13 [INFO] [stdout] | [INFO] [stdout] 761 | for mut nw in frontier.into_iter().rev().skip(1) { [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: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking regex v1.3.9 [INFO] [stderr] Checking bstr v0.2.13 [INFO] [stderr] Checking serde_cbor v0.11.1 [INFO] [stderr] Checking csv v1.1.3 [INFO] [stderr] Checking tinytemplate v1.1.0 [INFO] [stderr] Compiling checkers-macros v0.5.1 [INFO] [stderr] Checking checkers v0.5.6 [INFO] [stderr] Checking criterion v0.3.3 [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/lib.rs:761:13 [INFO] [stdout] | [INFO] [stdout] 761 | for mut nw in frontier.into_iter().rev().skip(1) { [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] 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/iter.rs:739:13 [INFO] [stdout] | [INFO] [stdout] 737 | fn sk_range>(range: R) -> Vec { [INFO] [stdout] | -------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 738 | let sk = SkipList::from(0..20); [INFO] [stdout] | -- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 739 | sk.index_range(range).cloned().collect() [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/iter.rs:744:13 [INFO] [stdout] | [INFO] [stdout] 742 | fn vec_range>(range: R) -> Vec { [INFO] [stdout] | -------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 743 | let mut vec: Vec<_> = (0..20).collect(); [INFO] [stdout] 744 | vec.drain(range).collect() [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] error: aborting due to 2 previous errors; 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `convenient-skiplist` (lib test) due to 3 previous errors; 1 warning emitted [INFO] running `Command { std: "docker" "inspect" "db0df810a64e3913caf2c48099ae2041b3b73be9ff2ac9659bfd23ba91ee9e23", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "db0df810a64e3913caf2c48099ae2041b3b73be9ff2ac9659bfd23ba91ee9e23", kill_on_drop: false }` [INFO] [stdout] db0df810a64e3913caf2c48099ae2041b3b73be9ff2ac9659bfd23ba91ee9e23