[INFO] cloning repository https://github.com/Nekrolm/rust_fstlib [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Nekrolm/rust_fstlib" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNekrolm%2Frust_fstlib", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNekrolm%2Frust_fstlib'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 217cc41c59c25f93ed0bdf346cf9e1cac9f4f7eb [INFO] checking Nekrolm/rust_fstlib/217cc41c59c25f93ed0bdf346cf9e1cac9f4f7eb against try#4d98531622e1718ae0bc3c7a1ab9cd8938428452+rustflags=-Dtail_expr_drop_order for pr-129604 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNekrolm%2Frust_fstlib" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/Nekrolm/rust_fstlib 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 git repo https://github.com/Nekrolm/rust_fstlib [INFO] finished tweaking git repo https://github.com/Nekrolm/rust_fstlib [INFO] tweaked toml for git repo https://github.com/Nekrolm/rust_fstlib written to /workspace/builds/worker-0-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/Nekrolm/rust_fstlib 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-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] e4473cbf1e9cc4b71280d6966efee3715409d109c728802d857b7c46b5861be7 [INFO] running `Command { std: "docker" "start" "-a" "e4473cbf1e9cc4b71280d6966efee3715409d109c728802d857b7c46b5861be7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "e4473cbf1e9cc4b71280d6966efee3715409d109c728802d857b7c46b5861be7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e4473cbf1e9cc4b71280d6966efee3715409d109c728802d857b7c46b5861be7", kill_on_drop: false }` [INFO] [stdout] e4473cbf1e9cc4b71280d6966efee3715409d109c728802d857b7c46b5861be7 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] e88a2c55504d2f4c9d012bd0e19819e55c5c3a89cc4417ee9590e518d150e323 [INFO] running `Command { std: "docker" "start" "-a" "e88a2c55504d2f4c9d012bd0e19819e55c5c3a89cc4417ee9590e518d150e323", kill_on_drop: false }` [INFO] [stderr] Checking fstcompose v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `std::error::Error` [INFO] [stdout] --> src/fst/generic/const_fst.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | use std::error::Error; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::io` [INFO] [stdout] --> src/fst/generic/const_fst.rs:6:5 [INFO] [stdout] | [INFO] [stdout] 6 | use std::io; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `traits::IterableFst as Fst` [INFO] [stdout] --> src/fst/generic/mod.rs:16:9 [INFO] [stdout] | [INFO] [stdout] 16 | pub use traits::IterableFst as Fst; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `traits::MutableFst` [INFO] [stdout] --> src/fst/generic/mod.rs:17:9 [INFO] [stdout] | [INFO] [stdout] 17 | pub use traits::MutableFst; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `traits::ArcIterator as ArcIteratorTrait` [INFO] [stdout] --> src/fst/generic/mod.rs:18:9 [INFO] [stdout] | [INFO] [stdout] 18 | pub use traits::ArcIterator as ArcIteratorTrait; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `traits::StateIterator as StateIteratorTrait` [INFO] [stdout] --> src/fst/generic/mod.rs:19:9 [INFO] [stdout] | [INFO] [stdout] 19 | pub use traits::StateIterator as StateIteratorTrait; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `traits::Weight as WeightTraits` [INFO] [stdout] --> src/fst/generic/mod.rs:20:9 [INFO] [stdout] | [INFO] [stdout] 20 | pub use traits::Weight as WeightTraits; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `traits::Arc as ArcTraits` [INFO] [stdout] --> src/fst/generic/mod.rs:21:9 [INFO] [stdout] | [INFO] [stdout] 21 | pub use traits::Arc as ArcTraits; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `ErrorKind` and `Error` [INFO] [stdout] --> src/fst/std/binary_io.rs:3:28 [INFO] [stdout] | [INFO] [stdout] 3 | use std::io::{Read, Write, Error, ErrorKind}; [INFO] [stdout] | ^^^^^ ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `super::ConstFst` [INFO] [stdout] --> src/fst/std/binary_io.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 7 | use super::ConstFst; [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::intrinsics::transmute` [INFO] [stdout] --> src/fst/std/binary_io.rs:12:5 [INFO] [stdout] | [INFO] [stdout] 12 | use std::intrinsics::transmute; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `binary_io::*` [INFO] [stdout] --> src/fst/std/mod.rs:4:9 [INFO] [stdout] | [INFO] [stdout] 4 | pub use binary_io::*; [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::error::Error` [INFO] [stdout] --> src/fst/generic/const_fst.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | use std::error::Error; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::io` [INFO] [stdout] --> src/fst/generic/const_fst.rs:6:5 [INFO] [stdout] | [INFO] [stdout] 6 | use std::io; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `traits::IterableFst as Fst` [INFO] [stdout] --> src/fst/generic/mod.rs:16:9 [INFO] [stdout] | [INFO] [stdout] 16 | pub use traits::IterableFst as Fst; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `traits::MutableFst` [INFO] [stdout] --> src/fst/generic/mod.rs:17:9 [INFO] [stdout] | [INFO] [stdout] 17 | pub use traits::MutableFst; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `traits::ArcIterator as ArcIteratorTrait` [INFO] [stdout] --> src/fst/generic/mod.rs:18:9 [INFO] [stdout] | [INFO] [stdout] 18 | pub use traits::ArcIterator as ArcIteratorTrait; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `traits::StateIterator as StateIteratorTrait` [INFO] [stdout] --> src/fst/generic/mod.rs:19:9 [INFO] [stdout] | [INFO] [stdout] 19 | pub use traits::StateIterator as StateIteratorTrait; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `traits::Weight as WeightTraits` [INFO] [stdout] --> src/fst/generic/mod.rs:20:9 [INFO] [stdout] | [INFO] [stdout] 20 | pub use traits::Weight as WeightTraits; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `traits::Arc as ArcTraits` [INFO] [stdout] --> src/fst/generic/mod.rs:21:9 [INFO] [stdout] | [INFO] [stdout] 21 | pub use traits::Arc as ArcTraits; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `ErrorKind` and `Error` [INFO] [stdout] --> src/fst/std/binary_io.rs:3:28 [INFO] [stdout] | [INFO] [stdout] 3 | use std::io::{Read, Write, Error, ErrorKind}; [INFO] [stdout] | ^^^^^ ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `super::ConstFst` [INFO] [stdout] --> src/fst/std/binary_io.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 7 | use super::ConstFst; [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::intrinsics::transmute` [INFO] [stdout] --> src/fst/std/binary_io.rs:12:5 [INFO] [stdout] | [INFO] [stdout] 12 | use std::intrinsics::transmute; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `binary_io::*` [INFO] [stdout] --> src/fst/std/mod.rs:4:9 [INFO] [stdout] | [INFO] [stdout] 4 | pub use binary_io::*; [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/fst/std/binary_io.rs:65:9 [INFO] [stdout] | [INFO] [stdout] 65 | let mut arcs = vec![Arc::new(0,0,Weight::new(0.),0); num_arcs]; [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: unused variable: `state` [INFO] [stdout] --> src/fst/std/binary_io.rs:90:18 [INFO] [stdout] | [INFO] [stdout] 90 | for state in 0..num_states { [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_state` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` 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/fst/std/binary_io.rs:96:22 [INFO] [stdout] | [INFO] [stdout] 94 | Err(why) => return Err(why) [INFO] [stdout] | --- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 95 | }; [INFO] [stdout] 96 | read_arcs(file,num_arcs as usize).and_then(|arcs|{ [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: aborting due to 1 previous error; 14 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `fstcompose` (bin "fstcompose" test) due to 2 previous errors; 14 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/fst/std/binary_io.rs:65:9 [INFO] [stdout] | [INFO] [stdout] 65 | let mut arcs = vec![Arc::new(0,0,Weight::new(0.),0); num_arcs]; [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: unused variable: `state` [INFO] [stdout] --> src/fst/std/binary_io.rs:90:18 [INFO] [stdout] | [INFO] [stdout] 90 | for state in 0..num_states { [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_state` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` 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/fst/std/binary_io.rs:96:22 [INFO] [stdout] | [INFO] [stdout] 94 | Err(why) => return Err(why) [INFO] [stdout] | --- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 95 | }; [INFO] [stdout] 96 | read_arcs(file,num_arcs as usize).and_then(|arcs|{ [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: aborting due to 1 previous error; 14 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `fstcompose` (bin "fstcompose") due to 2 previous errors; 14 warnings emitted [INFO] running `Command { std: "docker" "inspect" "e88a2c55504d2f4c9d012bd0e19819e55c5c3a89cc4417ee9590e518d150e323", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e88a2c55504d2f4c9d012bd0e19819e55c5c3a89cc4417ee9590e518d150e323", kill_on_drop: false }` [INFO] [stdout] e88a2c55504d2f4c9d012bd0e19819e55c5c3a89cc4417ee9590e518d150e323