[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 against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNekrolm%2Frust_fstlib" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Nekrolm/rust_fstlib on toolchain 1f12b9b0fdbe735968ac002792a720f0ba4faca6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "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-4-tc1/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" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e4c0f60c60e057cbe37023e5a8d97fe63f2ecb61ca87f793c147438b2913a60f
[INFO] running `Command { std: "docker" "start" "-a" "e4c0f60c60e057cbe37023e5a8d97fe63f2ecb61ca87f793c147438b2913a60f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e4c0f60c60e057cbe37023e5a8d97fe63f2ecb61ca87f793c147438b2913a60f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e4c0f60c60e057cbe37023e5a8d97fe63f2ecb61ca87f793c147438b2913a60f", kill_on_drop: false }`
[INFO] [stdout] e4c0f60c60e057cbe37023e5a8d97fe63f2ecb61ca87f793c147438b2913a60f
[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" "-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" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 63a39a1a22c204ea157a8fc38994236dffb27e26b82a4999ec947fcbae27ac91
[INFO] running `Command { std: "docker" "start" "-a" "63a39a1a22c204ea157a8fc38994236dffb27e26b82a4999ec947fcbae27ac91", 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: `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: `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: `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::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::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::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 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 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: `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: `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: `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: `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: `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 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 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: 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] 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] warning: 14 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 14 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.09s
[INFO] running `Command { std: "docker" "inspect" "63a39a1a22c204ea157a8fc38994236dffb27e26b82a4999ec947fcbae27ac91", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "63a39a1a22c204ea157a8fc38994236dffb27e26b82a4999ec947fcbae27ac91", kill_on_drop: false }`
[INFO] [stdout] 63a39a1a22c204ea157a8fc38994236dffb27e26b82a4999ec947fcbae27ac91
[INFO] checking Nekrolm/rust_fstlib against try#f9935d29d867449445ee008640ccca1bf1ae0889+rustflags=-Dtail_expr_drop_order for crater-rollup-uwu
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNekrolm%2Frust_fstlib" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Nekrolm/rust_fstlib on toolchain f9935d29d867449445ee008640ccca1bf1ae0889
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f9935d29d867449445ee008640ccca1bf1ae0889" "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-4-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" "+f9935d29d867449445ee008640ccca1bf1ae0889" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+f9935d29d867449445ee008640ccca1bf1ae0889" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 360494f5a9b660c07e05b1b8f5a8bdb07767523443a208af5d3c16ba3a40856e
[INFO] running `Command { std: "docker" "start" "-a" "360494f5a9b660c07e05b1b8f5a8bdb07767523443a208af5d3c16ba3a40856e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "360494f5a9b660c07e05b1b8f5a8bdb07767523443a208af5d3c16ba3a40856e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "360494f5a9b660c07e05b1b8f5a8bdb07767523443a208af5d3c16ba3a40856e", kill_on_drop: false }`
[INFO] [stdout] 360494f5a9b660c07e05b1b8f5a8bdb07767523443a208af5d3c16ba3a40856e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+f9935d29d867449445ee008640ccca1bf1ae0889" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0d30a9f68f65ab9ead7b11bd79a0bc3944935fc5fae83b4c1246bf085a248dcc
[INFO] running `Command { std: "docker" "start" "-a" "0d30a9f68f65ab9ead7b11bd79a0bc3944935fc5fae83b4c1246bf085a248dcc", 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: `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: `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: `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::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::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::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::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::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 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 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: `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 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 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: `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: `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: `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::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: 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] 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 <https://github.com/rust-lang/rust/issues/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/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 <https://github.com/rust-lang/rust/issues/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] [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] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `fstcompose` (bin "fstcompose" test) due to 2 previous errors; 14 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "0d30a9f68f65ab9ead7b11bd79a0bc3944935fc5fae83b4c1246bf085a248dcc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0d30a9f68f65ab9ead7b11bd79a0bc3944935fc5fae83b4c1246bf085a248dcc", kill_on_drop: false }`
[INFO] [stdout] 0d30a9f68f65ab9ead7b11bd79a0bc3944935fc5fae83b4c1246bf085a248dcc