[INFO] fetching crate rustsat-tools 0.3.1...
[INFO] checking rustsat-tools-0.3.1 against try#7014e13d5becc920d4bea3cd87942c8a13d359bf+rustflags=-Dtail_expr_drop_order for pr-129864
[INFO] extracting crate rustsat-tools 0.3.1 into /workspace/builds/worker-1-tc2/source
[INFO] validating manifest of crates.io crate rustsat-tools 0.3.1 on toolchain 7014e13d5becc920d4bea3cd87942c8a13d359bf
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rustsat-tools 0.3.1
[INFO] finished tweaking crates.io crate rustsat-tools 0.3.1
[INFO] tweaked toml for crates.io crate rustsat-tools 0.3.1 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] crate crates.io crate rustsat-tools 0.3.1 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" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "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-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e03e5f818dbf951670a17ef51db743f7c95f71389a40f4f7e24d6d1d8a2eb646
[INFO] running `Command { std: "docker" "start" "-a" "e03e5f818dbf951670a17ef51db743f7c95f71389a40f4f7e24d6d1d8a2eb646", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e03e5f818dbf951670a17ef51db743f7c95f71389a40f4f7e24d6d1d8a2eb646", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e03e5f818dbf951670a17ef51db743f7c95f71389a40f4f7e24d6d1d8a2eb646", kill_on_drop: false }`
[INFO] [stdout] e03e5f818dbf951670a17ef51db743f7c95f71389a40f4f7e24d6d1d8a2eb646
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ee30872bb613e23f56f393cb3b9b269143dc13b7286b129afb3b5beaf628acce
[INFO] running `Command { std: "docker" "start" "-a" "ee30872bb613e23f56f393cb3b9b269143dc13b7286b129afb3b5beaf628acce", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.155
[INFO] [stderr]    Compiling proc-macro2 v1.0.85
[INFO] [stderr]    Compiling pkg-config v0.3.30
[INFO] [stderr]    Compiling stable_deref_trait v1.2.0
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[INFO] [stderr]    Compiling writeable v0.5.5
[INFO] [stderr]    Compiling icu_locid_transform_data v1.5.0
[INFO] [stderr]    Compiling icu_properties_data v1.5.0
[INFO] [stderr]    Compiling utf8_iter v1.0.4
[INFO] [stderr]    Compiling smallvec v1.13.2
[INFO] [stderr]    Compiling utf16_iter v1.0.5
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[INFO] [stderr]    Compiling icu_normalizer_data v1.5.0
[INFO] [stderr]     Checking utf8parse v0.2.2
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]     Checking is_terminal_polyfill v1.70.0
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[INFO] [stderr]    Compiling zerofrom v0.1.4
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[INFO] [stderr]     Checking clap v4.5.7
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[INFO] [stderr]    Compiling icu_locid v1.5.0
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[INFO] [stderr]    Compiling icu_locid_transform v1.5.0
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[INFO] [stderr]     Checking flate2 v1.0.30
[INFO] [stderr]     Checking rustsat v0.5.1
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[INFO] [stderr]    Compiling rustsat-minisat v0.3.1
[INFO] [stderr]     Checking rustsat-tools v0.3.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variant `Unary` is never constructed
[INFO] [stdout]   --> src/encodings/clustering.rs:52:5
[INFO] [stdout]    |
[INFO] [stdout] 48 | enum VarId {
[INFO] [stdout]    |      ----- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 52 |     Unary(u32, u32),
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `VarId` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `variant` is never read
[INFO] [stdout]    --> src/encodings/clustering.rs:152:5
[INFO] [stdout]     |
[INFO] [stdout] 150 | pub struct Encoding {
[INFO] [stdout]     |            -------- field in this struct
[INFO] [stdout] 151 |     similarities: Vec<Similarity>,
[INFO] [stdout] 152 |     variant: Variant,
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Unary` is never constructed
[INFO] [stdout]   --> src/encodings/clustering.rs:52:5
[INFO] [stdout]    |
[INFO] [stdout] 48 | enum VarId {
[INFO] [stdout]    |      ----- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 52 |     Unary(u32, u32),
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `VarId` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `variant` is never read
[INFO] [stdout]    --> src/encodings/clustering.rs:152:5
[INFO] [stdout]     |
[INFO] [stdout] 150 | pub struct Encoding {
[INFO] [stdout]     |            -------- field in this struct
[INFO] [stdout] 151 |     similarities: Vec<Similarity>,
[INFO] [stdout] 152 |     variant: Variant,
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 51.96s
[INFO] running `Command { std: "docker" "inspect" "ee30872bb613e23f56f393cb3b9b269143dc13b7286b129afb3b5beaf628acce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ee30872bb613e23f56f393cb3b9b269143dc13b7286b129afb3b5beaf628acce", kill_on_drop: false }`
[INFO] [stdout] ee30872bb613e23f56f393cb3b9b269143dc13b7286b129afb3b5beaf628acce