[INFO] fetching crate rustsat-tools 0.3.1...
[INFO] checking rustsat-tools-0.3.1 against master#ab869e094a907cc5d19b4080f22eccaf347f1f95 for pr-129604
[INFO] extracting crate rustsat-tools 0.3.1 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate rustsat-tools 0.3.1 on toolchain ab869e094a907cc5d19b4080f22eccaf347f1f95
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "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-0-tc1/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" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded concolor-clap v0.1.0
[INFO] [stderr]   Downloaded visibility v0.1.0
[INFO] [stderr]   Downloaded rustsat-cadical v0.3.1
[INFO] [stderr]   Downloaded rustsat-minisat v0.3.1
[INFO] [stderr]   Downloaded rustsat v0.5.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d9cc4a5ca20e6a710ad5f9610cfb7959abee4eb0c8a98559f18115cdea9cad0f
[INFO] running `Command { std: "docker" "start" "-a" "d9cc4a5ca20e6a710ad5f9610cfb7959abee4eb0c8a98559f18115cdea9cad0f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d9cc4a5ca20e6a710ad5f9610cfb7959abee4eb0c8a98559f18115cdea9cad0f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d9cc4a5ca20e6a710ad5f9610cfb7959abee4eb0c8a98559f18115cdea9cad0f", kill_on_drop: false }`
[INFO] [stdout] d9cc4a5ca20e6a710ad5f9610cfb7959abee4eb0c8a98559f18115cdea9cad0f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 51c62ace19bf2d54863d4e9a4b616c950ba79df997c177f857289556c45d0bea
[INFO] running `Command { std: "docker" "start" "-a" "51c62ace19bf2d54863d4e9a4b616c950ba79df997c177f857289556c45d0bea", kill_on_drop: false }`
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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: 2 warnings emitted
[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] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 28s
[INFO] running `Command { std: "docker" "inspect" "51c62ace19bf2d54863d4e9a4b616c950ba79df997c177f857289556c45d0bea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "51c62ace19bf2d54863d4e9a4b616c950ba79df997c177f857289556c45d0bea", kill_on_drop: false }`
[INFO] [stdout] 51c62ace19bf2d54863d4e9a4b616c950ba79df997c177f857289556c45d0bea