[INFO] cloning repository https://github.com/g2xpf/tautology-checker
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/g2xpf/tautology-checker" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fg2xpf%2Ftautology-checker", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fg2xpf%2Ftautology-checker'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c5876982e02d620472ed187516d5fda8ae8fa6ec
[INFO] checking g2xpf/tautology-checker against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fg2xpf%2Ftautology-checker" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/g2xpf/tautology-checker 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/g2xpf/tautology-checker
[INFO] finished tweaking git repo https://github.com/g2xpf/tautology-checker
[INFO] tweaked toml for git repo https://github.com/g2xpf/tautology-checker written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/g2xpf/tautology-checker 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-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 9fedea2028843552bf3df029b965e253f849b9a2867e04b57698bf9fb8cd3c5a
[INFO] running `Command { std: "docker" "start" "-a" "9fedea2028843552bf3df029b965e253f849b9a2867e04b57698bf9fb8cd3c5a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9fedea2028843552bf3df029b965e253f849b9a2867e04b57698bf9fb8cd3c5a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9fedea2028843552bf3df029b965e253f849b9a2867e04b57698bf9fb8cd3c5a", kill_on_drop: false }`
[INFO] [stdout] 9fedea2028843552bf3df029b965e253f849b9a2867e04b57698bf9fb8cd3c5a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] a58539802bf7aeb0807dcb8a0995892a5548251eb48574d8f685b0f08dd9f35f
[INFO] running `Command { std: "docker" "start" "-a" "a58539802bf7aeb0807dcb8a0995892a5548251eb48574d8f685b0f08dd9f35f", kill_on_drop: false }`
[INFO] [stderr]     Checking logic-solver v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/evaluator.rs:17:18
[INFO] [stdout]    |
[INFO] [stdout] 17 |     NotTautology(BitPairs),
[INFO] [stdout]    |     ------------ ^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `EvalResult` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 17 |     NotTautology(()),
[INFO] [stdout]    |                  ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `op` is never read
[INFO] [stdout]    --> src/parser.rs:143:9
[INFO] [stdout]     |
[INFO] [stdout] 142 | pub struct UnOpExpr {
[INFO] [stdout]     |            -------- field in this struct
[INFO] [stdout] 143 |     pub op: UnOp,
[INFO] [stdout]     |         ^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `UnOpExpr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/evaluator.rs:17:18
[INFO] [stdout]    |
[INFO] [stdout] 17 |     NotTautology(BitPairs),
[INFO] [stdout]    |     ------------ ^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `EvalResult` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 17 |     NotTautology(()),
[INFO] [stdout]    |                  ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `op` is never read
[INFO] [stdout]    --> src/parser.rs:143:9
[INFO] [stdout]     |
[INFO] [stdout] 142 | pub struct UnOpExpr {
[INFO] [stdout]     |            -------- field in this struct
[INFO] [stdout] 143 |     pub op: UnOp,
[INFO] [stdout]     |         ^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `UnOpExpr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.09s
[INFO] running `Command { std: "docker" "inspect" "a58539802bf7aeb0807dcb8a0995892a5548251eb48574d8f685b0f08dd9f35f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a58539802bf7aeb0807dcb8a0995892a5548251eb48574d8f685b0f08dd9f35f", kill_on_drop: false }`
[INFO] [stdout] a58539802bf7aeb0807dcb8a0995892a5548251eb48574d8f685b0f08dd9f35f