[INFO] updating cached repository fangyi-zhou/sat-solver
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/fangyi-zhou/sat-solver
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/fangyi-zhou/sat-solver" "work/ex/pr-58592/sources/master#f66e4697ae286985ddefc53c3a047614568458bb/gh/fangyi-zhou/sat-solver"`
[INFO] [stderr] Cloning into 'work/ex/pr-58592/sources/master#f66e4697ae286985ddefc53c3a047614568458bb/gh/fangyi-zhou/sat-solver'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/fangyi-zhou/sat-solver" "work/ex/pr-58592/sources/try#c3b22200e6f5b70eb1f99ae6944d989ae17a458a/gh/fangyi-zhou/sat-solver"`
[INFO] [stderr] Cloning into 'work/ex/pr-58592/sources/try#c3b22200e6f5b70eb1f99ae6944d989ae17a458a/gh/fangyi-zhou/sat-solver'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 94465e202e71071d0c6c0473b2fcc96d4c1f21a4
[INFO] sha for GitHub repo fangyi-zhou/sat-solver: 94465e202e71071d0c6c0473b2fcc96d4c1f21a4
[INFO] validating manifest of fangyi-zhou/sat-solver on toolchain master#f66e4697ae286985ddefc53c3a047614568458bb
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+f66e4697ae286985ddefc53c3a047614568458bb-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of fangyi-zhou/sat-solver on toolchain try#c3b22200e6f5b70eb1f99ae6944d989ae17a458a
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c3b22200e6f5b70eb1f99ae6944d989ae17a458a-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing fangyi-zhou/sat-solver
[INFO] finished frobbing fangyi-zhou/sat-solver
[INFO] frobbed toml for fangyi-zhou/sat-solver written to work/ex/pr-58592/sources/master#f66e4697ae286985ddefc53c3a047614568458bb/gh/fangyi-zhou/sat-solver/Cargo.toml
[INFO] started frobbing fangyi-zhou/sat-solver
[INFO] finished frobbing fangyi-zhou/sat-solver
[INFO] frobbed toml for fangyi-zhou/sat-solver written to work/ex/pr-58592/sources/try#c3b22200e6f5b70eb1f99ae6944d989ae17a458a/gh/fangyi-zhou/sat-solver/Cargo.toml
[INFO] crate fangyi-zhou/sat-solver has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+f66e4697ae286985ddefc53c3a047614568458bb-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c3b22200e6f5b70eb1f99ae6944d989ae17a458a-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking fangyi-zhou/sat-solver against master#f66e4697ae286985ddefc53c3a047614568458bb for pr-58592
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-58592/worker-1/master#f66e4697ae286985ddefc53c3a047614568458bb:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-58592/sources/master#f66e4697ae286985ddefc53c3a047614568458bb/gh/fangyi-zhou/sat-solver:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+f66e4697ae286985ddefc53c3a047614568458bb-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] cbf4f5e29191a45d68666a8d5aa992a3b1f72c0008693e7c8899e98599e863b3
[INFO] running `"docker" "start" "-a" "cbf4f5e29191a45d68666a8d5aa992a3b1f72c0008693e7c8899e98599e863b3"`
[INFO] [stderr]     Checking sat-solver v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variant is never constructed: `Var`
[INFO] [stderr]  --> src/expr.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 |     Var(String),
[INFO] [stderr]   |     ^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `And`
[INFO] [stderr]  --> src/expr.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 |     And(Box<Expr>, Box<Expr>),
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Or`
[INFO] [stderr]  --> src/expr.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 |     Or(Box<Expr>, Box<Expr>),
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `If`
[INFO] [stderr]  --> src/expr.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     If(Box<Expr>, Box<Expr>),
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Iff`
[INFO] [stderr]  --> src/expr.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 |     Iff(Box<Expr>, Box<Expr>),
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Not`
[INFO] [stderr]   --> src/expr.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     Not(Box<Expr>),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Lit`
[INFO] [stderr]   --> src/expr.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 |     Lit(bool)
[INFO] [stderr]    |     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `eval`
[INFO] [stderr]   --> src/expr.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 |     fn eval(&self, dict: &HashMap<String, bool>) -> bool {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.59s
[INFO] running `"docker" "inspect" "cbf4f5e29191a45d68666a8d5aa992a3b1f72c0008693e7c8899e98599e863b3"`
[INFO] running `"docker" "rm" "-f" "cbf4f5e29191a45d68666a8d5aa992a3b1f72c0008693e7c8899e98599e863b3"`
[INFO] [stdout] cbf4f5e29191a45d68666a8d5aa992a3b1f72c0008693e7c8899e98599e863b3