[INFO] updating cached repository shinkwhek/SATsolver
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/shinkwhek/SATsolver
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/shinkwhek/SATsolver" "work/ex/beta-1.38-1/sources/1.37.0/gh/shinkwhek/SATsolver"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/shinkwhek/SATsolver'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/shinkwhek/SATsolver" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/shinkwhek/SATsolver"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/shinkwhek/SATsolver'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] be638a5296a4ad1884c0952d59ed7ba62739ccc9
[INFO] sha for GitHub repo shinkwhek/SATsolver: be638a5296a4ad1884c0952d59ed7ba62739ccc9
[INFO] validating manifest of shinkwhek/SATsolver on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of shinkwhek/SATsolver on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing shinkwhek/SATsolver
[INFO] finished frobbing shinkwhek/SATsolver
[INFO] frobbed toml for shinkwhek/SATsolver written to work/ex/beta-1.38-1/sources/1.37.0/gh/shinkwhek/SATsolver/Cargo.toml
[INFO] started frobbing shinkwhek/SATsolver
[INFO] finished frobbing shinkwhek/SATsolver
[INFO] frobbed toml for shinkwhek/SATsolver written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/shinkwhek/SATsolver/Cargo.toml
[INFO] crate shinkwhek/SATsolver already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] error: the lock file /mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/shinkwhek/SATsolver/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing shinkwhek/SATsolver against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/shinkwhek/SATsolver:/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=warn" "-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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] bbbd51d707566dc6453e4ff2ad009e2a6beef82b481b88b7dbf4616281885d0e
[INFO] running `"docker" "start" "-a" "bbbd51d707566dc6453e4ff2ad009e2a6beef82b481b88b7dbf4616281885d0e"`
[INFO] [stderr]    Compiling atty v0.2.13
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling satsolver v1.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: type alias is never used: `Cnf`
[INFO] [stderr]  --> src/lexer.rs:4:1
[INFO] [stderr]   |
[INFO] [stderr] 4 | type Cnf = Vec<Vec<isize>>;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Lexer`
[INFO] [stderr]  --> src/lexer.rs:6:1
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub struct Lexer;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]  --> src/lexer.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     pub fn new(filename: &str) -> Cnf {
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `parse_line`
[INFO] [stderr]   --> src/lexer.rs:35:5
[INFO] [stderr]    |
[INFO] [stderr] 35 |     fn parse_line(s: &str) -> Vec<isize> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/solver.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 |     pub fn new(cnf: Cnf) -> Dpll {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `solver`
[INFO] [stderr]   --> src/solver.rs:20:5
[INFO] [stderr]    |
[INFO] [stderr] 20 |     pub fn solver(self) -> Option<Self> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `unit_propagation`
[INFO] [stderr]   --> src/solver.rs:43:5
[INFO] [stderr]    |
[INFO] [stderr] 43 |     fn unit_propagation(self) -> Self {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `assign`
[INFO] [stderr]   --> src/solver.rs:50:5
[INFO] [stderr]    |
[INFO] [stderr] 50 |     fn assign(&self, lit: Literal) -> Self {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `retain_lit`
[INFO] [stderr]   --> src/solver.rs:64:1
[INFO] [stderr]    |
[INFO] [stderr] 64 | fn retain_lit(mut cl: Clause, lit: Literal) -> Clause {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `exists_empty_clause`
[INFO] [stderr]   --> src/solver.rs:70:5
[INFO] [stderr]    |
[INFO] [stderr] 70 |     fn exists_empty_clause(&self) -> bool {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_unit_literal`
[INFO] [stderr]   --> src/solver.rs:74:5
[INFO] [stderr]    |
[INFO] [stderr] 74 |     fn get_unit_literal(&self) -> Option<Literal> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `heuristic_select`
[INFO] [stderr]   --> src/solver.rs:81:5
[INFO] [stderr]    |
[INFO] [stderr] 81 |     fn heuristic_select(&self) -> Literal {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `is_empty`
[INFO] [stderr]   --> src/solver.rs:85:5
[INFO] [stderr]    |
[INFO] [stderr] 85 |     fn is_empty(&self) -> bool {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 13.81s
[INFO] running `"docker" "inspect" "bbbd51d707566dc6453e4ff2ad009e2a6beef82b481b88b7dbf4616281885d0e"`
[INFO] running `"docker" "rm" "-f" "bbbd51d707566dc6453e4ff2ad009e2a6beef82b481b88b7dbf4616281885d0e"`
[INFO] [stdout] bbbd51d707566dc6453e4ff2ad009e2a6beef82b481b88b7dbf4616281885d0e
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/shinkwhek/SATsolver:/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=warn" "-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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] d07008bfe3de16f85bdf83ac20eb9ff338969298d3463237238e4927ed8d4372
[INFO] running `"docker" "start" "-a" "d07008bfe3de16f85bdf83ac20eb9ff338969298d3463237238e4927ed8d4372"`
[INFO] [stderr]    Compiling satsolver v1.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: type alias is never used: `Cnf`
[INFO] [stderr]  --> src/lexer.rs:4:1
[INFO] [stderr]   |
[INFO] [stderr] 4 | type Cnf = Vec<Vec<isize>>;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Lexer`
[INFO] [stderr]  --> src/lexer.rs:6:1
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub struct Lexer;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]  --> src/lexer.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     pub fn new(filename: &str) -> Cnf {
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `parse_line`
[INFO] [stderr]   --> src/lexer.rs:35:5
[INFO] [stderr]    |
[INFO] [stderr] 35 |     fn parse_line(s: &str) -> Vec<isize> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.98s
[INFO] running `"docker" "inspect" "d07008bfe3de16f85bdf83ac20eb9ff338969298d3463237238e4927ed8d4372"`
[INFO] running `"docker" "rm" "-f" "d07008bfe3de16f85bdf83ac20eb9ff338969298d3463237238e4927ed8d4372"`
[INFO] [stdout] d07008bfe3de16f85bdf83ac20eb9ff338969298d3463237238e4927ed8d4372
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/shinkwhek/SATsolver:/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=warn" "-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" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] 274b010d3456e47ff4a32eef4e96e480f168673308152486f01cac5c191fa869
[INFO] running `"docker" "start" "-a" "274b010d3456e47ff4a32eef4e96e480f168673308152486f01cac5c191fa869"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/satsolver-3550fb8fcf0e7127
[INFO] [stdout] 
[INFO] [stdout] running 10 tests
[INFO] [stdout] test solver::assign_test ... ok
[INFO] [stdout] test solver::heuristic_select_test ... ok
[INFO] [stdout] test solver::exists_empty_clause_test ... ok
[INFO] [stdout] test solver::get_unit_literal_test ... ok
[INFO] [stdout] test solver::is_empty_test ... ok
[INFO] [stdout] test solver::retain_lit_test ... ok
[INFO] [stdout] test solver::solver_test_1 ... ok
[INFO] [stdout] test solver::unit_propagation_test_1 ... ok
[INFO] [stdout] test solver::unit_propagation_test_2 ... ok
[INFO] [stdout] test solver::solver_test_2 ... ok
[INFO] [stderr]      Running /opt/crater/target/debug/deps/satsolver-39c7b1c3a993b266
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 10 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 10 tests
[INFO] [stdout] test solver::heuristic_select_test ... ok
[INFO] [stdout] test solver::is_empty_test ... ok
[INFO] [stdout] test solver::exists_empty_clause_test ... ok
[INFO] [stdout] test solver::assign_test ... ok
[INFO] [stdout] test solver::get_unit_literal_test ... ok
[INFO] [stdout] test solver::retain_lit_test ... ok
[INFO] [stdout] test solver::solver_test_1 ... ok
[INFO] [stdout] test solver::unit_propagation_test_2 ... ok
[INFO] [stdout] test solver::solver_test_2 ... ok
[INFO] [stdout] test solver::unit_propagation_test_1 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 10 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests satsolver
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "274b010d3456e47ff4a32eef4e96e480f168673308152486f01cac5c191fa869"`
[INFO] running `"docker" "rm" "-f" "274b010d3456e47ff4a32eef4e96e480f168673308152486f01cac5c191fa869"`
[INFO] [stdout] 274b010d3456e47ff4a32eef4e96e480f168673308152486f01cac5c191fa869