[INFO] updating cached repository https://github.com/rolag/ruSAT
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 5f450c9d7bffd15ead893c0688591dd24f41fb97
[INFO] testing rolag/ruSAT against beta-2019-09-28 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Frolag%2FruSAT" "work/builds/worker-6/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rolag/ruSAT on toolchain beta-2019-09-28
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/rolag/ruSAT
[INFO] finished tweaking git repo https://github.com/rolag/ruSAT
[INFO] tweaked toml for git repo https://github.com/rolag/ruSAT written to work/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/rolag/ruSAT already has a lockfile, it will not be regenerated
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-6/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2019-09-28" "build" "--frozen"`
[INFO] [stdout] 978bedd0891031c509f9360f35a49337681cd16915d3f4f132f7f70ee77fb68b
[INFO] running `"docker" "start" "-a" "978bedd0891031c509f9360f35a49337681cd16915d3f4f132f7f70ee77fb68b"`
[INFO] [stderr]    Compiling rusat v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.00s
[INFO] running `"docker" "inspect" "978bedd0891031c509f9360f35a49337681cd16915d3f4f132f7f70ee77fb68b"`
[INFO] running `"docker" "rm" "-f" "978bedd0891031c509f9360f35a49337681cd16915d3f4f132f7f70ee77fb68b"`
[INFO] [stdout] 978bedd0891031c509f9360f35a49337681cd16915d3f4f132f7f70ee77fb68b
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-6/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2019-09-28" "test" "--frozen" "--no-run"`
[INFO] [stdout] d249b9b475681fdfc5eaf22f7a574b4013d03937091555b0e8da1aaee9868f7f
[INFO] running `"docker" "start" "-a" "d249b9b475681fdfc5eaf22f7a574b4013d03937091555b0e8da1aaee9868f7f"`
[INFO] [stderr]    Compiling rusat v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0599]: no method named `is_tautology` found for type `cnf_system::CNFClause` in the current scope
[INFO] [stderr]   --> src/cnf_system.rs:66:20
[INFO] [stderr]    |
[INFO] [stderr] 14 | pub struct CNFClause {
[INFO] [stderr]    | -------------------- method `is_tautology` not found for this
[INFO] [stderr] ...
[INFO] [stderr] 66 |     assert!(clause.is_tautology());
[INFO] [stderr]    |                    ^^^^^^^^^^^^ method not found in `cnf_system::CNFClause`
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `is_tautology` found for type `cnf_system::CNFClause` in the current scope
[INFO] [stderr]    --> src/cnf_system.rs:102:21
[INFO] [stderr]     |
[INFO] [stderr] 14  | pub struct CNFClause {
[INFO] [stderr]     | -------------------- method `is_tautology` not found for this
[INFO] [stderr] ...
[INFO] [stderr] 102 |     assert!(!clause.is_tautology());
[INFO] [stderr]     |                     ^^^^^^^^^^^^ method not found in `cnf_system::CNFClause`
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `is_tautology` found for type `cnf_system::CNFClause` in the current scope
[INFO] [stderr]    --> src/cnf_system.rs:103:22
[INFO] [stderr]     |
[INFO] [stderr] 14  | pub struct CNFClause {
[INFO] [stderr]     | -------------------- method `is_tautology` not found for this
[INFO] [stderr] ...
[INFO] [stderr] 103 |     assert!(!clause2.is_tautology());
[INFO] [stderr]     |                      ^^^^^^^^^^^^ method not found in `cnf_system::CNFClause`
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `is_tautology` found for type `cnf_system::CNFClause` in the current scope
[INFO] [stderr]    --> src/cnf_system.rs:110:20
[INFO] [stderr]     |
[INFO] [stderr] 14  | pub struct CNFClause {
[INFO] [stderr]     | -------------------- method `is_tautology` not found for this
[INFO] [stderr] ...
[INFO] [stderr] 110 |     assert!(clause.is_tautology());
[INFO] [stderr]     |                    ^^^^^^^^^^^^ method not found in `cnf_system::CNFClause`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 4 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0599`.
[INFO] [stderr] error: could not compile `rusat`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "d249b9b475681fdfc5eaf22f7a574b4013d03937091555b0e8da1aaee9868f7f"`
[INFO] running `"docker" "rm" "-f" "d249b9b475681fdfc5eaf22f7a574b4013d03937091555b0e8da1aaee9868f7f"`
[INFO] [stdout] d249b9b475681fdfc5eaf22f7a574b4013d03937091555b0e8da1aaee9868f7f