Dec 19 10:18:32.983 INFO checking remexre/datalog against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 10:18:32.983 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-6/master#d99a320cba42f661aebfa1293b7b2ec3603dda75:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/gh/remexre/datalog:/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" "+d99a320cba42f661aebfa1293b7b2ec3603dda75-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 10:18:33.598 INFO [stdout] f9660ce6d5e723774abaf87e7f8e32b10b6a81574e5f8fe99f28c6b481382185
Dec 19 10:18:33.600 INFO running `"docker" "start" "-a" "f9660ce6d5e723774abaf87e7f8e32b10b6a81574e5f8fe99f28c6b481382185"`
Dec 19 10:18:35.896 INFO [stderr]     Checking bytecount v0.1.7
Dec 19 10:18:35.896 INFO [stderr]     Checking spin v0.4.6
Dec 19 10:18:35.896 INFO [stderr]    Compiling pest v1.0.2
Dec 19 10:18:35.896 INFO [stderr]     Checking try_opt v0.1.1
Dec 19 10:18:35.924 INFO [stderr]     Checking termion v1.5.1
Dec 19 10:18:35.926 INFO [stderr]     Checking proptest v0.4.2
Dec 19 10:18:35.926 INFO [stderr]     Checking regex v0.2.5
Dec 19 10:18:36.808 INFO [stderr]     Checking error-chain v0.11.0
Dec 19 10:18:37.176 INFO [stderr]     Checking symbol v0.1.1
Dec 19 10:18:39.844 INFO [stderr]    Compiling pest_derive v1.0.2
Dec 19 10:18:40.121 INFO [stderr]     Checking liner v0.4.4
Dec 19 10:18:40.121 INFO [stderr]     Checking sparkly v0.1.4
Dec 19 10:18:48.981 INFO [stderr]     Checking datalog v0.1.0 (/opt/crater/workdir)
Dec 19 10:18:49.736 INFO [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
Dec 19 10:18:49.736 INFO [stderr]   --> src/errors.rs:9:1
Dec 19 10:18:49.736 INFO [stderr]    |
Dec 19 10:18:49.736 INFO [stderr] 9  | / error_chain! {
Dec 19 10:18:49.736 INFO [stderr] 10 | |     errors {
Dec 19 10:18:49.736 INFO [stderr] 11 | |         NoSuchClause(clause: Clause) {
Dec 19 10:18:49.736 INFO [stderr] 12 | |             description("A non-existent clause was found")
Dec 19 10:18:49.736 INFO [stderr] ...  |
Dec 19 10:18:49.736 INFO [stderr] 21 | |     }
Dec 19 10:18:49.736 INFO [stderr] 22 | | }
Dec 19 10:18:49.736 INFO [stderr]    | |_^
Dec 19 10:18:49.736 INFO [stderr]    |
Dec 19 10:18:49.736 INFO [stderr]    = note: #[warn(deprecated)] on by default
Dec 19 10:18:49.736 INFO [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Dec 19 10:18:49.736 INFO [stderr] 
Dec 19 10:18:49.790 INFO [stderr] warning: unused variable: `lv`
Dec 19 10:18:49.790 INFO [stderr]   --> src/ast/pattern_match.rs:32:24
Dec 19 10:18:49.790 INFO [stderr]    |
Dec 19 10:18:49.790 INFO [stderr] 32 |             (Term::Var(lv), Term::Var(rv)) => {}
Dec 19 10:18:49.790 INFO [stderr]    |                        ^^ help: consider using `_lv` instead
Dec 19 10:18:49.790 INFO [stderr]    |
Dec 19 10:18:49.790 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 19 10:18:49.790 INFO [stderr] 
Dec 19 10:18:49.790 INFO [stderr] warning: unused variable: `rv`
Dec 19 10:18:49.790 INFO [stderr]   --> src/ast/pattern_match.rs:32:39
Dec 19 10:18:49.790 INFO [stderr]    |
Dec 19 10:18:49.790 INFO [stderr] 32 |             (Term::Var(lv), Term::Var(rv)) => {}
Dec 19 10:18:49.790 INFO [stderr]    |                                       ^^ help: consider using `_rv` instead
Dec 19 10:18:49.790 INFO [stderr] 
Dec 19 10:18:49.792 INFO [stderr] warning: unused variable: `other`
Dec 19 10:18:49.792 INFO [stderr]  --> src/ast/eq.rs:5:28
Dec 19 10:18:49.792 INFO [stderr]   |
Dec 19 10:18:49.792 INFO [stderr] 5 |     pub fn alpha_eq(&self, other: &Clause) -> bool {
Dec 19 10:18:49.792 INFO [stderr]   |                            ^^^^^ help: consider using `_other` instead
Dec 19 10:18:49.792 INFO [stderr] 
Dec 19 10:18:49.792 INFO [stderr] warning: unused variable: `body`
Dec 19 10:18:49.792 INFO [stderr]    --> src/ast/mod.rs:119:26
Dec 19 10:18:49.792 INFO [stderr]     |
Dec 19 10:18:49.792 INFO [stderr] 119 |         let Clause(head, body) = self.clone();
Dec 19 10:18:49.792 INFO [stderr]     |                          ^^^^ help: consider using `_body` instead
Dec 19 10:18:49.792 INFO [stderr] 
Dec 19 10:18:49.792 INFO [stderr] warning: unused variable: `name`
Dec 19 10:18:49.792 INFO [stderr]    --> src/ast/mod.rs:123:21
Dec 19 10:18:49.792 INFO [stderr]     |
Dec 19 10:18:49.792 INFO [stderr] 123 |         let Literal(name, mut hargs) = head;
Dec 19 10:18:49.792 INFO [stderr]     |                     ^^^^ help: consider using `_name` instead
Dec 19 10:18:49.792 INFO [stderr] 
Dec 19 10:18:49.792 INFO [stderr] warning: unused variable: `clause`
Dec 19 10:18:49.792 INFO [stderr]    --> src/naive/mod.rs:103:34
Dec 19 10:18:49.792 INFO [stderr]     |
Dec 19 10:18:49.792 INFO [stderr] 103 |     fn run_retraction(&mut self, clause: Clause) -> Result<()> {
Dec 19 10:18:49.792 INFO [stderr]     |                                  ^^^^^^ help: consider using `_clause` instead
Dec 19 10:18:49.792 INFO [stderr] 
Dec 19 10:18:50.028 INFO [stderr] warning: function is never used: `entry_fn`
Dec 19 10:18:50.028 INFO [stderr]   --> src/util.rs:7:1
Dec 19 10:18:50.028 INFO [stderr]    |
Dec 19 10:18:50.028 INFO [stderr] 7  | / pub fn entry_fn<F, K, V>(map: &mut HashMap<K, V>, key: K, f: F)
Dec 19 10:18:50.028 INFO [stderr] 8  | | where
Dec 19 10:18:50.029 INFO [stderr] 9  | |     F: FnOnce(&K, Option<V>) -> Option<V>,
Dec 19 10:18:50.029 INFO [stderr] 10 | |     K: Eq + Hash,
Dec 19 10:18:50.029 INFO [stderr] ...  |
Dec 19 10:18:50.029 INFO [stderr] 15 | |     }
Dec 19 10:18:50.029 INFO [stderr] 16 | | }
Dec 19 10:18:50.029 INFO [stderr]    | |_^
Dec 19 10:18:50.029 INFO [stderr]    |
Dec 19 10:18:50.029 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 19 10:18:50.029 INFO [stderr] 
Dec 19 10:18:53.680 INFO [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
Dec 19 10:18:53.680 INFO [stderr]   --> src/errors.rs:9:1
Dec 19 10:18:53.680 INFO [stderr]    |
Dec 19 10:18:53.680 INFO [stderr] 9  | / error_chain! {
Dec 19 10:18:53.680 INFO [stderr] 10 | |     errors {
Dec 19 10:18:53.680 INFO [stderr] 11 | |         NoSuchClause(clause: Clause) {
Dec 19 10:18:53.680 INFO [stderr] 12 | |             description("A non-existent clause was found")
Dec 19 10:18:53.680 INFO [stderr] ...  |
Dec 19 10:18:53.680 INFO [stderr] 21 | |     }
Dec 19 10:18:53.680 INFO [stderr] 22 | | }
Dec 19 10:18:53.680 INFO [stderr]    | |_^
Dec 19 10:18:53.680 INFO [stderr]    |
Dec 19 10:18:53.680 INFO [stderr]    = note: #[warn(deprecated)] on by default
Dec 19 10:18:53.680 INFO [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Dec 19 10:18:53.680 INFO [stderr] 
Dec 19 10:18:53.887 INFO [stderr] warning: unused variable: `lv`
Dec 19 10:18:53.887 INFO [stderr]   --> src/ast/pattern_match.rs:32:24
Dec 19 10:18:53.887 INFO [stderr]    |
Dec 19 10:18:53.887 INFO [stderr] 32 |             (Term::Var(lv), Term::Var(rv)) => {}
Dec 19 10:18:53.887 INFO [stderr]    |                        ^^ help: consider using `_lv` instead
Dec 19 10:18:53.887 INFO [stderr]    |
Dec 19 10:18:53.887 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 19 10:18:53.887 INFO [stderr] 
Dec 19 10:18:53.887 INFO [stderr] warning: unused variable: `rv`
Dec 19 10:18:53.887 INFO [stderr]   --> src/ast/pattern_match.rs:32:39
Dec 19 10:18:53.887 INFO [stderr]    |
Dec 19 10:18:53.887 INFO [stderr] 32 |             (Term::Var(lv), Term::Var(rv)) => {}
Dec 19 10:18:53.887 INFO [stderr]    |                                       ^^ help: consider using `_rv` instead
Dec 19 10:18:53.887 INFO [stderr] 
Dec 19 10:18:53.927 INFO [stderr] warning: unused variable: `other`
Dec 19 10:18:53.928 INFO [stderr]  --> src/ast/eq.rs:5:28
Dec 19 10:18:53.928 INFO [stderr]   |
Dec 19 10:18:53.928 INFO [stderr] 5 |     pub fn alpha_eq(&self, other: &Clause) -> bool {
Dec 19 10:18:53.928 INFO [stderr]   |                            ^^^^^ help: consider using `_other` instead
Dec 19 10:18:53.928 INFO [stderr] 
Dec 19 10:18:53.928 INFO [stderr] warning: unused variable: `body`
Dec 19 10:18:53.928 INFO [stderr]    --> src/ast/mod.rs:119:26
Dec 19 10:18:53.928 INFO [stderr]     |
Dec 19 10:18:53.928 INFO [stderr] 119 |         let Clause(head, body) = self.clone();
Dec 19 10:18:53.928 INFO [stderr]     |                          ^^^^ help: consider using `_body` instead
Dec 19 10:18:53.928 INFO [stderr] 
Dec 19 10:18:53.928 INFO [stderr] warning: unused variable: `name`
Dec 19 10:18:53.928 INFO [stderr]    --> src/ast/mod.rs:123:21
Dec 19 10:18:53.928 INFO [stderr]     |
Dec 19 10:18:53.928 INFO [stderr] 123 |         let Literal(name, mut hargs) = head;
Dec 19 10:18:53.928 INFO [stderr]     |                     ^^^^ help: consider using `_name` instead
Dec 19 10:18:53.928 INFO [stderr] 
Dec 19 10:18:53.928 INFO [stderr] warning: unused variable: `clause`
Dec 19 10:18:53.928 INFO [stderr]    --> src/naive/mod.rs:103:34
Dec 19 10:18:53.928 INFO [stderr]     |
Dec 19 10:18:53.928 INFO [stderr] 103 |     fn run_retraction(&mut self, clause: Clause) -> Result<()> {
Dec 19 10:18:53.928 INFO [stderr]     |                                  ^^^^^^ help: consider using `_clause` instead
Dec 19 10:18:53.928 INFO [stderr] 
Dec 19 10:18:54.876 INFO [stderr] warning: function is never used: `entry_fn`
Dec 19 10:18:54.876 INFO [stderr]   --> src/util.rs:7:1
Dec 19 10:18:54.876 INFO [stderr]    |
Dec 19 10:18:54.876 INFO [stderr] 7  | / pub fn entry_fn<F, K, V>(map: &mut HashMap<K, V>, key: K, f: F)
Dec 19 10:18:54.876 INFO [stderr] 8  | | where
Dec 19 10:18:54.876 INFO [stderr] 9  | |     F: FnOnce(&K, Option<V>) -> Option<V>,
Dec 19 10:18:54.876 INFO [stderr] 10 | |     K: Eq + Hash,
Dec 19 10:18:54.876 INFO [stderr] ...  |
Dec 19 10:18:54.876 INFO [stderr] 15 | |     }
Dec 19 10:18:54.876 INFO [stderr] 16 | | }
Dec 19 10:18:54.876 INFO [stderr]    | |_^
Dec 19 10:18:54.876 INFO [stderr]    |
Dec 19 10:18:54.876 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 19 10:18:54.876 INFO [stderr] 
Dec 19 10:18:54.980 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 19.26s
Dec 19 10:18:55.734 INFO running `"docker" "inspect" "f9660ce6d5e723774abaf87e7f8e32b10b6a81574e5f8fe99f28c6b481382185"`
Dec 19 10:18:56.010 INFO running `"docker" "rm" "-f" "f9660ce6d5e723774abaf87e7f8e32b10b6a81574e5f8fe99f28c6b481382185"`
Dec 19 10:18:56.388 INFO [stdout] f9660ce6d5e723774abaf87e7f8e32b10b6a81574e5f8fe99f28c6b481382185