[INFO] updating cached repository https://github.com/remexre/wam-tutorial-reconstruction
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/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] af142d5921eedde36dc5c36b29bf08053336e21b
[INFO] checking remexre/wam-tutorial-reconstruction against master#bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc for pr-70917
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fremexre%2Fwam-tutorial-reconstruction" "/workspace/builds/worker-0/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/remexre/wam-tutorial-reconstruction on toolchain bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc
[INFO] running `"/workspace/cargo-home/bin/cargo" "+bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/remexre/wam-tutorial-reconstruction
[INFO] finished tweaking git repo https://github.com/remexre/wam-tutorial-reconstruction
[INFO] tweaked toml for git repo https://github.com/remexre/wam-tutorial-reconstruction written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/remexre/wam-tutorial-reconstruction already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] warning: An explicit [[bin]] section is specified in Cargo.toml which currently
[INFO] [stderr] disables Cargo from automatically inferring other binary targets.
[INFO] [stderr] This inference behavior will change in the Rust 2018 edition and the following
[INFO] [stderr] files will be included as a binary target:
[INFO] [stderr] 
[INFO] [stderr] * /workspace/builds/worker-0/source/src/bin/logger.rs
[INFO] [stderr] * /workspace/builds/worker-0/source/src/bin/options.rs
[INFO] [stderr] 
[INFO] [stderr] This is likely to break cargo build or cargo test as these files may not be
[INFO] [stderr] ready to be compiled as a binary target today. You can future-proof yourself
[INFO] [stderr] and disable this warning by adding `autobins = false` to your [package]
[INFO] [stderr] section. You may also move the files to a location where Cargo would not
[INFO] [stderr] automatically infer them to be a target, such as in subfolders.
[INFO] [stderr] 
[INFO] [stderr] For more information on this warning you can consult
[INFO] [stderr] https://github.com/rust-lang/cargo/issues/5330
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-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" "+bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 09a38d326c99e37829ee6c9adaf2103b72b84336df9c8bb005a4d531b6cfff2b
[INFO] running `"docker" "start" "-a" "09a38d326c99e37829ee6c9adaf2103b72b84336df9c8bb005a4d531b6cfff2b"`
[INFO] [stderr] warning: An explicit [[bin]] section is specified in Cargo.toml which currently
[INFO] [stderr] disables Cargo from automatically inferring other binary targets.
[INFO] [stderr] This inference behavior will change in the Rust 2018 edition and the following
[INFO] [stderr] files will be included as a binary target:
[INFO] [stderr] 
[INFO] [stderr] * /opt/rustwide/workdir/src/bin/logger.rs
[INFO] [stderr] * /opt/rustwide/workdir/src/bin/options.rs
[INFO] [stderr] 
[INFO] [stderr] This is likely to break cargo build or cargo test as these files may not be
[INFO] [stderr] ready to be compiled as a binary target today. You can future-proof yourself
[INFO] [stderr] and disable this warning by adding `autobins = false` to your [package]
[INFO] [stderr] section. You may also move the files to a location where Cargo would not
[INFO] [stderr] automatically infer them to be a target, such as in subfolders.
[INFO] [stderr] 
[INFO] [stderr] For more information on this warning you can consult
[INFO] [stderr] https://github.com/rust-lang/cargo/issues/5330
[INFO] [stderr]     Checking either v1.4.0
[INFO] [stderr]     Checking regex-syntax v0.5.0
[INFO] [stderr]     Checking symbol v0.1.1
[INFO] [stderr]     Checking memchr v1.0.2
[INFO] [stderr]     Checking rand v0.4.2
[INFO] [stderr]    Compiling syn v0.12.13
[INFO] [stderr]     Checking nix v0.7.0
[INFO] [stderr]     Checking nom v3.2.1
[INFO] [stderr]     Checking proptest v0.5.1
[INFO] [stderr]     Checking linefeed v0.4.0
[INFO] [stderr]     Checking regex v0.2.7
[INFO] [stderr]    Compiling structopt-derive v0.2.5
[INFO] [stderr]     Checking structopt v0.2.5
[INFO] [stderr]     Checking wam-tutorial-reconstruction v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/common/parsers.rs:184:12
[INFO] [stderr]     |
[INFO] [stderr] 184 |         'a'...'f' | 'A'...'F' | '0'...'9' => true,
[INFO] [stderr]     |            ^^^ help: use `..=` for an inclusive range
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/common/parsers.rs:184:24
[INFO] [stderr]     |
[INFO] [stderr] 184 |         'a'...'f' | 'A'...'F' | '0'...'9' => true,
[INFO] [stderr]     |                        ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/common/parsers.rs:184:36
[INFO] [stderr]     |
[INFO] [stderr] 184 |         'a'...'f' | 'A'...'F' | '0'...'9' => true,
[INFO] [stderr]     |                                    ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/flat/mod.rs:219:14
[INFO] [stderr]     |
[INFO] [stderr] 219 |     ) -> Box<'a + Iterator<Item = Result<HashMap<Variable, Term>, Error>>> {
[INFO] [stderr]     |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn 'a + Iterator<Item = Result<HashMap<Variable, Term>, Error>>`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/unification/mod.rs:159:14
[INFO] [stderr]     |
[INFO] [stderr] 159 |     ) -> Box<Iterator<Item = Result<HashMap<Variable, Term>, Error>>> {
[INFO] [stderr]     |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = Result<HashMap<Variable, Term>, Error>>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:46:14
[INFO] [stderr]    |
[INFO] [stderr] 46 |     ) -> Box<'a + Iterator<Item = Result<HashMap<Variable, Term>, Error>>>;
[INFO] [stderr]    |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn 'a + Iterator<Item = Result<HashMap<Variable, Term>, Error>>`
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]    --> src/common/mod.rs:104:9
[INFO] [stderr]     |
[INFO] [stderr] 104 | /         lazy_static! {
[INFO] [stderr] 105 | |             static ref PLAIN: Regex = Regex::new("^[a-z0-9][a-zA-Z_0-9]*$").unwrap();
[INFO] [stderr] 106 | |         }
[INFO] [stderr]     | |_________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]    --> src/common/mod.rs:178:1
[INFO] [stderr]     |
[INFO] [stderr] 178 | / lazy_static! {
[INFO] [stderr] 179 | |     static ref VARIABLE_NAME: Regex =
[INFO] [stderr] 180 | |         Regex::new("^(_[a-zA-Z_0-9]|[A-Z])[a-zA-Z_0-9]*$").unwrap();
[INFO] [stderr] 181 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `n`
[INFO] [stderr]    --> src/flat/mod.rs:164:29
[INFO] [stderr]     |
[INFO] [stderr] 164 |             Location::Local(n) => unimplemented!("index local"),
[INFO] [stderr]     |                             ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `n`
[INFO] [stderr]    --> src/flat/mod.rs:210:29
[INFO] [stderr]     |
[INFO] [stderr] 210 |             Location::Local(n) => unimplemented!("index local"),
[INFO] [stderr]     |                             ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `head`
[INFO] [stderr]   --> src/flat/compile/clause.rs:35:28
[INFO] [stderr]    |
[INFO] [stderr] 35 |     let body = if let Some(head) = head {
[INFO] [stderr]    |                            ^^^^ help: if this is intentional, prefix it with an underscore: `_head`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `s`
[INFO] [stderr]   --> src/flat/compile/clause.rs:56:9
[INFO] [stderr]    |
[INFO] [stderr] 56 |     for s in body {
[INFO] [stderr]    |         ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/flat/compile/clause.rs:74:10
[INFO] [stderr]    |
[INFO] [stderr] 74 |     for (i, f) in flatten(s).into_iter().enumerate() {
[INFO] [stderr]    |          ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `a`
[INFO] [stderr]   --> src/flat/compile/clause.rs:76:31
[INFO] [stderr]    |
[INFO] [stderr] 76 |             FlatTerm::Functor(a, is) => unimplemented!(),
[INFO] [stderr]    |                               ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `is`
[INFO] [stderr]   --> src/flat/compile/clause.rs:76:34
[INFO] [stderr]    |
[INFO] [stderr] 76 |             FlatTerm::Functor(a, is) => unimplemented!(),
[INFO] [stderr]    |                                  ^^ help: if this is intentional, prefix it with an underscore: `_is`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `n`
[INFO] [stderr]   --> src/flat/compile/clause.rs:77:27
[INFO] [stderr]    |
[INFO] [stderr] 77 |             FlatTerm::Ref(n) => unimplemented!(),
[INFO] [stderr]    |                           ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `v`
[INFO] [stderr]   --> src/flat/compile/clause.rs:78:37
[INFO] [stderr]    |
[INFO] [stderr] 78 |             FlatTerm::Variable(Some(v)) => unimplemented!(),
[INFO] [stderr]    |                                     ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `code`
[INFO] [stderr]   --> src/flat/compile/clause.rs:68:5
[INFO] [stderr]    |
[INFO] [stderr] 68 |     code: &mut Vec<Instruction>,
[INFO] [stderr]    |     ^^^^ help: if this is intentional, prefix it with an underscore: `_code`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `seen`
[INFO] [stderr]   --> src/flat/compile/clause.rs:69:5
[INFO] [stderr]    |
[INFO] [stderr] 69 |     seen: &mut HashSet<usize>,
[INFO] [stderr]    |     ^^^^ help: if this is intentional, prefix it with an underscore: `_seen`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vars`
[INFO] [stderr]   --> src/flat/compile/clause.rs:70:5
[INFO] [stderr]    |
[INFO] [stderr] 70 |     vars: &mut HashMap<Variable, Location>,
[INFO] [stderr]    |     ^^^^ help: if this is intentional, prefix it with an underscore: `_vars`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `permanent`
[INFO] [stderr]   --> src/flat/compile/clause.rs:71:5
[INFO] [stderr]    |
[INFO] [stderr] 71 |     permanent: &HashMap<Variable, usize>,
[INFO] [stderr]    |     ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_permanent`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `a`
[INFO] [stderr]   --> src/flat/compile/clause.rs:94:39
[INFO] [stderr]    |
[INFO] [stderr] 94 |             Term::Structure(Structure(a, ref ts)) => unimplemented!(),
[INFO] [stderr]    |                                       ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `ts`
[INFO] [stderr]   --> src/flat/compile/clause.rs:94:46
[INFO] [stderr]    |
[INFO] [stderr] 94 |             Term::Structure(Structure(a, ref ts)) => unimplemented!(),
[INFO] [stderr]    |                                              ^^ help: if this is intentional, prefix it with an underscore: `_ts`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vars`
[INFO] [stderr]   --> src/flat/compile/clause.rs:87:5
[INFO] [stderr]    |
[INFO] [stderr] 87 |     vars: &mut HashMap<Variable, usize>,
[INFO] [stderr]    |     ^^^^ help: if this is intentional, prefix it with an underscore: `_vars`
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `compile_head`
[INFO] [stderr]   --> src/flat/compile/clause.rs:67:4
[INFO] [stderr]    |
[INFO] [stderr] 67 | fn compile_head(
[INFO] [stderr]    |    ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `compile_body`
[INFO] [stderr]   --> src/flat/compile/clause.rs:84:4
[INFO] [stderr]    |
[INFO] [stderr] 84 | fn compile_body(
[INFO] [stderr]    |    ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `extract_term`
[INFO] [stderr]   --> src/flat/store.rs:57:5
[INFO] [stderr]    |
[INFO] [stderr] 57 | /     pub fn extract_term(
[INFO] [stderr] 58 | |         &self,
[INFO] [stderr] 59 | |         idx: usize,
[INFO] [stderr] 60 | |         names: Option<&HashMap<usize, Variable>>,
[INFO] [stderr] ...  |
[INFO] [stderr] 89 | |         }
[INFO] [stderr] 90 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr] 
[INFO] [stderr] warning: missing documentation for a variant
[INFO] [stderr]   --> src/flat/control.rs:38:5
[INFO] [stderr]    |
[INFO] [stderr] 38 |     GetValue(Location, usize),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr] note: the lint level is defined here
[INFO] [stderr]   --> src/lib.rs:6:9
[INFO] [stderr]    |
[INFO] [stderr] 6  | #![warn(missing_docs)]
[INFO] [stderr]    |         ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: missing documentation for a variant
[INFO] [stderr]   --> src/flat/control.rs:39:5
[INFO] [stderr]    |
[INFO] [stderr] 39 |     GetVariable(Location, usize),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: missing documentation for a variant
[INFO] [stderr]   --> src/flat/control.rs:45:5
[INFO] [stderr]    |
[INFO] [stderr] 45 |     PutValue(Location, usize),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: missing documentation for a variant
[INFO] [stderr]   --> src/flat/control.rs:46:5
[INFO] [stderr]    |
[INFO] [stderr] 46 |     PutVariable(Location, usize),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/common/parsers.rs:184:12
[INFO] [stderr]     |
[INFO] [stderr] 184 |         'a'...'f' | 'A'...'F' | '0'...'9' => true,
[INFO] [stderr]     |            ^^^ help: use `..=` for an inclusive range
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/common/parsers.rs:184:24
[INFO] [stderr]     |
[INFO] [stderr] 184 |         'a'...'f' | 'A'...'F' | '0'...'9' => true,
[INFO] [stderr]     |                        ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/common/parsers.rs:184:36
[INFO] [stderr]     |
[INFO] [stderr] 184 |         'a'...'f' | 'A'...'F' | '0'...'9' => true,
[INFO] [stderr]     |                                    ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/flat/mod.rs:219:14
[INFO] [stderr]     |
[INFO] [stderr] 219 |     ) -> Box<'a + Iterator<Item = Result<HashMap<Variable, Term>, Error>>> {
[INFO] [stderr]     |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn 'a + Iterator<Item = Result<HashMap<Variable, Term>, Error>>`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/unification/mod.rs:159:14
[INFO] [stderr]     |
[INFO] [stderr] 159 |     ) -> Box<Iterator<Item = Result<HashMap<Variable, Term>, Error>>> {
[INFO] [stderr]     |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = Result<HashMap<Variable, Term>, Error>>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:46:14
[INFO] [stderr]    |
[INFO] [stderr] 46 |     ) -> Box<'a + Iterator<Item = Result<HashMap<Variable, Term>, Error>>>;
[INFO] [stderr]    |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn 'a + Iterator<Item = Result<HashMap<Variable, Term>, Error>>`
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]    --> src/common/mod.rs:104:9
[INFO] [stderr]     |
[INFO] [stderr] 104 | /         lazy_static! {
[INFO] [stderr] 105 | |             static ref PLAIN: Regex = Regex::new("^[a-z0-9][a-zA-Z_0-9]*$").unwrap();
[INFO] [stderr] 106 | |         }
[INFO] [stderr]     | |_________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]    --> src/common/mod.rs:178:1
[INFO] [stderr]     |
[INFO] [stderr] 178 | / lazy_static! {
[INFO] [stderr] 179 | |     static ref VARIABLE_NAME: Regex =
[INFO] [stderr] 180 | |         Regex::new("^(_[a-zA-Z_0-9]|[A-Z])[a-zA-Z_0-9]*$").unwrap();
[INFO] [stderr] 181 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `n`
[INFO] [stderr]    --> src/flat/mod.rs:164:29
[INFO] [stderr]     |
[INFO] [stderr] 164 |             Location::Local(n) => unimplemented!("index local"),
[INFO] [stderr]     |                             ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `n`
[INFO] [stderr]    --> src/flat/mod.rs:210:29
[INFO] [stderr]     |
[INFO] [stderr] 210 |             Location::Local(n) => unimplemented!("index local"),
[INFO] [stderr]     |                             ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `head`
[INFO] [stderr]   --> src/flat/compile/clause.rs:35:28
[INFO] [stderr]    |
[INFO] [stderr] 35 |     let body = if let Some(head) = head {
[INFO] [stderr]    |                            ^^^^ help: if this is intentional, prefix it with an underscore: `_head`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `s`
[INFO] [stderr]   --> src/flat/compile/clause.rs:56:9
[INFO] [stderr]    |
[INFO] [stderr] 56 |     for s in body {
[INFO] [stderr]    |         ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/flat/compile/clause.rs:74:10
[INFO] [stderr]    |
[INFO] [stderr] 74 |     for (i, f) in flatten(s).into_iter().enumerate() {
[INFO] [stderr]    |          ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `a`
[INFO] [stderr]   --> src/flat/compile/clause.rs:76:31
[INFO] [stderr]    |
[INFO] [stderr] 76 |             FlatTerm::Functor(a, is) => unimplemented!(),
[INFO] [stderr]    |                               ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `is`
[INFO] [stderr]   --> src/flat/compile/clause.rs:76:34
[INFO] [stderr]    |
[INFO] [stderr] 76 |             FlatTerm::Functor(a, is) => unimplemented!(),
[INFO] [stderr]    |                                  ^^ help: if this is intentional, prefix it with an underscore: `_is`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `n`
[INFO] [stderr]   --> src/flat/compile/clause.rs:77:27
[INFO] [stderr]    |
[INFO] [stderr] 77 |             FlatTerm::Ref(n) => unimplemented!(),
[INFO] [stderr]    |                           ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `v`
[INFO] [stderr]   --> src/flat/compile/clause.rs:78:37
[INFO] [stderr]    |
[INFO] [stderr] 78 |             FlatTerm::Variable(Some(v)) => unimplemented!(),
[INFO] [stderr]    |                                     ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `code`
[INFO] [stderr]   --> src/flat/compile/clause.rs:68:5
[INFO] [stderr]    |
[INFO] [stderr] 68 |     code: &mut Vec<Instruction>,
[INFO] [stderr]    |     ^^^^ help: if this is intentional, prefix it with an underscore: `_code`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `seen`
[INFO] [stderr]   --> src/flat/compile/clause.rs:69:5
[INFO] [stderr]    |
[INFO] [stderr] 69 |     seen: &mut HashSet<usize>,
[INFO] [stderr]    |     ^^^^ help: if this is intentional, prefix it with an underscore: `_seen`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vars`
[INFO] [stderr]   --> src/flat/compile/clause.rs:70:5
[INFO] [stderr]    |
[INFO] [stderr] 70 |     vars: &mut HashMap<Variable, Location>,
[INFO] [stderr]    |     ^^^^ help: if this is intentional, prefix it with an underscore: `_vars`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `permanent`
[INFO] [stderr]   --> src/flat/compile/clause.rs:71:5
[INFO] [stderr]    |
[INFO] [stderr] 71 |     permanent: &HashMap<Variable, usize>,
[INFO] [stderr]    |     ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_permanent`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `a`
[INFO] [stderr]   --> src/flat/compile/clause.rs:94:39
[INFO] [stderr]    |
[INFO] [stderr] 94 |             Term::Structure(Structure(a, ref ts)) => unimplemented!(),
[INFO] [stderr]    |                                       ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `ts`
[INFO] [stderr]   --> src/flat/compile/clause.rs:94:46
[INFO] [stderr]    |
[INFO] [stderr] 94 |             Term::Structure(Structure(a, ref ts)) => unimplemented!(),
[INFO] [stderr]    |                                              ^^ help: if this is intentional, prefix it with an underscore: `_ts`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vars`
[INFO] [stderr]   --> src/flat/compile/clause.rs:87:5
[INFO] [stderr]    |
[INFO] [stderr] 87 |     vars: &mut HashMap<Variable, usize>,
[INFO] [stderr]    |     ^^^^ help: if this is intentional, prefix it with an underscore: `_vars`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/bin/options.rs:73:45
[INFO] [stderr]    |
[INFO] [stderr] 73 |     pub fn new_machine(&self) -> Result<Box<Machine>, Error> {
[INFO] [stderr]    |                                             ^^^^^^^ help: use `dyn`: `dyn Machine`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/bin/main.rs:101:13
[INFO] [stderr]     |
[INFO] [stderr] 101 |     m: &mut Machine,
[INFO] [stderr]     |             ^^^^^^^ help: use `dyn`: `dyn Machine`
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::env::home_dir': This function's behavior is unexpected and probably not what you want. Consider using the home_dir function from https://crates.io/crates/dirs instead.
[INFO] [stderr]   --> src/bin/main.rs:44:5
[INFO] [stderr]    |
[INFO] [stderr] 44 |     std::env::home_dir()
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/bin/options.rs:73:45
[INFO] [stderr]    |
[INFO] [stderr] 73 |     pub fn new_machine(&self) -> Result<Box<Machine>, Error> {
[INFO] [stderr]    |                                             ^^^^^^^ help: use `dyn`: `dyn Machine`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/bin/main.rs:101:13
[INFO] [stderr]     |
[INFO] [stderr] 101 |     m: &mut Machine,
[INFO] [stderr]     |             ^^^^^^^ help: use `dyn`: `dyn Machine`
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::env::home_dir': This function's behavior is unexpected and probably not what you want. Consider using the home_dir function from https://crates.io/crates/dirs instead.
[INFO] [stderr]   --> src/bin/main.rs:44:5
[INFO] [stderr]    |
[INFO] [stderr] 44 |     std::env::home_dir()
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `compile_head`
[INFO] [stderr]   --> src/flat/compile/clause.rs:67:4
[INFO] [stderr]    |
[INFO] [stderr] 67 | fn compile_head(
[INFO] [stderr]    |    ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `compile_body`
[INFO] [stderr]   --> src/flat/compile/clause.rs:84:4
[INFO] [stderr]    |
[INFO] [stderr] 84 | fn compile_body(
[INFO] [stderr]    |    ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `extract_term`
[INFO] [stderr]   --> src/flat/store.rs:57:5
[INFO] [stderr]    |
[INFO] [stderr] 57 | /     pub fn extract_term(
[INFO] [stderr] 58 | |         &self,
[INFO] [stderr] 59 | |         idx: usize,
[INFO] [stderr] 60 | |         names: Option<&HashMap<usize, Variable>>,
[INFO] [stderr] ...  |
[INFO] [stderr] 89 | |         }
[INFO] [stderr] 90 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 28.78s
[INFO] running `"docker" "inspect" "09a38d326c99e37829ee6c9adaf2103b72b84336df9c8bb005a4d531b6cfff2b"`
[INFO] running `"docker" "rm" "-f" "09a38d326c99e37829ee6c9adaf2103b72b84336df9c8bb005a4d531b6cfff2b"`
[INFO] [stdout] 09a38d326c99e37829ee6c9adaf2103b72b84336df9c8bb005a4d531b6cfff2b
