[INFO] cloning repository https://github.com/remexre/wam-tutorial-reconstruction
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/remexre/wam-tutorial-reconstruction" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fremexre%2Fwam-tutorial-reconstruction", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fremexre%2Fwam-tutorial-reconstruction'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] af142d5921eedde36dc5c36b29bf08053336e21b
[INFO] testing remexre/wam-tutorial-reconstruction against 1.54.0 for beta-1.55-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fremexre%2Fwam-tutorial-reconstruction" "/workspace/builds/worker-12/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/remexre/wam-tutorial-reconstruction on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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-12/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 `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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-12/source/src/bin/options.rs
[INFO] [stderr] * /workspace/builds/worker-12/source/src/bin/logger.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]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8bfee6caee077cf69bf85d449336cbb5458349d063e2837cede552d53ea45764
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "8bfee6caee077cf69bf85d449336cbb5458349d063e2837cede552d53ea45764", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8bfee6caee077cf69bf85d449336cbb5458349d063e2837cede552d53ea45764", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8bfee6caee077cf69bf85d449336cbb5458349d063e2837cede552d53ea45764", kill_on_drop: false }`
[INFO] [stdout] 8bfee6caee077cf69bf85d449336cbb5458349d063e2837cede552d53ea45764
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 617b020c6e6b02b953af2103a34881e70e5fbb96157aa2bf0e2c485a328943b6
[INFO] running `Command { std: "docker" "start" "-a" "617b020c6e6b02b953af2103a34881e70e5fbb96157aa2bf0e2c485a328943b6", kill_on_drop: false }`
[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/options.rs
[INFO] [stderr] * /opt/rustwide/workdir/src/bin/logger.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]    Compiling libc v0.2.39
[INFO] [stderr]    Compiling cc v1.0.5
[INFO] [stderr]    Compiling vec_map v0.8.0
[INFO] [stderr]    Compiling rustc-demangle v0.1.7
[INFO] [stderr]    Compiling spin v0.4.6
[INFO] [stderr]    Compiling ansi_term v0.10.2
[INFO] [stderr]    Compiling proc-macro2 v0.2.3
[INFO] [stderr]    Compiling textwrap v0.9.0
[INFO] [stderr]    Compiling regex-syntax v0.5.0
[INFO] [stderr]    Compiling log v0.4.1
[INFO] [stderr]    Compiling thread_local v0.3.5
[INFO] [stderr]    Compiling symbol v0.1.1
[INFO] [stderr]    Compiling quote v0.4.2
[INFO] [stderr]    Compiling atty v0.2.8
[INFO] [stderr]    Compiling memchr v2.0.1
[INFO] [stderr]    Compiling memchr v1.0.2
[INFO] [stderr]    Compiling nix v0.7.0
[INFO] [stderr]    Compiling syn v0.12.13
[INFO] [stderr]    Compiling clap v2.31.1
[INFO] [stderr]    Compiling aho-corasick v0.6.4
[INFO] [stderr]    Compiling nom v3.2.1
[INFO] [stderr]    Compiling backtrace-sys v0.1.16
[INFO] [stderr]    Compiling linefeed v0.4.0
[INFO] [stderr]    Compiling regex v0.2.7
[INFO] [stderr]    Compiling structopt-derive v0.2.5
[INFO] [stderr]    Compiling structopt v0.2.5
[INFO] [stderr]    Compiling backtrace v0.3.5
[INFO] [stderr]    Compiling failure v0.1.1
[INFO] [stderr]    Compiling wam-tutorial-reconstruction v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/common/parsers.rs:184:12
[INFO] [stdout]     |
[INFO] [stdout] 184 |         'a'...'f' | 'A'...'F' | '0'...'9' => true,
[INFO] [stdout]     |            ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/common/parsers.rs:184:24
[INFO] [stdout]     |
[INFO] [stdout] 184 |         'a'...'f' | 'A'...'F' | '0'...'9' => true,
[INFO] [stdout]     |                        ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/common/parsers.rs:184:36
[INFO] [stdout]     |
[INFO] [stdout] 184 |         'a'...'f' | 'A'...'F' | '0'...'9' => true,
[INFO] [stdout]     |                                    ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/flat/mod.rs:219:14
[INFO] [stdout]     |
[INFO] [stdout] 219 |     ) -> Box<'a + Iterator<Item = Result<HashMap<Variable, Term>, Error>>> {
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn 'a + Iterator<Item = Result<HashMap<Variable, Term>, Error>>`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/unification/mod.rs:159:14
[INFO] [stdout]     |
[INFO] [stdout] 159 |     ) -> Box<Iterator<Item = Result<HashMap<Variable, Term>, Error>>> {
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = Result<HashMap<Variable, Term>, Error>>`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:46:14
[INFO] [stdout]    |
[INFO] [stdout] 46 |     ) -> Box<'a + Iterator<Item = Result<HashMap<Variable, Term>, Error>>>;
[INFO] [stdout]    |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn 'a + Iterator<Item = Result<HashMap<Variable, Term>, Error>>`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]    --> src/common/mod.rs:104:9
[INFO] [stdout]     |
[INFO] [stdout] 104 | /         lazy_static! {
[INFO] [stdout] 105 | |             static ref PLAIN: Regex = Regex::new("^[a-z0-9][a-zA-Z_0-9]*$").unwrap();
[INFO] [stdout] 106 | |         }
[INFO] [stdout]     | |_________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout]     = note: this warning originates in the macro `__lazy_static_create` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]    --> src/common/mod.rs:178:1
[INFO] [stdout]     |
[INFO] [stdout] 178 | / lazy_static! {
[INFO] [stdout] 179 | |     static ref VARIABLE_NAME: Regex =
[INFO] [stdout] 180 | |         Regex::new("^(_[a-zA-Z_0-9]|[A-Z])[a-zA-Z_0-9]*$").unwrap();
[INFO] [stdout] 181 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `__lazy_static_create` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]    --> src/flat/mod.rs:164:29
[INFO] [stdout]     |
[INFO] [stdout] 164 |             Location::Local(n) => unimplemented!("index local"),
[INFO] [stdout]     |                             ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]    --> src/flat/mod.rs:210:29
[INFO] [stdout]     |
[INFO] [stdout] 210 |             Location::Local(n) => unimplemented!("index local"),
[INFO] [stdout]     |                             ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `head`
[INFO] [stdout]   --> src/flat/compile/clause.rs:35:28
[INFO] [stdout]    |
[INFO] [stdout] 35 |     let body = if let Some(head) = head {
[INFO] [stdout]    |                            ^^^^ help: if this is intentional, prefix it with an underscore: `_head`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]   --> src/flat/compile/clause.rs:56:9
[INFO] [stdout]    |
[INFO] [stdout] 56 |     for s in body {
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/flat/compile/clause.rs:74:10
[INFO] [stdout]    |
[INFO] [stdout] 74 |     for (i, f) in flatten(s).into_iter().enumerate() {
[INFO] [stdout]    |          ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]   --> src/flat/compile/clause.rs:76:31
[INFO] [stdout]    |
[INFO] [stdout] 76 |             FlatTerm::Functor(a, is) => unimplemented!(),
[INFO] [stdout]    |                               ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `is`
[INFO] [stdout]   --> src/flat/compile/clause.rs:76:34
[INFO] [stdout]    |
[INFO] [stdout] 76 |             FlatTerm::Functor(a, is) => unimplemented!(),
[INFO] [stdout]    |                                  ^^ help: if this is intentional, prefix it with an underscore: `_is`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]   --> src/flat/compile/clause.rs:77:27
[INFO] [stdout]    |
[INFO] [stdout] 77 |             FlatTerm::Ref(n) => unimplemented!(),
[INFO] [stdout]    |                           ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `v`
[INFO] [stdout]   --> src/flat/compile/clause.rs:78:37
[INFO] [stdout]    |
[INFO] [stdout] 78 |             FlatTerm::Variable(Some(v)) => unimplemented!(),
[INFO] [stdout]    |                                     ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `code`
[INFO] [stdout]   --> src/flat/compile/clause.rs:68:5
[INFO] [stdout]    |
[INFO] [stdout] 68 |     code: &mut Vec<Instruction>,
[INFO] [stdout]    |     ^^^^ help: if this is intentional, prefix it with an underscore: `_code`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `seen`
[INFO] [stdout]   --> src/flat/compile/clause.rs:69:5
[INFO] [stdout]    |
[INFO] [stdout] 69 |     seen: &mut HashSet<usize>,
[INFO] [stdout]    |     ^^^^ help: if this is intentional, prefix it with an underscore: `_seen`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `vars`
[INFO] [stdout]   --> src/flat/compile/clause.rs:70:5
[INFO] [stdout]    |
[INFO] [stdout] 70 |     vars: &mut HashMap<Variable, Location>,
[INFO] [stdout]    |     ^^^^ help: if this is intentional, prefix it with an underscore: `_vars`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `permanent`
[INFO] [stdout]   --> src/flat/compile/clause.rs:71:5
[INFO] [stdout]    |
[INFO] [stdout] 71 |     permanent: &HashMap<Variable, usize>,
[INFO] [stdout]    |     ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_permanent`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]   --> src/flat/compile/clause.rs:94:39
[INFO] [stdout]    |
[INFO] [stdout] 94 |             Term::Structure(Structure(a, ref ts)) => unimplemented!(),
[INFO] [stdout]    |                                       ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ts`
[INFO] [stdout]   --> src/flat/compile/clause.rs:94:46
[INFO] [stdout]    |
[INFO] [stdout] 94 |             Term::Structure(Structure(a, ref ts)) => unimplemented!(),
[INFO] [stdout]    |                                              ^^ help: if this is intentional, prefix it with an underscore: `_ts`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `vars`
[INFO] [stdout]   --> src/flat/compile/clause.rs:87:5
[INFO] [stdout]    |
[INFO] [stdout] 87 |     vars: &mut HashMap<Variable, usize>,
[INFO] [stdout]    |     ^^^^ help: if this is intentional, prefix it with an underscore: `_vars`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `compile_head`
[INFO] [stdout]   --> src/flat/compile/clause.rs:67:4
[INFO] [stdout]    |
[INFO] [stdout] 67 | fn compile_head(
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `compile_body`
[INFO] [stdout]   --> src/flat/compile/clause.rs:84:4
[INFO] [stdout]    |
[INFO] [stdout] 84 | fn compile_body(
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `extract_term`
[INFO] [stdout]   --> src/flat/store.rs:57:12
[INFO] [stdout]    |
[INFO] [stdout] 57 |     pub fn extract_term(
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: missing documentation for a variant
[INFO] [stdout]   --> src/flat/control.rs:38:5
[INFO] [stdout]    |
[INFO] [stdout] 38 |     GetValue(Location, usize),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/lib.rs:6:9
[INFO] [stdout]    |
[INFO] [stdout] 6  | #![warn(missing_docs)]
[INFO] [stdout]    |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: missing documentation for a variant
[INFO] [stdout]   --> src/flat/control.rs:39:5
[INFO] [stdout]    |
[INFO] [stdout] 39 |     GetVariable(Location, usize),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: missing documentation for a variant
[INFO] [stdout]   --> src/flat/control.rs:45:5
[INFO] [stdout]    |
[INFO] [stdout] 45 |     PutValue(Location, usize),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: missing documentation for a variant
[INFO] [stdout]   --> src/flat/control.rs:46:5
[INFO] [stdout]    |
[INFO] [stdout] 46 |     PutVariable(Location, usize),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 31 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/bin/options.rs:73:45
[INFO] [stdout]    |
[INFO] [stdout] 73 |     pub fn new_machine(&self) -> Result<Box<Machine>, Error> {
[INFO] [stdout]    |                                             ^^^^^^^ help: use `dyn`: `dyn Machine`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/bin/main.rs:101:13
[INFO] [stdout]     |
[INFO] [stdout] 101 |     m: &mut Machine,
[INFO] [stdout]     |             ^^^^^^^ help: use `dyn`: `dyn Machine`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::env::home_dir`: This function's behavior is unexpected and probably not what you want. Consider using a crate from crates.io instead.
[INFO] [stdout]   --> src/bin/main.rs:44:5
[INFO] [stdout]    |
[INFO] [stdout] 44 |     std::env::home_dir()
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 11s
[INFO] running `Command { std: "docker" "inspect" "617b020c6e6b02b953af2103a34881e70e5fbb96157aa2bf0e2c485a328943b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "617b020c6e6b02b953af2103a34881e70e5fbb96157aa2bf0e2c485a328943b6", kill_on_drop: false }`
[INFO] [stdout] 617b020c6e6b02b953af2103a34881e70e5fbb96157aa2bf0e2c485a328943b6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 7f7b6cd64ca1f2974cd42c7f1238ba0cf1a1b8a436e1ca39bb850cf0bb3c7d77
[INFO] running `Command { std: "docker" "start" "-a" "7f7b6cd64ca1f2974cd42c7f1238ba0cf1a1b8a436e1ca39bb850cf0bb3c7d77", kill_on_drop: false }`
[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/options.rs
[INFO] [stderr] * /opt/rustwide/workdir/src/bin/logger.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]    Compiling regex-syntax v0.4.2
[INFO] [stderr]    Compiling quick-error v1.2.1
[INFO] [stderr]    Compiling rand v0.4.2
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/common/parsers.rs:184:12
[INFO] [stdout]     |
[INFO] [stdout] 184 |         'a'...'f' | 'A'...'F' | '0'...'9' => true,
[INFO] [stdout]     |            ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/common/parsers.rs:184:24
[INFO] [stdout]     |
[INFO] [stdout] 184 |         'a'...'f' | 'A'...'F' | '0'...'9' => true,
[INFO] [stdout]     |                        ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/common/parsers.rs:184:36
[INFO] [stdout]     |
[INFO] [stdout] 184 |         'a'...'f' | 'A'...'F' | '0'...'9' => true,
[INFO] [stdout]     |                                    ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/flat/mod.rs:219:14
[INFO] [stdout]     |
[INFO] [stdout] 219 |     ) -> Box<'a + Iterator<Item = Result<HashMap<Variable, Term>, Error>>> {
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn 'a + Iterator<Item = Result<HashMap<Variable, Term>, Error>>`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/unification/mod.rs:159:14
[INFO] [stdout]     |
[INFO] [stdout] 159 |     ) -> Box<Iterator<Item = Result<HashMap<Variable, Term>, Error>>> {
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = Result<HashMap<Variable, Term>, Error>>`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:46:14
[INFO] [stdout]    |
[INFO] [stdout] 46 |     ) -> Box<'a + Iterator<Item = Result<HashMap<Variable, Term>, Error>>>;
[INFO] [stdout]    |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn 'a + Iterator<Item = Result<HashMap<Variable, Term>, Error>>`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]    --> src/common/mod.rs:104:9
[INFO] [stdout]     |
[INFO] [stdout] 104 | /         lazy_static! {
[INFO] [stdout] 105 | |             static ref PLAIN: Regex = Regex::new("^[a-z0-9][a-zA-Z_0-9]*$").unwrap();
[INFO] [stdout] 106 | |         }
[INFO] [stdout]     | |_________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout]     = note: this warning originates in the macro `__lazy_static_create` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]    --> src/common/mod.rs:178:1
[INFO] [stdout]     |
[INFO] [stdout] 178 | / lazy_static! {
[INFO] [stdout] 179 | |     static ref VARIABLE_NAME: Regex =
[INFO] [stdout] 180 | |         Regex::new("^(_[a-zA-Z_0-9]|[A-Z])[a-zA-Z_0-9]*$").unwrap();
[INFO] [stdout] 181 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `__lazy_static_create` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]    --> src/flat/mod.rs:164:29
[INFO] [stdout]     |
[INFO] [stdout] 164 |             Location::Local(n) => unimplemented!("index local"),
[INFO] [stdout]     |                             ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]    --> src/flat/mod.rs:210:29
[INFO] [stdout]     |
[INFO] [stdout] 210 |             Location::Local(n) => unimplemented!("index local"),
[INFO] [stdout]     |                             ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `head`
[INFO] [stdout]   --> src/flat/compile/clause.rs:35:28
[INFO] [stdout]    |
[INFO] [stdout] 35 |     let body = if let Some(head) = head {
[INFO] [stdout]    |                            ^^^^ help: if this is intentional, prefix it with an underscore: `_head`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]   --> src/flat/compile/clause.rs:56:9
[INFO] [stdout]    |
[INFO] [stdout] 56 |     for s in body {
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/flat/compile/clause.rs:74:10
[INFO] [stdout]    |
[INFO] [stdout] 74 |     for (i, f) in flatten(s).into_iter().enumerate() {
[INFO] [stdout]    |          ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]   --> src/flat/compile/clause.rs:76:31
[INFO] [stdout]    |
[INFO] [stdout] 76 |             FlatTerm::Functor(a, is) => unimplemented!(),
[INFO] [stdout]    |                               ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `is`
[INFO] [stdout]   --> src/flat/compile/clause.rs:76:34
[INFO] [stdout]    |
[INFO] [stdout] 76 |             FlatTerm::Functor(a, is) => unimplemented!(),
[INFO] [stdout]    |                                  ^^ help: if this is intentional, prefix it with an underscore: `_is`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]   --> src/flat/compile/clause.rs:77:27
[INFO] [stdout]    |
[INFO] [stdout] 77 |             FlatTerm::Ref(n) => unimplemented!(),
[INFO] [stdout]    |                           ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `v`
[INFO] [stdout]   --> src/flat/compile/clause.rs:78:37
[INFO] [stdout]    |
[INFO] [stdout] 78 |             FlatTerm::Variable(Some(v)) => unimplemented!(),
[INFO] [stdout]    |                                     ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `code`
[INFO] [stdout]   --> src/flat/compile/clause.rs:68:5
[INFO] [stdout]    |
[INFO] [stdout] 68 |     code: &mut Vec<Instruction>,
[INFO] [stdout]    |     ^^^^ help: if this is intentional, prefix it with an underscore: `_code`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `seen`
[INFO] [stdout]   --> src/flat/compile/clause.rs:69:5
[INFO] [stdout]    |
[INFO] [stdout] 69 |     seen: &mut HashSet<usize>,
[INFO] [stdout]    |     ^^^^ help: if this is intentional, prefix it with an underscore: `_seen`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `vars`
[INFO] [stdout]   --> src/flat/compile/clause.rs:70:5
[INFO] [stdout]    |
[INFO] [stdout] 70 |     vars: &mut HashMap<Variable, Location>,
[INFO] [stdout]    |     ^^^^ help: if this is intentional, prefix it with an underscore: `_vars`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `permanent`
[INFO] [stdout]   --> src/flat/compile/clause.rs:71:5
[INFO] [stdout]    |
[INFO] [stdout] 71 |     permanent: &HashMap<Variable, usize>,
[INFO] [stdout]    |     ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_permanent`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]   --> src/flat/compile/clause.rs:94:39
[INFO] [stdout]    |
[INFO] [stdout] 94 |             Term::Structure(Structure(a, ref ts)) => unimplemented!(),
[INFO] [stdout]    |                                       ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ts`
[INFO] [stdout]   --> src/flat/compile/clause.rs:94:46
[INFO] [stdout]    |
[INFO] [stdout] 94 |             Term::Structure(Structure(a, ref ts)) => unimplemented!(),
[INFO] [stdout]    |                                              ^^ help: if this is intentional, prefix it with an underscore: `_ts`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `vars`
[INFO] [stdout]   --> src/flat/compile/clause.rs:87:5
[INFO] [stdout]    |
[INFO] [stdout] 87 |     vars: &mut HashMap<Variable, usize>,
[INFO] [stdout]    |     ^^^^ help: if this is intentional, prefix it with an underscore: `_vars`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `compile_head`
[INFO] [stdout]   --> src/flat/compile/clause.rs:67:4
[INFO] [stdout]    |
[INFO] [stdout] 67 | fn compile_head(
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `compile_body`
[INFO] [stdout]   --> src/flat/compile/clause.rs:84:4
[INFO] [stdout]    |
[INFO] [stdout] 84 | fn compile_body(
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `extract_term`
[INFO] [stdout]   --> src/flat/store.rs:57:12
[INFO] [stdout]    |
[INFO] [stdout] 57 |     pub fn extract_term(
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: missing documentation for a variant
[INFO] [stdout]   --> src/flat/control.rs:38:5
[INFO] [stdout]    |
[INFO] [stdout] 38 |     GetValue(Location, usize),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/lib.rs:6:9
[INFO] [stdout]    |
[INFO] [stdout] 6  | #![warn(missing_docs)]
[INFO] [stdout]    |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: missing documentation for a variant
[INFO] [stdout]   --> src/flat/control.rs:39:5
[INFO] [stdout]    |
[INFO] [stdout] 39 |     GetVariable(Location, usize),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: missing documentation for a variant
[INFO] [stdout]   --> src/flat/control.rs:45:5
[INFO] [stdout]    |
[INFO] [stdout] 45 |     PutValue(Location, usize),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: missing documentation for a variant
[INFO] [stdout]   --> src/flat/control.rs:46:5
[INFO] [stdout]    |
[INFO] [stdout] 46 |     PutVariable(Location, usize),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 31 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling proptest v0.5.1
[INFO] [stderr]    Compiling wam-tutorial-reconstruction v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/bin/options.rs:73:45
[INFO] [stdout]    |
[INFO] [stdout] 73 |     pub fn new_machine(&self) -> Result<Box<Machine>, Error> {
[INFO] [stdout]    |                                             ^^^^^^^ help: use `dyn`: `dyn Machine`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/bin/main.rs:101:13
[INFO] [stdout]     |
[INFO] [stdout] 101 |     m: &mut Machine,
[INFO] [stdout]     |             ^^^^^^^ help: use `dyn`: `dyn Machine`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::env::home_dir`: This function's behavior is unexpected and probably not what you want. Consider using a crate from crates.io instead.
[INFO] [stdout]   --> src/bin/main.rs:44:5
[INFO] [stdout]    |
[INFO] [stdout] 44 |     std::env::home_dir()
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/common/parsers.rs:184:12
[INFO] [stdout]     |
[INFO] [stdout] 184 |         'a'...'f' | 'A'...'F' | '0'...'9' => true,
[INFO] [stdout]     |            ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/common/parsers.rs:184:24
[INFO] [stdout]     |
[INFO] [stdout] 184 |         'a'...'f' | 'A'...'F' | '0'...'9' => true,
[INFO] [stdout]     |                        ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/common/parsers.rs:184:36
[INFO] [stdout]     |
[INFO] [stdout] 184 |         'a'...'f' | 'A'...'F' | '0'...'9' => true,
[INFO] [stdout]     |                                    ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/flat/mod.rs:219:14
[INFO] [stdout]     |
[INFO] [stdout] 219 |     ) -> Box<'a + Iterator<Item = Result<HashMap<Variable, Term>, Error>>> {
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn 'a + Iterator<Item = Result<HashMap<Variable, Term>, Error>>`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/unification/mod.rs:159:14
[INFO] [stdout]     |
[INFO] [stdout] 159 |     ) -> Box<Iterator<Item = Result<HashMap<Variable, Term>, Error>>> {
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = Result<HashMap<Variable, Term>, Error>>`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:46:14
[INFO] [stdout]    |
[INFO] [stdout] 46 |     ) -> Box<'a + Iterator<Item = Result<HashMap<Variable, Term>, Error>>>;
[INFO] [stdout]    |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn 'a + Iterator<Item = Result<HashMap<Variable, Term>, Error>>`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]    --> src/common/mod.rs:104:9
[INFO] [stdout]     |
[INFO] [stdout] 104 | /         lazy_static! {
[INFO] [stdout] 105 | |             static ref PLAIN: Regex = Regex::new("^[a-z0-9][a-zA-Z_0-9]*$").unwrap();
[INFO] [stdout] 106 | |         }
[INFO] [stdout]     | |_________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout]     = note: this warning originates in the macro `__lazy_static_create` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]    --> src/common/mod.rs:178:1
[INFO] [stdout]     |
[INFO] [stdout] 178 | / lazy_static! {
[INFO] [stdout] 179 | |     static ref VARIABLE_NAME: Regex =
[INFO] [stdout] 180 | |         Regex::new("^(_[a-zA-Z_0-9]|[A-Z])[a-zA-Z_0-9]*$").unwrap();
[INFO] [stdout] 181 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `__lazy_static_create` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]    --> src/flat/mod.rs:164:29
[INFO] [stdout]     |
[INFO] [stdout] 164 |             Location::Local(n) => unimplemented!("index local"),
[INFO] [stdout]     |                             ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]    --> src/flat/mod.rs:210:29
[INFO] [stdout]     |
[INFO] [stdout] 210 |             Location::Local(n) => unimplemented!("index local"),
[INFO] [stdout]     |                             ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `head`
[INFO] [stdout]   --> src/flat/compile/clause.rs:35:28
[INFO] [stdout]    |
[INFO] [stdout] 35 |     let body = if let Some(head) = head {
[INFO] [stdout]    |                            ^^^^ help: if this is intentional, prefix it with an underscore: `_head`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]   --> src/flat/compile/clause.rs:56:9
[INFO] [stdout]    |
[INFO] [stdout] 56 |     for s in body {
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/flat/compile/clause.rs:74:10
[INFO] [stdout]    |
[INFO] [stdout] 74 |     for (i, f) in flatten(s).into_iter().enumerate() {
[INFO] [stdout]    |          ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]   --> src/flat/compile/clause.rs:76:31
[INFO] [stdout]    |
[INFO] [stdout] 76 |             FlatTerm::Functor(a, is) => unimplemented!(),
[INFO] [stdout]    |                               ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `is`
[INFO] [stdout]   --> src/flat/compile/clause.rs:76:34
[INFO] [stdout]    |
[INFO] [stdout] 76 |             FlatTerm::Functor(a, is) => unimplemented!(),
[INFO] [stdout]    |                                  ^^ help: if this is intentional, prefix it with an underscore: `_is`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]   --> src/flat/compile/clause.rs:77:27
[INFO] [stdout]    |
[INFO] [stdout] 77 |             FlatTerm::Ref(n) => unimplemented!(),
[INFO] [stdout]    |                           ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `v`
[INFO] [stdout]   --> src/flat/compile/clause.rs:78:37
[INFO] [stdout]    |
[INFO] [stdout] 78 |             FlatTerm::Variable(Some(v)) => unimplemented!(),
[INFO] [stdout]    |                                     ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `code`
[INFO] [stdout]   --> src/flat/compile/clause.rs:68:5
[INFO] [stdout]    |
[INFO] [stdout] 68 |     code: &mut Vec<Instruction>,
[INFO] [stdout]    |     ^^^^ help: if this is intentional, prefix it with an underscore: `_code`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `seen`
[INFO] [stdout]   --> src/flat/compile/clause.rs:69:5
[INFO] [stdout]    |
[INFO] [stdout] 69 |     seen: &mut HashSet<usize>,
[INFO] [stdout]    |     ^^^^ help: if this is intentional, prefix it with an underscore: `_seen`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `vars`
[INFO] [stdout]   --> src/flat/compile/clause.rs:70:5
[INFO] [stdout]    |
[INFO] [stdout] 70 |     vars: &mut HashMap<Variable, Location>,
[INFO] [stdout]    |     ^^^^ help: if this is intentional, prefix it with an underscore: `_vars`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `permanent`
[INFO] [stdout]   --> src/flat/compile/clause.rs:71:5
[INFO] [stdout]    |
[INFO] [stdout] 71 |     permanent: &HashMap<Variable, usize>,
[INFO] [stdout]    |     ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_permanent`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]   --> src/flat/compile/clause.rs:94:39
[INFO] [stdout]    |
[INFO] [stdout] 94 |             Term::Structure(Structure(a, ref ts)) => unimplemented!(),
[INFO] [stdout]    |                                       ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ts`
[INFO] [stdout]   --> src/flat/compile/clause.rs:94:46
[INFO] [stdout]    |
[INFO] [stdout] 94 |             Term::Structure(Structure(a, ref ts)) => unimplemented!(),
[INFO] [stdout]    |                                              ^^ help: if this is intentional, prefix it with an underscore: `_ts`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `vars`
[INFO] [stdout]   --> src/flat/compile/clause.rs:87:5
[INFO] [stdout]    |
[INFO] [stdout] 87 |     vars: &mut HashMap<Variable, usize>,
[INFO] [stdout]    |     ^^^^ help: if this is intentional, prefix it with an underscore: `_vars`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `compile_head`
[INFO] [stdout]   --> src/flat/compile/clause.rs:67:4
[INFO] [stdout]    |
[INFO] [stdout] 67 | fn compile_head(
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `compile_body`
[INFO] [stdout]   --> src/flat/compile/clause.rs:84:4
[INFO] [stdout]    |
[INFO] [stdout] 84 | fn compile_body(
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `extract_term`
[INFO] [stdout]   --> src/flat/store.rs:57:12
[INFO] [stdout]    |
[INFO] [stdout] 57 |     pub fn extract_term(
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 27 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 23.61s
[INFO] running `Command { std: "docker" "inspect" "7f7b6cd64ca1f2974cd42c7f1238ba0cf1a1b8a436e1ca39bb850cf0bb3c7d77", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7f7b6cd64ca1f2974cd42c7f1238ba0cf1a1b8a436e1ca39bb850cf0bb3c7d77", kill_on_drop: false }`
[INFO] [stdout] 7f7b6cd64ca1f2974cd42c7f1238ba0cf1a1b8a436e1ca39bb850cf0bb3c7d77
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 17b243711470c58868ce61c8ee9670f6754437c86b0fb6953a656928cd0fceb6
[INFO] running `Command { std: "docker" "start" "-a" "17b243711470c58868ce61c8ee9670f6754437c86b0fb6953a656928cd0fceb6", kill_on_drop: false }`
[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/options.rs
[INFO] [stderr] * /opt/rustwide/workdir/src/bin/logger.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] 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]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated constant `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]*$").unwrap();
[INFO] [stderr] 106 | |         }
[INFO] [stderr]     | |_________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr]     = note: this warning originates in the macro `__lazy_static_create` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stderr]    --> src/common/mod.rs:178:1
[INFO] [stderr]     |
[INFO] [stderr] 178 | / lazy_static! {
[INFO] [stderr] 179 | |     static ref VARIABLE_NAME: Regex =
[INFO] [stderr] 180 | |         Regex::new("^(_[a-zA-Z_0-9]|[A-Z])[a-zA-Z_0-9]*$").unwrap();
[INFO] [stderr] 181 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in the macro `__lazy_static_create` (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: associated function is never used: `extract_term`
[INFO] [stderr]   --> src/flat/store.rs:57:12
[INFO] [stderr]    |
[INFO] [stderr] 57 |     pub fn extract_term(
[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: 31 warnings emitted
[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]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated constant `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]*$").unwrap();
[INFO] [stderr] 106 | |         }
[INFO] [stderr]     | |_________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr]     = note: this warning originates in the macro `__lazy_static_create` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stderr]    --> src/common/mod.rs:178:1
[INFO] [stderr]     |
[INFO] [stderr] 178 | / lazy_static! {
[INFO] [stderr] 179 | |     static ref VARIABLE_NAME: Regex =
[INFO] [stderr] 180 | |         Regex::new("^(_[a-zA-Z_0-9]|[A-Z])[a-zA-Z_0-9]*$").unwrap();
[INFO] [stderr] 181 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in the macro `__lazy_static_create` (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: associated function is never used: `extract_term`
[INFO] [stderr]   --> src/flat/store.rs:57:12
[INFO] [stderr]    |
[INFO] [stderr] 57 |     pub fn extract_term(
[INFO] [stderr]    |            ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 27 warnings emitted
[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]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated function `std::env::home_dir`: This function's behavior is unexpected and probably not what you want. Consider using a crate from crates.io 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: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/wam_tutorial_reconstruction-e291881ccde0af8c)
[INFO] [stdout] 
[INFO] [stdout] running 19 tests
[INFO] [stdout] test flat::compile::fact::tests::flattens_example_program ... ok
[INFO] [stdout] test unification::flatten::tests::flattens_example_query_term ... ok
[INFO] [stdout] test unification::flatten::tests::flattens_simple_terms ... ok
[INFO] [stdout] test unification::program::tests::compiles_example_term ... ok
[INFO] [stdout] test flat::compile::fact::tests::compiles_example_program ... ok
[INFO] [stdout] test common::tests::term_contains ... ok
[INFO] [stdout] test unification::tests::works ... ok
[INFO] [stdout] test unification::query::tests::compiles_example_term ... ok
[INFO] [stdout] test common::tests::parse_tests ... ok
[INFO] [stdout] test flat::tests::works_for_example_program ... FAILED
[INFO] [stdout] test flat::compile::clause::tests::figure_3_1 ... FAILED
[INFO] [stdout] test flat::compile::tests::compiles_example_conjunctive_program ... FAILED
[INFO] [stdout] test common::tests::prop::parse_tostring_for_atom ... ok
[INFO] [stdout] test common::tests::prop::parse_tostring_for_variable ... ok
[INFO] [stdout] test common::tests::prop::parse_tostring_for_functor ... ok
[INFO] [stdout] test unification::flatten::tests::flatten_term_doesnt_crash ... ok
[INFO] [stdout] test common::tests::prop::parse_tostring_for_term ... ok
[INFO] [stdout] test unification::tests::compile_query_idempotency ... ok
[INFO] [stdout] test common::tests::prop::parse_tostring_for_clause ... ok
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- flat::tests::works_for_example_program stdout ----
[INFO] [stdout] thread 'flat::tests::works_for_example_program' panicked at 'not implemented: instruction not implemented: allocate 2', src/flat/mod.rs:156:18
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x562ceb4a2950 - std::backtrace_rs::backtrace::libunwind::trace::h34055254b57d8e79
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/../../backtrace/src/backtrace/libunwind.rs:90:5
[INFO] [stdout]    1:     0x562ceb4a2950 - std::backtrace_rs::backtrace::trace_unsynchronized::h8f1e3fbd9afff6ec
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stdout]    2:     0x562ceb4a2950 - std::sys_common::backtrace::_print_fmt::h3a99a796b770c360
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/sys_common/backtrace.rs:67:5
[INFO] [stdout]    3:     0x562ceb4a2950 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h32d1f94a80615d18
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/sys_common/backtrace.rs:46:22
[INFO] [stdout]    4:     0x562ceb4c598c - core::fmt::write::h306731c068f7162c
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/core/src/fmt/mod.rs:1110:17
[INFO] [stdout]    5:     0x562ceb49f135 - std::io::Write::write_fmt::h87f19b0a2cd190bc
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/io/mod.rs:1588:15
[INFO] [stdout]    6:     0x562ceb4a4b0b - std::sys_common::backtrace::_print::h5abaa2601a852287
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/sys_common/backtrace.rs:49:5
[INFO] [stdout]    7:     0x562ceb4a4b0b - std::sys_common::backtrace::print::h8d81445442bb638f
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/sys_common/backtrace.rs:36:9
[INFO] [stdout]    8:     0x562ceb4a4b0b - std::panicking::default_hook::{{closure}}::hcfe804496a9fa747
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:208:50
[INFO] [stdout]    9:     0x562ceb4a461c - std::panicking::default_hook::hbea8e3ccf2ba8901
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:222:9
[INFO] [stdout]   10:     0x562ceb4a51d4 - std::panicking::rust_panic_with_hook::h7ee9e1a2d0f8975a
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:622:17
[INFO] [stdout]   11:     0x562ceb4a4cb7 - std::panicking::begin_panic_handler::{{closure}}::h8ab3b4491718b2c7
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:519:13
[INFO] [stdout]   12:     0x562ceb4a2e4c - std::sys_common::backtrace::__rust_end_short_backtrace::hd489062ffa586a9f
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/sys_common/backtrace.rs:141:18
[INFO] [stdout]   13:     0x562ceb4a4c19 - rust_begin_unwind
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:515:5
[INFO] [stdout]   14:     0x562ceb186811 - core::panicking::panic_fmt::hca6330e3e14086b4
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/core/src/panicking.rs:92:14
[INFO] [stdout]   15:     0x562ceb1c8b5f - wam_tutorial_reconstruction::flat::Machine::run_instruction::h00ef184b13877374
[INFO] [stdout]                                at /opt/rustwide/workdir/src/flat/mod.rs:156:18
[INFO] [stdout]   16:     0x562ceb1c9ecc - <wam_tutorial_reconstruction::flat::Machine as wam_tutorial_reconstruction::Machine>::run_query::h2e8139d02b798431
[INFO] [stdout]                                at /opt/rustwide/workdir/src/flat/mod.rs:225:22
[INFO] [stdout]   17:     0x562ceb252a15 - wam_tutorial_reconstruction::flat::tests::works_for_example_program::h846052d4fd2efdb7
[INFO] [stdout]                                at /opt/rustwide/workdir/src/flat/mod.rs:266:23
[INFO] [stdout]   18:     0x562ceb25279a - wam_tutorial_reconstruction::flat::tests::works_for_example_program::{{closure}}::haf9354b69fa1c750
[INFO] [stdout]                                at /opt/rustwide/workdir/src/flat/mod.rs:262:5
[INFO] [stdout]   19:     0x562ceb1e98ce - core::ops::function::FnOnce::call_once::h92223949ec0b2377
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/core/src/ops/function.rs:227:5
[INFO] [stdout]   20:     0x562ceb28dd73 - core::ops::function::FnOnce::call_once::h152e7e439ff59e19
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/core/src/ops/function.rs:227:5
[INFO] [stdout]   21:     0x562ceb28dd73 - test::__rust_begin_short_backtrace::h0908f3b1fdbb72ab
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/test/src/lib.rs:577:5
[INFO] [stdout]   22:     0x562ceb28c830 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hf6d2a51e5587546c
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/alloc/src/boxed.rs:1575:9
[INFO] [stdout]   23:     0x562ceb28c830 - <std::panic::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h8af660f3a89ef593
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panic.rs:347:9
[INFO] [stdout]   24:     0x562ceb28c830 - std::panicking::try::do_call::hd36aef60f84b6d36
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:401:40
[INFO] [stdout]   25:     0x562ceb28c830 - std::panicking::try::h9932b4480e69817c
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:365:19
[INFO] [stdout]   26:     0x562ceb28c830 - std::panic::catch_unwind::h6aa177099cfff5f8
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panic.rs:434:14
[INFO] [stdout]   27:     0x562ceb28c830 - test::run_test_in_process::h5884d6f2d99e20c3
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/test/src/lib.rs:600:18
[INFO] [stdout]   28:     0x562ceb28c830 - test::run_test::run_test_inner::{{closure}}::h6fdc58c6d5f5b6e3
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/test/src/lib.rs:492:39
[INFO] [stdout]   29:     0x562ceb265ee2 - test::run_test::run_test_inner::{{closure}}::h408365d67a78ade8
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/test/src/lib.rs:519:37
[INFO] [stdout]   30:     0x562ceb265ee2 - std::sys_common::backtrace::__rust_begin_short_backtrace::hb560b77c4f701523
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/sys_common/backtrace.rs:125:18
[INFO] [stdout]   31:     0x562ceb269a98 - std::thread::Builder::spawn_unchecked::{{closure}}::{{closure}}::hf2e7831dad93c597
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/thread/mod.rs:481:17
[INFO] [stdout]   32:     0x562ceb269a98 - <std::panic::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::hd2e08783d8be4d02
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panic.rs:347:9
[INFO] [stdout]   33:     0x562ceb269a98 - std::panicking::try::do_call::h062597b7acfd6b82
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:401:40
[INFO] [stdout]   34:     0x562ceb269a98 - std::panicking::try::h0d7b79db04c14552
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:365:19
[INFO] [stdout]   35:     0x562ceb269a98 - std::panic::catch_unwind::hb01a0b5e7c8cd43b
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panic.rs:434:14
[INFO] [stdout]   36:     0x562ceb269a98 - std::thread::Builder::spawn_unchecked::{{closure}}::h5bde48cc887e0d1e
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/thread/mod.rs:480:30
[INFO] [stdout]   37:     0x562ceb269a98 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h745ea30807a29e55
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/core/src/ops/function.rs:227:5
[INFO] [stdout]   38:     0x562ceb4a9f37 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h7ece6cfefaff1005
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/alloc/src/boxed.rs:1575:9
[INFO] [stdout]   39:     0x562ceb4a9f37 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hb8b48e55c21f193e
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/alloc/src/boxed.rs:1575:9
[INFO] [stdout]   40:     0x562ceb4a9f37 - std::sys::unix::thread::Thread::new::thread_start::h8c7c4450dba62914
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/sys/unix/thread.rs:71:17
[INFO] [stdout]   41:     0x7f180bc69609 - start_thread
[INFO] [stdout]   42:     0x7f180ba3b293 - clone
[INFO] [stdout]   43:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] ---- flat::compile::clause::tests::figure_3_1 stdout ----
[INFO] [stdout] thread 'flat::compile::clause::tests::figure_3_1' panicked at 'assertion failed: `(left == right)`
[INFO] [stdout]   left: `([Allocate(2)], [Variable(Symbol("Y")), Variable(Symbol("Z"))])`,
[INFO] [stdout]  right: `([Allocate(2), GetVariable(Register(2), 0), GetVariable(Local(0), 1), PutValue(Register(2), 0), PutVariable(Local(1), 1), Call(Functor(Atom(Symbol("q")), 2)), PutValue(Local(1), 0), PutValue(Local(0), 1), Call(Functor(Atom(Symbol("r")), 2)), Deallocate], [Variable(Symbol("Y")), Variable(Symbol("Z"))])`', src/flat/compile/clause.rs:196:9
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x562ceb4a2950 - std::backtrace_rs::backtrace::libunwind::trace::h34055254b57d8e79
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/../../backtrace/src/backtrace/libunwind.rs:90:5
[INFO] [stdout]    1:     0x562ceb4a2950 - std::backtrace_rs::backtrace::trace_unsynchronized::h8f1e3fbd9afff6ec
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stdout]    2:     0x562ceb4a2950 - std::sys_common::backtrace::_print_fmt::h3a99a796b770c360
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/sys_common/backtrace.rs:67:5
[INFO] [stdout]    3:     0x562ceb4a2950 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h32d1f94a80615d18
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/sys_common/backtrace.rs:46:22
[INFO] [stdout]    4:     0x562ceb4c598c - core::fmt::write::h306731c068f7162c
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/core/src/fmt/mod.rs:1110:17
[INFO] [stdout]    5:     0x562ceb49f135 - std::io::Write::write_fmt::h87f19b0a2cd190bc
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/io/mod.rs:1588:15
[INFO] [stdout]    6:     0x562ceb4a4b0b - std::sys_common::backtrace::_print::h5abaa2601a852287
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/sys_common/backtrace.rs:49:5
[INFO] [stdout]    7:     0x562ceb4a4b0b - std::sys_common::backtrace::print::h8d81445442bb638f
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/sys_common/backtrace.rs:36:9
[INFO] [stdout]    8:     0x562ceb4a4b0b - std::panicking::default_hook::{{closure}}::hcfe804496a9fa747
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:208:50
[INFO] [stdout]    9:     0x562ceb4a461c - std::panicking::default_hook::hbea8e3ccf2ba8901
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:222:9
[INFO] [stdout]   10:     0x562ceb4a51d4 - std::panicking::rust_panic_with_hook::h7ee9e1a2d0f8975a
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:622:17
[INFO] [stdout]   11:     0x562ceb4a4cb7 - std::panicking::begin_panic_handler::{{closure}}::h8ab3b4491718b2c7
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:519:13
[INFO] [stdout]   12:     0x562ceb4a2e4c - std::sys_common::backtrace::__rust_end_short_backtrace::hd489062ffa586a9f
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/sys_common/backtrace.rs:141:18
[INFO] [stdout]   13:     0x562ceb4a4c19 - rust_begin_unwind
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:515:5
[INFO] [stdout]   14:     0x562ceb186811 - core::panicking::panic_fmt::hca6330e3e14086b4
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/core/src/panicking.rs:92:14
[INFO] [stdout]   15:     0x562ceb4c3fc8 - core::panicking::assert_failed_inner::h33b45280069a80ed
[INFO] [stdout]   16:     0x562ceb24f2ea - core::panicking::assert_failed::hc9d323ef4f00120c
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/core/src/panicking.rs:117:5
[INFO] [stdout]   17:     0x562ceb1f3efb - wam_tutorial_reconstruction::flat::compile::clause::tests::figure_3_1::h8f4904c9d65664f7
[INFO] [stdout]                                at /opt/rustwide/workdir/src/flat/compile/clause.rs:196:9
[INFO] [stdout]   18:     0x562ceb1f2f0a - wam_tutorial_reconstruction::flat::compile::clause::tests::figure_3_1::{{closure}}::hbca3e538de6a2fdc
[INFO] [stdout]                                at /opt/rustwide/workdir/src/flat/compile/clause.rs:170:5
[INFO] [stdout]   19:     0x562ceb1e9b8e - core::ops::function::FnOnce::call_once::he056cdbe2279d55c
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/core/src/ops/function.rs:227:5
[INFO] [stdout]   20:     0x562ceb28dd73 - core::ops::function::FnOnce::call_once::h152e7e439ff59e19
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/core/src/ops/function.rs:227:5
[INFO] [stdout]   21:     0x562ceb28dd73 - test::__rust_begin_short_backtrace::h0908f3b1fdbb72ab
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/test/src/lib.rs:577:5
[INFO] [stdout]   22:     0x562ceb28c830 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hf6d2a51e5587546c
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/alloc/src/boxed.rs:1575:9
[INFO] [stdout]   23:     0x562ceb28c830 - <std::panic::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h8af660f3a89ef593
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panic.rs:347:9
[INFO] [stdout]   24:     0x562ceb28c830 - std::panicking::try::do_call::hd36aef60f84b6d36
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:401:40
[INFO] [stdout]   25:     0x562ceb28c830 - std::panicking::try::h9932b4480e69817c
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:365:19
[INFO] [stdout]   26:     0x562ceb28c830 - std::panic::catch_unwind::h6aa177099cfff5f8
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panic.rs:434:14
[INFO] [stdout]   27:     0x562ceb28c830 - test::run_test_in_process::h5884d6f2d99e20c3
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/test/src/lib.rs:600:18
[INFO] [stdout]   28:     0x562ceb28c830 - test::run_test::run_test_inner::{{closure}}::h6fdc58c6d5f5b6e3
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/test/src/lib.rs:492:39
[INFO] [stdout]   29:     0x562ceb265ee2 - test::run_test::run_test_inner::{{closure}}::h408365d67a78ade8
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/test/src/lib.rs:519:37
[INFO] [stdout]   30:     0x562ceb265ee2 - std::sys_common::backtrace::__rust_begin_short_backtrace::hb560b77c4f701523
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/sys_common/backtrace.rs:125:18
[INFO] [stdout]   31:     0x562ceb269a98 - std::thread::Builder::spawn_unchecked::{{closure}}::{{closure}}::hf2e7831dad93c597
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/thread/mod.rs:481:17
[INFO] [stdout]   32:     0x562ceb269a98 - <std::panic::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::hd2e08783d8be4d02
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panic.rs:347:9
[INFO] [stdout]   33:     0x562ceb269a98 - std::panicking::try::do_call::h062597b7acfd6b82
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:401:40
[INFO] [stdout]   34:     0x562ceb269a98 - std::panicking::try::h0d7b79db04c14552
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:365:19
[INFO] [stdout]   35:     0x562ceb269a98 - std::panic::catch_unwind::hb01a0b5e7c8cd43b
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panic.rs:434:14
[INFO] [stdout]   36:     0x562ceb269a98 - std::thread::Builder::spawn_unchecked::{{closure}}::h5bde48cc887e0d1e
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/thread/mod.rs:480:30
[INFO] [stdout]   37:     0x562ceb269a98 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h745ea30807a29e55
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/core/src/ops/function.rs:227:5
[INFO] [stdout]   38:     0x562ceb4a9f37 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h7ece6cfefaff1005
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/alloc/src/boxed.rs:1575:9
[INFO] [stdout]   39:     0x562ceb4a9f37 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hb8b48e55c21f193e
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/alloc/src/boxed.rs:1575:9
[INFO] [stdout]   40:     0x562ceb4a9f37 - std::sys::unix::thread::Thread::new::thread_start::h8c7c4450dba62914
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/sys/unix/thread.rs:71:17
[INFO] [stdout]   41:     0x7f180bc69609 - start_thread
[INFO] [stdout]   42:     0x7f180ba3b293 - clone
[INFO] [stdout]   43:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] ---- flat::compile::tests::compiles_example_conjunctive_program stdout ----
[INFO] [stdout] thread 'flat::compile::tests::compiles_example_conjunctive_program' panicked at 'assertion failed: `(left == right)`
[INFO] [stdout]   left: `[Allocate(2)]`,
[INFO] [stdout]  right: `[Allocate(2), Call(Functor(Atom(Symbol("q")), 2)), Call(Functor(Atom(Symbol("r")), 2)), Deallocate]`', src/flat/compile/mod.rs:85:9
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x562ceb4a2950 - std::backtrace_rs::backtrace::libunwind::trace::h34055254b57d8e79
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/../../backtrace/src/backtrace/libunwind.rs:90:5
[INFO] [stdout]    1:     0x562ceb4a2950 - std::backtrace_rs::backtrace::trace_unsynchronized::h8f1e3fbd9afff6ec
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stdout]    2:     0x562ceb4a2950 - std::sys_common::backtrace::_print_fmt::h3a99a796b770c360
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/sys_common/backtrace.rs:67:5
[INFO] [stdout]    3:     0x562ceb4a2950 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h32d1f94a80615d18
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/sys_common/backtrace.rs:46:22
[INFO] [stdout]    4:     0x562ceb4c598c - core::fmt::write::h306731c068f7162c
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/core/src/fmt/mod.rs:1110:17
[INFO] [stdout]    5:     0x562ceb49f135 - std::io::Write::write_fmt::h87f19b0a2cd190bc
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/io/mod.rs:1588:15
[INFO] [stdout]    6:     0x562ceb4a4b0b - std::sys_common::backtrace::_print::h5abaa2601a852287
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/sys_common/backtrace.rs:49:5
[INFO] [stdout]    7:     0x562ceb4a4b0b - std::sys_common::backtrace::print::h8d81445442bb638f
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/sys_common/backtrace.rs:36:9
[INFO] [stdout]    8:     0x562ceb4a4b0b - std::panicking::default_hook::{{closure}}::hcfe804496a9fa747
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:208:50
[INFO] [stdout]    9:     0x562ceb4a461c - std::panicking::default_hook::hbea8e3ccf2ba8901
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:222:9
[INFO] [stdout]   10:     0x562ceb4a51d4 - std::panicking::rust_panic_with_hook::h7ee9e1a2d0f8975a
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:622:17
[INFO] [stdout]   11:     0x562ceb4a4cb7 - std::panicking::begin_panic_handler::{{closure}}::h8ab3b4491718b2c7
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:519:13
[INFO] [stdout]   12:     0x562ceb4a2e4c - std::sys_common::backtrace::__rust_end_short_backtrace::hd489062ffa586a9f
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/sys_common/backtrace.rs:141:18
[INFO] [stdout]   13:     0x562ceb4a4c19 - rust_begin_unwind
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:515:5
[INFO] [stdout]   14:     0x562ceb186811 - core::panicking::panic_fmt::hca6330e3e14086b4
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/core/src/panicking.rs:92:14
[INFO] [stdout]   15:     0x562ceb4c3fc8 - core::panicking::assert_failed_inner::h33b45280069a80ed
[INFO] [stdout]   16:     0x562ceb24f1ca - core::panicking::assert_failed::h8d7b5640ba7eca8a
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/core/src/panicking.rs:117:5
[INFO] [stdout]   17:     0x562ceb25dbdb - wam_tutorial_reconstruction::flat::compile::tests::compiles_example_conjunctive_program::h0d857d65bb124e58
[INFO] [stdout]                                at /opt/rustwide/workdir/src/flat/compile/mod.rs:85:9
[INFO] [stdout]   18:     0x562ceb25d07a - wam_tutorial_reconstruction::flat::compile::tests::compiles_example_conjunctive_program::{{closure}}::hc0e297ab09cbf8c5
[INFO] [stdout]                                at /opt/rustwide/workdir/src/flat/compile/mod.rs:59:5
[INFO] [stdout]   19:     0x562ceb1e999e - core::ops::function::FnOnce::call_once::h9c002046dc1666bf
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/core/src/ops/function.rs:227:5
[INFO] [stdout]   20:     0x562ceb28dd73 - core::ops::function::FnOnce::call_once::h152e7e439ff59e19
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/core/src/ops/function.rs:227:5
[INFO] [stdout]   21:     0x562ceb28dd73 - test::__rust_begin_short_backtrace::h0908f3b1fdbb72ab
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/test/src/lib.rs:577:5
[INFO] [stdout]   22:     0x562ceb28c830 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hf6d2a51e5587546c
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/alloc/src/boxed.rs:1575:9
[INFO] [stdout]   23:     0x562ceb28c830 - <std::panic::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h8af660f3a89ef593
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panic.rs:347:9
[INFO] [stdout]   24:     0x562ceb28c830 - std::panicking::try::do_call::hd36aef60f84b6d36
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:401:40
[INFO] [stdout]   25:     0x562ceb28c830 - std::panicking::try::h9932b4480e69817c
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:365:19
[INFO] [stdout]   26:     0x562ceb28c830 - std::panic::catch_unwind::h6aa177099cfff5f8
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panic.rs:434:14
[INFO] [stdout]   27:     0x562ceb28c830 - test::run_test_in_process::h5884d6f2d99e20c3
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/test/src/lib.rs:600:18
[INFO] [stdout]   28:     0x562ceb28c830 - test::run_test::run_test_inner::{{closure}}::h6fdc58c6d5f5b6e3
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/test/src/lib.rs:492:39
[INFO] [stdout]   29:     0x562ceb265ee2 - test::run_test::run_test_inner::{{closure}}::h408365d67a78ade8
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/test/src/lib.rs:519:37
[INFO] [stdout]   30:     0x562ceb265ee2 - std::sys_common::backtrace::__rust_begin_short_backtrace::hb560b77c4f701523
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/sys_common/backtrace.rs:125:18
[INFO] [stdout]   31:     0x562ceb269a98 - std::thread::Builder::spawn_unchecked::{{closure}}::{{closure}}::hf2e7831dad93c597
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/thread/mod.rs:481:17
[INFO] [stdout]   32:     0x562ceb269a98 - <std::panic::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::hd2e08783d8be4d02
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panic.rs:347:9
[INFO] [stdout]   33:     0x562ceb269a98 - std::panicking::try::do_call::h062597b7acfd6b82
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:401:40
[INFO] [stdout]   34:     0x562ceb269a98 - std::panicking::try::h0d7b79db04c14552
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:365:19
[INFO] [stdout]   35:     0x562ceb269a98 - std::panic::catch_unwind::hb01a0b5e7c8cd43b
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panic.rs:434:14
[INFO] [stdout]   36:     0x562ceb269a98 - std::thread::Builder::spawn_unchecked::{{closure}}::h5bde48cc887e0d1e
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/thread/mod.rs:480:30
[INFO] [stdout]   37:     0x562ceb269a98 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h745ea30807a29e55
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/core/src/ops/function.rs:227:5
[INFO] [stdout]   38:     0x562ceb4a9f37 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h7ece6cfefaff1005
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/alloc/src/boxed.rs:1575:9
[INFO] [stdout]   39:     0x562ceb4a9f37 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hb8b48e55c21f193e
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/alloc/src/boxed.rs:1575:9
[INFO] [stdout]   40:     0x562ceb4a9f37 - std::sys::unix::thread::Thread::new::thread_start::h8c7c4450dba62914
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/sys/unix/thread.rs:71:17
[INFO] [stdout]   41:     0x7f180bc69609 - start_thread
[INFO] [stdout]   42:     0x7f180ba3b293 - clone
[INFO] [stdout]   43:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     flat::compile::clause::tests::figure_3_1
[INFO] [stdout]     flat::compile::tests::compiles_example_conjunctive_program
[INFO] [stdout]     flat::tests::works_for_example_program
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 16 passed; 3 failed; 0 ignored; 0 measured; 0 filtered out; finished in 3.44s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass '--lib'
[INFO] running `Command { std: "docker" "inspect" "17b243711470c58868ce61c8ee9670f6754437c86b0fb6953a656928cd0fceb6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "17b243711470c58868ce61c8ee9670f6754437c86b0fb6953a656928cd0fceb6", kill_on_drop: false }`
[INFO] [stdout] 17b243711470c58868ce61c8ee9670f6754437c86b0fb6953a656928cd0fceb6
