[INFO] cloning repository https://github.com/memoryleak47/herb-prover
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/memoryleak47/herb-prover" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmemoryleak47%2Fherb-prover", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmemoryleak47%2Fherb-prover'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] abd739e28e9bc95a3cc190830417a99667fb5925
[INFO] testing memoryleak47/herb-prover against master#d98a5da813da67eb189387b8ccfb73cf481275d8+rustflags=-Copt-level=3 for pr-138759-retry
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmemoryleak47%2Fherb-prover" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/memoryleak47/herb-prover
[INFO] finished tweaking git repo https://github.com/memoryleak47/herb-prover
[INFO] tweaked toml for git repo https://github.com/memoryleak47/herb-prover written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/memoryleak47/herb-prover on toolchain d98a5da813da67eb189387b8ccfb73cf481275d8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/memoryleak47/herb-prover already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fc4d0723697c100c4a01d06966207fa9d7a51902598df9e4148346e8b7f161d7
[INFO] running `Command { std: "docker" "start" "-a" "fc4d0723697c100c4a01d06966207fa9d7a51902598df9e4148346e8b7f161d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fc4d0723697c100c4a01d06966207fa9d7a51902598df9e4148346e8b7f161d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fc4d0723697c100c4a01d06966207fa9d7a51902598df9e4148346e8b7f161d7", kill_on_drop: false }`
[INFO] [stdout] fc4d0723697c100c4a01d06966207fa9d7a51902598df9e4148346e8b7f161d7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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=forbid -Copt-level=3" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d3680e303f607a8691e34e1c27ff3c9a8fd231f9648adaf50d9d5a14d9633455
[INFO] running `Command { std: "docker" "start" "-a" "d3680e303f607a8691e34e1c27ff3c9a8fd231f9648adaf50d9d5a14d9633455", kill_on_drop: false }`
[INFO] [stderr]    Compiling herb-prover v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `fmt::*`
[INFO] [stdout]   --> src/ast/mod.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub use fmt::*;
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `fmt::*`
[INFO] [stdout]  --> src/c/mod.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub use fmt::*;
[INFO] [stdout]   |         ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/ast/tokenize.rs:39:6
[INFO] [stdout]    |
[INFO] [stdout] 39 |     let mut push_str_token = |current_str: &mut String, tokens: &mut Vec<Token>| {
[INFO] [stdout]    |         ----^^^^^^^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `formula`
[INFO] [stdout]   --> src/ast/decompose.rs:22:10
[INFO] [stdout]    |
[INFO] [stdout] 22 | fn check(formula: &ASTFormula, signature: &ASTSignature) {
[INFO] [stdout]    |          ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_formula`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `signature`
[INFO] [stdout]   --> src/ast/decompose.rs:22:32
[INFO] [stdout]    |
[INFO] [stdout] 22 | fn check(formula: &ASTFormula, signature: &ASTSignature) {
[INFO] [stdout]    |                                ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_signature`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/ast/decompose.rs:36:6
[INFO] [stdout]    |
[INFO] [stdout] 36 |     let mut axiom_iter = p.stmts.iter().filter_map(|stmt| {
[INFO] [stdout]    |         ----^^^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `formula`
[INFO] [stdout]   --> src/ast/decompose.rs:67:24
[INFO] [stdout]    |
[INFO] [stdout] 67 |             ASTStatement::Axiom(formula) => {},
[INFO] [stdout]    |                                 ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_formula`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `formula`
[INFO] [stdout]   --> src/ast/decompose.rs:68:23
[INFO] [stdout]    |
[INFO] [stdout] 68 |             ASTStatement::Goal(formula) => {},
[INFO] [stdout]    |                                ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_formula`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]   --> src/c/unify.rs:27:7
[INFO] [stdout]    |
[INFO] [stdout] 27 |     for (x, t) in subst.iter_mut() {
[INFO] [stdout]    |          ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `ast::ASTTerm` is more private than the item `ast::ASTFormula::Predicate::1`
[INFO] [stdout]   --> src/ast/mod.rs:38:53
[INFO] [stdout]    |
[INFO] [stdout] 38 |     Predicate(/*predicate-ident*/ String, /*children*/ Vec<ASTTerm>),
[INFO] [stdout]    |                                                        ^^^^^^^^^^^^ field `ast::ASTFormula::Predicate::1` is reachable at visibility `pub`
[INFO] [stdout]    |
[INFO] [stdout] note: but type `ast::ASTTerm` is only usable at visibility `pub(self)`
[INFO] [stdout]   --> src/ast/mod.rs:48:1
[INFO] [stdout]    |
[INFO] [stdout] 48 | enum ASTTerm {
[INFO] [stdout]    | ^^^^^^^^^^^^
[INFO] [stdout]    = note: `#[warn(private_interfaces)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.23s
[INFO] running `Command { std: "docker" "inspect" "d3680e303f607a8691e34e1c27ff3c9a8fd231f9648adaf50d9d5a14d9633455", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d3680e303f607a8691e34e1c27ff3c9a8fd231f9648adaf50d9d5a14d9633455", kill_on_drop: false }`
[INFO] [stdout] d3680e303f607a8691e34e1c27ff3c9a8fd231f9648adaf50d9d5a14d9633455
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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=forbid -Copt-level=3" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ea73de46fbcdec27441497e4151831f7191b3a4eda8d11bb940ba1bc145be0c3
[INFO] running `Command { std: "docker" "start" "-a" "ea73de46fbcdec27441497e4151831f7191b3a4eda8d11bb940ba1bc145be0c3", kill_on_drop: false }`
[INFO] [stderr]    Compiling herb-prover v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `fmt::*`
[INFO] [stdout]   --> src/ast/mod.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub use fmt::*;
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `fmt::*`
[INFO] [stdout]  --> src/c/mod.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub use fmt::*;
[INFO] [stdout]   |         ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/ast/tokenize.rs:39:6
[INFO] [stdout]    |
[INFO] [stdout] 39 |     let mut push_str_token = |current_str: &mut String, tokens: &mut Vec<Token>| {
[INFO] [stdout]    |         ----^^^^^^^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `formula`
[INFO] [stdout]   --> src/ast/decompose.rs:22:10
[INFO] [stdout]    |
[INFO] [stdout] 22 | fn check(formula: &ASTFormula, signature: &ASTSignature) {
[INFO] [stdout]    |          ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_formula`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `signature`
[INFO] [stdout]   --> src/ast/decompose.rs:22:32
[INFO] [stdout]    |
[INFO] [stdout] 22 | fn check(formula: &ASTFormula, signature: &ASTSignature) {
[INFO] [stdout]    |                                ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_signature`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/ast/decompose.rs:36:6
[INFO] [stdout]    |
[INFO] [stdout] 36 |     let mut axiom_iter = p.stmts.iter().filter_map(|stmt| {
[INFO] [stdout]    |         ----^^^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `formula`
[INFO] [stdout]   --> src/ast/decompose.rs:67:24
[INFO] [stdout]    |
[INFO] [stdout] 67 |             ASTStatement::Axiom(formula) => {},
[INFO] [stdout]    |                                 ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_formula`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `formula`
[INFO] [stdout]   --> src/ast/decompose.rs:68:23
[INFO] [stdout]    |
[INFO] [stdout] 68 |             ASTStatement::Goal(formula) => {},
[INFO] [stdout]    |                                ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_formula`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]   --> src/c/unify.rs:27:7
[INFO] [stdout]    |
[INFO] [stdout] 27 |     for (x, t) in subst.iter_mut() {
[INFO] [stdout]    |          ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `ast::ASTTerm` is more private than the item `ast::ASTFormula::Predicate::1`
[INFO] [stdout]   --> src/ast/mod.rs:38:53
[INFO] [stdout]    |
[INFO] [stdout] 38 |     Predicate(/*predicate-ident*/ String, /*children*/ Vec<ASTTerm>),
[INFO] [stdout]    |                                                        ^^^^^^^^^^^^ field `ast::ASTFormula::Predicate::1` is reachable at visibility `pub`
[INFO] [stdout]    |
[INFO] [stdout] note: but type `ast::ASTTerm` is only usable at visibility `pub(self)`
[INFO] [stdout]   --> src/ast/mod.rs:48:1
[INFO] [stdout]    |
[INFO] [stdout] 48 | enum ASTTerm {
[INFO] [stdout]    | ^^^^^^^^^^^^
[INFO] [stdout]    = note: `#[warn(private_interfaces)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.50s
[INFO] running `Command { std: "docker" "inspect" "ea73de46fbcdec27441497e4151831f7191b3a4eda8d11bb940ba1bc145be0c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ea73de46fbcdec27441497e4151831f7191b3a4eda8d11bb940ba1bc145be0c3", kill_on_drop: false }`
[INFO] [stdout] ea73de46fbcdec27441497e4151831f7191b3a4eda8d11bb940ba1bc145be0c3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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=forbid -Copt-level=3" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] dc0909d5968387e9759dbf3c240941dcbfaaa34745710af2079e26a001c29031
[INFO] running `Command { std: "docker" "start" "-a" "dc0909d5968387e9759dbf3c240941dcbfaaa34745710af2079e26a001c29031", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `fmt::*`
[INFO] [stderr]   --> src/ast/mod.rs:10:9
[INFO] [stderr]    |
[INFO] [stderr] 10 | pub use fmt::*;
[INFO] [stderr]    |         ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `fmt::*`
[INFO] [stderr]  --> src/c/mod.rs:7:9
[INFO] [stderr]   |
[INFO] [stderr] 7 | pub use fmt::*;
[INFO] [stderr]   |         ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/ast/tokenize.rs:39:6
[INFO] [stderr]    |
[INFO] [stderr] 39 |     let mut push_str_token = |current_str: &mut String, tokens: &mut Vec<Token>| {
[INFO] [stderr]    |         ----^^^^^^^^^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `formula`
[INFO] [stderr]   --> src/ast/decompose.rs:22:10
[INFO] [stderr]    |
[INFO] [stderr] 22 | fn check(formula: &ASTFormula, signature: &ASTSignature) {
[INFO] [stderr]    |          ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_formula`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `signature`
[INFO] [stderr]   --> src/ast/decompose.rs:22:32
[INFO] [stderr]    |
[INFO] [stderr] 22 | fn check(formula: &ASTFormula, signature: &ASTSignature) {
[INFO] [stderr]    |                                ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_signature`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/ast/decompose.rs:36:6
[INFO] [stderr]    |
[INFO] [stderr] 36 |     let mut axiom_iter = p.stmts.iter().filter_map(|stmt| {
[INFO] [stderr]    |         ----^^^^^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `formula`
[INFO] [stderr]   --> src/ast/decompose.rs:67:24
[INFO] [stderr]    |
[INFO] [stderr] 67 |             ASTStatement::Axiom(formula) => {},
[INFO] [stderr]    |                                 ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_formula`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `formula`
[INFO] [stderr]   --> src/ast/decompose.rs:68:23
[INFO] [stderr]    |
[INFO] [stderr] 68 |             ASTStatement::Goal(formula) => {},
[INFO] [stderr]    |                                ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_formula`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]   --> src/c/unify.rs:27:7
[INFO] [stderr]    |
[INFO] [stderr] 27 |     for (x, t) in subst.iter_mut() {
[INFO] [stderr]    |          ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stderr] 
[INFO] [stderr] warning: type `ast::ASTTerm` is more private than the item `ast::ASTFormula::Predicate::1`
[INFO] [stderr]   --> src/ast/mod.rs:38:53
[INFO] [stderr]    |
[INFO] [stderr] 38 |     Predicate(/*predicate-ident*/ String, /*children*/ Vec<ASTTerm>),
[INFO] [stderr]    |                                                        ^^^^^^^^^^^^ field `ast::ASTFormula::Predicate::1` is reachable at visibility `pub`
[INFO] [stderr]    |
[INFO] [stderr] note: but type `ast::ASTTerm` is only usable at visibility `pub(self)`
[INFO] [stderr]   --> src/ast/mod.rs:48:1
[INFO] [stderr]    |
[INFO] [stderr] 48 | enum ASTTerm {
[INFO] [stderr]    | ^^^^^^^^^^^^
[INFO] [stderr]    = note: `#[warn(private_interfaces)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `herb-prover` (bin "herb-prover" test) generated 10 warnings (run `cargo fix --bin "herb-prover" --tests` to apply 4 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/herb_prover-51ae9da56ef0e3ef)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "dc0909d5968387e9759dbf3c240941dcbfaaa34745710af2079e26a001c29031", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dc0909d5968387e9759dbf3c240941dcbfaaa34745710af2079e26a001c29031", kill_on_drop: false }`
[INFO] [stdout] dc0909d5968387e9759dbf3c240941dcbfaaa34745710af2079e26a001c29031
