[INFO] updating cached repository https://github.com/beoboo/palladium [INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"` [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 212fc40b2abf752b29653cc43686d23f06159886 [INFO] testing beoboo/palladium against beta-2020-06-03 for beta-1.45-1 [INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbeoboo%2Fpalladium" "/workspace/builds/worker-1/source"` [INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/beoboo/palladium on toolchain beta-2020-06-03 [INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking git repo https://github.com/beoboo/palladium [INFO] finished tweaking git repo https://github.com/beoboo/palladium [INFO] tweaked toml for git repo https://github.com/beoboo/palladium written to /workspace/builds/worker-1/source/Cargo.toml [INFO] crate git repo https://github.com/beoboo/palladium already has a lockfile, it will not be regenerated [INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-06-03" "build" "--frozen"` [INFO] [stdout] a57cc160a72ea43af1d50d92a05217883925aed02b429986239311d1a824c9af [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `"docker" "start" "-a" "a57cc160a72ea43af1d50d92a05217883925aed02b429986239311d1a824c9af"` [INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted [INFO] [stderr] Compiling memchr v2.2.1 [INFO] [stderr] Compiling nom v4.2.3 [INFO] [stderr] Compiling palladium v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] warning: unused doc comment [INFO] [stderr] --> src/operator_parsers.rs:5:1 [INFO] [stderr] | [INFO] [stderr] 5 | /// Parses the "+" operator [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ rustdoc does not generate documentation for macro invocations [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_doc_comments)]` on by default [INFO] [stderr] = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion [INFO] [stderr] [INFO] [stderr] warning: unused doc comment [INFO] [stderr] --> src/operator_parsers.rs:17:1 [INFO] [stderr] | [INFO] [stderr] 17 | /// Parses the "-" operator [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ rustdoc does not generate documentation for macro invocations [INFO] [stderr] | [INFO] [stderr] = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion [INFO] [stderr] [INFO] [stderr] warning: unused doc comment [INFO] [stderr] --> src/operator_parsers.rs:29:1 [INFO] [stderr] | [INFO] [stderr] 29 | /// Parses the "*" operator [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ rustdoc does not generate documentation for macro invocations [INFO] [stderr] | [INFO] [stderr] = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion [INFO] [stderr] [INFO] [stderr] warning: unused doc comment [INFO] [stderr] --> src/operator_parsers.rs:41:1 [INFO] [stderr] | [INFO] [stderr] 41 | /// Parses the "/" operator [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ rustdoc does not generate documentation for macro invocations [INFO] [stderr] | [INFO] [stderr] = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion [INFO] [stderr] [INFO] [stderr] warning: unused doc comment [INFO] [stderr] --> src/operator_parsers.rs:53:1 [INFO] [stderr] | [INFO] [stderr] 53 | /// Looks for any of the operands [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ rustdoc does not generate documentation for macro invocations [INFO] [stderr] | [INFO] [stderr] = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion [INFO] [stderr] [INFO] [stderr] warning: unused doc comment [INFO] [stderr] --> src/operand_parsers.rs:6:1 [INFO] [stderr] | [INFO] [stderr] 6 | /// Parses an integer [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^ rustdoc does not generate documentation for macro invocations [INFO] [stderr] | [INFO] [stderr] = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion [INFO] [stderr] [INFO] [stderr] warning: unused doc comment [INFO] [stderr] --> src/operand_parsers.rs:27:1 [INFO] [stderr] | [INFO] [stderr] 27 | /// Parser that looks for any operand [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ rustdoc does not generate documentation for macro invocations [INFO] [stderr] | [INFO] [stderr] = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion [INFO] [stderr] [INFO] [stderr] warning: unused import: `super::*` [INFO] [stderr] --> src/operator_parsers.rs:66:9 [INFO] [stderr] | [INFO] [stderr] 66 | use super::*; [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `nom::types::CompleteStr` [INFO] [stderr] --> src/operator_parsers.rs:67:9 [INFO] [stderr] | [INFO] [stderr] 67 | use nom::types::CompleteStr; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `crate::tokens::Token` [INFO] [stderr] --> src/operator_parsers.rs:68:9 [INFO] [stderr] | [INFO] [stderr] 68 | use crate::tokens::Token; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `super::*` [INFO] [stderr] --> src/operand_parsers.rs:37:9 [INFO] [stderr] | [INFO] [stderr] 37 | use super::*; [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `nom::types::CompleteStr` [INFO] [stderr] --> src/operand_parsers.rs:38:9 [INFO] [stderr] | [INFO] [stderr] 38 | use nom::types::CompleteStr; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `crate::tokens::Token` [INFO] [stderr] --> src/operand_parsers.rs:39:9 [INFO] [stderr] | [INFO] [stderr] 39 | use crate::tokens::Token; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `super::*` [INFO] [stderr] --> src/program_parsers.rs:20:9 [INFO] [stderr] | [INFO] [stderr] 20 | use super::*; [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `AdditionOperator` [INFO] [stderr] --> src/tokens.rs:3:5 [INFO] [stderr] | [INFO] [stderr] 3 | AdditionOperator, [INFO] [stderr] | ^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `SubtractionOperator` [INFO] [stderr] --> src/tokens.rs:4:5 [INFO] [stderr] | [INFO] [stderr] 4 | SubtractionOperator, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `MultiplicationOperator` [INFO] [stderr] --> src/tokens.rs:5:5 [INFO] [stderr] | [INFO] [stderr] 5 | MultiplicationOperator, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `DivisionOperator` [INFO] [stderr] --> src/tokens.rs:6:5 [INFO] [stderr] | [INFO] [stderr] 6 | DivisionOperator, [INFO] [stderr] | ^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Integer` [INFO] [stderr] --> src/tokens.rs:7:5 [INFO] [stderr] | [INFO] [stderr] 7 | Integer{ value: i64 }, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Expression` [INFO] [stderr] --> src/tokens.rs:8:5 [INFO] [stderr] | [INFO] [stderr] 8 | Expression{ left: Box, op: Box, right: Box }, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Program` [INFO] [stderr] --> src/tokens.rs:9:5 [INFO] [stderr] | [INFO] [stderr] 9 | Program{ expressions: Vec } [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `new` [INFO] [stderr] --> src/visitor.rs:15:12 [INFO] [stderr] | [INFO] [stderr] 15 | pub fn new() -> Compiler { [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `generate_test_program` [INFO] [stderr] --> src/visitor.rs:72:8 [INFO] [stderr] | [INFO] [stderr] 72 | fn generate_test_program() -> Token { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: 23 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 4.64s [INFO] running `"docker" "inspect" "a57cc160a72ea43af1d50d92a05217883925aed02b429986239311d1a824c9af"` [INFO] running `"docker" "rm" "-f" "a57cc160a72ea43af1d50d92a05217883925aed02b429986239311d1a824c9af"` [INFO] [stdout] a57cc160a72ea43af1d50d92a05217883925aed02b429986239311d1a824c9af [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-06-03" "test" "--frozen" "--no-run"` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 050f1a88c744aa26a1ffe238e9ac340165e791aaedd4159d8a4803ef856e3285 [INFO] running `"docker" "start" "-a" "050f1a88c744aa26a1ffe238e9ac340165e791aaedd4159d8a4803ef856e3285"` [INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted [INFO] [stderr] Compiling palladium v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] warning: unused doc comment [INFO] [stderr] --> src/operator_parsers.rs:5:1 [INFO] [stderr] | [INFO] [stderr] 5 | /// Parses the "+" operator [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ rustdoc does not generate documentation for macro invocations [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_doc_comments)]` on by default [INFO] [stderr] = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion [INFO] [stderr] [INFO] [stderr] warning: unused doc comment [INFO] [stderr] --> src/operator_parsers.rs:17:1 [INFO] [stderr] | [INFO] [stderr] 17 | /// Parses the "-" operator [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ rustdoc does not generate documentation for macro invocations [INFO] [stderr] | [INFO] [stderr] = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion [INFO] [stderr] [INFO] [stderr] warning: unused doc comment [INFO] [stderr] --> src/operator_parsers.rs:29:1 [INFO] [stderr] | [INFO] [stderr] 29 | /// Parses the "*" operator [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ rustdoc does not generate documentation for macro invocations [INFO] [stderr] | [INFO] [stderr] = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion [INFO] [stderr] [INFO] [stderr] warning: unused doc comment [INFO] [stderr] --> src/operator_parsers.rs:41:1 [INFO] [stderr] | [INFO] [stderr] 41 | /// Parses the "/" operator [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ rustdoc does not generate documentation for macro invocations [INFO] [stderr] | [INFO] [stderr] = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion [INFO] [stderr] [INFO] [stderr] warning: unused doc comment [INFO] [stderr] --> src/operator_parsers.rs:53:1 [INFO] [stderr] | [INFO] [stderr] 53 | /// Looks for any of the operands [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ rustdoc does not generate documentation for macro invocations [INFO] [stderr] | [INFO] [stderr] = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion [INFO] [stderr] [INFO] [stderr] warning: unused doc comment [INFO] [stderr] --> src/operand_parsers.rs:6:1 [INFO] [stderr] | [INFO] [stderr] 6 | /// Parses an integer [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^ rustdoc does not generate documentation for macro invocations [INFO] [stderr] | [INFO] [stderr] = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion [INFO] [stderr] [INFO] [stderr] warning: unused doc comment [INFO] [stderr] --> src/operand_parsers.rs:27:1 [INFO] [stderr] | [INFO] [stderr] 27 | /// Parser that looks for any operand [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ rustdoc does not generate documentation for macro invocations [INFO] [stderr] | [INFO] [stderr] = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion [INFO] [stderr] [INFO] [stderr] warning: unused variable: `tree` [INFO] [stderr] --> src/program_parsers.rs:27:17 [INFO] [stderr] | [INFO] [stderr] 27 | let (_, tree) = result.unwrap(); [INFO] [stderr] | ^^^^ help: if this is intentional, prefix it with an underscore: `_tree` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: 8 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 1.43s [INFO] running `"docker" "inspect" "050f1a88c744aa26a1ffe238e9ac340165e791aaedd4159d8a4803ef856e3285"` [INFO] running `"docker" "rm" "-f" "050f1a88c744aa26a1ffe238e9ac340165e791aaedd4159d8a4803ef856e3285"` [INFO] [stdout] 050f1a88c744aa26a1ffe238e9ac340165e791aaedd4159d8a4803ef856e3285 [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-06-03" "test" "--frozen"` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 99e423e0c65eb971daffedae8325afe24aa1455ee3863302dd59b24c5131b8f9 [INFO] running `"docker" "start" "-a" "99e423e0c65eb971daffedae8325afe24aa1455ee3863302dd59b24c5131b8f9"` [INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted [INFO] [stderr] warning: unused doc comment [INFO] [stderr] --> src/operator_parsers.rs:5:1 [INFO] [stderr] | [INFO] [stderr] 5 | /// Parses the "+" operator [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ rustdoc does not generate documentation for macro invocations [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_doc_comments)]` on by default [INFO] [stderr] = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion [INFO] [stderr] [INFO] [stderr] warning: unused doc comment [INFO] [stderr] --> src/operator_parsers.rs:17:1 [INFO] [stderr] | [INFO] [stderr] 17 | /// Parses the "-" operator [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ rustdoc does not generate documentation for macro invocations [INFO] [stderr] | [INFO] [stderr] = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion [INFO] [stderr] [INFO] [stderr] warning: unused doc comment [INFO] [stderr] --> src/operator_parsers.rs:29:1 [INFO] [stderr] | [INFO] [stderr] 29 | /// Parses the "*" operator [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ rustdoc does not generate documentation for macro invocations [INFO] [stderr] | [INFO] [stderr] = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion [INFO] [stderr] [INFO] [stderr] warning: unused doc comment [INFO] [stderr] --> src/operator_parsers.rs:41:1 [INFO] [stderr] | [INFO] [stderr] 41 | /// Parses the "/" operator [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ rustdoc does not generate documentation for macro invocations [INFO] [stderr] | [INFO] [stderr] = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion [INFO] [stderr] [INFO] [stderr] warning: unused doc comment [INFO] [stderr] --> src/operator_parsers.rs:53:1 [INFO] [stderr] | [INFO] [stderr] 53 | /// Looks for any of the operands [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ rustdoc does not generate documentation for macro invocations [INFO] [stderr] | [INFO] [stderr] = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion [INFO] [stderr] [INFO] [stderr] warning: unused doc comment [INFO] [stderr] --> src/operand_parsers.rs:6:1 [INFO] [stderr] | [INFO] [stderr] 6 | /// Parses an integer [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^ rustdoc does not generate documentation for macro invocations [INFO] [stderr] | [INFO] [stderr] = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion [INFO] [stderr] [INFO] [stderr] warning: unused doc comment [INFO] [stderr] --> src/operand_parsers.rs:27:1 [INFO] [stderr] | [INFO] [stderr] 27 | /// Parser that looks for any operand [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ rustdoc does not generate documentation for macro invocations [INFO] [stderr] | [INFO] [stderr] = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion [INFO] [stderr] [INFO] [stderr] warning: unused variable: `tree` [INFO] [stderr] --> src/program_parsers.rs:27:17 [INFO] [stderr] | [INFO] [stderr] 27 | let (_, tree) = result.unwrap(); [INFO] [stderr] | ^^^^ help: if this is intentional, prefix it with an underscore: `_tree` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: 8 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.10s [INFO] [stderr] Running /opt/rustwide/target/debug/deps/palladium-def03078bac229b5 [INFO] [stdout] [INFO] [stdout] running 9 tests [INFO] [stdout] test operator_parsers::tests::test_parse_division_operator ... ok [INFO] [stdout] test operator_parsers::tests::test_parse_subtraction_operator ... ok [INFO] [stdout] test operator_parsers::tests::test_parse_addition_operator ... ok [INFO] [stdout] test operator_parsers::tests::test_parse_multiplication_operator ... ok [INFO] [stdout] test operand_parsers::tests::test_parse_integer ... ok [INFO] [stdout] test program_parsers::tests::test_parse_program ... ok [INFO] [stdout] test operator_parsers::tests::test_parse_operator ... ok [INFO] [stdout] test visitor::tests::test_visit_addition_token ... ok [INFO] [stdout] test operand_parsers::tests::test_parse_operand ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 9 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out [INFO] [stdout] [INFO] running `"docker" "inspect" "99e423e0c65eb971daffedae8325afe24aa1455ee3863302dd59b24c5131b8f9"` [INFO] running `"docker" "rm" "-f" "99e423e0c65eb971daffedae8325afe24aa1455ee3863302dd59b24c5131b8f9"` [INFO] [stdout] 99e423e0c65eb971daffedae8325afe24aa1455ee3863302dd59b24c5131b8f9