[INFO] cloning repository https://github.com/AlexDikelsky/fp-interpreter [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/AlexDikelsky/fp-interpreter" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAlexDikelsky%2Ffp-interpreter", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAlexDikelsky%2Ffp-interpreter'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] af1be6b163d94234473f48054103869d22fb0320 [INFO] testing AlexDikelsky/fp-interpreter against beta-2022-04-10 for beta-1.61-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAlexDikelsky%2Ffp-interpreter" "/workspace/builds/worker-26/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-26/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/AlexDikelsky/fp-interpreter on toolchain beta-2022-04-10 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/AlexDikelsky/fp-interpreter [INFO] finished tweaking git repo https://github.com/AlexDikelsky/fp-interpreter [INFO] tweaked toml for git repo https://github.com/AlexDikelsky/fp-interpreter written to /workspace/builds/worker-26/source/Cargo.toml [INFO] crate git repo https://github.com/AlexDikelsky/fp-interpreter already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] a2294ca2c6a53cf14ab680f4e593257b9444c693568178d2435dc9a4c9c922cc [INFO] running `Command { std: "docker" "start" "-a" "a2294ca2c6a53cf14ab680f4e593257b9444c693568178d2435dc9a4c9c922cc", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "a2294ca2c6a53cf14ab680f4e593257b9444c693568178d2435dc9a4c9c922cc", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a2294ca2c6a53cf14ab680f4e593257b9444c693568178d2435dc9a4c9c922cc", kill_on_drop: false }` [INFO] [stdout] a2294ca2c6a53cf14ab680f4e593257b9444c693568178d2435dc9a4c9c922cc [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 1c569cbcedae3a4282e8eafdb7b885d2f76b5c0deed974f66ef9c64666cd81c3 [INFO] running `Command { std: "docker" "start" "-a" "1c569cbcedae3a4282e8eafdb7b885d2f76b5c0deed974f66ef9c64666cd81c3", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling memchr v2.3.4 [INFO] [stderr] Compiling once_cell v1.7.2 [INFO] [stderr] Compiling regex-syntax v0.6.22 [INFO] [stderr] Compiling itertools v0.10.0 [INFO] [stderr] Compiling thread_local v1.1.3 [INFO] [stderr] Compiling aho-corasick v0.7.15 [INFO] [stderr] Compiling regex v1.4.3 [INFO] [stderr] Compiling fp v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/bool_fns.rs:28:45 [INFO] [stdout] | [INFO] [stdout] 28 | fn bool_fn<'a>(x: Option, f: Box bool>) -> Option { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: use `dyn` [INFO] [stdout] | [INFO] [stdout] 28 - fn bool_fn<'a>(x: Option, f: Box bool>) -> Option { [INFO] [stdout] 28 + fn bool_fn<'a>(x: Option, f: Box bool>) -> Option { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/main.rs:49:21 [INFO] [stdout] | [INFO] [stdout] 49 | let fs: Vec usize>> = vec![Box::new(p), Box::new(|x| x + 2)]; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: use `dyn` [INFO] [stdout] | [INFO] [stdout] 49 - let fs: Vec usize>> = vec![Box::new(p), Box::new(|x| x + 2)]; [INFO] [stdout] 49 + let fs: Vec usize>> = vec![Box::new(p), Box::new(|x| x + 2)]; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `x` [INFO] [stdout] --> src/functional_forms.rs:78:19 [INFO] [stdout] | [INFO] [stdout] 78 | Box::new(|x| None) [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_x` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Object` [INFO] [stdout] --> src/sets.rs:8:5 [INFO] [stdout] | [INFO] [stdout] 8 | Object(Option>), [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] note: `Set` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] --> src/sets.rs:6:10 [INFO] [stdout] | [INFO] [stdout] 6 | #[derive(Debug)] [INFO] [stdout] | ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Function` [INFO] [stdout] --> src/sets.rs:9:5 [INFO] [stdout] | [INFO] [stdout] 9 | Function, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] note: `Set` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] --> src/sets.rs:6:10 [INFO] [stdout] | [INFO] [stdout] 6 | #[derive(Debug)] [INFO] [stdout] | ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `FunctionalForm` [INFO] [stdout] --> src/sets.rs:10:5 [INFO] [stdout] | [INFO] [stdout] 10 | FunctionalForm, [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] note: `Set` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] --> src/sets.rs:6:10 [INFO] [stdout] | [INFO] [stdout] 6 | #[derive(Debug)] [INFO] [stdout] | ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Definition` [INFO] [stdout] --> src/sets.rs:11:5 [INFO] [stdout] | [INFO] [stdout] 11 | Definition [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] note: `Set` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] --> src/sets.rs:6:10 [INFO] [stdout] | [INFO] [stdout] 6 | #[derive(Debug)] [INFO] [stdout] | ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 7 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 6.05s [INFO] running `Command { std: "docker" "inspect" "1c569cbcedae3a4282e8eafdb7b885d2f76b5c0deed974f66ef9c64666cd81c3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1c569cbcedae3a4282e8eafdb7b885d2f76b5c0deed974f66ef9c64666cd81c3", kill_on_drop: false }` [INFO] [stdout] 1c569cbcedae3a4282e8eafdb7b885d2f76b5c0deed974f66ef9c64666cd81c3 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] dde9c1af79d850fe05cef88a595f69db5c85f56c312618fb53a2d57809e99be0 [INFO] running `Command { std: "docker" "start" "-a" "dde9c1af79d850fe05cef88a595f69db5c85f56c312618fb53a2d57809e99be0", kill_on_drop: false }` [INFO] [stderr] Compiling fp v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/bool_fns.rs:28:45 [INFO] [stdout] | [INFO] [stdout] 28 | fn bool_fn<'a>(x: Option, f: Box bool>) -> Option { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: use `dyn` [INFO] [stdout] | [INFO] [stdout] 28 - fn bool_fn<'a>(x: Option, f: Box bool>) -> Option { [INFO] [stdout] 28 + fn bool_fn<'a>(x: Option, f: Box bool>) -> Option { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/main.rs:49:21 [INFO] [stdout] | [INFO] [stdout] 49 | let fs: Vec usize>> = vec![Box::new(p), Box::new(|x| x + 2)]; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: use `dyn` [INFO] [stdout] | [INFO] [stdout] 49 - let fs: Vec usize>> = vec![Box::new(p), Box::new(|x| x + 2)]; [INFO] [stdout] 49 + let fs: Vec usize>> = vec![Box::new(p), Box::new(|x| x + 2)]; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `x` [INFO] [stdout] --> src/functional_forms.rs:78:19 [INFO] [stdout] | [INFO] [stdout] 78 | Box::new(|x| None) [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_x` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Object` [INFO] [stdout] --> src/sets.rs:8:5 [INFO] [stdout] | [INFO] [stdout] 8 | Object(Option>), [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] note: `Set` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] --> src/sets.rs:6:10 [INFO] [stdout] | [INFO] [stdout] 6 | #[derive(Debug)] [INFO] [stdout] | ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Function` [INFO] [stdout] --> src/sets.rs:9:5 [INFO] [stdout] | [INFO] [stdout] 9 | Function, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] note: `Set` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] --> src/sets.rs:6:10 [INFO] [stdout] | [INFO] [stdout] 6 | #[derive(Debug)] [INFO] [stdout] | ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `FunctionalForm` [INFO] [stdout] --> src/sets.rs:10:5 [INFO] [stdout] | [INFO] [stdout] 10 | FunctionalForm, [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] note: `Set` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] --> src/sets.rs:6:10 [INFO] [stdout] | [INFO] [stdout] 6 | #[derive(Debug)] [INFO] [stdout] | ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Definition` [INFO] [stdout] --> src/sets.rs:11:5 [INFO] [stdout] | [INFO] [stdout] 11 | Definition [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] note: `Set` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] --> src/sets.rs:6:10 [INFO] [stdout] | [INFO] [stdout] 6 | #[derive(Debug)] [INFO] [stdout] | ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 7 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.68s [INFO] [stderr] Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/fp-6093142e8617e82b) [INFO] running `Command { std: "docker" "inspect" "dde9c1af79d850fe05cef88a595f69db5c85f56c312618fb53a2d57809e99be0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "dde9c1af79d850fe05cef88a595f69db5c85f56c312618fb53a2d57809e99be0", kill_on_drop: false }` [INFO] [stdout] dde9c1af79d850fe05cef88a595f69db5c85f56c312618fb53a2d57809e99be0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 3c93e6fc69a36c7867b5dfa2ffd331a0382c5abe81c4b33d8f0491d2afda9be2 [INFO] running `Command { std: "docker" "start" "-a" "3c93e6fc69a36c7867b5dfa2ffd331a0382c5abe81c4b33d8f0491d2afda9be2", kill_on_drop: false }` [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/bool_fns.rs:28:45 [INFO] [stderr] | [INFO] [stderr] 28 | fn bool_fn<'a>(x: Option, f: Box bool>) -> Option { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stderr] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stderr] = note: for more information, see [INFO] [stderr] help: use `dyn` [INFO] [stderr] | [INFO] [stderr] 28 - fn bool_fn<'a>(x: Option, f: Box bool>) -> Option { [INFO] [stderr] 28 + fn bool_fn<'a>(x: Option, f: Box bool>) -> Option { [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/main.rs:49:21 [INFO] [stderr] | [INFO] [stderr] 49 | let fs: Vec usize>> = vec![Box::new(p), Box::new(|x| x + 2)]; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stderr] = note: for more information, see [INFO] [stderr] help: use `dyn` [INFO] [stderr] | [INFO] [stderr] 49 - let fs: Vec usize>> = vec![Box::new(p), Box::new(|x| x + 2)]; [INFO] [stderr] 49 + let fs: Vec usize>> = vec![Box::new(p), Box::new(|x| x + 2)]; [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: unused variable: `x` [INFO] [stderr] --> src/functional_forms.rs:78:19 [INFO] [stderr] | [INFO] [stderr] 78 | Box::new(|x| None) [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_x` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Object` [INFO] [stderr] --> src/sets.rs:8:5 [INFO] [stderr] | [INFO] [stderr] 8 | Object(Option>), [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] note: `Set` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stderr] --> src/sets.rs:6:10 [INFO] [stderr] | [INFO] [stderr] 6 | #[derive(Debug)] [INFO] [stderr] | ^^^^^ [INFO] [stderr] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Function` [INFO] [stderr] --> src/sets.rs:9:5 [INFO] [stderr] | [INFO] [stderr] 9 | Function, [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] note: `Set` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stderr] --> src/sets.rs:6:10 [INFO] [stderr] | [INFO] [stderr] 6 | #[derive(Debug)] [INFO] [stderr] | ^^^^^ [INFO] [stderr] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `FunctionalForm` [INFO] [stderr] --> src/sets.rs:10:5 [INFO] [stderr] | [INFO] [stderr] 10 | FunctionalForm, [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] note: `Set` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stderr] --> src/sets.rs:6:10 [INFO] [stderr] | [INFO] [stderr] 6 | #[derive(Debug)] [INFO] [stderr] | ^^^^^ [INFO] [stderr] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Definition` [INFO] [stderr] --> src/sets.rs:11:5 [INFO] [stderr] | [INFO] [stderr] 11 | Definition [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] note: `Set` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stderr] --> src/sets.rs:6:10 [INFO] [stderr] | [INFO] [stderr] 6 | #[derive(Debug)] [INFO] [stderr] | ^^^^^ [INFO] [stderr] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: `fp` (bin "fp" test) generated 7 warnings [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.01s [INFO] [stderr] Running unittests src/main.rs (/opt/rustwide/target/debug/deps/fp-6093142e8617e82b) [INFO] [stdout] [INFO] [stdout] running 4 tests [INFO] [stdout] test bool_test::and_test ... ok [INFO] [stdout] test bool_test::b2 ... ok [INFO] [stdout] test bool_test::eq_test ... ok [INFO] [stdout] test bool_test::or_test ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "3c93e6fc69a36c7867b5dfa2ffd331a0382c5abe81c4b33d8f0491d2afda9be2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3c93e6fc69a36c7867b5dfa2ffd331a0382c5abe81c4b33d8f0491d2afda9be2", kill_on_drop: false }` [INFO] [stdout] 3c93e6fc69a36c7867b5dfa2ffd331a0382c5abe81c4b33d8f0491d2afda9be2