[INFO] cloning repository https://github.com/dylanbraithwaite/cubical
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dylanbraithwaite/cubical" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdylanbraithwaite%2Fcubical", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdylanbraithwaite%2Fcubical'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 50cc6aae7ede9dbef9753fda2ca289359298a3cb
[INFO] testing dylanbraithwaite/cubical against beta-2023-04-20 for beta-1.70-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdylanbraithwaite%2Fcubical" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dylanbraithwaite/cubical on toolchain beta-2023-04-20
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-04-20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/dylanbraithwaite/cubical
[INFO] finished tweaking git repo https://github.com/dylanbraithwaite/cubical
[INFO] tweaked toml for git repo https://github.com/dylanbraithwaite/cubical written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/dylanbraithwaite/cubical 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" "+beta-2023-04-20" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded cons-list v0.0.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-04-20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 14ecb590918f5cabc70b149a9da8e46fc759cfc55919797b61326fefb8d16650
[INFO] running `Command { std: "docker" "start" "-a" "14ecb590918f5cabc70b149a9da8e46fc759cfc55919797b61326fefb8d16650", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "14ecb590918f5cabc70b149a9da8e46fc759cfc55919797b61326fefb8d16650", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "14ecb590918f5cabc70b149a9da8e46fc759cfc55919797b61326fefb8d16650", kill_on_drop: false }`
[INFO] [stdout] 14ecb590918f5cabc70b149a9da8e46fc759cfc55919797b61326fefb8d16650
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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" "RUSTDOCFLAGS=--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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-04-20" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7b09d26f03940c5430f7123c4f5d5b048ceeca4ba14e3618dce087c9a215cb14
[INFO] running `Command { std: "docker" "start" "-a" "7b09d26f03940c5430f7123c4f5d5b048ceeca4ba14e3618dce087c9a215cb14", kill_on_drop: false }`
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling cons-list v0.0.3
[INFO] [stderr]    Compiling itertools v0.10.0
[INFO] [stderr]    Compiling cubical v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `ctx`
[INFO] [stdout]   --> src/ast/terms/glueing/glue_type.rs:32:24
[INFO] [stdout]    |
[INFO] [stdout] 32 |     fn normalise(self, ctx: &Context) -> Self {
[INFO] [stdout]    |                        ^^^ help: if this is intentional, prefix it with an underscore: `_ctx`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `expr`
[INFO] [stdout]   --> src/ast/terms/glueing/glue_type.rs:40:30
[INFO] [stdout]    |
[INFO] [stdout] 40 |     fn substitute_expr(self, expr: Expr, var: usize) -> Self {
[INFO] [stdout]    |                              ^^^^ help: if this is intentional, prefix it with an underscore: `_expr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `var`
[INFO] [stdout]   --> src/ast/terms/glueing/glue_type.rs:40:42
[INFO] [stdout]    |
[INFO] [stdout] 40 |     fn substitute_expr(self, expr: Expr, var: usize) -> Self {
[INFO] [stdout]    |                                          ^^^ help: if this is intentional, prefix it with an underscore: `_var`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `expr`
[INFO] [stdout]   --> src/ast/terms/glueing/glue_type.rs:46:34
[INFO] [stdout]    |
[INFO] [stdout] 46 |     fn substitute_interval(self, expr: IntervalDnf, var: usize) -> Self {
[INFO] [stdout]    |                                  ^^^^ help: if this is intentional, prefix it with an underscore: `_expr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `var`
[INFO] [stdout]   --> src/ast/terms/glueing/glue_type.rs:46:53
[INFO] [stdout]    |
[INFO] [stdout] 46 |     fn substitute_interval(self, expr: IntervalDnf, var: usize) -> Self {
[INFO] [stdout]    |                                                     ^^^ help: if this is intentional, prefix it with an underscore: `_var`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `start`
[INFO] [stdout]   --> src/ast/terms/glueing/glue_type.rs:52:40
[INFO] [stdout]    |
[INFO] [stdout] 52 |     fn increment_indices_from_by(self, start: usize, amount: usize) -> Self {
[INFO] [stdout]    |                                        ^^^^^ help: if this is intentional, prefix it with an underscore: `_start`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `amount`
[INFO] [stdout]   --> src/ast/terms/glueing/glue_type.rs:52:54
[INFO] [stdout]    |
[INFO] [stdout] 52 |     fn increment_indices_from_by(self, start: usize, amount: usize) -> Self {
[INFO] [stdout]    |                                                      ^^^^^^ help: if this is intentional, prefix it with an underscore: `_amount`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ctx`
[INFO] [stdout]   --> src/ast/terms/glueing/glue.rs:32:24
[INFO] [stdout]    |
[INFO] [stdout] 32 |     fn normalise(self, ctx: &Context) -> Self {
[INFO] [stdout]    |                        ^^^ help: if this is intentional, prefix it with an underscore: `_ctx`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `expr`
[INFO] [stdout]   --> src/ast/terms/glueing/glue.rs:40:30
[INFO] [stdout]    |
[INFO] [stdout] 40 |     fn substitute_expr(self, expr: Expr, var: usize) -> Self {
[INFO] [stdout]    |                              ^^^^ help: if this is intentional, prefix it with an underscore: `_expr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `var`
[INFO] [stdout]   --> src/ast/terms/glueing/glue.rs:40:42
[INFO] [stdout]    |
[INFO] [stdout] 40 |     fn substitute_expr(self, expr: Expr, var: usize) -> Self {
[INFO] [stdout]    |                                          ^^^ help: if this is intentional, prefix it with an underscore: `_var`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `expr`
[INFO] [stdout]   --> src/ast/terms/glueing/glue.rs:46:34
[INFO] [stdout]    |
[INFO] [stdout] 46 |     fn substitute_interval(self, expr: IntervalDnf, var: usize) -> Self {
[INFO] [stdout]    |                                  ^^^^ help: if this is intentional, prefix it with an underscore: `_expr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `var`
[INFO] [stdout]   --> src/ast/terms/glueing/glue.rs:46:53
[INFO] [stdout]    |
[INFO] [stdout] 46 |     fn substitute_interval(self, expr: IntervalDnf, var: usize) -> Self {
[INFO] [stdout]    |                                                     ^^^ help: if this is intentional, prefix it with an underscore: `_var`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `start`
[INFO] [stdout]   --> src/ast/terms/glueing/glue.rs:52:40
[INFO] [stdout]    |
[INFO] [stdout] 52 |     fn increment_indices_from_by(self, start: usize, amount: usize) -> Self {
[INFO] [stdout]    |                                        ^^^^^ help: if this is intentional, prefix it with an underscore: `_start`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `amount`
[INFO] [stdout]   --> src/ast/terms/glueing/glue.rs:52:54
[INFO] [stdout]    |
[INFO] [stdout] 52 |     fn increment_indices_from_by(self, start: usize, amount: usize) -> Self {
[INFO] [stdout]    |                                                      ^^^^^^ help: if this is intentional, prefix it with an underscore: `_amount`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ctx`
[INFO] [stdout]   --> src/ast/terms/glueing/unglue.rs:32:24
[INFO] [stdout]    |
[INFO] [stdout] 32 |     fn normalise(self, ctx: &Context) -> Self {
[INFO] [stdout]    |                        ^^^ help: if this is intentional, prefix it with an underscore: `_ctx`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `expr`
[INFO] [stdout]   --> src/ast/terms/glueing/unglue.rs:40:30
[INFO] [stdout]    |
[INFO] [stdout] 40 |     fn substitute_expr(self, expr: Expr, var: usize) -> Self {
[INFO] [stdout]    |                              ^^^^ help: if this is intentional, prefix it with an underscore: `_expr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `var`
[INFO] [stdout]   --> src/ast/terms/glueing/unglue.rs:40:42
[INFO] [stdout]    |
[INFO] [stdout] 40 |     fn substitute_expr(self, expr: Expr, var: usize) -> Self {
[INFO] [stdout]    |                                          ^^^ help: if this is intentional, prefix it with an underscore: `_var`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `expr`
[INFO] [stdout]   --> src/ast/terms/glueing/unglue.rs:46:34
[INFO] [stdout]    |
[INFO] [stdout] 46 |     fn substitute_interval(self, expr: IntervalDnf, var: usize) -> Self {
[INFO] [stdout]    |                                  ^^^^ help: if this is intentional, prefix it with an underscore: `_expr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `var`
[INFO] [stdout]   --> src/ast/terms/glueing/unglue.rs:46:53
[INFO] [stdout]    |
[INFO] [stdout] 46 |     fn substitute_interval(self, expr: IntervalDnf, var: usize) -> Self {
[INFO] [stdout]    |                                                     ^^^ help: if this is intentional, prefix it with an underscore: `_var`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `start`
[INFO] [stdout]   --> src/ast/terms/glueing/unglue.rs:52:40
[INFO] [stdout]    |
[INFO] [stdout] 52 |     fn increment_indices_from_by(self, start: usize, amount: usize) -> Self {
[INFO] [stdout]    |                                        ^^^^^ help: if this is intentional, prefix it with an underscore: `_start`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `amount`
[INFO] [stdout]   --> src/ast/terms/glueing/unglue.rs:52:54
[INFO] [stdout]    |
[INFO] [stdout] 52 |     fn increment_indices_from_by(self, start: usize, amount: usize) -> Self {
[INFO] [stdout]    |                                                      ^^^^^^ help: if this is intentional, prefix it with an underscore: `_amount`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/ast/terms/glueing/glue_type.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout] 14 | impl GlueType {
[INFO] [stdout]    | ------------- associated function in this implementation
[INFO] [stdout] 15 |     pub fn new(faces: FaceSystem, space: Term) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/ast/terms/glueing/glue.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout] 14 | impl Glue {
[INFO] [stdout]    | --------- associated function in this implementation
[INFO] [stdout] 15 |     pub fn new(faces: FaceSystem, term: Term) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/ast/terms/glueing/unglue.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout] 14 | impl Unglue {
[INFO] [stdout]    | ----------- associated function in this implementation
[INFO] [stdout] 15 |     pub fn new(faces: FaceSystem, term: Term) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `GlueType`, `Contr`, `Equiv`, `Pres`, `Glue`, and `Unglue` are never constructed
[INFO] [stdout]   --> src/ast/expr.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub enum Expr {
[INFO] [stdout]    |          ---- variants in this enum
[INFO] [stdout] ...
[INFO] [stdout] 19 |     GlueType(GlueType),
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 31 |     Contr(ContrElim),
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 32 |     Equiv(EquivElim),
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 33 |     Pres(Pres),
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 34 |     Glue(Glue),
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 35 |     Unglue(Unglue),
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Expr` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple associated functions are never used
[INFO] [stdout]    --> src/ast/expr.rs:281:12
[INFO] [stdout]     |
[INFO] [stdout] 222 | impl Expr {
[INFO] [stdout]     | --------- associated functions in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 281 |     pub fn transp(space: Term, witness: Term) -> Expr {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 289 |     pub fn contr_prop(space: Term) -> Expr {
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 303 |     pub fn contr_elim(proof: Term, system: FaceSystem) -> Expr {
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 307 |     pub fn sigma(left_type: Term, right_type: Term) -> Expr {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 323 |     pub fn pres(function: Term, face_system: FaceSystem, witness: Term) -> Expr {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 330 |     fn equiv_prop_inner(source: Term, target:Term, func: Term) -> Expr {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 350 |     pub fn equiv_prop(source: Term, target: Term, func: Term) -> Expr {
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 358 |     pub fn equiv_type(source: Term, target: Term) -> Expr {
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 370 |     pub fn equiv_elim(equiv: Term, system: FaceSystem, witness: Term) -> Expr {
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 26 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.99s
[INFO] running `Command { std: "docker" "inspect" "7b09d26f03940c5430f7123c4f5d5b048ceeca4ba14e3618dce087c9a215cb14", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7b09d26f03940c5430f7123c4f5d5b048ceeca4ba14e3618dce087c9a215cb14", kill_on_drop: false }`
[INFO] [stdout] 7b09d26f03940c5430f7123c4f5d5b048ceeca4ba14e3618dce087c9a215cb14
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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" "RUSTDOCFLAGS=--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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-04-20" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3b9fa74270548aa1417ae1ea92a55ca6f3d8efacdb59ce2a28a60149e7f2c83b
[INFO] running `Command { std: "docker" "start" "-a" "3b9fa74270548aa1417ae1ea92a55ca6f3d8efacdb59ce2a28a60149e7f2c83b", kill_on_drop: false }`
[INFO] [stderr]    Compiling cubical v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `ctx`
[INFO] [stdout]   --> src/ast/terms/glueing/glue_type.rs:32:24
[INFO] [stdout]    |
[INFO] [stdout] 32 |     fn normalise(self, ctx: &Context) -> Self {
[INFO] [stdout]    |                        ^^^ help: if this is intentional, prefix it with an underscore: `_ctx`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `expr`
[INFO] [stdout]   --> src/ast/terms/glueing/glue_type.rs:40:30
[INFO] [stdout]    |
[INFO] [stdout] 40 |     fn substitute_expr(self, expr: Expr, var: usize) -> Self {
[INFO] [stdout]    |                              ^^^^ help: if this is intentional, prefix it with an underscore: `_expr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `var`
[INFO] [stdout]   --> src/ast/terms/glueing/glue_type.rs:40:42
[INFO] [stdout]    |
[INFO] [stdout] 40 |     fn substitute_expr(self, expr: Expr, var: usize) -> Self {
[INFO] [stdout]    |                                          ^^^ help: if this is intentional, prefix it with an underscore: `_var`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `expr`
[INFO] [stdout]   --> src/ast/terms/glueing/glue_type.rs:46:34
[INFO] [stdout]    |
[INFO] [stdout] 46 |     fn substitute_interval(self, expr: IntervalDnf, var: usize) -> Self {
[INFO] [stdout]    |                                  ^^^^ help: if this is intentional, prefix it with an underscore: `_expr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `var`
[INFO] [stdout]   --> src/ast/terms/glueing/glue_type.rs:46:53
[INFO] [stdout]    |
[INFO] [stdout] 46 |     fn substitute_interval(self, expr: IntervalDnf, var: usize) -> Self {
[INFO] [stdout]    |                                                     ^^^ help: if this is intentional, prefix it with an underscore: `_var`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `start`
[INFO] [stdout]   --> src/ast/terms/glueing/glue_type.rs:52:40
[INFO] [stdout]    |
[INFO] [stdout] 52 |     fn increment_indices_from_by(self, start: usize, amount: usize) -> Self {
[INFO] [stdout]    |                                        ^^^^^ help: if this is intentional, prefix it with an underscore: `_start`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `amount`
[INFO] [stdout]   --> src/ast/terms/glueing/glue_type.rs:52:54
[INFO] [stdout]    |
[INFO] [stdout] 52 |     fn increment_indices_from_by(self, start: usize, amount: usize) -> Self {
[INFO] [stdout]    |                                                      ^^^^^^ help: if this is intentional, prefix it with an underscore: `_amount`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ctx`
[INFO] [stdout]   --> src/ast/terms/glueing/glue.rs:32:24
[INFO] [stdout]    |
[INFO] [stdout] 32 |     fn normalise(self, ctx: &Context) -> Self {
[INFO] [stdout]    |                        ^^^ help: if this is intentional, prefix it with an underscore: `_ctx`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `expr`
[INFO] [stdout]   --> src/ast/terms/glueing/glue.rs:40:30
[INFO] [stdout]    |
[INFO] [stdout] 40 |     fn substitute_expr(self, expr: Expr, var: usize) -> Self {
[INFO] [stdout]    |                              ^^^^ help: if this is intentional, prefix it with an underscore: `_expr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `var`
[INFO] [stdout]   --> src/ast/terms/glueing/glue.rs:40:42
[INFO] [stdout]    |
[INFO] [stdout] 40 |     fn substitute_expr(self, expr: Expr, var: usize) -> Self {
[INFO] [stdout]    |                                          ^^^ help: if this is intentional, prefix it with an underscore: `_var`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `expr`
[INFO] [stdout]   --> src/ast/terms/glueing/glue.rs:46:34
[INFO] [stdout]    |
[INFO] [stdout] 46 |     fn substitute_interval(self, expr: IntervalDnf, var: usize) -> Self {
[INFO] [stdout]    |                                  ^^^^ help: if this is intentional, prefix it with an underscore: `_expr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `var`
[INFO] [stdout]   --> src/ast/terms/glueing/glue.rs:46:53
[INFO] [stdout]    |
[INFO] [stdout] 46 |     fn substitute_interval(self, expr: IntervalDnf, var: usize) -> Self {
[INFO] [stdout]    |                                                     ^^^ help: if this is intentional, prefix it with an underscore: `_var`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `start`
[INFO] [stdout]   --> src/ast/terms/glueing/glue.rs:52:40
[INFO] [stdout]    |
[INFO] [stdout] 52 |     fn increment_indices_from_by(self, start: usize, amount: usize) -> Self {
[INFO] [stdout]    |                                        ^^^^^ help: if this is intentional, prefix it with an underscore: `_start`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `amount`
[INFO] [stdout]   --> src/ast/terms/glueing/glue.rs:52:54
[INFO] [stdout]    |
[INFO] [stdout] 52 |     fn increment_indices_from_by(self, start: usize, amount: usize) -> Self {
[INFO] [stdout]    |                                                      ^^^^^^ help: if this is intentional, prefix it with an underscore: `_amount`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ctx`
[INFO] [stdout]   --> src/ast/terms/glueing/unglue.rs:32:24
[INFO] [stdout]    |
[INFO] [stdout] 32 |     fn normalise(self, ctx: &Context) -> Self {
[INFO] [stdout]    |                        ^^^ help: if this is intentional, prefix it with an underscore: `_ctx`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `expr`
[INFO] [stdout]   --> src/ast/terms/glueing/unglue.rs:40:30
[INFO] [stdout]    |
[INFO] [stdout] 40 |     fn substitute_expr(self, expr: Expr, var: usize) -> Self {
[INFO] [stdout]    |                              ^^^^ help: if this is intentional, prefix it with an underscore: `_expr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `var`
[INFO] [stdout]   --> src/ast/terms/glueing/unglue.rs:40:42
[INFO] [stdout]    |
[INFO] [stdout] 40 |     fn substitute_expr(self, expr: Expr, var: usize) -> Self {
[INFO] [stdout]    |                                          ^^^ help: if this is intentional, prefix it with an underscore: `_var`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `expr`
[INFO] [stdout]   --> src/ast/terms/glueing/unglue.rs:46:34
[INFO] [stdout]    |
[INFO] [stdout] 46 |     fn substitute_interval(self, expr: IntervalDnf, var: usize) -> Self {
[INFO] [stdout]    |                                  ^^^^ help: if this is intentional, prefix it with an underscore: `_expr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `var`
[INFO] [stdout]   --> src/ast/terms/glueing/unglue.rs:46:53
[INFO] [stdout]    |
[INFO] [stdout] 46 |     fn substitute_interval(self, expr: IntervalDnf, var: usize) -> Self {
[INFO] [stdout]    |                                                     ^^^ help: if this is intentional, prefix it with an underscore: `_var`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `start`
[INFO] [stdout]   --> src/ast/terms/glueing/unglue.rs:52:40
[INFO] [stdout]    |
[INFO] [stdout] 52 |     fn increment_indices_from_by(self, start: usize, amount: usize) -> Self {
[INFO] [stdout]    |                                        ^^^^^ help: if this is intentional, prefix it with an underscore: `_start`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `amount`
[INFO] [stdout]   --> src/ast/terms/glueing/unglue.rs:52:54
[INFO] [stdout]    |
[INFO] [stdout] 52 |     fn increment_indices_from_by(self, start: usize, amount: usize) -> Self {
[INFO] [stdout]    |                                                      ^^^^^^ help: if this is intentional, prefix it with an underscore: `_amount`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/ast/terms/glueing/glue_type.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout] 14 | impl GlueType {
[INFO] [stdout]    | ------------- associated function in this implementation
[INFO] [stdout] 15 |     pub fn new(faces: FaceSystem, space: Term) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/ast/terms/glueing/glue.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout] 14 | impl Glue {
[INFO] [stdout]    | --------- associated function in this implementation
[INFO] [stdout] 15 |     pub fn new(faces: FaceSystem, term: Term) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/ast/terms/glueing/unglue.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout] 14 | impl Unglue {
[INFO] [stdout]    | ----------- associated function in this implementation
[INFO] [stdout] 15 |     pub fn new(faces: FaceSystem, term: Term) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `GlueType`, `Contr`, `Equiv`, `Pres`, `Glue`, and `Unglue` are never constructed
[INFO] [stdout]   --> src/ast/expr.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub enum Expr {
[INFO] [stdout]    |          ---- variants in this enum
[INFO] [stdout] ...
[INFO] [stdout] 19 |     GlueType(GlueType),
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 31 |     Contr(ContrElim),
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 32 |     Equiv(EquivElim),
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 33 |     Pres(Pres),
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 34 |     Glue(Glue),
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 35 |     Unglue(Unglue),
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Expr` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple associated functions are never used
[INFO] [stdout]    --> src/ast/expr.rs:281:12
[INFO] [stdout]     |
[INFO] [stdout] 222 | impl Expr {
[INFO] [stdout]     | --------- associated functions in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 281 |     pub fn transp(space: Term, witness: Term) -> Expr {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 289 |     pub fn contr_prop(space: Term) -> Expr {
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 303 |     pub fn contr_elim(proof: Term, system: FaceSystem) -> Expr {
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 307 |     pub fn sigma(left_type: Term, right_type: Term) -> Expr {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 323 |     pub fn pres(function: Term, face_system: FaceSystem, witness: Term) -> Expr {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 330 |     fn equiv_prop_inner(source: Term, target:Term, func: Term) -> Expr {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 350 |     pub fn equiv_prop(source: Term, target: Term, func: Term) -> Expr {
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 358 |     pub fn equiv_type(source: Term, target: Term) -> Expr {
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 370 |     pub fn equiv_elim(equiv: Term, system: FaceSystem, witness: Term) -> Expr {
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 26 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.93s
[INFO] running `Command { std: "docker" "inspect" "3b9fa74270548aa1417ae1ea92a55ca6f3d8efacdb59ce2a28a60149e7f2c83b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3b9fa74270548aa1417ae1ea92a55ca6f3d8efacdb59ce2a28a60149e7f2c83b", kill_on_drop: false }`
[INFO] [stdout] 3b9fa74270548aa1417ae1ea92a55ca6f3d8efacdb59ce2a28a60149e7f2c83b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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" "RUSTDOCFLAGS=--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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-04-20" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] fd2c6b083af592399888f62a2319a09e44ef7a4079e05ce4051b3035b909a425
[INFO] running `Command { std: "docker" "start" "-a" "fd2c6b083af592399888f62a2319a09e44ef7a4079e05ce4051b3035b909a425", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `ctx`
[INFO] [stderr]   --> src/ast/terms/glueing/glue_type.rs:32:24
[INFO] [stderr]    |
[INFO] [stderr] 32 |     fn normalise(self, ctx: &Context) -> Self {
[INFO] [stderr]    |                        ^^^ help: if this is intentional, prefix it with an underscore: `_ctx`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `expr`
[INFO] [stderr]   --> src/ast/terms/glueing/glue_type.rs:40:30
[INFO] [stderr]    |
[INFO] [stderr] 40 |     fn substitute_expr(self, expr: Expr, var: usize) -> Self {
[INFO] [stderr]    |                              ^^^^ help: if this is intentional, prefix it with an underscore: `_expr`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `var`
[INFO] [stderr]   --> src/ast/terms/glueing/glue_type.rs:40:42
[INFO] [stderr]    |
[INFO] [stderr] 40 |     fn substitute_expr(self, expr: Expr, var: usize) -> Self {
[INFO] [stderr]    |                                          ^^^ help: if this is intentional, prefix it with an underscore: `_var`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `expr`
[INFO] [stderr]   --> src/ast/terms/glueing/glue_type.rs:46:34
[INFO] [stderr]    |
[INFO] [stderr] 46 |     fn substitute_interval(self, expr: IntervalDnf, var: usize) -> Self {
[INFO] [stderr]    |                                  ^^^^ help: if this is intentional, prefix it with an underscore: `_expr`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `var`
[INFO] [stderr]   --> src/ast/terms/glueing/glue_type.rs:46:53
[INFO] [stderr]    |
[INFO] [stderr] 46 |     fn substitute_interval(self, expr: IntervalDnf, var: usize) -> Self {
[INFO] [stderr]    |                                                     ^^^ help: if this is intentional, prefix it with an underscore: `_var`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `start`
[INFO] [stderr]   --> src/ast/terms/glueing/glue_type.rs:52:40
[INFO] [stderr]    |
[INFO] [stderr] 52 |     fn increment_indices_from_by(self, start: usize, amount: usize) -> Self {
[INFO] [stderr]    |                                        ^^^^^ help: if this is intentional, prefix it with an underscore: `_start`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `amount`
[INFO] [stderr]   --> src/ast/terms/glueing/glue_type.rs:52:54
[INFO] [stderr]    |
[INFO] [stderr] 52 |     fn increment_indices_from_by(self, start: usize, amount: usize) -> Self {
[INFO] [stderr]    |                                                      ^^^^^^ help: if this is intentional, prefix it with an underscore: `_amount`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `ctx`
[INFO] [stderr]   --> src/ast/terms/glueing/glue.rs:32:24
[INFO] [stderr]    |
[INFO] [stderr] 32 |     fn normalise(self, ctx: &Context) -> Self {
[INFO] [stderr]    |                        ^^^ help: if this is intentional, prefix it with an underscore: `_ctx`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `expr`
[INFO] [stderr]   --> src/ast/terms/glueing/glue.rs:40:30
[INFO] [stderr]    |
[INFO] [stderr] 40 |     fn substitute_expr(self, expr: Expr, var: usize) -> Self {
[INFO] [stderr]    |                              ^^^^ help: if this is intentional, prefix it with an underscore: `_expr`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `var`
[INFO] [stderr]   --> src/ast/terms/glueing/glue.rs:40:42
[INFO] [stderr]    |
[INFO] [stderr] 40 |     fn substitute_expr(self, expr: Expr, var: usize) -> Self {
[INFO] [stderr]    |                                          ^^^ help: if this is intentional, prefix it with an underscore: `_var`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `expr`
[INFO] [stderr]   --> src/ast/terms/glueing/glue.rs:46:34
[INFO] [stderr]    |
[INFO] [stderr] 46 |     fn substitute_interval(self, expr: IntervalDnf, var: usize) -> Self {
[INFO] [stderr]    |                                  ^^^^ help: if this is intentional, prefix it with an underscore: `_expr`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `var`
[INFO] [stderr]   --> src/ast/terms/glueing/glue.rs:46:53
[INFO] [stderr]    |
[INFO] [stderr] 46 |     fn substitute_interval(self, expr: IntervalDnf, var: usize) -> Self {
[INFO] [stderr]    |                                                     ^^^ help: if this is intentional, prefix it with an underscore: `_var`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `start`
[INFO] [stderr]   --> src/ast/terms/glueing/glue.rs:52:40
[INFO] [stderr]    |
[INFO] [stderr] 52 |     fn increment_indices_from_by(self, start: usize, amount: usize) -> Self {
[INFO] [stderr]    |                                        ^^^^^ help: if this is intentional, prefix it with an underscore: `_start`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `amount`
[INFO] [stderr]   --> src/ast/terms/glueing/glue.rs:52:54
[INFO] [stderr]    |
[INFO] [stderr] 52 |     fn increment_indices_from_by(self, start: usize, amount: usize) -> Self {
[INFO] [stderr]    |                                                      ^^^^^^ help: if this is intentional, prefix it with an underscore: `_amount`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `ctx`
[INFO] [stderr]   --> src/ast/terms/glueing/unglue.rs:32:24
[INFO] [stderr]    |
[INFO] [stderr] 32 |     fn normalise(self, ctx: &Context) -> Self {
[INFO] [stderr]    |                        ^^^ help: if this is intentional, prefix it with an underscore: `_ctx`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `expr`
[INFO] [stderr]   --> src/ast/terms/glueing/unglue.rs:40:30
[INFO] [stderr]    |
[INFO] [stderr] 40 |     fn substitute_expr(self, expr: Expr, var: usize) -> Self {
[INFO] [stderr]    |                              ^^^^ help: if this is intentional, prefix it with an underscore: `_expr`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `var`
[INFO] [stderr]   --> src/ast/terms/glueing/unglue.rs:40:42
[INFO] [stderr]    |
[INFO] [stderr] 40 |     fn substitute_expr(self, expr: Expr, var: usize) -> Self {
[INFO] [stderr]    |                                          ^^^ help: if this is intentional, prefix it with an underscore: `_var`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `expr`
[INFO] [stderr]   --> src/ast/terms/glueing/unglue.rs:46:34
[INFO] [stderr]    |
[INFO] [stderr] 46 |     fn substitute_interval(self, expr: IntervalDnf, var: usize) -> Self {
[INFO] [stderr]    |                                  ^^^^ help: if this is intentional, prefix it with an underscore: `_expr`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `var`
[INFO] [stderr]   --> src/ast/terms/glueing/unglue.rs:46:53
[INFO] [stderr]    |
[INFO] [stderr] 46 |     fn substitute_interval(self, expr: IntervalDnf, var: usize) -> Self {
[INFO] [stderr]    |                                                     ^^^ help: if this is intentional, prefix it with an underscore: `_var`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `start`
[INFO] [stderr]   --> src/ast/terms/glueing/unglue.rs:52:40
[INFO] [stderr]    |
[INFO] [stderr] 52 |     fn increment_indices_from_by(self, start: usize, amount: usize) -> Self {
[INFO] [stderr]    |                                        ^^^^^ help: if this is intentional, prefix it with an underscore: `_start`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `amount`
[INFO] [stderr]   --> src/ast/terms/glueing/unglue.rs:52:54
[INFO] [stderr]    |
[INFO] [stderr] 52 |     fn increment_indices_from_by(self, start: usize, amount: usize) -> Self {
[INFO] [stderr]    |                                                      ^^^^^^ help: if this is intentional, prefix it with an underscore: `_amount`
[INFO] [stderr] 
[INFO] [stderr] warning: associated function `new` is never used
[INFO] [stderr]   --> src/ast/terms/glueing/glue_type.rs:15:12
[INFO] [stderr]    |
[INFO] [stderr] 14 | impl GlueType {
[INFO] [stderr]    | ------------- associated function in this implementation
[INFO] [stderr] 15 |     pub fn new(faces: FaceSystem, space: Term) -> Self {
[INFO] [stderr]    |            ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function `new` is never used
[INFO] [stderr]   --> src/ast/terms/glueing/glue.rs:15:12
[INFO] [stderr]    |
[INFO] [stderr] 14 | impl Glue {
[INFO] [stderr]    | --------- associated function in this implementation
[INFO] [stderr] 15 |     pub fn new(faces: FaceSystem, term: Term) -> Self {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function `new` is never used
[INFO] [stderr]   --> src/ast/terms/glueing/unglue.rs:15:12
[INFO] [stderr]    |
[INFO] [stderr] 14 | impl Unglue {
[INFO] [stderr]    | ----------- associated function in this implementation
[INFO] [stderr] 15 |     pub fn new(faces: FaceSystem, term: Term) -> Self {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variants `GlueType`, `Contr`, `Equiv`, `Pres`, `Glue`, and `Unglue` are never constructed
[INFO] [stderr]   --> src/ast/expr.rs:19:5
[INFO] [stderr]    |
[INFO] [stderr] 10 | pub enum Expr {
[INFO] [stderr]    |          ---- variants in this enum
[INFO] [stderr] ...
[INFO] [stderr] 19 |     GlueType(GlueType),
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 31 |     Contr(ContrElim),
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr] 32 |     Equiv(EquivElim),
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr] 33 |     Pres(Pres),
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] 34 |     Glue(Glue),
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] 35 |     Unglue(Unglue),
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `Expr` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: multiple associated functions are never used
[INFO] [stderr]    --> src/ast/expr.rs:281:12
[INFO] [stderr]     |
[INFO] [stderr] 222 | impl Expr {
[INFO] [stderr]     | --------- associated functions in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 281 |     pub fn transp(space: Term, witness: Term) -> Expr {
[INFO] [stderr]     |            ^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 289 |     pub fn contr_prop(space: Term) -> Expr {
[INFO] [stderr]     |            ^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 303 |     pub fn contr_elim(proof: Term, system: FaceSystem) -> Expr {
[INFO] [stderr]     |            ^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 307 |     pub fn sigma(left_type: Term, right_type: Term) -> Expr {
[INFO] [stderr]     |            ^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 323 |     pub fn pres(function: Term, face_system: FaceSystem, witness: Term) -> Expr {
[INFO] [stderr]     |            ^^^^
[INFO] [stderr] ...
[INFO] [stderr] 330 |     fn equiv_prop_inner(source: Term, target:Term, func: Term) -> Expr {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 350 |     pub fn equiv_prop(source: Term, target: Term, func: Term) -> Expr {
[INFO] [stderr]     |            ^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 358 |     pub fn equiv_type(source: Term, target: Term) -> Expr {
[INFO] [stderr]     |            ^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 370 |     pub fn equiv_elim(equiv: Term, system: FaceSystem, witness: Term) -> Expr {
[INFO] [stderr]     |            ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `cubical` (bin "cubical" test) generated 26 warnings (run `cargo fix --bin "cubical" --tests` to apply 21 suggestions)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/cubical-4770a8fe13b3949c)
[INFO] [stdout] 
[INFO] [stdout] running 13 tests
[INFO] [stdout] test ast::terms::paths::path_app::test_normalise_path_app_to_endpoints ... ok
[INFO] [stdout] test interval::test_normalise_interval_to_zero ... ok
[INFO] [stdout] test syntax::test::test_app_left_assoc ... ok
[INFO] [stdout] test syntax::test::test_parenthesized_app ... ok
[INFO] [stdout] test syntax::test::test_lambda_right_assoc ... ok
[INFO] [stdout] test syntax::test::test_parse_interval_formula ... ok
[INFO] [stdout] test syntax::test::test_parse_lambda ... ok
[INFO] [stdout] test syntax::test::test_parse_comp ... ok
[INFO] [stdout] test syntax::test::test_parse_path ... ok
[INFO] [stdout] test syntax::test::test_parse_path_bind ... ok
[INFO] [stdout] test syntax::test::test_parse_pi ... ok
[INFO] [stdout] test syntax::test::test_parse_system ... ok
[INFO] [stdout] test ast::terms::face_systems::composition::test_normalise_composition_unit ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- ast::terms::face_systems::composition::test_normalise_composition_unit stdout ----
[INFO] [stdout] thread 'ast::terms::face_systems::composition::test_normalise_composition_unit' panicked at 'assertion failed: `(left == right)`
[INFO] [stdout]   left: `Var(Var { debruijn_index: 0 })`,
[INFO] [stdout]  right: `Var(Var { debruijn_index: 1 })`', src/ast/terms/face_systems/composition.rs:93:5
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x562ae2f5802a - std::backtrace_rs::backtrace::libunwind::trace::h2f05d0192276a8f6
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/../../backtrace/src/backtrace/libunwind.rs:93:5
[INFO] [stdout]    1:     0x562ae2f5802a - std::backtrace_rs::backtrace::trace_unsynchronized::hedc23dff7a1af150
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stdout]    2:     0x562ae2f5802a - std::sys_common::backtrace::_print_fmt::h17541ef7592f3ce2
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/sys_common/backtrace.rs:65:5
[INFO] [stdout]    3:     0x562ae2f5802a - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h20f75df5ab0c0792
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/sys_common/backtrace.rs:44:22
[INFO] [stdout]    4:     0x562ae2f7bcaf - core::fmt::write::h78109e6f466b3af6
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/core/src/fmt/mod.rs:1254:17
[INFO] [stdout]    5:     0x562ae2f55375 - std::io::Write::write_fmt::hd24bfb68a1b35a25
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/io/mod.rs:1698:15
[INFO] [stdout]    6:     0x562ae2f57df5 - std::sys_common::backtrace::_print::h8dac57a9f8fbf9a5
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/sys_common/backtrace.rs:47:5
[INFO] [stdout]    7:     0x562ae2f57df5 - std::sys_common::backtrace::print::hf9ecbf41d1aa712f
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/sys_common/backtrace.rs:34:9
[INFO] [stdout]    8:     0x562ae2f59aae - std::panicking::default_hook::{{closure}}::h04c07acfc84ca028
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/panicking.rs:269:22
[INFO] [stdout]    9:     0x562ae2f597e1 - std::panicking::default_hook::h01f6bb23e1eceb2c
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/panicking.rs:285:9
[INFO] [stdout]   10:     0x562ae2f2b81b - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h87fe9f7b2fd49e4c
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/alloc/src/boxed.rs:1987:9
[INFO] [stdout]   11:     0x562ae2f2b81b - test::test_main::{{closure}}::he94d679243a7531b
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/test/src/lib.rs:134:21
[INFO] [stdout]   12:     0x562ae2f5a194 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h3f2d6d8b14c4769f
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/alloc/src/boxed.rs:1987:9
[INFO] [stdout]   13:     0x562ae2f5a194 - std::panicking::rust_panic_with_hook::h2bb3722bbaf2f6df
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/panicking.rs:695:13
[INFO] [stdout]   14:     0x562ae2f59f09 - std::panicking::begin_panic_handler::{{closure}}::h91bc7f36a4be011b
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/panicking.rs:582:13
[INFO] [stdout]   15:     0x562ae2f58496 - std::sys_common::backtrace::__rust_end_short_backtrace::h8b3d3717114f9e59
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/sys_common/backtrace.rs:150:18
[INFO] [stdout]   16:     0x562ae2f59c62 - rust_begin_unwind
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/panicking.rs:578:5
[INFO] [stdout]   17:     0x562ae2e84ba3 - core::panicking::panic_fmt::hfd368e3fbdabea26
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/core/src/panicking.rs:67:14
[INFO] [stdout]   18:     0x562ae2e84f6f - core::panicking::assert_failed_inner::haef49168e1798a91
[INFO] [stdout]   19:     0x562ae2ee7ffa - core::panicking::assert_failed::h380397d6fb66c138
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/core/src/panicking.rs:228:5
[INFO] [stdout]   20:     0x562ae2eb81ae - cubical::ast::terms::face_systems::composition::test_normalise_composition_unit::h85091f16f8f7341d
[INFO] [stdout]                                at /opt/rustwide/workdir/src/ast/terms/face_systems/composition.rs:93:5
[INFO] [stdout]   21:     0x562ae2eb78d7 - cubical::ast::terms::face_systems::composition::test_normalise_composition_unit::{{closure}}::h7eecfd0ec406d837
[INFO] [stdout]                                at /opt/rustwide/workdir/src/ast/terms/face_systems/composition.rs:66:38
[INFO] [stdout]   22:     0x562ae2ef23f5 - core::ops::function::FnOnce::call_once::h272d89347e1e4ba5
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   23:     0x562ae2f306ef - core::ops::function::FnOnce::call_once::ha6a70e79f7481a7e
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   24:     0x562ae2f306ef - test::__rust_begin_short_backtrace::hce33033019b61e69
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/test/src/lib.rs:655:18
[INFO] [stdout]   25:     0x562ae2efdedc - test::run_test::{{closure}}::h858d3528838ae3e5
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/test/src/lib.rs:646:30
[INFO] [stdout]   26:     0x562ae2efdedc - core::ops::function::FnOnce::call_once{{vtable.shim}}::he8ac2b00f01ae79e
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   27:     0x562ae2f2f7c6 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h8093d25b522725ef
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/alloc/src/boxed.rs:1973:9
[INFO] [stdout]   28:     0x562ae2f2f7c6 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h5c334c204e4a3913
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/core/src/panic/unwind_safe.rs:271:9
[INFO] [stdout]   29:     0x562ae2f2f7c6 - std::panicking::try::do_call::ha8b740c7b9478074
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/panicking.rs:485:40
[INFO] [stdout]   30:     0x562ae2f2f7c6 - std::panicking::try::h5d34f63d0e41b64e
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/panicking.rs:449:19
[INFO] [stdout]   31:     0x562ae2f2f7c6 - std::panic::catch_unwind::hcfbb511e1aa7fc67
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/panic.rs:140:14
[INFO] [stdout]   32:     0x562ae2f2f7c6 - test::run_test_in_process::h9abda90f802eaf21
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/test/src/lib.rs:678:27
[INFO] [stdout]   33:     0x562ae2f2f7c6 - test::run_test::run_test_inner::{{closure}}::h0f058de91f6c6edf
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/test/src/lib.rs:572:39
[INFO] [stdout]   34:     0x562ae2ef86e5 - test::run_test::run_test_inner::{{closure}}::h5ca48a4c59c6c1fb
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/test/src/lib.rs:599:37
[INFO] [stdout]   35:     0x562ae2ef86e5 - std::sys_common::backtrace::__rust_begin_short_backtrace::h32bd51e1495d4a33
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/sys_common/backtrace.rs:134:18
[INFO] [stdout]   36:     0x562ae2efdc21 - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::hc086fae9b128b2db
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/thread/mod.rs:526:17
[INFO] [stdout]   37:     0x562ae2efdc21 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::hb66571888d270d43
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/core/src/panic/unwind_safe.rs:271:9
[INFO] [stdout]   38:     0x562ae2efdc21 - std::panicking::try::do_call::h4fa2ef4f6e51fecf
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/panicking.rs:485:40
[INFO] [stdout]   39:     0x562ae2efdc21 - std::panicking::try::h1e9e22b8584489b5
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/panicking.rs:449:19
[INFO] [stdout]   40:     0x562ae2efdc21 - std::panic::catch_unwind::h44698a3de0e0769e
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/panic.rs:140:14
[INFO] [stdout]   41:     0x562ae2efdc21 - std::thread::Builder::spawn_unchecked_::{{closure}}::h50153abde3fe239e
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/thread/mod.rs:525:30
[INFO] [stdout]   42:     0x562ae2efdc21 - core::ops::function::FnOnce::call_once{{vtable.shim}}::hbe5bbf6f38394364
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   43:     0x562ae2f5e665 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h0d83cb2920a49046
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/alloc/src/boxed.rs:1973:9
[INFO] [stdout]   44:     0x562ae2f5e665 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hbe0a008aa7d9ef59
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/alloc/src/boxed.rs:1973:9
[INFO] [stdout]   45:     0x562ae2f5e665 - std::sys::unix::thread::Thread::new::thread_start::h3a466996bdf6b1f9
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/sys/unix/thread.rs:108:17
[INFO] [stdout]   46:     0x7ffbe5b5eb43 - <unknown>
[INFO] [stdout]   47:     0x7ffbe5befbb4 - __clone
[INFO] [stdout]   48:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     ast::terms::face_systems::composition::test_normalise_composition_unit
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 12 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass `--bin cubical`
[INFO] running `Command { std: "docker" "inspect" "fd2c6b083af592399888f62a2319a09e44ef7a4079e05ce4051b3035b909a425", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fd2c6b083af592399888f62a2319a09e44ef7a4079e05ce4051b3035b909a425", kill_on_drop: false }`
[INFO] [stdout] fd2c6b083af592399888f62a2319a09e44ef7a4079e05ce4051b3035b909a425
