[INFO] updating cached repository https://github.com/iasoon/het
[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] [stderr] From https://github.com/iasoon/het
[INFO] [stderr]    aedbf3e..7d2ff0a  master     -> master
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 7d2ff0ac751b08f089605216e26ba5acfac291ae
[INFO] testing iasoon/het against 1.44.0 for beta-1.45-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fiasoon%2Fhet" "/workspace/builds/worker-14/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/iasoon/het on toolchain 1.44.0
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/iasoon/het
[INFO] finished tweaking git repo https://github.com/iasoon/het
[INFO] tweaked toml for git repo https://github.com/iasoon/het written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/iasoon/het already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "+1.44.0" "build" "--frozen"`
[INFO] [stdout] dca6acc55f64908fcda37bda01f5e58a7930b7457d86ed6a029b696e80bba249
[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" "dca6acc55f64908fcda37bda01f5e58a7930b7457d86ed6a029b696e80bba249"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling de-het-taal v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `std::collections::HashMap`
[INFO] [stderr]  --> src/types.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::collections::HashMap;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `arg_type`
[INFO] [stderr]    --> src/types.rs:129:21
[INFO] [stderr]     |
[INFO] [stderr] 129 |                 let arg_type = match &arg.type_name {
[INFO] [stderr]     |                     ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_arg_type`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/lexer.rs:72:33
[INFO] [stderr]    |
[INFO] [stderr] 72 |     fn read_while<P>(&mut self, mut pred: P) -> String
[INFO] [stderr]    |                                 ----^^^^
[INFO] [stderr]    |                                 |
[INFO] [stderr]    |                                 help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `pos`
[INFO] [stderr]   --> src/lexer.rs:54:5
[INFO] [stderr]    |
[INFO] [stderr] 54 |     fn pos(&self) -> Option<char> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `read_while`
[INFO] [stderr]   --> src/lexer.rs:72:5
[INFO] [stderr]    |
[INFO] [stderr] 72 | /     fn read_while<P>(&mut self, mut pred: P) -> String
[INFO] [stderr] 73 | |         where P: FnMut(&char) -> bool
[INFO] [stderr] 74 | |     {
[INFO] [stderr] 75 | |         let mut buf = String::new();
[INFO] [stderr] 76 | |         self.read_while_mut(&mut buf, pred);
[INFO] [stderr] 77 | |         return buf;
[INFO] [stderr] 78 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `PrimitiveFn`
[INFO] [stderr]  --> src/evaluator.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     PrimitiveFn(&'static dyn Fn(&[Value]) -> Result<Value, String>),
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Number`
[INFO] [stderr]  --> src/evaluator.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 |     Number(f64),
[INFO] [stderr]   |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Lambda`
[INFO] [stderr]   --> src/evaluator.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     Lambda { args: Vec<String>, body: Closure },
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `resolve`
[INFO] [stderr]   --> src/evaluator.rs:37:5
[INFO] [stderr]    |
[INFO] [stderr] 37 |     fn resolve<'a>(&'a self, name: &str) -> Option<&'a Value> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `default`
[INFO] [stderr]   --> src/evaluator.rs:41:5
[INFO] [stderr]    |
[INFO] [stderr] 41 |     fn default() -> Env {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `eval`
[INFO] [stderr]   --> src/evaluator.rs:48:8
[INFO] [stderr]    |
[INFO] [stderr] 48 | pub fn eval(expr: &Expr) -> Result<Value, String> {
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `eval_`
[INFO] [stderr]   --> src/evaluator.rs:53:4
[INFO] [stderr]    |
[INFO] [stderr] 53 | fn eval_(env: &Env, expr: &Expr) -> Result<Value, String> {
[INFO] [stderr]    |    ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `apply`
[INFO] [stderr]   --> src/evaluator.rs:80:4
[INFO] [stderr]    |
[INFO] [stderr] 80 | fn apply(abs: &Value, args: &[Value]) -> Result<Value, String> {
[INFO] [stderr]    |    ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `fun_add`
[INFO] [stderr]   --> src/evaluator.rs:96:4
[INFO] [stderr]    |
[INFO] [stderr] 96 | fn fun_add(values: &[Value]) -> Result<Value, String> {
[INFO] [stderr]    |    ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Eq`
[INFO] [stderr]   --> src/types.rs:35:5
[INFO] [stderr]    |
[INFO] [stderr] 35 |     Eq { t1: Type, t2: Type }
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 15 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.05s
[INFO] running `"docker" "inspect" "dca6acc55f64908fcda37bda01f5e58a7930b7457d86ed6a029b696e80bba249"`
[INFO] running `"docker" "rm" "-f" "dca6acc55f64908fcda37bda01f5e58a7930b7457d86ed6a029b696e80bba249"`
[INFO] [stdout] dca6acc55f64908fcda37bda01f5e58a7930b7457d86ed6a029b696e80bba249
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "+1.44.0" "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] fcae02b9851366f3a661c4516f9762fd2780854c5d72bb5bbc585b1317c7c910
[INFO] running `"docker" "start" "-a" "fcae02b9851366f3a661c4516f9762fd2780854c5d72bb5bbc585b1317c7c910"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling de-het-taal v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `std::collections::HashMap`
[INFO] [stderr]  --> src/types.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::collections::HashMap;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `arg_type`
[INFO] [stderr]    --> src/types.rs:129:21
[INFO] [stderr]     |
[INFO] [stderr] 129 |                 let arg_type = match &arg.type_name {
[INFO] [stderr]     |                     ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_arg_type`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/lexer.rs:72:33
[INFO] [stderr]    |
[INFO] [stderr] 72 |     fn read_while<P>(&mut self, mut pred: P) -> String
[INFO] [stderr]    |                                 ----^^^^
[INFO] [stderr]    |                                 |
[INFO] [stderr]    |                                 help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `pos`
[INFO] [stderr]   --> src/lexer.rs:54:5
[INFO] [stderr]    |
[INFO] [stderr] 54 |     fn pos(&self) -> Option<char> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `read_while`
[INFO] [stderr]   --> src/lexer.rs:72:5
[INFO] [stderr]    |
[INFO] [stderr] 72 | /     fn read_while<P>(&mut self, mut pred: P) -> String
[INFO] [stderr] 73 | |         where P: FnMut(&char) -> bool
[INFO] [stderr] 74 | |     {
[INFO] [stderr] 75 | |         let mut buf = String::new();
[INFO] [stderr] 76 | |         self.read_while_mut(&mut buf, pred);
[INFO] [stderr] 77 | |         return buf;
[INFO] [stderr] 78 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `PrimitiveFn`
[INFO] [stderr]  --> src/evaluator.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     PrimitiveFn(&'static dyn Fn(&[Value]) -> Result<Value, String>),
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Number`
[INFO] [stderr]  --> src/evaluator.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 |     Number(f64),
[INFO] [stderr]   |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Lambda`
[INFO] [stderr]   --> src/evaluator.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     Lambda { args: Vec<String>, body: Closure },
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `resolve`
[INFO] [stderr]   --> src/evaluator.rs:37:5
[INFO] [stderr]    |
[INFO] [stderr] 37 |     fn resolve<'a>(&'a self, name: &str) -> Option<&'a Value> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `default`
[INFO] [stderr]   --> src/evaluator.rs:41:5
[INFO] [stderr]    |
[INFO] [stderr] 41 |     fn default() -> Env {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `eval`
[INFO] [stderr]   --> src/evaluator.rs:48:8
[INFO] [stderr]    |
[INFO] [stderr] 48 | pub fn eval(expr: &Expr) -> Result<Value, String> {
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `eval_`
[INFO] [stderr]   --> src/evaluator.rs:53:4
[INFO] [stderr]    |
[INFO] [stderr] 53 | fn eval_(env: &Env, expr: &Expr) -> Result<Value, String> {
[INFO] [stderr]    |    ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `apply`
[INFO] [stderr]   --> src/evaluator.rs:80:4
[INFO] [stderr]    |
[INFO] [stderr] 80 | fn apply(abs: &Value, args: &[Value]) -> Result<Value, String> {
[INFO] [stderr]    |    ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `fun_add`
[INFO] [stderr]   --> src/evaluator.rs:96:4
[INFO] [stderr]    |
[INFO] [stderr] 96 | fn fun_add(values: &[Value]) -> Result<Value, String> {
[INFO] [stderr]    |    ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Eq`
[INFO] [stderr]   --> src/types.rs:35:5
[INFO] [stderr]    |
[INFO] [stderr] 35 |     Eq { t1: Type, t2: Type }
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 15 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.74s
[INFO] running `"docker" "inspect" "fcae02b9851366f3a661c4516f9762fd2780854c5d72bb5bbc585b1317c7c910"`
[INFO] running `"docker" "rm" "-f" "fcae02b9851366f3a661c4516f9762fd2780854c5d72bb5bbc585b1317c7c910"`
[INFO] [stdout] fcae02b9851366f3a661c4516f9762fd2780854c5d72bb5bbc585b1317c7c910
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "+1.44.0" "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] c7d63e740fcc3e4b22ec485bd28228a848df9101e55f0403c3772769a45894f8
[INFO] running `"docker" "start" "-a" "c7d63e740fcc3e4b22ec485bd28228a848df9101e55f0403c3772769a45894f8"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr] warning: unused import: `std::collections::HashMap`
[INFO] [stderr]  --> src/types.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::collections::HashMap;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `arg_type`
[INFO] [stderr]    --> src/types.rs:129:21
[INFO] [stderr]     |
[INFO] [stderr] 129 |                 let arg_type = match &arg.type_name {
[INFO] [stderr]     |                     ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_arg_type`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/lexer.rs:72:33
[INFO] [stderr]    |
[INFO] [stderr] 72 |     fn read_while<P>(&mut self, mut pred: P) -> String
[INFO] [stderr]    |                                 ----^^^^
[INFO] [stderr]    |                                 |
[INFO] [stderr]    |                                 help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `pos`
[INFO] [stderr]   --> src/lexer.rs:54:5
[INFO] [stderr]    |
[INFO] [stderr] 54 |     fn pos(&self) -> Option<char> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `read_while`
[INFO] [stderr]   --> src/lexer.rs:72:5
[INFO] [stderr]    |
[INFO] [stderr] 72 | /     fn read_while<P>(&mut self, mut pred: P) -> String
[INFO] [stderr] 73 | |         where P: FnMut(&char) -> bool
[INFO] [stderr] 74 | |     {
[INFO] [stderr] 75 | |         let mut buf = String::new();
[INFO] [stderr] 76 | |         self.read_while_mut(&mut buf, pred);
[INFO] [stderr] 77 | |         return buf;
[INFO] [stderr] 78 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `PrimitiveFn`
[INFO] [stderr]  --> src/evaluator.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     PrimitiveFn(&'static dyn Fn(&[Value]) -> Result<Value, String>),
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Number`
[INFO] [stderr]  --> src/evaluator.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 |     Number(f64),
[INFO] [stderr]   |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Lambda`
[INFO] [stderr]   --> src/evaluator.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     Lambda { args: Vec<String>, body: Closure },
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `resolve`
[INFO] [stderr]   --> src/evaluator.rs:37:5
[INFO] [stderr]    |
[INFO] [stderr] 37 |     fn resolve<'a>(&'a self, name: &str) -> Option<&'a Value> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `default`
[INFO] [stderr]   --> src/evaluator.rs:41:5
[INFO] [stderr]    |
[INFO] [stderr] 41 |     fn default() -> Env {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `eval`
[INFO] [stderr]   --> src/evaluator.rs:48:8
[INFO] [stderr]    |
[INFO] [stderr] 48 | pub fn eval(expr: &Expr) -> Result<Value, String> {
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `eval_`
[INFO] [stderr]   --> src/evaluator.rs:53:4
[INFO] [stderr]    |
[INFO] [stderr] 53 | fn eval_(env: &Env, expr: &Expr) -> Result<Value, String> {
[INFO] [stderr]    |    ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `apply`
[INFO] [stderr]   --> src/evaluator.rs:80:4
[INFO] [stderr]    |
[INFO] [stderr] 80 | fn apply(abs: &Value, args: &[Value]) -> Result<Value, String> {
[INFO] [stderr]    |    ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `fun_add`
[INFO] [stderr]   --> src/evaluator.rs:96:4
[INFO] [stderr]    |
[INFO] [stderr] 96 | fn fun_add(values: &[Value]) -> Result<Value, String> {
[INFO] [stderr]    |    ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Eq`
[INFO] [stderr]   --> src/types.rs:35:5
[INFO] [stderr]    |
[INFO] [stderr] 35 |     Eq { t1: Type, t2: Type }
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 15 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/de_het_taal-c08079603cfde804
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "c7d63e740fcc3e4b22ec485bd28228a848df9101e55f0403c3772769a45894f8"`
[INFO] running `"docker" "rm" "-f" "c7d63e740fcc3e4b22ec485bd28228a848df9101e55f0403c3772769a45894f8"`
[INFO] [stdout] c7d63e740fcc3e4b22ec485bd28228a848df9101e55f0403c3772769a45894f8