[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 beta-2020-06-03 for beta-1.45-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fiasoon%2Fhet" "/workspace/builds/worker-8/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/iasoon/het on toolchain beta-2020-06-03
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/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-8/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" "+beta-2020-06-03" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-06-03" "build" "--frozen"`
[INFO] [stdout] 66ce955e418bb5b7b89e8c2f9294953a9a9f624da97a70514ea8367ff74963e6
[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" "66ce955e418bb5b7b89e8c2f9294953a9a9f624da97a70514ea8367ff74963e6"`
[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: associated function is never used: `pos`
[INFO] [stderr]   --> src/lexer.rs:54:8
[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: associated function is never used: `read_while`
[INFO] [stderr]   --> src/lexer.rs:72:8
[INFO] [stderr]    |
[INFO] [stderr] 72 |     fn read_while<P>(&mut self, mut pred: P) -> String
[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: associated function is never used: `resolve`
[INFO] [stderr]   --> src/evaluator.rs:37:8
[INFO] [stderr]    |
[INFO] [stderr] 37 |     fn resolve<'a>(&'a self, name: &str) -> Option<&'a Value> {
[INFO] [stderr]    |        ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `default`
[INFO] [stderr]   --> src/evaluator.rs:41:8
[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 0.87s
[INFO] running `"docker" "inspect" "66ce955e418bb5b7b89e8c2f9294953a9a9f624da97a70514ea8367ff74963e6"`
[INFO] running `"docker" "rm" "-f" "66ce955e418bb5b7b89e8c2f9294953a9a9f624da97a70514ea8367ff74963e6"`
[INFO] [stdout] 66ce955e418bb5b7b89e8c2f9294953a9a9f624da97a70514ea8367ff74963e6
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-06-03" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 8da7f4a42e8d4f7b67611e39b7e7d888aa99705a132c3130cd212f348572d768
[INFO] running `"docker" "start" "-a" "8da7f4a42e8d4f7b67611e39b7e7d888aa99705a132c3130cd212f348572d768"`
[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: associated function is never used: `pos`
[INFO] [stderr]   --> src/lexer.rs:54:8
[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: associated function is never used: `read_while`
[INFO] [stderr]   --> src/lexer.rs:72:8
[INFO] [stderr]    |
[INFO] [stderr] 72 |     fn read_while<P>(&mut self, mut pred: P) -> String
[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: associated function is never used: `resolve`
[INFO] [stderr]   --> src/evaluator.rs:37:8
[INFO] [stderr]    |
[INFO] [stderr] 37 |     fn resolve<'a>(&'a self, name: &str) -> Option<&'a Value> {
[INFO] [stderr]    |        ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `default`
[INFO] [stderr]   --> src/evaluator.rs:41:8
[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 0.81s
[INFO] running `"docker" "inspect" "8da7f4a42e8d4f7b67611e39b7e7d888aa99705a132c3130cd212f348572d768"`
[INFO] running `"docker" "rm" "-f" "8da7f4a42e8d4f7b67611e39b7e7d888aa99705a132c3130cd212f348572d768"`
[INFO] [stdout] 8da7f4a42e8d4f7b67611e39b7e7d888aa99705a132c3130cd212f348572d768
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-06-03" "test" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] f4b16759e9f9b40d8911f5ba28ebb90234913080aa901eda1a0ddbb0d9988c6b
[INFO] running `"docker" "start" "-a" "f4b16759e9f9b40d8911f5ba28ebb90234913080aa901eda1a0ddbb0d9988c6b"`
[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: associated function is never used: `pos`
[INFO] [stderr]   --> src/lexer.rs:54:8
[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: associated function is never used: `read_while`
[INFO] [stderr]   --> src/lexer.rs:72:8
[INFO] [stderr]    |
[INFO] [stderr] 72 |     fn read_while<P>(&mut self, mut pred: P) -> String
[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: associated function is never used: `resolve`
[INFO] [stderr]   --> src/evaluator.rs:37:8
[INFO] [stderr]    |
[INFO] [stderr] 37 |     fn resolve<'a>(&'a self, name: &str) -> Option<&'a Value> {
[INFO] [stderr]    |        ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `default`
[INFO] [stderr]   --> src/evaluator.rs:41:8
[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-1fb8fed3dddf9f46
[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" "f4b16759e9f9b40d8911f5ba28ebb90234913080aa901eda1a0ddbb0d9988c6b"`
[INFO] running `"docker" "rm" "-f" "f4b16759e9f9b40d8911f5ba28ebb90234913080aa901eda1a0ddbb0d9988c6b"`
[INFO] [stdout] f4b16759e9f9b40d8911f5ba28ebb90234913080aa901eda1a0ddbb0d9988c6b