[INFO] cloning repository https://github.com/altaurog/rust-traits
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/altaurog/rust-traits" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faltaurog%2Frust-traits", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faltaurog%2Frust-traits'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9e0f8e9c8c8db9614c0b4b71a2a2db15c297d845
[INFO] testing altaurog/rust-traits against try#722e1797249a965b6335aebd65d777f917e498f1 for pr-91031
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faltaurog%2Frust-traits" "/workspace/builds/worker-12/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/altaurog/rust-traits on toolchain 722e1797249a965b6335aebd65d777f917e498f1
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/altaurog/rust-traits
[INFO] finished tweaking git repo https://github.com/altaurog/rust-traits
[INFO] tweaked toml for git repo https://github.com/altaurog/rust-traits written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/altaurog/rust-traits already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded peg-runtime v0.7.0
[INFO] [stderr]   Downloaded peg-macros v0.7.0
[INFO] [stderr]   Downloaded peg v0.7.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0eef3fc894740d56e559d20c5a0e53baae8b5531537a4919a07be23694ac4a54
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "0eef3fc894740d56e559d20c5a0e53baae8b5531537a4919a07be23694ac4a54", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0eef3fc894740d56e559d20c5a0e53baae8b5531537a4919a07be23694ac4a54", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0eef3fc894740d56e559d20c5a0e53baae8b5531537a4919a07be23694ac4a54", kill_on_drop: false }`
[INFO] [stdout] 0eef3fc894740d56e559d20c5a0e53baae8b5531537a4919a07be23694ac4a54
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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=forbid" "-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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] bd5048978f5916f79f88295363dcf11da0715c414b870653d8b176adf92fb4fc
[INFO] running `Command { std: "docker" "start" "-a" "bd5048978f5916f79f88295363dcf11da0715c414b870653d8b176adf92fb4fc", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.26
[INFO] [stderr]    Compiling peg-runtime v0.7.0
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling peg-macros v0.7.0
[INFO] [stderr]    Compiling peg v0.7.0
[INFO] [stderr]    Compiling typeclasses v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::rc::Rc`
[INFO] [stdout]  --> src/parse.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::rc::Rc;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `eval`
[INFO] [stdout]   --> src/eval.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub fn eval(expr: &ExprT) -> i32 {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `eval_str`
[INFO] [stdout]   --> src/parse.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub fn eval_str(input: String) -> Option<i32> {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `parse_exp`
[INFO] [stdout]   --> src/parse.rs:18:8
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub fn parse_exp<T: Expr>(input: String) -> Option<T> {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `exprt_to_expr`
[INFO] [stdout]   --> src/parse.rs:25:8
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub fn exprt_to_expr<T: Expr>(exprt: &ExprT) -> T {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `IVal`
[INFO] [stdout]  --> src/stackvm.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     IVal(i32),
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `BVal`
[INFO] [stdout]  --> src/stackvm.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     BVal(bool),
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Void`
[INFO] [stdout]  --> src/stackvm.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     Void,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias is never used: `Stack`
[INFO] [stdout]   --> src/stackvm.rs:20:1
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub type Stack = VecDeque<StackVal>;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `stackvm`
[INFO] [stdout]   --> src/stackvm.rs:23:8
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub fn stackvm<'a>(program: Program) -> Result<StackVal, String> {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `err_type`
[INFO] [stdout]   --> src/stackvm.rs:27:4
[INFO] [stdout]    |
[INFO] [stdout] 27 | fn err_type<'a, T>(op: &str) -> Result<T, String> {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `err_underflow`
[INFO] [stdout]   --> src/stackvm.rs:31:4
[INFO] [stdout]    |
[INFO] [stdout] 31 | fn err_underflow<'a, T>(op: &str) -> Result<T, String> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `execute`
[INFO] [stdout]   --> src/stackvm.rs:35:4
[INFO] [stdout]    |
[INFO] [stdout] 35 | fn execute<'a>(stack: Stack, program: Program) -> Result<StackVal, String> {
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `compile`
[INFO] [stdout]   --> src/program.rs:35:8
[INFO] [stdout]    |
[INFO] [stdout] 35 | pub fn compile(expr: String) -> Option<Program> {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `with_vars`
[INFO] [stdout]    --> src/hasvars.rs:107:4
[INFO] [stdout]     |
[INFO] [stdout] 107 | fn with_vars(vals: Vec<(&str, i32)>, expr: SymbolMapExpr) -> Option<i32>
[INFO] [stdout]     |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 15 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.31s
[INFO] running `Command { std: "docker" "inspect" "bd5048978f5916f79f88295363dcf11da0715c414b870653d8b176adf92fb4fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bd5048978f5916f79f88295363dcf11da0715c414b870653d8b176adf92fb4fc", kill_on_drop: false }`
[INFO] [stdout] bd5048978f5916f79f88295363dcf11da0715c414b870653d8b176adf92fb4fc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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=forbid" "-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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 63e41cf477d3bcb1cfe0fea109f2799299762445058e0a8fda11fc03d3f9aa5e
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "63e41cf477d3bcb1cfe0fea109f2799299762445058e0a8fda11fc03d3f9aa5e", kill_on_drop: false }`
[INFO] [stderr]    Compiling typeclasses v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::rc::Rc`
[INFO] [stdout]  --> src/parse.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::rc::Rc;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `eval`
[INFO] [stdout]   --> src/eval.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub fn eval(expr: &ExprT) -> i32 {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `eval_str`
[INFO] [stdout]   --> src/parse.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub fn eval_str(input: String) -> Option<i32> {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `parse_exp`
[INFO] [stdout]   --> src/parse.rs:18:8
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub fn parse_exp<T: Expr>(input: String) -> Option<T> {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `exprt_to_expr`
[INFO] [stdout]   --> src/parse.rs:25:8
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub fn exprt_to_expr<T: Expr>(exprt: &ExprT) -> T {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `IVal`
[INFO] [stdout]  --> src/stackvm.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     IVal(i32),
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `BVal`
[INFO] [stdout]  --> src/stackvm.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     BVal(bool),
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Void`
[INFO] [stdout]  --> src/stackvm.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     Void,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias is never used: `Stack`
[INFO] [stdout]   --> src/stackvm.rs:20:1
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub type Stack = VecDeque<StackVal>;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `stackvm`
[INFO] [stdout]   --> src/stackvm.rs:23:8
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub fn stackvm<'a>(program: Program) -> Result<StackVal, String> {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `err_type`
[INFO] [stdout]   --> src/stackvm.rs:27:4
[INFO] [stdout]    |
[INFO] [stdout] 27 | fn err_type<'a, T>(op: &str) -> Result<T, String> {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `err_underflow`
[INFO] [stdout]   --> src/stackvm.rs:31:4
[INFO] [stdout]    |
[INFO] [stdout] 31 | fn err_underflow<'a, T>(op: &str) -> Result<T, String> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `execute`
[INFO] [stdout]   --> src/stackvm.rs:35:4
[INFO] [stdout]    |
[INFO] [stdout] 35 | fn execute<'a>(stack: Stack, program: Program) -> Result<StackVal, String> {
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `compile`
[INFO] [stdout]   --> src/program.rs:35:8
[INFO] [stdout]    |
[INFO] [stdout] 35 | pub fn compile(expr: String) -> Option<Program> {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `with_vars`
[INFO] [stdout]    --> src/hasvars.rs:107:4
[INFO] [stdout]     |
[INFO] [stdout] 107 | fn with_vars(vals: Vec<(&str, i32)>, expr: SymbolMapExpr) -> Option<i32>
[INFO] [stdout]     |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 15 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::rc::Rc`
[INFO] [stdout]  --> src/parse.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::rc::Rc;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.32s
[INFO] running `Command { std: "docker" "inspect" "63e41cf477d3bcb1cfe0fea109f2799299762445058e0a8fda11fc03d3f9aa5e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "63e41cf477d3bcb1cfe0fea109f2799299762445058e0a8fda11fc03d3f9aa5e", kill_on_drop: false }`
[INFO] [stdout] 63e41cf477d3bcb1cfe0fea109f2799299762445058e0a8fda11fc03d3f9aa5e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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=forbid" "-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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 82ec27ff5494ff03491e94695c9f99d6243ee578a6541c9ed9f1117cbb055c8b
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "82ec27ff5494ff03491e94695c9f99d6243ee578a6541c9ed9f1117cbb055c8b", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `std::rc::Rc`
[INFO] [stderr]  --> src/parse.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::rc::Rc;
[INFO] [stderr]   |     ^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `eval`
[INFO] [stderr]   --> src/eval.rs:12:8
[INFO] [stderr]    |
[INFO] [stderr] 12 | pub fn eval(expr: &ExprT) -> i32 {
[INFO] [stderr]    |        ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `eval_str`
[INFO] [stderr]   --> src/parse.rs:14:8
[INFO] [stderr]    |
[INFO] [stderr] 14 | pub fn eval_str(input: String) -> Option<i32> {
[INFO] [stderr]    |        ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `parse_exp`
[INFO] [stderr]   --> src/parse.rs:18:8
[INFO] [stderr]    |
[INFO] [stderr] 18 | pub fn parse_exp<T: Expr>(input: String) -> Option<T> {
[INFO] [stderr]    |        ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `exprt_to_expr`
[INFO] [stderr]   --> src/parse.rs:25:8
[INFO] [stderr]    |
[INFO] [stderr] 25 | pub fn exprt_to_expr<T: Expr>(exprt: &ExprT) -> T {
[INFO] [stderr]    |        ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `IVal`
[INFO] [stderr]  --> src/stackvm.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 |     IVal(i32),
[INFO] [stderr]   |     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `BVal`
[INFO] [stderr]  --> src/stackvm.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 |     BVal(bool),
[INFO] [stderr]   |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Void`
[INFO] [stderr]  --> src/stackvm.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 |     Void,
[INFO] [stderr]   |     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `Stack`
[INFO] [stderr]   --> src/stackvm.rs:20:1
[INFO] [stderr]    |
[INFO] [stderr] 20 | pub type Stack = VecDeque<StackVal>;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `stackvm`
[INFO] [stderr]   --> src/stackvm.rs:23:8
[INFO] [stderr]    |
[INFO] [stderr] 23 | pub fn stackvm<'a>(program: Program) -> Result<StackVal, String> {
[INFO] [stderr]    |        ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `err_type`
[INFO] [stderr]   --> src/stackvm.rs:27:4
[INFO] [stderr]    |
[INFO] [stderr] 27 | fn err_type<'a, T>(op: &str) -> Result<T, String> {
[INFO] [stderr]    |    ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `err_underflow`
[INFO] [stderr]   --> src/stackvm.rs:31:4
[INFO] [stderr]    |
[INFO] [stderr] 31 | fn err_underflow<'a, T>(op: &str) -> Result<T, String> {
[INFO] [stderr]    |    ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `execute`
[INFO] [stderr]   --> src/stackvm.rs:35:4
[INFO] [stderr]    |
[INFO] [stderr] 35 | fn execute<'a>(stack: Stack, program: Program) -> Result<StackVal, String> {
[INFO] [stderr]    |    ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `compile`
[INFO] [stderr]   --> src/program.rs:35:8
[INFO] [stderr]    |
[INFO] [stderr] 35 | pub fn compile(expr: String) -> Option<Program> {
[INFO] [stderr]    |        ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `with_vars`
[INFO] [stderr]    --> src/hasvars.rs:107:4
[INFO] [stderr]     |
[INFO] [stderr] 107 | fn with_vars(vals: Vec<(&str, i32)>, expr: SymbolMapExpr) -> Option<i32>
[INFO] [stderr]     |    ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `typeclasses` (lib) generated 15 warnings
[INFO] [stderr] warning: `typeclasses` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/typeclasses-aea6d52cb1831039)
[INFO] [stdout] running 35 tests
[INFO] [stdout] test eval::ex1_tests::test_add ... ok
[INFO] [stdout] test eval::ex1_tests::test_lit ... ok
[INFO] [stdout] test exprt::ex3_tests_exprt::test_exprt_mul ... ok
[INFO] [stdout] test hasvars::ex6_test::test_add_var_var ... ok
[INFO] [stdout] test hasvars::ex6_test::test_all ... ok
[INFO] [stdout] test hasvars::ex6_test::test_mul_lit_lit ... ok
[INFO] [stdout] test boolean::ex4_tests_bool::test_bool_add ... ok
[INFO] [stdout] test integer::ex4_tests_i32::test_i32_lit ... ok
[INFO] [stdout] test integer::ex4_tests_i32::test_i32_mul ... ok
[INFO] [stdout] test minmax::ex4_tests_minmax::test_minmax_add ... ok
[INFO] [stdout] test boolean::ex4_tests_bool::test_bool_lit ... ok
[INFO] [stdout] test boolean::ex4_tests_bool::test_bool_mul ... ok
[INFO] [stdout] test exprt::ex3_tests_exprt::test_exprt_add ... ok
[INFO] [stdout] test eval::ex1_tests::test_mul ... ok
[INFO] [stdout] test exprt::ex3_tests_exprt::test_exprt_lit ... ok
[INFO] [stdout] test hasvars::ex6_test::test_varexprt ... ok
[INFO] [stdout] test minmax::ex4_tests_minmax::test_minmax_lit ... ok
[INFO] [stdout] test hasvars::ex6_test::test_missing_var ... ok
[INFO] [stdout] test integer::ex4_tests_i32::test_i32_add ... ok
[INFO] [stdout] test hasvars::ex6_test::test_mul_lit_var ... ok
[INFO] [stdout] test mod7::ex4_tests_mod7::test_mod7_mul ... ok
[INFO] [stdout] test parse::ex2_test::test_eval_str ... ok
[INFO] [stdout] test stackvm::stackvm_tests::test_stackvm_simple_and ... ok
[INFO] [stdout] test program::ex5_test::test_simple_mul ... ok
[INFO] [stdout] test stackvm::stackvm_tests::test_stackvm_simple_mul ... ok
[INFO] [stdout] test mod7::ex4_tests_mod7::test_mod7_add ... ok
[INFO] [stdout] test parse::ex2_test::test_parse_exp ... ok
[INFO] [stdout] test minmax::ex4_tests_minmax::test_minmax_mul ... ok
[INFO] [stdout] test program::ex5_test::test_single_val ... ok
[INFO] [stdout] test stackvm::stackvm_tests::test_stackvm_add_err_type ... ok
[INFO] [stdout] test mod7::ex4_tests_mod7::test_mod7_lit ... ok
[INFO] [stdout] test stackvm::stackvm_tests::test_stackvm_simple_add ... ok
[INFO] [stdout] test parse::ex2_test::test_parse_parentheses ... ok
[INFO] [stdout] test program::ex5_test::test_simple_add ... ok
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/typeclasses-982c0ebe9aaea72a)
[INFO] [stdout] test stackvm::stackvm_tests::test_stackvm_add_underflow ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 35 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests typeclasses
[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; finished in 0.00s
[INFO] [stdout] 
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "82ec27ff5494ff03491e94695c9f99d6243ee578a6541c9ed9f1117cbb055c8b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "82ec27ff5494ff03491e94695c9f99d6243ee578a6541c9ed9f1117cbb055c8b", kill_on_drop: false }`
[INFO] [stdout] 82ec27ff5494ff03491e94695c9f99d6243ee578a6541c9ed9f1117cbb055c8b