[INFO] cloning repository https://github.com/PrVrSs/rox
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/PrVrSs/rox" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPrVrSs%2Frox", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPrVrSs%2Frox'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] dd71313c5ddfa2ff9d34509f94c69ddaf2f34e57
[INFO] testing PrVrSs/rox against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPrVrSs%2Frox" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/PrVrSs/rox on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/PrVrSs/rox
[INFO] finished tweaking git repo https://github.com/PrVrSs/rox
[INFO] tweaked toml for git repo https://github.com/PrVrSs/rox written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/PrVrSs/rox already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ab909b425bcdfe8b1072aefb3354386ca0b7957e21b6d404b9a4ef22c981a042
[INFO] running `Command { std: "docker" "start" "-a" "ab909b425bcdfe8b1072aefb3354386ca0b7957e21b6d404b9a4ef22c981a042", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ab909b425bcdfe8b1072aefb3354386ca0b7957e21b6d404b9a4ef22c981a042", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ab909b425bcdfe8b1072aefb3354386ca0b7957e21b6d404b9a4ef22c981a042", kill_on_drop: false }`
[INFO] [stdout] ab909b425bcdfe8b1072aefb3354386ca0b7957e21b6d404b9a4ef22c981a042
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9a52b9f7434c68f4d7bfc52fd265301e470c91d12f50e3879b457ebca49c16d1
[INFO] running `Command { std: "docker" "start" "-a" "9a52b9f7434c68f4d7bfc52fd265301e470c91d12f50e3879b457ebca49c16d1", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.19
[INFO] [stderr]    Compiling syn v1.0.39
[INFO] [stderr]    Compiling libc v0.2.76
[INFO] [stderr]    Compiling unicode-segmentation v1.6.0
[INFO] [stderr]    Compiling termcolor v1.1.0
[INFO] [stderr]    Compiling os_str_bytes v2.3.2
[INFO] [stderr]    Compiling strsim v0.10.0
[INFO] [stderr]    Compiling proc-macro-error-attr v0.4.12
[INFO] [stderr]    Compiling hashbrown v0.8.2
[INFO] [stderr]    Compiling proc-macro-error v0.4.12
[INFO] [stderr]    Compiling indexmap v1.5.1
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling syn-mid v0.5.0
[INFO] [stderr]    Compiling clap_derive v3.0.0-beta.1
[INFO] [stderr]    Compiling clap v3.0.0-beta.1
[INFO] [stderr]    Compiling rox v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Literal`
[INFO] [stdout]  --> src/ast_printer.rs:3:27
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::token::{Token, Literal};
[INFO] [stdout]   |                           ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name`
[INFO] [stdout]   --> src/interpreter.rs:23:32
[INFO] [stdout]    |
[INFO] [stdout] 23 |     fn visit_assign(&mut self, name: &Token, value: &Expr) -> Result<Object> {
[INFO] [stdout]    |                                ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]   --> src/interpreter.rs:23:46
[INFO] [stdout]    |
[INFO] [stdout] 23 |     fn visit_assign(&mut self, name: &Token, value: &Expr) -> Result<Object> {
[INFO] [stdout]    |                                              ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name`
[INFO] [stdout]   --> src/interpreter.rs:27:33
[INFO] [stdout]    |
[INFO] [stdout] 27 |     fn visit_literal(&mut self, name: &Token) -> Result<Object> {
[INFO] [stdout]    |                                 ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name`
[INFO] [stdout]   --> src/ast_printer.rs:38:32
[INFO] [stdout]    |
[INFO] [stdout] 38 |     fn visit_assign(&mut self, name: &Token, value: &Expr) -> String {
[INFO] [stdout]    |                                ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]   --> src/ast_printer.rs:38:46
[INFO] [stdout]    |
[INFO] [stdout] 38 |     fn visit_assign(&mut self, name: &Token, value: &Expr) -> String {
[INFO] [stdout]    |                                              ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `evaluate`
[INFO] [stdout]   --> src/interpreter.rs:16:8
[INFO] [stdout]    |
[INFO] [stdout] 16 |     fn evaluate(&mut self, expr: &Expr) -> Result<Object> {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 33.86s
[INFO] running `Command { std: "docker" "inspect" "9a52b9f7434c68f4d7bfc52fd265301e470c91d12f50e3879b457ebca49c16d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9a52b9f7434c68f4d7bfc52fd265301e470c91d12f50e3879b457ebca49c16d1", kill_on_drop: false }`
[INFO] [stdout] 9a52b9f7434c68f4d7bfc52fd265301e470c91d12f50e3879b457ebca49c16d1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5b31129e5768e2c37aa88790de4fed7c80fefcf07c53f420950365c328ec336b
[INFO] running `Command { std: "docker" "start" "-a" "5b31129e5768e2c37aa88790de4fed7c80fefcf07c53f420950365c328ec336b", kill_on_drop: false }`
[INFO] [stderr]    Compiling rox v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Literal`
[INFO] [stdout]  --> src/ast_printer.rs:3:27
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::token::{Token, Literal};
[INFO] [stdout]   |                           ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name`
[INFO] [stdout]   --> src/interpreter.rs:23:32
[INFO] [stdout]    |
[INFO] [stdout] 23 |     fn visit_assign(&mut self, name: &Token, value: &Expr) -> Result<Object> {
[INFO] [stdout]    |                                ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]   --> src/interpreter.rs:23:46
[INFO] [stdout]    |
[INFO] [stdout] 23 |     fn visit_assign(&mut self, name: &Token, value: &Expr) -> Result<Object> {
[INFO] [stdout]    |                                              ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name`
[INFO] [stdout]   --> src/interpreter.rs:27:33
[INFO] [stdout]    |
[INFO] [stdout] 27 |     fn visit_literal(&mut self, name: &Token) -> Result<Object> {
[INFO] [stdout]    |                                 ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name`
[INFO] [stdout]   --> src/ast_printer.rs:38:32
[INFO] [stdout]    |
[INFO] [stdout] 38 |     fn visit_assign(&mut self, name: &Token, value: &Expr) -> String {
[INFO] [stdout]    |                                ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]   --> src/ast_printer.rs:38:46
[INFO] [stdout]    |
[INFO] [stdout] 38 |     fn visit_assign(&mut self, name: &Token, value: &Expr) -> String {
[INFO] [stdout]    |                                              ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `evaluate`
[INFO] [stdout]   --> src/interpreter.rs:16:8
[INFO] [stdout]    |
[INFO] [stdout] 16 |     fn evaluate(&mut self, expr: &Expr) -> Result<Object> {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Literal`
[INFO] [stdout]  --> src/ast_printer.rs:3:27
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::token::{Token, Literal};
[INFO] [stdout]   |                           ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name`
[INFO] [stdout]   --> src/interpreter.rs:23:32
[INFO] [stdout]    |
[INFO] [stdout] 23 |     fn visit_assign(&mut self, name: &Token, value: &Expr) -> Result<Object> {
[INFO] [stdout]    |                                ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]   --> src/interpreter.rs:23:46
[INFO] [stdout]    |
[INFO] [stdout] 23 |     fn visit_assign(&mut self, name: &Token, value: &Expr) -> Result<Object> {
[INFO] [stdout]    |                                              ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name`
[INFO] [stdout]   --> src/interpreter.rs:27:33
[INFO] [stdout]    |
[INFO] [stdout] 27 |     fn visit_literal(&mut self, name: &Token) -> Result<Object> {
[INFO] [stdout]    |                                 ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name`
[INFO] [stdout]   --> src/ast_printer.rs:38:32
[INFO] [stdout]    |
[INFO] [stdout] 38 |     fn visit_assign(&mut self, name: &Token, value: &Expr) -> String {
[INFO] [stdout]    |                                ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]   --> src/ast_printer.rs:38:46
[INFO] [stdout]    |
[INFO] [stdout] 38 |     fn visit_assign(&mut self, name: &Token, value: &Expr) -> String {
[INFO] [stdout]    |                                              ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `evaluate`
[INFO] [stdout]   --> src/interpreter.rs:16:8
[INFO] [stdout]    |
[INFO] [stdout] 16 |     fn evaluate(&mut self, expr: &Expr) -> Result<Object> {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.17s
[INFO] running `Command { std: "docker" "inspect" "5b31129e5768e2c37aa88790de4fed7c80fefcf07c53f420950365c328ec336b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5b31129e5768e2c37aa88790de4fed7c80fefcf07c53f420950365c328ec336b", kill_on_drop: false }`
[INFO] [stdout] 5b31129e5768e2c37aa88790de4fed7c80fefcf07c53f420950365c328ec336b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] d3ff8c75764f1e6b8bda42609a6bae33ceba03fe893c1728eb455d64af6ecf31
[INFO] running `Command { std: "docker" "start" "-a" "d3ff8c75764f1e6b8bda42609a6bae33ceba03fe893c1728eb455d64af6ecf31", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stdout] 
[INFO] [stderr] warning: unused import: `Literal`
[INFO] [stdout] running 0 tests
[INFO] [stderr]  --> src/ast_printer.rs:3:27
[INFO] [stdout] 
[INFO] [stderr]   |
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr] 3 | use crate::token::{Token, Literal};
[INFO] [stdout] 
[INFO] [stderr]   |                           ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `name`
[INFO] [stderr]   --> src/interpreter.rs:23:32
[INFO] [stderr]    |
[INFO] [stderr] 23 |     fn visit_assign(&mut self, name: &Token, value: &Expr) -> Result<Object> {
[INFO] [stderr]    |                                ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `value`
[INFO] [stderr]   --> src/interpreter.rs:23:46
[INFO] [stderr]    |
[INFO] [stderr] 23 |     fn visit_assign(&mut self, name: &Token, value: &Expr) -> Result<Object> {
[INFO] [stderr]    |                                              ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `name`
[INFO] [stderr]   --> src/interpreter.rs:27:33
[INFO] [stderr]    |
[INFO] [stderr] 27 |     fn visit_literal(&mut self, name: &Token) -> Result<Object> {
[INFO] [stderr]    |                                 ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `name`
[INFO] [stderr]   --> src/ast_printer.rs:38:32
[INFO] [stderr]    |
[INFO] [stderr] 38 |     fn visit_assign(&mut self, name: &Token, value: &Expr) -> String {
[INFO] [stderr]    |                                ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `value`
[INFO] [stderr]   --> src/ast_printer.rs:38:46
[INFO] [stderr]    |
[INFO] [stderr] 38 |     fn visit_assign(&mut self, name: &Token, value: &Expr) -> String {
[INFO] [stderr]    |                                              ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `evaluate`
[INFO] [stderr]   --> src/interpreter.rs:16:8
[INFO] [stderr]    |
[INFO] [stderr] 16 |     fn evaluate(&mut self, expr: &Expr) -> Result<Object> {
[INFO] [stderr]    |        ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `rox` (lib) generated 7 warnings
[INFO] [stderr] warning: `rox` (lib test) generated 7 warnings (7 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rox-9fd8c647ceb5fe8e)
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rox-69bdc807ca96aed9)
[INFO] [stdout] 
[INFO] [stderr]      Running tests/scanner.rs (/opt/rustwide/target/debug/deps/scanner-c05014f778113dfa)
[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] [stderr]    Doc-tests rox
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test test_simple_token ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 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" "d3ff8c75764f1e6b8bda42609a6bae33ceba03fe893c1728eb455d64af6ecf31", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d3ff8c75764f1e6b8bda42609a6bae33ceba03fe893c1728eb455d64af6ecf31", kill_on_drop: false }`
[INFO] [stdout] d3ff8c75764f1e6b8bda42609a6bae33ceba03fe893c1728eb455d64af6ecf31