[INFO] updating cached repository https://github.com/Dendrimer/rlox
[INFO] running `Command { std: "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", kill_on_drop: false }`
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 26a7d903a2d1ae239b3607bf1bcb42a040f6f2a4
[INFO] testing Dendrimer/rlox against beta-2020-07-24 for beta-1.46-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDendrimer%2Frlox" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Dendrimer/rlox on toolchain beta-2020-07-24
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Dendrimer/rlox
[INFO] finished tweaking git repo https://github.com/Dendrimer/rlox
[INFO] tweaked toml for git repo https://github.com/Dendrimer/rlox written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/Dendrimer/rlox already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4c57aeab58d9c41214fcd8ededb110a00c7d994e8a80dedf236f983966c3d433
[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" "4c57aeab58d9c41214fcd8ededb110a00c7d994e8a80dedf236f983966c3d433", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4c57aeab58d9c41214fcd8ededb110a00c7d994e8a80dedf236f983966c3d433", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4c57aeab58d9c41214fcd8ededb110a00c7d994e8a80dedf236f983966c3d433", kill_on_drop: false }`
[INFO] [stdout] 4c57aeab58d9c41214fcd8ededb110a00c7d994e8a80dedf236f983966c3d433
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 13a3382e30497284d247e49b9648dae9b667a495734d65752c30654a9ad9f392
[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" "13a3382e30497284d247e49b9648dae9b667a495734d65752c30654a9ad9f392", kill_on_drop: false }`
[INFO] [stderr]    Compiling rlox v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> src/scanner.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `error`
[INFO] [stdout]  --> src/errors.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn error(line: i32, message: &str) -> bool {
[INFO] [stdout]   |        ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `report`
[INFO] [stdout]  --> src/errors.rs:6:4
[INFO] [stdout]   |
[INFO] [stdout] 6 | fn report(line: i32, error: &str, message: &str) {
[INFO] [stdout]   |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Scanner`
[INFO] [stdout]  --> src/scanner.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct Scanner {
[INFO] [stdout]   |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `LeftParen`
[INFO] [stdout]  --> src/tokens.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     LeftParen,
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `RightParen`
[INFO] [stdout]  --> src/tokens.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     RightParen,
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `LeftBrace`
[INFO] [stdout]  --> src/tokens.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     LeftBrace,
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `RightBrace`
[INFO] [stdout]  --> src/tokens.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     RightBrace,
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Comma`
[INFO] [stdout]   --> src/tokens.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     Comma,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Dot`
[INFO] [stdout]   --> src/tokens.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     Dot,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Minus`
[INFO] [stdout]   --> src/tokens.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     Minus,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Plus`
[INFO] [stdout]   --> src/tokens.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     Plus,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Semicolon`
[INFO] [stdout]   --> src/tokens.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 |     Semicolon,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Slash`
[INFO] [stdout]   --> src/tokens.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 |     Slash,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Star`
[INFO] [stdout]   --> src/tokens.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 |     Star,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Bang`
[INFO] [stdout]   --> src/tokens.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 |     Bang,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `BangEqual`
[INFO] [stdout]   --> src/tokens.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 |     BangEqual,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Equal`
[INFO] [stdout]   --> src/tokens.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 21 |     Equal,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `EqualEqual`
[INFO] [stdout]   --> src/tokens.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 22 |     EqualEqual,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Greater`
[INFO] [stdout]   --> src/tokens.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 23 |     Greater,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `GreaterEqual`
[INFO] [stdout]   --> src/tokens.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 24 |     GreaterEqual,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Less`
[INFO] [stdout]   --> src/tokens.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 25 |     Less,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `LessEqual`
[INFO] [stdout]   --> src/tokens.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 26 |     LessEqual,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Identifier`
[INFO] [stdout]   --> src/tokens.rs:29:5
[INFO] [stdout]    |
[INFO] [stdout] 29 |     Identifier(String),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Str`
[INFO] [stdout]   --> src/tokens.rs:30:5
[INFO] [stdout]    |
[INFO] [stdout] 30 |     Str(String),
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Number`
[INFO] [stdout]   --> src/tokens.rs:31:5
[INFO] [stdout]    |
[INFO] [stdout] 31 |     Number,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `And`
[INFO] [stdout]   --> src/tokens.rs:34:5
[INFO] [stdout]    |
[INFO] [stdout] 34 |     And,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Class`
[INFO] [stdout]   --> src/tokens.rs:35:5
[INFO] [stdout]    |
[INFO] [stdout] 35 |     Class,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Else`
[INFO] [stdout]   --> src/tokens.rs:36:5
[INFO] [stdout]    |
[INFO] [stdout] 36 |     Else,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `False`
[INFO] [stdout]   --> src/tokens.rs:37:5
[INFO] [stdout]    |
[INFO] [stdout] 37 |     False,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Func`
[INFO] [stdout]   --> src/tokens.rs:38:5
[INFO] [stdout]    |
[INFO] [stdout] 38 |     Func,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `For`
[INFO] [stdout]   --> src/tokens.rs:39:5
[INFO] [stdout]    |
[INFO] [stdout] 39 |     For,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `If`
[INFO] [stdout]   --> src/tokens.rs:40:5
[INFO] [stdout]    |
[INFO] [stdout] 40 |     If,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Nil`
[INFO] [stdout]   --> src/tokens.rs:41:5
[INFO] [stdout]    |
[INFO] [stdout] 41 |     Nil,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Or`
[INFO] [stdout]   --> src/tokens.rs:42:5
[INFO] [stdout]    |
[INFO] [stdout] 42 |     Or,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Print`
[INFO] [stdout]   --> src/tokens.rs:43:5
[INFO] [stdout]    |
[INFO] [stdout] 43 |     Print,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Return`
[INFO] [stdout]   --> src/tokens.rs:44:5
[INFO] [stdout]    |
[INFO] [stdout] 44 |     Return,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Super`
[INFO] [stdout]   --> src/tokens.rs:45:5
[INFO] [stdout]    |
[INFO] [stdout] 45 |     Super,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `This`
[INFO] [stdout]   --> src/tokens.rs:46:5
[INFO] [stdout]    |
[INFO] [stdout] 46 |     This,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `True`
[INFO] [stdout]   --> src/tokens.rs:47:5
[INFO] [stdout]    |
[INFO] [stdout] 47 |     True,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Var`
[INFO] [stdout]   --> src/tokens.rs:48:5
[INFO] [stdout]    |
[INFO] [stdout] 48 |     Var,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `While`
[INFO] [stdout]   --> src/tokens.rs:49:5
[INFO] [stdout]    |
[INFO] [stdout] 49 |     While,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Eof`
[INFO] [stdout]   --> src/tokens.rs:51:5
[INFO] [stdout]    |
[INFO] [stdout] 51 |     Eof,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `to_string`
[INFO] [stdout]    --> src/tokens.rs:108:12
[INFO] [stdout]     |
[INFO] [stdout] 108 |     pub fn to_string(&self) -> String {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 44 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.22s
[INFO] running `Command { std: "docker" "inspect" "13a3382e30497284d247e49b9648dae9b667a495734d65752c30654a9ad9f392", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "13a3382e30497284d247e49b9648dae9b667a495734d65752c30654a9ad9f392", kill_on_drop: false }`
[INFO] [stdout] 13a3382e30497284d247e49b9648dae9b667a495734d65752c30654a9ad9f392
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9c029d3786724515c68f1f2140efdf8db556bbca3da7f4b0f23efb7c87f2fecf
[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" "9c029d3786724515c68f1f2140efdf8db556bbca3da7f4b0f23efb7c87f2fecf", kill_on_drop: false }`
[INFO] [stderr]    Compiling rlox v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> src/scanner.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `error`
[INFO] [stdout]  --> src/errors.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn error(line: i32, message: &str) -> bool {
[INFO] [stdout]   |        ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `report`
[INFO] [stdout]  --> src/errors.rs:6:4
[INFO] [stdout]   |
[INFO] [stdout] 6 | fn report(line: i32, error: &str, message: &str) {
[INFO] [stdout]   |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Scanner`
[INFO] [stdout]  --> src/scanner.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct Scanner {
[INFO] [stdout]   |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `LeftParen`
[INFO] [stdout]  --> src/tokens.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     LeftParen,
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `RightParen`
[INFO] [stdout]  --> src/tokens.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     RightParen,
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `LeftBrace`
[INFO] [stdout]  --> src/tokens.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     LeftBrace,
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `RightBrace`
[INFO] [stdout]  --> src/tokens.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     RightBrace,
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Comma`
[INFO] [stdout]   --> src/tokens.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     Comma,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Dot`
[INFO] [stdout]   --> src/tokens.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     Dot,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Minus`
[INFO] [stdout]   --> src/tokens.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     Minus,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Plus`
[INFO] [stdout]   --> src/tokens.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     Plus,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Semicolon`
[INFO] [stdout]   --> src/tokens.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 |     Semicolon,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Slash`
[INFO] [stdout]   --> src/tokens.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 |     Slash,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Star`
[INFO] [stdout]   --> src/tokens.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 |     Star,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Bang`
[INFO] [stdout]   --> src/tokens.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 |     Bang,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `BangEqual`
[INFO] [stdout]   --> src/tokens.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 |     BangEqual,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Equal`
[INFO] [stdout]   --> src/tokens.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 21 |     Equal,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `EqualEqual`
[INFO] [stdout]   --> src/tokens.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 22 |     EqualEqual,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Greater`
[INFO] [stdout]   --> src/tokens.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 23 |     Greater,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `GreaterEqual`
[INFO] [stdout]   --> src/tokens.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 24 |     GreaterEqual,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Less`
[INFO] [stdout]   --> src/tokens.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 25 |     Less,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `LessEqual`
[INFO] [stdout]   --> src/tokens.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 26 |     LessEqual,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Identifier`
[INFO] [stdout]   --> src/tokens.rs:29:5
[INFO] [stdout]    |
[INFO] [stdout] 29 |     Identifier(String),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Str`
[INFO] [stdout]   --> src/tokens.rs:30:5
[INFO] [stdout]    |
[INFO] [stdout] 30 |     Str(String),
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Number`
[INFO] [stdout]   --> src/tokens.rs:31:5
[INFO] [stdout]    |
[INFO] [stdout] 31 |     Number,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `And`
[INFO] [stdout]   --> src/tokens.rs:34:5
[INFO] [stdout]    |
[INFO] [stdout] 34 |     And,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Class`
[INFO] [stdout]   --> src/tokens.rs:35:5
[INFO] [stdout]    |
[INFO] [stdout] 35 |     Class,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Else`
[INFO] [stdout]   --> src/tokens.rs:36:5
[INFO] [stdout]    |
[INFO] [stdout] 36 |     Else,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `False`
[INFO] [stdout]   --> src/tokens.rs:37:5
[INFO] [stdout]    |
[INFO] [stdout] 37 |     False,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Func`
[INFO] [stdout]   --> src/tokens.rs:38:5
[INFO] [stdout]    |
[INFO] [stdout] 38 |     Func,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `For`
[INFO] [stdout]   --> src/tokens.rs:39:5
[INFO] [stdout]    |
[INFO] [stdout] 39 |     For,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `If`
[INFO] [stdout]   --> src/tokens.rs:40:5
[INFO] [stdout]    |
[INFO] [stdout] 40 |     If,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Nil`
[INFO] [stdout]   --> src/tokens.rs:41:5
[INFO] [stdout]    |
[INFO] [stdout] 41 |     Nil,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Or`
[INFO] [stdout]   --> src/tokens.rs:42:5
[INFO] [stdout]    |
[INFO] [stdout] 42 |     Or,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Print`
[INFO] [stdout]   --> src/tokens.rs:43:5
[INFO] [stdout]    |
[INFO] [stdout] 43 |     Print,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Return`
[INFO] [stdout]   --> src/tokens.rs:44:5
[INFO] [stdout]    |
[INFO] [stdout] 44 |     Return,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Super`
[INFO] [stdout]   --> src/tokens.rs:45:5
[INFO] [stdout]    |
[INFO] [stdout] 45 |     Super,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `This`
[INFO] [stdout]   --> src/tokens.rs:46:5
[INFO] [stdout]    |
[INFO] [stdout] 46 |     This,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `True`
[INFO] [stdout]   --> src/tokens.rs:47:5
[INFO] [stdout]    |
[INFO] [stdout] 47 |     True,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Var`
[INFO] [stdout]   --> src/tokens.rs:48:5
[INFO] [stdout]    |
[INFO] [stdout] 48 |     Var,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `While`
[INFO] [stdout]   --> src/tokens.rs:49:5
[INFO] [stdout]    |
[INFO] [stdout] 49 |     While,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Eof`
[INFO] [stdout]   --> src/tokens.rs:51:5
[INFO] [stdout]    |
[INFO] [stdout] 51 |     Eof,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `to_string`
[INFO] [stdout]    --> src/tokens.rs:108:12
[INFO] [stdout]     |
[INFO] [stdout] 108 |     pub fn to_string(&self) -> String {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 44 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.68s
[INFO] running `Command { std: "docker" "inspect" "9c029d3786724515c68f1f2140efdf8db556bbca3da7f4b0f23efb7c87f2fecf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9c029d3786724515c68f1f2140efdf8db556bbca3da7f4b0f23efb7c87f2fecf", kill_on_drop: false }`
[INFO] [stdout] 9c029d3786724515c68f1f2140efdf8db556bbca3da7f4b0f23efb7c87f2fecf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] c199121036b0570f7dcdcad52f4a22f5d4328baa349e2f1eb80cc7b2b6ed7f2e
[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" "c199121036b0570f7dcdcad52f4a22f5d4328baa349e2f1eb80cc7b2b6ed7f2e", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `std::collections::HashMap`
[INFO] [stderr]  --> src/scanner.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::collections::HashMap;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `error`
[INFO] [stderr]  --> src/errors.rs:1:8
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub fn error(line: i32, message: &str) -> bool {
[INFO] [stderr]   |        ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `report`
[INFO] [stderr]  --> src/errors.rs:6:4
[INFO] [stderr]   |
[INFO] [stderr] 6 | fn report(line: i32, error: &str, message: &str) {
[INFO] [stderr]   |    ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Scanner`
[INFO] [stderr]  --> src/scanner.rs:4:12
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub struct Scanner {
[INFO] [stderr]   |            ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `LeftParen`
[INFO] [stderr]  --> src/tokens.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 |     LeftParen,
[INFO] [stderr]   |     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `RightParen`
[INFO] [stderr]  --> src/tokens.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 |     RightParen,
[INFO] [stderr]   |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `LeftBrace`
[INFO] [stderr]  --> src/tokens.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     LeftBrace,
[INFO] [stderr]   |     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `RightBrace`
[INFO] [stderr]  --> src/tokens.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 |     RightBrace,
[INFO] [stderr]   |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Comma`
[INFO] [stderr]   --> src/tokens.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     Comma,
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Dot`
[INFO] [stderr]   --> src/tokens.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 |     Dot,
[INFO] [stderr]    |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Minus`
[INFO] [stderr]   --> src/tokens.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 |     Minus,
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Plus`
[INFO] [stderr]   --> src/tokens.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 |     Plus,
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Semicolon`
[INFO] [stderr]   --> src/tokens.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 |     Semicolon,
[INFO] [stderr]    |     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Slash`
[INFO] [stderr]   --> src/tokens.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 |     Slash,
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Star`
[INFO] [stderr]   --> src/tokens.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 |     Star,
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Bang`
[INFO] [stderr]   --> src/tokens.rs:19:5
[INFO] [stderr]    |
[INFO] [stderr] 19 |     Bang,
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `BangEqual`
[INFO] [stderr]   --> src/tokens.rs:20:5
[INFO] [stderr]    |
[INFO] [stderr] 20 |     BangEqual,
[INFO] [stderr]    |     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Equal`
[INFO] [stderr]   --> src/tokens.rs:21:5
[INFO] [stderr]    |
[INFO] [stderr] 21 |     Equal,
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `EqualEqual`
[INFO] [stderr]   --> src/tokens.rs:22:5
[INFO] [stderr]    |
[INFO] [stderr] 22 |     EqualEqual,
[INFO] [stderr]    |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Greater`
[INFO] [stderr]   --> src/tokens.rs:23:5
[INFO] [stderr]    |
[INFO] [stderr] 23 |     Greater,
[INFO] [stderr]    |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `GreaterEqual`
[INFO] [stderr]   --> src/tokens.rs:24:5
[INFO] [stderr]    |
[INFO] [stderr] 24 |     GreaterEqual,
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Less`
[INFO] [stderr]   --> src/tokens.rs:25:5
[INFO] [stderr]    |
[INFO] [stderr] 25 |     Less,
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `LessEqual`
[INFO] [stderr]   --> src/tokens.rs:26:5
[INFO] [stderr]    |
[INFO] [stderr] 26 |     LessEqual,
[INFO] [stderr]    |     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Identifier`
[INFO] [stderr]   --> src/tokens.rs:29:5
[INFO] [stderr]    |
[INFO] [stderr] 29 |     Identifier(String),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Str`
[INFO] [stderr]   --> src/tokens.rs:30:5
[INFO] [stderr]    |
[INFO] [stderr] 30 |     Str(String),
[INFO] [stderr]    |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Number`
[INFO] [stderr]   --> src/tokens.rs:31:5
[INFO] [stderr]    |
[INFO] [stderr] 31 |     Number,
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `And`
[INFO] [stderr]   --> src/tokens.rs:34:5
[INFO] [stderr]    |
[INFO] [stderr] 34 |     And,
[INFO] [stderr]    |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Class`
[INFO] [stderr]   --> src/tokens.rs:35:5
[INFO] [stderr]    |
[INFO] [stderr] 35 |     Class,
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Else`
[INFO] [stderr]   --> src/tokens.rs:36:5
[INFO] [stderr]    |
[INFO] [stderr] 36 |     Else,
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `False`
[INFO] [stderr]   --> src/tokens.rs:37:5
[INFO] [stderr]    |
[INFO] [stderr] 37 |     False,
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Func`
[INFO] [stderr]   --> src/tokens.rs:38:5
[INFO] [stderr]    |
[INFO] [stderr] 38 |     Func,
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `For`
[INFO] [stderr]   --> src/tokens.rs:39:5
[INFO] [stderr]    |
[INFO] [stderr] 39 |     For,
[INFO] [stderr]    |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `If`
[INFO] [stderr]   --> src/tokens.rs:40:5
[INFO] [stderr]    |
[INFO] [stderr] 40 |     If,
[INFO] [stderr]    |     ^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Nil`
[INFO] [stderr]   --> src/tokens.rs:41:5
[INFO] [stderr]    |
[INFO] [stderr] 41 |     Nil,
[INFO] [stderr]    |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Or`
[INFO] [stderr]   --> src/tokens.rs:42:5
[INFO] [stderr]    |
[INFO] [stderr] 42 |     Or,
[INFO] [stderr]    |     ^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Print`
[INFO] [stderr]   --> src/tokens.rs:43:5
[INFO] [stderr]    |
[INFO] [stderr] 43 |     Print,
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Return`
[INFO] [stderr]   --> src/tokens.rs:44:5
[INFO] [stderr]    |
[INFO] [stderr] 44 |     Return,
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Super`
[INFO] [stderr]   --> src/tokens.rs:45:5
[INFO] [stderr]    |
[INFO] [stderr] 45 |     Super,
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `This`
[INFO] [stderr]   --> src/tokens.rs:46:5
[INFO] [stderr]    |
[INFO] [stderr] 46 |     This,
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `True`
[INFO] [stderr]   --> src/tokens.rs:47:5
[INFO] [stderr]    |
[INFO] [stderr] 47 |     True,
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Var`
[INFO] [stderr]   --> src/tokens.rs:48:5
[INFO] [stderr]    |
[INFO] [stderr] 48 |     Var,
[INFO] [stderr]    |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `While`
[INFO] [stderr]   --> src/tokens.rs:49:5
[INFO] [stderr]    |
[INFO] [stderr] 49 |     While,
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Eof`
[INFO] [stderr]   --> src/tokens.rs:51:5
[INFO] [stderr]    |
[INFO] [stderr] 51 |     Eof,
[INFO] [stderr]    |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `to_string`
[INFO] [stderr]    --> src/tokens.rs:108:12
[INFO] [stderr]     |
[INFO] [stderr] 108 |     pub fn to_string(&self) -> String {
[INFO] [stderr]     |            ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 44 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[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] [stderr]      Running /opt/rustwide/target/debug/deps/rlox-770139c80403a68b
[INFO] running `Command { std: "docker" "inspect" "c199121036b0570f7dcdcad52f4a22f5d4328baa349e2f1eb80cc7b2b6ed7f2e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c199121036b0570f7dcdcad52f4a22f5d4328baa349e2f1eb80cc7b2b6ed7f2e", kill_on_drop: false }`
[INFO] [stdout] c199121036b0570f7dcdcad52f4a22f5d4328baa349e2f1eb80cc7b2b6ed7f2e