[INFO] cloning repository https://github.com/MonkeyToiletLadder/oscar
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/MonkeyToiletLadder/oscar" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMonkeyToiletLadder%2Foscar", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMonkeyToiletLadder%2Foscar'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] dfea18051a68f028a42be7a3bc86d816c9606956
[INFO] checking MonkeyToiletLadder/oscar against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMonkeyToiletLadder%2Foscar" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/MonkeyToiletLadder/oscar on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/MonkeyToiletLadder/oscar
[INFO] finished tweaking git repo https://github.com/MonkeyToiletLadder/oscar
[INFO] tweaked toml for git repo https://github.com/MonkeyToiletLadder/oscar written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/MonkeyToiletLadder/oscar already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6b23eb2840bd94856427563f3608cdf27a16a3878eb43e1d480eeb4a85cf2bcd
[INFO] running `Command { std: "docker" "start" "-a" "6b23eb2840bd94856427563f3608cdf27a16a3878eb43e1d480eeb4a85cf2bcd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6b23eb2840bd94856427563f3608cdf27a16a3878eb43e1d480eeb4a85cf2bcd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6b23eb2840bd94856427563f3608cdf27a16a3878eb43e1d480eeb4a85cf2bcd", kill_on_drop: false }`
[INFO] [stdout] 6b23eb2840bd94856427563f3608cdf27a16a3878eb43e1d480eeb4a85cf2bcd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e6f436fa2eebb55ea7cf837beae3f2da6ea3aaf0d17fe05d31e6d5477c7505a8
[INFO] running `Command { std: "docker" "start" "-a" "e6f436fa2eebb55ea7cf837beae3f2da6ea3aaf0d17fe05d31e6d5477c7505a8", kill_on_drop: false }`
[INFO] [stderr]     Checking oscar v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `parser::Parser`
[INFO] [stdout]  --> src/grover/evaluator.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use parser::Parser;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `parser::Parser`
[INFO] [stdout]  --> src/grover/evaluator.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use parser::Parser;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `token::Token`
[INFO] [stdout]  --> src/grover.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub use token::Token;
[INFO] [stdout]   |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `token::Associativity`
[INFO] [stdout]  --> src/grover.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub use token::Associativity;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `token::Token`
[INFO] [stdout]  --> src/grover.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub use token::Token;
[INFO] [stdout]   |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `error::Error`
[INFO] [stdout]  --> src/grover.rs:8:9
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub use error::Error;
[INFO] [stdout]   |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `error::ErrorCode`
[INFO] [stdout]  --> src/grover.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub use error::ErrorCode;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `token::Associativity`
[INFO] [stdout]  --> src/grover.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub use token::Associativity;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `error::Error`
[INFO] [stdout]  --> src/grover.rs:8:9
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub use error::Error;
[INFO] [stdout]   |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `error::ErrorCode`
[INFO] [stdout]  --> src/grover.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub use error::ErrorCode;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]    --> src/grover/token.rs:325:9
[INFO] [stdout]     |
[INFO] [stdout] 186 | /         match character {
[INFO] [stdout] 187 | |             // Variables
[INFO] [stdout] 188 | |             '$' => {
[INFO] [stdout] 189 | |                 let mut identifier = String::from("$");
[INFO] [stdout] ...   |
[INFO] [stdout] 322 | |             }
[INFO] [stdout] 323 | |         };
[INFO] [stdout]     | |_________- any code following this `match` expression is unreachable, as all arms diverge
[INFO] [stdout] 324 |           // No Characters Found
[INFO] [stdout] 325 |           self.state(TokenIterator::END);
[INFO] [stdout]     |           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]    --> src/grover/token.rs:325:9
[INFO] [stdout]     |
[INFO] [stdout] 186 | /         match character {
[INFO] [stdout] 187 | |             // Variables
[INFO] [stdout] 188 | |             '$' => {
[INFO] [stdout] 189 | |                 let mut identifier = String::from("$");
[INFO] [stdout] ...   |
[INFO] [stdout] 322 | |             }
[INFO] [stdout] 323 | |         };
[INFO] [stdout]     | |_________- any code following this `match` expression is unreachable, as all arms diverge
[INFO] [stdout] 324 |           // No Characters Found
[INFO] [stdout] 325 |           self.state(TokenIterator::END);
[INFO] [stdout]     |           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/grover/token.rs:179:13
[INFO] [stdout]     |
[INFO] [stdout] 179 |         let mut character: char = match self.chars.next() {
[INFO] [stdout]     |             ----^^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/grover/token.rs:179:13
[INFO] [stdout]     |
[INFO] [stdout] 179 |         let mut character: char = match self.chars.next() {
[INFO] [stdout]     |             ----^^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ans`
[INFO] [stdout]   --> src/grover/evaluator.rs:85:13
[INFO] [stdout]    |
[INFO] [stdout] 85 |         let ans = 0f64;
[INFO] [stdout]    |             ^^^ help: if this is intentional, prefix it with an underscore: `_ans`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ans`
[INFO] [stdout]   --> src/grover/evaluator.rs:85:13
[INFO] [stdout]    |
[INFO] [stdout] 85 |         let ans = 0f64;
[INFO] [stdout]    |             ^^^ help: if this is intentional, prefix it with an underscore: `_ans`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]  --> src/main.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 |     let mut lexer = grover::TokenIterator::new("(5   +4) * 2", 10);
[INFO] [stdout]   |         ----^^^^^
[INFO] [stdout]   |         |
[INFO] [stdout]   |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `good` and `end` are never used
[INFO] [stdout]    --> src/grover/token.rs:152:12
[INFO] [stdout]     |
[INFO] [stdout] 134 | impl<'a> TokenIterator<'a> {
[INFO] [stdout]     | -------------------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 152 |     pub fn good(&self) -> bool {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 158 |     pub fn end(&self) -> bool {
[INFO] [stdout]     |            ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `code` is never read
[INFO] [stdout]   --> src/grover/error.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub struct Error {
[INFO] [stdout]    |            ----- field in this struct
[INFO] [stdout] 11 |     pub code: ErrorCode,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]  --> src/main.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 |     let mut lexer = grover::TokenIterator::new("(5   +4) * 2", 10);
[INFO] [stdout]   |         ----^^^^^
[INFO] [stdout]   |         |
[INFO] [stdout]   |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `good` and `end` are never used
[INFO] [stdout]    --> src/grover/token.rs:152:12
[INFO] [stdout]     |
[INFO] [stdout] 134 | impl<'a> TokenIterator<'a> {
[INFO] [stdout]     | -------------------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 152 |     pub fn good(&self) -> bool {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 158 |     pub fn end(&self) -> bool {
[INFO] [stdout]     |            ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `code` is never read
[INFO] [stdout]   --> src/grover/error.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub struct Error {
[INFO] [stdout]    |            ----- field in this struct
[INFO] [stdout] 11 |     pub code: ErrorCode,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.12s
[INFO] running `Command { std: "docker" "inspect" "e6f436fa2eebb55ea7cf837beae3f2da6ea3aaf0d17fe05d31e6d5477c7505a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e6f436fa2eebb55ea7cf837beae3f2da6ea3aaf0d17fe05d31e6d5477c7505a8", kill_on_drop: false }`
[INFO] [stdout] e6f436fa2eebb55ea7cf837beae3f2da6ea3aaf0d17fe05d31e6d5477c7505a8
[INFO] checking MonkeyToiletLadder/oscar against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMonkeyToiletLadder%2Foscar" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/MonkeyToiletLadder/oscar on toolchain 3a4bc97f6385a3aa300a4fd689b44350e54fd676
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/MonkeyToiletLadder/oscar
[INFO] finished tweaking git repo https://github.com/MonkeyToiletLadder/oscar
[INFO] tweaked toml for git repo https://github.com/MonkeyToiletLadder/oscar written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/MonkeyToiletLadder/oscar already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 91e07744850ae4c53cdb1d4ca79dad7f47ed308c460138066d7190f9c512daa4
[INFO] running `Command { std: "docker" "start" "-a" "91e07744850ae4c53cdb1d4ca79dad7f47ed308c460138066d7190f9c512daa4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "91e07744850ae4c53cdb1d4ca79dad7f47ed308c460138066d7190f9c512daa4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "91e07744850ae4c53cdb1d4ca79dad7f47ed308c460138066d7190f9c512daa4", kill_on_drop: false }`
[INFO] [stdout] 91e07744850ae4c53cdb1d4ca79dad7f47ed308c460138066d7190f9c512daa4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d8ae2cfa08c0e4ffe72e9f3a87365b0834415c0590f3ad22ceeb1dd486381153
[INFO] running `Command { std: "docker" "start" "-a" "d8ae2cfa08c0e4ffe72e9f3a87365b0834415c0590f3ad22ceeb1dd486381153", kill_on_drop: false }`
[INFO] [stderr]     Checking oscar v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `parser::Parser`
[INFO] [stdout]  --> src/grover/evaluator.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use parser::Parser;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `token::Token`
[INFO] [stdout]  --> src/grover.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub use token::Token;
[INFO] [stdout]   |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `token::Associativity`
[INFO] [stdout]  --> src/grover.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub use token::Associativity;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `error::Error`
[INFO] [stdout]  --> src/grover.rs:8:9
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub use error::Error;
[INFO] [stdout]   |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `error::ErrorCode`
[INFO] [stdout]  --> src/grover.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub use error::ErrorCode;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `parser::Parser`
[INFO] [stdout]  --> src/grover/evaluator.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use parser::Parser;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `token::Token`
[INFO] [stdout]  --> src/grover.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub use token::Token;
[INFO] [stdout]   |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `token::Associativity`
[INFO] [stdout]  --> src/grover.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub use token::Associativity;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `error::Error`
[INFO] [stdout]  --> src/grover.rs:8:9
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub use error::Error;
[INFO] [stdout]   |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `error::ErrorCode`
[INFO] [stdout]  --> src/grover.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub use error::ErrorCode;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]    --> src/grover/token.rs:325:9
[INFO] [stdout]     |
[INFO] [stdout] 186 | /         match character {
[INFO] [stdout] 187 | |             // Variables
[INFO] [stdout] 188 | |             '$' => {
[INFO] [stdout] 189 | |                 let mut identifier = String::from("$");
[INFO] [stdout] ...   |
[INFO] [stdout] 322 | |             }
[INFO] [stdout] 323 | |         };
[INFO] [stdout]     | |_________- any code following this `match` expression is unreachable, as all arms diverge
[INFO] [stdout] 324 |           // No Characters Found
[INFO] [stdout] 325 |           self.state(TokenIterator::END);
[INFO] [stdout]     |           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]    --> src/grover/token.rs:325:9
[INFO] [stdout]     |
[INFO] [stdout] 186 | /         match character {
[INFO] [stdout] 187 | |             // Variables
[INFO] [stdout] 188 | |             '$' => {
[INFO] [stdout] 189 | |                 let mut identifier = String::from("$");
[INFO] [stdout] ...   |
[INFO] [stdout] 322 | |             }
[INFO] [stdout] 323 | |         };
[INFO] [stdout]     | |_________- any code following this `match` expression is unreachable, as all arms diverge
[INFO] [stdout] 324 |           // No Characters Found
[INFO] [stdout] 325 |           self.state(TokenIterator::END);
[INFO] [stdout]     |           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0284]: type annotations needed: cannot satisfy `_ -> _`
[INFO] [stdout]    --> src/grover/token.rs:228:17
[INFO] [stdout]     |
[INFO] [stdout] 228 | /                 if self.chars.peek() == Some(&'=') {
[INFO] [stdout] 229 | |                     return match character {
[INFO] [stdout] 230 | |                         '+' => {
[INFO] [stdout] 231 | |                             self.chars.next();
[INFO] [stdout] ...   |
[INFO] [stdout] 274 | |                     };
[INFO] [stdout] 275 | |                 }
[INFO] [stdout]     | |_________________^ cannot satisfy `_ -> _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0284]: type annotations needed: cannot satisfy `_ -> _`
[INFO] [stdout]    --> src/grover/token.rs:228:17
[INFO] [stdout]     |
[INFO] [stdout] 228 | /                 if self.chars.peek() == Some(&'=') {
[INFO] [stdout] 229 | |                     return match character {
[INFO] [stdout] 230 | |                         '+' => {
[INFO] [stdout] 231 | |                             self.chars.next();
[INFO] [stdout] ...   |
[INFO] [stdout] 274 | |                     };
[INFO] [stdout] 275 | |                 }
[INFO] [stdout]     | |_________________^ cannot satisfy `_ -> _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ans`
[INFO] [stdout]   --> src/grover/evaluator.rs:85:13
[INFO] [stdout]    |
[INFO] [stdout] 85 |         let ans = 0f64;
[INFO] [stdout]    |             ^^^ help: if this is intentional, prefix it with an underscore: `_ans`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ans`
[INFO] [stdout]   --> src/grover/evaluator.rs:85:13
[INFO] [stdout]    |
[INFO] [stdout] 85 |         let ans = 0f64;
[INFO] [stdout]    |             ^^^ help: if this is intentional, prefix it with an underscore: `_ans`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]  --> src/main.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 |     let mut lexer = grover::TokenIterator::new("(5   +4) * 2", 10);
[INFO] [stdout]   |         ----^^^^^
[INFO] [stdout]   |         |
[INFO] [stdout]   |         help: remove this `mut`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]  --> src/main.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 |     let mut lexer = grover::TokenIterator::new("(5   +4) * 2", 10);
[INFO] [stdout]   |         ----^^^^^
[INFO] [stdout]   |         |
[INFO] [stdout]   |         help: remove this `mut`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error; 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0284`.
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error; 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0284`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `oscar` (bin "oscar") due to 2 previous errors; 8 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `oscar` (bin "oscar" test) due to 2 previous errors; 8 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "d8ae2cfa08c0e4ffe72e9f3a87365b0834415c0590f3ad22ceeb1dd486381153", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d8ae2cfa08c0e4ffe72e9f3a87365b0834415c0590f3ad22ceeb1dd486381153", kill_on_drop: false }`
[INFO] [stdout] d8ae2cfa08c0e4ffe72e9f3a87365b0834415c0590f3ad22ceeb1dd486381153