[INFO] fetching crate maroon 0.1.0...
[INFO] checking maroon-0.1.0 against master#8321f00bf4a5f25cad5ec8861c5469afe6e0ce8b for pr-133925
[INFO] extracting crate maroon 0.1.0 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate maroon 0.1.0 on toolchain 8321f00bf4a5f25cad5ec8861c5469afe6e0ce8b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8321f00bf4a5f25cad5ec8861c5469afe6e0ce8b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate maroon 0.1.0
[INFO] finished tweaking crates.io crate maroon 0.1.0
[INFO] tweaked toml for crates.io crate maroon 0.1.0 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate crates.io crate maroon 0.1.0 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" "+8321f00bf4a5f25cad5ec8861c5469afe6e0ce8b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:c80049f3b88b82089a44e0f06d0d6029d44b96b7257e55a1cd63dbc9f4c33334" "/opt/rustwide/cargo-home/bin/cargo" "+8321f00bf4a5f25cad5ec8861c5469afe6e0ce8b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 17e9c44e56e266bae0b48289e23b5cf28ea5976297533138cfaabc876dd2373f
[INFO] running `Command { std: "docker" "start" "-a" "17e9c44e56e266bae0b48289e23b5cf28ea5976297533138cfaabc876dd2373f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "17e9c44e56e266bae0b48289e23b5cf28ea5976297533138cfaabc876dd2373f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "17e9c44e56e266bae0b48289e23b5cf28ea5976297533138cfaabc876dd2373f", kill_on_drop: false }`
[INFO] [stdout] 17e9c44e56e266bae0b48289e23b5cf28ea5976297533138cfaabc876dd2373f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:c80049f3b88b82089a44e0f06d0d6029d44b96b7257e55a1cd63dbc9f4c33334" "/opt/rustwide/cargo-home/bin/cargo" "+8321f00bf4a5f25cad5ec8861c5469afe6e0ce8b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a950b3b0e73f89586b4c1cfafdeac32c9bb890e9097dc84270a12236fe4f23a8
[INFO] running `Command { std: "docker" "start" "-a" "a950b3b0e73f89586b4c1cfafdeac32c9bb890e9097dc84270a12236fe4f23a8", kill_on_drop: false }`
[INFO] [stderr]     Checking maroon v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> src/parser.rs:114:3
[INFO] [stdout]     |
[INFO] [stdout] 101 | /   loop {
[INFO] [stdout] 102 | |     match tokens.peek() {
[INFO] [stdout] 103 | |       Some(Token::CBRACKET(line)) => {
[INFO] [stdout] 104 | |         tokens.next();
[INFO] [stdout] ...   |
[INFO] [stdout] 112 | |     };
[INFO] [stdout] 113 | |   }
[INFO] [stdout]     | |___- any code following this expression is unreachable
[INFO] [stdout] 114 |     Err(ParseError::Unknown(2))
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable expression
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> src/parser.rs:133:3
[INFO] [stdout]     |
[INFO] [stdout] 120 | /   loop {
[INFO] [stdout] 121 | |     match tokens.peek() {
[INFO] [stdout] 122 | |       Some(Token::CPAREN(line)) => {
[INFO] [stdout] 123 | |         tokens.next();
[INFO] [stdout] ...   |
[INFO] [stdout] 131 | |     };
[INFO] [stdout] 132 | |   }
[INFO] [stdout]     | |___- any code following this expression is unreachable
[INFO] [stdout] 133 |     Err(ParseError::Unknown(3))
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable expression
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> src/parser.rs:114:3
[INFO] [stdout]     |
[INFO] [stdout] 101 | /   loop {
[INFO] [stdout] 102 | |     match tokens.peek() {
[INFO] [stdout] 103 | |       Some(Token::CBRACKET(line)) => {
[INFO] [stdout] 104 | |         tokens.next();
[INFO] [stdout] ...   |
[INFO] [stdout] 112 | |     };
[INFO] [stdout] 113 | |   }
[INFO] [stdout]     | |___- any code following this expression is unreachable
[INFO] [stdout] 114 |     Err(ParseError::Unknown(2))
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable expression
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> src/parser.rs:133:3
[INFO] [stdout]     |
[INFO] [stdout] 120 | /   loop {
[INFO] [stdout] 121 | |     match tokens.peek() {
[INFO] [stdout] 122 | |       Some(Token::CPAREN(line)) => {
[INFO] [stdout] 123 | |         tokens.next();
[INFO] [stdout] ...   |
[INFO] [stdout] 131 | |     };
[INFO] [stdout] 132 | |   }
[INFO] [stdout]     | |___- any code following this expression is unreachable
[INFO] [stdout] 133 |     Err(ParseError::Unknown(3))
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable expression
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `fndec`
[INFO] [stdout]    --> src/parser.rs:151:19
[INFO] [stdout]     |
[INFO] [stdout] 151 |               let fndec = stmt[0].clone();
[INFO] [stdout]     |                   ^^^^^ help: if this is intentional, prefix it with an underscore: `_fndec`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `fndec`
[INFO] [stdout]    --> src/parser.rs:151:19
[INFO] [stdout]     |
[INFO] [stdout] 151 |               let fndec = stmt[0].clone();
[INFO] [stdout]     |                   ^^^^^ help: if this is intentional, prefix it with an underscore: `_fndec`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `builtins` is never used
[INFO] [stdout]   --> src/parser.rs:16:7
[INFO] [stdout]    |
[INFO] [stdout] 16 | const builtins: &'static [&'static str] = &[
[INFO] [stdout]    |       ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `keywords` should have an upper case name
[INFO] [stdout]   --> src/parser.rs:13:7
[INFO] [stdout]    |
[INFO] [stdout] 13 | const keywords: &'static [&'static str] = &[
[INFO] [stdout]    |       ^^^^^^^^ help: convert the identifier to upper case: `KEYWORDS`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `builtins` should have an upper case name
[INFO] [stdout]   --> src/parser.rs:16:7
[INFO] [stdout]    |
[INFO] [stdout] 16 | const builtins: &'static [&'static str] = &[
[INFO] [stdout]    |       ^^^^^^^^ help: convert the identifier to upper case: `BUILTINS`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `builtins` is never used
[INFO] [stdout]   --> src/parser.rs:16:7
[INFO] [stdout]    |
[INFO] [stdout] 16 | const builtins: &'static [&'static str] = &[
[INFO] [stdout]    |       ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `keywords` should have an upper case name
[INFO] [stdout]   --> src/parser.rs:13:7
[INFO] [stdout]    |
[INFO] [stdout] 13 | const keywords: &'static [&'static str] = &[
[INFO] [stdout]    |       ^^^^^^^^ help: convert the identifier to upper case: `KEYWORDS`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `builtins` should have an upper case name
[INFO] [stdout]   --> src/parser.rs:16:7
[INFO] [stdout]    |
[INFO] [stdout] 16 | const builtins: &'static [&'static str] = &[
[INFO] [stdout]    |       ^^^^^^^^ help: convert the identifier to upper case: `BUILTINS`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.13s
[INFO] running `Command { std: "docker" "inspect" "a950b3b0e73f89586b4c1cfafdeac32c9bb890e9097dc84270a12236fe4f23a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a950b3b0e73f89586b4c1cfafdeac32c9bb890e9097dc84270a12236fe4f23a8", kill_on_drop: false }`
[INFO] [stdout] a950b3b0e73f89586b4c1cfafdeac32c9bb890e9097dc84270a12236fe4f23a8