[INFO] cloning repository https://github.com/unic0rn9k/chant
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/unic0rn9k/chant" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Funic0rn9k%2Fchant", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Funic0rn9k%2Fchant'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] bd7240a87f161d013c500a31e0bf3ddb6760c4fe
[INFO] checking unic0rn9k/chant against master#64b185eddaa1d7ddf5e0c024be23b9cbba6c1722 for pr-143929
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Funic0rn9k%2Fchant" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/unic0rn9k/chant
[INFO] finished tweaking git repo https://github.com/unic0rn9k/chant
[INFO] tweaked toml for git repo https://github.com/unic0rn9k/chant written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/unic0rn9k/chant on toolchain 64b185eddaa1d7ddf5e0c024be23b9cbba6c1722
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+64b185eddaa1d7ddf5e0c024be23b9cbba6c1722" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/unic0rn9k/chant 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" "+64b185eddaa1d7ddf5e0c024be23b9cbba6c1722" "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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+64b185eddaa1d7ddf5e0c024be23b9cbba6c1722" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d35b6acc445157ac5a57232fb36179fc3ec63c2d3344aad85cd2353fdaa85a19
[INFO] running `Command { std: "docker" "start" "-a" "d35b6acc445157ac5a57232fb36179fc3ec63c2d3344aad85cd2353fdaa85a19", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d35b6acc445157ac5a57232fb36179fc3ec63c2d3344aad85cd2353fdaa85a19", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d35b6acc445157ac5a57232fb36179fc3ec63c2d3344aad85cd2353fdaa85a19", kill_on_drop: false }`
[INFO] [stdout] d35b6acc445157ac5a57232fb36179fc3ec63c2d3344aad85cd2353fdaa85a19
[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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+64b185eddaa1d7ddf5e0c024be23b9cbba6c1722" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 430c1b96d954756e8c46806ca325e4c994232cb422eafde17029a80a624674d0
[INFO] running `Command { std: "docker" "start" "-a" "430c1b96d954756e8c46806ca325e4c994232cb422eafde17029a80a624674d0", kill_on_drop: false }`
[INFO] [stderr]    Compiling anyhow v1.0.58
[INFO] [stderr]     Checking chantrs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::marker::PhantomData`
[INFO] [stdout]  --> src/parser.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::marker::PhantomData;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::marker::PhantomData`
[INFO] [stdout]  --> src/parser.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::marker::PhantomData;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `OPERATOR_CHARS` is never used
[INFO] [stdout]  --> src/parser.rs:6:7
[INFO] [stdout]   |
[INFO] [stdout] 6 | const OPERATOR_CHARS: &str = ":=+-/*^&%|<>!";
[INFO] [stdout]   |       ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `SEPARATOR_CHARS` is never used
[INFO] [stdout]  --> src/parser.rs:7:7
[INFO] [stdout]   |
[INFO] [stdout] 7 | const SEPARATOR_CHARS: &str = ",.(){}[]";
[INFO] [stdout]   |       ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `WHITESPACE_CHARS` is never used
[INFO] [stdout]  --> src/parser.rs:8:7
[INFO] [stdout]   |
[INFO] [stdout] 8 | const WHITESPACE_CHARS: &str = " \t\n";
[INFO] [stdout]   |       ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Token` is never used
[INFO] [stdout]   --> src/parser.rs:12:10
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub enum Token {
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `number` is never used
[INFO] [stdout]   --> src/parser.rs:22:8
[INFO] [stdout]    |
[INFO] [stdout] 21 | impl Token {
[INFO] [stdout]    | ---------- method in this implementation
[INFO] [stdout] 22 |     fn number(&mut self) -> &mut f64 {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Parser` is never used
[INFO] [stdout]   --> src/parser.rs:38:11
[INFO] [stdout]    |
[INFO] [stdout] 38 | pub trait Parser {
[INFO] [stdout]    |           ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `NaturalNumber` is never constructed
[INFO] [stdout]   --> src/parser.rs:65:12
[INFO] [stdout]    |
[INFO] [stdout] 65 | pub struct NaturalNumber;
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Integer` is never constructed
[INFO] [stdout]   --> src/parser.rs:88:12
[INFO] [stdout]    |
[INFO] [stdout] 88 | pub struct Integer;
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Float` is never constructed
[INFO] [stdout]    --> src/parser.rs:109:12
[INFO] [stdout]     |
[INFO] [stdout] 109 | pub struct Float;
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Symbol` is never constructed
[INFO] [stdout]    --> src/parser.rs:133:12
[INFO] [stdout]     |
[INFO] [stdout] 133 | pub struct Symbol;
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Operator` is never constructed
[INFO] [stdout]    --> src/parser.rs:166:12
[INFO] [stdout]     |
[INFO] [stdout] 166 | pub struct Operator;
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Separator` is never constructed
[INFO] [stdout]    --> src/parser.rs:189:12
[INFO] [stdout]     |
[INFO] [stdout] 189 | pub struct Separator;
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Then` is never constructed
[INFO] [stdout]    --> src/parser.rs:204:12
[INFO] [stdout]     |
[INFO] [stdout] 204 | pub struct Then<A: Parser, B: Parser>(A, B);
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `EatPrecedingWhitespace` is never constructed
[INFO] [stdout]    --> src/parser.rs:216:12
[INFO] [stdout]     |
[INFO] [stdout] 216 | pub struct EatPrecedingWhitespace<A: Parser>(A);
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `IfLiteral` is never constructed
[INFO] [stdout]    --> src/parser.rs:236:12
[INFO] [stdout]     |
[INFO] [stdout] 236 | pub struct IfLiteral<A: Parser>(A, String);
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `String` is never constructed
[INFO] [stdout]   --> src/parser.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub enum Token {
[INFO] [stdout]    |          ----- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 15 |     String(String),
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Token` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.86s
[INFO] running `Command { std: "docker" "inspect" "430c1b96d954756e8c46806ca325e4c994232cb422eafde17029a80a624674d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "430c1b96d954756e8c46806ca325e4c994232cb422eafde17029a80a624674d0", kill_on_drop: false }`
[INFO] [stdout] 430c1b96d954756e8c46806ca325e4c994232cb422eafde17029a80a624674d0