[INFO] cloning repository https://github.com/WardToulet/chain
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/WardToulet/chain" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FWardToulet%2Fchain", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FWardToulet%2Fchain'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 01eb2f430f020d29f5696cbbdcd7a39f38a38ee3
[INFO] checking WardToulet/chain against master#a609fb45efad59dfd459c76e50899be9f0583b5a for pr-80579
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FWardToulet%2Fchain" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/WardToulet/chain on toolchain a609fb45efad59dfd459c76e50899be9f0583b5a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/WardToulet/chain
[INFO] finished tweaking git repo https://github.com/WardToulet/chain
[INFO] tweaked toml for git repo https://github.com/WardToulet/chain written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/WardToulet/chain already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6b5566d8fe56008d7146cb633777f498c9192e4e07a386c0f4060b3288d3f136
[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" "6b5566d8fe56008d7146cb633777f498c9192e4e07a386c0f4060b3288d3f136", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6b5566d8fe56008d7146cb633777f498c9192e4e07a386c0f4060b3288d3f136", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6b5566d8fe56008d7146cb633777f498c9192e4e07a386c0f4060b3288d3f136", kill_on_drop: false }`
[INFO] [stdout] 6b5566d8fe56008d7146cb633777f498c9192e4e07a386c0f4060b3288d3f136
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ad12ab6f18ad356d74141756759495ba1aadb11cecc2b4e05690f2264fb01b44
[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" "ad12ab6f18ad356d74141756759495ba1aadb11cecc2b4e05690f2264fb01b44", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking chainc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variant is never constructed: `Arrow`
[INFO] [stdout]  --> src/lexer/lex_token.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     Arrow,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Colon`
[INFO] [stdout]  --> src/lexer/lex_token.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     Colon,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `SemiColon`
[INFO] [stdout]  --> src/lexer/lex_token.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     SemiColon,
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `ParanthesisOpen`
[INFO] [stdout]  --> src/lexer/lex_token.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     ParanthesisOpen,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `ParanthesisClose`
[INFO] [stdout]  --> src/lexer/lex_token.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     ParanthesisClose,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `BracketOpen`
[INFO] [stdout]   --> src/lexer/lex_token.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     BracketOpen,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `BracketClose`
[INFO] [stdout]   --> src/lexer/lex_token.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     BracketClose,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `BraceOpen`
[INFO] [stdout]   --> src/lexer/lex_token.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     BraceOpen,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `BraceClose`
[INFO] [stdout]   --> src/lexer/lex_token.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 |     BraceClose,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Plus`
[INFO] [stdout]   --> src/lexer/lex_token.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 |     Plus,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Minus`
[INFO] [stdout]   --> src/lexer/lex_token.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 |     Minus,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Star`
[INFO] [stdout]   --> src/lexer/lex_token.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 |     Star,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Slash`
[INFO] [stdout]   --> src/lexer/lex_token.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 |     Slash,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Percent`
[INFO] [stdout]   --> src/lexer/lex_token.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 |     Percent,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `PlusPlus`
[INFO] [stdout]   --> src/lexer/lex_token.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 22 |     PlusPlus,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `MinusMinus`
[INFO] [stdout]   --> src/lexer/lex_token.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 23 |     MinusMinus,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Equals`
[INFO] [stdout]   --> src/lexer/lex_token.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 25 |     Equals,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `EqualsEquals`
[INFO] [stdout]   --> src/lexer/lex_token.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 26 |     EqualsEquals,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `PlusEquals`
[INFO] [stdout]   --> src/lexer/lex_token.rs:28:5
[INFO] [stdout]    |
[INFO] [stdout] 28 |     PlusEquals,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `MinusEquals`
[INFO] [stdout]   --> src/lexer/lex_token.rs:29:5
[INFO] [stdout]    |
[INFO] [stdout] 29 |     MinusEquals,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `StarEquals`
[INFO] [stdout]   --> src/lexer/lex_token.rs:30:5
[INFO] [stdout]    |
[INFO] [stdout] 30 |     StarEquals,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `SlashEquals`
[INFO] [stdout]   --> src/lexer/lex_token.rs:31:5
[INFO] [stdout]    |
[INFO] [stdout] 31 |     SlashEquals,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `PercentEquals`
[INFO] [stdout]   --> src/lexer/lex_token.rs:32:5
[INFO] [stdout]    |
[INFO] [stdout] 32 |     PercentEquals,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `GreatherThen`
[INFO] [stdout]   --> src/lexer/lex_token.rs:34:5
[INFO] [stdout]    |
[INFO] [stdout] 34 |     GreatherThen,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `GreatherThenOrEqual`
[INFO] [stdout]   --> src/lexer/lex_token.rs:35:5
[INFO] [stdout]    |
[INFO] [stdout] 35 |     GreatherThenOrEqual,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `SmallerThen`
[INFO] [stdout]   --> src/lexer/lex_token.rs:37:5
[INFO] [stdout]    |
[INFO] [stdout] 37 |     SmallerThen,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `SmallerThenOrEuqal`
[INFO] [stdout]   --> src/lexer/lex_token.rs:38:5
[INFO] [stdout]    |
[INFO] [stdout] 38 |     SmallerThenOrEuqal,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `I8`
[INFO] [stdout]   --> src/lexer/lex_token.rs:40:5
[INFO] [stdout]    |
[INFO] [stdout] 40 |     I8,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `I16`
[INFO] [stdout]   --> src/lexer/lex_token.rs:41:5
[INFO] [stdout]    |
[INFO] [stdout] 41 |     I16,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `I32`
[INFO] [stdout]   --> src/lexer/lex_token.rs:42:5
[INFO] [stdout]    |
[INFO] [stdout] 42 |     I32,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `I64`
[INFO] [stdout]   --> src/lexer/lex_token.rs:43:5
[INFO] [stdout]    |
[INFO] [stdout] 43 |     I64,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `U8`
[INFO] [stdout]   --> src/lexer/lex_token.rs:45:5
[INFO] [stdout]    |
[INFO] [stdout] 45 |     U8,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `U16`
[INFO] [stdout]   --> src/lexer/lex_token.rs:46:5
[INFO] [stdout]    |
[INFO] [stdout] 46 |     U16,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `U32`
[INFO] [stdout]   --> src/lexer/lex_token.rs:47:5
[INFO] [stdout]    |
[INFO] [stdout] 47 |     U32,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `U64`
[INFO] [stdout]   --> src/lexer/lex_token.rs:48:5
[INFO] [stdout]    |
[INFO] [stdout] 48 |     U64,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `F32`
[INFO] [stdout]   --> src/lexer/lex_token.rs:50:5
[INFO] [stdout]    |
[INFO] [stdout] 50 |     F32,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `F64`
[INFO] [stdout]   --> src/lexer/lex_token.rs:51:5
[INFO] [stdout]    |
[INFO] [stdout] 51 |     F64,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Boolean`
[INFO] [stdout]   --> src/lexer/lex_token.rs:53:5
[INFO] [stdout]    |
[INFO] [stdout] 53 |     Boolean,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Character`
[INFO] [stdout]   --> src/lexer/lex_token.rs:55:5
[INFO] [stdout]    |
[INFO] [stdout] 55 |     Character,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `True`
[INFO] [stdout]   --> src/lexer/lex_token.rs:57:5
[INFO] [stdout]    |
[INFO] [stdout] 57 |     True,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `False`
[INFO] [stdout]   --> src/lexer/lex_token.rs:58:5
[INFO] [stdout]    |
[INFO] [stdout] 58 |     False,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Let`
[INFO] [stdout]   --> src/lexer/lex_token.rs:60:5
[INFO] [stdout]    |
[INFO] [stdout] 60 |     Let,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `If`
[INFO] [stdout]   --> src/lexer/lex_token.rs:61:5
[INFO] [stdout]    |
[INFO] [stdout] 61 |     If,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Else`
[INFO] [stdout]   --> src/lexer/lex_token.rs:62:5
[INFO] [stdout]    |
[INFO] [stdout] 62 |     Else,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `For`
[INFO] [stdout]   --> src/lexer/lex_token.rs:63:5
[INFO] [stdout]    |
[INFO] [stdout] 63 |     For,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Return`
[INFO] [stdout]   --> src/lexer/lex_token.rs:64:5
[INFO] [stdout]    |
[INFO] [stdout] 64 |     Return,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Identifire`
[INFO] [stdout]   --> src/lexer/lex_token.rs:66:5
[INFO] [stdout]    |
[INFO] [stdout] 66 |     Identifire(String),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `lex`
[INFO] [stdout]  --> src/lexer/mod.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn lex(code: &str) -> Option<Vec<LexToken>> {
[INFO] [stdout]   |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 48 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.65s
[INFO] running `Command { std: "docker" "inspect" "ad12ab6f18ad356d74141756759495ba1aadb11cecc2b4e05690f2264fb01b44", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ad12ab6f18ad356d74141756759495ba1aadb11cecc2b4e05690f2264fb01b44", kill_on_drop: false }`
[INFO] [stdout] ad12ab6f18ad356d74141756759495ba1aadb11cecc2b4e05690f2264fb01b44