[INFO] cloning repository https://github.com/busyluo/roc
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/busyluo/roc" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbusyluo%2Froc", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbusyluo%2Froc'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d582ca067dc97572aa6a5f09624f52f368d40e93
[INFO] testing busyluo/roc against try#03a1ea71b075ab964b5278bc6e74cd6c52c36ee0 for pr-74409
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbusyluo%2Froc" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/busyluo/roc on toolchain 03a1ea71b075ab964b5278bc6e74cd6c52c36ee0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/busyluo/roc
[INFO] finished tweaking git repo https://github.com/busyluo/roc
[INFO] tweaked toml for git repo https://github.com/busyluo/roc written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/busyluo/roc already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded array-init v0.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a203577cb1940ce4bf5708f06fbe64ddea63769d87218ad70b61ce8adeaa2d92
[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" "a203577cb1940ce4bf5708f06fbe64ddea63769d87218ad70b61ce8adeaa2d92", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a203577cb1940ce4bf5708f06fbe64ddea63769d87218ad70b61ce8adeaa2d92", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a203577cb1940ce4bf5708f06fbe64ddea63769d87218ad70b61ce8adeaa2d92", kill_on_drop: false }`
[INFO] [stdout] a203577cb1940ce4bf5708f06fbe64ddea63769d87218ad70b61ce8adeaa2d92
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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=forbid" "-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@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 231f5f9c92f9a96dc8d87b86be46697def0722f124f89c9fcb55f2f226d91213
[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" "231f5f9c92f9a96dc8d87b86be46697def0722f124f89c9fcb55f2f226d91213", kill_on_drop: false }`
[INFO] [stderr]    Compiling array-init v0.1.0
[INFO] [stderr]    Compiling roc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variant is never constructed: `MultiCharSymbol`
[INFO] [stdout]   --> src/main.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 21 |     MultiCharSymbol,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/main.rs:15:8
[INFO] [stdout]    |
[INFO] [stdout] 15 | #[warn(dead_code)]
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/main.rs:47:8
[INFO] [stdout]    |
[INFO] [stdout] 47 |     fn new() -> DfaNode {
[INFO] [stdout]    |        ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `KwFn`
[INFO] [stdout]   --> src/main.rs:70:5
[INFO] [stdout]    |
[INFO] [stdout] 70 |     KwFn,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/main.rs:67:8
[INFO] [stdout]    |
[INFO] [stdout] 67 | #[warn(dead_code)]
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `KwInt`
[INFO] [stdout]   --> src/main.rs:71:5
[INFO] [stdout]    |
[INFO] [stdout] 71 |     KwInt,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `KwFloat`
[INFO] [stdout]   --> src/main.rs:72:5
[INFO] [stdout]    |
[INFO] [stdout] 72 |     KwFloat,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `KwLet`
[INFO] [stdout]   --> src/main.rs:73:5
[INFO] [stdout]    |
[INFO] [stdout] 73 |     KwLet,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Comma`
[INFO] [stdout]   --> src/main.rs:74:5
[INFO] [stdout]    |
[INFO] [stdout] 74 |     Comma,    // ,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Equal`
[INFO] [stdout]   --> src/main.rs:75:5
[INFO] [stdout]    |
[INFO] [stdout] 75 |     Equal,    // =
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Plus`
[INFO] [stdout]   --> src/main.rs:76:5
[INFO] [stdout]    |
[INFO] [stdout] 76 |     Plus,     // +
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Minus`
[INFO] [stdout]   --> src/main.rs:77:5
[INFO] [stdout]    |
[INFO] [stdout] 77 |     Minus,    // -
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `ParenL`
[INFO] [stdout]   --> src/main.rs:78:5
[INFO] [stdout]    |
[INFO] [stdout] 78 |     ParenL,    // (
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `ParenR`
[INFO] [stdout]   --> src/main.rs:79:5
[INFO] [stdout]    |
[INFO] [stdout] 79 |     ParenR,    // )
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `BraceL`
[INFO] [stdout]   --> src/main.rs:80:5
[INFO] [stdout]    |
[INFO] [stdout] 80 |     BraceL,    // {
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `BraceR`
[INFO] [stdout]   --> src/main.rs:81:5
[INFO] [stdout]    |
[INFO] [stdout] 81 |     BraceR,    // }
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `NextLine`
[INFO] [stdout]   --> src/main.rs:82:5
[INFO] [stdout]    |
[INFO] [stdout] 82 |     NextLine,  // \n
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `EqualEqual`
[INFO] [stdout]   --> src/main.rs:83:5
[INFO] [stdout]    |
[INFO] [stdout] 83 |     EqualEqual, // ==
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Gt`
[INFO] [stdout]   --> src/main.rs:84:5
[INFO] [stdout]    |
[INFO] [stdout] 84 |     Gt,         // >
[INFO] [stdout]    |     ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Lt`
[INFO] [stdout]   --> src/main.rs:85:5
[INFO] [stdout]    |
[INFO] [stdout] 85 |     Lt,         // <
[INFO] [stdout]    |     ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `GtEqual`
[INFO] [stdout]   --> src/main.rs:86:5
[INFO] [stdout]    |
[INFO] [stdout] 86 |     GtEqual,    // >=
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `LtEqual`
[INFO] [stdout]   --> src/main.rs:87:5
[INFO] [stdout]    |
[INFO] [stdout] 87 |     LtEqual,    // <=
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Star`
[INFO] [stdout]   --> src/main.rs:88:5
[INFO] [stdout]    |
[INFO] [stdout] 88 |     Star,       // *
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Slash`
[INFO] [stdout]   --> src/main.rs:89:5
[INFO] [stdout]    |
[INFO] [stdout] 89 |     Slash,      // /
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `PlusEqaul`
[INFO] [stdout]   --> src/main.rs:90:5
[INFO] [stdout]    |
[INFO] [stdout] 90 |     PlusEqaul,  // +=
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `MinusEqual`
[INFO] [stdout]   --> src/main.rs:91:5
[INFO] [stdout]    |
[INFO] [stdout] 91 |     MinusEqual, // -=
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `StarEqual`
[INFO] [stdout]   --> src/main.rs:92:5
[INFO] [stdout]    |
[INFO] [stdout] 92 |     StarEqual,  // *=
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `SlashEqual`
[INFO] [stdout]   --> src/main.rs:93:5
[INFO] [stdout]    |
[INFO] [stdout] 93 |     SlashEqual,  // /=
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `LitStr`
[INFO] [stdout]   --> src/main.rs:95:5
[INFO] [stdout]    |
[INFO] [stdout] 95 |     LitStr(String),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `LitFloat`
[INFO] [stdout]   --> src/main.rs:97:5
[INFO] [stdout]    |
[INFO] [stdout] 97 |     LitFloat(String, f64),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `to_str`
[INFO] [stdout]    --> src/main.rs:104:8
[INFO] [stdout]     |
[INFO] [stdout] 104 |     fn to_str(&self) -> &str{
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> src/main.rs:102:8
[INFO] [stdout]     |
[INFO] [stdout] 102 | #[warn(dead_code)]
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 29 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.30s
[INFO] running `Command { std: "docker" "inspect" "231f5f9c92f9a96dc8d87b86be46697def0722f124f89c9fcb55f2f226d91213", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "231f5f9c92f9a96dc8d87b86be46697def0722f124f89c9fcb55f2f226d91213", kill_on_drop: false }`
[INFO] [stdout] 231f5f9c92f9a96dc8d87b86be46697def0722f124f89c9fcb55f2f226d91213
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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=forbid" "-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@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1f08979541fb831d08efc78c2e6192bf8ca1956f67bce78116b2cf05614e4ef3
[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" "1f08979541fb831d08efc78c2e6192bf8ca1956f67bce78116b2cf05614e4ef3", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling roc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variant is never constructed: `MultiCharSymbol`
[INFO] [stdout]   --> src/main.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 21 |     MultiCharSymbol,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/main.rs:15:8
[INFO] [stdout]    |
[INFO] [stdout] 15 | #[warn(dead_code)]
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/main.rs:47:8
[INFO] [stdout]    |
[INFO] [stdout] 47 |     fn new() -> DfaNode {
[INFO] [stdout]    |        ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `KwFn`
[INFO] [stdout]   --> src/main.rs:70:5
[INFO] [stdout]    |
[INFO] [stdout] 70 |     KwFn,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/main.rs:67:8
[INFO] [stdout]    |
[INFO] [stdout] 67 | #[warn(dead_code)]
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `KwInt`
[INFO] [stdout]   --> src/main.rs:71:5
[INFO] [stdout]    |
[INFO] [stdout] 71 |     KwInt,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `KwFloat`
[INFO] [stdout]   --> src/main.rs:72:5
[INFO] [stdout]    |
[INFO] [stdout] 72 |     KwFloat,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `KwLet`
[INFO] [stdout]   --> src/main.rs:73:5
[INFO] [stdout]    |
[INFO] [stdout] 73 |     KwLet,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Comma`
[INFO] [stdout]   --> src/main.rs:74:5
[INFO] [stdout]    |
[INFO] [stdout] 74 |     Comma,    // ,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Equal`
[INFO] [stdout]   --> src/main.rs:75:5
[INFO] [stdout]    |
[INFO] [stdout] 75 |     Equal,    // =
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Plus`
[INFO] [stdout]   --> src/main.rs:76:5
[INFO] [stdout]    |
[INFO] [stdout] 76 |     Plus,     // +
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Minus`
[INFO] [stdout]   --> src/main.rs:77:5
[INFO] [stdout]    |
[INFO] [stdout] 77 |     Minus,    // -
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `ParenL`
[INFO] [stdout]   --> src/main.rs:78:5
[INFO] [stdout]    |
[INFO] [stdout] 78 |     ParenL,    // (
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `ParenR`
[INFO] [stdout]   --> src/main.rs:79:5
[INFO] [stdout]    |
[INFO] [stdout] 79 |     ParenR,    // )
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `BraceL`
[INFO] [stdout]   --> src/main.rs:80:5
[INFO] [stdout]    |
[INFO] [stdout] 80 |     BraceL,    // {
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `BraceR`
[INFO] [stdout]   --> src/main.rs:81:5
[INFO] [stdout]    |
[INFO] [stdout] 81 |     BraceR,    // }
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `NextLine`
[INFO] [stdout]   --> src/main.rs:82:5
[INFO] [stdout]    |
[INFO] [stdout] 82 |     NextLine,  // \n
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `EqualEqual`
[INFO] [stdout]   --> src/main.rs:83:5
[INFO] [stdout]    |
[INFO] [stdout] 83 |     EqualEqual, // ==
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Gt`
[INFO] [stdout]   --> src/main.rs:84:5
[INFO] [stdout]    |
[INFO] [stdout] 84 |     Gt,         // >
[INFO] [stdout]    |     ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Lt`
[INFO] [stdout]   --> src/main.rs:85:5
[INFO] [stdout]    |
[INFO] [stdout] 85 |     Lt,         // <
[INFO] [stdout]    |     ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `GtEqual`
[INFO] [stdout]   --> src/main.rs:86:5
[INFO] [stdout]    |
[INFO] [stdout] 86 |     GtEqual,    // >=
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `LtEqual`
[INFO] [stdout]   --> src/main.rs:87:5
[INFO] [stdout]    |
[INFO] [stdout] 87 |     LtEqual,    // <=
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Star`
[INFO] [stdout]   --> src/main.rs:88:5
[INFO] [stdout]    |
[INFO] [stdout] 88 |     Star,       // *
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Slash`
[INFO] [stdout]   --> src/main.rs:89:5
[INFO] [stdout]    |
[INFO] [stdout] 89 |     Slash,      // /
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `PlusEqaul`
[INFO] [stdout]   --> src/main.rs:90:5
[INFO] [stdout]    |
[INFO] [stdout] 90 |     PlusEqaul,  // +=
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `MinusEqual`
[INFO] [stdout]   --> src/main.rs:91:5
[INFO] [stdout]    |
[INFO] [stdout] 91 |     MinusEqual, // -=
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `StarEqual`
[INFO] [stdout]   --> src/main.rs:92:5
[INFO] [stdout]    |
[INFO] [stdout] 92 |     StarEqual,  // *=
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `SlashEqual`
[INFO] [stdout]   --> src/main.rs:93:5
[INFO] [stdout]    |
[INFO] [stdout] 93 |     SlashEqual,  // /=
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `LitStr`
[INFO] [stdout]   --> src/main.rs:95:5
[INFO] [stdout]    |
[INFO] [stdout] 95 |     LitStr(String),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `LitFloat`
[INFO] [stdout]   --> src/main.rs:97:5
[INFO] [stdout]    |
[INFO] [stdout] 97 |     LitFloat(String, f64),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `to_str`
[INFO] [stdout]    --> src/main.rs:104:8
[INFO] [stdout]     |
[INFO] [stdout] 104 |     fn to_str(&self) -> &str{
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> src/main.rs:102:8
[INFO] [stdout]     |
[INFO] [stdout] 102 | #[warn(dead_code)]
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 29 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.73s
[INFO] running `Command { std: "docker" "inspect" "1f08979541fb831d08efc78c2e6192bf8ca1956f67bce78116b2cf05614e4ef3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1f08979541fb831d08efc78c2e6192bf8ca1956f67bce78116b2cf05614e4ef3", kill_on_drop: false }`
[INFO] [stdout] 1f08979541fb831d08efc78c2e6192bf8ca1956f67bce78116b2cf05614e4ef3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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=forbid" "-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@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 69c76ed987a6c99d510fbf414a1ce1d3ad1e9fc362e9ec8ef4cc3a5cfbddc941
[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" "69c76ed987a6c99d510fbf414a1ce1d3ad1e9fc362e9ec8ef4cc3a5cfbddc941", kill_on_drop: false }`
[INFO] [stderr] warning: variant is never constructed: `MultiCharSymbol`
[INFO] [stderr]   --> src/main.rs:21:5
[INFO] [stderr]    |
[INFO] [stderr] 21 |     MultiCharSymbol,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr] note: the lint level is defined here
[INFO] [stderr]   --> src/main.rs:15:8
[INFO] [stderr]    |
[INFO] [stderr] 15 | #[warn(dead_code)]
[INFO] [stderr]    |        ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]   --> src/main.rs:47:8
[INFO] [stderr]    |
[INFO] [stderr] 47 |     fn new() -> DfaNode {
[INFO] [stderr]    |        ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `KwFn`
[INFO] [stderr]   --> src/main.rs:70:5
[INFO] [stderr]    |
[INFO] [stderr] 70 |     KwFn,
[INFO] [stderr]    |     ^^^^
[INFO] [stderr]    |
[INFO] [stderr] note: the lint level is defined here
[INFO] [stderr]   --> src/main.rs:67:8
[INFO] [stderr]    |
[INFO] [stderr] 67 | #[warn(dead_code)]
[INFO] [stderr]    |        ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `KwInt`
[INFO] [stderr]   --> src/main.rs:71:5
[INFO] [stderr]    |
[INFO] [stderr] 71 |     KwInt,
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `KwFloat`
[INFO] [stderr]   --> src/main.rs:72:5
[INFO] [stderr]    |
[INFO] [stderr] 72 |     KwFloat,
[INFO] [stderr]    |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `KwLet`
[INFO] [stderr]   --> src/main.rs:73:5
[INFO] [stderr]    |
[INFO] [stderr] 73 |     KwLet,
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Comma`
[INFO] [stderr]   --> src/main.rs:74:5
[INFO] [stderr]    |
[INFO] [stderr] 74 |     Comma,    // ,
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Equal`
[INFO] [stderr]   --> src/main.rs:75:5
[INFO] [stderr]    |
[INFO] [stderr] 75 |     Equal,    // =
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Plus`
[INFO] [stderr]   --> src/main.rs:76:5
[INFO] [stderr]    |
[INFO] [stderr] 76 |     Plus,     // +
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Minus`
[INFO] [stderr]   --> src/main.rs:77:5
[INFO] [stderr]    |
[INFO] [stderr] 77 |     Minus,    // -
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `ParenL`
[INFO] [stderr]   --> src/main.rs:78:5
[INFO] [stderr]    |
[INFO] [stderr] 78 |     ParenL,    // (
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `ParenR`
[INFO] [stderr]   --> src/main.rs:79:5
[INFO] [stderr]    |
[INFO] [stderr] 79 |     ParenR,    // )
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `BraceL`
[INFO] [stderr]   --> src/main.rs:80:5
[INFO] [stderr]    |
[INFO] [stderr] 80 |     BraceL,    // {
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `BraceR`
[INFO] [stderr]   --> src/main.rs:81:5
[INFO] [stderr]    |
[INFO] [stderr] 81 |     BraceR,    // }
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `NextLine`
[INFO] [stderr]   --> src/main.rs:82:5
[INFO] [stderr]    |
[INFO] [stderr] 82 |     NextLine,  // \n
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `EqualEqual`
[INFO] [stderr]   --> src/main.rs:83:5
[INFO] [stderr]    |
[INFO] [stderr] 83 |     EqualEqual, // ==
[INFO] [stderr]    |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Gt`
[INFO] [stderr]   --> src/main.rs:84:5
[INFO] [stderr]    |
[INFO] [stderr] 84 |     Gt,         // >
[INFO] [stderr]    |     ^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Lt`
[INFO] [stderr]   --> src/main.rs:85:5
[INFO] [stderr]    |
[INFO] [stderr] 85 |     Lt,         // <
[INFO] [stderr]    |     ^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `GtEqual`
[INFO] [stderr]   --> src/main.rs:86:5
[INFO] [stderr]    |
[INFO] [stderr] 86 |     GtEqual,    // >=
[INFO] [stderr]    |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `LtEqual`
[INFO] [stderr]   --> src/main.rs:87:5
[INFO] [stderr]    |
[INFO] [stderr] 87 |     LtEqual,    // <=
[INFO] [stderr]    |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Star`
[INFO] [stderr]   --> src/main.rs:88:5
[INFO] [stderr]    |
[INFO] [stderr] 88 |     Star,       // *
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Slash`
[INFO] [stderr]   --> src/main.rs:89:5
[INFO] [stderr]    |
[INFO] [stderr] 89 |     Slash,      // /
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `PlusEqaul`
[INFO] [stderr]   --> src/main.rs:90:5
[INFO] [stderr]    |
[INFO] [stderr] 90 |     PlusEqaul,  // +=
[INFO] [stderr]    |     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `MinusEqual`
[INFO] [stderr]   --> src/main.rs:91:5
[INFO] [stderr]    |
[INFO] [stderr] 91 |     MinusEqual, // -=
[INFO] [stderr]    |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `StarEqual`
[INFO] [stderr]   --> src/main.rs:92:5
[INFO] [stderr]    |
[INFO] [stderr] 92 |     StarEqual,  // *=
[INFO] [stderr]    |     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `SlashEqual`
[INFO] [stderr]   --> src/main.rs:93:5
[INFO] [stderr]    |
[INFO] [stderr] 93 |     SlashEqual,  // /=
[INFO] [stderr]    |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `LitStr`
[INFO] [stderr]   --> src/main.rs:95:5
[INFO] [stderr]    |
[INFO] [stderr] 95 |     LitStr(String),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `LitFloat`
[INFO] [stderr]   --> src/main.rs:97:5
[INFO] [stderr]    |
[INFO] [stderr] 97 |     LitFloat(String, f64),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `to_str`
[INFO] [stderr]    --> src/main.rs:104:8
[INFO] [stderr]     |
[INFO] [stderr] 104 |     fn to_str(&self) -> &str{
[INFO] [stderr]     |        ^^^^^^
[INFO] [stderr]     |
[INFO] [stderr] note: the lint level is defined here
[INFO] [stderr]    --> src/main.rs:102:8
[INFO] [stderr]     |
[INFO] [stderr] 102 | #[warn(dead_code)]
[INFO] [stderr]     |        ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 29 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/roc-170f7ce3af38d5cd
[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] running `Command { std: "docker" "inspect" "69c76ed987a6c99d510fbf414a1ce1d3ad1e9fc362e9ec8ef4cc3a5cfbddc941", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "69c76ed987a6c99d510fbf414a1ce1d3ad1e9fc362e9ec8ef4cc3a5cfbddc941", kill_on_drop: false }`
[INFO] [stdout] 69c76ed987a6c99d510fbf414a1ce1d3ad1e9fc362e9ec8ef4cc3a5cfbddc941