[INFO] cloning repository https://github.com/egli/regexp-dragon
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/egli/regexp-dragon" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fegli%2Fregexp-dragon", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fegli%2Fregexp-dragon'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5155bcf71845641f354fb6a5b7d8f8470a6b9ffd
[INFO] checking egli/regexp-dragon against try#ed606620234c6b50f2414162c4bbabd5f4a925f3 for pr-147995
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fegli%2Fregexp-dragon" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/egli/regexp-dragon
[INFO] finished tweaking git repo https://github.com/egli/regexp-dragon
[INFO] tweaked toml for git repo https://github.com/egli/regexp-dragon written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/egli/regexp-dragon on toolchain ed606620234c6b50f2414162c4bbabd5f4a925f3
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ed606620234c6b50f2414162c4bbabd5f4a925f3" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/egli/regexp-dragon 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" "+ed606620234c6b50f2414162c4bbabd5f4a925f3" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ed606620234c6b50f2414162c4bbabd5f4a925f3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4f6f3e87e7fd4d3b3598cccda116dfe3b945c85b8cd86ed32d422a85a5dd3a08
[INFO] running `Command { std: "docker" "start" "-a" "4f6f3e87e7fd4d3b3598cccda116dfe3b945c85b8cd86ed32d422a85a5dd3a08", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4f6f3e87e7fd4d3b3598cccda116dfe3b945c85b8cd86ed32d422a85a5dd3a08", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4f6f3e87e7fd4d3b3598cccda116dfe3b945c85b8cd86ed32d422a85a5dd3a08", kill_on_drop: false }`
[INFO] [stdout] 4f6f3e87e7fd4d3b3598cccda116dfe3b945c85b8cd86ed32d422a85a5dd3a08
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ed606620234c6b50f2414162c4bbabd5f4a925f3" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f1a39848fae4b9710dccf525afadfbb7ebda5ea98125e8a394c2405f224bf17f
[INFO] running `Command { std: "docker" "start" "-a" "f1a39848fae4b9710dccf525afadfbb7ebda5ea98125e8a394c2405f224bf17f", kill_on_drop: false }`
[INFO] [stderr]     Checking dragon-regexp v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: multiple variants are never constructed
[INFO] [stdout]   --> src/main.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 25 | enum Boundary {
[INFO] [stdout]    |      -------- variants in this enum
[INFO] [stdout] 26 |     Word,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 27 |     NotWord,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 28 |     Number,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 29 |     NumberWord,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 30 |     WordNumber,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 31 |     PrePattern,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 32 |     None,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Boundary` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Start`, `End`, and `Epsilon` are never constructed
[INFO] [stdout]   --> src/main.rs:40:5
[INFO] [stdout]    |
[INFO] [stdout] 37 | enum Transition {
[INFO] [stdout]    |      ---------- variants in this enum
[INFO] [stdout] ...
[INFO] [stdout] 40 |     Start(Boundary),
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 41 |     End(Boundary),
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 42 |     Epsilon,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Transition` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Any`, `ZeroOrMore`, `Optional`, and `Either` are never constructed
[INFO] [stdout]   --> src/main.rs:74:5
[INFO] [stdout]    |
[INFO] [stdout] 71 | enum AST {
[INFO] [stdout]    |      --- variants in this enum
[INFO] [stdout] ...
[INFO] [stdout] 74 |     Any,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 75 |     Concat(Box<AST>, Box<AST>),
[INFO] [stdout] 76 |     ZeroOrMore(Box<AST>),
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 77 |     Optional(Box<AST>),
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 78 |     OneOrMore(Box<AST>),
[INFO] [stdout] 79 |     Either(Box<AST>, Box<AST>),
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `epsilon_reachable_bfs` is never used
[INFO] [stdout]    --> src/main.rs:245:8
[INFO] [stdout]     |
[INFO] [stdout]  82 | impl NFA {
[INFO] [stdout]     | -------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 245 |     fn epsilon_reachable_bfs(&self, state: StateId) -> HashSet<StateId> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple variants are never constructed
[INFO] [stdout]   --> src/main.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 25 | enum Boundary {
[INFO] [stdout]    |      -------- variants in this enum
[INFO] [stdout] 26 |     Word,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 27 |     NotWord,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 28 |     Number,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 29 |     NumberWord,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 30 |     WordNumber,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 31 |     PrePattern,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 32 |     None,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Boundary` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Start`, `End`, and `Epsilon` are never constructed
[INFO] [stdout]   --> src/main.rs:40:5
[INFO] [stdout]    |
[INFO] [stdout] 37 | enum Transition {
[INFO] [stdout]    |      ---------- variants in this enum
[INFO] [stdout] ...
[INFO] [stdout] 40 |     Start(Boundary),
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 41 |     End(Boundary),
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 42 |     Epsilon,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Transition` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `epsilon_reachable_bfs` is never used
[INFO] [stdout]    --> src/main.rs:245:8
[INFO] [stdout]     |
[INFO] [stdout]  82 | impl NFA {
[INFO] [stdout]     | -------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 245 |     fn epsilon_reachable_bfs(&self, state: StateId) -> HashSet<StateId> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.11s
[INFO] running `Command { std: "docker" "inspect" "f1a39848fae4b9710dccf525afadfbb7ebda5ea98125e8a394c2405f224bf17f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f1a39848fae4b9710dccf525afadfbb7ebda5ea98125e8a394c2405f224bf17f", kill_on_drop: false }`
[INFO] [stdout] f1a39848fae4b9710dccf525afadfbb7ebda5ea98125e8a394c2405f224bf17f
