[INFO] cloning repository https://github.com/kmdiogo/lag-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kmdiogo/lag-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkmdiogo%2Flag-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkmdiogo%2Flag-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 63e88b66b562c7bd753bb9f5039664c9b5cdd33a
[INFO] checking kmdiogo/lag-rust against try#6db1a6a7ebb2ad243051f3ff949f987dd70cde2b+rustflags=-Dreturn-local-variable-ptr for pr-134218
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkmdiogo%2Flag-rust" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/kmdiogo/lag-rust on toolchain 6db1a6a7ebb2ad243051f3ff949f987dd70cde2b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6db1a6a7ebb2ad243051f3ff949f987dd70cde2b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/kmdiogo/lag-rust
[INFO] finished tweaking git repo https://github.com/kmdiogo/lag-rust
[INFO] tweaked toml for git repo https://github.com/kmdiogo/lag-rust written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/kmdiogo/lag-rust 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" "+6db1a6a7ebb2ad243051f3ff949f987dd70cde2b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+6db1a6a7ebb2ad243051f3ff949f987dd70cde2b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 069157722b5baa3ecc81e3d2c8e44184e13969f5e49c97ff637971a942ad76e0
[INFO] running `Command { std: "docker" "start" "-a" "069157722b5baa3ecc81e3d2c8e44184e13969f5e49c97ff637971a942ad76e0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "069157722b5baa3ecc81e3d2c8e44184e13969f5e49c97ff637971a942ad76e0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "069157722b5baa3ecc81e3d2c8e44184e13969f5e49c97ff637971a942ad76e0", kill_on_drop: false }`
[INFO] [stdout] 069157722b5baa3ecc81e3d2c8e44184e13969f5e49c97ff637971a942ad76e0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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 -Dreturn-local-variable-ptr" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+6db1a6a7ebb2ad243051f3ff949f987dd70cde2b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 88faa0c3cc5ede80d7e059b5ac8036b25408bb051eab0632565092e1eb24b7a2
[INFO] running `Command { std: "docker" "start" "-a" "88faa0c3cc5ede80d7e059b5ac8036b25408bb051eab0632565092e1eb24b7a2", kill_on_drop: false }`
[INFO] [stderr]     Checking either v1.9.0
[INFO] [stderr]     Checking itertools v0.12.0
[INFO] [stderr]     Checking lag-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::fs::File`
[INFO] [stdout]  --> src/main.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::fs::File;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io::BufReader`
[INFO] [stdout]  --> src/main.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::io::BufReader;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `core::panic`
[INFO] [stdout]  --> src/lexer.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use core::panic;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fs::File`
[INFO] [stdout]  --> src/main.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::fs::File;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io::BufReader`
[INFO] [stdout]  --> src/main.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::io::BufReader;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `core::panic`
[INFO] [stdout]  --> src/lexer.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use core::panic;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple variants are never constructed
[INFO] [stdout]   --> src/lexer.rs:8:5
[INFO] [stdout]    |
[INFO] [stdout] 7  | enum Token {
[INFO] [stdout]    |      ----- variants in this enum
[INFO] [stdout] 8  |     Class,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 9  |     Token,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 10 |     Id,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 11 |     Ignore,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 12 |     BracketOpen,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 13 |     BracketOpenNegate,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 14 |     BracketClose,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 15 |     DashBracketClose,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 16 |     ParenOpen,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 17 |     ParenClose,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 18 |     Pipe,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 19 |     Character,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 20 |     Dash,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 21 |     Star,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 22 |     Plus,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 23 |     Question,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 24 |     ForwardSlash,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Token` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `input`
[INFO] [stdout]    --> src/lexer.rs:299:13
[INFO] [stdout]     |
[INFO] [stdout] 299 |         let input = "class alpha [a-zA-z]
[INFO] [stdout]     |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lexer.rs:307:13
[INFO] [stdout]     |
[INFO] [stdout] 307 |         let mut lexer = Lexer::from_string(input2);
[INFO] [stdout]     |             ----^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `State` is never used
[INFO] [stdout]   --> src/lexer.rs:38:6
[INFO] [stdout]    |
[INFO] [stdout] 38 | enum State {
[INFO] [stdout]    |      ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Transition` is never constructed
[INFO] [stdout]   --> src/lexer.rs:49:8
[INFO] [stdout]    |
[INFO] [stdout] 49 | struct Transition {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Lexer` is never constructed
[INFO] [stdout]   --> src/lexer.rs:54:8
[INFO] [stdout]    |
[INFO] [stdout] 54 | struct Lexer {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `evaluate_escape_characters` is never used
[INFO] [stdout]   --> src/lexer.rs:62:4
[INFO] [stdout]    |
[INFO] [stdout] 62 | fn evaluate_escape_characters(lexeme: &String) -> String {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `from_string` and `create_token_entry` are never used
[INFO] [stdout]   --> src/lexer.rs:74:12
[INFO] [stdout]    |
[INFO] [stdout] 73 | impl Lexer {
[INFO] [stdout]    | ---------- associated items in this implementation
[INFO] [stdout] 74 |     pub fn from_string(input: &str) -> Self {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 83 |     fn create_token_entry(&self, token: Token, lexeme: &String) -> TokenEntry {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.65s
[INFO] running `Command { std: "docker" "inspect" "88faa0c3cc5ede80d7e059b5ac8036b25408bb051eab0632565092e1eb24b7a2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "88faa0c3cc5ede80d7e059b5ac8036b25408bb051eab0632565092e1eb24b7a2", kill_on_drop: false }`
[INFO] [stdout] 88faa0c3cc5ede80d7e059b5ac8036b25408bb051eab0632565092e1eb24b7a2