[INFO] cloning repository https://github.com/dvorakchen/reglex
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dvorakchen/reglex" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdvorakchen%2Freglex", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdvorakchen%2Freglex'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 221edc72dc3fdce690dde31a2fa77c52f93f4012
[INFO] checking dvorakchen/reglex against try#1779a8680dcd39c56ed600627cf6742ef07ed78c for pr-149045
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdvorakchen%2Freglex" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/dvorakchen/reglex
[INFO] finished tweaking git repo https://github.com/dvorakchen/reglex
[INFO] tweaked toml for git repo https://github.com/dvorakchen/reglex written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/dvorakchen/reglex on toolchain 1779a8680dcd39c56ed600627cf6742ef07ed78c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1779a8680dcd39c56ed600627cf6742ef07ed78c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/dvorakchen/reglex 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" "+1779a8680dcd39c56ed600627cf6742ef07ed78c" "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-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1779a8680dcd39c56ed600627cf6742ef07ed78c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] de7b7e9a8b457b05469e5bd23462bfdf85597b4d90106df1c85985896a5d4206
[INFO] running `Command { std: "docker" "start" "-a" "de7b7e9a8b457b05469e5bd23462bfdf85597b4d90106df1c85985896a5d4206", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "de7b7e9a8b457b05469e5bd23462bfdf85597b4d90106df1c85985896a5d4206", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "de7b7e9a8b457b05469e5bd23462bfdf85597b4d90106df1c85985896a5d4206", kill_on_drop: false }`
[INFO] [stdout] de7b7e9a8b457b05469e5bd23462bfdf85597b4d90106df1c85985896a5d4206
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1779a8680dcd39c56ed600627cf6742ef07ed78c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 51834ff41089411cbd868e74748d80870df63b7c6a05ce7eeea532acf0fcd386
[INFO] running `Command { std: "docker" "start" "-a" "51834ff41089411cbd868e74748d80870df63b7c6a05ce7eeea532acf0fcd386", kill_on_drop: false }`
[INFO] [stderr]     Checking reglex v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `HashMap`
[INFO] [stdout]  --> src/dfa.rs:3:19
[INFO] [stdout]   |
[INFO] [stdout] 3 |     collections::{HashMap, HashSet},
[INFO] [stdout]   |                   ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `HashMap`
[INFO] [stdout]  --> src/dfa.rs:3:19
[INFO] [stdout]   |
[INFO] [stdout] 3 |     collections::{HashMap, HashSet},
[INFO] [stdout]   |                   ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/dfa.rs:62:13
[INFO] [stdout]    |
[INFO] [stdout] 62 |         let mut status = value.get_start();
[INFO] [stdout]    |             ----^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/dfa.rs:65:13
[INFO] [stdout]    |
[INFO] [stdout] 65 |         let mut buf: Vec<DFAStatus> = vec![vec![status].into()];
[INFO] [stdout]    |             ----^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/dfa.rs:73:17
[INFO] [stdout]    |
[INFO] [stdout] 73 |             let mut next_set: Vec<Rc<RefCell<DFAStatusBox>>> = Vec::new();
[INFO] [stdout]    |                 ----^^^^^^^^
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `dfa`
[INFO] [stdout]   --> src/dfa.rs:61:13
[INFO] [stdout]    |
[INFO] [stdout] 61 |         let dfa = NFA::new();
[INFO] [stdout]    |             ^^^ help: if this is intentional, prefix it with an underscore: `_dfa`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `next_set`
[INFO] [stdout]   --> src/dfa.rs:73:17
[INFO] [stdout]    |
[INFO] [stdout] 73 |             let mut next_set: Vec<Rc<RefCell<DFAStatusBox>>> = Vec::new();
[INFO] [stdout]    |                 ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_next_set`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ta_set`
[INFO] [stdout]   --> src/dfa.rs:91:21
[INFO] [stdout]    |
[INFO] [stdout] 91 |                 let ta_set: Vec<_> = ta_set
[INFO] [stdout]    |                     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_ta_set`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/nfa.rs:420:13
[INFO] [stdout]     |
[INFO] [stdout] 420 |         let mut res = Vec::new();
[INFO] [stdout]     |             ----^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `next` is never read
[INFO] [stdout]   --> src/dfa.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | struct DFAStatus {
[INFO] [stdout]    |        --------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 18 |     next: Vec<(Box<dyn StatusTargetRule>, DFAStatusBox)>,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `start` is never read
[INFO] [stdout]   --> src/dfa.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub struct DFA {
[INFO] [stdout]    |            --- field in this struct
[INFO] [stdout] 22 |     start: DFAStatusBox,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `closure_t` is never used
[INFO] [stdout]    --> src/nfa.rs:456:8
[INFO] [stdout]     |
[INFO] [stdout] 343 | impl Status {
[INFO] [stdout]     | ----------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 456 |     fn closure_t(status_t: Vec<StatusBox>) -> Vec<StatusBox> {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/dfa.rs:62:13
[INFO] [stdout]    |
[INFO] [stdout] 62 |         let mut status = value.get_start();
[INFO] [stdout]    |             ----^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/dfa.rs:65:13
[INFO] [stdout]    |
[INFO] [stdout] 65 |         let mut buf: Vec<DFAStatus> = vec![vec![status].into()];
[INFO] [stdout]    |             ----^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/dfa.rs:73:17
[INFO] [stdout]    |
[INFO] [stdout] 73 |             let mut next_set: Vec<Rc<RefCell<DFAStatusBox>>> = Vec::new();
[INFO] [stdout]    |                 ----^^^^^^^^
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `dfa`
[INFO] [stdout]   --> src/dfa.rs:61:13
[INFO] [stdout]    |
[INFO] [stdout] 61 |         let dfa = NFA::new();
[INFO] [stdout]    |             ^^^ help: if this is intentional, prefix it with an underscore: `_dfa`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `next_set`
[INFO] [stdout]   --> src/dfa.rs:73:17
[INFO] [stdout]    |
[INFO] [stdout] 73 |             let mut next_set: Vec<Rc<RefCell<DFAStatusBox>>> = Vec::new();
[INFO] [stdout]    |                 ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_next_set`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ta_set`
[INFO] [stdout]   --> src/dfa.rs:91:21
[INFO] [stdout]    |
[INFO] [stdout] 91 |                 let ta_set: Vec<_> = ta_set
[INFO] [stdout]    |                     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_ta_set`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/nfa.rs:420:13
[INFO] [stdout]     |
[INFO] [stdout] 420 |         let mut res = Vec::new();
[INFO] [stdout]     |             ----^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `next` is never read
[INFO] [stdout]   --> src/dfa.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | struct DFAStatus {
[INFO] [stdout]    |        --------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 18 |     next: Vec<(Box<dyn StatusTargetRule>, DFAStatusBox)>,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `start` is never read
[INFO] [stdout]   --> src/dfa.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub struct DFA {
[INFO] [stdout]    |            --- field in this struct
[INFO] [stdout] 22 |     start: DFAStatusBox,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `closure_t` is never used
[INFO] [stdout]    --> src/nfa.rs:456:8
[INFO] [stdout]     |
[INFO] [stdout] 343 | impl Status {
[INFO] [stdout]     | ----------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 456 |     fn closure_t(status_t: Vec<StatusBox>) -> Vec<StatusBox> {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.23s
[INFO] running `Command { std: "docker" "inspect" "51834ff41089411cbd868e74748d80870df63b7c6a05ce7eeea532acf0fcd386", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "51834ff41089411cbd868e74748d80870df63b7c6a05ce7eeea532acf0fcd386", kill_on_drop: false }`
[INFO] [stdout] 51834ff41089411cbd868e74748d80870df63b7c6a05ce7eeea532acf0fcd386
