Dec 17 21:06:14.910 INFO checking kriw/regex_vm against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 17 21:06:14.910 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-5/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/gh/kriw/regex_vm:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+96d1334e567237b1507cd277938e7ae2de75ff51-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 17 21:06:15.333 INFO [stdout] 5bcec1aeb9ad0885eeefbf5c0684627a1f7f29659f65c345a1ca7c6cb919c2e3
Dec 17 21:06:15.336 INFO running `"docker" "start" "-a" "5bcec1aeb9ad0885eeefbf5c0684627a1f7f29659f65c345a1ca7c6cb919c2e3"`
Dec 17 21:06:17.242 INFO [stderr]     Checking regex_vm v0.1.0 (/opt/crater/workdir)
Dec 17 21:06:17.512 INFO [stderr] warning: unused import: `parser::Ast`
Dec 17 21:06:17.512 INFO [stderr]  --> src/vm.rs:3:5
Dec 17 21:06:17.512 INFO [stderr]   |
Dec 17 21:06:17.512 INFO [stderr] 3 | use parser::Ast;
Dec 17 21:06:17.513 INFO [stderr]   |     ^^^^^^^^^^^
Dec 17 21:06:17.513 INFO [stderr]   |
Dec 17 21:06:17.513 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 17 21:06:17.513 INFO [stderr] 
Dec 17 21:06:17.513 INFO [stderr] warning: unused import: `std::thread`
Dec 17 21:06:17.513 INFO [stderr]  --> src/vm_ir.rs:1:5
Dec 17 21:06:17.513 INFO [stderr]   |
Dec 17 21:06:17.513 INFO [stderr] 1 | use std::thread;
Dec 17 21:06:17.513 INFO [stderr]   |     ^^^^^^^^^^^
Dec 17 21:06:17.513 INFO [stderr] 
Dec 17 21:06:17.544 INFO [stderr] warning: unused import: `parser::Ast`
Dec 17 21:06:17.544 INFO [stderr]  --> src/vm.rs:3:5
Dec 17 21:06:17.544 INFO [stderr]   |
Dec 17 21:06:17.544 INFO [stderr] 3 | use parser::Ast;
Dec 17 21:06:17.544 INFO [stderr]   |     ^^^^^^^^^^^
Dec 17 21:06:17.544 INFO [stderr]   |
Dec 17 21:06:17.544 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 17 21:06:17.544 INFO [stderr] 
Dec 17 21:06:17.544 INFO [stderr] warning: unused import: `std::thread`
Dec 17 21:06:17.544 INFO [stderr]  --> src/vm_ir.rs:1:5
Dec 17 21:06:17.544 INFO [stderr]   |
Dec 17 21:06:17.544 INFO [stderr] 1 | use std::thread;
Dec 17 21:06:17.544 INFO [stderr]   |     ^^^^^^^^^^^
Dec 17 21:06:17.544 INFO [stderr] 
Dec 17 21:06:17.656 INFO [stderr] warning: unused variable: `pc`
Dec 17 21:06:17.656 INFO [stderr]   --> src/vm.rs:51:17
Dec 17 21:06:17.656 INFO [stderr]    |
Dec 17 21:06:17.656 INFO [stderr] 51 |         Ir::Jmp(pc, pc_to) => vec![(pc_to, State::Run)],
Dec 17 21:06:17.656 INFO [stderr]    |                 ^^ help: consider using `_pc` instead
Dec 17 21:06:17.656 INFO [stderr]    |
Dec 17 21:06:17.656 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 17 21:06:17.656 INFO [stderr] 
Dec 17 21:06:17.656 INFO [stderr] warning: unused variable: `pc`
Dec 17 21:06:17.656 INFO [stderr]   --> src/vm.rs:52:19
Dec 17 21:06:17.656 INFO [stderr]    |
Dec 17 21:06:17.656 INFO [stderr] 52 |         Ir::Split(pc, pc_to1, pc_to2) => vec![(pc_to1, State::Run), (pc_to2, State::Run)],
Dec 17 21:06:17.656 INFO [stderr]    |                   ^^ help: consider using `_pc` instead
Dec 17 21:06:17.656 INFO [stderr] 
Dec 17 21:06:17.680 INFO [stderr] warning: variable does not need to be mutable
Dec 17 21:06:17.680 INFO [stderr]   --> src/vm.rs:12:28
Dec 17 21:06:17.680 INFO [stderr]    |
Dec 17 21:06:17.680 INFO [stderr] 12 | pub fn is_match(s: String, mut ir: Vec<Ir>) -> bool {
Dec 17 21:06:17.680 INFO [stderr]    |                            ----^^
Dec 17 21:06:17.680 INFO [stderr]    |                            |
Dec 17 21:06:17.680 INFO [stderr]    |                            help: remove this `mut`
Dec 17 21:06:17.680 INFO [stderr]    |
Dec 17 21:06:17.680 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 17 21:06:17.680 INFO [stderr] 
Dec 17 21:06:17.680 INFO [stderr] warning: unused variable: `pc`
Dec 17 21:06:17.680 INFO [stderr]   --> src/vm.rs:51:17
Dec 17 21:06:17.680 INFO [stderr]    |
Dec 17 21:06:17.680 INFO [stderr] 51 |         Ir::Jmp(pc, pc_to) => vec![(pc_to, State::Run)],
Dec 17 21:06:17.680 INFO [stderr]    |                 ^^ help: consider using `_pc` instead
Dec 17 21:06:17.680 INFO [stderr]    |
Dec 17 21:06:17.680 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 17 21:06:17.680 INFO [stderr] 
Dec 17 21:06:17.680 INFO [stderr] warning: unused variable: `pc`
Dec 17 21:06:17.680 INFO [stderr]   --> src/vm.rs:52:19
Dec 17 21:06:17.680 INFO [stderr]    |
Dec 17 21:06:17.681 INFO [stderr] 52 |         Ir::Split(pc, pc_to1, pc_to2) => vec![(pc_to1, State::Run), (pc_to2, State::Run)],
Dec 17 21:06:17.681 INFO [stderr]    |                   ^^ help: consider using `_pc` instead
Dec 17 21:06:17.681 INFO [stderr] 
Dec 17 21:06:17.692 INFO [stderr] warning: variable does not need to be mutable
Dec 17 21:06:17.692 INFO [stderr]   --> src/vm_ir.rs:70:9
Dec 17 21:06:17.692 INFO [stderr]    |
Dec 17 21:06:17.692 INFO [stderr] 70 |     let mut code = compose(ast, &mut pc);
Dec 17 21:06:17.692 INFO [stderr]    |         ----^^^^
Dec 17 21:06:17.692 INFO [stderr]    |         |
Dec 17 21:06:17.692 INFO [stderr]    |         help: remove this `mut`
Dec 17 21:06:17.692 INFO [stderr] 
Dec 17 21:06:17.693 INFO [stderr] warning: variant is never constructed: `Nop`
Dec 17 21:06:17.693 INFO [stderr]   --> src/vm_ir.rs:10:5
Dec 17 21:06:17.693 INFO [stderr]    |
Dec 17 21:06:17.693 INFO [stderr] 10 |     Nop(PC),
Dec 17 21:06:17.693 INFO [stderr]    |     ^^^^^^^
Dec 17 21:06:17.693 INFO [stderr]    |
Dec 17 21:06:17.693 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 17 21:06:17.693 INFO [stderr] 
Dec 17 21:06:17.693 INFO [stderr] warning: function is never used: `dump`
Dec 17 21:06:17.693 INFO [stderr]   --> src/vm_ir.rs:76:1
Dec 17 21:06:17.693 INFO [stderr]    |
Dec 17 21:06:17.693 INFO [stderr] 76 | pub fn dump(irs: Vec<Ir>) {
Dec 17 21:06:17.693 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 21:06:17.693 INFO [stderr] 
Dec 17 21:06:17.708 INFO [stderr] warning: variable does not need to be mutable
Dec 17 21:06:17.708 INFO [stderr]   --> src/vm.rs:12:28
Dec 17 21:06:17.708 INFO [stderr]    |
Dec 17 21:06:17.708 INFO [stderr] 12 | pub fn is_match(s: String, mut ir: Vec<Ir>) -> bool {
Dec 17 21:06:17.708 INFO [stderr]    |                            ----^^
Dec 17 21:06:17.708 INFO [stderr]    |                            |
Dec 17 21:06:17.708 INFO [stderr]    |                            help: remove this `mut`
Dec 17 21:06:17.708 INFO [stderr]    |
Dec 17 21:06:17.708 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 17 21:06:17.708 INFO [stderr] 
Dec 17 21:06:17.716 INFO [stderr] warning: variable does not need to be mutable
Dec 17 21:06:17.716 INFO [stderr]   --> src/vm_ir.rs:70:9
Dec 17 21:06:17.716 INFO [stderr]    |
Dec 17 21:06:17.716 INFO [stderr] 70 |     let mut code = compose(ast, &mut pc);
Dec 17 21:06:17.716 INFO [stderr]    |         ----^^^^
Dec 17 21:06:17.716 INFO [stderr]    |         |
Dec 17 21:06:17.716 INFO [stderr]    |         help: remove this `mut`
Dec 17 21:06:17.716 INFO [stderr] 
Dec 17 21:06:17.716 INFO [stderr] warning: variant is never constructed: `Nop`
Dec 17 21:06:17.716 INFO [stderr]   --> src/vm_ir.rs:10:5
Dec 17 21:06:17.716 INFO [stderr]    |
Dec 17 21:06:17.716 INFO [stderr] 10 |     Nop(PC),
Dec 17 21:06:17.716 INFO [stderr]    |     ^^^^^^^
Dec 17 21:06:17.716 INFO [stderr]    |
Dec 17 21:06:17.716 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 17 21:06:17.716 INFO [stderr] 
Dec 17 21:06:17.716 INFO [stderr] warning: function is never used: `dump`
Dec 17 21:06:17.716 INFO [stderr]   --> src/vm_ir.rs:76:1
Dec 17 21:06:17.716 INFO [stderr]    |
Dec 17 21:06:17.716 INFO [stderr] 76 | pub fn dump(irs: Vec<Ir>) {
Dec 17 21:06:17.716 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 21:06:17.716 INFO [stderr] 
Dec 17 21:06:17.776 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.56s
Dec 17 21:06:18.195 INFO running `"docker" "inspect" "5bcec1aeb9ad0885eeefbf5c0684627a1f7f29659f65c345a1ca7c6cb919c2e3"`
Dec 17 21:06:18.394 INFO running `"docker" "rm" "-f" "5bcec1aeb9ad0885eeefbf5c0684627a1f7f29659f65c345a1ca7c6cb919c2e3"`
Dec 17 21:06:18.540 INFO [stdout] 5bcec1aeb9ad0885eeefbf5c0684627a1f7f29659f65c345a1ca7c6cb919c2e3