Dec 19 14:01:36.459 INFO checking kriw/regex_vm against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 14:01:36.459 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-0/master#d99a320cba42f661aebfa1293b7b2ec3603dda75:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/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" "+d99a320cba42f661aebfa1293b7b2ec3603dda75-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 14:01:36.884 INFO [stdout] 152ca3a9d04f312ce86006a0b99f5d8e4a086a5af972701b84ebc9553f98db61
Dec 19 14:01:36.890 INFO running `"docker" "start" "-a" "152ca3a9d04f312ce86006a0b99f5d8e4a086a5af972701b84ebc9553f98db61"`
Dec 19 14:01:38.462 INFO [stderr]     Checking regex_vm v0.1.0 (/opt/crater/workdir)
Dec 19 14:01:38.777 INFO [stderr] warning: unused import: `parser::Ast`
Dec 19 14:01:38.777 INFO [stderr]  --> src/vm.rs:3:5
Dec 19 14:01:38.777 INFO [stderr]   |
Dec 19 14:01:38.777 INFO [stderr] 3 | use parser::Ast;
Dec 19 14:01:38.777 INFO [stderr]   |     ^^^^^^^^^^^
Dec 19 14:01:38.777 INFO [stderr]   |
Dec 19 14:01:38.779 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 19 14:01:38.779 INFO [stderr] 
Dec 19 14:01:38.779 INFO [stderr] warning: unused import: `std::thread`
Dec 19 14:01:38.779 INFO [stderr]  --> src/vm_ir.rs:1:5
Dec 19 14:01:38.779 INFO [stderr]   |
Dec 19 14:01:38.779 INFO [stderr] 1 | use std::thread;
Dec 19 14:01:38.779 INFO [stderr]   |     ^^^^^^^^^^^
Dec 19 14:01:38.779 INFO [stderr] 
Dec 19 14:01:38.888 INFO [stderr] warning: unused variable: `pc`
Dec 19 14:01:38.888 INFO [stderr]   --> src/vm.rs:51:17
Dec 19 14:01:38.888 INFO [stderr]    |
Dec 19 14:01:38.888 INFO [stderr] 51 |         Ir::Jmp(pc, pc_to) => vec![(pc_to, State::Run)],
Dec 19 14:01:38.890 INFO [stderr]    |                 ^^ help: consider using `_pc` instead
Dec 19 14:01:38.890 INFO [stderr]    |
Dec 19 14:01:38.890 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 19 14:01:38.890 INFO [stderr] 
Dec 19 14:01:38.890 INFO [stderr] warning: unused variable: `pc`
Dec 19 14:01:38.890 INFO [stderr]   --> src/vm.rs:52:19
Dec 19 14:01:38.890 INFO [stderr]    |
Dec 19 14:01:38.890 INFO [stderr] 52 |         Ir::Split(pc, pc_to1, pc_to2) => vec![(pc_to1, State::Run), (pc_to2, State::Run)],
Dec 19 14:01:38.890 INFO [stderr]    |                   ^^ help: consider using `_pc` instead
Dec 19 14:01:38.890 INFO [stderr] 
Dec 19 14:01:38.908 INFO [stderr] warning: variable does not need to be mutable
Dec 19 14:01:38.908 INFO [stderr]   --> src/vm.rs:12:28
Dec 19 14:01:38.908 INFO [stderr]    |
Dec 19 14:01:38.908 INFO [stderr] 12 | pub fn is_match(s: String, mut ir: Vec<Ir>) -> bool {
Dec 19 14:01:38.908 INFO [stderr]    |                            ----^^
Dec 19 14:01:38.908 INFO [stderr]    |                            |
Dec 19 14:01:38.908 INFO [stderr]    |                            help: remove this `mut`
Dec 19 14:01:38.908 INFO [stderr]    |
Dec 19 14:01:38.908 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 19 14:01:38.908 INFO [stderr] 
Dec 19 14:01:38.922 INFO [stderr] warning: unused import: `parser::Ast`
Dec 19 14:01:38.922 INFO [stderr]  --> src/vm.rs:3:5
Dec 19 14:01:38.922 INFO [stderr]   |
Dec 19 14:01:38.922 INFO [stderr] 3 | use parser::Ast;
Dec 19 14:01:38.922 INFO [stderr]   |     ^^^^^^^^^^^
Dec 19 14:01:38.922 INFO [stderr]   |
Dec 19 14:01:38.922 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 19 14:01:38.922 INFO [stderr] 
Dec 19 14:01:38.922 INFO [stderr] warning: unused import: `std::thread`
Dec 19 14:01:38.922 INFO [stderr]  --> src/vm_ir.rs:1:5
Dec 19 14:01:38.922 INFO [stderr]   |
Dec 19 14:01:38.922 INFO [stderr] 1 | use std::thread;
Dec 19 14:01:38.922 INFO [stderr]   |     ^^^^^^^^^^^
Dec 19 14:01:38.922 INFO [stderr] 
Dec 19 14:01:38.922 INFO [stderr] warning: variable does not need to be mutable
Dec 19 14:01:38.922 INFO [stderr]   --> src/vm_ir.rs:70:9
Dec 19 14:01:38.922 INFO [stderr]    |
Dec 19 14:01:38.922 INFO [stderr] 70 |     let mut code = compose(ast, &mut pc);
Dec 19 14:01:38.922 INFO [stderr]    |         ----^^^^
Dec 19 14:01:38.922 INFO [stderr]    |         |
Dec 19 14:01:38.922 INFO [stderr]    |         help: remove this `mut`
Dec 19 14:01:38.922 INFO [stderr] 
Dec 19 14:01:38.924 INFO [stderr] warning: variant is never constructed: `Nop`
Dec 19 14:01:38.924 INFO [stderr]   --> src/vm_ir.rs:10:5
Dec 19 14:01:38.924 INFO [stderr]    |
Dec 19 14:01:38.924 INFO [stderr] 10 |     Nop(PC),
Dec 19 14:01:38.924 INFO [stderr]    |     ^^^^^^^
Dec 19 14:01:38.924 INFO [stderr]    |
Dec 19 14:01:38.924 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 19 14:01:38.924 INFO [stderr] 
Dec 19 14:01:38.924 INFO [stderr] warning: function is never used: `dump`
Dec 19 14:01:38.924 INFO [stderr]   --> src/vm_ir.rs:76:1
Dec 19 14:01:38.924 INFO [stderr]    |
Dec 19 14:01:38.924 INFO [stderr] 76 | pub fn dump(irs: Vec<Ir>) {
Dec 19 14:01:38.924 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 14:01:38.924 INFO [stderr] 
Dec 19 14:01:39.156 INFO [stderr] warning: unused variable: `pc`
Dec 19 14:01:39.156 INFO [stderr]   --> src/vm.rs:51:17
Dec 19 14:01:39.156 INFO [stderr]    |
Dec 19 14:01:39.156 INFO [stderr] 51 |         Ir::Jmp(pc, pc_to) => vec![(pc_to, State::Run)],
Dec 19 14:01:39.156 INFO [stderr]    |                 ^^ help: consider using `_pc` instead
Dec 19 14:01:39.156 INFO [stderr]    |
Dec 19 14:01:39.156 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 19 14:01:39.156 INFO [stderr] 
Dec 19 14:01:39.156 INFO [stderr] warning: unused variable: `pc`
Dec 19 14:01:39.156 INFO [stderr]   --> src/vm.rs:52:19
Dec 19 14:01:39.156 INFO [stderr]    |
Dec 19 14:01:39.156 INFO [stderr] 52 |         Ir::Split(pc, pc_to1, pc_to2) => vec![(pc_to1, State::Run), (pc_to2, State::Run)],
Dec 19 14:01:39.156 INFO [stderr]    |                   ^^ help: consider using `_pc` instead
Dec 19 14:01:39.156 INFO [stderr] 
Dec 19 14:01:39.164 INFO [stderr] warning: variable does not need to be mutable
Dec 19 14:01:39.164 INFO [stderr]   --> src/vm.rs:12:28
Dec 19 14:01:39.164 INFO [stderr]    |
Dec 19 14:01:39.164 INFO [stderr] 12 | pub fn is_match(s: String, mut ir: Vec<Ir>) -> bool {
Dec 19 14:01:39.164 INFO [stderr]    |                            ----^^
Dec 19 14:01:39.164 INFO [stderr]    |                            |
Dec 19 14:01:39.164 INFO [stderr]    |                            help: remove this `mut`
Dec 19 14:01:39.164 INFO [stderr]    |
Dec 19 14:01:39.164 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 19 14:01:39.164 INFO [stderr] 
Dec 19 14:01:39.182 INFO [stderr] warning: variable does not need to be mutable
Dec 19 14:01:39.182 INFO [stderr]   --> src/vm_ir.rs:70:9
Dec 19 14:01:39.182 INFO [stderr]    |
Dec 19 14:01:39.182 INFO [stderr] 70 |     let mut code = compose(ast, &mut pc);
Dec 19 14:01:39.182 INFO [stderr]    |         ----^^^^
Dec 19 14:01:39.182 INFO [stderr]    |         |
Dec 19 14:01:39.182 INFO [stderr]    |         help: remove this `mut`
Dec 19 14:01:39.182 INFO [stderr] 
Dec 19 14:01:39.184 INFO [stderr] warning: variant is never constructed: `Nop`
Dec 19 14:01:39.184 INFO [stderr]   --> src/vm_ir.rs:10:5
Dec 19 14:01:39.184 INFO [stderr]    |
Dec 19 14:01:39.184 INFO [stderr] 10 |     Nop(PC),
Dec 19 14:01:39.184 INFO [stderr]    |     ^^^^^^^
Dec 19 14:01:39.184 INFO [stderr]    |
Dec 19 14:01:39.184 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 19 14:01:39.184 INFO [stderr] 
Dec 19 14:01:39.184 INFO [stderr] warning: function is never used: `dump`
Dec 19 14:01:39.184 INFO [stderr]   --> src/vm_ir.rs:76:1
Dec 19 14:01:39.184 INFO [stderr]    |
Dec 19 14:01:39.184 INFO [stderr] 76 | pub fn dump(irs: Vec<Ir>) {
Dec 19 14:01:39.184 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 14:01:39.184 INFO [stderr] 
Dec 19 14:01:39.217 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.77s
Dec 19 14:01:40.007 INFO running `"docker" "inspect" "152ca3a9d04f312ce86006a0b99f5d8e4a086a5af972701b84ebc9553f98db61"`
Dec 19 14:01:40.362 INFO running `"docker" "rm" "-f" "152ca3a9d04f312ce86006a0b99f5d8e4a086a5af972701b84ebc9553f98db61"`
Dec 19 14:01:40.736 INFO [stdout] 152ca3a9d04f312ce86006a0b99f5d8e4a086a5af972701b84ebc9553f98db61