[INFO] updating cached repository kriw/regex_vm
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/kriw/regex_vm
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/kriw/regex_vm" "work/ex/pr-60162/sources/master#a850a426491e14186af2250549bf41256b5938d2/gh/kriw/regex_vm"`
[INFO] [stderr] Cloning into 'work/ex/pr-60162/sources/master#a850a426491e14186af2250549bf41256b5938d2/gh/kriw/regex_vm'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/kriw/regex_vm" "work/ex/pr-60162/sources/try#06a150c7d11500b41499224f165e9de1de096768/gh/kriw/regex_vm"`
[INFO] [stderr] Cloning into 'work/ex/pr-60162/sources/try#06a150c7d11500b41499224f165e9de1de096768/gh/kriw/regex_vm'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 1d17f3a5917b967c4fcded7bd4200de23d708166
[INFO] sha for GitHub repo kriw/regex_vm: 1d17f3a5917b967c4fcded7bd4200de23d708166
[INFO] validating manifest of kriw/regex_vm on toolchain master#a850a426491e14186af2250549bf41256b5938d2
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+a850a426491e14186af2250549bf41256b5938d2-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of kriw/regex_vm on toolchain try#06a150c7d11500b41499224f165e9de1de096768
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+06a150c7d11500b41499224f165e9de1de096768-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing kriw/regex_vm
[INFO] finished frobbing kriw/regex_vm
[INFO] frobbed toml for kriw/regex_vm written to work/ex/pr-60162/sources/master#a850a426491e14186af2250549bf41256b5938d2/gh/kriw/regex_vm/Cargo.toml
[INFO] started frobbing kriw/regex_vm
[INFO] finished frobbing kriw/regex_vm
[INFO] frobbed toml for kriw/regex_vm written to work/ex/pr-60162/sources/try#06a150c7d11500b41499224f165e9de1de096768/gh/kriw/regex_vm/Cargo.toml
[INFO] crate kriw/regex_vm already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+a850a426491e14186af2250549bf41256b5938d2-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+06a150c7d11500b41499224f165e9de1de096768-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking kriw/regex_vm against master#a850a426491e14186af2250549bf41256b5938d2 for pr-60162
[INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-60162/worker-4/master#a850a426491e14186af2250549bf41256b5938d2:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-60162/sources/master#a850a426491e14186af2250549bf41256b5938d2/gh/kriw/regex_vm:/opt/crater/workdir:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/crater-raid/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" "+a850a426491e14186af2250549bf41256b5938d2-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] e365d06b00d26cc652bea30cf4175eebaad9b3602b3701ed7dc59a320372138c
[INFO] running `"docker" "start" "-a" "e365d06b00d26cc652bea30cf4175eebaad9b3602b3701ed7dc59a320372138c"`
[INFO] [stderr]     Checking regex_vm v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `parser::Ast`
[INFO] [stderr]  --> src/vm.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use parser::Ast;
[INFO] [stderr]   |     ^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::thread`
[INFO] [stderr]  --> src/vm_ir.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::thread;
[INFO] [stderr]   |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `parser::Ast`
[INFO] [stderr]  --> src/vm.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use parser::Ast;
[INFO] [stderr]   |     ^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::thread`
[INFO] [stderr]  --> src/vm_ir.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::thread;
[INFO] [stderr]   |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `pc`
[INFO] [stderr]   --> src/vm.rs:51:17
[INFO] [stderr]    |
[INFO] [stderr] 51 |         Ir::Jmp(pc, pc_to) => vec![(pc_to, State::Run)],
[INFO] [stderr]    |                 ^^ help: consider prefixing with an underscore: `_pc`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `pc`
[INFO] [stderr]   --> src/vm.rs:52:19
[INFO] [stderr]    |
[INFO] [stderr] 52 |         Ir::Split(pc, pc_to1, pc_to2) => vec![(pc_to1, State::Run), (pc_to2, State::Run)],
[INFO] [stderr]    |                   ^^ help: consider prefixing with an underscore: `_pc`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `pc`
[INFO] [stderr]   --> src/vm.rs:51:17
[INFO] [stderr]    |
[INFO] [stderr] 51 |         Ir::Jmp(pc, pc_to) => vec![(pc_to, State::Run)],
[INFO] [stderr]    |                 ^^ help: consider prefixing with an underscore: `_pc`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `pc`
[INFO] [stderr]   --> src/vm.rs:52:19
[INFO] [stderr]    |
[INFO] [stderr] 52 |         Ir::Split(pc, pc_to1, pc_to2) => vec![(pc_to1, State::Run), (pc_to2, State::Run)],
[INFO] [stderr]    |                   ^^ help: consider prefixing with an underscore: `_pc`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/vm.rs:12:28
[INFO] [stderr]    |
[INFO] [stderr] 12 | pub fn is_match(s: String, mut ir: Vec<Ir>) -> bool {
[INFO] [stderr]    |                            ----^^
[INFO] [stderr]    |                            |
[INFO] [stderr]    |                            help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/vm.rs:12:28
[INFO] [stderr]    |
[INFO] [stderr] 12 | pub fn is_match(s: String, mut ir: Vec<Ir>) -> bool {
[INFO] [stderr]    |                            ----^^
[INFO] [stderr]    |                            |
[INFO] [stderr]    |                            help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/vm_ir.rs:70:9
[INFO] [stderr]    |
[INFO] [stderr] 70 |     let mut code = compose(ast, &mut pc);
[INFO] [stderr]    |         ----^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Nop`
[INFO] [stderr]   --> src/vm_ir.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     Nop(PC),
[INFO] [stderr]    |     ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `dump`
[INFO] [stderr]   --> src/vm_ir.rs:76:1
[INFO] [stderr]    |
[INFO] [stderr] 76 | pub fn dump(irs: Vec<Ir>) {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/vm_ir.rs:70:9
[INFO] [stderr]    |
[INFO] [stderr] 70 |     let mut code = compose(ast, &mut pc);
[INFO] [stderr]    |         ----^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Nop`
[INFO] [stderr]   --> src/vm_ir.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     Nop(PC),
[INFO] [stderr]    |     ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `dump`
[INFO] [stderr]   --> src/vm_ir.rs:76:1
[INFO] [stderr]    |
[INFO] [stderr] 76 | pub fn dump(irs: Vec<Ir>) {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.45s
[INFO] running `"docker" "inspect" "e365d06b00d26cc652bea30cf4175eebaad9b3602b3701ed7dc59a320372138c"`
[INFO] running `"docker" "rm" "-f" "e365d06b00d26cc652bea30cf4175eebaad9b3602b3701ed7dc59a320372138c"`
[INFO] [stdout] e365d06b00d26cc652bea30cf4175eebaad9b3602b3701ed7dc59a320372138c