Oct 12 18:43:05.783 INFO checking kriw/regex_vm against try#4021bd0b3c5815b087d6db10ce461e7e4854ade7 for pr-54977
Oct 12 18:43:05.784 INFO running `"docker" "create" "-v" "/mnt/big/crater/./work/local/target-dirs/pr-54977/worker-5/try#4021bd0b3c5815b087d6db10ce461e7e4854ade7:/target:rw,Z" "-v" "/mnt/big/crater/./work/local/test-source/worker-5/pr-54977/try#4021bd0b3c5815b087d6db10ce461e7e4854ade7:/source:ro,Z" "-v" "/mnt/big/crater/./work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/./work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +4021bd0b3c5815b087d6db10ce461e7e4854ade7-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Oct 12 18:43:06.344 INFO blam! 4d1075a89db983f53d7b537b7b279ae4e4d0ac5b71213bed016dd7da996619c0
Oct 12 18:43:06.348 INFO running `"docker" "start" "-a" "4d1075a89db983f53d7b537b7b279ae4e4d0ac5b71213bed016dd7da996619c0"`
Oct 12 18:43:08.860 INFO kablam! usermod: no changes
Oct 12 18:43:08.956 INFO kablam!     Checking regex_vm v0.1.0 (/source)
Oct 12 18:43:09.604 INFO kablam! warning: unused import: `parser::Ast`
Oct 12 18:43:09.605 INFO kablam!  --> src/vm.rs:3:5
Oct 12 18:43:09.605 INFO kablam!   |
Oct 12 18:43:09.605 INFO kablam! 3 | use parser::Ast;
Oct 12 18:43:09.605 INFO kablam!   |     ^^^^^^^^^^^
Oct 12 18:43:09.605 INFO kablam!   |
Oct 12 18:43:09.605 INFO kablam!   = note: #[warn(unused_imports)] on by default
Oct 12 18:43:09.605 INFO kablam! 
Oct 12 18:43:09.605 INFO kablam! warning: unused import: `std::thread`
Oct 12 18:43:09.605 INFO kablam!  --> src/vm_ir.rs:1:5
Oct 12 18:43:09.605 INFO kablam!   |
Oct 12 18:43:09.605 INFO kablam! 1 | use std::thread;
Oct 12 18:43:09.605 INFO kablam!   |     ^^^^^^^^^^^
Oct 12 18:43:09.605 INFO kablam! 
Oct 12 18:43:09.677 INFO kablam! warning: unused import: `parser::Ast`
Oct 12 18:43:09.677 INFO kablam!  --> src/vm.rs:3:5
Oct 12 18:43:09.677 INFO kablam!   |
Oct 12 18:43:09.677 INFO kablam! 3 | use parser::Ast;
Oct 12 18:43:09.677 INFO kablam!   |     ^^^^^^^^^^^
Oct 12 18:43:09.677 INFO kablam!   |
Oct 12 18:43:09.677 INFO kablam!   = note: #[warn(unused_imports)] on by default
Oct 12 18:43:09.677 INFO kablam! 
Oct 12 18:43:09.679 INFO kablam! warning: unused import: `std::thread`
Oct 12 18:43:09.679 INFO kablam!  --> src/vm_ir.rs:1:5
Oct 12 18:43:09.679 INFO kablam!   |
Oct 12 18:43:09.679 INFO kablam! 1 | use std::thread;
Oct 12 18:43:09.679 INFO kablam!   |     ^^^^^^^^^^^
Oct 12 18:43:09.679 INFO kablam! 
Oct 12 18:43:09.800 INFO kablam! warning: unused variable: `pc`
Oct 12 18:43:09.801 INFO kablam!   --> src/vm.rs:51:17
Oct 12 18:43:09.801 INFO kablam!    |
Oct 12 18:43:09.801 INFO kablam! 51 |         Ir::Jmp(pc, pc_to) => vec![(pc_to, State::Run)],
Oct 12 18:43:09.801 INFO kablam!    |                 ^^ help: consider using `_pc` instead
Oct 12 18:43:09.801 INFO kablam!    |
Oct 12 18:43:09.801 INFO kablam!    = note: #[warn(unused_variables)] on by default
Oct 12 18:43:09.801 INFO kablam! 
Oct 12 18:43:09.801 INFO kablam! warning: unused variable: `pc`
Oct 12 18:43:09.801 INFO kablam!   --> src/vm.rs:52:19
Oct 12 18:43:09.801 INFO kablam!    |
Oct 12 18:43:09.801 INFO kablam! 52 |         Ir::Split(pc, pc_to1, pc_to2) => vec![(pc_to1, State::Run), (pc_to2, State::Run)],
Oct 12 18:43:09.801 INFO kablam!    |                   ^^ help: consider using `_pc` instead
Oct 12 18:43:09.801 INFO kablam! 
Oct 12 18:43:09.844 INFO kablam! warning: variable does not need to be mutable
Oct 12 18:43:09.844 INFO kablam!   --> src/vm.rs:12:28
Oct 12 18:43:09.844 INFO kablam!    |
Oct 12 18:43:09.844 INFO kablam! 12 | pub fn is_match(s: String, mut ir: Vec<Ir>) -> bool {
Oct 12 18:43:09.844 INFO kablam!    |                            ----^^
Oct 12 18:43:09.844 INFO kablam!    |                            |
Oct 12 18:43:09.844 INFO kablam!    |                            help: remove this `mut`
Oct 12 18:43:09.845 INFO kablam!    |
Oct 12 18:43:09.852 INFO kablam!    = note: #[warn(unused_mut)] on by default
Oct 12 18:43:09.853 INFO kablam! warning: unused variable: `pc`
Oct 12 18:43:09.853 INFO kablam!   --> src/vm.rs:51:17
Oct 12 18:43:09.853 INFO kablam!    |
Oct 12 18:43:09.853 INFO kablam! 51 |         Ir::Jmp(pc, pc_to) => vec![(pc_to, State::Run)],
Oct 12 18:43:09.853 INFO kablam!    |                 ^^ help: consider using `_pc` instead
Oct 12 18:43:09.853 INFO kablam!    |
Oct 12 18:43:09.853 INFO kablam!    = note: #[warn(unused_variables)] on by default
Oct 12 18:43:09.853 INFO kablam! 
Oct 12 18:43:09.853 INFO kablam! warning: unused variable: `pc`
Oct 12 18:43:09.853 INFO kablam!   --> src/vm.rs:52:19
Oct 12 18:43:09.855 INFO kablam!    |
Oct 12 18:43:09.855 INFO kablam! 52 |         Ir::Split(pc, pc_to1, pc_to2) => vec![(pc_to1, State::Run), (pc_to2, State::Run)],
Oct 12 18:43:09.855 INFO kablam!    |                   ^^ help: consider using `_pc` instead
Oct 12 18:43:09.855 INFO kablam! 
Oct 12 18:43:09.855 INFO kablam! 
Oct 12 18:43:09.872 INFO kablam! warning: variable does not need to be mutable
Oct 12 18:43:09.872 INFO kablam!   --> src/vm_ir.rs:70:9
Oct 12 18:43:09.872 INFO kablam!    |
Oct 12 18:43:09.873 INFO kablam! 70 |     let mut code = compose(ast, &mut pc);
Oct 12 18:43:09.873 INFO kablam!    |         ----^^^^
Oct 12 18:43:09.873 INFO kablam!    |         |
Oct 12 18:43:09.874 INFO kablam!    |         help: remove this `mut`
Oct 12 18:43:09.874 INFO kablam! 
Oct 12 18:43:09.876 INFO kablam! warning: variant is never constructed: `Nop`
Oct 12 18:43:09.877 INFO kablam!   --> src/vm_ir.rs:10:5
Oct 12 18:43:09.877 INFO kablam!    |
Oct 12 18:43:09.877 INFO kablam! 10 |     Nop(PC),
Oct 12 18:43:09.877 INFO kablam!    |     ^^^^^^^
Oct 12 18:43:09.878 INFO kablam! warning: variable does not need to be mutable
Oct 12 18:43:09.878 INFO kablam!   --> src/vm.rs:12:28
Oct 12 18:43:09.878 INFO kablam!    |
Oct 12 18:43:09.879 INFO kablam! 12 | pub fn is_match(s: String, mut ir: Vec<Ir>) -> bool {
Oct 12 18:43:09.879 INFO kablam!    |                            ----^^
Oct 12 18:43:09.879 INFO kablam!    |                            |
Oct 12 18:43:09.880 INFO kablam!    |                            help: remove this `mut`
Oct 12 18:43:09.880 INFO kablam!    |
Oct 12 18:43:09.880 INFO kablam!    = note: #[warn(unused_mut)] on by default
Oct 12 18:43:09.880 INFO kablam! 
Oct 12 18:43:09.881 INFO kablam!    |
Oct 12 18:43:09.881 INFO kablam!    = note: #[warn(dead_code)] on by default
Oct 12 18:43:09.881 INFO kablam! 
Oct 12 18:43:09.882 INFO kablam! warning: function is never used: `dump`
Oct 12 18:43:09.882 INFO kablam!   --> src/vm_ir.rs:76:1
Oct 12 18:43:09.882 INFO kablam!    |
Oct 12 18:43:09.883 INFO kablam! 76 | pub fn dump(irs: Vec<Ir>) {
Oct 12 18:43:09.883 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 12 18:43:09.883 INFO kablam! 
Oct 12 18:43:09.901 INFO kablam! warning: variable does not need to be mutable
Oct 12 18:43:09.902 INFO kablam!   --> src/vm_ir.rs:70:9
Oct 12 18:43:09.902 INFO kablam!    |
Oct 12 18:43:09.902 INFO kablam! 70 |     let mut code = compose(ast, &mut pc);
Oct 12 18:43:09.903 INFO kablam!    |         ----^^^^
Oct 12 18:43:09.903 INFO kablam!    |         |
Oct 12 18:43:09.903 INFO kablam!    |         help: remove this `mut`
Oct 12 18:43:09.903 INFO kablam! 
Oct 12 18:43:09.912 INFO kablam! warning: variant is never constructed: `Nop`
Oct 12 18:43:09.913 INFO kablam!   --> src/vm_ir.rs:10:5
Oct 12 18:43:09.913 INFO kablam!    |
Oct 12 18:43:09.913 INFO kablam! 10 |     Nop(PC),
Oct 12 18:43:09.913 INFO kablam!    |     ^^^^^^^
Oct 12 18:43:09.914 INFO kablam!    |
Oct 12 18:43:09.914 INFO kablam!    = note: #[warn(dead_code)] on by default
Oct 12 18:43:09.914 INFO kablam! 
Oct 12 18:43:09.914 INFO kablam! warning: function is never used: `dump`
Oct 12 18:43:09.915 INFO kablam!   --> src/vm_ir.rs:76:1
Oct 12 18:43:09.915 INFO kablam!    |
Oct 12 18:43:09.915 INFO kablam! 76 | pub fn dump(irs: Vec<Ir>) {
Oct 12 18:43:09.916 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 12 18:43:09.916 INFO kablam! 
Oct 12 18:43:09.977 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 1.05s
Oct 12 18:43:09.980 INFO kablam! su: No module specific data is present
Oct 12 18:43:11.324 INFO running `"docker" "rm" "-f" "4d1075a89db983f53d7b537b7b279ae4e4d0ac5b71213bed016dd7da996619c0"`
Oct 12 18:43:11.684 INFO blam! 4d1075a89db983f53d7b537b7b279ae4e4d0ac5b71213bed016dd7da996619c0