[INFO] updating cached repository totem3/machine
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/totem3/machine
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/totem3/machine" "work/ex/pr-59199/sources/master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7/gh/totem3/machine"`
[INFO] [stderr] Cloning into 'work/ex/pr-59199/sources/master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7/gh/totem3/machine'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/totem3/machine" "work/ex/pr-59199/sources/try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b/gh/totem3/machine"`
[INFO] [stderr] Cloning into 'work/ex/pr-59199/sources/try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b/gh/totem3/machine'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 405ae9a044e0dbe08e4801cc50a9141509b541f3
[INFO] sha for GitHub repo totem3/machine: 405ae9a044e0dbe08e4801cc50a9141509b541f3
[INFO] validating manifest of totem3/machine on toolchain master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of totem3/machine on toolchain try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing totem3/machine
[INFO] finished frobbing totem3/machine
[INFO] frobbed toml for totem3/machine written to work/ex/pr-59199/sources/master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7/gh/totem3/machine/Cargo.toml
[INFO] started frobbing totem3/machine
[INFO] finished frobbing totem3/machine
[INFO] frobbed toml for totem3/machine written to work/ex/pr-59199/sources/try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b/gh/totem3/machine/Cargo.toml
[INFO] crate totem3/machine already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking totem3/machine against try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b for pr-59199
[INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-59199/worker-3/try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-59199/sources/try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b/gh/totem3/machine:/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" "+68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] ec7475ff8b34fb15f8561dcd096bbda763db99ed077eed77152fe6b72d28dd73
[INFO] running `"docker" "start" "-a" "ec7475ff8b34fb15f8561dcd096bbda763db99ed077eed77152fe6b72d28dd73"`
[INFO] [stderr]     Checking regex v0.1.80
[INFO] [stderr]     Checking env_logger v0.3.5
[INFO] [stderr]     Checking vm v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `super::super::ops::ByteContainer`
[INFO] [stderr]    --> src/cpu.rs:174:9
[INFO] [stderr]     |
[INFO] [stderr] 174 |     use super::super::ops::ByteContainer;
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `lop`
[INFO] [stderr]   --> src/instruction.rs:38:31
[INFO] [stderr]    |
[INFO] [stderr] 38 |             Operation::Ld(ref lop, ref rop) => {
[INFO] [stderr]    |                               ^^^ help: consider prefixing with an underscore: `_lop`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `rop`
[INFO] [stderr]   --> src/instruction.rs:38:40
[INFO] [stderr]    |
[INFO] [stderr] 38 |             Operation::Ld(ref lop, ref rop) => {
[INFO] [stderr]    |                                        ^^^ help: consider prefixing with an underscore: `_rop`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `lop`
[INFO] [stderr]   --> src/instruction.rs:41:32
[INFO] [stderr]    |
[INFO] [stderr] 41 |             Operation::Add(ref lop, ref rop) => {}
[INFO] [stderr]    |                                ^^^ help: consider prefixing with an underscore: `_lop`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `rop`
[INFO] [stderr]   --> src/instruction.rs:41:41
[INFO] [stderr]    |
[INFO] [stderr] 41 |             Operation::Add(ref lop, ref rop) => {}
[INFO] [stderr]    |                                         ^^^ help: consider prefixing with an underscore: `_rop`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `Immediate16`
[INFO] [stderr]   --> src/instruction.rs:51:43
[INFO] [stderr]    |
[INFO] [stderr] 51 |             (Operand::Reg16(ref num), ref Immediate16) => {
[INFO] [stderr]    |                                           ^^^^^^^^^^^ help: consider prefixing with an underscore: `_Immediate16`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `num`
[INFO] [stderr]   --> src/instruction.rs:51:33
[INFO] [stderr]    |
[INFO] [stderr] 51 |             (Operand::Reg16(ref num), ref Immediate16) => {
[INFO] [stderr]    |                                 ^^^ help: consider prefixing with an underscore: `_num`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `val`
[INFO] [stderr]   --> src/instruction.rs:52:21
[INFO] [stderr]    |
[INFO] [stderr] 52 |                 let val: u16 = ((args[1] as u16) << 8) | (args[0] as u16);
[INFO] [stderr]    |                     ^^^ help: consider prefixing with an underscore: `_val`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `cpu`
[INFO] [stderr]   --> src/instruction.rs:45:20
[INFO] [stderr]    |
[INFO] [stderr] 45 |     fn load(&self, cpu: &mut Cpu, args: Vec<u8>) {
[INFO] [stderr]    |                    ^^^ help: consider prefixing with an underscore: `_cpu`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `Immediate16` should have a snake case name
[INFO] [stderr]   --> src/instruction.rs:51:43
[INFO] [stderr]    |
[INFO] [stderr] 51 |             (Operand::Reg16(ref num), ref Immediate16) => {
[INFO] [stderr]    |                                           ^^^^^^^^^^^ help: convert the identifier to snake case: `immediate16`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(non_snake_case)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `lop`
[INFO] [stderr]   --> src/instruction.rs:38:31
[INFO] [stderr]    |
[INFO] [stderr] 38 |             Operation::Ld(ref lop, ref rop) => {
[INFO] [stderr]    |                               ^^^ help: consider prefixing with an underscore: `_lop`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `rop`
[INFO] [stderr]   --> src/instruction.rs:38:40
[INFO] [stderr]    |
[INFO] [stderr] 38 |             Operation::Ld(ref lop, ref rop) => {
[INFO] [stderr]    |                                        ^^^ help: consider prefixing with an underscore: `_rop`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `lop`
[INFO] [stderr]   --> src/instruction.rs:41:32
[INFO] [stderr]    |
[INFO] [stderr] 41 |             Operation::Add(ref lop, ref rop) => {}
[INFO] [stderr]    |                                ^^^ help: consider prefixing with an underscore: `_lop`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `rop`
[INFO] [stderr]   --> src/instruction.rs:41:41
[INFO] [stderr]    |
[INFO] [stderr] 41 |             Operation::Add(ref lop, ref rop) => {}
[INFO] [stderr]    |                                         ^^^ help: consider prefixing with an underscore: `_rop`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `Immediate16`
[INFO] [stderr]   --> src/instruction.rs:51:43
[INFO] [stderr]    |
[INFO] [stderr] 51 |             (Operand::Reg16(ref num), ref Immediate16) => {
[INFO] [stderr]    |                                           ^^^^^^^^^^^ help: consider prefixing with an underscore: `_Immediate16`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `num`
[INFO] [stderr]   --> src/instruction.rs:51:33
[INFO] [stderr]    |
[INFO] [stderr] 51 |             (Operand::Reg16(ref num), ref Immediate16) => {
[INFO] [stderr]    |                                 ^^^ help: consider prefixing with an underscore: `_num`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `val`
[INFO] [stderr]   --> src/instruction.rs:52:21
[INFO] [stderr]    |
[INFO] [stderr] 52 |                 let val: u16 = ((args[1] as u16) << 8) | (args[0] as u16);
[INFO] [stderr]    |                     ^^^ help: consider prefixing with an underscore: `_val`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `cpu`
[INFO] [stderr]   --> src/instruction.rs:45:20
[INFO] [stderr]    |
[INFO] [stderr] 45 |     fn load(&self, cpu: &mut Cpu, args: Vec<u8>) {
[INFO] [stderr]    |                    ^^^ help: consider prefixing with an underscore: `_cpu`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/cpu.rs:191:13
[INFO] [stderr]     |
[INFO] [stderr] 191 |         let mut b = match cpu.reg16(Register16::SP) {
[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/cpu.rs:204:13
[INFO] [stderr]     |
[INFO] [stderr] 204 |         let mut b = match cpu.reg16(Register16::BC) {
[INFO] [stderr]     |             ----^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `Immediate16` should have a snake case name
[INFO] [stderr]   --> src/instruction.rs:51:43
[INFO] [stderr]    |
[INFO] [stderr] 51 |             (Operand::Reg16(ref num), ref Immediate16) => {
[INFO] [stderr]    |                                           ^^^^^^^^^^^ help: convert the identifier to snake case: `immediate16`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(non_snake_case)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.47s
[INFO] running `"docker" "inspect" "ec7475ff8b34fb15f8561dcd096bbda763db99ed077eed77152fe6b72d28dd73"`
[INFO] running `"docker" "rm" "-f" "ec7475ff8b34fb15f8561dcd096bbda763db99ed077eed77152fe6b72d28dd73"`
[INFO] [stdout] ec7475ff8b34fb15f8561dcd096bbda763db99ed077eed77152fe6b72d28dd73