[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-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/totem3/machine"`
[INFO] [stderr] Cloning into 'work/ex/pr-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/totem3/machine'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/totem3/machine" "work/ex/pr-60039-1/sources/try#99a7498759a22b5684caf798a98b7e90ad9d2443/gh/totem3/machine"`
[INFO] [stderr] Cloning into 'work/ex/pr-60039-1/sources/try#99a7498759a22b5684caf798a98b7e90ad9d2443/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#e305df1846a6d985315917ae0c81b74af8b4e641
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e305df1846a6d985315917ae0c81b74af8b4e641-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of totem3/machine on toolchain try#99a7498759a22b5684caf798a98b7e90ad9d2443
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+99a7498759a22b5684caf798a98b7e90ad9d2443-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-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/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-60039-1/sources/try#99a7498759a22b5684caf798a98b7e90ad9d2443/gh/totem3/machine/Cargo.toml
[INFO] crate totem3/machine already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e305df1846a6d985315917ae0c81b74af8b4e641-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+99a7498759a22b5684caf798a98b7e90ad9d2443-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking totem3/machine against master#e305df1846a6d985315917ae0c81b74af8b4e641 for pr-60039-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-60039-1/worker-4/master#e305df1846a6d985315917ae0c81b74af8b4e641:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/totem3/machine:/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" "+e305df1846a6d985315917ae0c81b74af8b4e641-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] e79878e1069329a6c15e6741809bf4a3e24c6af891377156d83eca1ff35b894d
[INFO] running `"docker" "start" "-a" "e79878e1069329a6c15e6741809bf4a3e24c6af891377156d83eca1ff35b894d"`
[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 1.60s
[INFO] running `"docker" "inspect" "e79878e1069329a6c15e6741809bf4a3e24c6af891377156d83eca1ff35b894d"`
[INFO] running `"docker" "rm" "-f" "e79878e1069329a6c15e6741809bf4a3e24c6af891377156d83eca1ff35b894d"`
[INFO] [stdout] e79878e1069329a6c15e6741809bf4a3e24c6af891377156d83eca1ff35b894d