[INFO] updating cached repository Inphi/rust-lc3-vm
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/Inphi/rust-lc3-vm
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/Inphi/rust-lc3-vm" "work/ex/pr-63565/sources/master#c43d03a19f326f4a323569328cc501e86eb6d22e/gh/Inphi/rust-lc3-vm"`
[INFO] [stderr] Cloning into 'work/ex/pr-63565/sources/master#c43d03a19f326f4a323569328cc501e86eb6d22e/gh/Inphi/rust-lc3-vm'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Inphi/rust-lc3-vm" "work/ex/pr-63565/sources/try#75eff020d0923c035c2fe220db4a0465cd847048/gh/Inphi/rust-lc3-vm"`
[INFO] [stderr] Cloning into 'work/ex/pr-63565/sources/try#75eff020d0923c035c2fe220db4a0465cd847048/gh/Inphi/rust-lc3-vm'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] cfcd5d5d288938fffa8a21c96f40d60460dfb7f0
[INFO] sha for GitHub repo Inphi/rust-lc3-vm: cfcd5d5d288938fffa8a21c96f40d60460dfb7f0
[INFO] validating manifest of Inphi/rust-lc3-vm on toolchain master#c43d03a19f326f4a323569328cc501e86eb6d22e
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c43d03a19f326f4a323569328cc501e86eb6d22e-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of Inphi/rust-lc3-vm on toolchain try#75eff020d0923c035c2fe220db4a0465cd847048
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+75eff020d0923c035c2fe220db4a0465cd847048-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing Inphi/rust-lc3-vm
[INFO] finished frobbing Inphi/rust-lc3-vm
[INFO] frobbed toml for Inphi/rust-lc3-vm written to work/ex/pr-63565/sources/master#c43d03a19f326f4a323569328cc501e86eb6d22e/gh/Inphi/rust-lc3-vm/Cargo.toml
[INFO] started frobbing Inphi/rust-lc3-vm
[INFO] finished frobbing Inphi/rust-lc3-vm
[INFO] frobbed toml for Inphi/rust-lc3-vm written to work/ex/pr-63565/sources/try#75eff020d0923c035c2fe220db4a0465cd847048/gh/Inphi/rust-lc3-vm/Cargo.toml
[INFO] crate Inphi/rust-lc3-vm already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c43d03a19f326f4a323569328cc501e86eb6d22e-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+75eff020d0923c035c2fe220db4a0465cd847048-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking Inphi/rust-lc3-vm against try#75eff020d0923c035c2fe220db4a0465cd847048 for pr-63565
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63565/worker-6/try#75eff020d0923c035c2fe220db4a0465cd847048:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63565/sources/try#75eff020d0923c035c2fe220db4a0465cd847048/gh/Inphi/rust-lc3-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" "+75eff020d0923c035c2fe220db4a0465cd847048-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 88dd3404268f2339eb1aaa4a948fae796669a7a396af30e61670848225e94c99
[INFO] running `"docker" "start" "-a" "88dd3404268f2339eb1aaa4a948fae796669a7a396af30e61670848225e94c99"`
[INFO] [stderr]     Checking lc3-vm v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: function is never used: `in_t`
[INFO] [stderr]   --> src/trap.rs:48:1
[INFO] [stderr]    |
[INFO] [stderr] 48 | pub fn in_t(vm: &VM) {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `DPSR`
[INFO] [stderr]   --> src/vm.rs:17:1
[INFO] [stderr]    |
[INFO] [stderr] 17 | const DPSR: u16 = 0xFE04; // memory-mapped display status register
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `DPDR`
[INFO] [stderr]   --> src/vm.rs:18:1
[INFO] [stderr]    |
[INFO] [stderr] 18 | const DPDR: u16 = 0xFE06; // memory-mapped display data register
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `MCCR`
[INFO] [stderr]   --> src/vm.rs:19:1
[INFO] [stderr]    |
[INFO] [stderr] 19 | const MCCR: u16 = 0xFFFE; // memory-mapped machine control register
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `read`
[INFO] [stderr]    --> src/vm.rs:131:5
[INFO] [stderr]     |
[INFO] [stderr] 131 |     pub fn read(&self, r: Register) -> u16 {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `rwrite`
[INFO] [stderr]    --> src/vm.rs:135:5
[INFO] [stderr]     |
[INFO] [stderr] 135 |     pub fn rwrite(&mut self, r: Register, val: u16) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `in_t`
[INFO] [stderr]   --> src/trap.rs:48:1
[INFO] [stderr]    |
[INFO] [stderr] 48 | pub fn in_t(vm: &VM) {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `DPSR`
[INFO] [stderr]   --> src/vm.rs:17:1
[INFO] [stderr]    |
[INFO] [stderr] 17 | const DPSR: u16 = 0xFE04; // memory-mapped display status register
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `DPDR`
[INFO] [stderr]   --> src/vm.rs:18:1
[INFO] [stderr]    |
[INFO] [stderr] 18 | const DPDR: u16 = 0xFE06; // memory-mapped display data register
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `MCCR`
[INFO] [stderr]   --> src/vm.rs:19:1
[INFO] [stderr]    |
[INFO] [stderr] 19 | const MCCR: u16 = 0xFFFE; // memory-mapped machine control register
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `read`
[INFO] [stderr]    --> src/vm.rs:131:5
[INFO] [stderr]     |
[INFO] [stderr] 131 |     pub fn read(&self, r: Register) -> u16 {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `rwrite`
[INFO] [stderr]    --> src/vm.rs:135:5
[INFO] [stderr]     |
[INFO] [stderr] 135 |     pub fn rwrite(&mut self, r: Register, val: u16) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.31s
[INFO] running `"docker" "inspect" "88dd3404268f2339eb1aaa4a948fae796669a7a396af30e61670848225e94c99"`
[INFO] running `"docker" "rm" "-f" "88dd3404268f2339eb1aaa4a948fae796669a7a396af30e61670848225e94c99"`
[INFO] [stdout] 88dd3404268f2339eb1aaa4a948fae796669a7a396af30e61670848225e94c99