[INFO] cloning repository https://github.com/xiongmao86/mmix-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/xiongmao86/mmix-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxiongmao86%2Fmmix-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxiongmao86%2Fmmix-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 91df132fad6ba08a7288317a3a8c06bbcadcd781
[INFO] checking xiongmao86/mmix-rust against master#af4a5a13a15fa0c60e06321077ef452f769b42fd for pr-122960-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxiongmao86%2Fmmix-rust" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/xiongmao86/mmix-rust on toolchain af4a5a13a15fa0c60e06321077ef452f769b42fd
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/xiongmao86/mmix-rust
[INFO] finished tweaking git repo https://github.com/xiongmao86/mmix-rust
[INFO] tweaked toml for git repo https://github.com/xiongmao86/mmix-rust written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/xiongmao86/mmix-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4e6641d7f5c0f825c83df31d81f0760c0fbec50fe718d57e5e9bd402d1e4ac2e
[INFO] running `Command { std: "docker" "start" "-a" "4e6641d7f5c0f825c83df31d81f0760c0fbec50fe718d57e5e9bd402d1e4ac2e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4e6641d7f5c0f825c83df31d81f0760c0fbec50fe718d57e5e9bd402d1e4ac2e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4e6641d7f5c0f825c83df31d81f0760c0fbec50fe718d57e5e9bd402d1e4ac2e", kill_on_drop: false }`
[INFO] [stdout] 4e6641d7f5c0f825c83df31d81f0760c0fbec50fe718d57e5e9bd402d1e4ac2e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4fee30a313baaa2f70f5ff5e9f74be8f0493485ac7c4d54eb076b44661f02ce9
[INFO] running `Command { std: "docker" "start" "-a" "4fee30a313baaa2f70f5ff5e9f74be8f0493485ac7c4d54eb076b44661f02ce9", kill_on_drop: false }`
[INFO] [stderr]     Checking mmix v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `HashMemory`
[INFO] [stdout]  --> src/machine/mod.rs:2:23
[INFO] [stdout]   |
[INFO] [stdout] 2 | use memory::{ Memory, HashMemory };
[INFO] [stdout]   |                       ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `associated_type_bounds` has been stable since 1.79.0-nightly and no longer requires an attribute to enable
[INFO] [stdout]  --> src/main.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(associated_type_bounds)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `HashMemory`
[INFO] [stdout]  --> src/machine/mod.rs:2:23
[INFO] [stdout]   |
[INFO] [stdout] 2 | use memory::{ Memory, HashMemory };
[INFO] [stdout]   |                       ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `HashMemory` is imported redundantly
[INFO] [stdout]    --> src/machine/mod.rs:361:9
[INFO] [stdout]     |
[INFO] [stdout] 361 |     use super::memory::HashMemory;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 362 |     use super::*;
[INFO] [stdout]     |         -------- the item `HashMemory` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `associated_type_bounds` has been stable since 1.79.0-nightly and no longer requires an attribute to enable
[INFO] [stdout]  --> src/main.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(associated_type_bounds)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0170]: pattern binding `rR` is named the same as one of the variants of the type `machine::SpecialRegister`
[INFO] [stdout]   --> src/machine/mod.rs:35:9
[INFO] [stdout]    |
[INFO] [stdout] 35 |         rR => 6,
[INFO] [stdout]    |         ^^ help: to match on the variant, qualify the path: `machine::SpecialRegister::rR`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[deny(bindings_with_variant_name)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/machine/mod.rs:36:9
[INFO] [stdout]    |
[INFO] [stdout] 35 |         rR => 6,
[INFO] [stdout]    |         -- matches any value
[INFO] [stdout] 36 |         other => panic!("{:?} index not added.", other)
[INFO] [stdout]    |         ^^^^^ unreachable pattern
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rR`
[INFO] [stdout]   --> src/machine/mod.rs:35:9
[INFO] [stdout]    |
[INFO] [stdout] 35 |         rR => 6,
[INFO] [stdout]    |         ^^ help: if this is intentional, prefix it with an underscore: `_rR`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/machine/mod.rs:14:17
[INFO] [stdout]    |
[INFO] [stdout] 14 | struct Register(u64);
[INFO] [stdout]    |        -------- ^^^
[INFO] [stdout]    |        |
[INFO] [stdout]    |        field in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Register` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 14 | struct Register(());
[INFO] [stdout]    |                 ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `get` and `set` are never used
[INFO] [stdout]   --> src/machine/mod.rs:17:8
[INFO] [stdout]    |
[INFO] [stdout] 16 | impl Register {
[INFO] [stdout]    | ------------- methods in this implementation
[INFO] [stdout] 17 |     fn get(&self) -> u64 {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 21 |     fn set(&mut self, data: u64) {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `SpecialRegister` is never used
[INFO] [stdout]   --> src/machine/mod.rs:28:6
[INFO] [stdout]    |
[INFO] [stdout] 28 | enum SpecialRegister {
[INFO] [stdout]    |      ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `to_index` is never used
[INFO] [stdout]   --> src/machine/mod.rs:33:4
[INFO] [stdout]    |
[INFO] [stdout] 33 | fn to_index(sr: SpecialRegister) -> usize {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `execute`, `greg`, `spreg`, and `dummy_inst` are never used
[INFO] [stdout]    --> src/machine/mod.rs:57:8
[INFO] [stdout]     |
[INFO] [stdout] 56  | impl<T> Machine<T> where T: Memory {
[INFO] [stdout]     | ---------------------------------- associated items in this implementation
[INFO] [stdout] 57  |     fn new(memory: T) -> Machine<T> {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 105 |     fn execute(&mut self, inst: u32) {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 110 |     fn greg(&mut self, index: u8) -> &mut Register {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 114 |     fn spreg(&mut self, sr_name: SpecialRegister) -> &mut Register {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 118 |     fn dummy_inst(&mut self, ops: u32) {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple methods are never used
[INFO] [stdout]    --> src/machine/mod.rs:162:18
[INFO] [stdout]     |
[INFO] [stdout] 161 | impl<T> Machine<T> where T: Memory {
[INFO] [stdout]     | ---------------------------------- methods in this implementation
[INFO] [stdout] 162 |     load_method!(ldb, load_byte, i8);
[INFO] [stdout]     |                  ^^^
[INFO] [stdout] 163 |     load_method!(ldw, load_wyde, i16);
[INFO] [stdout]     |                  ^^^
[INFO] [stdout] 164 |     load_method!(ldt, load_tetra, i32);
[INFO] [stdout]     |                  ^^^
[INFO] [stdout] 165 |     load_method!(ldo, load_octa, i64);
[INFO] [stdout]     |                  ^^^
[INFO] [stdout] 166 |
[INFO] [stdout] 167 |     fn ldht(&mut self, inst: u32) {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 174 |     unsigned_load_method!(ldbu, load_byte);
[INFO] [stdout]     |                           ^^^^
[INFO] [stdout] 175 |     unsigned_load_method!(ldwu, load_wyde);
[INFO] [stdout]     |                           ^^^^
[INFO] [stdout] 176 |     unsigned_load_method!(ldtu, load_tetra);
[INFO] [stdout]     |                           ^^^^
[INFO] [stdout] 177 |     unsigned_load_method!(ldou, load_octa);
[INFO] [stdout]     |                           ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `load_method` which comes from the expansion of the macro `unsigned_load_method` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple methods are never used
[INFO] [stdout]    --> src/machine/mod.rs:193:19
[INFO] [stdout]     |
[INFO] [stdout] 192 | impl<T> Machine<T> where T: Memory {
[INFO] [stdout]     | ---------------------------------- methods in this implementation
[INFO] [stdout] 193 |     store_method!(stb, u8, store_byte);
[INFO] [stdout]     |                   ^^^
[INFO] [stdout] 194 |     store_method!(stw, u16, store_wyde);
[INFO] [stdout]     |                   ^^^
[INFO] [stdout] 195 |     store_method!(stt, u32, store_tetra);
[INFO] [stdout]     |                   ^^^
[INFO] [stdout] 196 |     store_method!(sto, u64, store_octa);
[INFO] [stdout]     |                   ^^^
[INFO] [stdout] 197 |
[INFO] [stdout] 198 |     alias_inst!(stbu, stb);
[INFO] [stdout]     |                 ^^^^
[INFO] [stdout] 199 |     alias_inst!(stwu, stw);
[INFO] [stdout]     |                 ^^^^
[INFO] [stdout] 200 |     alias_inst!(sttu, stt);
[INFO] [stdout]     |                 ^^^^
[INFO] [stdout] 201 |     alias_inst!(stou, sto);
[INFO] [stdout]     |                 ^^^^
[INFO] [stdout] 202 |
[INFO] [stdout] 203 |     fn stht(&mut self, inst: u32) {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 210 |     fn stco(&mut self, inst: u32) {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `store_method` which comes from the expansion of the macro `alias_inst` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `add`, `sub`, `mul`, and `div` are never used
[INFO] [stdout]    --> src/machine/mod.rs:231:24
[INFO] [stdout]     |
[INFO] [stdout] 230 | impl<T> Machine<T> where T: Memory {
[INFO] [stdout]     | ---------------------------------- methods in this implementation
[INFO] [stdout] 231 |     signed_arith_inst!(add, add);
[INFO] [stdout]     |                        ^^^
[INFO] [stdout] 232 |     signed_arith_inst!(sub, sub);
[INFO] [stdout]     |                        ^^^
[INFO] [stdout] 233 |     signed_arith_inst!(mul, mul);
[INFO] [stdout]     |                        ^^^
[INFO] [stdout] 234 |
[INFO] [stdout] 235 |     fn div(&mut self, inst: u32) {
[INFO] [stdout]     |        ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `signed_arith_inst` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple methods are never used
[INFO] [stdout]    --> src/machine/mod.rs:282:26
[INFO] [stdout]     |
[INFO] [stdout] 281 | impl<T> Machine<T> where T: Memory {
[INFO] [stdout]     | ---------------------------------- methods in this implementation
[INFO] [stdout] 282 |     unsigned_arith_inst!(addu, add);
[INFO] [stdout]     |                          ^^^^
[INFO] [stdout] 283 |     unsigned_arith_inst!(subu, sub);
[INFO] [stdout]     |                          ^^^^
[INFO] [stdout] 284 |
[INFO] [stdout] 285 |     fn mulu(&mut self, inst: u32) {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 300 |     fn divu(&mut self, inst: u32) {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 320 |     naddu_inst!(two_addu, 2);
[INFO] [stdout]     |                 ^^^^^^^^
[INFO] [stdout] 321 |     naddu_inst!(four_addu, 4);
[INFO] [stdout]     |                 ^^^^^^^^^
[INFO] [stdout] 322 |     naddu_inst!(eight_addu, 8);
[INFO] [stdout]     |                 ^^^^^^^^^^
[INFO] [stdout] 323 |     naddu_inst!(sixteen_addu, 16);
[INFO] [stdout]     |                 ^^^^^^^^^^^^
[INFO] [stdout] 324 |
[INFO] [stdout] 325 |     fn neg(&mut self, inst: u32) {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 333 |     fn negu(&mut self, inst: u32) {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `unsigned_arith_inst` which comes from the expansion of the macro `naddu_inst` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `one_operand` is never used
[INFO] [stdout]    --> src/machine/mod.rs:342:4
[INFO] [stdout]     |
[INFO] [stdout] 342 | fn one_operand(inst: u32) -> usize {
[INFO] [stdout]     |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `two_operands` is never used
[INFO] [stdout]    --> src/machine/mod.rs:346:4
[INFO] [stdout]     |
[INFO] [stdout] 346 | fn two_operands(inst: u32) -> (usize, usize) {
[INFO] [stdout]     |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `three_operands` is never used
[INFO] [stdout]    --> src/machine/mod.rs:352:4
[INFO] [stdout]     |
[INFO] [stdout] 352 | fn three_operands(inst: u32) -> (u8, u8, u8) {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple methods are never used
[INFO] [stdout]   --> src/machine/memory.rs:29:12
[INFO] [stdout]    |
[INFO] [stdout] 29 |         fn load_byte(&self, address: u64) -> u8 {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 48 |         fn store_byte(&mut self, address: u64, data: u8) {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 62 | pub trait Memory {
[INFO] [stdout]    |           ------ methods in this trait
[INFO] [stdout] 63 |     fn get(&self, index: u64) -> u8;
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 64 |     fn set(&mut self, index: u64, data: u8);
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 65 |
[INFO] [stdout] 66 |     fn index(&self, address: u64, byte_count: u64) -> u64 {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 70 |     create_load_fn!(load_byte, u8, 1);
[INFO] [stdout]    |     --------------------------------- in this macro invocation
[INFO] [stdout] 71 |     create_load_fn!(load_wyde, u16, 2);
[INFO] [stdout]    |                     ^^^^^^^^^
[INFO] [stdout] 72 |     create_load_fn!(load_tetra, u32, 4);
[INFO] [stdout]    |                     ^^^^^^^^^^
[INFO] [stdout] 73 |     create_load_fn!(load_octa, u64, 8);
[INFO] [stdout]    |                     ^^^^^^^^^
[INFO] [stdout] 74 |
[INFO] [stdout] 75 |     create_store_fn!(store_byte, u8, 1);
[INFO] [stdout]    |     ----------------------------------- in this macro invocation
[INFO] [stdout] 76 |     create_store_fn!(store_wyde, u16, 2);
[INFO] [stdout]    |                      ^^^^^^^^^^
[INFO] [stdout] 77 |     create_store_fn!(store_tetra, u32, 4);
[INFO] [stdout]    |                      ^^^^^^^^^^^
[INFO] [stdout] 78 |     create_store_fn!(store_octa, u64, 8);
[INFO] [stdout]    |                      ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `create_load_fn` which comes from the expansion of the macro `create_store_fn` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `rR` should have a snake case name
[INFO] [stdout]   --> src/machine/mod.rs:35:9
[INFO] [stdout]    |
[INFO] [stdout] 35 |         rR => 6,
[INFO] [stdout]    |         ^^ help: convert the identifier to snake case: `r_r`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error; 18 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0170`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `mmix` (bin "mmix") due to 2 previous errors; 18 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0170]: pattern binding `rR` is named the same as one of the variants of the type `machine::SpecialRegister`
[INFO] [stdout]   --> src/machine/mod.rs:35:9
[INFO] [stdout]    |
[INFO] [stdout] 35 |         rR => 6,
[INFO] [stdout]    |         ^^ help: to match on the variant, qualify the path: `machine::SpecialRegister::rR`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[deny(bindings_with_variant_name)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/machine/mod.rs:36:9
[INFO] [stdout]    |
[INFO] [stdout] 35 |         rR => 6,
[INFO] [stdout]    |         -- matches any value
[INFO] [stdout] 36 |         other => panic!("{:?} index not added.", other)
[INFO] [stdout]    |         ^^^^^ unreachable pattern
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rR`
[INFO] [stdout]   --> src/machine/mod.rs:35:9
[INFO] [stdout]    |
[INFO] [stdout] 35 |         rR => 6,
[INFO] [stdout]    |         ^^ help: if this is intentional, prefix it with an underscore: `_rR`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple variants are never constructed
[INFO] [stdout]   --> src/machine/mod.rs:29:5
[INFO] [stdout]    |
[INFO] [stdout] 28 | enum SpecialRegister {
[INFO] [stdout]    |      --------------- variants in this enum
[INFO] [stdout] 29 |     rA, rB, rC, rD, rE, rF, rG, rH, rI, rJ, rK, rL, rM, rN, rO, rP, rQ, rR, rS, rT, rU, rV, rW, rX, rY, rZ,
[INFO] [stdout]    |     ^^  ^^  ^^      ^^  ^^  ^^  ^^  ^^  ^^  ^^  ^^  ^^  ^^  ^^  ^^  ^^      ^^  ^^  ^^  ^^  ^^  ^^  ^^  ^^
[INFO] [stdout] 30 |     rBB, rTT, rWW, rXX, rYY, rZZ
[INFO] [stdout]    |     ^^^  ^^^  ^^^  ^^^  ^^^  ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `SpecialRegister` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `one_operand` is never used
[INFO] [stdout]    --> src/machine/mod.rs:342:4
[INFO] [stdout]     |
[INFO] [stdout] 342 | fn one_operand(inst: u32) -> usize {
[INFO] [stdout]     |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `two_operands` is never used
[INFO] [stdout]    --> src/machine/mod.rs:346:4
[INFO] [stdout]     |
[INFO] [stdout] 346 | fn two_operands(inst: u32) -> (usize, usize) {
[INFO] [stdout]     |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `rR` should have a snake case name
[INFO] [stdout]   --> src/machine/mod.rs:35:9
[INFO] [stdout]    |
[INFO] [stdout] 35 |         rR => 6,
[INFO] [stdout]    |         ^^ help: convert the identifier to snake case: `r_r`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error; 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0170`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `mmix` (bin "mmix" test) due to 2 previous errors; 9 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "4fee30a313baaa2f70f5ff5e9f74be8f0493485ac7c4d54eb076b44661f02ce9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4fee30a313baaa2f70f5ff5e9f74be8f0493485ac7c4d54eb076b44661f02ce9", kill_on_drop: false }`
[INFO] [stdout] 4fee30a313baaa2f70f5ff5e9f74be8f0493485ac7c4d54eb076b44661f02ce9