[INFO] updating cached repository Isaac-Lozano/um-rust
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/Isaac-Lozano/um-rust
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/Isaac-Lozano/um-rust" "work/ex/clippy-test-run/sources/stable/gh/Isaac-Lozano/um-rust"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/Isaac-Lozano/um-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Isaac-Lozano/um-rust" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/Isaac-Lozano/um-rust"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/Isaac-Lozano/um-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 54183eeb66bf05b8a9c305425716d2c4c824a369
[INFO] sha for GitHub repo Isaac-Lozano/um-rust: 54183eeb66bf05b8a9c305425716d2c4c824a369
[INFO] validating manifest of Isaac-Lozano/um-rust on toolchain stable
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of Isaac-Lozano/um-rust on toolchain stable+rustflags=-Dclippy::into_iter_on_array
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing Isaac-Lozano/um-rust
[INFO] finished frobbing Isaac-Lozano/um-rust
[INFO] frobbed toml for Isaac-Lozano/um-rust written to work/ex/clippy-test-run/sources/stable/gh/Isaac-Lozano/um-rust/Cargo.toml
[INFO] started frobbing Isaac-Lozano/um-rust
[INFO] finished frobbing Isaac-Lozano/um-rust
[INFO] frobbed toml for Isaac-Lozano/um-rust written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/Isaac-Lozano/um-rust/Cargo.toml
[INFO] crate Isaac-Lozano/um-rust has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] linting Isaac-Lozano/um-rust against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-5/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/gh/Isaac-Lozano/um-rust:/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" "+stable" "clippy" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 7d1033729474a784d618dc594a483b2161819d61922915bc229517cbecac6ddd
[INFO] running `"docker" "start" "-a" "7d1033729474a784d618dc594a483b2161819d61922915bc229517cbecac6ddd"`
[INFO] [stderr]     Checking um v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: Constants have by default a `'static` lifetime
[INFO] [stderr]  --> src/um.rs:7:28
[INFO] [stderr]   |
[INFO] [stderr] 7 | const OP_FUNCTION_TABLE: [&'static Fn(&mut Um, usize, usize, usize, u32) -> UmResult<bool>; 14] =
[INFO] [stderr]   |                           -^^^^^^^-------------------------------------------------------- help: consider removing `'static`: `&Fn(&mut Um, usize, usize, usize, u32) -> UmResult<bool>`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(clippy::const_static_lifetime)] on by default
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#const_static_lifetime
[INFO] [stderr] 
[INFO] [stderr] warning: Constants have by default a `'static` lifetime
[INFO] [stderr]   --> src/um.rs:25:26
[INFO] [stderr]    |
[INFO] [stderr] 25 | const OP_STRING_TABLE: [&'static str; 14] = 
[INFO] [stderr]    |                         -^^^^^^^---- help: consider removing `'static`: `&str`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#const_static_lifetime
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]    --> src/um.rs:156:35
[INFO] [stderr]     |
[INFO] [stderr] 156 |         let opcode = ((operator & 0xF0000000) >> 28) as usize;
[INFO] [stderr]     |                                   ^^^^^^^^^^ help: consider: `0xF000_0000`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::unreadable_literal)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]    --> src/um.rs:191:43
[INFO] [stderr]     |
[INFO] [stderr] 191 |                 let opcode = ((operator & 0xF0000000) >> 28) as usize;
[INFO] [stderr]     |                                           ^^^^^^^^^^ help: consider: `0xF000_0000`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]    --> src/um.rs:298:56
[INFO] [stderr]     |
[INFO] [stderr] 298 |         self.regs[a] = (self.regs[b] & self.regs[c]) ^ 0xFFFFFFFF;
[INFO] [stderr]     |                                                        ^^^^^^^^^^ help: consider: `0xFFFF_FFFF`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]    --> src/um.rs:375:29
[INFO] [stderr]     |
[INFO] [stderr] 375 |         self.regs[((instr & 0x0E000000) >> 25) as usize] = instr & 0x01FFFFFF;
[INFO] [stderr]     |                             ^^^^^^^^^^ help: consider: `0x0E00_0000`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]    --> src/um.rs:375:68
[INFO] [stderr]     |
[INFO] [stderr] 375 |         self.regs[((instr & 0x0E000000) >> 25) as usize] = instr & 0x01FFFFFF;
[INFO] [stderr]     |                                                                    ^^^^^^^^^^ help: consider: `0x01FF_FFFF`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: very complex type used. Consider factoring parts into `type` definitions
[INFO] [stderr]  --> src/um.rs:7:26
[INFO] [stderr]   |
[INFO] [stderr] 7 | const OP_FUNCTION_TABLE: [&'static Fn(&mut Um, usize, usize, usize, u32) -> UmResult<bool>; 14] =
[INFO] [stderr]   |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(clippy::type_complexity)] on by default
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#type_complexity
[INFO] [stderr] 
[INFO] [stderr] warning: using `clone` on a `Copy` type
[INFO] [stderr]    --> src/um.rs:152:24
[INFO] [stderr]     |
[INFO] [stderr] 152 |           let operator = try!(self.zero
[INFO] [stderr]     |  ________________________^
[INFO] [stderr] 153 | |                                 .get(self.execution_finger)
[INFO] [stderr] 154 | |                                 .ok_or(UmError::ExecutionFingerOutOfBounds))
[INFO] [stderr] 155 | |                                 .clone();
[INFO] [stderr]     | |________________________________________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::clone_on_copy)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy
[INFO] [stderr] help: try dereferencing it
[INFO] [stderr]     |
[INFO] [stderr] 152 |         let operator = *(match $ expr {
[INFO] [stderr] 153 | $ crate :: result :: Result :: Ok ( val ) => val , $ crate :: result :: Result
[INFO] [stderr] 154 | :: Err ( err ) => {
[INFO] [stderr] 155 | return $ crate :: result :: Result :: Err (
[INFO] [stderr] 156 | $ crate :: convert :: From :: from ( err ) ) } });
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: using `clone` on a `Copy` type
[INFO] [stderr]    --> src/um.rs:235:28
[INFO] [stderr]     |
[INFO] [stderr] 235 |             self.regs[a] = try!(self.zero.get(self.regs[c] as usize).ok_or(UmError::InvalidArrayAccess)).clone();
[INFO] [stderr]     |                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy
[INFO] [stderr] help: try dereferencing it
[INFO] [stderr]     |
[INFO] [stderr] 235 |             self.regs[a] = *(match $ expr {
[INFO] [stderr] 236 | $ crate :: result :: Result :: Ok ( val ) => val , $ crate :: result :: Result
[INFO] [stderr] 237 | :: Err ( err ) => {
[INFO] [stderr] 238 | return $ crate :: result :: Result :: Err (
[INFO] [stderr] 239 | $ crate :: convert :: From :: from ( err ) ) } });
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: using `clone` on a `Copy` type
[INFO] [stderr]    --> src/um.rs:239:28
[INFO] [stderr]     |
[INFO] [stderr] 239 |               self.regs[a] = try!(self.arrays
[INFO] [stderr]     |  ____________________________^
[INFO] [stderr] 240 | |                                     .get(&self.regs[b])
[INFO] [stderr] 241 | |                                     .and_then(|x| x.get(self.regs[c] as usize))
[INFO] [stderr] 242 | |                                     .ok_or(UmError::InvalidArrayAccess)).clone();
[INFO] [stderr]     | |________________________________________________________________________________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy
[INFO] [stderr] help: try dereferencing it
[INFO] [stderr]     |
[INFO] [stderr] 239 |             self.regs[a] = *(match $ expr {
[INFO] [stderr] 240 | $ crate :: result :: Result :: Ok ( val ) => val , $ crate :: result :: Result
[INFO] [stderr] 241 | :: Err ( err ) => {
[INFO] [stderr] 242 | return $ crate :: result :: Result :: Err (
[INFO] [stderr] 243 | $ crate :: convert :: From :: from ( err ) ) } });
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: redundant pattern matching, consider using `is_ok()`
[INFO] [stderr]    --> src/um.rs:351:16
[INFO] [stderr]     |
[INFO] [stderr] 351 |           if let Ok(_) = io::stdin().read_exact(&mut buf)
[INFO] [stderr]     |  _________-      ^^^^^
[INFO] [stderr] 352 | |         {
[INFO] [stderr] 353 | |             self.regs[c] = buf[0] as u32;
[INFO] [stderr] 354 | |         }
[INFO] [stderr]     | |_________- help: try this: `if io::stdin().read_exact(&mut buf).is_ok()`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::redundant_pattern_matching)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_pattern_matching
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to u32 may become silently lossy if types change
[INFO] [stderr]    --> src/um.rs:353:28
[INFO] [stderr]     |
[INFO] [stderr] 353 |             self.regs[c] = buf[0] as u32;
[INFO] [stderr]     |                            ^^^^^^^^^^^^^ help: try: `u32::from(buf[0])`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::cast_lossless)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to u32 may become silently lossy if types change
[INFO] [stderr]   --> src/main.rs:34:19
[INFO] [stderr]    |
[INFO] [stderr] 34 |         platter = buf[3] as u32;
[INFO] [stderr]    |                   ^^^^^^^^^^^^^ help: try: `u32::from(buf[3])`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to u32 may become silently lossy if types change
[INFO] [stderr]   --> src/main.rs:35:20
[INFO] [stderr]    |
[INFO] [stderr] 35 |         platter |= (buf[2] as u32) << 8;
[INFO] [stderr]    |                    ^^^^^^^^^^^^^^^ help: try: `u32::from(buf[2])`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to u32 may become silently lossy if types change
[INFO] [stderr]   --> src/main.rs:36:20
[INFO] [stderr]    |
[INFO] [stderr] 36 |         platter |= (buf[1] as u32) << 16;
[INFO] [stderr]    |                    ^^^^^^^^^^^^^^^ help: try: `u32::from(buf[1])`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to u32 may become silently lossy if types change
[INFO] [stderr]   --> src/main.rs:37:20
[INFO] [stderr]    |
[INFO] [stderr] 37 |         platter |= (buf[0] as u32) << 24;
[INFO] [stderr]    |                    ^^^^^^^^^^^^^^^ help: try: `u32::from(buf[0])`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: use of `unwrap_or` followed by a function call
[INFO] [stderr]   --> src/main.rs:47:32
[INFO] [stderr]    |
[INFO] [stderr] 47 |     let progname = args.next().unwrap_or(String::from("um"));
[INFO] [stderr]    |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(|| String::from("um"))`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::or_fun_call)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#or_fun_call
[INFO] [stderr] 
[INFO] [stderr] warning: Constants have by default a `'static` lifetime
[INFO] [stderr]  --> src/um.rs:7:28
[INFO] [stderr]   |
[INFO] [stderr] 7 | const OP_FUNCTION_TABLE: [&'static Fn(&mut Um, usize, usize, usize, u32) -> UmResult<bool>; 14] =
[INFO] [stderr]   |                           -^^^^^^^-------------------------------------------------------- help: consider removing `'static`: `&Fn(&mut Um, usize, usize, usize, u32) -> UmResult<bool>`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(clippy::const_static_lifetime)] on by default
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#const_static_lifetime
[INFO] [stderr] 
[INFO] [stderr] warning: Constants have by default a `'static` lifetime
[INFO] [stderr]   --> src/um.rs:25:26
[INFO] [stderr]    |
[INFO] [stderr] 25 | const OP_STRING_TABLE: [&'static str; 14] = 
[INFO] [stderr]    |                         -^^^^^^^---- help: consider removing `'static`: `&str`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#const_static_lifetime
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]    --> src/um.rs:156:35
[INFO] [stderr]     |
[INFO] [stderr] 156 |         let opcode = ((operator & 0xF0000000) >> 28) as usize;
[INFO] [stderr]     |                                   ^^^^^^^^^^ help: consider: `0xF000_0000`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::unreadable_literal)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]    --> src/um.rs:191:43
[INFO] [stderr]     |
[INFO] [stderr] 191 |                 let opcode = ((operator & 0xF0000000) >> 28) as usize;
[INFO] [stderr]     |                                           ^^^^^^^^^^ help: consider: `0xF000_0000`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]    --> src/um.rs:298:56
[INFO] [stderr]     |
[INFO] [stderr] 298 |         self.regs[a] = (self.regs[b] & self.regs[c]) ^ 0xFFFFFFFF;
[INFO] [stderr]     |                                                        ^^^^^^^^^^ help: consider: `0xFFFF_FFFF`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]    --> src/um.rs:375:29
[INFO] [stderr]     |
[INFO] [stderr] 375 |         self.regs[((instr & 0x0E000000) >> 25) as usize] = instr & 0x01FFFFFF;
[INFO] [stderr]     |                             ^^^^^^^^^^ help: consider: `0x0E00_0000`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]    --> src/um.rs:375:68
[INFO] [stderr]     |
[INFO] [stderr] 375 |         self.regs[((instr & 0x0E000000) >> 25) as usize] = instr & 0x01FFFFFF;
[INFO] [stderr]     |                                                                    ^^^^^^^^^^ help: consider: `0x01FF_FFFF`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: very complex type used. Consider factoring parts into `type` definitions
[INFO] [stderr]  --> src/um.rs:7:26
[INFO] [stderr]   |
[INFO] [stderr] 7 | const OP_FUNCTION_TABLE: [&'static Fn(&mut Um, usize, usize, usize, u32) -> UmResult<bool>; 14] =
[INFO] [stderr]   |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(clippy::type_complexity)] on by default
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#type_complexity
[INFO] [stderr] 
[INFO] [stderr] warning: using `clone` on a `Copy` type
[INFO] [stderr]    --> src/um.rs:152:24
[INFO] [stderr]     |
[INFO] [stderr] 152 |           let operator = try!(self.zero
[INFO] [stderr]     |  ________________________^
[INFO] [stderr] 153 | |                                 .get(self.execution_finger)
[INFO] [stderr] 154 | |                                 .ok_or(UmError::ExecutionFingerOutOfBounds))
[INFO] [stderr] 155 | |                                 .clone();
[INFO] [stderr]     | |________________________________________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::clone_on_copy)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy
[INFO] [stderr] help: try dereferencing it
[INFO] [stderr]     |
[INFO] [stderr] 152 |         let operator = *(match $ expr {
[INFO] [stderr] 153 | $ crate :: result :: Result :: Ok ( val ) => val , $ crate :: result :: Result
[INFO] [stderr] 154 | :: Err ( err ) => {
[INFO] [stderr] 155 | return $ crate :: result :: Result :: Err (
[INFO] [stderr] 156 | $ crate :: convert :: From :: from ( err ) ) } });
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: using `clone` on a `Copy` type
[INFO] [stderr]    --> src/um.rs:235:28
[INFO] [stderr]     |
[INFO] [stderr] 235 |             self.regs[a] = try!(self.zero.get(self.regs[c] as usize).ok_or(UmError::InvalidArrayAccess)).clone();
[INFO] [stderr]     |                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy
[INFO] [stderr] help: try dereferencing it
[INFO] [stderr]     |
[INFO] [stderr] 235 |             self.regs[a] = *(match $ expr {
[INFO] [stderr] 236 | $ crate :: result :: Result :: Ok ( val ) => val , $ crate :: result :: Result
[INFO] [stderr] 237 | :: Err ( err ) => {
[INFO] [stderr] 238 | return $ crate :: result :: Result :: Err (
[INFO] [stderr] 239 | $ crate :: convert :: From :: from ( err ) ) } });
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: using `clone` on a `Copy` type
[INFO] [stderr]    --> src/um.rs:239:28
[INFO] [stderr]     |
[INFO] [stderr] 239 |               self.regs[a] = try!(self.arrays
[INFO] [stderr]     |  ____________________________^
[INFO] [stderr] 240 | |                                     .get(&self.regs[b])
[INFO] [stderr] 241 | |                                     .and_then(|x| x.get(self.regs[c] as usize))
[INFO] [stderr] 242 | |                                     .ok_or(UmError::InvalidArrayAccess)).clone();
[INFO] [stderr]     | |________________________________________________________________________________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy
[INFO] [stderr] help: try dereferencing it
[INFO] [stderr]     |
[INFO] [stderr] 239 |             self.regs[a] = *(match $ expr {
[INFO] [stderr] 240 | $ crate :: result :: Result :: Ok ( val ) => val , $ crate :: result :: Result
[INFO] [stderr] 241 | :: Err ( err ) => {
[INFO] [stderr] 242 | return $ crate :: result :: Result :: Err (
[INFO] [stderr] 243 | $ crate :: convert :: From :: from ( err ) ) } });
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: redundant pattern matching, consider using `is_ok()`
[INFO] [stderr]    --> src/um.rs:351:16
[INFO] [stderr]     |
[INFO] [stderr] 351 |           if let Ok(_) = io::stdin().read_exact(&mut buf)
[INFO] [stderr]     |  _________-      ^^^^^
[INFO] [stderr] 352 | |         {
[INFO] [stderr] 353 | |             self.regs[c] = buf[0] as u32;
[INFO] [stderr] 354 | |         }
[INFO] [stderr]     | |_________- help: try this: `if io::stdin().read_exact(&mut buf).is_ok()`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::redundant_pattern_matching)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_pattern_matching
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to u32 may become silently lossy if types change
[INFO] [stderr]    --> src/um.rs:353:28
[INFO] [stderr]     |
[INFO] [stderr] 353 |             self.regs[c] = buf[0] as u32;
[INFO] [stderr]     |                            ^^^^^^^^^^^^^ help: try: `u32::from(buf[0])`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::cast_lossless)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to u32 may become silently lossy if types change
[INFO] [stderr]   --> src/main.rs:34:19
[INFO] [stderr]    |
[INFO] [stderr] 34 |         platter = buf[3] as u32;
[INFO] [stderr]    |                   ^^^^^^^^^^^^^ help: try: `u32::from(buf[3])`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to u32 may become silently lossy if types change
[INFO] [stderr]   --> src/main.rs:35:20
[INFO] [stderr]    |
[INFO] [stderr] 35 |         platter |= (buf[2] as u32) << 8;
[INFO] [stderr]    |                    ^^^^^^^^^^^^^^^ help: try: `u32::from(buf[2])`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to u32 may become silently lossy if types change
[INFO] [stderr]   --> src/main.rs:36:20
[INFO] [stderr]    |
[INFO] [stderr] 36 |         platter |= (buf[1] as u32) << 16;
[INFO] [stderr]    |                    ^^^^^^^^^^^^^^^ help: try: `u32::from(buf[1])`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to u32 may become silently lossy if types change
[INFO] [stderr]   --> src/main.rs:37:20
[INFO] [stderr]    |
[INFO] [stderr] 37 |         platter |= (buf[0] as u32) << 24;
[INFO] [stderr]    |                    ^^^^^^^^^^^^^^^ help: try: `u32::from(buf[0])`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: use of `unwrap_or` followed by a function call
[INFO] [stderr]   --> src/main.rs:47:32
[INFO] [stderr]    |
[INFO] [stderr] 47 |     let progname = args.next().unwrap_or(String::from("um"));
[INFO] [stderr]    |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(|| String::from("um"))`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::or_fun_call)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#or_fun_call
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.00s
[INFO] running `"docker" "inspect" "7d1033729474a784d618dc594a483b2161819d61922915bc229517cbecac6ddd"`
[INFO] running `"docker" "rm" "-f" "7d1033729474a784d618dc594a483b2161819d61922915bc229517cbecac6ddd"`
[INFO] [stdout] 7d1033729474a784d618dc594a483b2161819d61922915bc229517cbecac6ddd