[INFO] updating cached repository grsouza/rgbem
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/grsouza/rgbem
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/grsouza/rgbem" "work/ex/pr-57745/sources/master#f613dc138b4012cf3d2eb40718fbcc7cf0a34039/gh/grsouza/rgbem"`
[INFO] [stderr] Cloning into 'work/ex/pr-57745/sources/master#f613dc138b4012cf3d2eb40718fbcc7cf0a34039/gh/grsouza/rgbem'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/grsouza/rgbem" "work/ex/pr-57745/sources/try#29640c57b5f92febba0e40c50cb863c9a7ede51d/gh/grsouza/rgbem"`
[INFO] [stderr] Cloning into 'work/ex/pr-57745/sources/try#29640c57b5f92febba0e40c50cb863c9a7ede51d/gh/grsouza/rgbem'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] bc1fb104306c2ead5af5d5c6e0d227fdc8237c44
[INFO] sha for GitHub repo grsouza/rgbem: bc1fb104306c2ead5af5d5c6e0d227fdc8237c44
[INFO] validating manifest of grsouza/rgbem on toolchain master#f613dc138b4012cf3d2eb40718fbcc7cf0a34039
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+f613dc138b4012cf3d2eb40718fbcc7cf0a34039-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of grsouza/rgbem on toolchain try#29640c57b5f92febba0e40c50cb863c9a7ede51d
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+29640c57b5f92febba0e40c50cb863c9a7ede51d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing grsouza/rgbem
[INFO] finished frobbing grsouza/rgbem
[INFO] frobbed toml for grsouza/rgbem written to work/ex/pr-57745/sources/master#f613dc138b4012cf3d2eb40718fbcc7cf0a34039/gh/grsouza/rgbem/Cargo.toml
[INFO] started frobbing grsouza/rgbem
[INFO] finished frobbing grsouza/rgbem
[INFO] frobbed toml for grsouza/rgbem written to work/ex/pr-57745/sources/try#29640c57b5f92febba0e40c50cb863c9a7ede51d/gh/grsouza/rgbem/Cargo.toml
[INFO] crate grsouza/rgbem has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+f613dc138b4012cf3d2eb40718fbcc7cf0a34039-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+29640c57b5f92febba0e40c50cb863c9a7ede51d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking grsouza/rgbem against try#29640c57b5f92febba0e40c50cb863c9a7ede51d for pr-57745
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57745/worker-5/try#29640c57b5f92febba0e40c50cb863c9a7ede51d:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57745/sources/try#29640c57b5f92febba0e40c50cb863c9a7ede51d/gh/grsouza/rgbem:/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" "+29640c57b5f92febba0e40c50cb863c9a7ede51d-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 34e681e6399be5188bd99d6577231a6639c4f5e35f904d4b429ea9ac20a5a1f8
[INFO] running `"docker" "start" "-a" "34e681e6399be5188bd99d6577231a6639c4f5e35f904d4b429ea9ac20a5a1f8"`
[INFO] [stderr]     Checking rgb v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std::fmt`
[INFO] [stderr]  --> src/memory.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::fmt;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::fmt`
[INFO] [stderr]  --> src/memory.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::fmt;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `location`
[INFO] [stderr]   --> src/memory.rs:20:26
[INFO] [stderr]    |
[INFO] [stderr] 20 |   pub fn read(&mut self, location: usize) {}
[INFO] [stderr]    |                          ^^^^^^^^ help: consider using `_location` instead
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `value`
[INFO] [stderr]   --> src/memory.rs:21:27
[INFO] [stderr]    |
[INFO] [stderr] 21 |   pub fn write(&mut self, value: usize, location: usize) {}
[INFO] [stderr]    |                           ^^^^^ help: consider using `_value` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `location`
[INFO] [stderr]   --> src/memory.rs:21:41
[INFO] [stderr]    |
[INFO] [stderr] 21 |   pub fn write(&mut self, value: usize, location: usize) {}
[INFO] [stderr]    |                                         ^^^^^^^^ help: consider using `_location` instead
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `memory`
[INFO] [stderr]  --> src/cpu.rs:4:3
[INFO] [stderr]   |
[INFO] [stderr] 4 |   memory: Memory,
[INFO] [stderr]   |   ^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `kind`
[INFO] [stderr]    --> src/cpu.rs:154:3
[INFO] [stderr]     |
[INFO] [stderr] 154 |   kind: InstructionKind,
[INFO] [stderr]     |   ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `assembly`
[INFO] [stderr]    --> src/cpu.rs:155:3
[INFO] [stderr]     |
[INFO] [stderr] 155 |   assembly: &'static str,
[INFO] [stderr]     |   ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `rom`
[INFO] [stderr]  --> src/memory.rs:6:3
[INFO] [stderr]   |
[INFO] [stderr] 6 |   rom: Vec<u8>,
[INFO] [stderr]   |   ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `read`
[INFO] [stderr]   --> src/memory.rs:20:3
[INFO] [stderr]    |
[INFO] [stderr] 20 |   pub fn read(&mut self, location: usize) {}
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `write`
[INFO] [stderr]   --> src/memory.rs:21:3
[INFO] [stderr]    |
[INFO] [stderr] 21 |   pub fn write(&mut self, value: usize, location: usize) {}
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `cpu`
[INFO] [stderr]   --> src/main.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 |     cpu: CPU,
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `location`
[INFO] [stderr]   --> src/memory.rs:20:26
[INFO] [stderr]    |
[INFO] [stderr] 20 |   pub fn read(&mut self, location: usize) {}
[INFO] [stderr]    |                          ^^^^^^^^ help: consider using `_location` instead
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `value`
[INFO] [stderr]   --> src/memory.rs:21:27
[INFO] [stderr]    |
[INFO] [stderr] 21 |   pub fn write(&mut self, value: usize, location: usize) {}
[INFO] [stderr]    |                           ^^^^^ help: consider using `_value` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `location`
[INFO] [stderr]   --> src/memory.rs:21:41
[INFO] [stderr]    |
[INFO] [stderr] 21 |   pub fn write(&mut self, value: usize, location: usize) {}
[INFO] [stderr]    |                                         ^^^^^^^^ help: consider using `_location` instead
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `memory`
[INFO] [stderr]  --> src/cpu.rs:4:3
[INFO] [stderr]   |
[INFO] [stderr] 4 |   memory: Memory,
[INFO] [stderr]   |   ^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `kind`
[INFO] [stderr]    --> src/cpu.rs:154:3
[INFO] [stderr]     |
[INFO] [stderr] 154 |   kind: InstructionKind,
[INFO] [stderr]     |   ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `assembly`
[INFO] [stderr]    --> src/cpu.rs:155:3
[INFO] [stderr]     |
[INFO] [stderr] 155 |   assembly: &'static str,
[INFO] [stderr]     |   ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `rom`
[INFO] [stderr]  --> src/memory.rs:6:3
[INFO] [stderr]   |
[INFO] [stderr] 6 |   rom: Vec<u8>,
[INFO] [stderr]   |   ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `read`
[INFO] [stderr]   --> src/memory.rs:20:3
[INFO] [stderr]    |
[INFO] [stderr] 20 |   pub fn read(&mut self, location: usize) {}
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `write`
[INFO] [stderr]   --> src/memory.rs:21:3
[INFO] [stderr]    |
[INFO] [stderr] 21 |   pub fn write(&mut self, value: usize, location: usize) {}
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `cpu`
[INFO] [stderr]   --> src/main.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 |     cpu: CPU,
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.61s
[INFO] running `"docker" "inspect" "34e681e6399be5188bd99d6577231a6639c4f5e35f904d4b429ea9ac20a5a1f8"`
[INFO] running `"docker" "rm" "-f" "34e681e6399be5188bd99d6577231a6639c4f5e35f904d4b429ea9ac20a5a1f8"`
[INFO] [stdout] 34e681e6399be5188bd99d6577231a6639c4f5e35f904d4b429ea9ac20a5a1f8