[INFO] updating cached repository https://github.com/shawngiroux/rusty-chip8
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 936f1c63f6771ef5de1e638f6c0a09647ed9ebb5
[INFO] checking shawngiroux/rusty-chip8 against try#e4dba30b9b475d8750370c4dfb49b6541990904d for pr-71393
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshawngiroux%2Frusty-chip8" "/workspace/builds/worker-2/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/shawngiroux/rusty-chip8 on toolchain e4dba30b9b475d8750370c4dfb49b6541990904d
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/shawngiroux/rusty-chip8
[INFO] finished tweaking git repo https://github.com/shawngiroux/rusty-chip8
[INFO] tweaked toml for git repo https://github.com/shawngiroux/rusty-chip8 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/shawngiroux/rusty-chip8 already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 67f6eaea3675c7bdae561b488b761caa9ddf43338fb1f5a1e8cd9ed337a9e7f7
[INFO] running `"docker" "start" "-a" "67f6eaea3675c7bdae561b488b761caa9ddf43338fb1f5a1e8cd9ed337a9e7f7"`
[INFO] [stderr]     Checking rusty-chip8 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `old_V`
[INFO] [stderr]    --> src/main.rs:148:33
[INFO] [stderr]     |
[INFO] [stderr] 148 | ...                   let old_V = self.V[V_index];
[INFO] [stderr]     |                           ^^^^^ help: if this is intentional, prefix it with an underscore: `_old_V`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: structure field `V` should have a snake case name
[INFO] [stderr]   --> src/main.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 |     V: [u16; 16],
[INFO] [stderr]    |     ^ help: convert the identifier to snake case (notice the capitalization): `v`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: structure field `I` should have a snake case name
[INFO] [stderr]   --> src/main.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 18 |     I: u16,
[INFO] [stderr]    |     ^ help: convert the identifier to snake case (notice the capitalization): `i`
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:32:9
[INFO] [stderr]    |
[INFO] [stderr] 32 |         f.read_to_end(&mut buffer);
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: variable `VX` should have a snake case name
[INFO] [stderr]   --> src/main.rs:82:21
[INFO] [stderr]    |
[INFO] [stderr] 82 |                 let VX = ((self.opcode & 0x0F00) >> 8) as usize;
[INFO] [stderr]    |                     ^^ help: convert the identifier to snake case (notice the capitalization): `vx`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `VX` should have a snake case name
[INFO] [stderr]   --> src/main.rs:91:21
[INFO] [stderr]    |
[INFO] [stderr] 91 |                 let VX = ((self.opcode & 0x0F00) >> 8) as usize;
[INFO] [stderr]    |                     ^^ help: convert the identifier to snake case (notice the capitalization): `vx`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `NN` should have a snake case name
[INFO] [stderr]   --> src/main.rs:92:21
[INFO] [stderr]    |
[INFO] [stderr] 92 |                 let NN = self.opcode & 0x00FF;
[INFO] [stderr]    |                     ^^ help: convert the identifier to snake case: `nn`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `VX` should have a snake case name
[INFO] [stderr]   --> src/main.rs:98:21
[INFO] [stderr]    |
[INFO] [stderr] 98 |                 let VX = ((self.opcode & 0x0F00) >> 8) as usize;
[INFO] [stderr]    |                     ^^ help: convert the identifier to snake case (notice the capitalization): `vx`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `NN` should have a snake case name
[INFO] [stderr]   --> src/main.rs:99:21
[INFO] [stderr]    |
[INFO] [stderr] 99 |                 let NN = self.opcode & 0x00FF;
[INFO] [stderr]    |                     ^^ help: convert the identifier to snake case: `nn`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `VX` should have a snake case name
[INFO] [stderr]    --> src/main.rs:118:29
[INFO] [stderr]     |
[INFO] [stderr] 118 |                         let VX = ((self.opcode & 0x0F00) >> 8) as usize;
[INFO] [stderr]     |                             ^^ help: convert the identifier to snake case (notice the capitalization): `vx`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `VX` should have a snake case name
[INFO] [stderr]    --> src/main.rs:127:29
[INFO] [stderr]     |
[INFO] [stderr] 127 |                         let VX = ((self.opcode & 0x0F00) >> 8) as usize;
[INFO] [stderr]     |                             ^^ help: convert the identifier to snake case (notice the capitalization): `vx`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `VX` should have a snake case name
[INFO] [stderr]    --> src/main.rs:144:29
[INFO] [stderr]     |
[INFO] [stderr] 144 |                         let VX = (self.opcode & 0x0F00) >> 8;
[INFO] [stderr]     |                             ^^ help: convert the identifier to snake case (notice the capitalization): `vx`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `V_index` should have a snake case name
[INFO] [stderr]    --> src/main.rs:147:33
[INFO] [stderr]     |
[INFO] [stderr] 147 | ...                   let V_index = x as usize;
[INFO] [stderr]     |                           ^^^^^^^ help: convert the identifier to snake case (notice the capitalization): `v_index`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `old_V` should have a snake case name
[INFO] [stderr]    --> src/main.rs:148:33
[INFO] [stderr]     |
[INFO] [stderr] 148 | ...                   let old_V = self.V[V_index];
[INFO] [stderr]     |                           ^^^^^ help: convert the identifier to snake case (notice the capitalization): `old_v`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `old_V`
[INFO] [stderr]    --> src/main.rs:148:33
[INFO] [stderr]     |
[INFO] [stderr] 148 | ...                   let old_V = self.V[V_index];
[INFO] [stderr]     |                           ^^^^^ help: if this is intentional, prefix it with an underscore: `_old_V`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: structure field `V` should have a snake case name
[INFO] [stderr]   --> src/main.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 |     V: [u16; 16],
[INFO] [stderr]    |     ^ help: convert the identifier to snake case (notice the capitalization): `v`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: structure field `I` should have a snake case name
[INFO] [stderr]   --> src/main.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 18 |     I: u16,
[INFO] [stderr]    |     ^ help: convert the identifier to snake case (notice the capitalization): `i`
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:32:9
[INFO] [stderr]    |
[INFO] [stderr] 32 |         f.read_to_end(&mut buffer);
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: variable `VX` should have a snake case name
[INFO] [stderr]   --> src/main.rs:82:21
[INFO] [stderr]    |
[INFO] [stderr] 82 |                 let VX = ((self.opcode & 0x0F00) >> 8) as usize;
[INFO] [stderr]    |                     ^^ help: convert the identifier to snake case (notice the capitalization): `vx`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `VX` should have a snake case name
[INFO] [stderr]   --> src/main.rs:91:21
[INFO] [stderr]    |
[INFO] [stderr] 91 |                 let VX = ((self.opcode & 0x0F00) >> 8) as usize;
[INFO] [stderr]    |                     ^^ help: convert the identifier to snake case (notice the capitalization): `vx`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `NN` should have a snake case name
[INFO] [stderr]   --> src/main.rs:92:21
[INFO] [stderr]    |
[INFO] [stderr] 92 |                 let NN = self.opcode & 0x00FF;
[INFO] [stderr]    |                     ^^ help: convert the identifier to snake case: `nn`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `VX` should have a snake case name
[INFO] [stderr]   --> src/main.rs:98:21
[INFO] [stderr]    |
[INFO] [stderr] 98 |                 let VX = ((self.opcode & 0x0F00) >> 8) as usize;
[INFO] [stderr]    |                     ^^ help: convert the identifier to snake case (notice the capitalization): `vx`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `NN` should have a snake case name
[INFO] [stderr]   --> src/main.rs:99:21
[INFO] [stderr]    |
[INFO] [stderr] 99 |                 let NN = self.opcode & 0x00FF;
[INFO] [stderr]    |                     ^^ help: convert the identifier to snake case: `nn`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `VX` should have a snake case name
[INFO] [stderr]    --> src/main.rs:118:29
[INFO] [stderr]     |
[INFO] [stderr] 118 |                         let VX = ((self.opcode & 0x0F00) >> 8) as usize;
[INFO] [stderr]     |                             ^^ help: convert the identifier to snake case (notice the capitalization): `vx`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `VX` should have a snake case name
[INFO] [stderr]    --> src/main.rs:127:29
[INFO] [stderr]     |
[INFO] [stderr] 127 |                         let VX = ((self.opcode & 0x0F00) >> 8) as usize;
[INFO] [stderr]     |                             ^^ help: convert the identifier to snake case (notice the capitalization): `vx`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `VX` should have a snake case name
[INFO] [stderr]    --> src/main.rs:144:29
[INFO] [stderr]     |
[INFO] [stderr] 144 |                         let VX = (self.opcode & 0x0F00) >> 8;
[INFO] [stderr]     |                             ^^ help: convert the identifier to snake case (notice the capitalization): `vx`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `V_index` should have a snake case name
[INFO] [stderr]    --> src/main.rs:147:33
[INFO] [stderr]     |
[INFO] [stderr] 147 | ...                   let V_index = x as usize;
[INFO] [stderr]     |                           ^^^^^^^ help: convert the identifier to snake case (notice the capitalization): `v_index`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `old_V` should have a snake case name
[INFO] [stderr]    --> src/main.rs:148:33
[INFO] [stderr]     |
[INFO] [stderr] 148 | ...                   let old_V = self.V[V_index];
[INFO] [stderr]     |                           ^^^^^ help: convert the identifier to snake case (notice the capitalization): `old_v`
[INFO] [stderr] 
[INFO] [stderr] warning: 14 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: 14 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.65s
[INFO] running `"docker" "inspect" "67f6eaea3675c7bdae561b488b761caa9ddf43338fb1f5a1e8cd9ed337a9e7f7"`
[INFO] running `"docker" "rm" "-f" "67f6eaea3675c7bdae561b488b761caa9ddf43338fb1f5a1e8cd9ed337a9e7f7"`
[INFO] [stdout] 67f6eaea3675c7bdae561b488b761caa9ddf43338fb1f5a1e8cd9ed337a9e7f7