[INFO] updating cached repository https://github.com/yoctoctet/chip8-dasm
[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] 0691dd17e937b131c44f60aed1ef3c985f73c083
[INFO] checking yoctoctet/chip8-dasm against master#2748a9fd93dd1a00a4521f4f16de5befbf77f6cd for pr-62262-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyoctoctet%2Fchip8-dasm" "/workspace/builds/worker-8/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/yoctoctet/chip8-dasm on toolchain 2748a9fd93dd1a00a4521f4f16de5befbf77f6cd
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/yoctoctet/chip8-dasm
[INFO] finished tweaking git repo https://github.com/yoctoctet/chip8-dasm
[INFO] tweaked toml for git repo https://github.com/yoctoctet/chip8-dasm written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/yoctoctet/chip8-dasm already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "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-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "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] 513e6e1162725f9cd522437a2a508876b58b84e87b258b3b0c79a7346cba0517
[INFO] running `"docker" "start" "-a" "513e6e1162725f9cd522437a2a508876b58b84e87b258b3b0c79a7346cba0517"`
[INFO] [stderr]     Checking chip8-dasm v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `disassembler::disassemble`
[INFO] [stderr]  --> src/main.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use disassembler::disassemble;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `disassembler::disassemble`
[INFO] [stderr]  --> src/main.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use disassembler::disassemble;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `y`
[INFO] [stderr]    --> src/op.rs:153:42
[INFO] [stderr]     |
[INFO] [stderr] 153 |                     Operation::Op8xy6(x, y) => {
[INFO] [stderr]     |                                          ^ help: consider prefixing with an underscore: `_y`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `y`
[INFO] [stderr]    --> src/op.rs:161:42
[INFO] [stderr]     |
[INFO] [stderr] 161 |                     Operation::Op8xyE(x, y) => {
[INFO] [stderr]     |                                          ^ help: consider prefixing with an underscore: `_y`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `y`
[INFO] [stderr]    --> src/op.rs:153:42
[INFO] [stderr]     |
[INFO] [stderr] 153 |                     Operation::Op8xy6(x, y) => {
[INFO] [stderr]     |                                          ^ help: consider prefixing with an underscore: `_y`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `y`
[INFO] [stderr]    --> src/op.rs:161:42
[INFO] [stderr]     |
[INFO] [stderr] 161 |                     Operation::Op8xyE(x, y) => {
[INFO] [stderr]     |                                          ^ help: consider prefixing with an underscore: `_y`
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `DisassemblerError`
[INFO] [stderr]   --> src/disassembler.rs:41:5
[INFO] [stderr]    |
[INFO] [stderr] 41 |     DisassemblerError,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `DisassemblerError`
[INFO] [stderr]   --> src/disassembler.rs:41:5
[INFO] [stderr]    |
[INFO] [stderr] 41 |     DisassemblerError,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.84s
[INFO] running `"docker" "inspect" "513e6e1162725f9cd522437a2a508876b58b84e87b258b3b0c79a7346cba0517"`
[INFO] running `"docker" "rm" "-f" "513e6e1162725f9cd522437a2a508876b58b84e87b258b3b0c79a7346cba0517"`
[INFO] [stdout] 513e6e1162725f9cd522437a2a508876b58b84e87b258b3b0c79a7346cba0517