[INFO] cloning repository https://github.com/vismbs/CHIP8.rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/vismbs/CHIP8.rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvismbs%2FCHIP8.rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvismbs%2FCHIP8.rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6f718b56b27ffa581e7eb3685c8be337c663b94a
[INFO] checking vismbs/CHIP8.rs against try#9d63f825c0d409b0e1743a2c84b33f86965e5929 for pr-136968
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvismbs%2FCHIP8.rs" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/vismbs/CHIP8.rs on toolchain 9d63f825c0d409b0e1743a2c84b33f86965e5929
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9d63f825c0d409b0e1743a2c84b33f86965e5929" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/vismbs/CHIP8.rs
[INFO] finished tweaking git repo https://github.com/vismbs/CHIP8.rs
[INFO] tweaked toml for git repo https://github.com/vismbs/CHIP8.rs written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/vismbs/CHIP8.rs 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" "+9d63f825c0d409b0e1743a2c84b33f86965e5929" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+9d63f825c0d409b0e1743a2c84b33f86965e5929" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] db80263efc424eb91e296c0a20eab878c835041c94f270b50fc87ba057d13bd8
[INFO] running `Command { std: "docker" "start" "-a" "db80263efc424eb91e296c0a20eab878c835041c94f270b50fc87ba057d13bd8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "db80263efc424eb91e296c0a20eab878c835041c94f270b50fc87ba057d13bd8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "db80263efc424eb91e296c0a20eab878c835041c94f270b50fc87ba057d13bd8", kill_on_drop: false }`
[INFO] [stdout] db80263efc424eb91e296c0a20eab878c835041c94f270b50fc87ba057d13bd8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+9d63f825c0d409b0e1743a2c84b33f86965e5929" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d7be29e9625c4f8ed1e0d153abbc8c3179ab93f957a4686ec8069c77c40e9910
[INFO] running `Command { std: "docker" "start" "-a" "d7be29e9625c4f8ed1e0d153abbc8c3179ab93f957a4686ec8069c77c40e9910", kill_on_drop: false }`
[INFO] [stderr]     Checking chip8rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: method `read_bytes` is never used
[INFO] [stdout]   --> src/ram.rs:39:12
[INFO] [stdout]    |
[INFO] [stdout] 5  | impl Ram {
[INFO] [stdout]    | -------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 39 |     pub fn read_bytes(&mut self, address: u16) -> u8{
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `read_bytes` is never used
[INFO] [stdout]   --> src/ram.rs:39:12
[INFO] [stdout]    |
[INFO] [stdout] 5  | impl Ram {
[INFO] [stdout]    | -------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 39 |     pub fn read_bytes(&mut self, address: u16) -> u8{
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.15s
[INFO] running `Command { std: "docker" "inspect" "d7be29e9625c4f8ed1e0d153abbc8c3179ab93f957a4686ec8069c77c40e9910", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d7be29e9625c4f8ed1e0d153abbc8c3179ab93f957a4686ec8069c77c40e9910", kill_on_drop: false }`
[INFO] [stdout] d7be29e9625c4f8ed1e0d153abbc8c3179ab93f957a4686ec8069c77c40e9910