[INFO] cloning repository https://github.com/mobad/rustichip8
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mobad/rustichip8" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmobad%2Frustichip8", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmobad%2Frustichip8'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 778422dc53a549eb27bbcb8b7c4bcd044e2c65f2
[INFO] checking mobad/rustichip8 against try#f47dd4da3ae8c32c9e65d307bfe640b143e674df for pr-77526
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmobad%2Frustichip8" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mobad/rustichip8 on toolchain f47dd4da3ae8c32c9e65d307bfe640b143e674df
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mobad/rustichip8
[INFO] finished tweaking git repo https://github.com/mobad/rustichip8
[INFO] tweaked toml for git repo https://github.com/mobad/rustichip8 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/mobad/rustichip8 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3024a030ffeef4ec071ad4e2529fc197544763581c142acfd801484c8f7f1ff8
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "3024a030ffeef4ec071ad4e2529fc197544763581c142acfd801484c8f7f1ff8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3024a030ffeef4ec071ad4e2529fc197544763581c142acfd801484c8f7f1ff8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3024a030ffeef4ec071ad4e2529fc197544763581c142acfd801484c8f7f1ff8", kill_on_drop: false }`
[INFO] [stdout] 3024a030ffeef4ec071ad4e2529fc197544763581c142acfd801484c8f7f1ff8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 3583ee2cc4ab5d9959685986539c58de865faf342bb5afbe5fab8bccd0b6c39a
[INFO] running `Command { std: "docker" "start" "-a" "3583ee2cc4ab5d9959685986539c58de865faf342bb5afbe5fab8bccd0b6c39a", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v0.1.2
[INFO] [stderr]    Compiling libc v0.2.51
[INFO] [stderr]     Checking rand_jitter v0.1.3
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking termion v1.5.1
[INFO] [stderr]     Checking rustichip8 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `vx`
[INFO] [stdout]    --> src/main.rs:200:19
[INFO] [stdout]     |
[INFO] [stdout] 200 |             (0xE, vx, 0x9, 0xE) => {
[INFO] [stdout]     |                   ^^ help: if this is intentional, prefix it with an underscore: `_vx`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `vx`
[INFO] [stdout]    --> src/main.rs:207:19
[INFO] [stdout]     |
[INFO] [stdout] 207 |             (0xE, vx, 0xA, 0x1) => {
[INFO] [stdout]     |                   ^^ help: if this is intentional, prefix it with an underscore: `_vx`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `vx`
[INFO] [stdout]    --> src/main.rs:200:19
[INFO] [stdout]     |
[INFO] [stdout] 200 |             (0xE, vx, 0x9, 0xE) => {
[INFO] [stdout]     |                   ^^ help: if this is intentional, prefix it with an underscore: `_vx`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `vx`
[INFO] [stdout]    --> src/main.rs:207:19
[INFO] [stdout]     |
[INFO] [stdout] 207 |             (0xE, vx, 0xA, 0x1) => {
[INFO] [stdout]     |                   ^^ help: if this is intentional, prefix it with an underscore: `_vx`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.63s
[INFO] running `Command { std: "docker" "inspect" "3583ee2cc4ab5d9959685986539c58de865faf342bb5afbe5fab8bccd0b6c39a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3583ee2cc4ab5d9959685986539c58de865faf342bb5afbe5fab8bccd0b6c39a", kill_on_drop: false }`
[INFO] [stdout] 3583ee2cc4ab5d9959685986539c58de865faf342bb5afbe5fab8bccd0b6c39a