[INFO] cloning repository https://github.com/dpl0/gemub
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dpl0/gemub" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdpl0%2Fgemub", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdpl0%2Fgemub'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 995f0dc826083ddd164f31a441ebddbdd48c92b3
[INFO] checking dpl0/gemub against try#81275a1445c7502a974118e0c69b795ab60be991 for pr-80243
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdpl0%2Fgemub" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dpl0/gemub on toolchain 81275a1445c7502a974118e0c69b795ab60be991
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+81275a1445c7502a974118e0c69b795ab60be991" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/dpl0/gemub
[INFO] finished tweaking git repo https://github.com/dpl0/gemub
[INFO] tweaked toml for git repo https://github.com/dpl0/gemub written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/dpl0/gemub already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+81275a1445c7502a974118e0c69b795ab60be991" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+81275a1445c7502a974118e0c69b795ab60be991" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] aa41a4e49e3af9ca50ba7d414944a4a901203b3e5774debd5b0cbb810f89de47
[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" "aa41a4e49e3af9ca50ba7d414944a4a901203b3e5774debd5b0cbb810f89de47", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "aa41a4e49e3af9ca50ba7d414944a4a901203b3e5774debd5b0cbb810f89de47", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aa41a4e49e3af9ca50ba7d414944a4a901203b3e5774debd5b0cbb810f89de47", kill_on_drop: false }`
[INFO] [stdout] aa41a4e49e3af9ca50ba7d414944a4a901203b3e5774debd5b0cbb810f89de47
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+81275a1445c7502a974118e0c69b795ab60be991" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 86424ae0e961532d0f0be5aa530801fa30fdfbae574ed82a347f37106ad9ac3d
[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" "86424ae0e961532d0f0be5aa530801fa30fdfbae574ed82a347f37106ad9ac3d", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking gemub v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `buf`
[INFO] [stdout]   --> src/gameboy/bus.rs:59:13
[INFO] [stdout]    |
[INFO] [stdout] 59 |         let buf = buf; // Shadow into an inmutable Copy.
[INFO] [stdout]    |             ^^^ help: if this is intentional, prefix it with an underscore: `_buf`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `ram`
[INFO] [stdout]   --> src/gameboy/bus.rs:48:5
[INFO] [stdout]    |
[INFO] [stdout] 48 |     ram: Box<Vec<u8>>, // Store memory in heap.
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `buf`
[INFO] [stdout]   --> src/gameboy/bus.rs:59:13
[INFO] [stdout]    |
[INFO] [stdout] 59 |         let buf = buf; // Shadow into an inmutable Copy.
[INFO] [stdout]    |             ^^^ help: if this is intentional, prefix it with an underscore: `_buf`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `ram`
[INFO] [stdout]   --> src/gameboy/bus.rs:48:5
[INFO] [stdout]    |
[INFO] [stdout] 48 |     ram: Box<Vec<u8>>, // Store memory in heap.
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.00s
[INFO] running `Command { std: "docker" "inspect" "86424ae0e961532d0f0be5aa530801fa30fdfbae574ed82a347f37106ad9ac3d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "86424ae0e961532d0f0be5aa530801fa30fdfbae574ed82a347f37106ad9ac3d", kill_on_drop: false }`
[INFO] [stdout] 86424ae0e961532d0f0be5aa530801fa30fdfbae574ed82a347f37106ad9ac3d