[INFO] cloning repository https://github.com/austinprete/chipper
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/austinprete/chipper" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faustinprete%2Fchipper", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faustinprete%2Fchipper'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ae862f615b157d310ddac87ffdf5ebddccd16dc4
[INFO] checking austinprete/chipper against try#b20a093d9fb1ffaa04ae9852cb034864a992bafd for pr-85073
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faustinprete%2Fchipper" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/austinprete/chipper on toolchain b20a093d9fb1ffaa04ae9852cb034864a992bafd
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b20a093d9fb1ffaa04ae9852cb034864a992bafd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/austinprete/chipper
[INFO] finished tweaking git repo https://github.com/austinprete/chipper
[INFO] tweaked toml for git repo https://github.com/austinprete/chipper written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/austinprete/chipper already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b20a093d9fb1ffaa04ae9852cb034864a992bafd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded wayland-commons v0.27.0
[INFO] [stderr]   Downloaded wayland-cursor v0.27.0
[INFO] [stderr]   Downloaded wayland-client v0.27.0
[INFO] [stderr]   Downloaded xkb v0.2.1
[INFO] [stderr]   Downloaded minifb v0.19.2
[INFO] [stderr]   Downloaded wayland-sys v0.27.0
[INFO] [stderr]   Downloaded orbclient v0.3.27
[INFO] [stderr]   Downloaded wayland-scanner v0.27.0
[INFO] [stderr]   Downloaded xkbcommon-sys v0.7.5
[INFO] [stderr]   Downloaded wayland-protocols v0.27.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+b20a093d9fb1ffaa04ae9852cb034864a992bafd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 029495c812c0e54e2cfcaafeb250e8d28eff6d97809e61eb2b1b550d285c2ed7
[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" "029495c812c0e54e2cfcaafeb250e8d28eff6d97809e61eb2b1b550d285c2ed7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "029495c812c0e54e2cfcaafeb250e8d28eff6d97809e61eb2b1b550d285c2ed7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "029495c812c0e54e2cfcaafeb250e8d28eff6d97809e61eb2b1b550d285c2ed7", kill_on_drop: false }`
[INFO] [stdout] 029495c812c0e54e2cfcaafeb250e8d28eff6d97809e61eb2b1b550d285c2ed7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+b20a093d9fb1ffaa04ae9852cb034864a992bafd" "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] ef1275f814e2fc3b69236df93a4e76885822604decbcff8b9f328ee5bde3c7bf
[INFO] running `Command { std: "docker" "start" "-a" "ef1275f814e2fc3b69236df93a4e76885822604decbcff8b9f328ee5bde3c7bf", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.71
[INFO] [stderr]    Compiling proc-macro2 v1.0.18
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling xml-rs v0.8.3
[INFO] [stderr]    Compiling regex-syntax v0.6.22
[INFO] [stderr]    Compiling humantime v2.1.0
[INFO] [stderr]    Compiling nix v0.17.0
[INFO] [stderr]    Compiling bindgen v0.56.0
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]    Compiling lazycell v1.3.0
[INFO] [stderr]     Checking smallvec v1.4.0
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]     Checking downcast-rs v1.1.1
[INFO] [stderr]    Compiling cc v1.0.54
[INFO] [stderr]     Checking remove_dir_all v0.5.2
[INFO] [stderr]    Compiling clang-sys v1.1.1
[INFO] [stderr]    Compiling nom v5.1.2
[INFO] [stderr]    Compiling thread_local v1.1.0
[INFO] [stderr]    Compiling wayland-sys v0.27.0
[INFO] [stderr]    Compiling nom v6.1.2
[INFO] [stderr]    Compiling x11-dl v2.18.5
[INFO] [stderr]    Compiling libloading v0.7.0
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling aho-corasick v0.7.15
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling minifb v0.19.2
[INFO] [stderr]    Compiling wayland-scanner v0.27.0
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling which v3.1.1
[INFO] [stderr]     Checking getrandom v0.1.14
[INFO] [stderr]     Checking raw-window-handle v0.3.3
[INFO] [stderr]     Checking xcursor v0.3.3
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]    Compiling regex v1.4.3
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]    Compiling wayland-client v0.27.0
[INFO] [stderr]    Compiling wayland-protocols v0.27.0
[INFO] [stderr]    Compiling cexpr v0.4.0
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]    Compiling env_logger v0.8.3
[INFO] [stderr]     Checking wayland-commons v0.27.0
[INFO] [stderr]     Checking wayland-cursor v0.27.0
[INFO] [stderr]    Compiling xkbcommon-sys v0.7.5
[INFO] [stderr]     Checking xkb v0.2.1
[INFO] [stderr]     Checking chipper v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `sound_timer`
[INFO] [stdout]   --> src/cpu.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 21 |     sound_timer: u8,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `sound_timer`
[INFO] [stdout]   --> src/cpu.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 21 |     sound_timer: u8,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 07s
[INFO] running `Command { std: "docker" "inspect" "ef1275f814e2fc3b69236df93a4e76885822604decbcff8b9f328ee5bde3c7bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ef1275f814e2fc3b69236df93a4e76885822604decbcff8b9f328ee5bde3c7bf", kill_on_drop: false }`
[INFO] [stdout] ef1275f814e2fc3b69236df93a4e76885822604decbcff8b9f328ee5bde3c7bf