[INFO] cloning repository https://github.com/berwyn/ferroboy
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/berwyn/ferroboy" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fberwyn%2Fferroboy", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fberwyn%2Fferroboy'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5eb699c0ce44fae9cf42b35051f48647c5913bdc
[INFO] checking berwyn/ferroboy against master#a836d9b6413d9d593be6c09463ff8c4c70e56599 for pr-84037
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fberwyn%2Fferroboy" "/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/berwyn/ferroboy on toolchain a836d9b6413d9d593be6c09463ff8c4c70e56599
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a836d9b6413d9d593be6c09463ff8c4c70e56599" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/berwyn/ferroboy
[INFO] finished tweaking git repo https://github.com/berwyn/ferroboy
[INFO] tweaked toml for git repo https://github.com/berwyn/ferroboy written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/berwyn/ferroboy already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a836d9b6413d9d593be6c09463ff8c4c70e56599" "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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+a836d9b6413d9d593be6c09463ff8c4c70e56599" "metadata" "--no-deps" "--format-version=1", 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] 87645303d5d6d95c44db053129bacac8ec7bdd488015d6504a59720b617063b0
[INFO] running `Command { std: "docker" "start" "-a" "87645303d5d6d95c44db053129bacac8ec7bdd488015d6504a59720b617063b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "87645303d5d6d95c44db053129bacac8ec7bdd488015d6504a59720b617063b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "87645303d5d6d95c44db053129bacac8ec7bdd488015d6504a59720b617063b0", kill_on_drop: false }`
[INFO] [stdout] 87645303d5d6d95c44db053129bacac8ec7bdd488015d6504a59720b617063b0
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+a836d9b6413d9d593be6c09463ff8c4c70e56599" "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] 1efd7166ba5653ecce7cebe06e0f756ff75682227968c98efc474a36c8dfd1bf
[INFO] running `Command { std: "docker" "start" "-a" "1efd7166ba5653ecce7cebe06e0f756ff75682227968c98efc474a36c8dfd1bf", kill_on_drop: false }`
[INFO] [stderr] Compiling syn v1.0.54
[INFO] [stderr] Checking adler v0.2.3
[INFO] [stderr] Compiling eyre v0.6.5
[INFO] [stderr] Checking gimli v0.22.0
[INFO] [stderr] Checking pico-args v0.4.0
[INFO] [stderr] Checking itoa v0.4.6
[INFO] [stderr] Checking rustc-demangle v0.1.16
[INFO] [stderr] Checking ansi_term v0.11.0
[INFO] [stderr] Checking diff v0.1.12
[INFO] [stderr] Checking indenter v0.3.0
[INFO] [stderr] Checking tracing-core v0.1.14
[INFO] [stderr] Checking sharded-slab v0.0.9
[INFO] [stderr] Checking regex-automata v0.1.9
[INFO] [stderr] Checking dirs v1.0.5
[INFO] [stderr] Checking libretro-sys v0.1.1
[INFO] [stderr] Checking miniz_oxide v0.4.0
[INFO] [stderr] Checking pretty_assertions v0.7.2
[INFO] [stderr] Checking term v0.5.2
[INFO] [stderr] Checking bstr v0.2.13
[INFO] [stderr] Checking libretro-backend v0.2.1
[INFO] [stderr] Checking tracing-subscriber v0.2.11
[INFO] [stderr] Checking csv v1.1.3
[INFO] [stderr] Checking prettytable-rs v0.8.0
[INFO] [stderr] Checking addr2line v0.13.0
[INFO] [stderr] Checking backtrace v0.3.50
[INFO] [stderr] Compiling thiserror-impl v1.0.24
[INFO] [stderr] Compiling tracing-attributes v0.1.11
[INFO] [stderr] Checking thiserror v1.0.24
[INFO] [stderr] Checking ferroboy v0.1.0 (/opt/rustwide/workdir/ferroboy)
[INFO] [stdout] warning: field is never read: `cartridge`
[INFO] [stdout] --> ferroboy/src/system/mmu.rs:16:5
[INFO] [stdout] |
[INFO] [stdout] 16 | cartridge: Rc