[INFO] cloning repository https://github.com/RusPiRo/ruspiro-mmio-register
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/RusPiRo/ruspiro-mmio-register" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRusPiRo%2Fruspiro-mmio-register", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRusPiRo%2Fruspiro-mmio-register'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] aa378ad4ee40c8badde4403caad32a8291f8a2ec
[INFO] testing RusPiRo/ruspiro-mmio-register against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRusPiRo%2Fruspiro-mmio-register" "/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/RusPiRo/ruspiro-mmio-register on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-4/source/.cargo/config.toml
[INFO] started tweaking git repo https://github.com/RusPiRo/ruspiro-mmio-register
[INFO] finished tweaking git repo https://github.com/RusPiRo/ruspiro-mmio-register
[INFO] tweaked toml for git repo https://github.com/RusPiRo/ruspiro-mmio-register written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/RusPiRo/ruspiro-mmio-register already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 57483f9f609c7d5cdc1b8e2301d3a2a5ea2e891138d8b7f38ea4a5f924f63cb4
[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" "57483f9f609c7d5cdc1b8e2301d3a2a5ea2e891138d8b7f38ea4a5f924f63cb4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "57483f9f609c7d5cdc1b8e2301d3a2a5ea2e891138d8b7f38ea4a5f924f63cb4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "57483f9f609c7d5cdc1b8e2301d3a2a5ea2e891138d8b7f38ea4a5f924f63cb4", kill_on_drop: false }`
[INFO] [stdout] 57483f9f609c7d5cdc1b8e2301d3a2a5ea2e891138d8b7f38ea4a5f924f63cb4
[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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b06455f0148c21806efd7b979e1385ee82f262476496ddea9826d30cad94e4c8
[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" "b06455f0148c21806efd7b979e1385ee82f262476496ddea9826d30cad94e4c8", kill_on_drop: false }`
[INFO] [stderr]    Compiling ruspiro-register v0.5.4 (https://github.com/RusPiRo/ruspiro-register.git?branch=development#455ccee0)
[INFO] [stderr]    Compiling ruspiro-mmio-register v0.1.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.55s
[INFO] running `Command { std: "docker" "inspect" "b06455f0148c21806efd7b979e1385ee82f262476496ddea9826d30cad94e4c8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b06455f0148c21806efd7b979e1385ee82f262476496ddea9826d30cad94e4c8", kill_on_drop: false }`
[INFO] [stdout] b06455f0148c21806efd7b979e1385ee82f262476496ddea9826d30cad94e4c8
[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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 54351994383a60064ff24d90b06a370ea9d96834e743cd2ee3062fc3c8b7cb10
[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" "54351994383a60064ff24d90b06a370ea9d96834e743cd2ee3062fc3c8b7cb10", kill_on_drop: false }`
[INFO] [stderr]    Compiling ruspiro-mmio-register v0.1.3 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]   --> src/lib.rs:10:27
[INFO] [stdout]    |
[INFO] [stdout] 10 | #![cfg_attr(test, feature(const_raw_ptr_to_usize_cast))]
[INFO] [stdout]    |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^ feature has been removed
[INFO] [stdout]    |
[INFO] [stdout]    = note: at compile-time, pointers do not have an integer value, so these casts cannot be properly supported
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> src/lib.rs:10:19
[INFO] [stdout]    |
[INFO] [stdout] 10 | #![cfg_attr(test, feature(const_raw_ptr_to_usize_cast))]
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0554, E0557.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ruspiro-mmio-register` due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "54351994383a60064ff24d90b06a370ea9d96834e743cd2ee3062fc3c8b7cb10", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "54351994383a60064ff24d90b06a370ea9d96834e743cd2ee3062fc3c8b7cb10", kill_on_drop: false }`
[INFO] [stdout] 54351994383a60064ff24d90b06a370ea9d96834e743cd2ee3062fc3c8b7cb10