[INFO] cloning repository https://github.com/RusPiRo/ruspiro-gpio
[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-gpio" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRusPiRo%2Fruspiro-gpio", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRusPiRo%2Fruspiro-gpio'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 60923fdfad90277ad2babfb4070cb93a691e6bbb
[INFO] checking RusPiRo/ruspiro-gpio against try#3bb2879ea9e58d65b875f9a98df44f4a43ce2597 for pr-85387
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRusPiRo%2Fruspiro-gpio" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/RusPiRo/ruspiro-gpio on toolchain 3bb2879ea9e58d65b875f9a98df44f4a43ce2597
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3bb2879ea9e58d65b875f9a98df44f4a43ce2597" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-5/source/.cargo/config.toml
[INFO] removed /workspace/builds/worker-5/source/rust-toolchain.toml
[INFO] started tweaking git repo https://github.com/RusPiRo/ruspiro-gpio
[INFO] finished tweaking git repo https://github.com/RusPiRo/ruspiro-gpio
[INFO] tweaked toml for git repo https://github.com/RusPiRo/ruspiro-gpio written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3bb2879ea9e58d65b875f9a98df44f4a43ce2597" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Updating git repository `https://github.com/RusPiRo/ruspiro-mmio-register.git`
[INFO] [stderr]     Updating git repository `https://github.com/RusPiRo/ruspiro-singleton.git`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3bb2879ea9e58d65b875f9a98df44f4a43ce2597" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ruspiro-interrupt-macros v0.3.2
[INFO] [stderr]   Downloaded ruspiro-interrupt v0.4.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+3bb2879ea9e58d65b875f9a98df44f4a43ce2597" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f3c660a47b91b26d22f34841a181b09facd23b57ea73f9be97218ffd22f6e5b0
[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" "f3c660a47b91b26d22f34841a181b09facd23b57ea73f9be97218ffd22f6e5b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f3c660a47b91b26d22f34841a181b09facd23b57ea73f9be97218ffd22f6e5b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f3c660a47b91b26d22f34841a181b09facd23b57ea73f9be97218ffd22f6e5b0", kill_on_drop: false }`
[INFO] [stdout] f3c660a47b91b26d22f34841a181b09facd23b57ea73f9be97218ffd22f6e5b0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+3bb2879ea9e58d65b875f9a98df44f4a43ce2597" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ca45712289fb476433cd692eb16c9f1bef51673a74cd7c862fa622a6eae17d0e
[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" "ca45712289fb476433cd692eb16c9f1bef51673a74cd7c862fa622a6eae17d0e", kill_on_drop: false }`
[INFO] [stderr]     Checking ruspiro-register v0.5.4
[INFO] [stderr]    Compiling ruspiro-interrupt v0.4.3
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]     Checking ruspiro-singleton v0.4.2 (https://github.com/RusPiRo/ruspiro-singleton.git?branch=development#3c6d7978)
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> /opt/rustwide/cargo-home/git/checkouts/ruspiro-singleton-8e623266ed8a5fed/3c6d797/src/lib.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 | #![feature(const_fn)]
[INFO] [stdout]   |            ^^^^^^^^ feature has been removed
[INFO] [stdout]   |
[INFO] [stdout]   = note: split into finer-grained feature gates
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0557`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ruspiro-singleton`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "ca45712289fb476433cd692eb16c9f1bef51673a74cd7c862fa622a6eae17d0e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ca45712289fb476433cd692eb16c9f1bef51673a74cd7c862fa622a6eae17d0e", kill_on_drop: false }`
[INFO] [stdout] ca45712289fb476433cd692eb16c9f1bef51673a74cd7c862fa622a6eae17d0e