[INFO] cloning repository https://github.com/jonlamb-gh/rpi4-rust-workspace
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jonlamb-gh/rpi4-rust-workspace" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjonlamb-gh%2Frpi4-rust-workspace", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjonlamb-gh%2Frpi4-rust-workspace'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d3060d2b198673b4b1db1115da559632d5cb6b34
[INFO] testing jonlamb-gh/rpi4-rust-workspace against master#99e3aef02079e9c10583638520cd0c134dc3a01d for pr-85530
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjonlamb-gh%2Frpi4-rust-workspace" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jonlamb-gh/rpi4-rust-workspace on toolchain 99e3aef02079e9c10583638520cd0c134dc3a01d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-1/source/.cargo/config
[INFO] removed /workspace/builds/worker-1/source/rust-toolchain
[INFO] started tweaking git repo https://github.com/jonlamb-gh/rpi4-rust-workspace
[INFO] finished tweaking git repo https://github.com/jonlamb-gh/rpi4-rust-workspace
[INFO] tweaked toml for git repo https://github.com/jonlamb-gh/rpi4-rust-workspace written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/jonlamb-gh/rpi4-rust-workspace already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "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] 09540a8bcc9d413ae01401492ca030c9454ef016101e6b6f78cabf6a4be09e39
[INFO] running `Command { std: "docker" "start" "-a" "09540a8bcc9d413ae01401492ca030c9454ef016101e6b6f78cabf6a4be09e39", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "09540a8bcc9d413ae01401492ca030c9454ef016101e6b6f78cabf6a4be09e39", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "09540a8bcc9d413ae01401492ca030c9454ef016101e6b6f78cabf6a4be09e39", kill_on_drop: false }`
[INFO] [stdout] 09540a8bcc9d413ae01401492ca030c9454ef016101e6b6f78cabf6a4be09e39
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 39eeabe13d79fc31e650e052c364167405cbbe1b9a37090cc4641aa7d8472253
[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" "39eeabe13d79fc31e650e052c364167405cbbe1b9a37090cc4641aa7d8472253", kill_on_drop: false }`
[INFO] [stderr]    Compiling typenum v1.11.2
[INFO] [stderr]    Compiling proc-macro2 v1.0.10
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling syn v1.0.17
[INFO] [stderr]    Compiling proc-macro-hack v0.5.15
[INFO] [stderr]    Compiling tock-registers v0.5.0
[INFO] [stderr]    Compiling static_assertions v1.1.0
[INFO] [stderr]    Compiling bitfield v0.13.2
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling nb v0.1.2
[INFO] [stderr]    Compiling r0 v0.2.2
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling stable_deref_trait v1.1.1
[INFO] [stderr]    Compiling heapless v0.5.3
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/tock-registers-0.5.0/src/lib.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | #![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] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling cc v1.0.50
[INFO] [stderr]    Compiling version_check v0.9.1
[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 `tock-registers`
[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" "39eeabe13d79fc31e650e052c364167405cbbe1b9a37090cc4641aa7d8472253", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "39eeabe13d79fc31e650e052c364167405cbbe1b9a37090cc4641aa7d8472253", kill_on_drop: false }`
[INFO] [stdout] 39eeabe13d79fc31e650e052c364167405cbbe1b9a37090cc4641aa7d8472253