[INFO] cloning repository https://github.com/intermezzOS/bare-bones
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/intermezzOS/bare-bones" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FintermezzOS%2Fbare-bones", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FintermezzOS%2Fbare-bones'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 681186521220bfa528dd03a053cee0be1c93cb3d
[INFO] checking intermezzOS/bare-bones against master#a609fb45efad59dfd459c76e50899be9f0583b5a for pr-80579
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FintermezzOS%2Fbare-bones" "/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/intermezzOS/bare-bones on toolchain a609fb45efad59dfd459c76e50899be9f0583b5a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/intermezzOS/bare-bones
[INFO] removed workspace from git repo https://github.com/intermezzOS/bare-bones
[INFO] finished tweaking git repo https://github.com/intermezzOS/bare-bones
[INFO] tweaked toml for git repo https://github.com/intermezzOS/bare-bones written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/intermezzOS/bare-bones already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "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] 0be7d33dd4fcc9efe93f90a3a9c72f4bcb8c57e5db67ea965130746b22389201
[INFO] running `Command { std: "docker" "start" "-a" "0be7d33dd4fcc9efe93f90a3a9c72f4bcb8c57e5db67ea965130746b22389201", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0be7d33dd4fcc9efe93f90a3a9c72f4bcb8c57e5db67ea965130746b22389201", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0be7d33dd4fcc9efe93f90a3a9c72f4bcb8c57e5db67ea965130746b22389201", kill_on_drop: false }`
[INFO] [stdout] 0be7d33dd4fcc9efe93f90a3a9c72f4bcb8c57e5db67ea965130746b22389201
[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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "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] f826e59eb2b87ce309c7599b6c9fccfd4ea60dca4fcadf4cd3f5187b33d748f2
[INFO] running `Command { std: "docker" "start" "-a" "f826e59eb2b87ce309c7599b6c9fccfd4ea60dca4fcadf4cd3f5187b33d748f2", kill_on_drop: false }`
[INFO] [stderr]    Compiling intermezzos v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0522]: definition of an unknown language item: `panic_fmt`
[INFO] [stdout]  --> src/panic.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #[lang = "panic_fmt"]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^ definition of unknown language item `panic_fmt`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `#[panic_handler]` function required, but not found
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0522`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `intermezzos`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "f826e59eb2b87ce309c7599b6c9fccfd4ea60dca4fcadf4cd3f5187b33d748f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f826e59eb2b87ce309c7599b6c9fccfd4ea60dca4fcadf4cd3f5187b33d748f2", kill_on_drop: false }`
[INFO] [stdout] f826e59eb2b87ce309c7599b6c9fccfd4ea60dca4fcadf4cd3f5187b33d748f2