[INFO] cloning repository https://github.com/tyler569/cardinal
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tyler569/cardinal" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftyler569%2Fcardinal", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftyler569%2Fcardinal'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7a4f14e1bed997c9e1dc9ff0c05a84e5b9e6940b
[INFO] checking tyler569/cardinal against try#8b72f65b805cbe4c261de45030d663f524f27376 for pr-78991
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftyler569%2Fcardinal" "/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/tyler569/cardinal on toolchain 8b72f65b805cbe4c261de45030d663f524f27376
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8b72f65b805cbe4c261de45030d663f524f27376" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-6/source/.cargo/config
[INFO] started tweaking git repo https://github.com/tyler569/cardinal
[INFO] finished tweaking git repo https://github.com/tyler569/cardinal
[INFO] tweaked toml for git repo https://github.com/tyler569/cardinal written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/tyler569/cardinal already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8b72f65b805cbe4c261de45030d663f524f27376" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded multiboot2 v0.10.1
[INFO] [stderr]   Downloaded spin v0.7.0
[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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+8b72f65b805cbe4c261de45030d663f524f27376" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b8e214fb975e65ad9575b73be4152c044974247f6e2e33d37572627ddd066cdb
[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" "b8e214fb975e65ad9575b73be4152c044974247f6e2e33d37572627ddd066cdb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b8e214fb975e65ad9575b73be4152c044974247f6e2e33d37572627ddd066cdb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b8e214fb975e65ad9575b73be4152c044974247f6e2e33d37572627ddd066cdb", kill_on_drop: false }`
[INFO] [stdout] b8e214fb975e65ad9575b73be4152c044974247f6e2e33d37572627ddd066cdb
[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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+8b72f65b805cbe4c261de45030d663f524f27376" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 464d7ff7a214c82291787624b72e93f9e1e8a7dd60e9e0d582da4a7d7c1c6ec8
[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" "464d7ff7a214c82291787624b72e93f9e1e8a7dd60e9e0d582da4a7d7c1c6ec8", kill_on_drop: false }`
[INFO] [stderr]     Checking spin v0.5.2
[INFO] [stderr]     Checking spin v0.7.0
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking multiboot2 v0.10.1
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking cardinal v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: no global memory allocator found but one is required; link to std or add `#[global_allocator]` to a static item that implements the GlobalAlloc trait.
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `#[panic_handler]` function required, but not found
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `#[alloc_error_handler]` function required, but not found.
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] note: Use `#![feature(default_alloc_error_handler)]` for a default error handler.
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: language item required, but not found: `eh_personality`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]    --> src/debug.rs:12:9
[INFO] [stdout]     |
[INFO] [stdout] 12  |         $crate::debug::print(format_args!($($arg)*));
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stdout]     | 
[INFO] [stdout]    ::: src/interrupt.rs:107:13
[INFO] [stdout]     |
[INFO] [stdout] 107 |             loop {}
[INFO] [stdout]     |             ------- any code following this expression is unreachable
[INFO] [stdout] 108 |             dprintln!("Page fault at {:#x}", x86::read_cr2());
[INFO] [stdout]     |             -------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]    --> src/debug.rs:12:9
[INFO] [stdout]     |
[INFO] [stdout] 12  |         $crate::debug::print(format_args!($($arg)*));
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stdout]     | 
[INFO] [stdout]    ::: src/interrupt.rs:107:13
[INFO] [stdout]     |
[INFO] [stdout] 107 |             loop {}
[INFO] [stdout]     |             ------- any code following this expression is unreachable
[INFO] [stdout] 108 |             dprintln!("Page fault at {:#x}", x86::read_cr2());
[INFO] [stdout]     |             -------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `cardinal`
[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] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "464d7ff7a214c82291787624b72e93f9e1e8a7dd60e9e0d582da4a7d7c1c6ec8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "464d7ff7a214c82291787624b72e93f9e1e8a7dd60e9e0d582da4a7d7c1c6ec8", kill_on_drop: false }`
[INFO] [stdout] 464d7ff7a214c82291787624b72e93f9e1e8a7dd60e9e0d582da4a7d7c1c6ec8