[INFO] cloning repository https://github.com/thomasebsmith/rhubarb-os
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/thomasebsmith/rhubarb-os" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthomasebsmith%2Frhubarb-os", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthomasebsmith%2Frhubarb-os'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 75d8da0f85bb0f7e3d4dd259b94b5c865f840bcc
[INFO] testing thomasebsmith/rhubarb-os against 1.60.0 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthomasebsmith%2Frhubarb-os" "/workspace/builds/worker-78/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-78/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/thomasebsmith/rhubarb-os on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-78/source/.cargo/config.toml
[INFO] removed /workspace/builds/worker-78/source/rust-toolchain
[INFO] started tweaking git repo https://github.com/thomasebsmith/rhubarb-os
[INFO] finished tweaking git repo https://github.com/thomasebsmith/rhubarb-os
[INFO] tweaked toml for git repo https://github.com/thomasebsmith/rhubarb-os written to /workspace/builds/worker-78/source/Cargo.toml
[INFO] crate git repo https://github.com/thomasebsmith/rhubarb-os already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: the cargo feature `strip` has been stabilized in the 1.58 release and is no longer necessary to be listed in the manifest
[INFO] [stderr]   See https://doc.rust-lang.org/cargo/reference/profiles.html#strip-option for more information about using this feature.
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-78/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-78/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6c26f5f51187522ea2f772f102c2e6885cf914285bc2e83c13917cd7eebc7b98
[INFO] running `Command { std: "docker" "start" "-a" "6c26f5f51187522ea2f772f102c2e6885cf914285bc2e83c13917cd7eebc7b98", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6c26f5f51187522ea2f772f102c2e6885cf914285bc2e83c13917cd7eebc7b98", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6c26f5f51187522ea2f772f102c2e6885cf914285bc2e83c13917cd7eebc7b98", kill_on_drop: false }`
[INFO] [stdout] 6c26f5f51187522ea2f772f102c2e6885cf914285bc2e83c13917cd7eebc7b98
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-78/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-78/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ce42e54d9ce3e9ce24ced6d3a68c031abb9fe0d3797fefc93a3837b369ea411e
[INFO] running `Command { std: "docker" "start" "-a" "ce42e54d9ce3e9ce24ced6d3a68c031abb9fe0d3797fefc93a3837b369ea411e", kill_on_drop: false }`
[INFO] [stderr] warning: the cargo feature `strip` has been stabilized in the 1.58 release and is no longer necessary to be listed in the manifest
[INFO] [stderr]   See https://doc.rust-lang.org/cargo/reference/profiles.html#strip-option for more information about using this feature.
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling os v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `crate::arch::asm`
[INFO] [stdout]  --> src/panic.rs:5:18
[INFO] [stdout]   |
[INFO] [stdout] 5 | use crate::arch::asm::wait_forever;
[INFO] [stdout]   |                  ^^^ could not find `asm` in `arch`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `arch::asm`
[INFO] [stdout]   --> src/main.rs:18:11
[INFO] [stdout]    |
[INFO] [stdout] 18 | use arch::asm::{get_cpu_id, wait_forever};
[INFO] [stdout]    |           ^^^ could not find `asm` in `arch`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/main.rs:7:1
[INFO] [stdout]   |
[INFO] [stdout] 7 | #![feature(asm)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/main.rs:8:1
[INFO] [stdout]   |
[INFO] [stdout] 8 | #![feature(global_asm)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/main.rs:9:1
[INFO] [stdout]   |
[INFO] [stdout] 9 | #![feature(negative_impls)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 5 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0554.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `os` due to 6 previous errors
[INFO] running `Command { std: "docker" "inspect" "ce42e54d9ce3e9ce24ced6d3a68c031abb9fe0d3797fefc93a3837b369ea411e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ce42e54d9ce3e9ce24ced6d3a68c031abb9fe0d3797fefc93a3837b369ea411e", kill_on_drop: false }`
[INFO] [stdout] ce42e54d9ce3e9ce24ced6d3a68c031abb9fe0d3797fefc93a3837b369ea411e