[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] b2da92503566f74695da79f6316f6502c468a32a
[INFO] checking thomasebsmith/rhubarb-os against try#07fecb9cf34c4979a772ba38c99d6d9144768413 for pr-87710
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthomasebsmith%2Frhubarb-os" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/thomasebsmith/rhubarb-os on toolchain 07fecb9cf34c4979a772ba38c99d6d9144768413
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-9/source/.cargo/config.toml
[INFO] removed /workspace/builds/worker-9/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-9/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" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] af414721b2eca757aea948b29805b7239cf22e562f01a6c0b4b1db11ceaf0be4
[INFO] running `Command { std: "docker" "start" "-a" "af414721b2eca757aea948b29805b7239cf22e562f01a6c0b4b1db11ceaf0be4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "af414721b2eca757aea948b29805b7239cf22e562f01a6c0b4b1db11ceaf0be4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "af414721b2eca757aea948b29805b7239cf22e562f01a6c0b4b1db11ceaf0be4", kill_on_drop: false }`
[INFO] [stdout] af414721b2eca757aea948b29805b7239cf22e562f01a6c0b4b1db11ceaf0be4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3315588db8bbd94de7a6aeb958fafcff137ce283964fe48d24c09604d1f9ff38
[INFO] running `Command { std: "docker" "start" "-a" "3315588db8bbd94de7a6aeb958fafcff137ce283964fe48d24c09604d1f9ff38", kill_on_drop: false }`
[INFO] [stderr]     Checking os v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `crate::arch::asm`
[INFO] [stdout]  --> src/panic.rs:1:18
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::arch::asm::wait_forever;
[INFO] [stdout]   |                  ^^^ could not find `asm` in `arch`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `asm` in `arch`
[INFO] [stdout]   --> src/main.rs:21:11
[INFO] [stdout]    |
[INFO] [stdout] 21 |     arch::asm::wait_forever()
[INFO] [stdout]    |           ^^^ could not find `asm` in `arch`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0433.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `crate::arch::asm`
[INFO] [stdout]  --> src/panic.rs:1:18
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::arch::asm::wait_forever;
[INFO] [stdout]   |                  ^^^ could not find `asm` in `arch`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `os` due to 3 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0433]: failed to resolve: could not find `asm` in `arch`
[INFO] [stdout]   --> src/main.rs:21:11
[INFO] [stdout]    |
[INFO] [stdout] 21 |     arch::asm::wait_forever()
[INFO] [stdout]    |           ^^^ could not find `asm` in `arch`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0152]: found duplicate lang item `panic_impl`
[INFO] [stdout]  --> src/panic.rs:6:1
[INFO] [stdout]   |
[INFO] [stdout] 6 | fn panic(_: &core::panic::PanicInfo) -> ! {
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: the lang item is first defined in crate `std` (which `test` depends on)
[INFO] [stdout]   = note: first definition in `std` loaded from /opt/rustwide/rustup-home/toolchains/07fecb9cf34c4979a772ba38c99d6d9144768413/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-1dd6c19f0820d51d.rlib
[INFO] [stdout]   = note: second definition in the local crate (`os`)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0152, E0432, E0433.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0152`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "3315588db8bbd94de7a6aeb958fafcff137ce283964fe48d24c09604d1f9ff38", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3315588db8bbd94de7a6aeb958fafcff137ce283964fe48d24c09604d1f9ff38", kill_on_drop: false }`
[INFO] [stdout] 3315588db8bbd94de7a6aeb958fafcff137ce283964fe48d24c09604d1f9ff38