[INFO] cloning repository https://github.com/xrs-os/kernel
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/xrs-os/kernel" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxrs-os%2Fkernel", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxrs-os%2Fkernel'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d11e60275dfe77ac1ded57b536af88794069e701
[INFO] checking xrs-os/kernel against try#438eb4c1a1c3841523d7f672601e8adbe04cff28 for pr-147589-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxrs-os%2Fkernel" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-3-tc2/source/.cargo/config.toml
[INFO] removed /workspace/builds/worker-3-tc2/source/rust-toolchain
[INFO] started tweaking git repo https://github.com/xrs-os/kernel
[INFO] finished tweaking git repo https://github.com/xrs-os/kernel
[INFO] tweaked toml for git repo https://github.com/xrs-os/kernel written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/xrs-os/kernel on toolchain 438eb4c1a1c3841523d7f672601e8adbe04cff28
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+438eb4c1a1c3841523d7f672601e8adbe04cff28" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/xrs-os/kernel already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+438eb4c1a1c3841523d7f672601e8adbe04cff28" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating git repository `https://github.com/xrs-os/byte-struct-rs`
[INFO] [stderr]     Updating git repository `https://github.com/rcore-os/device_tree-rs`
[INFO] [stderr]     Updating git repository `https://github.com/rcore-os/naive-timer`
[INFO] [stderr]     Updating git repository `https://github.com/xrs-os/virtio-drivers`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded volatile v0.2.7
[INFO] [stderr]   Downloaded volatile v0.4.4
[INFO] [stderr]   Downloaded zero v0.1.2
[INFO] [stderr]   Downloaded xmas-elf v0.8.0
[INFO] [stderr]   Downloaded linked_list_allocator v0.9.0
[INFO] [stderr]   Downloaded array-init v2.0.0
[INFO] [stderr]   Downloaded ahash v0.7.5
[INFO] [stderr]   Downloaded tokio-test v0.4.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+438eb4c1a1c3841523d7f672601e8adbe04cff28" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7d195836328e8db46d22b02e83d359042fba4cd325247f293cdc49273ac9c754
[INFO] running `Command { std: "docker" "start" "-a" "7d195836328e8db46d22b02e83d359042fba4cd325247f293cdc49273ac9c754", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7d195836328e8db46d22b02e83d359042fba4cd325247f293cdc49273ac9c754", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7d195836328e8db46d22b02e83d359042fba4cd325247f293cdc49273ac9c754", kill_on_drop: false }`
[INFO] [stdout] 7d195836328e8db46d22b02e83d359042fba4cd325247f293cdc49273ac9c754
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+438eb4c1a1c3841523d7f672601e8adbe04cff28" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 84b8f2b98456502c28b7b4a6fdc4d130123ed11381da422efb93eb57b5cbc81b
[INFO] running `Command { std: "docker" "start" "-a" "84b8f2b98456502c28b7b4a6fdc4d130123ed11381da422efb93eb57b5cbc81b", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.29
[INFO] [stderr]    Compiling syn v1.0.80
[INFO] [stderr]    Compiling libc v0.2.103
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stderr]    Compiling crossbeam-queue v0.3.2
[INFO] [stderr]     Checking once_cell v1.8.0
[INFO] [stderr]    Compiling futures-task v0.3.17
[INFO] [stderr]     Checking lock_api v0.4.5
[INFO] [stderr]    Compiling ahash v0.7.5
[INFO] [stderr]    Compiling futures-util v0.3.17
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling tokio v1.12.0
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]     Checking array-init v2.0.0
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]     Checking num_enum v0.1.0 (/opt/rustwide/workdir/crates/num_enum)
[INFO] [stderr]     Checking bitmap v0.1.0 (/opt/rustwide/workdir/crates/bitmap)
[INFO] [stderr]    Compiling indexmap v1.7.0
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking debug v0.1.0 (/opt/rustwide/workdir/crates/debug)
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]     Checking textwrap v0.14.2
[INFO] [stdout] error: invalid register `a0`: unknown register
[INFO] [stdout]  --> crates/debug/src/arch/riscv.rs:9:13
[INFO] [stdout]   |
[INFO] [stdout] 9 |             in("a0") arg0, in("a1") arg1, in("a2") arg2,
[INFO] [stdout]   |             ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: invalid register `a1`: unknown register
[INFO] [stdout]  --> crates/debug/src/arch/riscv.rs:9:28
[INFO] [stdout]   |
[INFO] [stdout] 9 |             in("a0") arg0, in("a1") arg1, in("a2") arg2,
[INFO] [stdout]   |                            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: invalid register `a2`: unknown register
[INFO] [stdout]  --> crates/debug/src/arch/riscv.rs:9:43
[INFO] [stdout]   |
[INFO] [stdout] 9 |             in("a0") arg0, in("a1") arg1, in("a2") arg2,
[INFO] [stdout]   |                                           ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: invalid register `a7`: unknown register
[INFO] [stdout]   --> crates/debug/src/arch/riscv.rs:10:13
[INFO] [stdout]    |
[INFO] [stdout] 10 |             in("a7") which,
[INFO] [stdout]    |             ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: invalid register `a0`: unknown register
[INFO] [stdout]   --> crates/debug/src/arch/riscv.rs:11:13
[INFO] [stdout]    |
[INFO] [stdout] 11 |             lateout("a0") ret,
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking spin v0.9.2
[INFO] [stderr]     Checking spinning_top v0.2.4
[INFO] [stderr] error: could not compile `debug` (lib) due to 5 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "84b8f2b98456502c28b7b4a6fdc4d130123ed11381da422efb93eb57b5cbc81b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "84b8f2b98456502c28b7b4a6fdc4d130123ed11381da422efb93eb57b5cbc81b", kill_on_drop: false }`
[INFO] [stdout] 84b8f2b98456502c28b7b4a6fdc4d130123ed11381da422efb93eb57b5cbc81b