[INFO] cloning repository https://github.com/yuya-isaka/kernel-context-switch
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/yuya-isaka/kernel-context-switch" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyuya-isaka%2Fkernel-context-switch", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyuya-isaka%2Fkernel-context-switch'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9796a5b24473d417b7c82c65b033d0d14f1fe991
[INFO] checking yuya-isaka/kernel-context-switch against master#46424fb5054f211ec836c5c03159f92e46bb35ac for pr-139042
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyuya-isaka%2Fkernel-context-switch" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/yuya-isaka/kernel-context-switch on toolchain 46424fb5054f211ec836c5c03159f92e46bb35ac
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+46424fb5054f211ec836c5c03159f92e46bb35ac" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-7-tc1/source/.cargo/config.toml
[INFO] started tweaking git repo https://github.com/yuya-isaka/kernel-context-switch
[INFO] finished tweaking git repo https://github.com/yuya-isaka/kernel-context-switch
[INFO] tweaked toml for git repo https://github.com/yuya-isaka/kernel-context-switch written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/yuya-isaka/kernel-context-switch 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" "+46424fb5054f211ec836c5c03159f92e46bb35ac" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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@sha256:4b26683ee3c49f365255c425c23003cbf4366de097804722c29c5bbbee3624d2" "/opt/rustwide/cargo-home/bin/cargo" "+46424fb5054f211ec836c5c03159f92e46bb35ac" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1b26bcf811144118ef6e9679700c58e800137f13bb306fab95a5b878f690620a
[INFO] running `Command { std: "docker" "start" "-a" "1b26bcf811144118ef6e9679700c58e800137f13bb306fab95a5b878f690620a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1b26bcf811144118ef6e9679700c58e800137f13bb306fab95a5b878f690620a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1b26bcf811144118ef6e9679700c58e800137f13bb306fab95a5b878f690620a", kill_on_drop: false }`
[INFO] [stdout] 1b26bcf811144118ef6e9679700c58e800137f13bb306fab95a5b878f690620a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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@sha256:4b26683ee3c49f365255c425c23003cbf4366de097804722c29c5bbbee3624d2" "/opt/rustwide/cargo-home/bin/cargo" "+46424fb5054f211ec836c5c03159f92e46bb35ac" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cc4b63f2eff2ee7f56da53f47f4651bd8955ecc92536c92e37de5cf569df2126
[INFO] running `Command { std: "docker" "start" "-a" "cc4b63f2eff2ee7f56da53f47f4651bd8955ecc92536c92e37de5cf569df2126", kill_on_drop: false }`
[INFO] [stderr]     Checking kernel-context-switch v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: unwinding panics are not supported without std
[INFO] [stdout]   |
[INFO] [stdout]   = help: using nightly cargo, use -Zbuild-std with panic="abort" to avoid unwinding
[INFO] [stdout]   = note: since the core library is usually precompiled with panic="unwind", rebuilding your crate with panic="abort" may not be enough to fix the problem
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: invalid register `a0`: unknown register
[INFO] [stdout]   --> src/main.rs:30:9
[INFO] [stdout]    |
[INFO] [stdout] 30 |         in("a0") a0, in("a1") a1, in("a6") fid, in("a7") eid
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: invalid register `a1`: unknown register
[INFO] [stdout]   --> src/main.rs:30:22
[INFO] [stdout]    |
[INFO] [stdout] 30 |         in("a0") a0, in("a1") a1, in("a6") fid, in("a7") eid
[INFO] [stdout]    |                      ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: invalid register `a6`: unknown register
[INFO] [stdout]   --> src/main.rs:30:35
[INFO] [stdout]    |
[INFO] [stdout] 30 |         in("a0") a0, in("a1") a1, in("a6") fid, in("a7") eid
[INFO] [stdout]    |                                   ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: invalid register `a7`: unknown register
[INFO] [stdout]   --> src/main.rs:30:49
[INFO] [stdout]    |
[INFO] [stdout] 30 |         in("a0") a0, in("a1") a1, in("a6") fid, in("a7") eid
[INFO] [stdout]    |                                                 ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0152]: found duplicate lang item `panic_impl`
[INFO] [stdout]   --> src/main.rs:7:1
[INFO] [stdout]    |
[INFO] [stdout] 7  | / fn panic(_: &PanicInfo) -> ! {
[INFO] [stdout] 8  | |     loop {
[INFO] [stdout] 9  | |         unsafe {
[INFO] [stdout] 10 | |             asm!("wfi");
[INFO] [stdout] ...  |
[INFO] [stdout] 13 | | }
[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/46424fb5054f211ec836c5c03159f92e46bb35ac/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-a8a1b340385a4070.rlib
[INFO] [stdout]    = note: second definition in the local crate (`kernel_context_switch`)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0152`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `kernel-context-switch` (bin "kernel-context-switch" test) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `kernel-context-switch` (bin "kernel-context-switch") due to 5 previous errors
[INFO] running `Command { std: "docker" "inspect" "cc4b63f2eff2ee7f56da53f47f4651bd8955ecc92536c92e37de5cf569df2126", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cc4b63f2eff2ee7f56da53f47f4651bd8955ecc92536c92e37de5cf569df2126", kill_on_drop: false }`
[INFO] [stdout] cc4b63f2eff2ee7f56da53f47f4651bd8955ecc92536c92e37de5cf569df2126