[INFO] fetching crate wookong-solo 0.1.4...
[INFO] checking wookong-solo-0.1.4 against try#1463461488056994d1b84e8b752e7c11c7fae7aa for pr-154205
[INFO] extracting crate wookong-solo 0.1.4 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate wookong-solo 0.1.4
[INFO] finished tweaking crates.io crate wookong-solo 0.1.4
[INFO] tweaked toml for crates.io crate wookong-solo 0.1.4 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate wookong-solo 0.1.4 on toolchain 1463461488056994d1b84e8b752e7c11c7fae7aa
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1463461488056994d1b84e8b752e7c11c7fae7aa" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1463461488056994d1b84e8b752e7c11c7fae7aa" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 3 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1463461488056994d1b84e8b752e7c11c7fae7aa" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1463461488056994d1b84e8b752e7c11c7fae7aa" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a4d7a138bd93ef5e652df1b64b4991215b964346661e39b1f2765dbd4efa3eb4
[INFO] running `Command { std: "docker" "start" "-a" "a4d7a138bd93ef5e652df1b64b4991215b964346661e39b1f2765dbd4efa3eb4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a4d7a138bd93ef5e652df1b64b4991215b964346661e39b1f2765dbd4efa3eb4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a4d7a138bd93ef5e652df1b64b4991215b964346661e39b1f2765dbd4efa3eb4", kill_on_drop: false }`
[INFO] [stdout] a4d7a138bd93ef5e652df1b64b4991215b964346661e39b1f2765dbd4efa3eb4
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1463461488056994d1b84e8b752e7c11c7fae7aa" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 56629f7f83e167326f3c5606ff8d1961f0353c0a7af1d8cf1eb0b76532cdb6b8
[INFO] running `Command { std: "docker" "start" "-a" "56629f7f83e167326f3c5606ff8d1961f0353c0a7af1d8cf1eb0b76532cdb6b8", kill_on_drop: false }`
[INFO] [stderr]    Compiling find-msvc-tools v0.1.9
[INFO] [stderr]    Compiling cc v1.2.57
[INFO] [stderr]    Compiling wookong-solo v0.1.4 (/opt/rustwide/workdir)
[INFO] [stderr] warning: wookong-solo@0.1.4: src/driver/os_uart.c: In function 'uart_init':
[INFO] [stderr] warning: wookong-solo@0.1.4: src/driver/os_uart.c:26:8: warning: 'fd' is used uninitialized [-Wuninitialized]
[INFO] [stderr] warning: wookong-solo@0.1.4:    26 |     if (fd < 0) /* Error Checking */
[INFO] [stderr] warning: wookong-solo@0.1.4:       |        ^
[INFO] [stderr] warning: wookong-solo@0.1.4: src/driver/os_uart.c:17:9: note: 'fd' was declared here
[INFO] [stderr] warning: wookong-solo@0.1.4:    17 |     int fd;
[INFO] [stderr] warning: wookong-solo@0.1.4:       |         ^~
[INFO] [stdout] warning: `extern` declarations without an explicit ABI are deprecated
[INFO] [stdout]   --> src/lib.rs:11:1
[INFO] [stdout]    |
[INFO] [stdout] 11 | extern {
[INFO] [stdout]    | ^^^^^^ help: explicitly specify the "C" ABI: `extern "C"`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(missing_abi)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` declarations without an explicit ABI are deprecated
[INFO] [stdout]   --> src/lib.rs:11:1
[INFO] [stdout]    |
[INFO] [stdout] 11 | extern {
[INFO] [stdout]    | ^^^^^^ help: explicitly specify the "C" ABI: `extern "C"`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(missing_abi)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.08s
[INFO] running `Command { std: "docker" "inspect" "56629f7f83e167326f3c5606ff8d1961f0353c0a7af1d8cf1eb0b76532cdb6b8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "56629f7f83e167326f3c5606ff8d1961f0353c0a7af1d8cf1eb0b76532cdb6b8", kill_on_drop: false }`
[INFO] [stdout] 56629f7f83e167326f3c5606ff8d1961f0353c0a7af1d8cf1eb0b76532cdb6b8