[INFO] fetching crate kunit 0.1.1...
[INFO] fixing kunit-0.1.1 against try#622891a4e29178280638a6b63a8908bde2c0c854+cargoflags=-Zfix-edition=start=2015 for pr-157817-2
[INFO] extracting crate kunit 0.1.1 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate kunit 0.1.1
[INFO] finished tweaking crates.io crate kunit 0.1.1
[INFO] tweaked toml for crates.io crate kunit 0.1.1 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate kunit 0.1.1 on toolchain 622891a4e29178280638a6b63a8908bde2c0c854
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+622891a4e29178280638a6b63a8908bde2c0c854" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate kunit 0.1.1 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" "+622891a4e29178280638a6b63a8908bde2c0c854" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded conquer-once v0.4.0
[INFO] [stderr]   Downloaded kunit_macros v0.1.0
[INFO] [stderr]   Downloaded const_fn v0.4.11
[INFO] [stderr]   Downloaded conquer-util v0.3.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/source:/opt/rustwide/workdir:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3a6becf2bc8dde7f3fa57ede90e4f284e72d296796fc446bbb1e2c7cc0530151" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] bfc861f9657c849c3fc1ec8b8b83f097362edc1fefe961743f85c4b49bcc9df1
[INFO] running `Command { std: "docker" "start" "bfc861f9657c849c3fc1ec8b8b83f097362edc1fefe961743f85c4b49bcc9df1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "bfc861f9657c849c3fc1ec8b8b83f097362edc1fefe961743f85c4b49bcc9df1" "/opt/rustwide/cargo-home/bin/cargo" "+622891a4e29178280638a6b63a8908bde2c0c854" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bfc861f9657c849c3fc1ec8b8b83f097362edc1fefe961743f85c4b49bcc9df1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=" "-e" "RUSTDOCFLAGS=" "-w" "/opt/rustwide/workdir" "--user" "0:0" "bfc861f9657c849c3fc1ec8b8b83f097362edc1fefe961743f85c4b49bcc9df1" "/opt/rustwide/cargo-home/bin/cargo" "+622891a4e29178280638a6b63a8908bde2c0c854" "fix" "--allow-no-vcs" "--allow-dirty" "--frozen" "--all" "--all-targets" "--message-format=json" "-Zfix-edition=start=2015", kill_on_drop: false }`
[INFO] [stderr]     Checking bit_field v0.10.3
[INFO] [stderr]    Compiling x86 v0.52.0
[INFO] [stderr]    Compiling const_fn v0.4.11
[INFO] [stderr]    Compiling heapless v0.9.2
[INFO] [stderr]     Checking volatile v0.4.6
[INFO] [stderr]     Checking conquer-util v0.3.0
[INFO] [stderr]     Checking raw-cpuid v10.7.0
[INFO] [stderr]     Checking hash32 v0.3.1
[INFO] [stderr]     Checking spin v0.10.0
[INFO] [stderr]    Compiling syn v2.0.114
[INFO] [stderr]     Checking conquer-once v0.4.0
[INFO] [stderr]     Checking x86_64 v0.15.4
[INFO] [stderr]     Checking uart_16550 v0.4.0
[INFO] [stderr]    Compiling kunit_macros v0.1.0
[INFO] [stderr]     Checking kunit v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] error: `#[panic_handler]` function required, but not found
[INFO] [stdout] 
[INFO] [stdout] 
[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] [stderr] error: could not compile `kunit` (lib test) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "bfc861f9657c849c3fc1ec8b8b83f097362edc1fefe961743f85c4b49bcc9df1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bfc861f9657c849c3fc1ec8b8b83f097362edc1fefe961743f85c4b49bcc9df1", kill_on_drop: false }`
[INFO] [stdout] bfc861f9657c849c3fc1ec8b8b83f097362edc1fefe961743f85c4b49bcc9df1
