[INFO] fetching crate wasi-print 0.2.2...
[INFO] checking wasi-print-0.2.2 against try#998b6603a58e47f42ccce7a67943234e96b6839e for pr-143170
[INFO] extracting crate wasi-print 0.2.2 into /workspace/builds/worker-6-tc2/source
[INFO] removed /workspace/builds/worker-6-tc2/source/.cargo/config.toml
[INFO] removed /workspace/builds/worker-6-tc2/source/rust-toolchain.toml
[INFO] started tweaking crates.io crate wasi-print 0.2.2
[INFO] finished tweaking crates.io crate wasi-print 0.2.2
[INFO] tweaked toml for crates.io crate wasi-print 0.2.2 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate wasi-print 0.2.2 on toolchain 998b6603a58e47f42ccce7a67943234e96b6839e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "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" "+998b6603a58e47f42ccce7a67943234e96b6839e" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 15 packages to latest compatible versions
[INFO] [stderr]       Adding wasi v0.11.1+wasi-snapshot-preview1 (available: v0.14.2+wasi-0.2.4)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f070ae3716e40f2b0f24b4020c3b42e366fc7e7b436c694327bce70c4f7272aa
[INFO] running `Command { std: "docker" "start" "-a" "f070ae3716e40f2b0f24b4020c3b42e366fc7e7b436c694327bce70c4f7272aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f070ae3716e40f2b0f24b4020c3b42e366fc7e7b436c694327bce70c4f7272aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f070ae3716e40f2b0f24b4020c3b42e366fc7e7b436c694327bce70c4f7272aa", kill_on_drop: false }`
[INFO] [stdout] f070ae3716e40f2b0f24b4020c3b42e366fc7e7b436c694327bce70c4f7272aa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 71985addee29fd6418f3ec743dc4b29ffdc0140896b6a5f3a75ba0e79c6b81a8
[INFO] running `Command { std: "docker" "start" "-a" "71985addee29fd6418f3ec743dc4b29ffdc0140896b6a5f3a75ba0e79c6b81a8", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.174
[INFO] [stderr]    Compiling compiler_builtins v0.1.160
[INFO] [stderr]     Checking cfg-if v1.0.1
[INFO] [stderr]     Checking wasi v0.11.1+wasi-snapshot-preview1
[INFO] [stderr]     Checking dlmalloc v0.2.9
[INFO] [stderr]     Checking wasi-print v0.2.2 (/opt/rustwide/workdir)
[INFO] [stdout] error: `#[no_mangle]` cannot be used on internal language items
[INFO] [stdout]    --> src/lib.rs:109:1
[INFO] [stdout]     |
[INFO] [stdout] 109 | #[no_mangle]
[INFO] [stdout]     | ^^^^^^^^^^^^
[INFO] [stdout] 110 | pub extern "C" fn panic_handler(_panic_info: &core::panic::PanicInfo) -> ! {
[INFO] [stdout]     | -------------------------------------------------------------------------- should be the internal language item
[INFO] [stdout]     |
[INFO] [stdout]     = note: Rustc requires this item to have a specific mangled name.
[INFO] [stdout]     = note: If you are trying to prevent mangling to ease debugging, many
[INFO] [stdout]     = note: debuggers support a command such as `rbreak rust_begin_unwind` to
[INFO] [stdout]     = note: match `.*rust_begin_unwind.*` instead of `break rust_begin_unwind` on a specific name
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: `#[panic_handler]` function has wrong type
[INFO] [stdout]    --> src/lib.rs:110:1
[INFO] [stdout]     |
[INFO] [stdout] 110 | pub extern "C" fn panic_handler(_panic_info: &core::panic::PanicInfo) -> ! {
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected "Rust" fn, found "C" fn
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected signature `for<'a, 'b> fn(&'a PanicInfo<'b>) -> _`
[INFO] [stdout]                found signature `extern "C" for<'a, 'b> fn(&'a PanicInfo<'b>) -> _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `wasi-print` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "71985addee29fd6418f3ec743dc4b29ffdc0140896b6a5f3a75ba0e79c6b81a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "71985addee29fd6418f3ec743dc4b29ffdc0140896b6a5f3a75ba0e79c6b81a8", kill_on_drop: false }`
[INFO] [stdout] 71985addee29fd6418f3ec743dc4b29ffdc0140896b6a5f3a75ba0e79c6b81a8