[INFO] fetching crate chip8_core 0.4.0...
[INFO] checking chip8_core-0.4.0 against master#350d0ef0ec0493e6d21cfb265cb8211a0e74d766 for pr-145342-1
[INFO] extracting crate chip8_core 0.4.0 into /workspace/builds/worker-5-tc1/source
[INFO] started tweaking crates.io crate chip8_core 0.4.0
[INFO] finished tweaking crates.io crate chip8_core 0.4.0
[INFO] tweaked toml for crates.io crate chip8_core 0.4.0 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate chip8_core 0.4.0 on toolchain 350d0ef0ec0493e6d21cfb265cb8211a0e74d766
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "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" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 28 packages to latest compatible versions
[INFO] [stderr]       Adding nanorand v0.7.0 (available: v0.8.0)
[INFO] [stderr]       Adding serde-wasm-bindgen v0.4.5 (available: v0.6.5)
[INFO] [stderr]       Adding tsify v0.4.5 (available: v0.5.5)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tsify v0.4.5
[INFO] [stderr]   Downloaded tsify-macros v0.4.5
[INFO] [stderr]   Downloaded serde_derive_internals v0.28.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 17b456c060b14a45683f617d994879b42757fc75b5fd68b2cf997f769df405ab
[INFO] running `Command { std: "docker" "start" "-a" "17b456c060b14a45683f617d994879b42757fc75b5fd68b2cf997f769df405ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "17b456c060b14a45683f617d994879b42757fc75b5fd68b2cf997f769df405ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "17b456c060b14a45683f617d994879b42757fc75b5fd68b2cf997f769df405ab", kill_on_drop: false }`
[INFO] [stdout] 17b456c060b14a45683f617d994879b42757fc75b5fd68b2cf997f769df405ab
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fdc97d0415f2bcea5c5c75cfda347c16edcb8643b6ade147bd9e6652bb5f932f
[INFO] running `Command { std: "docker" "start" "-a" "fdc97d0415f2bcea5c5c75cfda347c16edcb8643b6ade147bd9e6652bb5f932f", kill_on_drop: false }`
[INFO] [stderr]     Checking nanorand v0.7.0
[INFO] [stderr]     Checking chip8_core v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: no global memory allocator found but one is required; link to std or add `#[global_allocator]` to a static item that implements the GlobalAlloc trait
[INFO] [stdout] 
[INFO] [stdout] 
[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 `chip8_core` (lib) due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "fdc97d0415f2bcea5c5c75cfda347c16edcb8643b6ade147bd9e6652bb5f932f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fdc97d0415f2bcea5c5c75cfda347c16edcb8643b6ade147bd9e6652bb5f932f", kill_on_drop: false }`
[INFO] [stdout] fdc97d0415f2bcea5c5c75cfda347c16edcb8643b6ade147bd9e6652bb5f932f