[INFO] fetching crate ra6m3 0.2.0...
[INFO] testing ra6m3-0.2.0 against master#159ba8a92c9e2fa4121f106176309521f4af87e9+rustflags=-Copt-level=3 for pr-107051
[INFO] extracting crate ra6m3 0.2.0 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate ra6m3 0.2.0 on toolchain 159ba8a92c9e2fa4121f106176309521f4af87e9
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+159ba8a92c9e2fa4121f106176309521f4af87e9" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ra6m3 0.2.0
[INFO] finished tweaking crates.io crate ra6m3 0.2.0
[INFO] tweaked toml for crates.io crate ra6m3 0.2.0 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" __CARGO_TEST_CHANNEL_OVERRIDE_DO_NOT_USE_THIS="nightly" "/workspace/cargo-home/bin/cargo" "+159ba8a92c9e2fa4121f106176309521f4af87e9" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+159ba8a92c9e2fa4121f106176309521f4af87e9" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:7c93e6f9a94679f34221d1005849d4c83862f85b14a264fa0883942f4d043a66" "/opt/rustwide/cargo-home/bin/cargo" "+159ba8a92c9e2fa4121f106176309521f4af87e9" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6c461e6e43268797e5abaf6a8cc222c313c1774c2e98fb0b4378457f5f1f75c5
[INFO] running `Command { std: "docker" "start" "-a" "6c461e6e43268797e5abaf6a8cc222c313c1774c2e98fb0b4378457f5f1f75c5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6c461e6e43268797e5abaf6a8cc222c313c1774c2e98fb0b4378457f5f1f75c5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6c461e6e43268797e5abaf6a8cc222c313c1774c2e98fb0b4378457f5f1f75c5", kill_on_drop: false }`
[INFO] [stdout] 6c461e6e43268797e5abaf6a8cc222c313c1774c2e98fb0b4378457f5f1f75c5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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 -Copt-level=3" "-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@sha256:7c93e6f9a94679f34221d1005849d4c83862f85b14a264fa0883942f4d043a66" "/opt/rustwide/cargo-home/bin/cargo" "+159ba8a92c9e2fa4121f106176309521f4af87e9" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 62bdf1189845acc00826eb96ab2594cea2846fbf723de6e80f7bdb5bac96174b
[INFO] running `Command { std: "docker" "start" "-a" "62bdf1189845acc00826eb96ab2594cea2846fbf723de6e80f7bdb5bac96174b", kill_on_drop: false }`
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling nb v1.0.0
[INFO] [stderr]    Compiling cortex-m v0.7.7
[INFO] [stderr]    Compiling vcell v0.1.3
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling portable-atomic v0.3.19
[INFO] [stderr]    Compiling bitfield v0.13.2
[INFO] [stderr]    Compiling ra6m3 v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling volatile-register v0.2.1
[INFO] [stderr]    Compiling nb v0.1.3
[INFO] [stderr]    Compiling embedded-hal v0.2.7
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling bare-metal v0.2.5
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/glcdc/gr_clutint.rs:73:13
[INFO] [stdout]    |
[INFO] [stdout] 73 |             _ => None,
[INFO] [stdout]    |             ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ra6m3`; 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name ra6m3 --edition=2021 src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debuginfo=2 -C metadata=c94d7ab9f571de3c -C extra-filename=-c94d7ab9f571de3c --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern cortex_m=/opt/rustwide/target/debug/deps/libcortex_m-dae195b64a6b0eb1.rmeta --extern portable_atomic=/opt/rustwide/target/debug/deps/libportable_atomic-ef585799b84092e5.rmeta --extern vcell=/opt/rustwide/target/debug/deps/libvcell-1e9b370901327104.rmeta --cap-lints=forbid -Copt-level=3` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "62bdf1189845acc00826eb96ab2594cea2846fbf723de6e80f7bdb5bac96174b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "62bdf1189845acc00826eb96ab2594cea2846fbf723de6e80f7bdb5bac96174b", kill_on_drop: false }`
[INFO] [stdout] 62bdf1189845acc00826eb96ab2594cea2846fbf723de6e80f7bdb5bac96174b