[INFO] crate k66 0.0.1 is already in cache
[INFO] checking k66-0.0.1 against try#8a5e87609850cdd8679aada01eb0f3062f254ca8 for pr-71140
[INFO] extracting crate k66 0.0.1 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate k66 0.0.1 on toolchain 8a5e87609850cdd8679aada01eb0f3062f254ca8
[INFO] running `"/workspace/cargo-home/bin/cargo" "+8a5e87609850cdd8679aada01eb0f3062f254ca8" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate k66 0.0.1
[INFO] finished tweaking crates.io crate k66 0.0.1
[INFO] tweaked toml for crates.io crate k66 0.0.1 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+8a5e87609850cdd8679aada01eb0f3062f254ca8" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/workspace/cargo-home/bin/cargo" "+8a5e87609850cdd8679aada01eb0f3062f254ca8" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+8a5e87609850cdd8679aada01eb0f3062f254ca8" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 72c046dee087782759713d181198bf074d327004bcd1d48a2addddfd4878610f
[INFO] running `"docker" "start" "-a" "72c046dee087782759713d181198bf074d327004bcd1d48a2addddfd4878610f"`
[INFO] [stderr]    Compiling cortex-m v0.6.2
[INFO] [stderr]    Compiling cortex-m v0.5.10
[INFO] [stderr]    Compiling k66 v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking aligned v0.2.0
[INFO] [stderr]    Compiling bare-metal v0.2.5
[INFO] [stderr]     Checking aligned v0.3.2
[INFO] [stderr] error: could not compile `k66`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name k66 src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --emit=dep-info,metadata -C debuginfo=2 --test -C metadata=70b2c22d77252a9a -C extra-filename=-70b2c22d77252a9a --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern bare_metal=/opt/rustwide/target/debug/deps/libbare_metal-8a936d4af0d3c281.rmeta --extern cortex_m=/opt/rustwide/target/debug/deps/libcortex_m-3a90971e932d37c9.rmeta --extern vcell=/opt/rustwide/target/debug/deps/libvcell-4d9f2fb63e5468a1.rmeta --cap-lints=forbid` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `k66`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name k66 src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type lib --emit=dep-info,metadata -C debuginfo=2 -C metadata=bc07403035c844ac -C extra-filename=-bc07403035c844ac --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern bare_metal=/opt/rustwide/target/debug/deps/libbare_metal-8a936d4af0d3c281.rmeta --extern cortex_m=/opt/rustwide/target/debug/deps/libcortex_m-3a90971e932d37c9.rmeta --extern vcell=/opt/rustwide/target/debug/deps/libvcell-4d9f2fb63e5468a1.rmeta --cap-lints=forbid` (signal: 9, SIGKILL: kill)
[INFO] running `"docker" "inspect" "72c046dee087782759713d181198bf074d327004bcd1d48a2addddfd4878610f"`
[INFO] running `"docker" "rm" "-f" "72c046dee087782759713d181198bf074d327004bcd1d48a2addddfd4878610f"`
[INFO] [stdout] 72c046dee087782759713d181198bf074d327004bcd1d48a2addddfd4878610f