[INFO] crate mk66f18 0.1.0 is already in cache
[INFO] extracting crate mk66f18 0.1.0 into work/ex/beta-1.37-6/sources/1.36.0/reg/mk66f18/0.1.0
[INFO] extracting crate mk66f18 0.1.0 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/mk66f18/0.1.0
[INFO] validating manifest of mk66f18-0.1.0 on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of mk66f18-0.1.0 on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing mk66f18-0.1.0
[INFO] finished frobbing mk66f18-0.1.0
[INFO] frobbed toml for mk66f18-0.1.0 written to work/ex/beta-1.37-6/sources/1.36.0/reg/mk66f18/0.1.0/Cargo.toml
[INFO] started frobbing mk66f18-0.1.0
[INFO] finished frobbing mk66f18-0.1.0
[INFO] frobbed toml for mk66f18-0.1.0 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/mk66f18/0.1.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing mk66f18-0.1.0 against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-2/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/mk66f18/0.1.0:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-07-23" "build" "--frozen"`
[INFO] [stdout] e8e0aa91dd12bade80a35bfe1994693ceb3a17c391843f285acb89d084a3f72e
[INFO] running `"docker" "start" "-a" "e8e0aa91dd12bade80a35bfe1994693ceb3a17c391843f285acb89d084a3f72e"`
[INFO] [stderr]    Compiling stable_deref_trait v1.1.1
[INFO] [stderr]    Compiling cortex-m v0.6.0
[INFO] [stderr]    Compiling vcell v0.1.0
[INFO] [stderr]    Compiling cortex-m v0.5.10
[INFO] [stderr]    Compiling mk66f18 v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]    Compiling aligned v0.2.0
[INFO] [stderr]    Compiling bare-metal v0.2.4
[INFO] [stderr]    Compiling as-slice v0.1.0
[INFO] [stderr]    Compiling volatile-register v0.2.0
[INFO] [stderr]    Compiling aligned v0.3.1
[INFO] [stderr] warning: lint `private_no_mangle_statics` has been removed: `no longer a warning, #[no_mangle] statics always exported`
[INFO] [stderr]     --> src/lib.rs:2176:9
[INFO] [stderr]      |
[INFO] [stderr] 2176 | #[allow(private_no_mangle_statics)]
[INFO] [stderr]      |         ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr] note: lint level defined here
[INFO] [stderr]     --> src/lib.rs:3:9
[INFO] [stderr]      |
[INFO] [stderr] 3    | #![deny(warnings)]
[INFO] [stderr]      |         ^^^^^^^^
[INFO] [stderr]      = note: #[warn(renamed_and_removed_lints)] implied by #[warn(warnings)]
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `mk66f18`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name mk66f18 src/lib.rs --color never --crate-type lib --emit=dep-info,metadata,link -C debuginfo=2 -C metadata=a72871ffd026fffa -C extra-filename=-a72871ffd026fffa --out-dir /opt/crater/target/debug/deps -L dependency=/opt/crater/target/debug/deps --extern bare_metal=/opt/crater/target/debug/deps/libbare_metal-34753df447cbc5d6.rlib --extern cortex_m=/opt/crater/target/debug/deps/libcortex_m-b1c12cec89afc637.rlib --extern vcell=/opt/crater/target/debug/deps/libvcell-5a36879800c7f430.rlib --cap-lints=warn` (signal: 9, SIGKILL: kill)
[INFO] running `"docker" "inspect" "e8e0aa91dd12bade80a35bfe1994693ceb3a17c391843f285acb89d084a3f72e"`
[INFO] running `"docker" "rm" "-f" "e8e0aa91dd12bade80a35bfe1994693ceb3a17c391843f285acb89d084a3f72e"`
[INFO] [stdout] e8e0aa91dd12bade80a35bfe1994693ceb3a17c391843f285acb89d084a3f72e