[INFO] crate riscv-rt 0.5.1 is already in cache
[INFO] extracting crate riscv-rt 0.5.1 into work/ex/beta-1.38-1/sources/1.37.0/reg/riscv-rt/0.5.1
[INFO] extracting crate riscv-rt 0.5.1 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/riscv-rt/0.5.1
[INFO] validating manifest of riscv-rt-0.5.1 on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of riscv-rt-0.5.1 on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing riscv-rt-0.5.1
[INFO] finished frobbing riscv-rt-0.5.1
[INFO] frobbed toml for riscv-rt-0.5.1 written to work/ex/beta-1.38-1/sources/1.37.0/reg/riscv-rt/0.5.1/Cargo.toml
[INFO] started frobbing riscv-rt-0.5.1
[INFO] finished frobbing riscv-rt-0.5.1
[INFO] frobbed toml for riscv-rt-0.5.1 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/riscv-rt/0.5.1/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing riscv-rt-0.5.1 against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/riscv-rt/0.5.1:/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-2019-08-13" "build" "--frozen"`
[INFO] [stdout] 3c48c9aba7f725e7996f009212266942c77d6101abb4d9f92365c7a492f872fc
[INFO] running `"docker" "start" "-a" "3c48c9aba7f725e7996f009212266942c77d6101abb4d9f92365c7a492f872fc"`
[INFO] [stderr]    Compiling rand_core v0.4.2
[INFO] [stderr]    Compiling riscv v0.5.4
[INFO] [stderr]    Compiling bit_field v0.9.0
[INFO] [stderr]    Compiling riscv-rt v0.5.1 (/opt/crater/workdir)
[INFO] [stderr]    Compiling r0 v0.2.2
[INFO] [stderr]    Compiling bare-metal v0.2.4
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling rand v0.5.6
[INFO] [stderr]    Compiling riscv-rt-macros v0.1.6
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.29s
[INFO] running `"docker" "inspect" "3c48c9aba7f725e7996f009212266942c77d6101abb4d9f92365c7a492f872fc"`
[INFO] running `"docker" "rm" "-f" "3c48c9aba7f725e7996f009212266942c77d6101abb4d9f92365c7a492f872fc"`
[INFO] [stdout] 3c48c9aba7f725e7996f009212266942c77d6101abb4d9f92365c7a492f872fc
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/riscv-rt/0.5.1:/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-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] 58f552cb682d731bad7b2b635a979b643166904db2d4d6eff150ba9a2dd49c1b
[INFO] running `"docker" "start" "-a" "58f552cb682d731bad7b2b635a979b643166904db2d4d6eff150ba9a2dd49c1b"`
[INFO] [stderr]    Compiling riscv-rt v0.5.1 (/opt/crater/workdir)
[INFO] [stderr] rustc: /checkout/src/llvm-project/llvm/include/llvm/Support/Casting.h:264: typename cast_retty<X, Y *>::ret_type llvm::cast(Y *) [X = llvm::Function, Y = llvm::Value]: Assertion `isa<X>(Val) && "cast<Ty>() argument of incompatible type!"' failed.
[INFO] [stderr] error: Could not compile `riscv-rt`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name riscv_rt src/lib.rs --color never --emit=dep-info,link -C debuginfo=2 --test -C metadata=b227da986fde7cce -C extra-filename=-b227da986fde7cce --out-dir /opt/crater/target/debug/deps -L dependency=/opt/crater/target/debug/deps --extern r0=/opt/crater/target/debug/deps/libr0-ec707ca084291704.rlib --extern riscv=/opt/crater/target/debug/deps/libriscv-5a630646a8e4bbfe.rlib --extern riscv_rt_macros=/opt/crater/target/debug/deps/libriscv_rt_macros-e019f06408f50f63.so --cap-lints=warn -L /opt/crater/target/debug/build/riscv-rt-6f6d76ef41610d57/out` (signal: 6, SIGABRT: process abort signal)
[INFO] running `"docker" "inspect" "58f552cb682d731bad7b2b635a979b643166904db2d4d6eff150ba9a2dd49c1b"`
[INFO] running `"docker" "rm" "-f" "58f552cb682d731bad7b2b635a979b643166904db2d4d6eff150ba9a2dd49c1b"`
[INFO] [stdout] 58f552cb682d731bad7b2b635a979b643166904db2d4d6eff150ba9a2dd49c1b