[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 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] 7f32f619e93161b8348eb6c9cee58adb7b36aedb549c2fc09d506e9ab6f1034c
[INFO] running `"docker" "start" "-a" "7f32f619e93161b8348eb6c9cee58adb7b36aedb549c2fc09d506e9ab6f1034c"`
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling rand_core v0.4.2
[INFO] [stderr]    Compiling riscv v0.5.4
[INFO] [stderr]    Compiling riscv-rt v0.5.1 (/opt/crater/workdir)
[INFO] [stderr]    Compiling bit_field v0.9.0
[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 16.12s
[INFO] running `"docker" "inspect" "7f32f619e93161b8348eb6c9cee58adb7b36aedb549c2fc09d506e9ab6f1034c"`
[INFO] running `"docker" "rm" "-f" "7f32f619e93161b8348eb6c9cee58adb7b36aedb549c2fc09d506e9ab6f1034c"`
[INFO] [stdout] 7f32f619e93161b8348eb6c9cee58adb7b36aedb549c2fc09d506e9ab6f1034c
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] e9089ad98cbbcf175c0247202fa202bd085dd06dc1e4786cd4587939333bfaf9
[INFO] running `"docker" "start" "-a" "e9089ad98cbbcf175c0247202fa202bd085dd06dc1e4786cd4587939333bfaf9"`
[INFO] [stderr]    Compiling riscv-rt v0.5.1 (/opt/crater/workdir)
[INFO] [stderr] rustc: /checkout/src/llvm-project/llvm/include/llvm/Support/Casting.h:255: 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=73834825f22965a9 -C extra-filename=-73834825f22965a9 --out-dir /opt/crater/target/debug/deps -L dependency=/opt/crater/target/debug/deps --extern r0=/opt/crater/target/debug/deps/libr0-ad8e9ce2b15d4864.rlib --extern riscv=/opt/crater/target/debug/deps/libriscv-edbc9abf2e376520.rlib --extern riscv_rt_macros=/opt/crater/target/debug/deps/libriscv_rt_macros-d0a8c33a5476a1d0.so --cap-lints=warn -L /opt/crater/target/debug/build/riscv-rt-0df09c10e44e7c09/out` (signal: 6, SIGABRT: process abort signal)
[INFO] running `"docker" "inspect" "e9089ad98cbbcf175c0247202fa202bd085dd06dc1e4786cd4587939333bfaf9"`
[INFO] running `"docker" "rm" "-f" "e9089ad98cbbcf175c0247202fa202bd085dd06dc1e4786cd4587939333bfaf9"`
[INFO] [stdout] e9089ad98cbbcf175c0247202fa202bd085dd06dc1e4786cd4587939333bfaf9