[INFO] crate guardian 1.0.1 is already in cache
[INFO] extracting crate guardian 1.0.1 into work/ex/beta-1.38-1/sources/1.37.0/reg/guardian/1.0.1
[INFO] extracting crate guardian 1.0.1 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/guardian/1.0.1
[INFO] validating manifest of guardian-1.0.1 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 guardian-1.0.1 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 guardian-1.0.1
[INFO] finished frobbing guardian-1.0.1
[INFO] frobbed toml for guardian-1.0.1 written to work/ex/beta-1.38-1/sources/1.37.0/reg/guardian/1.0.1/Cargo.toml
[INFO] started frobbing guardian-1.0.1
[INFO] finished frobbing guardian-1.0.1
[INFO] frobbed toml for guardian-1.0.1 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/guardian/1.0.1/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 guardian-1.0.1 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-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/guardian/1.0.1:/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] fcfd4361c89037dac4461776818d4409dfb5446875184628e28183221be0d1d7
[INFO] running `"docker" "start" "-a" "fcfd4361c89037dac4461776818d4409dfb5446875184628e28183221be0d1d7"`
[INFO] [stderr]    Compiling guardian v1.0.1 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.25s
[INFO] running `"docker" "inspect" "fcfd4361c89037dac4461776818d4409dfb5446875184628e28183221be0d1d7"`
[INFO] running `"docker" "rm" "-f" "fcfd4361c89037dac4461776818d4409dfb5446875184628e28183221be0d1d7"`
[INFO] [stdout] fcfd4361c89037dac4461776818d4409dfb5446875184628e28183221be0d1d7
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/guardian/1.0.1:/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] 3dbdfb74ca618d3889b503b777d486dea0182986bb5eb6a7c9378f87f056aa94
[INFO] running `"docker" "start" "-a" "3dbdfb74ca618d3889b503b777d486dea0182986bb5eb6a7c9378f87f056aa94"`
[INFO] [stderr]    Compiling guardian v1.0.1 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.72s
[INFO] running `"docker" "inspect" "3dbdfb74ca618d3889b503b777d486dea0182986bb5eb6a7c9378f87f056aa94"`
[INFO] running `"docker" "rm" "-f" "3dbdfb74ca618d3889b503b777d486dea0182986bb5eb6a7c9378f87f056aa94"`
[INFO] [stdout] 3dbdfb74ca618d3889b503b777d486dea0182986bb5eb6a7c9378f87f056aa94
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/guardian/1.0.1:/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"`
[INFO] [stdout] 384eef1754620d8edf1c74e4465b2f1c3982640866bf2f0d5b4f98f6584f8f2e
[INFO] running `"docker" "start" "-a" "384eef1754620d8edf1c74e4465b2f1c3982640866bf2f0d5b4f98f6584f8f2e"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/guardian-42129bd4d68a53f8
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test tests::rc_mu ... ok
[INFO] [stdout] test tests::rc_rw_write ... ok
[INFO] [stdout] test tests::arc_mu ... ok
[INFO] [stderr] error: process didn't exit successfully: `/opt/crater/target/debug/deps/guardian-42129bd4d68a53f8` (signal: 11, SIGSEGV: invalid memory reference)
[INFO] running `"docker" "inspect" "384eef1754620d8edf1c74e4465b2f1c3982640866bf2f0d5b4f98f6584f8f2e"`
[INFO] running `"docker" "rm" "-f" "384eef1754620d8edf1c74e4465b2f1c3982640866bf2f0d5b4f98f6584f8f2e"`
[INFO] [stdout] 384eef1754620d8edf1c74e4465b2f1c3982640866bf2f0d5b4f98f6584f8f2e