[INFO] crate arcus 0.1.0 is already in cache
[INFO] extracting crate arcus 0.1.0 into work/ex/beta-1.38-1/sources/1.37.0/reg/arcus/0.1.0
[INFO] extracting crate arcus 0.1.0 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/arcus/0.1.0
[INFO] validating manifest of arcus-0.1.0 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 arcus-0.1.0 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 arcus-0.1.0
[INFO] finished frobbing arcus-0.1.0
[INFO] frobbed toml for arcus-0.1.0 written to work/ex/beta-1.38-1/sources/1.37.0/reg/arcus/0.1.0/Cargo.toml
[INFO] started frobbing arcus-0.1.0
[INFO] finished frobbing arcus-0.1.0
[INFO] frobbed toml for arcus-0.1.0 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/arcus/0.1.0/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 arcus-0.1.0 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-5/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/arcus/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] 076a04fc1149d5354efa0d00cfd49fd9b440491d54d00d84675ec6769b8c012f
[INFO] running `"docker" "start" "-a" "076a04fc1149d5354efa0d00cfd49fd9b440491d54d00d84675ec6769b8c012f"`
[INFO] [stderr]    Compiling arcus v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.37s
[INFO] running `"docker" "inspect" "076a04fc1149d5354efa0d00cfd49fd9b440491d54d00d84675ec6769b8c012f"`
[INFO] running `"docker" "rm" "-f" "076a04fc1149d5354efa0d00cfd49fd9b440491d54d00d84675ec6769b8c012f"`
[INFO] [stdout] 076a04fc1149d5354efa0d00cfd49fd9b440491d54d00d84675ec6769b8c012f
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/arcus/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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 64b8b2eb8c388e34e0f0dd2de0e64b9e26eee799e5ff38d0f41272b7f2b732f8
[INFO] running `"docker" "start" "-a" "64b8b2eb8c388e34e0f0dd2de0e64b9e26eee799e5ff38d0f41272b7f2b732f8"`
[INFO] [stderr]    Compiling arcus v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.48s
[INFO] running `"docker" "inspect" "64b8b2eb8c388e34e0f0dd2de0e64b9e26eee799e5ff38d0f41272b7f2b732f8"`
[INFO] running `"docker" "rm" "-f" "64b8b2eb8c388e34e0f0dd2de0e64b9e26eee799e5ff38d0f41272b7f2b732f8"`
[INFO] [stdout] 64b8b2eb8c388e34e0f0dd2de0e64b9e26eee799e5ff38d0f41272b7f2b732f8
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/arcus/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" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] b1705308a031100c8bdd66412029e005e6d1830e0e6745bc7099073c422460af
[INFO] running `"docker" "start" "-a" "b1705308a031100c8bdd66412029e005e6d1830e0e6745bc7099073c422460af"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/arcus-5228b4ea72648540
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "b1705308a031100c8bdd66412029e005e6d1830e0e6745bc7099073c422460af"`
[INFO] running `"docker" "rm" "-f" "b1705308a031100c8bdd66412029e005e6d1830e0e6745bc7099073c422460af"`
[INFO] [stdout] b1705308a031100c8bdd66412029e005e6d1830e0e6745bc7099073c422460af