[INFO] crate mammoth 0.0.0 is already in cache
[INFO] extracting crate mammoth 0.0.0 into work/ex/beta-1.38-1/sources/1.37.0/reg/mammoth/0.0.0
[INFO] extracting crate mammoth 0.0.0 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/mammoth/0.0.0
[INFO] validating manifest of mammoth-0.0.0 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 mammoth-0.0.0 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 mammoth-0.0.0
[INFO] finished frobbing mammoth-0.0.0
[INFO] frobbed toml for mammoth-0.0.0 written to work/ex/beta-1.38-1/sources/1.37.0/reg/mammoth/0.0.0/Cargo.toml
[INFO] started frobbing mammoth-0.0.0
[INFO] finished frobbing mammoth-0.0.0
[INFO] frobbed toml for mammoth-0.0.0 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/mammoth/0.0.0/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 mammoth-0.0.0 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/mammoth/0.0.0:/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-2019-08-13" "build" "--frozen"`
[INFO] [stdout] 556c9d2ff7153e6c1fc97b381c2a9faafb2dc932fdc1122417e64beb8fa12648
[INFO] running `"docker" "start" "-a" "556c9d2ff7153e6c1fc97b381c2a9faafb2dc932fdc1122417e64beb8fa12648"`
[INFO] [stderr]    Compiling mammoth v0.0.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.26s
[INFO] running `"docker" "inspect" "556c9d2ff7153e6c1fc97b381c2a9faafb2dc932fdc1122417e64beb8fa12648"`
[INFO] running `"docker" "rm" "-f" "556c9d2ff7153e6c1fc97b381c2a9faafb2dc932fdc1122417e64beb8fa12648"`
[INFO] [stdout] 556c9d2ff7153e6c1fc97b381c2a9faafb2dc932fdc1122417e64beb8fa12648
[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/mammoth/0.0.0:/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-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] 76f3a060168513677a50f892ce81518bd9e0b7d9c9893fe70fa3b31545c5c7be
[INFO] running `"docker" "start" "-a" "76f3a060168513677a50f892ce81518bd9e0b7d9c9893fe70fa3b31545c5c7be"`
[INFO] [stderr]    Compiling mammoth v0.0.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.39s
[INFO] running `"docker" "inspect" "76f3a060168513677a50f892ce81518bd9e0b7d9c9893fe70fa3b31545c5c7be"`
[INFO] running `"docker" "rm" "-f" "76f3a060168513677a50f892ce81518bd9e0b7d9c9893fe70fa3b31545c5c7be"`
[INFO] [stdout] 76f3a060168513677a50f892ce81518bd9e0b7d9c9893fe70fa3b31545c5c7be
[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/mammoth/0.0.0:/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-2019-08-13" "test" "--frozen"`
[INFO] [stdout] d1bf1811743950b3f39c86374758db750f08d6aa1dbd754425cb8156dcca8aa1
[INFO] running `"docker" "start" "-a" "d1bf1811743950b3f39c86374758db750f08d6aa1dbd754425cb8156dcca8aa1"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/mammoth-367cca02d1bd1925
[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" "d1bf1811743950b3f39c86374758db750f08d6aa1dbd754425cb8156dcca8aa1"`
[INFO] running `"docker" "rm" "-f" "d1bf1811743950b3f39c86374758db750f08d6aa1dbd754425cb8156dcca8aa1"`
[INFO] [stdout] d1bf1811743950b3f39c86374758db750f08d6aa1dbd754425cb8156dcca8aa1