[INFO] crate potassium 0.0.1 is already in cache
[INFO] extracting crate potassium 0.0.1 into work/ex/beta-1.38-1/sources/1.37.0/reg/potassium/0.0.1
[INFO] extracting crate potassium 0.0.1 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/potassium/0.0.1
[INFO] validating manifest of potassium-0.0.1 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 potassium-0.0.1 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 potassium-0.0.1
[INFO] finished frobbing potassium-0.0.1
[INFO] frobbed toml for potassium-0.0.1 written to work/ex/beta-1.38-1/sources/1.37.0/reg/potassium/0.0.1/Cargo.toml
[INFO] started frobbing potassium-0.0.1
[INFO] finished frobbing potassium-0.0.1
[INFO] frobbed toml for potassium-0.0.1 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/potassium/0.0.1/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 potassium-0.0.1 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-6/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/potassium/0.0.1:/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" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] 0239b0a5e551fe82dff1ed234d97532a7729377d9eb88eef83affed6842e3b26
[INFO] running `"docker" "start" "-a" "0239b0a5e551fe82dff1ed234d97532a7729377d9eb88eef83affed6842e3b26"`
[INFO] [stderr]    Compiling potassium v0.0.1 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.19s
[INFO] running `"docker" "inspect" "0239b0a5e551fe82dff1ed234d97532a7729377d9eb88eef83affed6842e3b26"`
[INFO] running `"docker" "rm" "-f" "0239b0a5e551fe82dff1ed234d97532a7729377d9eb88eef83affed6842e3b26"`
[INFO] [stdout] 0239b0a5e551fe82dff1ed234d97532a7729377d9eb88eef83affed6842e3b26
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/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/potassium/0.0.1:/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" "+beta-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] 35ce2f51b97cd1ff74f5f4144eff616d0141773c9ee94c08b70f31091c121acd
[INFO] running `"docker" "start" "-a" "35ce2f51b97cd1ff74f5f4144eff616d0141773c9ee94c08b70f31091c121acd"`
[INFO] [stderr]    Compiling potassium v0.0.1 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.50s
[INFO] running `"docker" "inspect" "35ce2f51b97cd1ff74f5f4144eff616d0141773c9ee94c08b70f31091c121acd"`
[INFO] running `"docker" "rm" "-f" "35ce2f51b97cd1ff74f5f4144eff616d0141773c9ee94c08b70f31091c121acd"`
[INFO] [stdout] 35ce2f51b97cd1ff74f5f4144eff616d0141773c9ee94c08b70f31091c121acd
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/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/potassium/0.0.1:/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" "+beta-2019-08-13" "test" "--frozen"`
[INFO] [stdout] e11acff0f0fddcd071be536561089682178738b5bf85f2f2da81eab472e27d75
[INFO] running `"docker" "start" "-a" "e11acff0f0fddcd071be536561089682178738b5bf85f2f2da81eab472e27d75"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/potassium-f7ead500d70a95fd
[INFO] [stderr]    Doc-tests potassium
[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] [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" "e11acff0f0fddcd071be536561089682178738b5bf85f2f2da81eab472e27d75"`
[INFO] running `"docker" "rm" "-f" "e11acff0f0fddcd071be536561089682178738b5bf85f2f2da81eab472e27d75"`
[INFO] [stdout] e11acff0f0fddcd071be536561089682178738b5bf85f2f2da81eab472e27d75