[INFO] updating cached repository prewk/subshift
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/prewk/subshift
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/prewk/subshift" "work/ex/beta-1.38-1/sources/1.37.0/gh/prewk/subshift"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/prewk/subshift'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/prewk/subshift" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/prewk/subshift"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/prewk/subshift'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 579454fe5c96e40c5a25c5703de4001c151fb236
[INFO] sha for GitHub repo prewk/subshift: 579454fe5c96e40c5a25c5703de4001c151fb236
[INFO] validating manifest of prewk/subshift 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 prewk/subshift 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 prewk/subshift
[INFO] finished frobbing prewk/subshift
[INFO] frobbed toml for prewk/subshift written to work/ex/beta-1.38-1/sources/1.37.0/gh/prewk/subshift/Cargo.toml
[INFO] started frobbing prewk/subshift
[INFO] finished frobbing prewk/subshift
[INFO] frobbed toml for prewk/subshift written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/prewk/subshift/Cargo.toml
[INFO] crate prewk/subshift already has a lockfile, it will not be regenerated
[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 prewk/subshift 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-3/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/prewk/subshift:/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] b6a436f8bc2c482adc98c985158faef7fa46b753dbe32074e3f387afc05a3b11
[INFO] running `"docker" "start" "-a" "b6a436f8bc2c482adc98c985158faef7fa46b753dbe32074e3f387afc05a3b11"`
[INFO] [stderr]    Compiling num-integer v0.1.33
[INFO] [stderr]    Compiling time v0.1.36
[INFO] [stderr]    Compiling num-iter v0.1.33
[INFO] [stderr]    Compiling num v0.1.37
[INFO] [stderr]    Compiling chrono v0.3.0
[INFO] [stderr]    Compiling subshift v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.66s
[INFO] running `"docker" "inspect" "b6a436f8bc2c482adc98c985158faef7fa46b753dbe32074e3f387afc05a3b11"`
[INFO] running `"docker" "rm" "-f" "b6a436f8bc2c482adc98c985158faef7fa46b753dbe32074e3f387afc05a3b11"`
[INFO] [stdout] b6a436f8bc2c482adc98c985158faef7fa46b753dbe32074e3f387afc05a3b11
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/prewk/subshift:/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] a04fb968bfa78a9665572c01e4e75a9ffe44a3d6e59f71b9327626be8174a764
[INFO] running `"docker" "start" "-a" "a04fb968bfa78a9665572c01e4e75a9ffe44a3d6e59f71b9327626be8174a764"`
[INFO] [stderr]    Compiling subshift v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.85s
[INFO] running `"docker" "inspect" "a04fb968bfa78a9665572c01e4e75a9ffe44a3d6e59f71b9327626be8174a764"`
[INFO] running `"docker" "rm" "-f" "a04fb968bfa78a9665572c01e4e75a9ffe44a3d6e59f71b9327626be8174a764"`
[INFO] [stdout] a04fb968bfa78a9665572c01e4e75a9ffe44a3d6e59f71b9327626be8174a764
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/prewk/subshift:/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] f7099a57a0379dc0f3cbb2aab63b939a6d54a650d42ca83c715353b24c39149f
[INFO] running `"docker" "start" "-a" "f7099a57a0379dc0f3cbb2aab63b939a6d54a650d42ca83c715353b24c39149f"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/subshift-21fc32da950d89f0
[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" "f7099a57a0379dc0f3cbb2aab63b939a6d54a650d42ca83c715353b24c39149f"`
[INFO] running `"docker" "rm" "-f" "f7099a57a0379dc0f3cbb2aab63b939a6d54a650d42ca83c715353b24c39149f"`
[INFO] [stdout] f7099a57a0379dc0f3cbb2aab63b939a6d54a650d42ca83c715353b24c39149f