[INFO] updating cached repository NoahTheDuke/rust_ackermann
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/NoahTheDuke/rust_ackermann
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/NoahTheDuke/rust_ackermann" "work/ex/beta-1.37-6/sources/1.36.0/gh/NoahTheDuke/rust_ackermann"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/NoahTheDuke/rust_ackermann'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/NoahTheDuke/rust_ackermann" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/NoahTheDuke/rust_ackermann"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/NoahTheDuke/rust_ackermann'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 5253f63b823de6ed03cb5f63bf028e1dd3cc3424
[INFO] sha for GitHub repo NoahTheDuke/rust_ackermann: 5253f63b823de6ed03cb5f63bf028e1dd3cc3424
[INFO] validating manifest of NoahTheDuke/rust_ackermann on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of NoahTheDuke/rust_ackermann on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing NoahTheDuke/rust_ackermann
[INFO] finished frobbing NoahTheDuke/rust_ackermann
[INFO] frobbed toml for NoahTheDuke/rust_ackermann written to work/ex/beta-1.37-6/sources/1.36.0/gh/NoahTheDuke/rust_ackermann/Cargo.toml
[INFO] started frobbing NoahTheDuke/rust_ackermann
[INFO] finished frobbing NoahTheDuke/rust_ackermann
[INFO] frobbed toml for NoahTheDuke/rust_ackermann written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/NoahTheDuke/rust_ackermann/Cargo.toml
[INFO] crate NoahTheDuke/rust_ackermann already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing NoahTheDuke/rust_ackermann against 1.36.0 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-6/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/NoahTheDuke/rust_ackermann:/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" "+1.36.0" "build" "--frozen"`
[INFO] [stdout] 15c020c80d3408eb27dd8158cb08596b21789d7d3e3ff61a86601d9806a3d392
[INFO] running `"docker" "start" "-a" "15c020c80d3408eb27dd8158cb08596b21789d7d3e3ff61a86601d9806a3d392"`
[INFO] [stderr]    Compiling libc v0.2.37
[INFO] [stderr]    Compiling time v0.1.39
[INFO] [stderr]    Compiling ackermann v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.22s
[INFO] running `"docker" "inspect" "15c020c80d3408eb27dd8158cb08596b21789d7d3e3ff61a86601d9806a3d392"`
[INFO] running `"docker" "rm" "-f" "15c020c80d3408eb27dd8158cb08596b21789d7d3e3ff61a86601d9806a3d392"`
[INFO] [stdout] 15c020c80d3408eb27dd8158cb08596b21789d7d3e3ff61a86601d9806a3d392
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-6/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/NoahTheDuke/rust_ackermann:/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" "+1.36.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] e6b7058f6960e801c079b7033ccdf55407d28389a107764aa138ad260640cfbb
[INFO] running `"docker" "start" "-a" "e6b7058f6960e801c079b7033ccdf55407d28389a107764aa138ad260640cfbb"`
[INFO] [stderr]    Compiling ackermann v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.03s
[INFO] running `"docker" "inspect" "e6b7058f6960e801c079b7033ccdf55407d28389a107764aa138ad260640cfbb"`
[INFO] running `"docker" "rm" "-f" "e6b7058f6960e801c079b7033ccdf55407d28389a107764aa138ad260640cfbb"`
[INFO] [stdout] e6b7058f6960e801c079b7033ccdf55407d28389a107764aa138ad260640cfbb
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-6/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/NoahTheDuke/rust_ackermann:/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" "+1.36.0" "test" "--frozen"`
[INFO] [stdout] f577c885d2dc9ec714c5ce6bbccca5271010552932d7a8eaa2497b50fc4a1dc9
[INFO] running `"docker" "start" "-a" "f577c885d2dc9ec714c5ce6bbccca5271010552932d7a8eaa2497b50fc4a1dc9"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/ackermann-f9ac9c09e0ec8207
[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" "f577c885d2dc9ec714c5ce6bbccca5271010552932d7a8eaa2497b50fc4a1dc9"`
[INFO] running `"docker" "rm" "-f" "f577c885d2dc9ec714c5ce6bbccca5271010552932d7a8eaa2497b50fc4a1dc9"`
[INFO] [stdout] f577c885d2dc9ec714c5ce6bbccca5271010552932d7a8eaa2497b50fc4a1dc9