[INFO] updating cached repository aaronarduino/zipf-law
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/aaronarduino/zipf-law
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/aaronarduino/zipf-law" "work/ex/beta-1.38-1/sources/1.37.0/gh/aaronarduino/zipf-law"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/aaronarduino/zipf-law'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/aaronarduino/zipf-law" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/aaronarduino/zipf-law"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/aaronarduino/zipf-law'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 349ff0dacdc4342745e138da2cf1bbdbad676fbb
[INFO] sha for GitHub repo aaronarduino/zipf-law: 349ff0dacdc4342745e138da2cf1bbdbad676fbb
[INFO] validating manifest of aaronarduino/zipf-law 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 aaronarduino/zipf-law 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 aaronarduino/zipf-law
[INFO] finished frobbing aaronarduino/zipf-law
[INFO] frobbed toml for aaronarduino/zipf-law written to work/ex/beta-1.38-1/sources/1.37.0/gh/aaronarduino/zipf-law/Cargo.toml
[INFO] started frobbing aaronarduino/zipf-law
[INFO] finished frobbing aaronarduino/zipf-law
[INFO] frobbed toml for aaronarduino/zipf-law written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/aaronarduino/zipf-law/Cargo.toml
[INFO] crate aaronarduino/zipf-law 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 aaronarduino/zipf-law 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-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/aaronarduino/zipf-law:/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] a84c42f24f5a65a52666bbd94f9710848e98dda85eb32581b59daac586a3d608
[INFO] running `"docker" "start" "-a" "a84c42f24f5a65a52666bbd94f9710848e98dda85eb32581b59daac586a3d608"`
[INFO] [stderr]    Compiling libc v0.2.30
[INFO] [stderr]    Compiling thread_local v0.3.4
[INFO] [stderr]    Compiling memchr v1.0.1
[INFO] [stderr]    Compiling aho-corasick v0.6.3
[INFO] [stderr]    Compiling regex v0.2.2
[INFO] [stderr]    Compiling zipf-law v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.69s
[INFO] running `"docker" "inspect" "a84c42f24f5a65a52666bbd94f9710848e98dda85eb32581b59daac586a3d608"`
[INFO] running `"docker" "rm" "-f" "a84c42f24f5a65a52666bbd94f9710848e98dda85eb32581b59daac586a3d608"`
[INFO] [stdout] a84c42f24f5a65a52666bbd94f9710848e98dda85eb32581b59daac586a3d608
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/aaronarduino/zipf-law:/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] 2da38995de8e342eb28e85a24b3a118b7b373a5e6ac4b74af629042a423af554
[INFO] running `"docker" "start" "-a" "2da38995de8e342eb28e85a24b3a118b7b373a5e6ac4b74af629042a423af554"`
[INFO] [stderr]    Compiling zipf-law v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.80s
[INFO] running `"docker" "inspect" "2da38995de8e342eb28e85a24b3a118b7b373a5e6ac4b74af629042a423af554"`
[INFO] running `"docker" "rm" "-f" "2da38995de8e342eb28e85a24b3a118b7b373a5e6ac4b74af629042a423af554"`
[INFO] [stdout] 2da38995de8e342eb28e85a24b3a118b7b373a5e6ac4b74af629042a423af554
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/aaronarduino/zipf-law:/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] 8642c9d2a1769deebdf65ba7970ea5d844c152e715b98dbf914c323a210dbf95
[INFO] running `"docker" "start" "-a" "8642c9d2a1769deebdf65ba7970ea5d844c152e715b98dbf914c323a210dbf95"`
[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] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/zipf_law-0ee49d68e4306e76
[INFO] running `"docker" "inspect" "8642c9d2a1769deebdf65ba7970ea5d844c152e715b98dbf914c323a210dbf95"`
[INFO] running `"docker" "rm" "-f" "8642c9d2a1769deebdf65ba7970ea5d844c152e715b98dbf914c323a210dbf95"`
[INFO] [stdout] 8642c9d2a1769deebdf65ba7970ea5d844c152e715b98dbf914c323a210dbf95