[INFO] updating cached repository howeih/Day-30-Strassen-multiplication
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/howeih/Day-30-Strassen-multiplication
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/howeih/Day-30-Strassen-multiplication" "work/ex/beta-1.38-1/sources/1.37.0/gh/howeih/Day-30-Strassen-multiplication"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/howeih/Day-30-Strassen-multiplication'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/howeih/Day-30-Strassen-multiplication" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/howeih/Day-30-Strassen-multiplication"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/howeih/Day-30-Strassen-multiplication'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 6f8d722a91e269193891940b5a29e5a4a1f221ce
[INFO] sha for GitHub repo howeih/Day-30-Strassen-multiplication: 6f8d722a91e269193891940b5a29e5a4a1f221ce
[INFO] validating manifest of howeih/Day-30-Strassen-multiplication 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 howeih/Day-30-Strassen-multiplication 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 howeih/Day-30-Strassen-multiplication
[INFO] finished frobbing howeih/Day-30-Strassen-multiplication
[INFO] frobbed toml for howeih/Day-30-Strassen-multiplication written to work/ex/beta-1.38-1/sources/1.37.0/gh/howeih/Day-30-Strassen-multiplication/Cargo.toml
[INFO] started frobbing howeih/Day-30-Strassen-multiplication
[INFO] finished frobbing howeih/Day-30-Strassen-multiplication
[INFO] frobbed toml for howeih/Day-30-Strassen-multiplication written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/howeih/Day-30-Strassen-multiplication/Cargo.toml
[INFO] crate howeih/Day-30-Strassen-multiplication 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 howeih/Day-30-Strassen-multiplication 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-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/howeih/Day-30-Strassen-multiplication:/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] 421475635dac5cb5d89c3f19be3c0b8aed47436b00322fb08cf9162a76b303e8
[INFO] running `"docker" "start" "-a" "421475635dac5cb5d89c3f19be3c0b8aed47436b00322fb08cf9162a76b303e8"`
[INFO] [stderr]    Compiling ndarray v0.11.2
[INFO] [stderr]    Compiling itertools v0.7.8
[INFO] [stderr]    Compiling num-complex v0.1.43
[INFO] [stderr]    Compiling strassen v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.35s
[INFO] running `"docker" "inspect" "421475635dac5cb5d89c3f19be3c0b8aed47436b00322fb08cf9162a76b303e8"`
[INFO] running `"docker" "rm" "-f" "421475635dac5cb5d89c3f19be3c0b8aed47436b00322fb08cf9162a76b303e8"`
[INFO] [stdout] 421475635dac5cb5d89c3f19be3c0b8aed47436b00322fb08cf9162a76b303e8
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/howeih/Day-30-Strassen-multiplication:/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] 98fe93b56ea6680f8f4bed93917a46db5d6836f3249276a9019b9f1456492903
[INFO] running `"docker" "start" "-a" "98fe93b56ea6680f8f4bed93917a46db5d6836f3249276a9019b9f1456492903"`
[INFO] [stderr]    Compiling strassen v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.44s
[INFO] running `"docker" "inspect" "98fe93b56ea6680f8f4bed93917a46db5d6836f3249276a9019b9f1456492903"`
[INFO] running `"docker" "rm" "-f" "98fe93b56ea6680f8f4bed93917a46db5d6836f3249276a9019b9f1456492903"`
[INFO] [stdout] 98fe93b56ea6680f8f4bed93917a46db5d6836f3249276a9019b9f1456492903
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/howeih/Day-30-Strassen-multiplication:/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] b22fb34866b7c8fd2eb9b0e7e51c4f419cb3e4393e66951557119db86e6124d3
[INFO] running `"docker" "start" "-a" "b22fb34866b7c8fd2eb9b0e7e51c4f419cb3e4393e66951557119db86e6124d3"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/strassen-5484ac05e041410d
[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" "b22fb34866b7c8fd2eb9b0e7e51c4f419cb3e4393e66951557119db86e6124d3"`
[INFO] running `"docker" "rm" "-f" "b22fb34866b7c8fd2eb9b0e7e51c4f419cb3e4393e66951557119db86e6124d3"`
[INFO] [stdout] b22fb34866b7c8fd2eb9b0e7e51c4f419cb3e4393e66951557119db86e6124d3