[INFO] updating cached repository scrivenshafts/assignment_one
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/scrivenshafts/assignment_one
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/scrivenshafts/assignment_one" "work/ex/beta-1.38-1/sources/1.37.0/gh/scrivenshafts/assignment_one"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/scrivenshafts/assignment_one'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/scrivenshafts/assignment_one" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/scrivenshafts/assignment_one"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/scrivenshafts/assignment_one'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] d86043c46ba619be8890cd64c814f16690db777a
[INFO] sha for GitHub repo scrivenshafts/assignment_one: d86043c46ba619be8890cd64c814f16690db777a
[INFO] validating manifest of scrivenshafts/assignment_one 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 scrivenshafts/assignment_one 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 scrivenshafts/assignment_one
[INFO] finished frobbing scrivenshafts/assignment_one
[INFO] frobbed toml for scrivenshafts/assignment_one written to work/ex/beta-1.38-1/sources/1.37.0/gh/scrivenshafts/assignment_one/Cargo.toml
[INFO] started frobbing scrivenshafts/assignment_one
[INFO] finished frobbing scrivenshafts/assignment_one
[INFO] frobbed toml for scrivenshafts/assignment_one written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/scrivenshafts/assignment_one/Cargo.toml
[INFO] crate scrivenshafts/assignment_one 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 scrivenshafts/assignment_one 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-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/scrivenshafts/assignment_one:/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] d4c5bddf3419e9278195262864f0f4b8fdad322c9c6e45c769305192390d348a
[INFO] running `"docker" "start" "-a" "d4c5bddf3419e9278195262864f0f4b8fdad322c9c6e45c769305192390d348a"`
[INFO] [stderr]    Compiling assignment_one v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.00s
[INFO] running `"docker" "inspect" "d4c5bddf3419e9278195262864f0f4b8fdad322c9c6e45c769305192390d348a"`
[INFO] running `"docker" "rm" "-f" "d4c5bddf3419e9278195262864f0f4b8fdad322c9c6e45c769305192390d348a"`
[INFO] [stdout] d4c5bddf3419e9278195262864f0f4b8fdad322c9c6e45c769305192390d348a
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/scrivenshafts/assignment_one:/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] e395f4c43d3158694c3f7efe830b7a49730fdd2837f55896d3253fe8958830d3
[INFO] running `"docker" "start" "-a" "e395f4c43d3158694c3f7efe830b7a49730fdd2837f55896d3253fe8958830d3"`
[INFO] [stderr]    Compiling assignment_one v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.18s
[INFO] running `"docker" "inspect" "e395f4c43d3158694c3f7efe830b7a49730fdd2837f55896d3253fe8958830d3"`
[INFO] running `"docker" "rm" "-f" "e395f4c43d3158694c3f7efe830b7a49730fdd2837f55896d3253fe8958830d3"`
[INFO] [stdout] e395f4c43d3158694c3f7efe830b7a49730fdd2837f55896d3253fe8958830d3
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/scrivenshafts/assignment_one:/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] c0d45e8c1b49e42a845e1b9c1c97d59b2b3476ff47c08b477f76fbad50dd8d33
[INFO] running `"docker" "start" "-a" "c0d45e8c1b49e42a845e1b9c1c97d59b2b3476ff47c08b477f76fbad50dd8d33"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/assignment_one-2ec5fac6f1940108
[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]      Running /opt/crater/target/debug/deps/assignment_one-234690d016635944
[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]    Doc-tests assignment_one
[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" "c0d45e8c1b49e42a845e1b9c1c97d59b2b3476ff47c08b477f76fbad50dd8d33"`
[INFO] running `"docker" "rm" "-f" "c0d45e8c1b49e42a845e1b9c1c97d59b2b3476ff47c08b477f76fbad50dd8d33"`
[INFO] [stdout] c0d45e8c1b49e42a845e1b9c1c97d59b2b3476ff47c08b477f76fbad50dd8d33