[INFO] updating cached repository UF-ACE/rust-mentor-activity
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/UF-ACE/rust-mentor-activity
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/UF-ACE/rust-mentor-activity" "work/ex/beta-1.38-1/sources/1.37.0/gh/UF-ACE/rust-mentor-activity"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/UF-ACE/rust-mentor-activity'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/UF-ACE/rust-mentor-activity" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/UF-ACE/rust-mentor-activity"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/UF-ACE/rust-mentor-activity'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] c48d7598a7e8e2fe7a068e445ee62328a20867ad
[INFO] sha for GitHub repo UF-ACE/rust-mentor-activity: c48d7598a7e8e2fe7a068e445ee62328a20867ad
[INFO] validating manifest of UF-ACE/rust-mentor-activity 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 UF-ACE/rust-mentor-activity 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 UF-ACE/rust-mentor-activity
[INFO] finished frobbing UF-ACE/rust-mentor-activity
[INFO] frobbed toml for UF-ACE/rust-mentor-activity written to work/ex/beta-1.38-1/sources/1.37.0/gh/UF-ACE/rust-mentor-activity/Cargo.toml
[INFO] started frobbing UF-ACE/rust-mentor-activity
[INFO] finished frobbing UF-ACE/rust-mentor-activity
[INFO] frobbed toml for UF-ACE/rust-mentor-activity written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/UF-ACE/rust-mentor-activity/Cargo.toml
[INFO] crate UF-ACE/rust-mentor-activity 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 UF-ACE/rust-mentor-activity 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-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/UF-ACE/rust-mentor-activity:/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] 2b999a7dae098edd3e663741f1e6433b04fe3acf031495d14280a50a91d6e35b
[INFO] running `"docker" "start" "-a" "2b999a7dae098edd3e663741f1e6433b04fe3acf031495d14280a50a91d6e35b"`
[INFO] [stderr]    Compiling clap v2.32.0
[INFO] [stderr]    Compiling rust-mentor-activity v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 15.56s
[INFO] running `"docker" "inspect" "2b999a7dae098edd3e663741f1e6433b04fe3acf031495d14280a50a91d6e35b"`
[INFO] running `"docker" "rm" "-f" "2b999a7dae098edd3e663741f1e6433b04fe3acf031495d14280a50a91d6e35b"`
[INFO] [stdout] 2b999a7dae098edd3e663741f1e6433b04fe3acf031495d14280a50a91d6e35b
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/UF-ACE/rust-mentor-activity:/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] 471ff6c562e48c65d3944f7699ffdc957390a8f606e35a6f69b21f3d2d6f337b
[INFO] running `"docker" "start" "-a" "471ff6c562e48c65d3944f7699ffdc957390a8f606e35a6f69b21f3d2d6f337b"`
[INFO] [stderr]    Compiling rust-mentor-activity v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.77s
[INFO] running `"docker" "inspect" "471ff6c562e48c65d3944f7699ffdc957390a8f606e35a6f69b21f3d2d6f337b"`
[INFO] running `"docker" "rm" "-f" "471ff6c562e48c65d3944f7699ffdc957390a8f606e35a6f69b21f3d2d6f337b"`
[INFO] [stdout] 471ff6c562e48c65d3944f7699ffdc957390a8f606e35a6f69b21f3d2d6f337b
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/UF-ACE/rust-mentor-activity:/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] 7e714b1e8fbd78c0d309986b67d4d4f6f619db79b10e1c0a9b1f154e17b8aebd
[INFO] running `"docker" "start" "-a" "7e714b1e8fbd78c0d309986b67d4d4f6f619db79b10e1c0a9b1f154e17b8aebd"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/rust_mentor_activity-67861fa4af431fc4
[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" "7e714b1e8fbd78c0d309986b67d4d4f6f619db79b10e1c0a9b1f154e17b8aebd"`
[INFO] running `"docker" "rm" "-f" "7e714b1e8fbd78c0d309986b67d4d4f6f619db79b10e1c0a9b1f154e17b8aebd"`
[INFO] [stdout] 7e714b1e8fbd78c0d309986b67d4d4f6f619db79b10e1c0a9b1f154e17b8aebd