[INFO] updating cached repository martindines/PlayingWithRust
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/martindines/PlayingWithRust
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/martindines/PlayingWithRust" "work/ex/beta-1.38-1/sources/1.37.0/gh/martindines/PlayingWithRust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/martindines/PlayingWithRust'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/martindines/PlayingWithRust" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/martindines/PlayingWithRust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/martindines/PlayingWithRust'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 4e551a44bb40534242827a793b7aca4162916201
[INFO] sha for GitHub repo martindines/PlayingWithRust: 4e551a44bb40534242827a793b7aca4162916201
[INFO] validating manifest of martindines/PlayingWithRust 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 martindines/PlayingWithRust 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 martindines/PlayingWithRust
[INFO] finished frobbing martindines/PlayingWithRust
[INFO] frobbed toml for martindines/PlayingWithRust written to work/ex/beta-1.38-1/sources/1.37.0/gh/martindines/PlayingWithRust/Cargo.toml
[INFO] started frobbing martindines/PlayingWithRust
[INFO] finished frobbing martindines/PlayingWithRust
[INFO] frobbed toml for martindines/PlayingWithRust written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/martindines/PlayingWithRust/Cargo.toml
[INFO] crate martindines/PlayingWithRust 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] [stderr] error: the lock file /mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/martindines/PlayingWithRust/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[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 martindines/PlayingWithRust 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-5/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/martindines/PlayingWithRust:/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] b72956fc589c28a739e74a95dec6dbee8150cd795ff4e83246162cd5a56e13af
[INFO] running `"docker" "start" "-a" "b72956fc589c28a739e74a95dec6dbee8150cd795ff4e83246162cd5a56e13af"`
[INFO] [stderr]    Compiling fun v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.14s
[INFO] running `"docker" "inspect" "b72956fc589c28a739e74a95dec6dbee8150cd795ff4e83246162cd5a56e13af"`
[INFO] running `"docker" "rm" "-f" "b72956fc589c28a739e74a95dec6dbee8150cd795ff4e83246162cd5a56e13af"`
[INFO] [stdout] b72956fc589c28a739e74a95dec6dbee8150cd795ff4e83246162cd5a56e13af
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/martindines/PlayingWithRust:/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] ddf0d3807331befabf5e10a5c934ac98ea052302a27d27cf53a429566891d405
[INFO] running `"docker" "start" "-a" "ddf0d3807331befabf5e10a5c934ac98ea052302a27d27cf53a429566891d405"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling fun v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.86s
[INFO] running `"docker" "inspect" "ddf0d3807331befabf5e10a5c934ac98ea052302a27d27cf53a429566891d405"`
[INFO] running `"docker" "rm" "-f" "ddf0d3807331befabf5e10a5c934ac98ea052302a27d27cf53a429566891d405"`
[INFO] [stdout] ddf0d3807331befabf5e10a5c934ac98ea052302a27d27cf53a429566891d405
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/martindines/PlayingWithRust:/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] dd98e934c98bd7937976a3cd9f3c6f56f8f2c3b4212e9f9df6fac43fe1eb46ed
[INFO] running `"docker" "start" "-a" "dd98e934c98bd7937976a3cd9f3c6f56f8f2c3b4212e9f9df6fac43fe1eb46ed"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/fun-a79f8c44e9a90374
[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" "dd98e934c98bd7937976a3cd9f3c6f56f8f2c3b4212e9f9df6fac43fe1eb46ed"`
[INFO] running `"docker" "rm" "-f" "dd98e934c98bd7937976a3cd9f3c6f56f8f2c3b4212e9f9df6fac43fe1eb46ed"`
[INFO] [stdout] dd98e934c98bd7937976a3cd9f3c6f56f8f2c3b4212e9f9df6fac43fe1eb46ed