[INFO] updating cached repository rrybarczyk/knapsack
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/rrybarczyk/knapsack
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/rrybarczyk/knapsack" "work/ex/beta-1.38-1/sources/1.37.0/gh/rrybarczyk/knapsack"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/rrybarczyk/knapsack'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/rrybarczyk/knapsack" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/rrybarczyk/knapsack"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/rrybarczyk/knapsack'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] fecac2a681c483c04fedfe5feee561e8a86684db
[INFO] sha for GitHub repo rrybarczyk/knapsack: fecac2a681c483c04fedfe5feee561e8a86684db
[INFO] validating manifest of rrybarczyk/knapsack 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 rrybarczyk/knapsack 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 rrybarczyk/knapsack
[INFO] finished frobbing rrybarczyk/knapsack
[INFO] frobbed toml for rrybarczyk/knapsack written to work/ex/beta-1.38-1/sources/1.37.0/gh/rrybarczyk/knapsack/Cargo.toml
[INFO] started frobbing rrybarczyk/knapsack
[INFO] finished frobbing rrybarczyk/knapsack
[INFO] frobbed toml for rrybarczyk/knapsack written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/rrybarczyk/knapsack/Cargo.toml
[INFO] crate rrybarczyk/knapsack 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 rrybarczyk/knapsack 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/rrybarczyk/knapsack:/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] cb4de3ddba085a75162076619dd1941fda3a964635102c0fa70e26b308bfc31a
[INFO] running `"docker" "start" "-a" "cb4de3ddba085a75162076619dd1941fda3a964635102c0fa70e26b308bfc31a"`
[INFO] [stderr]    Compiling libc v0.2.49
[INFO] [stderr]    Compiling memchr v2.2.0
[INFO] [stderr]    Compiling csv-core v0.1.5
[INFO] [stderr]    Compiling csv v1.0.5
[INFO] [stderr]    Compiling knapsack v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/mempool.rs:32:42
[INFO] [stderr]    |
[INFO] [stderr] 32 |     fn read_csv() -> Result<Vec<Tx>, Box<Error>> {
[INFO] [stderr]    |                                          ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.82s
[INFO] running `"docker" "inspect" "cb4de3ddba085a75162076619dd1941fda3a964635102c0fa70e26b308bfc31a"`
[INFO] running `"docker" "rm" "-f" "cb4de3ddba085a75162076619dd1941fda3a964635102c0fa70e26b308bfc31a"`
[INFO] [stdout] cb4de3ddba085a75162076619dd1941fda3a964635102c0fa70e26b308bfc31a
[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/rrybarczyk/knapsack:/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] f477f52579bca83ea1fa9944d1f2322f64ccc01782753b493b361dfbff3b6bce
[INFO] running `"docker" "start" "-a" "f477f52579bca83ea1fa9944d1f2322f64ccc01782753b493b361dfbff3b6bce"`
[INFO] [stderr]    Compiling knapsack v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/mempool.rs:32:42
[INFO] [stderr]    |
[INFO] [stderr] 32 |     fn read_csv() -> Result<Vec<Tx>, Box<Error>> {
[INFO] [stderr]    |                                          ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.12s
[INFO] running `"docker" "inspect" "f477f52579bca83ea1fa9944d1f2322f64ccc01782753b493b361dfbff3b6bce"`
[INFO] running `"docker" "rm" "-f" "f477f52579bca83ea1fa9944d1f2322f64ccc01782753b493b361dfbff3b6bce"`
[INFO] [stdout] f477f52579bca83ea1fa9944d1f2322f64ccc01782753b493b361dfbff3b6bce
[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/rrybarczyk/knapsack:/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] 2c13ab859df706e1eb2069cbd32266ede0f9631c96ca87c7833c54d9312896f9
[INFO] running `"docker" "start" "-a" "2c13ab859df706e1eb2069cbd32266ede0f9631c96ca87c7833c54d9312896f9"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/knapsack-229e4111a0cbc435
[INFO] [stderr]      Running /opt/crater/target/debug/deps/knapsack-daa9c490f3d600eb
[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] [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 knapsack
[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" "2c13ab859df706e1eb2069cbd32266ede0f9631c96ca87c7833c54d9312896f9"`
[INFO] running `"docker" "rm" "-f" "2c13ab859df706e1eb2069cbd32266ede0f9631c96ca87c7833c54d9312896f9"`
[INFO] [stdout] 2c13ab859df706e1eb2069cbd32266ede0f9631c96ca87c7833c54d9312896f9