[INFO] updating cached repository robinvd/k-sized-subset
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/robinvd/k-sized-subset
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/robinvd/k-sized-subset" "work/ex/beta-1.38-1/sources/1.37.0/gh/robinvd/k-sized-subset"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/robinvd/k-sized-subset'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/robinvd/k-sized-subset" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/robinvd/k-sized-subset"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/robinvd/k-sized-subset'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 2aacce04472950fb61693a4e6dfa67010658e7ca
[INFO] sha for GitHub repo robinvd/k-sized-subset: 2aacce04472950fb61693a4e6dfa67010658e7ca
[INFO] validating manifest of robinvd/k-sized-subset 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 robinvd/k-sized-subset 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 robinvd/k-sized-subset
[INFO] finished frobbing robinvd/k-sized-subset
[INFO] frobbed toml for robinvd/k-sized-subset written to work/ex/beta-1.38-1/sources/1.37.0/gh/robinvd/k-sized-subset/Cargo.toml
[INFO] started frobbing robinvd/k-sized-subset
[INFO] finished frobbing robinvd/k-sized-subset
[INFO] frobbed toml for robinvd/k-sized-subset written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/robinvd/k-sized-subset/Cargo.toml
[INFO] crate robinvd/k-sized-subset 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 robinvd/k-sized-subset 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-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/robinvd/k-sized-subset:/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] 9439ec2bcb2fbb3ff526eed19e78698a65e4b51f883c5be95c1656461be0b84a
[INFO] running `"docker" "start" "-a" "9439ec2bcb2fbb3ff526eed19e78698a65e4b51f883c5be95c1656461be0b84a"`
[INFO] [stderr]    Compiling num-traits v0.2.7
[INFO] [stderr]    Compiling num-integer v0.1.40
[INFO] [stderr]    Compiling nsubset v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.37s
[INFO] running `"docker" "inspect" "9439ec2bcb2fbb3ff526eed19e78698a65e4b51f883c5be95c1656461be0b84a"`
[INFO] running `"docker" "rm" "-f" "9439ec2bcb2fbb3ff526eed19e78698a65e4b51f883c5be95c1656461be0b84a"`
[INFO] [stdout] 9439ec2bcb2fbb3ff526eed19e78698a65e4b51f883c5be95c1656461be0b84a
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/robinvd/k-sized-subset:/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] 0c9e1fa4df6955db036b53f16dad6acf75cc51d6b1286aaeedc32602fd447caf
[INFO] running `"docker" "start" "-a" "0c9e1fa4df6955db036b53f16dad6acf75cc51d6b1286aaeedc32602fd447caf"`
[INFO] [stderr]    Compiling memchr v2.2.0
[INFO] [stderr]    Compiling syn v0.15.34
[INFO] [stderr]    Compiling crossbeam-utils v0.2.2
[INFO] [stderr]    Compiling num_cpus v1.10.0
[INFO] [stderr]    Compiling atty v0.2.11
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling serde_json v1.0.39
[INFO] [stderr]    Compiling criterion-plot v0.3.1
[INFO] [stderr]    Compiling rand_xoshiro v0.1.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.3.1
[INFO] [stderr]    Compiling crossbeam-deque v0.2.0
[INFO] [stderr]    Compiling csv-core v0.1.5
[INFO] [stderr]    Compiling rayon-core v1.4.1
[INFO] [stderr]    Compiling csv v1.0.7
[INFO] [stderr]    Compiling tinytemplate v1.0.2
[INFO] [stderr]    Compiling rayon v1.0.3
[INFO] [stderr]    Compiling serde_derive v1.0.91
[INFO] [stderr]    Compiling criterion v0.2.11
[INFO] [stderr]    Compiling nsubset v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 10s
[INFO] running `"docker" "inspect" "0c9e1fa4df6955db036b53f16dad6acf75cc51d6b1286aaeedc32602fd447caf"`
[INFO] running `"docker" "rm" "-f" "0c9e1fa4df6955db036b53f16dad6acf75cc51d6b1286aaeedc32602fd447caf"`
[INFO] [stdout] 0c9e1fa4df6955db036b53f16dad6acf75cc51d6b1286aaeedc32602fd447caf
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/robinvd/k-sized-subset:/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] c6304916708db4403a66a21ce338bce721216192b5e22e2ecb90ec5a8e6a96bf
[INFO] running `"docker" "start" "-a" "c6304916708db4403a66a21ce338bce721216192b5e22e2ecb90ec5a8e6a96bf"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/nsubset-b07f667a94540c57
[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/nsubset_bin-edab1824afe3d638
[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 nsubset
[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" "c6304916708db4403a66a21ce338bce721216192b5e22e2ecb90ec5a8e6a96bf"`
[INFO] running `"docker" "rm" "-f" "c6304916708db4403a66a21ce338bce721216192b5e22e2ecb90ec5a8e6a96bf"`
[INFO] [stdout] c6304916708db4403a66a21ce338bce721216192b5e22e2ecb90ec5a8e6a96bf