[INFO] updating cached repository DenialAdams/prng_shootout
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/DenialAdams/prng_shootout
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/DenialAdams/prng_shootout" "work/ex/beta-1.38-1/sources/1.37.0/gh/DenialAdams/prng_shootout"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/DenialAdams/prng_shootout'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/DenialAdams/prng_shootout" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/DenialAdams/prng_shootout"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/DenialAdams/prng_shootout'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 621c5a1f2d974defeee19881486acbe9aec81761
[INFO] sha for GitHub repo DenialAdams/prng_shootout: 621c5a1f2d974defeee19881486acbe9aec81761
[INFO] validating manifest of DenialAdams/prng_shootout 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 DenialAdams/prng_shootout 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 DenialAdams/prng_shootout
[INFO] finished frobbing DenialAdams/prng_shootout
[INFO] frobbed toml for DenialAdams/prng_shootout written to work/ex/beta-1.38-1/sources/1.37.0/gh/DenialAdams/prng_shootout/Cargo.toml
[INFO] started frobbing DenialAdams/prng_shootout
[INFO] finished frobbing DenialAdams/prng_shootout
[INFO] frobbed toml for DenialAdams/prng_shootout written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/DenialAdams/prng_shootout/Cargo.toml
[INFO] crate DenialAdams/prng_shootout 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 DenialAdams/prng_shootout 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/DenialAdams/prng_shootout:/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] 27455bfa04018149f16790d7c66459c42a2198b232c43c8ea89b15c038908ee1
[INFO] running `"docker" "start" "-a" "27455bfa04018149f16790d7c66459c42a2198b232c43c8ea89b15c038908ee1"`
[INFO] [stderr]    Compiling prng_shootout v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: function is never used: `dilbert`
[INFO] [stderr]  --> src/main.rs:5:1
[INFO] [stderr]   |
[INFO] [stderr] 5 | fn dilbert() -> u64 {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.46s
[INFO] running `"docker" "inspect" "27455bfa04018149f16790d7c66459c42a2198b232c43c8ea89b15c038908ee1"`
[INFO] running `"docker" "rm" "-f" "27455bfa04018149f16790d7c66459c42a2198b232c43c8ea89b15c038908ee1"`
[INFO] [stdout] 27455bfa04018149f16790d7c66459c42a2198b232c43c8ea89b15c038908ee1
[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/DenialAdams/prng_shootout:/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] da202a2d99b921ada93d19f5a8d1a18c07c52e0f13ec4b59aafb2c8d1fcfd187
[INFO] running `"docker" "start" "-a" "da202a2d99b921ada93d19f5a8d1a18c07c52e0f13ec4b59aafb2c8d1fcfd187"`
[INFO] [stderr]    Compiling prng_shootout v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: function is never used: `dilbert`
[INFO] [stderr]  --> src/main.rs:5:1
[INFO] [stderr]   |
[INFO] [stderr] 5 | fn dilbert() -> u64 {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.47s
[INFO] running `"docker" "inspect" "da202a2d99b921ada93d19f5a8d1a18c07c52e0f13ec4b59aafb2c8d1fcfd187"`
[INFO] running `"docker" "rm" "-f" "da202a2d99b921ada93d19f5a8d1a18c07c52e0f13ec4b59aafb2c8d1fcfd187"`
[INFO] [stdout] da202a2d99b921ada93d19f5a8d1a18c07c52e0f13ec4b59aafb2c8d1fcfd187
[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/DenialAdams/prng_shootout:/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] bcafbfec4532e39df4e1988940c382b8e4e06f817f736a6de1a34396987b4d6a
[INFO] running `"docker" "start" "-a" "bcafbfec4532e39df4e1988940c382b8e4e06f817f736a6de1a34396987b4d6a"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/prng_shootout-9a8e2d8727e7d7a8
[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" "bcafbfec4532e39df4e1988940c382b8e4e06f817f736a6de1a34396987b4d6a"`
[INFO] running `"docker" "rm" "-f" "bcafbfec4532e39df4e1988940c382b8e4e06f817f736a6de1a34396987b4d6a"`
[INFO] [stdout] bcafbfec4532e39df4e1988940c382b8e4e06f817f736a6de1a34396987b4d6a