[INFO] updating cached repository cthdarren/roulette
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/cthdarren/roulette
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/cthdarren/roulette" "work/ex/beta-1.38-1/sources/1.37.0/gh/cthdarren/roulette"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/cthdarren/roulette'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/cthdarren/roulette" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/cthdarren/roulette"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/cthdarren/roulette'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 929fab80481f2625a4540342b5c1707a2c5640a7
[INFO] sha for GitHub repo cthdarren/roulette: 929fab80481f2625a4540342b5c1707a2c5640a7
[INFO] validating manifest of cthdarren/roulette 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 cthdarren/roulette 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 cthdarren/roulette
[INFO] finished frobbing cthdarren/roulette
[INFO] frobbed toml for cthdarren/roulette written to work/ex/beta-1.38-1/sources/1.37.0/gh/cthdarren/roulette/Cargo.toml
[INFO] started frobbing cthdarren/roulette
[INFO] finished frobbing cthdarren/roulette
[INFO] frobbed toml for cthdarren/roulette written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/cthdarren/roulette/Cargo.toml
[INFO] crate cthdarren/roulette 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 cthdarren/roulette against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/cthdarren/roulette:/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" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] 2e53c62d067151cf69a0b6952e5c1e683c1d3ab056f5e7f299b4a696c62273e7
[INFO] running `"docker" "start" "-a" "2e53c62d067151cf69a0b6952e5c1e683c1d3ab056f5e7f299b4a696c62273e7"`
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling rand v0.3.23
[INFO] [stderr]    Compiling roulette v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: value assigned to `win` is never read
[INFO] [stderr]   --> src/main.rs:14:11
[INFO] [stderr]    |
[INFO] [stderr] 14 |         let mut win = false;
[INFO] [stderr]    |                 ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.28s
[INFO] running `"docker" "inspect" "2e53c62d067151cf69a0b6952e5c1e683c1d3ab056f5e7f299b4a696c62273e7"`
[INFO] running `"docker" "rm" "-f" "2e53c62d067151cf69a0b6952e5c1e683c1d3ab056f5e7f299b4a696c62273e7"`
[INFO] [stdout] 2e53c62d067151cf69a0b6952e5c1e683c1d3ab056f5e7f299b4a696c62273e7
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/cthdarren/roulette:/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" "+beta-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] a0fbbd0673ec27812509e322958575f240a1464c439f132facbd29f9cbc6ce70
[INFO] running `"docker" "start" "-a" "a0fbbd0673ec27812509e322958575f240a1464c439f132facbd29f9cbc6ce70"`
[INFO] [stderr]    Compiling roulette v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: value assigned to `win` is never read
[INFO] [stderr]   --> src/main.rs:14:11
[INFO] [stderr]    |
[INFO] [stderr] 14 |         let mut win = false;
[INFO] [stderr]    |                 ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.65s
[INFO] running `"docker" "inspect" "a0fbbd0673ec27812509e322958575f240a1464c439f132facbd29f9cbc6ce70"`
[INFO] running `"docker" "rm" "-f" "a0fbbd0673ec27812509e322958575f240a1464c439f132facbd29f9cbc6ce70"`
[INFO] [stdout] a0fbbd0673ec27812509e322958575f240a1464c439f132facbd29f9cbc6ce70
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/cthdarren/roulette:/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" "+beta-2019-08-13" "test" "--frozen"`
[INFO] [stdout] ed7c35fd13ca4ad2a815c81dad6141166d0f9d7395bf209011d6d018cafe37bb
[INFO] running `"docker" "start" "-a" "ed7c35fd13ca4ad2a815c81dad6141166d0f9d7395bf209011d6d018cafe37bb"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/roulette-a4db94546fa582c8
[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" "ed7c35fd13ca4ad2a815c81dad6141166d0f9d7395bf209011d6d018cafe37bb"`
[INFO] running `"docker" "rm" "-f" "ed7c35fd13ca4ad2a815c81dad6141166d0f9d7395bf209011d6d018cafe37bb"`
[INFO] [stdout] ed7c35fd13ca4ad2a815c81dad6141166d0f9d7395bf209011d6d018cafe37bb