[INFO] updating cached repository lukekrikorian/lottery
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/lukekrikorian/lottery
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/lukekrikorian/lottery" "work/ex/beta-1.38-1/sources/1.37.0/gh/lukekrikorian/lottery"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/lukekrikorian/lottery'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/lukekrikorian/lottery" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/lukekrikorian/lottery"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/lukekrikorian/lottery'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] f8eef9233a67ff12326e18c3202b5aaef2eda28a
[INFO] sha for GitHub repo lukekrikorian/lottery: f8eef9233a67ff12326e18c3202b5aaef2eda28a
[INFO] validating manifest of lukekrikorian/lottery 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 lukekrikorian/lottery 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 lukekrikorian/lottery
[INFO] finished frobbing lukekrikorian/lottery
[INFO] frobbed toml for lukekrikorian/lottery written to work/ex/beta-1.38-1/sources/1.37.0/gh/lukekrikorian/lottery/Cargo.toml
[INFO] started frobbing lukekrikorian/lottery
[INFO] finished frobbing lukekrikorian/lottery
[INFO] frobbed toml for lukekrikorian/lottery written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/lukekrikorian/lottery/Cargo.toml
[INFO] crate lukekrikorian/lottery 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 lukekrikorian/lottery 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-3/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/lukekrikorian/lottery:/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] ca607d911169e3b4dce4fe5842e7f3f0acccb0428b4b959dc3b9adc4f73abbdb
[INFO] running `"docker" "start" "-a" "ca607d911169e3b4dce4fe5842e7f3f0acccb0428b4b959dc3b9adc4f73abbdb"`
[INFO] [stderr]    Compiling libc v0.2.44
[INFO] [stderr]    Compiling rand_core v0.3.0
[INFO] [stderr]    Compiling rand_pcg v0.1.1
[INFO] [stderr]    Compiling rand_chacha v0.1.0
[INFO] [stderr]    Compiling rand v0.6.0
[INFO] [stderr]    Compiling rand_xorshift v0.1.0
[INFO] [stderr]    Compiling rand_isaac v0.1.0
[INFO] [stderr]    Compiling rand_hc v0.1.0
[INFO] [stderr]    Compiling lotto v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:28:21
[INFO] [stderr]    |
[INFO] [stderr] 28 |                 let mut index = i as usize;
[INFO] [stderr]    |                     ----^^^^^
[INFO] [stderr]    |                     |
[INFO] [stderr]    |                     help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.61s
[INFO] running `"docker" "inspect" "ca607d911169e3b4dce4fe5842e7f3f0acccb0428b4b959dc3b9adc4f73abbdb"`
[INFO] running `"docker" "rm" "-f" "ca607d911169e3b4dce4fe5842e7f3f0acccb0428b4b959dc3b9adc4f73abbdb"`
[INFO] [stdout] ca607d911169e3b4dce4fe5842e7f3f0acccb0428b4b959dc3b9adc4f73abbdb
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/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/lukekrikorian/lottery:/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] 5eef84c7f14a6b96f1d681838239a3b9d000c617e0f1ed7f114ed8f379e91b78
[INFO] running `"docker" "start" "-a" "5eef84c7f14a6b96f1d681838239a3b9d000c617e0f1ed7f114ed8f379e91b78"`
[INFO] [stderr]    Compiling lotto v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:28:21
[INFO] [stderr]    |
[INFO] [stderr] 28 |                 let mut index = i as usize;
[INFO] [stderr]    |                     ----^^^^^
[INFO] [stderr]    |                     |
[INFO] [stderr]    |                     help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.57s
[INFO] running `"docker" "inspect" "5eef84c7f14a6b96f1d681838239a3b9d000c617e0f1ed7f114ed8f379e91b78"`
[INFO] running `"docker" "rm" "-f" "5eef84c7f14a6b96f1d681838239a3b9d000c617e0f1ed7f114ed8f379e91b78"`
[INFO] [stdout] 5eef84c7f14a6b96f1d681838239a3b9d000c617e0f1ed7f114ed8f379e91b78
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/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/lukekrikorian/lottery:/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] 9f9253288b9b4a6112d8c4bb1cd0e2635c296c22d991933ee9a3939c5e495ace
[INFO] running `"docker" "start" "-a" "9f9253288b9b4a6112d8c4bb1cd0e2635c296c22d991933ee9a3939c5e495ace"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/lotto-7df115516e7b129b
[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" "9f9253288b9b4a6112d8c4bb1cd0e2635c296c22d991933ee9a3939c5e495ace"`
[INFO] running `"docker" "rm" "-f" "9f9253288b9b4a6112d8c4bb1cd0e2635c296c22d991933ee9a3939c5e495ace"`
[INFO] [stdout] 9f9253288b9b4a6112d8c4bb1cd0e2635c296c22d991933ee9a3939c5e495ace