[INFO] updating cached repository cardil/rust-guessing-game
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/cardil/rust-guessing-game
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/cardil/rust-guessing-game" "work/ex/beta-1.37-6/sources/1.36.0/gh/cardil/rust-guessing-game"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/cardil/rust-guessing-game'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/cardil/rust-guessing-game" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/cardil/rust-guessing-game"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/cardil/rust-guessing-game'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] f326f0a23b4726d2590e83a7a98cafb08042b6b5
[INFO] sha for GitHub repo cardil/rust-guessing-game: f326f0a23b4726d2590e83a7a98cafb08042b6b5
[INFO] validating manifest of cardil/rust-guessing-game on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of cardil/rust-guessing-game on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing cardil/rust-guessing-game
[INFO] finished frobbing cardil/rust-guessing-game
[INFO] frobbed toml for cardil/rust-guessing-game written to work/ex/beta-1.37-6/sources/1.36.0/gh/cardil/rust-guessing-game/Cargo.toml
[INFO] started frobbing cardil/rust-guessing-game
[INFO] finished frobbing cardil/rust-guessing-game
[INFO] frobbed toml for cardil/rust-guessing-game written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/cardil/rust-guessing-game/Cargo.toml
[INFO] crate cardil/rust-guessing-game already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] testing cardil/rust-guessing-game against 1.36.0 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/cardil/rust-guessing-game:/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" "+1.36.0" "build" "--frozen"`
[INFO] [stdout] a1b7a9a4d8de9ead2e59d59b58f698f1b5c5944f99629b6ff8f8d6c71c4cefce
[INFO] running `"docker" "start" "-a" "a1b7a9a4d8de9ead2e59d59b58f698f1b5c5944f99629b6ff8f8d6c71c4cefce"`
[INFO] [stderr]    Compiling guessing_game v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: the item `Output` is imported redundantly
[INFO] [stderr]   --> src/main.rs:22:9
[INFO] [stderr]    |
[INFO] [stderr] 6  | use view::Output;
[INFO] [stderr]    |     ------------ the item `Output` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 22 |     use view::Output;
[INFO] [stderr]    |         ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.04s
[INFO] running `"docker" "inspect" "a1b7a9a4d8de9ead2e59d59b58f698f1b5c5944f99629b6ff8f8d6c71c4cefce"`
[INFO] running `"docker" "rm" "-f" "a1b7a9a4d8de9ead2e59d59b58f698f1b5c5944f99629b6ff8f8d6c71c4cefce"`
[INFO] [stdout] a1b7a9a4d8de9ead2e59d59b58f698f1b5c5944f99629b6ff8f8d6c71c4cefce
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/cardil/rust-guessing-game:/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" "+1.36.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] c13818ad350a0052630a9ec3e61d07f99e6893e493ceaf84ef834d4526f95aa3
[INFO] running `"docker" "start" "-a" "c13818ad350a0052630a9ec3e61d07f99e6893e493ceaf84ef834d4526f95aa3"`
[INFO] [stderr]    Compiling guessing_game v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `super::View`
[INFO] [stderr]   --> src/view.rs:77:7
[INFO] [stderr]    |
[INFO] [stderr] 77 |   use super::View;
[INFO] [stderr]    |       ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: the item `Output` is imported redundantly
[INFO] [stderr]   --> src/main.rs:22:9
[INFO] [stderr]    |
[INFO] [stderr] 6  | use view::Output;
[INFO] [stderr]    |     ------------ the item `Output` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 22 |     use view::Output;
[INFO] [stderr]    |         ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `out`
[INFO] [stderr]   --> src/view.rs:81:13
[INFO] [stderr]    |
[INFO] [stderr] 81 |     let mut out = String::new();
[INFO] [stderr]    |             ^^^ help: consider prefixing with an underscore: `_out`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/view.rs:81:9
[INFO] [stderr]    |
[INFO] [stderr] 81 |     let mut out = String::new();
[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 1.04s
[INFO] running `"docker" "inspect" "c13818ad350a0052630a9ec3e61d07f99e6893e493ceaf84ef834d4526f95aa3"`
[INFO] running `"docker" "rm" "-f" "c13818ad350a0052630a9ec3e61d07f99e6893e493ceaf84ef834d4526f95aa3"`
[INFO] [stdout] c13818ad350a0052630a9ec3e61d07f99e6893e493ceaf84ef834d4526f95aa3
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/cardil/rust-guessing-game:/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" "+1.36.0" "test" "--frozen"`
[INFO] [stdout] 18536e2c4348082b123b7bf6edaeea9ed095a3fd60a7681fc581acadc7524806
[INFO] running `"docker" "start" "-a" "18536e2c4348082b123b7bf6edaeea9ed095a3fd60a7681fc581acadc7524806"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/guessing_game-7388fa33df605bc8
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test game::tests::constr ... ok
[INFO] [stdout] test view::tests::test_print_win_in ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "18536e2c4348082b123b7bf6edaeea9ed095a3fd60a7681fc581acadc7524806"`
[INFO] running `"docker" "rm" "-f" "18536e2c4348082b123b7bf6edaeea9ed095a3fd60a7681fc581acadc7524806"`
[INFO] [stdout] 18536e2c4348082b123b7bf6edaeea9ed095a3fd60a7681fc581acadc7524806