[INFO] updating cached repository tsinghqs/Rust-Guessing-Game
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/tsinghqs/Rust-Guessing-Game
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/tsinghqs/Rust-Guessing-Game" "work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/tsinghqs/Rust-Guessing-Game"`
[INFO] [stderr] Cloning into 'work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/tsinghqs/Rust-Guessing-Game'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/tsinghqs/Rust-Guessing-Game" "work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/tsinghqs/Rust-Guessing-Game"`
[INFO] [stderr] Cloning into 'work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/tsinghqs/Rust-Guessing-Game'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] abe36a1c1daa9e2b75662765d57e8371e4a1f099
[INFO] sha for GitHub repo tsinghqs/Rust-Guessing-Game: abe36a1c1daa9e2b75662765d57e8371e4a1f099
[INFO] validating manifest of tsinghqs/Rust-Guessing-Game on toolchain master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of tsinghqs/Rust-Guessing-Game on toolchain try#7fea0229842e79db1159ea58ad9a653b288efee9
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing tsinghqs/Rust-Guessing-Game
[INFO] finished frobbing tsinghqs/Rust-Guessing-Game
[INFO] frobbed toml for tsinghqs/Rust-Guessing-Game written to work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/tsinghqs/Rust-Guessing-Game/Cargo.toml
[INFO] started frobbing tsinghqs/Rust-Guessing-Game
[INFO] finished frobbing tsinghqs/Rust-Guessing-Game
[INFO] frobbed toml for tsinghqs/Rust-Guessing-Game written to work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/tsinghqs/Rust-Guessing-Game/Cargo.toml
[INFO] crate tsinghqs/Rust-Guessing-Game has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing tsinghqs/Rust-Guessing-Game against try#7fea0229842e79db1159ea58ad9a653b288efee9 for pr-57967
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-3/try#7fea0229842e79db1159ea58ad9a653b288efee9:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/tsinghqs/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=forbid" "-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" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "build" "--frozen"`
[INFO] [stdout] 4544ecebdbb55f8f828a5e9714e11fc0522309c0f268c0381a93ffa8f4317284
[INFO] running `"docker" "start" "-a" "4544ecebdbb55f8f828a5e9714e11fc0522309c0f268c0381a93ffa8f4317284"`
[INFO] [stderr]    Compiling rand v0.5.1
[INFO] [stderr]    Compiling RustPractice v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: crate `RustPractice` should have a snake case name
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(non_snake_case)] on by default
[INFO] [stderr]   = help: convert the identifier to snake case: `rust_practice`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.91s
[INFO] running `"docker" "inspect" "4544ecebdbb55f8f828a5e9714e11fc0522309c0f268c0381a93ffa8f4317284"`
[INFO] running `"docker" "rm" "-f" "4544ecebdbb55f8f828a5e9714e11fc0522309c0f268c0381a93ffa8f4317284"`
[INFO] [stdout] 4544ecebdbb55f8f828a5e9714e11fc0522309c0f268c0381a93ffa8f4317284
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-3/try#7fea0229842e79db1159ea58ad9a653b288efee9:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/tsinghqs/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=forbid" "-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" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "test" "--frozen" "--no-run"`
[INFO] [stdout] 07a89c13ce0e1cae63110a3e009e0ddd034d2a02b7a2f4ae14327ef25e3140b7
[INFO] running `"docker" "start" "-a" "07a89c13ce0e1cae63110a3e009e0ddd034d2a02b7a2f4ae14327ef25e3140b7"`
[INFO] [stderr]    Compiling RustPractice v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: crate `RustPractice` should have a snake case name
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(non_snake_case)] on by default
[INFO] [stderr]   = help: convert the identifier to snake case: `rust_practice`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.70s
[INFO] running `"docker" "inspect" "07a89c13ce0e1cae63110a3e009e0ddd034d2a02b7a2f4ae14327ef25e3140b7"`
[INFO] running `"docker" "rm" "-f" "07a89c13ce0e1cae63110a3e009e0ddd034d2a02b7a2f4ae14327ef25e3140b7"`
[INFO] [stdout] 07a89c13ce0e1cae63110a3e009e0ddd034d2a02b7a2f4ae14327ef25e3140b7
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-3/try#7fea0229842e79db1159ea58ad9a653b288efee9:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/tsinghqs/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=forbid" "-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" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "test" "--frozen"`
[INFO] [stdout] dddbd0c377d73ba011329e2a0d6dbec10d84c632a3ef92b321930a5ffe5e0136
[INFO] running `"docker" "start" "-a" "dddbd0c377d73ba011329e2a0d6dbec10d84c632a3ef92b321930a5ffe5e0136"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/RustPractice-b57dce3eee704679
[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" "dddbd0c377d73ba011329e2a0d6dbec10d84c632a3ef92b321930a5ffe5e0136"`
[INFO] running `"docker" "rm" "-f" "dddbd0c377d73ba011329e2a0d6dbec10d84c632a3ef92b321930a5ffe5e0136"`
[INFO] [stdout] dddbd0c377d73ba011329e2a0d6dbec10d84c632a3ef92b321930a5ffe5e0136