[INFO] cloning repository tsinghqs/Rust-Guessing-Game
[INFO] running `"git" "clone" "--bare" "git://github.com/tsinghqs/Rust-Guessing-Game.git" "work/cache/sources/gh/tsinghqs/Rust-Guessing-Game"`
[INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/tsinghqs/Rust-Guessing-Game'...
[INFO] running `"git" "clone" "work/cache/sources/gh/tsinghqs/Rust-Guessing-Game" "work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/tsinghqs/Rust-Guessing-Game"`
[INFO] [stderr] Cloning into 'work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/tsinghqs/Rust-Guessing-Game'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/tsinghqs/Rust-Guessing-Game" "work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/tsinghqs/Rust-Guessing-Game"`
[INFO] [stderr] Cloning into 'work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/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#c8865d8e195813ade6b84434ac9f8850e7112d1a
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of tsinghqs/Rust-Guessing-Game on toolchain try#e212b7d492c96d3837691ba29d32d5f468933fb8
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-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-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/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-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/tsinghqs/Rust-Guessing-Game/Cargo.toml
[INFO] crate tsinghqs/Rust-Guessing-Game already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing tsinghqs/Rust-Guessing-Game against master#c8865d8e195813ade6b84434ac9f8850e7112d1a for pr-61629
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-1/master#c8865d8e195813ade6b84434ac9f8850e7112d1a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/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" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "build" "--frozen"`
[INFO] [stdout] 2267fd58927334aa55900bc93d290e754165e93179a2545822f91fb5e738837e
[INFO] running `"docker" "start" "-a" "2267fd58927334aa55900bc93d290e754165e93179a2545822f91fb5e738837e"`
[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 4.10s
[INFO] running `"docker" "inspect" "2267fd58927334aa55900bc93d290e754165e93179a2545822f91fb5e738837e"`
[INFO] running `"docker" "rm" "-f" "2267fd58927334aa55900bc93d290e754165e93179a2545822f91fb5e738837e"`
[INFO] [stdout] 2267fd58927334aa55900bc93d290e754165e93179a2545822f91fb5e738837e
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-1/master#c8865d8e195813ade6b84434ac9f8850e7112d1a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/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" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "test" "--frozen" "--no-run"`
[INFO] [stdout] 2c33087c76b13af88874fc116fa37b2bb43043d28b5fa7249129ab2b3e6810ce
[INFO] running `"docker" "start" "-a" "2c33087c76b13af88874fc116fa37b2bb43043d28b5fa7249129ab2b3e6810ce"`
[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 0.76s
[INFO] running `"docker" "inspect" "2c33087c76b13af88874fc116fa37b2bb43043d28b5fa7249129ab2b3e6810ce"`
[INFO] running `"docker" "rm" "-f" "2c33087c76b13af88874fc116fa37b2bb43043d28b5fa7249129ab2b3e6810ce"`
[INFO] [stdout] 2c33087c76b13af88874fc116fa37b2bb43043d28b5fa7249129ab2b3e6810ce
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-1/master#c8865d8e195813ade6b84434ac9f8850e7112d1a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/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" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "test" "--frozen"`
[INFO] [stdout] 0261d0c9e7b7cd8fe9a1b0db95e7947525bd79665a5e72a963b827fd1e23238b
[INFO] running `"docker" "start" "-a" "0261d0c9e7b7cd8fe9a1b0db95e7947525bd79665a5e72a963b827fd1e23238b"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/RustPractice-a0a4bb786e415b9f
[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" "0261d0c9e7b7cd8fe9a1b0db95e7947525bd79665a5e72a963b827fd1e23238b"`
[INFO] running `"docker" "rm" "-f" "0261d0c9e7b7cd8fe9a1b0db95e7947525bd79665a5e72a963b827fd1e23238b"`
[INFO] [stdout] 0261d0c9e7b7cd8fe9a1b0db95e7947525bd79665a5e72a963b827fd1e23238b