[INFO] cloning repository b4284/guessing_game
[INFO] running `"git" "clone" "--bare" "git://github.com/b4284/guessing_game.git" "work/cache/sources/gh/b4284/guessing_game"`
[INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/b4284/guessing_game'...
[INFO] running `"git" "clone" "work/cache/sources/gh/b4284/guessing_game" "work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/b4284/guessing_game"`
[INFO] [stderr] Cloning into 'work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/b4284/guessing_game'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/b4284/guessing_game" "work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/b4284/guessing_game"`
[INFO] [stderr] Cloning into 'work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/b4284/guessing_game'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] c1780cdf1b0740d0297c46b50d131e91c6ae2bd8
[INFO] sha for GitHub repo b4284/guessing_game: c1780cdf1b0740d0297c46b50d131e91c6ae2bd8
[INFO] validating manifest of b4284/guessing_game on toolchain master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of b4284/guessing_game on toolchain try#8f81d0bf6baf07b92f1246696722485c4ca0b049
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing b4284/guessing_game
[INFO] finished frobbing b4284/guessing_game
[INFO] frobbed toml for b4284/guessing_game written to work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/b4284/guessing_game/Cargo.toml
[INFO] started frobbing b4284/guessing_game
[INFO] finished frobbing b4284/guessing_game
[INFO] frobbed toml for b4284/guessing_game written to work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/b4284/guessing_game/Cargo.toml
[INFO] crate b4284/guessing_game already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking b4284/guessing_game against master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1 for pr-62008
[INFO] running `"docker" "create" "-v" "/mnt/big/ec2-user/crater/work/local/target-dirs/pr-62008/worker-6/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1:/opt/crater/target:rw,Z" "-v" "/mnt/big/ec2-user/crater/work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/b4284/guessing_game:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/ec2-user/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/ec2-user/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" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 2fe5ed045e301018c56e9e5ced4482bba246104c0cdad127385dbb89ef3cd849
[INFO] running `"docker" "start" "-a" "2fe5ed045e301018c56e9e5ced4482bba246104c0cdad127385dbb89ef3cd849"`
[INFO] [stderr]     Checking guessing_game v0.0.1 (/opt/crater/workdir)
[INFO] [stderr] error[E0433]: failed to resolve: could not find `rand` in `std`
[INFO] [stderr]  --> src/main.rs:4:23
[INFO] [stderr]   |
[INFO] [stderr] 4 |     let secret = std::rand::random::<u8>() % 100 + 1;
[INFO] [stderr]   |                       ^^^^ could not find `rand` in `std`
[INFO] [stderr] 
[INFO] [stderr] error[E0061]: this function takes 1 parameter but 0 parameters were supplied
[INFO] [stderr]   --> src/main.rs:31:38
[INFO] [stderr]    |
[INFO] [stderr] 31 |         let input = std::io::stdin().read_line().ok().expect("shouldn't fail");
[INFO] [stderr]    |                                      ^^^^^^^^^ expected 1 parameter
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `trim` found for type `usize` in the current scope
[INFO] [stderr]   --> src/main.rs:32:21
[INFO] [stderr]    |
[INFO] [stderr] 32 |         match input.trim().parse::<u8>() {
[INFO] [stderr]    |                     ^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 3 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0061, E0433, E0599.
[INFO] [stderr] For more information about an error, try `rustc --explain E0061`.
[INFO] [stderr] error: Could not compile `guessing_game`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error[E0433]: failed to resolve: could not find `rand` in `std`
[INFO] [stderr]  --> src/main.rs:4:23
[INFO] [stderr]   |
[INFO] [stderr] 4 |     let secret = std::rand::random::<u8>() % 100 + 1;
[INFO] [stderr]   |                       ^^^^ could not find `rand` in `std`
[INFO] [stderr] 
[INFO] [stderr] error[E0061]: this function takes 1 parameter but 0 parameters were supplied
[INFO] [stderr]   --> src/main.rs:31:38
[INFO] [stderr]    |
[INFO] [stderr] 31 |         let input = std::io::stdin().read_line().ok().expect("shouldn't fail");
[INFO] [stderr]    |                                      ^^^^^^^^^ expected 1 parameter
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `trim` found for type `usize` in the current scope
[INFO] [stderr]   --> src/main.rs:32:21
[INFO] [stderr]    |
[INFO] [stderr] 32 |         match input.trim().parse::<u8>() {
[INFO] [stderr]    |                     ^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 3 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0061, E0433, E0599.
[INFO] [stderr] For more information about an error, try `rustc --explain E0061`.
[INFO] [stderr] error: Could not compile `guessing_game`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "2fe5ed045e301018c56e9e5ced4482bba246104c0cdad127385dbb89ef3cd849"`
[INFO] running `"docker" "rm" "-f" "2fe5ed045e301018c56e9e5ced4482bba246104c0cdad127385dbb89ef3cd849"`
[INFO] [stdout] 2fe5ed045e301018c56e9e5ced4482bba246104c0cdad127385dbb89ef3cd849