[INFO] updating cached repository johnathan79717/guessing_game [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/johnathan79717/guessing_game [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/johnathan79717/guessing_game" "work/ex/beta-1.38-1/sources/1.37.0/gh/johnathan79717/guessing_game"` [INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/johnathan79717/guessing_game'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/johnathan79717/guessing_game" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/johnathan79717/guessing_game"` [INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/johnathan79717/guessing_game'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 2b18e2595c46fd88aac1b694c0e8891eb7ddbfbd [INFO] sha for GitHub repo johnathan79717/guessing_game: 2b18e2595c46fd88aac1b694c0e8891eb7ddbfbd [INFO] validating manifest of johnathan79717/guessing_game 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 johnathan79717/guessing_game 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 johnathan79717/guessing_game [INFO] finished frobbing johnathan79717/guessing_game [INFO] frobbed toml for johnathan79717/guessing_game written to work/ex/beta-1.38-1/sources/1.37.0/gh/johnathan79717/guessing_game/Cargo.toml [INFO] started frobbing johnathan79717/guessing_game [INFO] finished frobbing johnathan79717/guessing_game [INFO] frobbed toml for johnathan79717/guessing_game written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/johnathan79717/guessing_game/Cargo.toml [INFO] crate johnathan79717/guessing_game 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 johnathan79717/guessing_game against 1.37.0 for beta-1.38-1 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/johnathan79717/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" "+1.37.0" "build" "--frozen"` [INFO] [stdout] 61ed60d10ece0ecd640828c44d938aa04387d7e3382a287e337cecb692f2de51 [INFO] running `"docker" "start" "-a" "61ed60d10ece0ecd640828c44d938aa04387d7e3382a287e337cecb692f2de51"` [INFO] [stderr] Compiling rand v0.3.15 [INFO] [stderr] Compiling guessing_game v0.1.0 (/opt/crater/workdir) [INFO] [stderr] error[E0308]: mismatched types [INFO] [stderr] --> src/main.rs:35:6 [INFO] [stderr] | [INFO] [stderr] 35 | (&mut None, b) => *b, [INFO] [stderr] | ^^^^^^^^^ expected enum `std::option::Option`, found &mut _ [INFO] [stderr] | [INFO] [stderr] = note: expected type `std::option::Option<&mut TreapNode<'a>>` [INFO] [stderr] found type `&mut _` [INFO] [stderr] [INFO] [stderr] error[E0308]: mismatched types [INFO] [stderr] --> src/main.rs:36:9 [INFO] [stderr] | [INFO] [stderr] 36 | (a, &mut None) => *a, [INFO] [stderr] | ^^^^^^^^^ expected enum `std::option::Option`, found &mut _ [INFO] [stderr] | [INFO] [stderr] = note: expected type `std::option::Option<&mut TreapNode<'a>>` [INFO] [stderr] found type `&mut _` [INFO] [stderr] [INFO] [stderr] error[E0308]: mismatched types [INFO] [stderr] --> src/main.rs:37:6 [INFO] [stderr] | [INFO] [stderr] 37 | (&mut Some(a), &mut Some(b)) => Some(a), [INFO] [stderr] | ^^^^^^^^^^^^ expected enum `std::option::Option`, found &mut _ [INFO] [stderr] | [INFO] [stderr] = note: expected type `std::option::Option<&mut TreapNode<'a>>` [INFO] [stderr] found type `&mut _` [INFO] [stderr] [INFO] [stderr] error[E0308]: mismatched types [INFO] [stderr] --> src/main.rs:37:20 [INFO] [stderr] | [INFO] [stderr] 37 | (&mut Some(a), &mut Some(b)) => Some(a), [INFO] [stderr] | ^^^^^^^^^^^^ expected enum `std::option::Option`, found &mut _ [INFO] [stderr] | [INFO] [stderr] = note: expected type `std::option::Option<&mut TreapNode<'a>>` [INFO] [stderr] found type `&mut _` [INFO] [stderr] [INFO] [stderr] error[E0614]: type `std::option::Option<&mut TreapNode<'a>>` cannot be dereferenced [INFO] [stderr] --> src/main.rs:35:23 [INFO] [stderr] | [INFO] [stderr] 35 | (&mut None, b) => *b, [INFO] [stderr] | ^^ [INFO] [stderr] [INFO] [stderr] error[E0614]: type `std::option::Option<&mut TreapNode<'a>>` cannot be dereferenced [INFO] [stderr] --> src/main.rs:36:23 [INFO] [stderr] | [INFO] [stderr] 36 | (a, &mut None) => *a, [INFO] [stderr] | ^^ [INFO] [stderr] [INFO] [stderr] error: aborting due to 6 previous errors [INFO] [stderr] [INFO] [stderr] Some errors have detailed explanations: E0308, E0614. [INFO] [stderr] For more information about an error, try `rustc --explain E0308`. [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" "61ed60d10ece0ecd640828c44d938aa04387d7e3382a287e337cecb692f2de51"` [INFO] running `"docker" "rm" "-f" "61ed60d10ece0ecd640828c44d938aa04387d7e3382a287e337cecb692f2de51"` [INFO] [stdout] 61ed60d10ece0ecd640828c44d938aa04387d7e3382a287e337cecb692f2de51