[INFO] cloning repository https://github.com/johnathan79717/guessing_game
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/johnathan79717/guessing_game" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjohnathan79717%2Fguessing_game", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjohnathan79717%2Fguessing_game'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2b18e2595c46fd88aac1b694c0e8891eb7ddbfbd
[INFO] testing johnathan79717/guessing_game against beta-2022-04-10 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjohnathan79717%2Fguessing_game" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/johnathan79717/guessing_game on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/johnathan79717/guessing_game
[INFO] finished tweaking git repo https://github.com/johnathan79717/guessing_game
[INFO] tweaked toml for git repo https://github.com/johnathan79717/guessing_game written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/johnathan79717/guessing_game already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5ab45cd5a9b7ec135d898aaca2eda1b0777edd573ab27622fab192785c471509
[INFO] running `Command { std: "docker" "start" "-a" "5ab45cd5a9b7ec135d898aaca2eda1b0777edd573ab27622fab192785c471509", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5ab45cd5a9b7ec135d898aaca2eda1b0777edd573ab27622fab192785c471509", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5ab45cd5a9b7ec135d898aaca2eda1b0777edd573ab27622fab192785c471509", kill_on_drop: false }`
[INFO] [stdout] 5ab45cd5a9b7ec135d898aaca2eda1b0777edd573ab27622fab192785c471509
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 79096752a0af85aae7feb59c622f8213473fcd2f5abb61d76eb8500f162c5949
[INFO] running `Command { std: "docker" "start" "-a" "79096752a0af85aae7feb59c622f8213473fcd2f5abb61d76eb8500f162c5949", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.17
[INFO] [stderr]    Compiling rand v0.3.15
[INFO] [stderr]    Compiling guessing_game v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/main.rs:35:6
[INFO] [stdout]    |
[INFO] [stdout] 34 |   match (a, b) {
[INFO] [stdout]    |         ------ this expression has type `(Option<&mut TreapNode<'a>>, Option<&mut TreapNode<'a>>)`
[INFO] [stdout] 35 |     (&mut None, b) => *b,
[INFO] [stdout]    |      ^^^^^^^^^ expected enum `Option`, found `&mut _`
[INFO] [stdout]    |
[INFO] [stdout]    = note:           expected enum `Option<&mut TreapNode<'a>>`
[INFO] [stdout]            found mutable reference `&mut _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/main.rs:36:9
[INFO] [stdout]    |
[INFO] [stdout] 34 |   match (a, b) {
[INFO] [stdout]    |         ------ this expression has type `(Option<&mut TreapNode<'a>>, Option<&mut TreapNode<'a>>)`
[INFO] [stdout] 35 |     (&mut None, b) => *b,
[INFO] [stdout] 36 |     (a, &mut None) => *a,
[INFO] [stdout]    |         ^^^^^^^^^ expected enum `Option`, found `&mut _`
[INFO] [stdout]    |
[INFO] [stdout]    = note:           expected enum `Option<&mut TreapNode<'a>>`
[INFO] [stdout]            found mutable reference `&mut _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/main.rs:37:6
[INFO] [stdout]    |
[INFO] [stdout] 34 |   match (a, b) {
[INFO] [stdout]    |         ------ this expression has type `(Option<&mut TreapNode<'a>>, Option<&mut TreapNode<'a>>)`
[INFO] [stdout] ...
[INFO] [stdout] 37 |     (&mut Some(a), &mut Some(b)) => Some(a),
[INFO] [stdout]    |      ^^^^^^^^^^^^ expected enum `Option`, found `&mut _`
[INFO] [stdout]    |
[INFO] [stdout]    = note:           expected enum `Option<&mut TreapNode<'a>>`
[INFO] [stdout]            found mutable reference `&mut _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/main.rs:37:20
[INFO] [stdout]    |
[INFO] [stdout] 34 |   match (a, b) {
[INFO] [stdout]    |         ------ this expression has type `(Option<&mut TreapNode<'a>>, Option<&mut TreapNode<'a>>)`
[INFO] [stdout] ...
[INFO] [stdout] 37 |     (&mut Some(a), &mut Some(b)) => Some(a),
[INFO] [stdout]    |                    ^^^^^^^^^^^^ expected enum `Option`, found `&mut _`
[INFO] [stdout]    |
[INFO] [stdout]    = note:           expected enum `Option<&mut TreapNode<'a>>`
[INFO] [stdout]            found mutable reference `&mut _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0614]: type `Option<&mut TreapNode<'a>>` cannot be dereferenced
[INFO] [stdout]   --> src/main.rs:35:23
[INFO] [stdout]    |
[INFO] [stdout] 35 |     (&mut None, b) => *b,
[INFO] [stdout]    |                       ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0614]: type `Option<&mut TreapNode<'a>>` cannot be dereferenced
[INFO] [stdout]   --> src/main.rs:36:23
[INFO] [stdout]    |
[INFO] [stdout] 36 |     (a, &mut None) => *a,
[INFO] [stdout]    |                       ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `guessing_game` due to 7 previous errors
[INFO] [stdout] error: aborting due to 6 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0308, E0614.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "79096752a0af85aae7feb59c622f8213473fcd2f5abb61d76eb8500f162c5949", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "79096752a0af85aae7feb59c622f8213473fcd2f5abb61d76eb8500f162c5949", kill_on_drop: false }`
[INFO] [stdout] 79096752a0af85aae7feb59c622f8213473fcd2f5abb61d76eb8500f162c5949