[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 1.59.0 for beta-1.60-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjohnathan79717%2Fguessing_game" "/workspace/builds/worker-10/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/johnathan79717/guessing_game on toolchain 1.59.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "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-10/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" "+1.59.0" "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-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bfcb9b65d6e2637a19c2594e57fc60d92b5d25b4780ac41904c73601185738cd
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "bfcb9b65d6e2637a19c2594e57fc60d92b5d25b4780ac41904c73601185738cd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bfcb9b65d6e2637a19c2594e57fc60d92b5d25b4780ac41904c73601185738cd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bfcb9b65d6e2637a19c2594e57fc60d92b5d25b4780ac41904c73601185738cd", kill_on_drop: false }`
[INFO] [stdout] bfcb9b65d6e2637a19c2594e57fc60d92b5d25b4780ac41904c73601185738cd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 25e88447ac3f78b3256134b10c687605f3497e332bb777b69a3a3f25955f583c
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "25e88447ac3f78b3256134b10c687605f3497e332bb777b69a3a3f25955f583c", kill_on_drop: false }`
[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] [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] [stderr] error: could not compile `guessing_game` due to 7 previous errors
[INFO] running `Command { std: "docker" "inspect" "25e88447ac3f78b3256134b10c687605f3497e332bb777b69a3a3f25955f583c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "25e88447ac3f78b3256134b10c687605f3497e332bb777b69a3a3f25955f583c", kill_on_drop: false }`
[INFO] [stdout] 25e88447ac3f78b3256134b10c687605f3497e332bb777b69a3a3f25955f583c