[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] checking johnathan79717/guessing_game against master#7b3a7819371cef92a187e9bac8f7810ccde15216 for pr-74846 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjohnathan79717%2Fguessing_game" "/workspace/builds/worker-7/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/johnathan79717/guessing_game on toolchain 7b3a7819371cef92a187e9bac8f7810ccde15216 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7b3a7819371cef92a187e9bac8f7810ccde15216" "read-manifest" "--manifest-path" "Cargo.toml", 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-7/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" "+7b3a7819371cef92a187e9bac8f7810ccde15216" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+7b3a7819371cef92a187e9bac8f7810ccde15216" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 3fb1a046d3e07a9709a0fff115f63cba130e7a6ceff6cdc5e3c2630486331a27 [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" "3fb1a046d3e07a9709a0fff115f63cba130e7a6ceff6cdc5e3c2630486331a27", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "3fb1a046d3e07a9709a0fff115f63cba130e7a6ceff6cdc5e3c2630486331a27", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3fb1a046d3e07a9709a0fff115f63cba130e7a6ceff6cdc5e3c2630486331a27", kill_on_drop: false }` [INFO] [stdout] 3fb1a046d3e07a9709a0fff115f63cba130e7a6ceff6cdc5e3c2630486331a27 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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=forbid" "-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" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+7b3a7819371cef92a187e9bac8f7810ccde15216" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 5c27f5b8b807a69e2b1d515e3e79b79be424789b6d822b38c1f0880d7aedfe2b [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" "5c27f5b8b807a69e2b1d515e3e79b79be424789b6d822b38c1f0880d7aedfe2b", kill_on_drop: false }` [INFO] [stderr] Checking rand v0.3.15 [INFO] [stderr] Checking 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 `(std::option::Option<&mut TreapNode<'a>>, std::option::Option<&mut TreapNode<'a>>)` [INFO] [stdout] 35 | (&mut None, b) => *b, [INFO] [stdout] | ^^^^^^^^^ expected enum `std::option::Option`, found `&mut _` [INFO] [stdout] | [INFO] [stdout] = note: expected enum `std::option::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 `(std::option::Option<&mut TreapNode<'a>>, std::option::Option<&mut TreapNode<'a>>)` [INFO] [stdout] 35 | (&mut None, b) => *b, [INFO] [stdout] 36 | (a, &mut None) => *a, [INFO] [stdout] | ^^^^^^^^^ expected enum `std::option::Option`, found `&mut _` [INFO] [stdout] | [INFO] [stdout] = note: expected enum `std::option::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 `(std::option::Option<&mut TreapNode<'a>>, std::option::Option<&mut TreapNode<'a>>)` [INFO] [stdout] ... [INFO] [stdout] 37 | (&mut Some(a), &mut Some(b)) => Some(a), [INFO] [stdout] | ^^^^^^^^^^^^ expected enum `std::option::Option`, found `&mut _` [INFO] [stdout] | [INFO] [stdout] = note: expected enum `std::option::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 `(std::option::Option<&mut TreapNode<'a>>, std::option::Option<&mut TreapNode<'a>>)` [INFO] [stdout] ... [INFO] [stdout] 37 | (&mut Some(a), &mut Some(b)) => Some(a), [INFO] [stdout] | ^^^^^^^^^^^^ expected enum `std::option::Option`, found `&mut _` [INFO] [stdout] | [INFO] [stdout] = note: expected enum `std::option::Option<&mut TreapNode<'a>>` [INFO] [stdout] found mutable reference `&mut _` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0614]: type `std::option::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 `std::option::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`. [INFO] [stderr] [INFO] [stderr] To learn more, run the command again with --verbose. [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [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 `(std::option::Option<&mut TreapNode<'a>>, std::option::Option<&mut TreapNode<'a>>)` [INFO] [stdout] 35 | (&mut None, b) => *b, [INFO] [stdout] | ^^^^^^^^^ expected enum `std::option::Option`, found `&mut _` [INFO] [stdout] | [INFO] [stdout] = note: expected enum `std::option::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 `(std::option::Option<&mut TreapNode<'a>>, std::option::Option<&mut TreapNode<'a>>)` [INFO] [stdout] 35 | (&mut None, b) => *b, [INFO] [stdout] 36 | (a, &mut None) => *a, [INFO] [stdout] | ^^^^^^^^^ expected enum `std::option::Option`, found `&mut _` [INFO] [stdout] | [INFO] [stdout] = note: expected enum `std::option::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 `(std::option::Option<&mut TreapNode<'a>>, std::option::Option<&mut TreapNode<'a>>)` [INFO] [stdout] ... [INFO] [stdout] 37 | (&mut Some(a), &mut Some(b)) => Some(a), [INFO] [stdout] | ^^^^^^^^^^^^ expected enum `std::option::Option`, found `&mut _` [INFO] [stdout] | [INFO] [stdout] = note: expected enum `std::option::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 `(std::option::Option<&mut TreapNode<'a>>, std::option::Option<&mut TreapNode<'a>>)` [INFO] [stdout] ... [INFO] [stdout] 37 | (&mut Some(a), &mut Some(b)) => Some(a), [INFO] [stdout] | ^^^^^^^^^^^^ expected enum `std::option::Option`, found `&mut _` [INFO] [stdout] | [INFO] [stdout] = note: expected enum `std::option::Option<&mut TreapNode<'a>>` [INFO] [stdout] found mutable reference `&mut _` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0614]: type `std::option::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 `std::option::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: build failed [INFO] running `Command { std: "docker" "inspect" "5c27f5b8b807a69e2b1d515e3e79b79be424789b6d822b38c1f0880d7aedfe2b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5c27f5b8b807a69e2b1d515e3e79b79be424789b6d822b38c1f0880d7aedfe2b", kill_on_drop: false }` [INFO] [stdout] 5c27f5b8b807a69e2b1d515e3e79b79be424789b6d822b38c1f0880d7aedfe2b