[INFO] updating cached repository https://github.com/johnathan79717/guessing_game [INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"` [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 2b18e2595c46fd88aac1b694c0e8891eb7ddbfbd [INFO] checking johnathan79717/guessing_game against try#e4dba30b9b475d8750370c4dfb49b6541990904d for pr-71393 [INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjohnathan79717%2Fguessing_game" "/workspace/builds/worker-4/source"` [INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/johnathan79717/guessing_game on toolchain e4dba30b9b475d8750370c4dfb49b6541990904d [INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "read-manifest" "--manifest-path" "Cargo.toml"` [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-4/source/Cargo.toml [INFO] crate git repo https://github.com/johnathan79717/guessing_game already has a lockfile, it will not be regenerated [INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "check" "--frozen" "--all" "--all-targets"` [INFO] [stdout] d2c92ac32c458993067df2d4dcadec1667a9d838d4349ae1caa4df1231a1d05a [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `"docker" "start" "-a" "d2c92ac32c458993067df2d4dcadec1667a9d838d4349ae1caa4df1231a1d05a"` [INFO] [stderr] Checking libc v0.2.17 [INFO] [stderr] Checking rand v0.3.15 [INFO] [stderr] Checking guessing_game v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] error[E0308]: mismatched types [INFO] [stderr] --> src/main.rs:35:6 [INFO] [stderr] | [INFO] [stderr] 34 | match (a, b) { [INFO] [stderr] | ------ this expression has type `(std::option::Option<&mut TreapNode<'a>>, std::option::Option<&mut TreapNode<'a>>)` [INFO] [stderr] 35 | (&mut None, b) => *b, [INFO] [stderr] | ^^^^^^^^^ expected enum `std::option::Option`, found `&mut _` [INFO] [stderr] | [INFO] [stderr] = note: expected enum `std::option::Option<&mut TreapNode<'a>>` [INFO] [stderr] found mutable reference `&mut _` [INFO] [stderr] [INFO] [stderr] error[E0308]: mismatched types [INFO] [stderr] --> src/main.rs:36:9 [INFO] [stderr] | [INFO] [stderr] 34 | match (a, b) { [INFO] [stderr] | ------ this expression has type `(std::option::Option<&mut TreapNode<'a>>, std::option::Option<&mut TreapNode<'a>>)` [INFO] [stderr] 35 | (&mut None, b) => *b, [INFO] [stderr] 36 | (a, &mut None) => *a, [INFO] [stderr] | ^^^^^^^^^ expected enum `std::option::Option`, found `&mut _` [INFO] [stderr] | [INFO] [stderr] = note: expected enum `std::option::Option<&mut TreapNode<'a>>` [INFO] [stderr] found mutable reference `&mut _` [INFO] [stderr] [INFO] [stderr] error[E0308]: mismatched types [INFO] [stderr] --> src/main.rs:37:6 [INFO] [stderr] | [INFO] [stderr] 34 | match (a, b) { [INFO] [stderr] | ------ this expression has type `(std::option::Option<&mut TreapNode<'a>>, std::option::Option<&mut TreapNode<'a>>)` [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 enum `std::option::Option<&mut TreapNode<'a>>` [INFO] [stderr] found mutable reference `&mut _` [INFO] [stderr] [INFO] [stderr] error[E0308]: mismatched types [INFO] [stderr] --> src/main.rs:37:20 [INFO] [stderr] | [INFO] [stderr] 34 | match (a, b) { [INFO] [stderr] | ------ this expression has type `(std::option::Option<&mut TreapNode<'a>>, std::option::Option<&mut TreapNode<'a>>)` [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 enum `std::option::Option<&mut TreapNode<'a>>` [INFO] [stderr] found mutable reference `&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[E0308]: mismatched types [INFO] [stderr] --> src/main.rs:35:6 [INFO] [stderr] | [INFO] [stderr] 34 | match (a, b) { [INFO] [stderr] | ------ this expression has type `(std::option::Option<&mut TreapNode<'a>>, std::option::Option<&mut TreapNode<'a>>)` [INFO] [stderr] 35 | (&mut None, b) => *b, [INFO] [stderr] | ^^^^^^^^^ expected enum `std::option::Option`, found `&mut _` [INFO] [stderr] | [INFO] [stderr] = note: expected enum `std::option::Option<&mut TreapNode<'a>>` [INFO] [stderr] found mutable reference `&mut _` [INFO] [stderr] [INFO] [stderr] error[E0308]: mismatched types [INFO] [stderr] --> src/main.rs:36:9 [INFO] [stderr] | [INFO] [stderr] 34 | match (a, b) { [INFO] [stderr] | ------ this expression has type `(std::option::Option<&mut TreapNode<'a>>, std::option::Option<&mut TreapNode<'a>>)` [INFO] [stderr] 35 | (&mut None, b) => *b, [INFO] [stderr] 36 | (a, &mut None) => *a, [INFO] [stderr] | ^^^^^^^^^ expected enum `std::option::Option`, found `&mut _` [INFO] [stderr] | [INFO] [stderr] = note: expected enum `std::option::Option<&mut TreapNode<'a>>` [INFO] [stderr] found mutable reference `&mut _` [INFO] [stderr] [INFO] [stderr] error[E0308]: mismatched types [INFO] [stderr] --> src/main.rs:37:6 [INFO] [stderr] | [INFO] [stderr] 34 | match (a, b) { [INFO] [stderr] | ------ this expression has type `(std::option::Option<&mut TreapNode<'a>>, std::option::Option<&mut TreapNode<'a>>)` [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 enum `std::option::Option<&mut TreapNode<'a>>` [INFO] [stderr] found mutable reference `&mut _` [INFO] [stderr] [INFO] [stderr] error[E0308]: mismatched types [INFO] [stderr] --> src/main.rs:37:20 [INFO] [stderr] | [INFO] [stderr] 34 | match (a, b) { [INFO] [stderr] | ------ this expression has type `(std::option::Option<&mut TreapNode<'a>>, std::option::Option<&mut TreapNode<'a>>)` [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 enum `std::option::Option<&mut TreapNode<'a>>` [INFO] [stderr] found mutable reference `&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] [stderr] warning: build failed, waiting for other jobs to finish... [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" "d2c92ac32c458993067df2d4dcadec1667a9d838d4349ae1caa4df1231a1d05a"` [INFO] running `"docker" "rm" "-f" "d2c92ac32c458993067df2d4dcadec1667a9d838d4349ae1caa4df1231a1d05a"` [INFO] [stdout] d2c92ac32c458993067df2d4dcadec1667a9d838d4349ae1caa4df1231a1d05a