[INFO] updating cached repository https://github.com/domfoy/connect-four
[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] ba4ab33c45d7f0f36bb395251d3975f9e60a12f9
[INFO] checking domfoy/connect-four against try#e4dba30b9b475d8750370c4dfb49b6541990904d for pr-71393
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdomfoy%2Fconnect-four" "/workspace/builds/worker-0/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/domfoy/connect-four 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/domfoy/connect-four
[INFO] finished tweaking git repo https://github.com/domfoy/connect-four
[INFO] tweaked toml for git repo https://github.com/domfoy/connect-four written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/domfoy/connect-four 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-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] ff2446c6f3b057638590d27bc7ebe54a60dfc0cb143378bc7f8e22c3f634c4ac
[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" "ff2446c6f3b057638590d27bc7ebe54a60dfc0cb143378bc7f8e22c3f634c4ac"`
[INFO] [stderr]     Checking connect_four v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/board/inner.rs:53:23
[INFO] [stderr]    |
[INFO] [stderr] 53 |     let get_cell: Box<Fn(usize) -> &'a Cell> = match line_type {
[INFO] [stderr]    |                       ^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(usize) -> &'a Cell`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::mem::uninitialized': use `mem::MaybeUninit` instead
[INFO] [stderr]   --> src/board/mod.rs:19:30
[INFO] [stderr]    |
[INFO] [stderr] 19 |     let mut items: [_; $n] = mem::uninitialized();
[INFO] [stderr]    |                              ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 45 |       make_array!(BOARD_HEIGHT, || make_array!(BOARD_WIDTH, || Cell::new()))
[INFO] [stderr]    |       ---------------------------------------------------------------------- in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::mem::uninitialized': use `mem::MaybeUninit` instead
[INFO] [stderr]   --> src/board/mod.rs:19:30
[INFO] [stderr]    |
[INFO] [stderr] 19 |     let mut items: [_; $n] = mem::uninitialized();
[INFO] [stderr]    |                              ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 45 |       make_array!(BOARD_HEIGHT, || make_array!(BOARD_WIDTH, || Cell::new()))
[INFO] [stderr]    |                                    ---------------------------------------- in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/board/inner.rs:53:23
[INFO] [stderr]    |
[INFO] [stderr] 53 |     let get_cell: Box<Fn(usize) -> &'a Cell> = match line_type {
[INFO] [stderr]    |                       ^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(usize) -> &'a Cell`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::mem::uninitialized': use `mem::MaybeUninit` instead
[INFO] [stderr]   --> src/board/mod.rs:19:30
[INFO] [stderr]    |
[INFO] [stderr] 19 |     let mut items: [_; $n] = mem::uninitialized();
[INFO] [stderr]    |                              ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 45 |       make_array!(BOARD_HEIGHT, || make_array!(BOARD_WIDTH, || Cell::new()))
[INFO] [stderr]    |       ---------------------------------------------------------------------- in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::mem::uninitialized': use `mem::MaybeUninit` instead
[INFO] [stderr]   --> src/board/mod.rs:19:30
[INFO] [stderr]    |
[INFO] [stderr] 19 |     let mut items: [_; $n] = mem::uninitialized();
[INFO] [stderr]    |                              ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 45 |       make_array!(BOARD_HEIGHT, || make_array!(BOARD_WIDTH, || Cell::new()))
[INFO] [stderr]    |                                    ---------------------------------------- in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.92s
[INFO] running `"docker" "inspect" "ff2446c6f3b057638590d27bc7ebe54a60dfc0cb143378bc7f8e22c3f634c4ac"`
[INFO] running `"docker" "rm" "-f" "ff2446c6f3b057638590d27bc7ebe54a60dfc0cb143378bc7f8e22c3f634c4ac"`
[INFO] [stdout] ff2446c6f3b057638590d27bc7ebe54a60dfc0cb143378bc7f8e22c3f634c4ac