[INFO] cloning repository https://github.com/Mortal/blokus
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Mortal/blokus" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMortal%2Fblokus"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMortal%2Fblokus'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] e93dca7e806c4c308ac1a0f927646b1cf59eb234
[INFO] checking Mortal/blokus against master#2748a9fd93dd1a00a4521f4f16de5befbf77f6cd for pr-62262-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMortal%2Fblokus" "/workspace/builds/worker-5/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Mortal/blokus on toolchain 2748a9fd93dd1a00a4521f4f16de5befbf77f6cd
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/Mortal/blokus
[INFO] finished tweaking git repo https://github.com/Mortal/blokus
[INFO] tweaked toml for git repo https://github.com/Mortal/blokus written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/Mortal/blokus already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"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" "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" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] a5ab7053be6a69147091f8438b7b5a5b8931a20d4b19854172a504d6c481ed70
[INFO] running `"docker" "start" "-a" "a5ab7053be6a69147091f8438b7b5a5b8931a20d4b19854172a504d6c481ed70"`
[INFO] [stderr]     Checking blokus v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/board.rs:274:29
[INFO] [stderr]     |
[INFO] [stderr] 274 |                     None => try!(write!(f, "\u{2591}\u{2591}")),
[INFO] [stderr]     |                             ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/board.rs:275:32
[INFO] [stderr]     |
[INFO] [stderr] 275 |                     Some(c) => try!(write!(f, "\x1B[{}m\u{2588}\u{2588}\x1B[0m", 31 + c)),
[INFO] [stderr]     |                                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/board.rs:278:13
[INFO] [stderr]     |
[INFO] [stderr] 278 |             try!(write!(f, "\n"));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/board.rs:274:29
[INFO] [stderr]     |
[INFO] [stderr] 274 |                     None => try!(write!(f, "\u{2591}\u{2591}")),
[INFO] [stderr]     |                             ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/board.rs:275:32
[INFO] [stderr]     |
[INFO] [stderr] 275 |                     Some(c) => try!(write!(f, "\x1B[{}m\u{2588}\u{2588}\x1B[0m", 31 + c)),
[INFO] [stderr]     |                                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/board.rs:278:13
[INFO] [stderr]     |
[INFO] [stderr] 278 |             try!(write!(f, "\n"));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `a`
[INFO] [stderr]    --> src/board.rs:249:13
[INFO] [stderr]     |
[INFO] [stderr] 249 |         let a = if first < margin { 0 } else { first - margin };
[INFO] [stderr]     |             ^ help: consider prefixing with an underscore: `_a`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `b`
[INFO] [stderr]    --> src/board.rs:250:13
[INFO] [stderr]     |
[INFO] [stderr] 250 |         let b = (last + margin + 1).min(self.flags.len());
[INFO] [stderr]     |             ^ help: consider prefixing with an underscore: `_b`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `p`
[INFO] [stderr]    --> src/board.rs:105:75
[INFO] [stderr]     |
[INFO] [stderr] 105 |     let translations = v.translations(board_width, board_height).map(|(o, p)| o).collect::<Vec<_>>();
[INFO] [stderr]     |                                                                           ^ help: consider prefixing with an underscore: `_p`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `a`
[INFO] [stderr]    --> src/board.rs:249:13
[INFO] [stderr]     |
[INFO] [stderr] 249 |         let a = if first < margin { 0 } else { first - margin };
[INFO] [stderr]     |             ^ help: consider prefixing with an underscore: `_a`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `b`
[INFO] [stderr]    --> src/board.rs:250:13
[INFO] [stderr]     |
[INFO] [stderr] 250 |         let b = (last + margin + 1).min(self.flags.len());
[INFO] [stderr]     |             ^ help: consider prefixing with an underscore: `_b`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.22s
[INFO] running `"docker" "inspect" "a5ab7053be6a69147091f8438b7b5a5b8931a20d4b19854172a504d6c481ed70"`
[INFO] running `"docker" "rm" "-f" "a5ab7053be6a69147091f8438b7b5a5b8931a20d4b19854172a504d6c481ed70"`
[INFO] [stdout] a5ab7053be6a69147091f8438b7b5a5b8931a20d4b19854172a504d6c481ed70