[INFO] cloning repository https://github.com/Pluriscient/rust-sudoku-solver
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Pluriscient/rust-sudoku-solver" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPluriscient%2Frust-sudoku-solver", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPluriscient%2Frust-sudoku-solver'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 59e93cb54827eb3c1977405ddcadf052ed1f8ef4
[INFO] checking Pluriscient/rust-sudoku-solver against master#af4a5a13a15fa0c60e06321077ef452f769b42fd for pr-122960-4
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPluriscient%2Frust-sudoku-solver" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Pluriscient/rust-sudoku-solver on toolchain af4a5a13a15fa0c60e06321077ef452f769b42fd
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Pluriscient/rust-sudoku-solver
[INFO] finished tweaking git repo https://github.com/Pluriscient/rust-sudoku-solver
[INFO] tweaked toml for git repo https://github.com/Pluriscient/rust-sudoku-solver written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/Pluriscient/rust-sudoku-solver already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 58142d589da94a5b432e7cf68bb72509da31b7dd63d05a1c795e1c11e945d3eb
[INFO] running `Command { std: "docker" "start" "-a" "58142d589da94a5b432e7cf68bb72509da31b7dd63d05a1c795e1c11e945d3eb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "58142d589da94a5b432e7cf68bb72509da31b7dd63d05a1c795e1c11e945d3eb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "58142d589da94a5b432e7cf68bb72509da31b7dd63d05a1c795e1c11e945d3eb", kill_on_drop: false }`
[INFO] [stdout] 58142d589da94a5b432e7cf68bb72509da31b7dd63d05a1c795e1c11e945d3eb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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=allow" "-e" "RUSTDOCFLAGS=--cap-lints=allow" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f57d2d541fd87791e92e2191e57149209b9738d7099729bfbcc7e49f0e498380
[INFO] running `Command { std: "docker" "start" "-a" "f57d2d541fd87791e92e2191e57149209b9738d7099729bfbcc7e49f0e498380", kill_on_drop: false }`
[INFO] [stderr]     Checking sudoku-solver v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> src/sudokutwo.rs:138:61
[INFO] [stdout]     |
[INFO] [stdout] 138 |                 1 if !pos_locs[0].1.is_fixed() => self.data.borrow_mut()[indices[pos_locs[0].0]] = mask,
[INFO] [stdout]     |                                                             ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: try using a fully qualified path to specify the expected types
[INFO] [stdout]     |
[INFO] [stdout] 138 |                 1 if !pos_locs[0].1.is_fixed() => <[u16; 81] as BorrowMut<Borrowed>>::borrow_mut(&mut self.data)[indices[pos_locs[0].0]] = mask,
[INFO] [stdout]     |                                                   +++++++++++++++++++++++++++++++++++++++++++++++++++          ~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> src/sudokutwo.rs:138:61
[INFO] [stdout]     |
[INFO] [stdout] 138 |                 1 if !pos_locs[0].1.is_fixed() => self.data.borrow_mut()[indices[pos_locs[0].0]] = mask,
[INFO] [stdout]     |                                                             ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: try using a fully qualified path to specify the expected types
[INFO] [stdout]     |
[INFO] [stdout] 138 |                 1 if !pos_locs[0].1.is_fixed() => <[u16; 81] as BorrowMut<Borrowed>>::borrow_mut(&mut self.data)[indices[pos_locs[0].0]] = mask,
[INFO] [stdout]     |                                                   +++++++++++++++++++++++++++++++++++++++++++++++++++          ~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0282`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `sudoku-solver` (bin "sudoku-solver") due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0282`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `sudoku-solver` (bin "sudoku-solver" test) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "f57d2d541fd87791e92e2191e57149209b9738d7099729bfbcc7e49f0e498380", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f57d2d541fd87791e92e2191e57149209b9738d7099729bfbcc7e49f0e498380", kill_on_drop: false }`
[INFO] [stdout] f57d2d541fd87791e92e2191e57149209b9738d7099729bfbcc7e49f0e498380