[INFO] cloning repository https://github.com/kahirokunn/minimax_tic_tac_toe
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kahirokunn/minimax_tic_tac_toe" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkahirokunn%2Fminimax_tic_tac_toe", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkahirokunn%2Fminimax_tic_tac_toe'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c56f62d0b0700539f87d470f232e523024c1e4a9
[INFO] checking kahirokunn/minimax_tic_tac_toe against try#b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b for pr-82781
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkahirokunn%2Fminimax_tic_tac_toe" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/kahirokunn/minimax_tic_tac_toe on toolchain b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/kahirokunn/minimax_tic_tac_toe
[INFO] finished tweaking git repo https://github.com/kahirokunn/minimax_tic_tac_toe
[INFO] tweaked toml for git repo https://github.com/kahirokunn/minimax_tic_tac_toe written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/kahirokunn/minimax_tic_tac_toe already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded wasm-bindgen-macro-support v0.2.47
[INFO] [stderr]   Downloaded serde v1.0.93
[INFO] [stderr]   Downloaded wasm-bindgen-shared v0.2.47
[INFO] [stderr]   Downloaded serde_derive v1.0.93
[INFO] [stderr]   Downloaded bumpalo v2.4.3
[INFO] [stderr]   Downloaded wasm-bindgen-backend v0.2.47
[INFO] [stderr]   Downloaded wasm-bindgen-macro v0.2.47
[INFO] [stderr]   Downloaded wasm-bindgen v0.2.47
[INFO] running `Command { std: "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" "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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 308572714f6083c8f21f64932042d489542b14736ca510bb30c99e504ad5e57e
[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" "308572714f6083c8f21f64932042d489542b14736ca510bb30c99e504ad5e57e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "308572714f6083c8f21f64932042d489542b14736ca510bb30c99e504ad5e57e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "308572714f6083c8f21f64932042d489542b14736ca510bb30c99e504ad5e57e", kill_on_drop: false }`
[INFO] [stdout] 308572714f6083c8f21f64932042d489542b14736ca510bb30c99e504ad5e57e
[INFO] running `Command { std: "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" "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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a2b2a5d3281e423aed35c7479f29de7a345d60b9788e7a17fa96774f472ccc18
[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" "a2b2a5d3281e423aed35c7479f29de7a345d60b9788e7a17fa96774f472ccc18", kill_on_drop: false }`
[INFO] [stderr] warning: The package `minimax_ttt` provides no linkable target. The compiler might raise an error while compiling `ttt`. Consider adding 'dylib' or 'rlib' to key `crate-type` in `minimax_ttt`'s Cargo.toml. This warning might turn into a hard error in the future.
[INFO] [stderr] warning: The package `minimax_ttt` provides no linkable target. The compiler might raise an error while compiling `ttt`. Consider adding 'dylib' or 'rlib' to key `crate-type` in `minimax_ttt`'s Cargo.toml. This warning might turn into a hard error in the future.
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling syn v0.15.38
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.47
[INFO] [stderr]    Compiling cfg-if v0.1.9
[INFO] [stderr]    Compiling serde v1.0.93
[INFO] [stderr]    Compiling lazy_static v1.3.0
[INFO] [stderr]    Compiling ryu v0.2.8
[INFO] [stderr]     Checking itoa v0.4.4
[INFO] [stderr]    Compiling wasm-bindgen v0.2.47
[INFO] [stderr]    Compiling log v0.4.6
[INFO] [stderr]    Compiling quote v0.6.12
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.47
[INFO] [stderr]    Compiling serde_derive v1.0.93
[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.47
[INFO] [stderr]    Compiling wasm-bindgen-macro v0.2.47
[INFO] [stderr]     Checking serde_json v1.0.39
[INFO] [stderr]     Checking minimax_ttt v0.1.0 (/opt/rustwide/workdir/minimax_ttt)
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> minimax_ttt/src/lib.rs:67:17
[INFO] [stdout]    |
[INFO] [stdout] 67 |     _ => panic!(format!("expected number type 0 or1 or 2 , got {}", num)),
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_fmt_panic)]` on by default
[INFO] [stdout]    = note: this is no longer accepted in Rust 2021
[INFO] [stdout]    = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]    |
[INFO] [stdout] 67 |     _ => panic!("expected number type 0 or1 or 2 , got {}", num),
[INFO] [stdout]    |                --                                             --
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking ttt v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0463]: can't find crate for `minimax_ttt`
[INFO] [stdout]  --> src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | extern crate minimax_ttt;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0463`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ttt`
[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[E0463]: can't find crate for `minimax_ttt`
[INFO] [stdout]  --> src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | extern crate minimax_ttt;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0463`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "a2b2a5d3281e423aed35c7479f29de7a345d60b9788e7a17fa96774f472ccc18", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a2b2a5d3281e423aed35c7479f29de7a345d60b9788e7a17fa96774f472ccc18", kill_on_drop: false }`
[INFO] [stdout] a2b2a5d3281e423aed35c7479f29de7a345d60b9788e7a17fa96774f472ccc18