[INFO] updating cached repository msiemens/rust-tictactoe
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/msiemens/rust-tictactoe
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/msiemens/rust-tictactoe" "work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/gh/msiemens/rust-tictactoe"`
[INFO] [stderr] Cloning into 'work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/gh/msiemens/rust-tictactoe'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/msiemens/rust-tictactoe" "work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/msiemens/rust-tictactoe"`
[INFO] [stderr] Cloning into 'work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/msiemens/rust-tictactoe'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] a8886bdf40bef1bf5b6c9ea806e9155d6206bcdf
[INFO] sha for GitHub repo msiemens/rust-tictactoe: a8886bdf40bef1bf5b6c9ea806e9155d6206bcdf
[INFO] validating manifest of msiemens/rust-tictactoe on toolchain master#435236b8877cdb98c82eaebfb7887782277265c5
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+435236b8877cdb98c82eaebfb7887782277265c5-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of msiemens/rust-tictactoe on toolchain try#b5c7f157c20453dde8d47371abe73b32351b4e7f
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing msiemens/rust-tictactoe
[INFO] finished frobbing msiemens/rust-tictactoe
[INFO] frobbed toml for msiemens/rust-tictactoe written to work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/gh/msiemens/rust-tictactoe/Cargo.toml
[INFO] started frobbing msiemens/rust-tictactoe
[INFO] finished frobbing msiemens/rust-tictactoe
[INFO] frobbed toml for msiemens/rust-tictactoe written to work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/msiemens/rust-tictactoe/Cargo.toml
[INFO] crate msiemens/rust-tictactoe already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+435236b8877cdb98c82eaebfb7887782277265c5-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking msiemens/rust-tictactoe against try#b5c7f157c20453dde8d47371abe73b32351b4e7f for pr-62849
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62849/worker-0/try#b5c7f157c20453dde8d47371abe73b32351b4e7f:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/msiemens/rust-tictactoe:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 74c8d0781f16c6d2619fc10e8a18e41504aca950fbc15ba2c451e6a9b17776e9
[INFO] running `"docker" "start" "-a" "74c8d0781f16c6d2619fc10e8a18e41504aca950fbc15ba2c451e6a9b17776e9"`
[INFO] [stderr]    Compiling enum-display-derive v0.1.0
[INFO] [stderr]     Checking mcts v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.36s
[INFO] running `"docker" "inspect" "74c8d0781f16c6d2619fc10e8a18e41504aca950fbc15ba2c451e6a9b17776e9"`
[INFO] running `"docker" "rm" "-f" "74c8d0781f16c6d2619fc10e8a18e41504aca950fbc15ba2c451e6a9b17776e9"`
[INFO] [stdout] 74c8d0781f16c6d2619fc10e8a18e41504aca950fbc15ba2c451e6a9b17776e9