[INFO] updating cached repository mratsim/rustygo
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/mratsim/rustygo
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/mratsim/rustygo" "work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/gh/mratsim/rustygo"`
[INFO] [stderr] Cloning into 'work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/gh/mratsim/rustygo'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/mratsim/rustygo" "work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/mratsim/rustygo"`
[INFO] [stderr] Cloning into 'work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/mratsim/rustygo'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] e854f826c2cb2062b78de769f203cc072df38dd9
[INFO] sha for GitHub repo mratsim/rustygo: e854f826c2cb2062b78de769f203cc072df38dd9
[INFO] validating manifest of mratsim/rustygo on toolchain master#0f88167f89fffe321590c5148f21b7d51d44388d
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0f88167f89fffe321590c5148f21b7d51d44388d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of mratsim/rustygo on toolchain try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing mratsim/rustygo
[INFO] finished frobbing mratsim/rustygo
[INFO] frobbed toml for mratsim/rustygo written to work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/gh/mratsim/rustygo/Cargo.toml
[INFO] started frobbing mratsim/rustygo
[INFO] finished frobbing mratsim/rustygo
[INFO] frobbed toml for mratsim/rustygo written to work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/mratsim/rustygo/Cargo.toml
[INFO] crate mratsim/rustygo already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0f88167f89fffe321590c5148f21b7d51d44388d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking mratsim/rustygo against try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b for pr-58948
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-58948/worker-1/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/mratsim/rustygo:/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" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] e38efc8e772617440702fcf6329e7a6ae90720709b964efdd2dd912f5fffe33a
[INFO] running `"docker" "start" "-a" "e38efc8e772617440702fcf6329e7a6ae90720709b964efdd2dd912f5fffe33a"`
[INFO] [stderr]     Checking winapi v0.2.5
[INFO] [stderr]     Checking libc v0.2.4
[INFO] [stderr]     Checking itertools v0.4.6
[INFO] [stderr]     Checking fnv v1.0.2
[INFO] [stderr]     Checking lazy_static v0.2.1
[INFO] [stderr]    Compiling advapi32-sys v0.1.2
[INFO] [stderr]     Checking rand v0.3.12
[INFO] [stderr]     Checking rusty_go v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: type `MCTS_tree` should have an upper camel case name
[INFO] [stderr]    --> src/main.rs:511:8
[INFO] [stderr]     |
[INFO] [stderr] 511 | struct MCTS_tree{
[INFO] [stderr]     |        ^^^^^^^^^ help: convert the identifier to upper camel case: `MctsTree`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(non_camel_case_types)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: type `MCTS_tree` should have an upper camel case name
[INFO] [stderr]    --> src/main.rs:511:8
[INFO] [stderr]     |
[INFO] [stderr] 511 | struct MCTS_tree{
[INFO] [stderr]     |        ^^^^^^^^^ help: convert the identifier to upper camel case: `MctsTree`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(non_camel_case_types)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `BufRead`
[INFO] [stderr]   --> src/main.rs:19:22
[INFO] [stderr]    |
[INFO] [stderr] 19 | use std::io::{stdin, BufRead};
[INFO] [stderr]    |                      ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `BufRead`
[INFO] [stderr]   --> src/main.rs:19:22
[INFO] [stderr]    |
[INFO] [stderr] 19 | use std::io::{stdin, BufRead};
[INFO] [stderr]    |                      ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:659:13
[INFO] [stderr]     |
[INFO] [stderr] 659 |         let mut tree = MCTS_tree {
[INFO] [stderr]     |             ----^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `SCORE_TO_BEAT`
[INFO] [stderr]   --> src/main.rs:28:1
[INFO] [stderr]    |
[INFO] [stderr] 28 | const SCORE_TO_BEAT: i16 = 361; //Number of Intersections (used for half-step counting)
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]    --> src/main.rs:525:5
[INFO] [stderr]     |
[INFO] [stderr] 525 |     fn new() -> MCTS_tree{
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:659:13
[INFO] [stderr]     |
[INFO] [stderr] 659 |         let mut tree = MCTS_tree {
[INFO] [stderr]     |             ----^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `SCORE_TO_BEAT`
[INFO] [stderr]   --> src/main.rs:28:1
[INFO] [stderr]    |
[INFO] [stderr] 28 | const SCORE_TO_BEAT: i16 = 361; //Number of Intersections (used for half-step counting)
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]    --> src/main.rs:525:5
[INFO] [stderr]     |
[INFO] [stderr] 525 |     fn new() -> MCTS_tree{
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.51s
[INFO] running `"docker" "inspect" "e38efc8e772617440702fcf6329e7a6ae90720709b964efdd2dd912f5fffe33a"`
[INFO] running `"docker" "rm" "-f" "e38efc8e772617440702fcf6329e7a6ae90720709b964efdd2dd912f5fffe33a"`
[INFO] [stdout] e38efc8e772617440702fcf6329e7a6ae90720709b964efdd2dd912f5fffe33a