[INFO] cloning repository https://github.com/fwillard/wchess
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/fwillard/wchess" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffwillard%2Fwchess", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffwillard%2Fwchess'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8f55d50451f70246c33e6fcdc64ae328cfaa63bb
[INFO] checking fwillard/wchess against try#b20a093d9fb1ffaa04ae9852cb034864a992bafd for pr-85073
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffwillard%2Fwchess" "/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/fwillard/wchess on toolchain b20a093d9fb1ffaa04ae9852cb034864a992bafd
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b20a093d9fb1ffaa04ae9852cb034864a992bafd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/fwillard/wchess
[INFO] finished tweaking git repo https://github.com/fwillard/wchess
[INFO] tweaked toml for git repo https://github.com/fwillard/wchess written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/fwillard/wchess already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b20a093d9fb1ffaa04ae9852cb034864a992bafd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+b20a093d9fb1ffaa04ae9852cb034864a992bafd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6c32c2c2af17000a2861c6b48d6d8ea51d5a9db1bd0de24cd71b52efe046d611
[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" "6c32c2c2af17000a2861c6b48d6d8ea51d5a9db1bd0de24cd71b52efe046d611", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6c32c2c2af17000a2861c6b48d6d8ea51d5a9db1bd0de24cd71b52efe046d611", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6c32c2c2af17000a2861c6b48d6d8ea51d5a9db1bd0de24cd71b52efe046d611", kill_on_drop: false }`
[INFO] [stdout] 6c32c2c2af17000a2861c6b48d6d8ea51d5a9db1bd0de24cd71b52efe046d611
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+b20a093d9fb1ffaa04ae9852cb034864a992bafd" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 824c81ac9db24e04f988180632d246956cf144f9ce45d0a9f777feef687b6f4b
[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" "824c81ac9db24e04f988180632d246956cf144f9ce45d0a9f777feef687b6f4b", kill_on_drop: false }`
[INFO] [stderr]     Checking regex-syntax v0.6.21
[INFO] [stderr]     Checking regex v1.4.2
[INFO] [stderr]     Checking chess v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0599]: no method named `print_board` found for struct `Board` in the current scope
[INFO] [stdout]  --> src/main.rs:9:7
[INFO] [stdout]   |
[INFO] [stdout] 9 |     b.print_board();
[INFO] [stdout]   |       ^^^^^^^^^^^ method not found in `Board`
[INFO] [stdout]   | 
[INFO] [stdout]  ::: src/board.rs:8:1
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub struct Board {
[INFO] [stdout]   | ---------------- method `print_board` not found for this
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `print_board` found for struct `Board` in the current scope
[INFO] [stdout]  --> src/main.rs:9:7
[INFO] [stdout]   |
[INFO] [stdout] 9 |     b.print_board();
[INFO] [stdout]   |       ^^^^^^^^^^^ method not found in `Board`
[INFO] [stdout]   | 
[INFO] [stdout]  ::: src/board.rs:8:1
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub struct Board {
[INFO] [stdout]   | ---------------- method `print_board` not found for this
[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 E0599`.
[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 E0599`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `chess`
[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] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "824c81ac9db24e04f988180632d246956cf144f9ce45d0a9f777feef687b6f4b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "824c81ac9db24e04f988180632d246956cf144f9ce45d0a9f777feef687b6f4b", kill_on_drop: false }`
[INFO] [stdout] 824c81ac9db24e04f988180632d246956cf144f9ce45d0a9f777feef687b6f4b