[INFO] cloning repository https://github.com/JohnnyUrosevic/chess
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/JohnnyUrosevic/chess" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJohnnyUrosevic%2Fchess", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJohnnyUrosevic%2Fchess'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c462c4da6ba729e372984a493ac54332bc6418d4
[INFO] testing JohnnyUrosevic/chess against try#17092ad00ed8fe1e7f81a7e38238ff70779034b1 for pr-140985
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJohnnyUrosevic%2Fchess" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/JohnnyUrosevic/chess on toolchain 17092ad00ed8fe1e7f81a7e38238ff70779034b1
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+17092ad00ed8fe1e7f81a7e38238ff70779034b1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/JohnnyUrosevic/chess
[INFO] finished tweaking git repo https://github.com/JohnnyUrosevic/chess
[INFO] tweaked toml for git repo https://github.com/JohnnyUrosevic/chess written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/JohnnyUrosevic/chess 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" "+17092ad00ed8fe1e7f81a7e38238ff70779034b1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
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[INFO] [stderr]     Blocking waiting for file lock on package cache
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+17092ad00ed8fe1e7f81a7e38238ff70779034b1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 79a443b642ab26496d073a52f39e1cfd6f3cf58004113dbf14a8a51f540e306d
[INFO] running `Command { std: "docker" "start" "-a" "79a443b642ab26496d073a52f39e1cfd6f3cf58004113dbf14a8a51f540e306d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "79a443b642ab26496d073a52f39e1cfd6f3cf58004113dbf14a8a51f540e306d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "79a443b642ab26496d073a52f39e1cfd6f3cf58004113dbf14a8a51f540e306d", kill_on_drop: false }`
[INFO] [stdout] 79a443b642ab26496d073a52f39e1cfd6f3cf58004113dbf14a8a51f540e306d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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" "RUSTDOCFLAGS=--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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+17092ad00ed8fe1e7f81a7e38238ff70779034b1" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f9d42ccd0c3c033780b3df0f30943f9b9efa2a591c3cc5df1ee8152f8a6abfa3
[INFO] running `Command { std: "docker" "start" "-a" "f9d42ccd0c3c033780b3df0f30943f9b9efa2a591c3cc5df1ee8152f8a6abfa3", kill_on_drop: false }`
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[INFO] [stderr]    Compiling chess v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0635]: unknown feature `option_result_contains`
[INFO] [stdout]  --> src/main.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(option_result_contains)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `contains` found for enum `Option` in the current scope
[INFO] [stdout]   --> src/main.rs:58:46
[INFO] [stdout]    |
[INFO] [stdout] 58 |                 let color = if self.selected.contains(&square) {
[INFO] [stdout]    |                                              ^^^^^^^^ method not found in `Option<Square>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `contains` found for enum `Option` in the current scope
[INFO] [stdout]    --> src/main.rs:120:38
[INFO] [stdout]     |
[INFO] [stdout] 120 |                 .filter(|x| x.from().contains(&selected_square))
[INFO] [stdout]     |                                      ^^^^^^^^ method not found in `Option<Square>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0599, E0635.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0599`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `chess` (bin "chess") due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "f9d42ccd0c3c033780b3df0f30943f9b9efa2a591c3cc5df1ee8152f8a6abfa3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f9d42ccd0c3c033780b3df0f30943f9b9efa2a591c3cc5df1ee8152f8a6abfa3", kill_on_drop: false }`
[INFO] [stdout] f9d42ccd0c3c033780b3df0f30943f9b9efa2a591c3cc5df1ee8152f8a6abfa3