[INFO] cloning repository https://github.com/cabalamat/ruchess
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/cabalamat/ruchess" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcabalamat%2Fruchess", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcabalamat%2Fruchess'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 44b1f3c83afbe95090a2b86906c557ef51d17710
[INFO] checking cabalamat/ruchess against master#a5f164faad4a2fed606b8160fd7ecd2d5cbba381 for pr-84920
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcabalamat%2Fruchess" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/cabalamat/ruchess on toolchain a5f164faad4a2fed606b8160fd7ecd2d5cbba381
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/cabalamat/ruchess
[INFO] finished tweaking git repo https://github.com/cabalamat/ruchess
[INFO] tweaked toml for git repo https://github.com/cabalamat/ruchess written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/cabalamat/ruchess already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 74a2628dd4f779ef9ef64b353b99ed2015b5e191ff33b1a01c5609768268637d
[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" "74a2628dd4f779ef9ef64b353b99ed2015b5e191ff33b1a01c5609768268637d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "74a2628dd4f779ef9ef64b353b99ed2015b5e191ff33b1a01c5609768268637d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "74a2628dd4f779ef9ef64b353b99ed2015b5e191ff33b1a01c5609768268637d", kill_on_drop: false }`
[INFO] [stdout] 74a2628dd4f779ef9ef64b353b99ed2015b5e191ff33b1a01c5609768268637d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] db213b1cde2326ae196c29dbb899185ea9c2b877298e7df8c555650a6bfc4e9a
[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" "db213b1cde2326ae196c29dbb899185ea9c2b877298e7df8c555650a6bfc4e9a", kill_on_drop: false }`
[INFO] [stderr]     Checking ruchess v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0507]: cannot move out of `*sqv` which is behind a shared reference
[INFO] [stdout]    --> src/main.rs:110:22
[INFO] [stdout]     |
[INFO] [stdout] 110 |                 s += sqv.to_string();
[INFO] [stdout]     |                      ^^^ move occurs because `*sqv` has type `SqValue`, which does not implement the `Copy` trait
[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 E0507`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ruchess`
[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[E0507]: cannot move out of `*sqv` which is behind a shared reference
[INFO] [stdout]    --> src/main.rs:110:22
[INFO] [stdout]     |
[INFO] [stdout] 110 |                 s += sqv.to_string();
[INFO] [stdout]     |                      ^^^ move occurs because `*sqv` has type `SqValue`, which does not implement the `Copy` trait
[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 E0507`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "db213b1cde2326ae196c29dbb899185ea9c2b877298e7df8c555650a6bfc4e9a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "db213b1cde2326ae196c29dbb899185ea9c2b877298e7df8c555650a6bfc4e9a", kill_on_drop: false }`
[INFO] [stdout] db213b1cde2326ae196c29dbb899185ea9c2b877298e7df8c555650a6bfc4e9a